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-rw-r--r--media/ffvpx/libavcodec/vp9.c4365
1 files changed, 4365 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vp9.c b/media/ffvpx/libavcodec/vp9.c
new file mode 100644
index 000000000..3b721495d
--- /dev/null
+++ b/media/ffvpx/libavcodec/vp9.c
@@ -0,0 +1,4365 @@
+/*
+ * VP9 compatible video decoder
+ *
+ * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
+ * Copyright (C) 2013 Clément Bœsch <u pkh me>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "get_bits.h"
+#include "internal.h"
+#include "profiles.h"
+#include "thread.h"
+#include "videodsp.h"
+#include "vp56.h"
+#include "vp9.h"
+#include "vp9data.h"
+#include "vp9dsp.h"
+#include "libavutil/avassert.h"
+#include "libavutil/pixdesc.h"
+
+#define VP9_SYNCCODE 0x498342
+
+struct VP9Filter {
+ uint8_t level[8 * 8];
+ uint8_t /* bit=col */ mask[2 /* 0=y, 1=uv */][2 /* 0=col, 1=row */]
+ [8 /* rows */][4 /* 0=16, 1=8, 2=4, 3=inner4 */];
+};
+
+typedef struct VP9Block {
+ uint8_t seg_id, intra, comp, ref[2], mode[4], uvmode, skip;
+ enum FilterMode filter;
+ VP56mv mv[4 /* b_idx */][2 /* ref */];
+ enum BlockSize bs;
+ enum TxfmMode tx, uvtx;
+ enum BlockLevel bl;
+ enum BlockPartition bp;
+} VP9Block;
+
+typedef struct VP9Context {
+ VP9SharedContext s;
+
+ VP9DSPContext dsp;
+ VideoDSPContext vdsp;
+ GetBitContext gb;
+ VP56RangeCoder c;
+ VP56RangeCoder *c_b;
+ unsigned c_b_size;
+ VP9Block *b_base, *b;
+ int pass;
+ int row, row7, col, col7;
+ uint8_t *dst[3];
+ ptrdiff_t y_stride, uv_stride;
+
+ uint8_t ss_h, ss_v;
+ uint8_t last_bpp, bpp, bpp_index, bytesperpixel;
+ uint8_t last_keyframe;
+ // sb_cols/rows, rows/cols and last_fmt are used for allocating all internal
+ // arrays, and are thus per-thread. w/h and gf_fmt are synced between threads
+ // and are therefore per-stream. pix_fmt represents the value in the header
+ // of the currently processed frame.
+ int w, h;
+ enum AVPixelFormat pix_fmt, last_fmt, gf_fmt;
+ unsigned sb_cols, sb_rows, rows, cols;
+ ThreadFrame next_refs[8];
+
+ struct {
+ uint8_t lim_lut[64];
+ uint8_t mblim_lut[64];
+ } filter_lut;
+ unsigned tile_row_start, tile_row_end, tile_col_start, tile_col_end;
+ struct {
+ prob_context p;
+ uint8_t coef[4][2][2][6][6][3];
+ } prob_ctx[4];
+ struct {
+ prob_context p;
+ uint8_t coef[4][2][2][6][6][11];
+ } prob;
+ struct {
+ unsigned y_mode[4][10];
+ unsigned uv_mode[10][10];
+ unsigned filter[4][3];
+ unsigned mv_mode[7][4];
+ unsigned intra[4][2];
+ unsigned comp[5][2];
+ unsigned single_ref[5][2][2];
+ unsigned comp_ref[5][2];
+ unsigned tx32p[2][4];
+ unsigned tx16p[2][3];
+ unsigned tx8p[2][2];
+ unsigned skip[3][2];
+ unsigned mv_joint[4];
+ struct {
+ unsigned sign[2];
+ unsigned classes[11];
+ unsigned class0[2];
+ unsigned bits[10][2];
+ unsigned class0_fp[2][4];
+ unsigned fp[4];
+ unsigned class0_hp[2];
+ unsigned hp[2];
+ } mv_comp[2];
+ unsigned partition[4][4][4];
+ unsigned coef[4][2][2][6][6][3];
+ unsigned eob[4][2][2][6][6][2];
+ } counts;
+
+ // contextual (left/above) cache
+ DECLARE_ALIGNED(16, uint8_t, left_y_nnz_ctx)[16];
+ DECLARE_ALIGNED(16, uint8_t, left_mode_ctx)[16];
+ DECLARE_ALIGNED(16, VP56mv, left_mv_ctx)[16][2];
+ DECLARE_ALIGNED(16, uint8_t, left_uv_nnz_ctx)[2][16];
+ DECLARE_ALIGNED(8, uint8_t, left_partition_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_skip_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_txfm_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_segpred_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_intra_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_comp_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_ref_ctx)[8];
+ DECLARE_ALIGNED(8, uint8_t, left_filter_ctx)[8];
+ uint8_t *above_partition_ctx;
+ uint8_t *above_mode_ctx;
+ // FIXME maybe merge some of the below in a flags field?
+ uint8_t *above_y_nnz_ctx;
+ uint8_t *above_uv_nnz_ctx[2];
+ uint8_t *above_skip_ctx; // 1bit
+ uint8_t *above_txfm_ctx; // 2bit
+ uint8_t *above_segpred_ctx; // 1bit
+ uint8_t *above_intra_ctx; // 1bit
+ uint8_t *above_comp_ctx; // 1bit
+ uint8_t *above_ref_ctx; // 2bit
+ uint8_t *above_filter_ctx;
+ VP56mv (*above_mv_ctx)[2];
+
+ // whole-frame cache
+ uint8_t *intra_pred_data[3];
+ struct VP9Filter *lflvl;
+ DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer)[135 * 144 * 2];
+
+ // block reconstruction intermediates
+ int block_alloc_using_2pass;
+ int16_t *block_base, *block, *uvblock_base[2], *uvblock[2];
+ uint8_t *eob_base, *uveob_base[2], *eob, *uveob[2];
+ struct { int x, y; } min_mv, max_mv;
+ DECLARE_ALIGNED(32, uint8_t, tmp_y)[64 * 64 * 2];
+ DECLARE_ALIGNED(32, uint8_t, tmp_uv)[2][64 * 64 * 2];
+ uint16_t mvscale[3][2];
+ uint8_t mvstep[3][2];
+} VP9Context;
+
+static const uint8_t bwh_tab[2][N_BS_SIZES][2] = {
+ {
+ { 16, 16 }, { 16, 8 }, { 8, 16 }, { 8, 8 }, { 8, 4 }, { 4, 8 },
+ { 4, 4 }, { 4, 2 }, { 2, 4 }, { 2, 2 }, { 2, 1 }, { 1, 2 }, { 1, 1 },
+ }, {
+ { 8, 8 }, { 8, 4 }, { 4, 8 }, { 4, 4 }, { 4, 2 }, { 2, 4 },
+ { 2, 2 }, { 2, 1 }, { 1, 2 }, { 1, 1 }, { 1, 1 }, { 1, 1 }, { 1, 1 },
+ }
+};
+
+static void vp9_unref_frame(AVCodecContext *ctx, VP9Frame *f)
+{
+ ff_thread_release_buffer(ctx, &f->tf);
+ av_buffer_unref(&f->extradata);
+ av_buffer_unref(&f->hwaccel_priv_buf);
+ f->segmentation_map = NULL;
+ f->hwaccel_picture_private = NULL;
+}
+
+static int vp9_alloc_frame(AVCodecContext *ctx, VP9Frame *f)
+{
+ VP9Context *s = ctx->priv_data;
+ int ret, sz;
+
+ if ((ret = ff_thread_get_buffer(ctx, &f->tf, AV_GET_BUFFER_FLAG_REF)) < 0)
+ return ret;
+ sz = 64 * s->sb_cols * s->sb_rows;
+ if (!(f->extradata = av_buffer_allocz(sz * (1 + sizeof(struct VP9mvrefPair))))) {
+ goto fail;
+ }
+
+ f->segmentation_map = f->extradata->data;
+ f->mv = (struct VP9mvrefPair *) (f->extradata->data + sz);
+
+ if (ctx->hwaccel) {
+ const AVHWAccel *hwaccel = ctx->hwaccel;
+ av_assert0(!f->hwaccel_picture_private);
+ if (hwaccel->frame_priv_data_size) {
+ f->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
+ if (!f->hwaccel_priv_buf)
+ goto fail;
+ f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
+ }
+ }
+
+ return 0;
+
+fail:
+ vp9_unref_frame(ctx, f);
+ return AVERROR(ENOMEM);
+}
+
+static int vp9_ref_frame(AVCodecContext *ctx, VP9Frame *dst, VP9Frame *src)
+{
+ int res;
+
+ if ((res = ff_thread_ref_frame(&dst->tf, &src->tf)) < 0) {
+ return res;
+ } else if (!(dst->extradata = av_buffer_ref(src->extradata))) {
+ goto fail;
+ }
+
+ dst->segmentation_map = src->segmentation_map;
+ dst->mv = src->mv;
+ dst->uses_2pass = src->uses_2pass;
+
+ if (src->hwaccel_picture_private) {
+ dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
+ if (!dst->hwaccel_priv_buf)
+ goto fail;
+ dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
+ }
+
+ return 0;
+
+fail:
+ vp9_unref_frame(ctx, dst);
+ return AVERROR(ENOMEM);
+}
+
+static int update_size(AVCodecContext *ctx, int w, int h)
+{
+#define HWACCEL_MAX (CONFIG_VP9_DXVA2_HWACCEL + CONFIG_VP9_D3D11VA_HWACCEL + CONFIG_VP9_VAAPI_HWACCEL)
+ enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
+ VP9Context *s = ctx->priv_data;
+ uint8_t *p;
+ int bytesperpixel = s->bytesperpixel, res, cols, rows;
+
+ av_assert0(w > 0 && h > 0);
+
+ if (!(s->pix_fmt == s->gf_fmt && w == s->w && h == s->h)) {
+ if ((res = ff_set_dimensions(ctx, w, h)) < 0)
+ return res;
+
+ if (s->pix_fmt == AV_PIX_FMT_YUV420P) {
+#if CONFIG_VP9_DXVA2_HWACCEL
+ *fmtp++ = AV_PIX_FMT_DXVA2_VLD;
+#endif
+#if CONFIG_VP9_D3D11VA_HWACCEL
+ *fmtp++ = AV_PIX_FMT_D3D11VA_VLD;
+#endif
+#if CONFIG_VP9_VAAPI_HWACCEL
+ *fmtp++ = AV_PIX_FMT_VAAPI;
+#endif
+ }
+
+ *fmtp++ = s->pix_fmt;
+ *fmtp = AV_PIX_FMT_NONE;
+
+ res = ff_thread_get_format(ctx, pix_fmts);
+ if (res < 0)
+ return res;
+
+ ctx->pix_fmt = res;
+ s->gf_fmt = s->pix_fmt;
+ s->w = w;
+ s->h = h;
+ }
+
+ cols = (w + 7) >> 3;
+ rows = (h + 7) >> 3;
+
+ if (s->intra_pred_data[0] && cols == s->cols && rows == s->rows && s->pix_fmt == s->last_fmt)
+ return 0;
+
+ s->last_fmt = s->pix_fmt;
+ s->sb_cols = (w + 63) >> 6;
+ s->sb_rows = (h + 63) >> 6;
+ s->cols = (w + 7) >> 3;
+ s->rows = (h + 7) >> 3;
+
+#define assign(var, type, n) var = (type) p; p += s->sb_cols * (n) * sizeof(*var)
+ av_freep(&s->intra_pred_data[0]);
+ // FIXME we slightly over-allocate here for subsampled chroma, but a little
+ // bit of padding shouldn't affect performance...
+ p = av_malloc(s->sb_cols * (128 + 192 * bytesperpixel +
+ sizeof(*s->lflvl) + 16 * sizeof(*s->above_mv_ctx)));
+ if (!p)
+ return AVERROR(ENOMEM);
+ assign(s->intra_pred_data[0], uint8_t *, 64 * bytesperpixel);
+ assign(s->intra_pred_data[1], uint8_t *, 64 * bytesperpixel);
+ assign(s->intra_pred_data[2], uint8_t *, 64 * bytesperpixel);
+ assign(s->above_y_nnz_ctx, uint8_t *, 16);
+ assign(s->above_mode_ctx, uint8_t *, 16);
+ assign(s->above_mv_ctx, VP56mv(*)[2], 16);
+ assign(s->above_uv_nnz_ctx[0], uint8_t *, 16);
+ assign(s->above_uv_nnz_ctx[1], uint8_t *, 16);
+ assign(s->above_partition_ctx, uint8_t *, 8);
+ assign(s->above_skip_ctx, uint8_t *, 8);
+ assign(s->above_txfm_ctx, uint8_t *, 8);
+ assign(s->above_segpred_ctx, uint8_t *, 8);
+ assign(s->above_intra_ctx, uint8_t *, 8);
+ assign(s->above_comp_ctx, uint8_t *, 8);
+ assign(s->above_ref_ctx, uint8_t *, 8);
+ assign(s->above_filter_ctx, uint8_t *, 8);
+ assign(s->lflvl, struct VP9Filter *, 1);
+#undef assign
+
+ // these will be re-allocated a little later
+ av_freep(&s->b_base);
+ av_freep(&s->block_base);
+
+ if (s->bpp != s->last_bpp) {
+ ff_vp9dsp_init(&s->dsp, s->bpp, ctx->flags & AV_CODEC_FLAG_BITEXACT);
+ ff_videodsp_init(&s->vdsp, s->bpp);
+ s->last_bpp = s->bpp;
+ }
+
+ return 0;
+}
+
+static int update_block_buffers(AVCodecContext *ctx)
+{
+ VP9Context *s = ctx->priv_data;
+ int chroma_blocks, chroma_eobs, bytesperpixel = s->bytesperpixel;
+
+ if (s->b_base && s->block_base && s->block_alloc_using_2pass == s->s.frames[CUR_FRAME].uses_2pass)
+ return 0;
+
+ av_free(s->b_base);
+ av_free(s->block_base);
+ chroma_blocks = 64 * 64 >> (s->ss_h + s->ss_v);
+ chroma_eobs = 16 * 16 >> (s->ss_h + s->ss_v);
+ if (s->s.frames[CUR_FRAME].uses_2pass) {
+ int sbs = s->sb_cols * s->sb_rows;
+
+ s->b_base = av_malloc_array(s->cols * s->rows, sizeof(VP9Block));
+ s->block_base = av_mallocz(((64 * 64 + 2 * chroma_blocks) * bytesperpixel * sizeof(int16_t) +
+ 16 * 16 + 2 * chroma_eobs) * sbs);
+ if (!s->b_base || !s->block_base)
+ return AVERROR(ENOMEM);
+ s->uvblock_base[0] = s->block_base + sbs * 64 * 64 * bytesperpixel;
+ s->uvblock_base[1] = s->uvblock_base[0] + sbs * chroma_blocks * bytesperpixel;
+ s->eob_base = (uint8_t *) (s->uvblock_base[1] + sbs * chroma_blocks * bytesperpixel);
+ s->uveob_base[0] = s->eob_base + 16 * 16 * sbs;
+ s->uveob_base[1] = s->uveob_base[0] + chroma_eobs * sbs;
+ } else {
+ s->b_base = av_malloc(sizeof(VP9Block));
+ s->block_base = av_mallocz((64 * 64 + 2 * chroma_blocks) * bytesperpixel * sizeof(int16_t) +
+ 16 * 16 + 2 * chroma_eobs);
+ if (!s->b_base || !s->block_base)
+ return AVERROR(ENOMEM);
+ s->uvblock_base[0] = s->block_base + 64 * 64 * bytesperpixel;
+ s->uvblock_base[1] = s->uvblock_base[0] + chroma_blocks * bytesperpixel;
+ s->eob_base = (uint8_t *) (s->uvblock_base[1] + chroma_blocks * bytesperpixel);
+ s->uveob_base[0] = s->eob_base + 16 * 16;
+ s->uveob_base[1] = s->uveob_base[0] + chroma_eobs;
+ }
+ s->block_alloc_using_2pass = s->s.frames[CUR_FRAME].uses_2pass;
+
+ return 0;
+}
+
+// for some reason the sign bit is at the end, not the start, of a bit sequence
+static av_always_inline int get_sbits_inv(GetBitContext *gb, int n)
+{
+ int v = get_bits(gb, n);
+ return get_bits1(gb) ? -v : v;
+}
+
+static av_always_inline int inv_recenter_nonneg(int v, int m)
+{
+ return v > 2 * m ? v : v & 1 ? m - ((v + 1) >> 1) : m + (v >> 1);
+}
+
+// differential forward probability updates
+static int update_prob(VP56RangeCoder *c, int p)
+{
+ static const int inv_map_table[255] = {
+ 7, 20, 33, 46, 59, 72, 85, 98, 111, 124, 137, 150, 163, 176,
+ 189, 202, 215, 228, 241, 254, 1, 2, 3, 4, 5, 6, 8, 9,
+ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+ 70, 71, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
+ 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 99, 100,
+ 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112, 113, 114, 115,
+ 116, 117, 118, 119, 120, 121, 122, 123, 125, 126, 127, 128, 129, 130,
+ 131, 132, 133, 134, 135, 136, 138, 139, 140, 141, 142, 143, 144, 145,
+ 146, 147, 148, 149, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160,
+ 161, 162, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
+ 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 190, 191,
+ 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 203, 204, 205, 206,
+ 207, 208, 209, 210, 211, 212, 213, 214, 216, 217, 218, 219, 220, 221,
+ 222, 223, 224, 225, 226, 227, 229, 230, 231, 232, 233, 234, 235, 236,
+ 237, 238, 239, 240, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251,
+ 252, 253, 253,
+ };
+ int d;
+
+ /* This code is trying to do a differential probability update. For a
+ * current probability A in the range [1, 255], the difference to a new
+ * probability of any value can be expressed differentially as 1-A,255-A
+ * where some part of this (absolute range) exists both in positive as
+ * well as the negative part, whereas another part only exists in one
+ * half. We're trying to code this shared part differentially, i.e.
+ * times two where the value of the lowest bit specifies the sign, and
+ * the single part is then coded on top of this. This absolute difference
+ * then again has a value of [0,254], but a bigger value in this range
+ * indicates that we're further away from the original value A, so we
+ * can code this as a VLC code, since higher values are increasingly
+ * unlikely. The first 20 values in inv_map_table[] allow 'cheap, rough'
+ * updates vs. the 'fine, exact' updates further down the range, which
+ * adds one extra dimension to this differential update model. */
+
+ if (!vp8_rac_get(c)) {
+ d = vp8_rac_get_uint(c, 4) + 0;
+ } else if (!vp8_rac_get(c)) {
+ d = vp8_rac_get_uint(c, 4) + 16;
+ } else if (!vp8_rac_get(c)) {
+ d = vp8_rac_get_uint(c, 5) + 32;
+ } else {
+ d = vp8_rac_get_uint(c, 7);
+ if (d >= 65)
+ d = (d << 1) - 65 + vp8_rac_get(c);
+ d += 64;
+ av_assert2(d < FF_ARRAY_ELEMS(inv_map_table));
+ }
+
+ return p <= 128 ? 1 + inv_recenter_nonneg(inv_map_table[d], p - 1) :
+ 255 - inv_recenter_nonneg(inv_map_table[d], 255 - p);
+}
+
+static int read_colorspace_details(AVCodecContext *ctx)
+{
+ static const enum AVColorSpace colorspaces[8] = {
+ AVCOL_SPC_UNSPECIFIED, AVCOL_SPC_BT470BG, AVCOL_SPC_BT709, AVCOL_SPC_SMPTE170M,
+ AVCOL_SPC_SMPTE240M, AVCOL_SPC_BT2020_NCL, AVCOL_SPC_RESERVED, AVCOL_SPC_RGB,
+ };
+ VP9Context *s = ctx->priv_data;
+ int bits = ctx->profile <= 1 ? 0 : 1 + get_bits1(&s->gb); // 0:8, 1:10, 2:12
+
+ s->bpp_index = bits;
+ s->bpp = 8 + bits * 2;
+ s->bytesperpixel = (7 + s->bpp) >> 3;
+ ctx->colorspace = colorspaces[get_bits(&s->gb, 3)];
+ if (ctx->colorspace == AVCOL_SPC_RGB) { // RGB = profile 1
+ static const enum AVPixelFormat pix_fmt_rgb[3] = {
+ AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12
+ };
+ s->ss_h = s->ss_v = 0;
+ ctx->color_range = AVCOL_RANGE_JPEG;
+ s->pix_fmt = pix_fmt_rgb[bits];
+ if (ctx->profile & 1) {
+ if (get_bits1(&s->gb)) {
+ av_log(ctx, AV_LOG_ERROR, "Reserved bit set in RGB\n");
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ av_log(ctx, AV_LOG_ERROR, "RGB not supported in profile %d\n",
+ ctx->profile);
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ static const enum AVPixelFormat pix_fmt_for_ss[3][2 /* v */][2 /* h */] = {
+ { { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P },
+ { AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV420P } },
+ { { AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10 },
+ { AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV420P10 } },
+ { { AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12 },
+ { AV_PIX_FMT_YUV440P12, AV_PIX_FMT_YUV420P12 } }
+ };
+ ctx->color_range = get_bits1(&s->gb) ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+ if (ctx->profile & 1) {
+ s->ss_h = get_bits1(&s->gb);
+ s->ss_v = get_bits1(&s->gb);
+ s->pix_fmt = pix_fmt_for_ss[bits][s->ss_v][s->ss_h];
+ if (s->pix_fmt == AV_PIX_FMT_YUV420P) {
+ av_log(ctx, AV_LOG_ERROR, "YUV 4:2:0 not supported in profile %d\n",
+ ctx->profile);
+ return AVERROR_INVALIDDATA;
+ } else if (get_bits1(&s->gb)) {
+ av_log(ctx, AV_LOG_ERROR, "Profile %d color details reserved bit set\n",
+ ctx->profile);
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ s->ss_h = s->ss_v = 1;
+ s->pix_fmt = pix_fmt_for_ss[bits][1][1];
+ }
+ }
+
+ return 0;
+}
+
+static int decode_frame_header(AVCodecContext *ctx,
+ const uint8_t *data, int size, int *ref)
+{
+ VP9Context *s = ctx->priv_data;
+ int c, i, j, k, l, m, n, w, h, max, size2, res, sharp;
+ int last_invisible;
+ const uint8_t *data2;
+
+ /* general header */
+ if ((res = init_get_bits8(&s->gb, data, size)) < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to initialize bitstream reader\n");
+ return res;
+ }
+ if (get_bits(&s->gb, 2) != 0x2) { // frame marker
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame marker\n");
+ return AVERROR_INVALIDDATA;
+ }
+ ctx->profile = get_bits1(&s->gb);
+ ctx->profile |= get_bits1(&s->gb) << 1;
+ if (ctx->profile == 3) ctx->profile += get_bits1(&s->gb);
+ if (ctx->profile > 3) {
+ av_log(ctx, AV_LOG_ERROR, "Profile %d is not yet supported\n", ctx->profile);
+ return AVERROR_INVALIDDATA;
+ }
+ s->s.h.profile = ctx->profile;
+ if (get_bits1(&s->gb)) {
+ *ref = get_bits(&s->gb, 3);
+ return 0;
+ }
+ s->last_keyframe = s->s.h.keyframe;
+ s->s.h.keyframe = !get_bits1(&s->gb);
+ last_invisible = s->s.h.invisible;
+ s->s.h.invisible = !get_bits1(&s->gb);
+ s->s.h.errorres = get_bits1(&s->gb);
+ s->s.h.use_last_frame_mvs = !s->s.h.errorres && !last_invisible;
+ if (s->s.h.keyframe) {
+ if (get_bits_long(&s->gb, 24) != VP9_SYNCCODE) { // synccode
+ av_log(ctx, AV_LOG_ERROR, "Invalid sync code\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if ((res = read_colorspace_details(ctx)) < 0)
+ return res;
+ // for profile 1, here follows the subsampling bits
+ s->s.h.refreshrefmask = 0xff;
+ w = get_bits(&s->gb, 16) + 1;
+ h = get_bits(&s->gb, 16) + 1;
+ if (get_bits1(&s->gb)) // display size
+ skip_bits(&s->gb, 32);
+ } else {
+ s->s.h.intraonly = s->s.h.invisible ? get_bits1(&s->gb) : 0;
+ s->s.h.resetctx = s->s.h.errorres ? 0 : get_bits(&s->gb, 2);
+ if (s->s.h.intraonly) {
+ if (get_bits_long(&s->gb, 24) != VP9_SYNCCODE) { // synccode
+ av_log(ctx, AV_LOG_ERROR, "Invalid sync code\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (ctx->profile >= 1) {
+ if ((res = read_colorspace_details(ctx)) < 0)
+ return res;
+ } else {
+ s->ss_h = s->ss_v = 1;
+ s->bpp = 8;
+ s->bpp_index = 0;
+ s->bytesperpixel = 1;
+ s->pix_fmt = AV_PIX_FMT_YUV420P;
+ ctx->colorspace = AVCOL_SPC_BT470BG;
+ ctx->color_range = AVCOL_RANGE_JPEG;
+ }
+ s->s.h.refreshrefmask = get_bits(&s->gb, 8);
+ w = get_bits(&s->gb, 16) + 1;
+ h = get_bits(&s->gb, 16) + 1;
+ if (get_bits1(&s->gb)) // display size
+ skip_bits(&s->gb, 32);
+ } else {
+ s->s.h.refreshrefmask = get_bits(&s->gb, 8);
+ s->s.h.refidx[0] = get_bits(&s->gb, 3);
+ s->s.h.signbias[0] = get_bits1(&s->gb) && !s->s.h.errorres;
+ s->s.h.refidx[1] = get_bits(&s->gb, 3);
+ s->s.h.signbias[1] = get_bits1(&s->gb) && !s->s.h.errorres;
+ s->s.h.refidx[2] = get_bits(&s->gb, 3);
+ s->s.h.signbias[2] = get_bits1(&s->gb) && !s->s.h.errorres;
+ if (!s->s.refs[s->s.h.refidx[0]].f->buf[0] ||
+ !s->s.refs[s->s.h.refidx[1]].f->buf[0] ||
+ !s->s.refs[s->s.h.refidx[2]].f->buf[0]) {
+ av_log(ctx, AV_LOG_ERROR, "Not all references are available\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (get_bits1(&s->gb)) {
+ w = s->s.refs[s->s.h.refidx[0]].f->width;
+ h = s->s.refs[s->s.h.refidx[0]].f->height;
+ } else if (get_bits1(&s->gb)) {
+ w = s->s.refs[s->s.h.refidx[1]].f->width;
+ h = s->s.refs[s->s.h.refidx[1]].f->height;
+ } else if (get_bits1(&s->gb)) {
+ w = s->s.refs[s->s.h.refidx[2]].f->width;
+ h = s->s.refs[s->s.h.refidx[2]].f->height;
+ } else {
+ w = get_bits(&s->gb, 16) + 1;
+ h = get_bits(&s->gb, 16) + 1;
+ }
+ // Note that in this code, "CUR_FRAME" is actually before we
+ // have formally allocated a frame, and thus actually represents
+ // the _last_ frame
+ s->s.h.use_last_frame_mvs &= s->s.frames[CUR_FRAME].tf.f->width == w &&
+ s->s.frames[CUR_FRAME].tf.f->height == h;
+ if (get_bits1(&s->gb)) // display size
+ skip_bits(&s->gb, 32);
+ s->s.h.highprecisionmvs = get_bits1(&s->gb);
+ s->s.h.filtermode = get_bits1(&s->gb) ? FILTER_SWITCHABLE :
+ get_bits(&s->gb, 2);
+ s->s.h.allowcompinter = s->s.h.signbias[0] != s->s.h.signbias[1] ||
+ s->s.h.signbias[0] != s->s.h.signbias[2];
+ if (s->s.h.allowcompinter) {
+ if (s->s.h.signbias[0] == s->s.h.signbias[1]) {
+ s->s.h.fixcompref = 2;
+ s->s.h.varcompref[0] = 0;
+ s->s.h.varcompref[1] = 1;
+ } else if (s->s.h.signbias[0] == s->s.h.signbias[2]) {
+ s->s.h.fixcompref = 1;
+ s->s.h.varcompref[0] = 0;
+ s->s.h.varcompref[1] = 2;
+ } else {
+ s->s.h.fixcompref = 0;
+ s->s.h.varcompref[0] = 1;
+ s->s.h.varcompref[1] = 2;
+ }
+ }
+ }
+ }
+ s->s.h.refreshctx = s->s.h.errorres ? 0 : get_bits1(&s->gb);
+ s->s.h.parallelmode = s->s.h.errorres ? 1 : get_bits1(&s->gb);
+ s->s.h.framectxid = c = get_bits(&s->gb, 2);
+ if (s->s.h.keyframe || s->s.h.intraonly)
+ s->s.h.framectxid = 0; // BUG: libvpx ignores this field in keyframes
+
+ /* loopfilter header data */
+ if (s->s.h.keyframe || s->s.h.errorres || s->s.h.intraonly) {
+ // reset loopfilter defaults
+ s->s.h.lf_delta.ref[0] = 1;
+ s->s.h.lf_delta.ref[1] = 0;
+ s->s.h.lf_delta.ref[2] = -1;
+ s->s.h.lf_delta.ref[3] = -1;
+ s->s.h.lf_delta.mode[0] = 0;
+ s->s.h.lf_delta.mode[1] = 0;
+ memset(s->s.h.segmentation.feat, 0, sizeof(s->s.h.segmentation.feat));
+ }
+ s->s.h.filter.level = get_bits(&s->gb, 6);
+ sharp = get_bits(&s->gb, 3);
+ // if sharpness changed, reinit lim/mblim LUTs. if it didn't change, keep
+ // the old cache values since they are still valid
+ if (s->s.h.filter.sharpness != sharp)
+ memset(s->filter_lut.lim_lut, 0, sizeof(s->filter_lut.lim_lut));
+ s->s.h.filter.sharpness = sharp;
+ if ((s->s.h.lf_delta.enabled = get_bits1(&s->gb))) {
+ if ((s->s.h.lf_delta.updated = get_bits1(&s->gb))) {
+ for (i = 0; i < 4; i++)
+ if (get_bits1(&s->gb))
+ s->s.h.lf_delta.ref[i] = get_sbits_inv(&s->gb, 6);
+ for (i = 0; i < 2; i++)
+ if (get_bits1(&s->gb))
+ s->s.h.lf_delta.mode[i] = get_sbits_inv(&s->gb, 6);
+ }
+ }
+
+ /* quantization header data */
+ s->s.h.yac_qi = get_bits(&s->gb, 8);
+ s->s.h.ydc_qdelta = get_bits1(&s->gb) ? get_sbits_inv(&s->gb, 4) : 0;
+ s->s.h.uvdc_qdelta = get_bits1(&s->gb) ? get_sbits_inv(&s->gb, 4) : 0;
+ s->s.h.uvac_qdelta = get_bits1(&s->gb) ? get_sbits_inv(&s->gb, 4) : 0;
+ s->s.h.lossless = s->s.h.yac_qi == 0 && s->s.h.ydc_qdelta == 0 &&
+ s->s.h.uvdc_qdelta == 0 && s->s.h.uvac_qdelta == 0;
+ if (s->s.h.lossless)
+ ctx->properties |= FF_CODEC_PROPERTY_LOSSLESS;
+
+ /* segmentation header info */
+ if ((s->s.h.segmentation.enabled = get_bits1(&s->gb))) {
+ if ((s->s.h.segmentation.update_map = get_bits1(&s->gb))) {
+ for (i = 0; i < 7; i++)
+ s->s.h.segmentation.prob[i] = get_bits1(&s->gb) ?
+ get_bits(&s->gb, 8) : 255;
+ if ((s->s.h.segmentation.temporal = get_bits1(&s->gb))) {
+ for (i = 0; i < 3; i++)
+ s->s.h.segmentation.pred_prob[i] = get_bits1(&s->gb) ?
+ get_bits(&s->gb, 8) : 255;
+ }
+ }
+
+ if (get_bits1(&s->gb)) {
+ s->s.h.segmentation.absolute_vals = get_bits1(&s->gb);
+ for (i = 0; i < 8; i++) {
+ if ((s->s.h.segmentation.feat[i].q_enabled = get_bits1(&s->gb)))
+ s->s.h.segmentation.feat[i].q_val = get_sbits_inv(&s->gb, 8);
+ if ((s->s.h.segmentation.feat[i].lf_enabled = get_bits1(&s->gb)))
+ s->s.h.segmentation.feat[i].lf_val = get_sbits_inv(&s->gb, 6);
+ if ((s->s.h.segmentation.feat[i].ref_enabled = get_bits1(&s->gb)))
+ s->s.h.segmentation.feat[i].ref_val = get_bits(&s->gb, 2);
+ s->s.h.segmentation.feat[i].skip_enabled = get_bits1(&s->gb);
+ }
+ }
+ }
+
+ // set qmul[] based on Y/UV, AC/DC and segmentation Q idx deltas
+ for (i = 0; i < (s->s.h.segmentation.enabled ? 8 : 1); i++) {
+ int qyac, qydc, quvac, quvdc, lflvl, sh;
+
+ if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[i].q_enabled) {
+ if (s->s.h.segmentation.absolute_vals)
+ qyac = av_clip_uintp2(s->s.h.segmentation.feat[i].q_val, 8);
+ else
+ qyac = av_clip_uintp2(s->s.h.yac_qi + s->s.h.segmentation.feat[i].q_val, 8);
+ } else {
+ qyac = s->s.h.yac_qi;
+ }
+ qydc = av_clip_uintp2(qyac + s->s.h.ydc_qdelta, 8);
+ quvdc = av_clip_uintp2(qyac + s->s.h.uvdc_qdelta, 8);
+ quvac = av_clip_uintp2(qyac + s->s.h.uvac_qdelta, 8);
+ qyac = av_clip_uintp2(qyac, 8);
+
+ s->s.h.segmentation.feat[i].qmul[0][0] = vp9_dc_qlookup[s->bpp_index][qydc];
+ s->s.h.segmentation.feat[i].qmul[0][1] = vp9_ac_qlookup[s->bpp_index][qyac];
+ s->s.h.segmentation.feat[i].qmul[1][0] = vp9_dc_qlookup[s->bpp_index][quvdc];
+ s->s.h.segmentation.feat[i].qmul[1][1] = vp9_ac_qlookup[s->bpp_index][quvac];
+
+ sh = s->s.h.filter.level >= 32;
+ if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[i].lf_enabled) {
+ if (s->s.h.segmentation.absolute_vals)
+ lflvl = av_clip_uintp2(s->s.h.segmentation.feat[i].lf_val, 6);
+ else
+ lflvl = av_clip_uintp2(s->s.h.filter.level + s->s.h.segmentation.feat[i].lf_val, 6);
+ } else {
+ lflvl = s->s.h.filter.level;
+ }
+ if (s->s.h.lf_delta.enabled) {
+ s->s.h.segmentation.feat[i].lflvl[0][0] =
+ s->s.h.segmentation.feat[i].lflvl[0][1] =
+ av_clip_uintp2(lflvl + (s->s.h.lf_delta.ref[0] * (1 << sh)), 6);
+ for (j = 1; j < 4; j++) {
+ s->s.h.segmentation.feat[i].lflvl[j][0] =
+ av_clip_uintp2(lflvl + ((s->s.h.lf_delta.ref[j] +
+ s->s.h.lf_delta.mode[0]) * (1 << sh)), 6);
+ s->s.h.segmentation.feat[i].lflvl[j][1] =
+ av_clip_uintp2(lflvl + ((s->s.h.lf_delta.ref[j] +
+ s->s.h.lf_delta.mode[1]) * (1 << sh)), 6);
+ }
+ } else {
+ memset(s->s.h.segmentation.feat[i].lflvl, lflvl,
+ sizeof(s->s.h.segmentation.feat[i].lflvl));
+ }
+ }
+
+ /* tiling info */
+ if ((res = update_size(ctx, w, h)) < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to initialize decoder for %dx%d @ %d\n",
+ w, h, s->pix_fmt);
+ return res;
+ }
+ for (s->s.h.tiling.log2_tile_cols = 0;
+ s->sb_cols > (64 << s->s.h.tiling.log2_tile_cols);
+ s->s.h.tiling.log2_tile_cols++) ;
+ for (max = 0; (s->sb_cols >> max) >= 4; max++) ;
+ max = FFMAX(0, max - 1);
+ while (max > s->s.h.tiling.log2_tile_cols) {
+ if (get_bits1(&s->gb))
+ s->s.h.tiling.log2_tile_cols++;
+ else
+ break;
+ }
+ s->s.h.tiling.log2_tile_rows = decode012(&s->gb);
+ s->s.h.tiling.tile_rows = 1 << s->s.h.tiling.log2_tile_rows;
+ if (s->s.h.tiling.tile_cols != (1 << s->s.h.tiling.log2_tile_cols)) {
+ s->s.h.tiling.tile_cols = 1 << s->s.h.tiling.log2_tile_cols;
+ s->c_b = av_fast_realloc(s->c_b, &s->c_b_size,
+ sizeof(VP56RangeCoder) * s->s.h.tiling.tile_cols);
+ if (!s->c_b) {
+ av_log(ctx, AV_LOG_ERROR, "Ran out of memory during range coder init\n");
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ /* check reference frames */
+ if (!s->s.h.keyframe && !s->s.h.intraonly) {
+ for (i = 0; i < 3; i++) {
+ AVFrame *ref = s->s.refs[s->s.h.refidx[i]].f;
+ int refw = ref->width, refh = ref->height;
+
+ if (ref->format != ctx->pix_fmt) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Ref pixfmt (%s) did not match current frame (%s)",
+ av_get_pix_fmt_name(ref->format),
+ av_get_pix_fmt_name(ctx->pix_fmt));
+ return AVERROR_INVALIDDATA;
+ } else if (refw == w && refh == h) {
+ s->mvscale[i][0] = s->mvscale[i][1] = 0;
+ } else {
+ if (w * 2 < refw || h * 2 < refh || w > 16 * refw || h > 16 * refh) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Invalid ref frame dimensions %dx%d for frame size %dx%d\n",
+ refw, refh, w, h);
+ return AVERROR_INVALIDDATA;
+ }
+ s->mvscale[i][0] = (refw << 14) / w;
+ s->mvscale[i][1] = (refh << 14) / h;
+ s->mvstep[i][0] = 16 * s->mvscale[i][0] >> 14;
+ s->mvstep[i][1] = 16 * s->mvscale[i][1] >> 14;
+ }
+ }
+ }
+
+ if (s->s.h.keyframe || s->s.h.errorres || (s->s.h.intraonly && s->s.h.resetctx == 3)) {
+ s->prob_ctx[0].p = s->prob_ctx[1].p = s->prob_ctx[2].p =
+ s->prob_ctx[3].p = vp9_default_probs;
+ memcpy(s->prob_ctx[0].coef, vp9_default_coef_probs,
+ sizeof(vp9_default_coef_probs));
+ memcpy(s->prob_ctx[1].coef, vp9_default_coef_probs,
+ sizeof(vp9_default_coef_probs));
+ memcpy(s->prob_ctx[2].coef, vp9_default_coef_probs,
+ sizeof(vp9_default_coef_probs));
+ memcpy(s->prob_ctx[3].coef, vp9_default_coef_probs,
+ sizeof(vp9_default_coef_probs));
+ } else if (s->s.h.intraonly && s->s.h.resetctx == 2) {
+ s->prob_ctx[c].p = vp9_default_probs;
+ memcpy(s->prob_ctx[c].coef, vp9_default_coef_probs,
+ sizeof(vp9_default_coef_probs));
+ }
+
+ // next 16 bits is size of the rest of the header (arith-coded)
+ s->s.h.compressed_header_size = size2 = get_bits(&s->gb, 16);
+ s->s.h.uncompressed_header_size = (get_bits_count(&s->gb) + 7) / 8;
+
+ data2 = align_get_bits(&s->gb);
+ if (size2 > size - (data2 - data)) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid compressed header size\n");
+ return AVERROR_INVALIDDATA;
+ }
+ ff_vp56_init_range_decoder(&s->c, data2, size2);
+ if (vp56_rac_get_prob_branchy(&s->c, 128)) { // marker bit
+ av_log(ctx, AV_LOG_ERROR, "Marker bit was set\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (s->s.h.keyframe || s->s.h.intraonly) {
+ memset(s->counts.coef, 0, sizeof(s->counts.coef));
+ memset(s->counts.eob, 0, sizeof(s->counts.eob));
+ } else {
+ memset(&s->counts, 0, sizeof(s->counts));
+ }
+ // FIXME is it faster to not copy here, but do it down in the fw updates
+ // as explicit copies if the fw update is missing (and skip the copy upon
+ // fw update)?
+ s->prob.p = s->prob_ctx[c].p;
+
+ // txfm updates
+ if (s->s.h.lossless) {
+ s->s.h.txfmmode = TX_4X4;
+ } else {
+ s->s.h.txfmmode = vp8_rac_get_uint(&s->c, 2);
+ if (s->s.h.txfmmode == 3)
+ s->s.h.txfmmode += vp8_rac_get(&s->c);
+
+ if (s->s.h.txfmmode == TX_SWITCHABLE) {
+ for (i = 0; i < 2; i++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.tx8p[i] = update_prob(&s->c, s->prob.p.tx8p[i]);
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 2; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.tx16p[i][j] =
+ update_prob(&s->c, s->prob.p.tx16p[i][j]);
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 3; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.tx32p[i][j] =
+ update_prob(&s->c, s->prob.p.tx32p[i][j]);
+ }
+ }
+
+ // coef updates
+ for (i = 0; i < 4; i++) {
+ uint8_t (*ref)[2][6][6][3] = s->prob_ctx[c].coef[i];
+ if (vp8_rac_get(&s->c)) {
+ for (j = 0; j < 2; j++)
+ for (k = 0; k < 2; k++)
+ for (l = 0; l < 6; l++)
+ for (m = 0; m < 6; m++) {
+ uint8_t *p = s->prob.coef[i][j][k][l][m];
+ uint8_t *r = ref[j][k][l][m];
+ if (m >= 3 && l == 0) // dc only has 3 pt
+ break;
+ for (n = 0; n < 3; n++) {
+ if (vp56_rac_get_prob_branchy(&s->c, 252)) {
+ p[n] = update_prob(&s->c, r[n]);
+ } else {
+ p[n] = r[n];
+ }
+ }
+ p[3] = 0;
+ }
+ } else {
+ for (j = 0; j < 2; j++)
+ for (k = 0; k < 2; k++)
+ for (l = 0; l < 6; l++)
+ for (m = 0; m < 6; m++) {
+ uint8_t *p = s->prob.coef[i][j][k][l][m];
+ uint8_t *r = ref[j][k][l][m];
+ if (m > 3 && l == 0) // dc only has 3 pt
+ break;
+ memcpy(p, r, 3);
+ p[3] = 0;
+ }
+ }
+ if (s->s.h.txfmmode == i)
+ break;
+ }
+
+ // mode updates
+ for (i = 0; i < 3; i++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.skip[i] = update_prob(&s->c, s->prob.p.skip[i]);
+ if (!s->s.h.keyframe && !s->s.h.intraonly) {
+ for (i = 0; i < 7; i++)
+ for (j = 0; j < 3; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_mode[i][j] =
+ update_prob(&s->c, s->prob.p.mv_mode[i][j]);
+
+ if (s->s.h.filtermode == FILTER_SWITCHABLE)
+ for (i = 0; i < 4; i++)
+ for (j = 0; j < 2; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.filter[i][j] =
+ update_prob(&s->c, s->prob.p.filter[i][j]);
+
+ for (i = 0; i < 4; i++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.intra[i] = update_prob(&s->c, s->prob.p.intra[i]);
+
+ if (s->s.h.allowcompinter) {
+ s->s.h.comppredmode = vp8_rac_get(&s->c);
+ if (s->s.h.comppredmode)
+ s->s.h.comppredmode += vp8_rac_get(&s->c);
+ if (s->s.h.comppredmode == PRED_SWITCHABLE)
+ for (i = 0; i < 5; i++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.comp[i] =
+ update_prob(&s->c, s->prob.p.comp[i]);
+ } else {
+ s->s.h.comppredmode = PRED_SINGLEREF;
+ }
+
+ if (s->s.h.comppredmode != PRED_COMPREF) {
+ for (i = 0; i < 5; i++) {
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.single_ref[i][0] =
+ update_prob(&s->c, s->prob.p.single_ref[i][0]);
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.single_ref[i][1] =
+ update_prob(&s->c, s->prob.p.single_ref[i][1]);
+ }
+ }
+
+ if (s->s.h.comppredmode != PRED_SINGLEREF) {
+ for (i = 0; i < 5; i++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.comp_ref[i] =
+ update_prob(&s->c, s->prob.p.comp_ref[i]);
+ }
+
+ for (i = 0; i < 4; i++)
+ for (j = 0; j < 9; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.y_mode[i][j] =
+ update_prob(&s->c, s->prob.p.y_mode[i][j]);
+
+ for (i = 0; i < 4; i++)
+ for (j = 0; j < 4; j++)
+ for (k = 0; k < 3; k++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.partition[3 - i][j][k] =
+ update_prob(&s->c, s->prob.p.partition[3 - i][j][k]);
+
+ // mv fields don't use the update_prob subexp model for some reason
+ for (i = 0; i < 3; i++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_joint[i] = (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+
+ for (i = 0; i < 2; i++) {
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].sign = (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+
+ for (j = 0; j < 10; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].classes[j] =
+ (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].class0 = (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+
+ for (j = 0; j < 10; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].bits[j] =
+ (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+ }
+
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 2; j++)
+ for (k = 0; k < 3; k++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].class0_fp[j][k] =
+ (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+
+ for (j = 0; j < 3; j++)
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].fp[j] =
+ (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+ }
+
+ if (s->s.h.highprecisionmvs) {
+ for (i = 0; i < 2; i++) {
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].class0_hp =
+ (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+
+ if (vp56_rac_get_prob_branchy(&s->c, 252))
+ s->prob.p.mv_comp[i].hp =
+ (vp8_rac_get_uint(&s->c, 7) << 1) | 1;
+ }
+ }
+ }
+
+ return (data2 - data) + size2;
+}
+
+static av_always_inline void clamp_mv(VP56mv *dst, const VP56mv *src,
+ VP9Context *s)
+{
+ dst->x = av_clip(src->x, s->min_mv.x, s->max_mv.x);
+ dst->y = av_clip(src->y, s->min_mv.y, s->max_mv.y);
+}
+
+static void find_ref_mvs(VP9Context *s,
+ VP56mv *pmv, int ref, int z, int idx, int sb)
+{
+ static const int8_t mv_ref_blk_off[N_BS_SIZES][8][2] = {
+ [BS_64x64] = {{ 3, -1 }, { -1, 3 }, { 4, -1 }, { -1, 4 },
+ { -1, -1 }, { 0, -1 }, { -1, 0 }, { 6, -1 }},
+ [BS_64x32] = {{ 0, -1 }, { -1, 0 }, { 4, -1 }, { -1, 2 },
+ { -1, -1 }, { 0, -3 }, { -3, 0 }, { 2, -1 }},
+ [BS_32x64] = {{ -1, 0 }, { 0, -1 }, { -1, 4 }, { 2, -1 },
+ { -1, -1 }, { -3, 0 }, { 0, -3 }, { -1, 2 }},
+ [BS_32x32] = {{ 1, -1 }, { -1, 1 }, { 2, -1 }, { -1, 2 },
+ { -1, -1 }, { 0, -3 }, { -3, 0 }, { -3, -3 }},
+ [BS_32x16] = {{ 0, -1 }, { -1, 0 }, { 2, -1 }, { -1, -1 },
+ { -1, 1 }, { 0, -3 }, { -3, 0 }, { -3, -3 }},
+ [BS_16x32] = {{ -1, 0 }, { 0, -1 }, { -1, 2 }, { -1, -1 },
+ { 1, -1 }, { -3, 0 }, { 0, -3 }, { -3, -3 }},
+ [BS_16x16] = {{ 0, -1 }, { -1, 0 }, { 1, -1 }, { -1, 1 },
+ { -1, -1 }, { 0, -3 }, { -3, 0 }, { -3, -3 }},
+ [BS_16x8] = {{ 0, -1 }, { -1, 0 }, { 1, -1 }, { -1, -1 },
+ { 0, -2 }, { -2, 0 }, { -2, -1 }, { -1, -2 }},
+ [BS_8x16] = {{ -1, 0 }, { 0, -1 }, { -1, 1 }, { -1, -1 },
+ { -2, 0 }, { 0, -2 }, { -1, -2 }, { -2, -1 }},
+ [BS_8x8] = {{ 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 },
+ { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 }},
+ [BS_8x4] = {{ 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 },
+ { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 }},
+ [BS_4x8] = {{ 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 },
+ { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 }},
+ [BS_4x4] = {{ 0, -1 }, { -1, 0 }, { -1, -1 }, { 0, -2 },
+ { -2, 0 }, { -1, -2 }, { -2, -1 }, { -2, -2 }},
+ };
+ VP9Block *b = s->b;
+ int row = s->row, col = s->col, row7 = s->row7;
+ const int8_t (*p)[2] = mv_ref_blk_off[b->bs];
+#define INVALID_MV 0x80008000U
+ uint32_t mem = INVALID_MV, mem_sub8x8 = INVALID_MV;
+ int i;
+
+#define RETURN_DIRECT_MV(mv) \
+ do { \
+ uint32_t m = AV_RN32A(&mv); \
+ if (!idx) { \
+ AV_WN32A(pmv, m); \
+ return; \
+ } else if (mem == INVALID_MV) { \
+ mem = m; \
+ } else if (m != mem) { \
+ AV_WN32A(pmv, m); \
+ return; \
+ } \
+ } while (0)
+
+ if (sb >= 0) {
+ if (sb == 2 || sb == 1) {
+ RETURN_DIRECT_MV(b->mv[0][z]);
+ } else if (sb == 3) {
+ RETURN_DIRECT_MV(b->mv[2][z]);
+ RETURN_DIRECT_MV(b->mv[1][z]);
+ RETURN_DIRECT_MV(b->mv[0][z]);
+ }
+
+#define RETURN_MV(mv) \
+ do { \
+ if (sb > 0) { \
+ VP56mv tmp; \
+ uint32_t m; \
+ av_assert2(idx == 1); \
+ av_assert2(mem != INVALID_MV); \
+ if (mem_sub8x8 == INVALID_MV) { \
+ clamp_mv(&tmp, &mv, s); \
+ m = AV_RN32A(&tmp); \
+ if (m != mem) { \
+ AV_WN32A(pmv, m); \
+ return; \
+ } \
+ mem_sub8x8 = AV_RN32A(&mv); \
+ } else if (mem_sub8x8 != AV_RN32A(&mv)) { \
+ clamp_mv(&tmp, &mv, s); \
+ m = AV_RN32A(&tmp); \
+ if (m != mem) { \
+ AV_WN32A(pmv, m); \
+ } else { \
+ /* BUG I'm pretty sure this isn't the intention */ \
+ AV_WN32A(pmv, 0); \
+ } \
+ return; \
+ } \
+ } else { \
+ uint32_t m = AV_RN32A(&mv); \
+ if (!idx) { \
+ clamp_mv(pmv, &mv, s); \
+ return; \
+ } else if (mem == INVALID_MV) { \
+ mem = m; \
+ } else if (m != mem) { \
+ clamp_mv(pmv, &mv, s); \
+ return; \
+ } \
+ } \
+ } while (0)
+
+ if (row > 0) {
+ struct VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[(row - 1) * s->sb_cols * 8 + col];
+ if (mv->ref[0] == ref) {
+ RETURN_MV(s->above_mv_ctx[2 * col + (sb & 1)][0]);
+ } else if (mv->ref[1] == ref) {
+ RETURN_MV(s->above_mv_ctx[2 * col + (sb & 1)][1]);
+ }
+ }
+ if (col > s->tile_col_start) {
+ struct VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[row * s->sb_cols * 8 + col - 1];
+ if (mv->ref[0] == ref) {
+ RETURN_MV(s->left_mv_ctx[2 * row7 + (sb >> 1)][0]);
+ } else if (mv->ref[1] == ref) {
+ RETURN_MV(s->left_mv_ctx[2 * row7 + (sb >> 1)][1]);
+ }
+ }
+ i = 2;
+ } else {
+ i = 0;
+ }
+
+ // previously coded MVs in this neighbourhood, using same reference frame
+ for (; i < 8; i++) {
+ int c = p[i][0] + col, r = p[i][1] + row;
+
+ if (c >= s->tile_col_start && c < s->cols && r >= 0 && r < s->rows) {
+ struct VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[r * s->sb_cols * 8 + c];
+
+ if (mv->ref[0] == ref) {
+ RETURN_MV(mv->mv[0]);
+ } else if (mv->ref[1] == ref) {
+ RETURN_MV(mv->mv[1]);
+ }
+ }
+ }
+
+ // MV at this position in previous frame, using same reference frame
+ if (s->s.h.use_last_frame_mvs) {
+ struct VP9mvrefPair *mv = &s->s.frames[REF_FRAME_MVPAIR].mv[row * s->sb_cols * 8 + col];
+
+ if (!s->s.frames[REF_FRAME_MVPAIR].uses_2pass)
+ ff_thread_await_progress(&s->s.frames[REF_FRAME_MVPAIR].tf, row >> 3, 0);
+ if (mv->ref[0] == ref) {
+ RETURN_MV(mv->mv[0]);
+ } else if (mv->ref[1] == ref) {
+ RETURN_MV(mv->mv[1]);
+ }
+ }
+
+#define RETURN_SCALE_MV(mv, scale) \
+ do { \
+ if (scale) { \
+ VP56mv mv_temp = { -mv.x, -mv.y }; \
+ RETURN_MV(mv_temp); \
+ } else { \
+ RETURN_MV(mv); \
+ } \
+ } while (0)
+
+ // previously coded MVs in this neighbourhood, using different reference frame
+ for (i = 0; i < 8; i++) {
+ int c = p[i][0] + col, r = p[i][1] + row;
+
+ if (c >= s->tile_col_start && c < s->cols && r >= 0 && r < s->rows) {
+ struct VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[r * s->sb_cols * 8 + c];
+
+ if (mv->ref[0] != ref && mv->ref[0] >= 0) {
+ RETURN_SCALE_MV(mv->mv[0], s->s.h.signbias[mv->ref[0]] != s->s.h.signbias[ref]);
+ }
+ if (mv->ref[1] != ref && mv->ref[1] >= 0 &&
+ // BUG - libvpx has this condition regardless of whether
+ // we used the first ref MV and pre-scaling
+ AV_RN32A(&mv->mv[0]) != AV_RN32A(&mv->mv[1])) {
+ RETURN_SCALE_MV(mv->mv[1], s->s.h.signbias[mv->ref[1]] != s->s.h.signbias[ref]);
+ }
+ }
+ }
+
+ // MV at this position in previous frame, using different reference frame
+ if (s->s.h.use_last_frame_mvs) {
+ struct VP9mvrefPair *mv = &s->s.frames[REF_FRAME_MVPAIR].mv[row * s->sb_cols * 8 + col];
+
+ // no need to await_progress, because we already did that above
+ if (mv->ref[0] != ref && mv->ref[0] >= 0) {
+ RETURN_SCALE_MV(mv->mv[0], s->s.h.signbias[mv->ref[0]] != s->s.h.signbias[ref]);
+ }
+ if (mv->ref[1] != ref && mv->ref[1] >= 0 &&
+ // BUG - libvpx has this condition regardless of whether
+ // we used the first ref MV and pre-scaling
+ AV_RN32A(&mv->mv[0]) != AV_RN32A(&mv->mv[1])) {
+ RETURN_SCALE_MV(mv->mv[1], s->s.h.signbias[mv->ref[1]] != s->s.h.signbias[ref]);
+ }
+ }
+
+ AV_ZERO32(pmv);
+ clamp_mv(pmv, pmv, s);
+#undef INVALID_MV
+#undef RETURN_MV
+#undef RETURN_SCALE_MV
+}
+
+static av_always_inline int read_mv_component(VP9Context *s, int idx, int hp)
+{
+ int bit, sign = vp56_rac_get_prob(&s->c, s->prob.p.mv_comp[idx].sign);
+ int n, c = vp8_rac_get_tree(&s->c, vp9_mv_class_tree,
+ s->prob.p.mv_comp[idx].classes);
+
+ s->counts.mv_comp[idx].sign[sign]++;
+ s->counts.mv_comp[idx].classes[c]++;
+ if (c) {
+ int m;
+
+ for (n = 0, m = 0; m < c; m++) {
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.mv_comp[idx].bits[m]);
+ n |= bit << m;
+ s->counts.mv_comp[idx].bits[m][bit]++;
+ }
+ n <<= 3;
+ bit = vp8_rac_get_tree(&s->c, vp9_mv_fp_tree, s->prob.p.mv_comp[idx].fp);
+ n |= bit << 1;
+ s->counts.mv_comp[idx].fp[bit]++;
+ if (hp) {
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.mv_comp[idx].hp);
+ s->counts.mv_comp[idx].hp[bit]++;
+ n |= bit;
+ } else {
+ n |= 1;
+ // bug in libvpx - we count for bw entropy purposes even if the
+ // bit wasn't coded
+ s->counts.mv_comp[idx].hp[1]++;
+ }
+ n += 8 << c;
+ } else {
+ n = vp56_rac_get_prob(&s->c, s->prob.p.mv_comp[idx].class0);
+ s->counts.mv_comp[idx].class0[n]++;
+ bit = vp8_rac_get_tree(&s->c, vp9_mv_fp_tree,
+ s->prob.p.mv_comp[idx].class0_fp[n]);
+ s->counts.mv_comp[idx].class0_fp[n][bit]++;
+ n = (n << 3) | (bit << 1);
+ if (hp) {
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.mv_comp[idx].class0_hp);
+ s->counts.mv_comp[idx].class0_hp[bit]++;
+ n |= bit;
+ } else {
+ n |= 1;
+ // bug in libvpx - we count for bw entropy purposes even if the
+ // bit wasn't coded
+ s->counts.mv_comp[idx].class0_hp[1]++;
+ }
+ }
+
+ return sign ? -(n + 1) : (n + 1);
+}
+
+static void fill_mv(VP9Context *s,
+ VP56mv *mv, int mode, int sb)
+{
+ VP9Block *b = s->b;
+
+ if (mode == ZEROMV) {
+ AV_ZERO64(mv);
+ } else {
+ int hp;
+
+ // FIXME cache this value and reuse for other subblocks
+ find_ref_mvs(s, &mv[0], b->ref[0], 0, mode == NEARMV,
+ mode == NEWMV ? -1 : sb);
+ // FIXME maybe move this code into find_ref_mvs()
+ if ((mode == NEWMV || sb == -1) &&
+ !(hp = s->s.h.highprecisionmvs && abs(mv[0].x) < 64 && abs(mv[0].y) < 64)) {
+ if (mv[0].y & 1) {
+ if (mv[0].y < 0)
+ mv[0].y++;
+ else
+ mv[0].y--;
+ }
+ if (mv[0].x & 1) {
+ if (mv[0].x < 0)
+ mv[0].x++;
+ else
+ mv[0].x--;
+ }
+ }
+ if (mode == NEWMV) {
+ enum MVJoint j = vp8_rac_get_tree(&s->c, vp9_mv_joint_tree,
+ s->prob.p.mv_joint);
+
+ s->counts.mv_joint[j]++;
+ if (j >= MV_JOINT_V)
+ mv[0].y += read_mv_component(s, 0, hp);
+ if (j & 1)
+ mv[0].x += read_mv_component(s, 1, hp);
+ }
+
+ if (b->comp) {
+ // FIXME cache this value and reuse for other subblocks
+ find_ref_mvs(s, &mv[1], b->ref[1], 1, mode == NEARMV,
+ mode == NEWMV ? -1 : sb);
+ if ((mode == NEWMV || sb == -1) &&
+ !(hp = s->s.h.highprecisionmvs && abs(mv[1].x) < 64 && abs(mv[1].y) < 64)) {
+ if (mv[1].y & 1) {
+ if (mv[1].y < 0)
+ mv[1].y++;
+ else
+ mv[1].y--;
+ }
+ if (mv[1].x & 1) {
+ if (mv[1].x < 0)
+ mv[1].x++;
+ else
+ mv[1].x--;
+ }
+ }
+ if (mode == NEWMV) {
+ enum MVJoint j = vp8_rac_get_tree(&s->c, vp9_mv_joint_tree,
+ s->prob.p.mv_joint);
+
+ s->counts.mv_joint[j]++;
+ if (j >= MV_JOINT_V)
+ mv[1].y += read_mv_component(s, 0, hp);
+ if (j & 1)
+ mv[1].x += read_mv_component(s, 1, hp);
+ }
+ }
+ }
+}
+
+static av_always_inline void setctx_2d(uint8_t *ptr, int w, int h,
+ ptrdiff_t stride, int v)
+{
+ switch (w) {
+ case 1:
+ do {
+ *ptr = v;
+ ptr += stride;
+ } while (--h);
+ break;
+ case 2: {
+ int v16 = v * 0x0101;
+ do {
+ AV_WN16A(ptr, v16);
+ ptr += stride;
+ } while (--h);
+ break;
+ }
+ case 4: {
+ uint32_t v32 = v * 0x01010101;
+ do {
+ AV_WN32A(ptr, v32);
+ ptr += stride;
+ } while (--h);
+ break;
+ }
+ case 8: {
+#if HAVE_FAST_64BIT
+ uint64_t v64 = v * 0x0101010101010101ULL;
+ do {
+ AV_WN64A(ptr, v64);
+ ptr += stride;
+ } while (--h);
+#else
+ uint32_t v32 = v * 0x01010101;
+ do {
+ AV_WN32A(ptr, v32);
+ AV_WN32A(ptr + 4, v32);
+ ptr += stride;
+ } while (--h);
+#endif
+ break;
+ }
+ }
+}
+
+static void decode_mode(AVCodecContext *ctx)
+{
+ static const uint8_t left_ctx[N_BS_SIZES] = {
+ 0x0, 0x8, 0x0, 0x8, 0xc, 0x8, 0xc, 0xe, 0xc, 0xe, 0xf, 0xe, 0xf
+ };
+ static const uint8_t above_ctx[N_BS_SIZES] = {
+ 0x0, 0x0, 0x8, 0x8, 0x8, 0xc, 0xc, 0xc, 0xe, 0xe, 0xe, 0xf, 0xf
+ };
+ static const uint8_t max_tx_for_bl_bp[N_BS_SIZES] = {
+ TX_32X32, TX_32X32, TX_32X32, TX_32X32, TX_16X16, TX_16X16,
+ TX_16X16, TX_8X8, TX_8X8, TX_8X8, TX_4X4, TX_4X4, TX_4X4
+ };
+ VP9Context *s = ctx->priv_data;
+ VP9Block *b = s->b;
+ int row = s->row, col = s->col, row7 = s->row7;
+ enum TxfmMode max_tx = max_tx_for_bl_bp[b->bs];
+ int bw4 = bwh_tab[1][b->bs][0], w4 = FFMIN(s->cols - col, bw4);
+ int bh4 = bwh_tab[1][b->bs][1], h4 = FFMIN(s->rows - row, bh4), y;
+ int have_a = row > 0, have_l = col > s->tile_col_start;
+ int vref, filter_id;
+
+ if (!s->s.h.segmentation.enabled) {
+ b->seg_id = 0;
+ } else if (s->s.h.keyframe || s->s.h.intraonly) {
+ b->seg_id = !s->s.h.segmentation.update_map ? 0 :
+ vp8_rac_get_tree(&s->c, vp9_segmentation_tree, s->s.h.segmentation.prob);
+ } else if (!s->s.h.segmentation.update_map ||
+ (s->s.h.segmentation.temporal &&
+ vp56_rac_get_prob_branchy(&s->c,
+ s->s.h.segmentation.pred_prob[s->above_segpred_ctx[col] +
+ s->left_segpred_ctx[row7]]))) {
+ if (!s->s.h.errorres && s->s.frames[REF_FRAME_SEGMAP].segmentation_map) {
+ int pred = 8, x;
+ uint8_t *refsegmap = s->s.frames[REF_FRAME_SEGMAP].segmentation_map;
+
+ if (!s->s.frames[REF_FRAME_SEGMAP].uses_2pass)
+ ff_thread_await_progress(&s->s.frames[REF_FRAME_SEGMAP].tf, row >> 3, 0);
+ for (y = 0; y < h4; y++) {
+ int idx_base = (y + row) * 8 * s->sb_cols + col;
+ for (x = 0; x < w4; x++)
+ pred = FFMIN(pred, refsegmap[idx_base + x]);
+ }
+ av_assert1(pred < 8);
+ b->seg_id = pred;
+ } else {
+ b->seg_id = 0;
+ }
+
+ memset(&s->above_segpred_ctx[col], 1, w4);
+ memset(&s->left_segpred_ctx[row7], 1, h4);
+ } else {
+ b->seg_id = vp8_rac_get_tree(&s->c, vp9_segmentation_tree,
+ s->s.h.segmentation.prob);
+
+ memset(&s->above_segpred_ctx[col], 0, w4);
+ memset(&s->left_segpred_ctx[row7], 0, h4);
+ }
+ if (s->s.h.segmentation.enabled &&
+ (s->s.h.segmentation.update_map || s->s.h.keyframe || s->s.h.intraonly)) {
+ setctx_2d(&s->s.frames[CUR_FRAME].segmentation_map[row * 8 * s->sb_cols + col],
+ bw4, bh4, 8 * s->sb_cols, b->seg_id);
+ }
+
+ b->skip = s->s.h.segmentation.enabled &&
+ s->s.h.segmentation.feat[b->seg_id].skip_enabled;
+ if (!b->skip) {
+ int c = s->left_skip_ctx[row7] + s->above_skip_ctx[col];
+ b->skip = vp56_rac_get_prob(&s->c, s->prob.p.skip[c]);
+ s->counts.skip[c][b->skip]++;
+ }
+
+ if (s->s.h.keyframe || s->s.h.intraonly) {
+ b->intra = 1;
+ } else if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].ref_enabled) {
+ b->intra = !s->s.h.segmentation.feat[b->seg_id].ref_val;
+ } else {
+ int c, bit;
+
+ if (have_a && have_l) {
+ c = s->above_intra_ctx[col] + s->left_intra_ctx[row7];
+ c += (c == 2);
+ } else {
+ c = have_a ? 2 * s->above_intra_ctx[col] :
+ have_l ? 2 * s->left_intra_ctx[row7] : 0;
+ }
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.intra[c]);
+ s->counts.intra[c][bit]++;
+ b->intra = !bit;
+ }
+
+ if ((b->intra || !b->skip) && s->s.h.txfmmode == TX_SWITCHABLE) {
+ int c;
+ if (have_a) {
+ if (have_l) {
+ c = (s->above_skip_ctx[col] ? max_tx :
+ s->above_txfm_ctx[col]) +
+ (s->left_skip_ctx[row7] ? max_tx :
+ s->left_txfm_ctx[row7]) > max_tx;
+ } else {
+ c = s->above_skip_ctx[col] ? 1 :
+ (s->above_txfm_ctx[col] * 2 > max_tx);
+ }
+ } else if (have_l) {
+ c = s->left_skip_ctx[row7] ? 1 :
+ (s->left_txfm_ctx[row7] * 2 > max_tx);
+ } else {
+ c = 1;
+ }
+ switch (max_tx) {
+ case TX_32X32:
+ b->tx = vp56_rac_get_prob(&s->c, s->prob.p.tx32p[c][0]);
+ if (b->tx) {
+ b->tx += vp56_rac_get_prob(&s->c, s->prob.p.tx32p[c][1]);
+ if (b->tx == 2)
+ b->tx += vp56_rac_get_prob(&s->c, s->prob.p.tx32p[c][2]);
+ }
+ s->counts.tx32p[c][b->tx]++;
+ break;
+ case TX_16X16:
+ b->tx = vp56_rac_get_prob(&s->c, s->prob.p.tx16p[c][0]);
+ if (b->tx)
+ b->tx += vp56_rac_get_prob(&s->c, s->prob.p.tx16p[c][1]);
+ s->counts.tx16p[c][b->tx]++;
+ break;
+ case TX_8X8:
+ b->tx = vp56_rac_get_prob(&s->c, s->prob.p.tx8p[c]);
+ s->counts.tx8p[c][b->tx]++;
+ break;
+ case TX_4X4:
+ b->tx = TX_4X4;
+ break;
+ }
+ } else {
+ b->tx = FFMIN(max_tx, s->s.h.txfmmode);
+ }
+
+ if (s->s.h.keyframe || s->s.h.intraonly) {
+ uint8_t *a = &s->above_mode_ctx[col * 2];
+ uint8_t *l = &s->left_mode_ctx[(row7) << 1];
+
+ b->comp = 0;
+ if (b->bs > BS_8x8) {
+ // FIXME the memory storage intermediates here aren't really
+ // necessary, they're just there to make the code slightly
+ // simpler for now
+ b->mode[0] = a[0] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ vp9_default_kf_ymode_probs[a[0]][l[0]]);
+ if (b->bs != BS_8x4) {
+ b->mode[1] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ vp9_default_kf_ymode_probs[a[1]][b->mode[0]]);
+ l[0] = a[1] = b->mode[1];
+ } else {
+ l[0] = a[1] = b->mode[1] = b->mode[0];
+ }
+ if (b->bs != BS_4x8) {
+ b->mode[2] = a[0] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ vp9_default_kf_ymode_probs[a[0]][l[1]]);
+ if (b->bs != BS_8x4) {
+ b->mode[3] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ vp9_default_kf_ymode_probs[a[1]][b->mode[2]]);
+ l[1] = a[1] = b->mode[3];
+ } else {
+ l[1] = a[1] = b->mode[3] = b->mode[2];
+ }
+ } else {
+ b->mode[2] = b->mode[0];
+ l[1] = a[1] = b->mode[3] = b->mode[1];
+ }
+ } else {
+ b->mode[0] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ vp9_default_kf_ymode_probs[*a][*l]);
+ b->mode[3] = b->mode[2] = b->mode[1] = b->mode[0];
+ // FIXME this can probably be optimized
+ memset(a, b->mode[0], bwh_tab[0][b->bs][0]);
+ memset(l, b->mode[0], bwh_tab[0][b->bs][1]);
+ }
+ b->uvmode = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ vp9_default_kf_uvmode_probs[b->mode[3]]);
+ } else if (b->intra) {
+ b->comp = 0;
+ if (b->bs > BS_8x8) {
+ b->mode[0] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ s->prob.p.y_mode[0]);
+ s->counts.y_mode[0][b->mode[0]]++;
+ if (b->bs != BS_8x4) {
+ b->mode[1] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ s->prob.p.y_mode[0]);
+ s->counts.y_mode[0][b->mode[1]]++;
+ } else {
+ b->mode[1] = b->mode[0];
+ }
+ if (b->bs != BS_4x8) {
+ b->mode[2] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ s->prob.p.y_mode[0]);
+ s->counts.y_mode[0][b->mode[2]]++;
+ if (b->bs != BS_8x4) {
+ b->mode[3] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ s->prob.p.y_mode[0]);
+ s->counts.y_mode[0][b->mode[3]]++;
+ } else {
+ b->mode[3] = b->mode[2];
+ }
+ } else {
+ b->mode[2] = b->mode[0];
+ b->mode[3] = b->mode[1];
+ }
+ } else {
+ static const uint8_t size_group[10] = {
+ 3, 3, 3, 3, 2, 2, 2, 1, 1, 1
+ };
+ int sz = size_group[b->bs];
+
+ b->mode[0] = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ s->prob.p.y_mode[sz]);
+ b->mode[1] = b->mode[2] = b->mode[3] = b->mode[0];
+ s->counts.y_mode[sz][b->mode[3]]++;
+ }
+ b->uvmode = vp8_rac_get_tree(&s->c, vp9_intramode_tree,
+ s->prob.p.uv_mode[b->mode[3]]);
+ s->counts.uv_mode[b->mode[3]][b->uvmode]++;
+ } else {
+ static const uint8_t inter_mode_ctx_lut[14][14] = {
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
+ { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 3 },
+ { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 3 },
+ { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 0, 3 },
+ { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 4 },
+ };
+
+ if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].ref_enabled) {
+ av_assert2(s->s.h.segmentation.feat[b->seg_id].ref_val != 0);
+ b->comp = 0;
+ b->ref[0] = s->s.h.segmentation.feat[b->seg_id].ref_val - 1;
+ } else {
+ // read comp_pred flag
+ if (s->s.h.comppredmode != PRED_SWITCHABLE) {
+ b->comp = s->s.h.comppredmode == PRED_COMPREF;
+ } else {
+ int c;
+
+ // FIXME add intra as ref=0xff (or -1) to make these easier?
+ if (have_a) {
+ if (have_l) {
+ if (s->above_comp_ctx[col] && s->left_comp_ctx[row7]) {
+ c = 4;
+ } else if (s->above_comp_ctx[col]) {
+ c = 2 + (s->left_intra_ctx[row7] ||
+ s->left_ref_ctx[row7] == s->s.h.fixcompref);
+ } else if (s->left_comp_ctx[row7]) {
+ c = 2 + (s->above_intra_ctx[col] ||
+ s->above_ref_ctx[col] == s->s.h.fixcompref);
+ } else {
+ c = (!s->above_intra_ctx[col] &&
+ s->above_ref_ctx[col] == s->s.h.fixcompref) ^
+ (!s->left_intra_ctx[row7] &&
+ s->left_ref_ctx[row & 7] == s->s.h.fixcompref);
+ }
+ } else {
+ c = s->above_comp_ctx[col] ? 3 :
+ (!s->above_intra_ctx[col] && s->above_ref_ctx[col] == s->s.h.fixcompref);
+ }
+ } else if (have_l) {
+ c = s->left_comp_ctx[row7] ? 3 :
+ (!s->left_intra_ctx[row7] && s->left_ref_ctx[row7] == s->s.h.fixcompref);
+ } else {
+ c = 1;
+ }
+ b->comp = vp56_rac_get_prob(&s->c, s->prob.p.comp[c]);
+ s->counts.comp[c][b->comp]++;
+ }
+
+ // read actual references
+ // FIXME probably cache a few variables here to prevent repetitive
+ // memory accesses below
+ if (b->comp) /* two references */ {
+ int fix_idx = s->s.h.signbias[s->s.h.fixcompref], var_idx = !fix_idx, c, bit;
+
+ b->ref[fix_idx] = s->s.h.fixcompref;
+ // FIXME can this codeblob be replaced by some sort of LUT?
+ if (have_a) {
+ if (have_l) {
+ if (s->above_intra_ctx[col]) {
+ if (s->left_intra_ctx[row7]) {
+ c = 2;
+ } else {
+ c = 1 + 2 * (s->left_ref_ctx[row7] != s->s.h.varcompref[1]);
+ }
+ } else if (s->left_intra_ctx[row7]) {
+ c = 1 + 2 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]);
+ } else {
+ int refl = s->left_ref_ctx[row7], refa = s->above_ref_ctx[col];
+
+ if (refl == refa && refa == s->s.h.varcompref[1]) {
+ c = 0;
+ } else if (!s->left_comp_ctx[row7] && !s->above_comp_ctx[col]) {
+ if ((refa == s->s.h.fixcompref && refl == s->s.h.varcompref[0]) ||
+ (refl == s->s.h.fixcompref && refa == s->s.h.varcompref[0])) {
+ c = 4;
+ } else {
+ c = (refa == refl) ? 3 : 1;
+ }
+ } else if (!s->left_comp_ctx[row7]) {
+ if (refa == s->s.h.varcompref[1] && refl != s->s.h.varcompref[1]) {
+ c = 1;
+ } else {
+ c = (refl == s->s.h.varcompref[1] &&
+ refa != s->s.h.varcompref[1]) ? 2 : 4;
+ }
+ } else if (!s->above_comp_ctx[col]) {
+ if (refl == s->s.h.varcompref[1] && refa != s->s.h.varcompref[1]) {
+ c = 1;
+ } else {
+ c = (refa == s->s.h.varcompref[1] &&
+ refl != s->s.h.varcompref[1]) ? 2 : 4;
+ }
+ } else {
+ c = (refl == refa) ? 4 : 2;
+ }
+ }
+ } else {
+ if (s->above_intra_ctx[col]) {
+ c = 2;
+ } else if (s->above_comp_ctx[col]) {
+ c = 4 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]);
+ } else {
+ c = 3 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]);
+ }
+ }
+ } else if (have_l) {
+ if (s->left_intra_ctx[row7]) {
+ c = 2;
+ } else if (s->left_comp_ctx[row7]) {
+ c = 4 * (s->left_ref_ctx[row7] != s->s.h.varcompref[1]);
+ } else {
+ c = 3 * (s->left_ref_ctx[row7] != s->s.h.varcompref[1]);
+ }
+ } else {
+ c = 2;
+ }
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.comp_ref[c]);
+ b->ref[var_idx] = s->s.h.varcompref[bit];
+ s->counts.comp_ref[c][bit]++;
+ } else /* single reference */ {
+ int bit, c;
+
+ if (have_a && !s->above_intra_ctx[col]) {
+ if (have_l && !s->left_intra_ctx[row7]) {
+ if (s->left_comp_ctx[row7]) {
+ if (s->above_comp_ctx[col]) {
+ c = 1 + (!s->s.h.fixcompref || !s->left_ref_ctx[row7] ||
+ !s->above_ref_ctx[col]);
+ } else {
+ c = (3 * !s->above_ref_ctx[col]) +
+ (!s->s.h.fixcompref || !s->left_ref_ctx[row7]);
+ }
+ } else if (s->above_comp_ctx[col]) {
+ c = (3 * !s->left_ref_ctx[row7]) +
+ (!s->s.h.fixcompref || !s->above_ref_ctx[col]);
+ } else {
+ c = 2 * !s->left_ref_ctx[row7] + 2 * !s->above_ref_ctx[col];
+ }
+ } else if (s->above_intra_ctx[col]) {
+ c = 2;
+ } else if (s->above_comp_ctx[col]) {
+ c = 1 + (!s->s.h.fixcompref || !s->above_ref_ctx[col]);
+ } else {
+ c = 4 * (!s->above_ref_ctx[col]);
+ }
+ } else if (have_l && !s->left_intra_ctx[row7]) {
+ if (s->left_intra_ctx[row7]) {
+ c = 2;
+ } else if (s->left_comp_ctx[row7]) {
+ c = 1 + (!s->s.h.fixcompref || !s->left_ref_ctx[row7]);
+ } else {
+ c = 4 * (!s->left_ref_ctx[row7]);
+ }
+ } else {
+ c = 2;
+ }
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.single_ref[c][0]);
+ s->counts.single_ref[c][0][bit]++;
+ if (!bit) {
+ b->ref[0] = 0;
+ } else {
+ // FIXME can this codeblob be replaced by some sort of LUT?
+ if (have_a) {
+ if (have_l) {
+ if (s->left_intra_ctx[row7]) {
+ if (s->above_intra_ctx[col]) {
+ c = 2;
+ } else if (s->above_comp_ctx[col]) {
+ c = 1 + 2 * (s->s.h.fixcompref == 1 ||
+ s->above_ref_ctx[col] == 1);
+ } else if (!s->above_ref_ctx[col]) {
+ c = 3;
+ } else {
+ c = 4 * (s->above_ref_ctx[col] == 1);
+ }
+ } else if (s->above_intra_ctx[col]) {
+ if (s->left_intra_ctx[row7]) {
+ c = 2;
+ } else if (s->left_comp_ctx[row7]) {
+ c = 1 + 2 * (s->s.h.fixcompref == 1 ||
+ s->left_ref_ctx[row7] == 1);
+ } else if (!s->left_ref_ctx[row7]) {
+ c = 3;
+ } else {
+ c = 4 * (s->left_ref_ctx[row7] == 1);
+ }
+ } else if (s->above_comp_ctx[col]) {
+ if (s->left_comp_ctx[row7]) {
+ if (s->left_ref_ctx[row7] == s->above_ref_ctx[col]) {
+ c = 3 * (s->s.h.fixcompref == 1 ||
+ s->left_ref_ctx[row7] == 1);
+ } else {
+ c = 2;
+ }
+ } else if (!s->left_ref_ctx[row7]) {
+ c = 1 + 2 * (s->s.h.fixcompref == 1 ||
+ s->above_ref_ctx[col] == 1);
+ } else {
+ c = 3 * (s->left_ref_ctx[row7] == 1) +
+ (s->s.h.fixcompref == 1 || s->above_ref_ctx[col] == 1);
+ }
+ } else if (s->left_comp_ctx[row7]) {
+ if (!s->above_ref_ctx[col]) {
+ c = 1 + 2 * (s->s.h.fixcompref == 1 ||
+ s->left_ref_ctx[row7] == 1);
+ } else {
+ c = 3 * (s->above_ref_ctx[col] == 1) +
+ (s->s.h.fixcompref == 1 || s->left_ref_ctx[row7] == 1);
+ }
+ } else if (!s->above_ref_ctx[col]) {
+ if (!s->left_ref_ctx[row7]) {
+ c = 3;
+ } else {
+ c = 4 * (s->left_ref_ctx[row7] == 1);
+ }
+ } else if (!s->left_ref_ctx[row7]) {
+ c = 4 * (s->above_ref_ctx[col] == 1);
+ } else {
+ c = 2 * (s->left_ref_ctx[row7] == 1) +
+ 2 * (s->above_ref_ctx[col] == 1);
+ }
+ } else {
+ if (s->above_intra_ctx[col] ||
+ (!s->above_comp_ctx[col] && !s->above_ref_ctx[col])) {
+ c = 2;
+ } else if (s->above_comp_ctx[col]) {
+ c = 3 * (s->s.h.fixcompref == 1 || s->above_ref_ctx[col] == 1);
+ } else {
+ c = 4 * (s->above_ref_ctx[col] == 1);
+ }
+ }
+ } else if (have_l) {
+ if (s->left_intra_ctx[row7] ||
+ (!s->left_comp_ctx[row7] && !s->left_ref_ctx[row7])) {
+ c = 2;
+ } else if (s->left_comp_ctx[row7]) {
+ c = 3 * (s->s.h.fixcompref == 1 || s->left_ref_ctx[row7] == 1);
+ } else {
+ c = 4 * (s->left_ref_ctx[row7] == 1);
+ }
+ } else {
+ c = 2;
+ }
+ bit = vp56_rac_get_prob(&s->c, s->prob.p.single_ref[c][1]);
+ s->counts.single_ref[c][1][bit]++;
+ b->ref[0] = 1 + bit;
+ }
+ }
+ }
+
+ if (b->bs <= BS_8x8) {
+ if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].skip_enabled) {
+ b->mode[0] = b->mode[1] = b->mode[2] = b->mode[3] = ZEROMV;
+ } else {
+ static const uint8_t off[10] = {
+ 3, 0, 0, 1, 0, 0, 0, 0, 0, 0
+ };
+
+ // FIXME this needs to use the LUT tables from find_ref_mvs
+ // because not all are -1,0/0,-1
+ int c = inter_mode_ctx_lut[s->above_mode_ctx[col + off[b->bs]]]
+ [s->left_mode_ctx[row7 + off[b->bs]]];
+
+ b->mode[0] = vp8_rac_get_tree(&s->c, vp9_inter_mode_tree,
+ s->prob.p.mv_mode[c]);
+ b->mode[1] = b->mode[2] = b->mode[3] = b->mode[0];
+ s->counts.mv_mode[c][b->mode[0] - 10]++;
+ }
+ }
+
+ if (s->s.h.filtermode == FILTER_SWITCHABLE) {
+ int c;
+
+ if (have_a && s->above_mode_ctx[col] >= NEARESTMV) {
+ if (have_l && s->left_mode_ctx[row7] >= NEARESTMV) {
+ c = s->above_filter_ctx[col] == s->left_filter_ctx[row7] ?
+ s->left_filter_ctx[row7] : 3;
+ } else {
+ c = s->above_filter_ctx[col];
+ }
+ } else if (have_l && s->left_mode_ctx[row7] >= NEARESTMV) {
+ c = s->left_filter_ctx[row7];
+ } else {
+ c = 3;
+ }
+
+ filter_id = vp8_rac_get_tree(&s->c, vp9_filter_tree,
+ s->prob.p.filter[c]);
+ s->counts.filter[c][filter_id]++;
+ b->filter = vp9_filter_lut[filter_id];
+ } else {
+ b->filter = s->s.h.filtermode;
+ }
+
+ if (b->bs > BS_8x8) {
+ int c = inter_mode_ctx_lut[s->above_mode_ctx[col]][s->left_mode_ctx[row7]];
+
+ b->mode[0] = vp8_rac_get_tree(&s->c, vp9_inter_mode_tree,
+ s->prob.p.mv_mode[c]);
+ s->counts.mv_mode[c][b->mode[0] - 10]++;
+ fill_mv(s, b->mv[0], b->mode[0], 0);
+
+ if (b->bs != BS_8x4) {
+ b->mode[1] = vp8_rac_get_tree(&s->c, vp9_inter_mode_tree,
+ s->prob.p.mv_mode[c]);
+ s->counts.mv_mode[c][b->mode[1] - 10]++;
+ fill_mv(s, b->mv[1], b->mode[1], 1);
+ } else {
+ b->mode[1] = b->mode[0];
+ AV_COPY32(&b->mv[1][0], &b->mv[0][0]);
+ AV_COPY32(&b->mv[1][1], &b->mv[0][1]);
+ }
+
+ if (b->bs != BS_4x8) {
+ b->mode[2] = vp8_rac_get_tree(&s->c, vp9_inter_mode_tree,
+ s->prob.p.mv_mode[c]);
+ s->counts.mv_mode[c][b->mode[2] - 10]++;
+ fill_mv(s, b->mv[2], b->mode[2], 2);
+
+ if (b->bs != BS_8x4) {
+ b->mode[3] = vp8_rac_get_tree(&s->c, vp9_inter_mode_tree,
+ s->prob.p.mv_mode[c]);
+ s->counts.mv_mode[c][b->mode[3] - 10]++;
+ fill_mv(s, b->mv[3], b->mode[3], 3);
+ } else {
+ b->mode[3] = b->mode[2];
+ AV_COPY32(&b->mv[3][0], &b->mv[2][0]);
+ AV_COPY32(&b->mv[3][1], &b->mv[2][1]);
+ }
+ } else {
+ b->mode[2] = b->mode[0];
+ AV_COPY32(&b->mv[2][0], &b->mv[0][0]);
+ AV_COPY32(&b->mv[2][1], &b->mv[0][1]);
+ b->mode[3] = b->mode[1];
+ AV_COPY32(&b->mv[3][0], &b->mv[1][0]);
+ AV_COPY32(&b->mv[3][1], &b->mv[1][1]);
+ }
+ } else {
+ fill_mv(s, b->mv[0], b->mode[0], -1);
+ AV_COPY32(&b->mv[1][0], &b->mv[0][0]);
+ AV_COPY32(&b->mv[2][0], &b->mv[0][0]);
+ AV_COPY32(&b->mv[3][0], &b->mv[0][0]);
+ AV_COPY32(&b->mv[1][1], &b->mv[0][1]);
+ AV_COPY32(&b->mv[2][1], &b->mv[0][1]);
+ AV_COPY32(&b->mv[3][1], &b->mv[0][1]);
+ }
+
+ vref = b->ref[b->comp ? s->s.h.signbias[s->s.h.varcompref[0]] : 0];
+ }
+
+#if HAVE_FAST_64BIT
+#define SPLAT_CTX(var, val, n) \
+ switch (n) { \
+ case 1: var = val; break; \
+ case 2: AV_WN16A(&var, val * 0x0101); break; \
+ case 4: AV_WN32A(&var, val * 0x01010101); break; \
+ case 8: AV_WN64A(&var, val * 0x0101010101010101ULL); break; \
+ case 16: { \
+ uint64_t v64 = val * 0x0101010101010101ULL; \
+ AV_WN64A( &var, v64); \
+ AV_WN64A(&((uint8_t *) &var)[8], v64); \
+ break; \
+ } \
+ }
+#else
+#define SPLAT_CTX(var, val, n) \
+ switch (n) { \
+ case 1: var = val; break; \
+ case 2: AV_WN16A(&var, val * 0x0101); break; \
+ case 4: AV_WN32A(&var, val * 0x01010101); break; \
+ case 8: { \
+ uint32_t v32 = val * 0x01010101; \
+ AV_WN32A( &var, v32); \
+ AV_WN32A(&((uint8_t *) &var)[4], v32); \
+ break; \
+ } \
+ case 16: { \
+ uint32_t v32 = val * 0x01010101; \
+ AV_WN32A( &var, v32); \
+ AV_WN32A(&((uint8_t *) &var)[4], v32); \
+ AV_WN32A(&((uint8_t *) &var)[8], v32); \
+ AV_WN32A(&((uint8_t *) &var)[12], v32); \
+ break; \
+ } \
+ }
+#endif
+
+ switch (bwh_tab[1][b->bs][0]) {
+#define SET_CTXS(dir, off, n) \
+ do { \
+ SPLAT_CTX(s->dir##_skip_ctx[off], b->skip, n); \
+ SPLAT_CTX(s->dir##_txfm_ctx[off], b->tx, n); \
+ SPLAT_CTX(s->dir##_partition_ctx[off], dir##_ctx[b->bs], n); \
+ if (!s->s.h.keyframe && !s->s.h.intraonly) { \
+ SPLAT_CTX(s->dir##_intra_ctx[off], b->intra, n); \
+ SPLAT_CTX(s->dir##_comp_ctx[off], b->comp, n); \
+ SPLAT_CTX(s->dir##_mode_ctx[off], b->mode[3], n); \
+ if (!b->intra) { \
+ SPLAT_CTX(s->dir##_ref_ctx[off], vref, n); \
+ if (s->s.h.filtermode == FILTER_SWITCHABLE) { \
+ SPLAT_CTX(s->dir##_filter_ctx[off], filter_id, n); \
+ } \
+ } \
+ } \
+ } while (0)
+ case 1: SET_CTXS(above, col, 1); break;
+ case 2: SET_CTXS(above, col, 2); break;
+ case 4: SET_CTXS(above, col, 4); break;
+ case 8: SET_CTXS(above, col, 8); break;
+ }
+ switch (bwh_tab[1][b->bs][1]) {
+ case 1: SET_CTXS(left, row7, 1); break;
+ case 2: SET_CTXS(left, row7, 2); break;
+ case 4: SET_CTXS(left, row7, 4); break;
+ case 8: SET_CTXS(left, row7, 8); break;
+ }
+#undef SPLAT_CTX
+#undef SET_CTXS
+
+ if (!s->s.h.keyframe && !s->s.h.intraonly) {
+ if (b->bs > BS_8x8) {
+ int mv0 = AV_RN32A(&b->mv[3][0]), mv1 = AV_RN32A(&b->mv[3][1]);
+
+ AV_COPY32(&s->left_mv_ctx[row7 * 2 + 0][0], &b->mv[1][0]);
+ AV_COPY32(&s->left_mv_ctx[row7 * 2 + 0][1], &b->mv[1][1]);
+ AV_WN32A(&s->left_mv_ctx[row7 * 2 + 1][0], mv0);
+ AV_WN32A(&s->left_mv_ctx[row7 * 2 + 1][1], mv1);
+ AV_COPY32(&s->above_mv_ctx[col * 2 + 0][0], &b->mv[2][0]);
+ AV_COPY32(&s->above_mv_ctx[col * 2 + 0][1], &b->mv[2][1]);
+ AV_WN32A(&s->above_mv_ctx[col * 2 + 1][0], mv0);
+ AV_WN32A(&s->above_mv_ctx[col * 2 + 1][1], mv1);
+ } else {
+ int n, mv0 = AV_RN32A(&b->mv[3][0]), mv1 = AV_RN32A(&b->mv[3][1]);
+
+ for (n = 0; n < w4 * 2; n++) {
+ AV_WN32A(&s->above_mv_ctx[col * 2 + n][0], mv0);
+ AV_WN32A(&s->above_mv_ctx[col * 2 + n][1], mv1);
+ }
+ for (n = 0; n < h4 * 2; n++) {
+ AV_WN32A(&s->left_mv_ctx[row7 * 2 + n][0], mv0);
+ AV_WN32A(&s->left_mv_ctx[row7 * 2 + n][1], mv1);
+ }
+ }
+ }
+
+ // FIXME kinda ugly
+ for (y = 0; y < h4; y++) {
+ int x, o = (row + y) * s->sb_cols * 8 + col;
+ struct VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[o];
+
+ if (b->intra) {
+ for (x = 0; x < w4; x++) {
+ mv[x].ref[0] =
+ mv[x].ref[1] = -1;
+ }
+ } else if (b->comp) {
+ for (x = 0; x < w4; x++) {
+ mv[x].ref[0] = b->ref[0];
+ mv[x].ref[1] = b->ref[1];
+ AV_COPY32(&mv[x].mv[0], &b->mv[3][0]);
+ AV_COPY32(&mv[x].mv[1], &b->mv[3][1]);
+ }
+ } else {
+ for (x = 0; x < w4; x++) {
+ mv[x].ref[0] = b->ref[0];
+ mv[x].ref[1] = -1;
+ AV_COPY32(&mv[x].mv[0], &b->mv[3][0]);
+ }
+ }
+ }
+}
+
+// FIXME merge cnt/eob arguments?
+static av_always_inline int
+decode_coeffs_b_generic(VP56RangeCoder *c, int16_t *coef, int n_coeffs,
+ int is_tx32x32, int is8bitsperpixel, int bpp, unsigned (*cnt)[6][3],
+ unsigned (*eob)[6][2], uint8_t (*p)[6][11],
+ int nnz, const int16_t *scan, const int16_t (*nb)[2],
+ const int16_t *band_counts, const int16_t *qmul)
+{
+ int i = 0, band = 0, band_left = band_counts[band];
+ uint8_t *tp = p[0][nnz];
+ uint8_t cache[1024];
+
+ do {
+ int val, rc;
+
+ val = vp56_rac_get_prob_branchy(c, tp[0]); // eob
+ eob[band][nnz][val]++;
+ if (!val)
+ break;
+
+ skip_eob:
+ if (!vp56_rac_get_prob_branchy(c, tp[1])) { // zero
+ cnt[band][nnz][0]++;
+ if (!--band_left)
+ band_left = band_counts[++band];
+ cache[scan[i]] = 0;
+ nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1;
+ tp = p[band][nnz];
+ if (++i == n_coeffs)
+ break; //invalid input; blocks should end with EOB
+ goto skip_eob;
+ }
+
+ rc = scan[i];
+ if (!vp56_rac_get_prob_branchy(c, tp[2])) { // one
+ cnt[band][nnz][1]++;
+ val = 1;
+ cache[rc] = 1;
+ } else {
+ // fill in p[3-10] (model fill) - only once per frame for each pos
+ if (!tp[3])
+ memcpy(&tp[3], vp9_model_pareto8[tp[2]], 8);
+
+ cnt[band][nnz][2]++;
+ if (!vp56_rac_get_prob_branchy(c, tp[3])) { // 2, 3, 4
+ if (!vp56_rac_get_prob_branchy(c, tp[4])) {
+ cache[rc] = val = 2;
+ } else {
+ val = 3 + vp56_rac_get_prob(c, tp[5]);
+ cache[rc] = 3;
+ }
+ } else if (!vp56_rac_get_prob_branchy(c, tp[6])) { // cat1/2
+ cache[rc] = 4;
+ if (!vp56_rac_get_prob_branchy(c, tp[7])) {
+ val = 5 + vp56_rac_get_prob(c, 159);
+ } else {
+ val = 7 + (vp56_rac_get_prob(c, 165) << 1);
+ val += vp56_rac_get_prob(c, 145);
+ }
+ } else { // cat 3-6
+ cache[rc] = 5;
+ if (!vp56_rac_get_prob_branchy(c, tp[8])) {
+ if (!vp56_rac_get_prob_branchy(c, tp[9])) {
+ val = 11 + (vp56_rac_get_prob(c, 173) << 2);
+ val += (vp56_rac_get_prob(c, 148) << 1);
+ val += vp56_rac_get_prob(c, 140);
+ } else {
+ val = 19 + (vp56_rac_get_prob(c, 176) << 3);
+ val += (vp56_rac_get_prob(c, 155) << 2);
+ val += (vp56_rac_get_prob(c, 140) << 1);
+ val += vp56_rac_get_prob(c, 135);
+ }
+ } else if (!vp56_rac_get_prob_branchy(c, tp[10])) {
+ val = 35 + (vp56_rac_get_prob(c, 180) << 4);
+ val += (vp56_rac_get_prob(c, 157) << 3);
+ val += (vp56_rac_get_prob(c, 141) << 2);
+ val += (vp56_rac_get_prob(c, 134) << 1);
+ val += vp56_rac_get_prob(c, 130);
+ } else {
+ val = 67;
+ if (!is8bitsperpixel) {
+ if (bpp == 12) {
+ val += vp56_rac_get_prob(c, 255) << 17;
+ val += vp56_rac_get_prob(c, 255) << 16;
+ }
+ val += (vp56_rac_get_prob(c, 255) << 15);
+ val += (vp56_rac_get_prob(c, 255) << 14);
+ }
+ val += (vp56_rac_get_prob(c, 254) << 13);
+ val += (vp56_rac_get_prob(c, 254) << 12);
+ val += (vp56_rac_get_prob(c, 254) << 11);
+ val += (vp56_rac_get_prob(c, 252) << 10);
+ val += (vp56_rac_get_prob(c, 249) << 9);
+ val += (vp56_rac_get_prob(c, 243) << 8);
+ val += (vp56_rac_get_prob(c, 230) << 7);
+ val += (vp56_rac_get_prob(c, 196) << 6);
+ val += (vp56_rac_get_prob(c, 177) << 5);
+ val += (vp56_rac_get_prob(c, 153) << 4);
+ val += (vp56_rac_get_prob(c, 140) << 3);
+ val += (vp56_rac_get_prob(c, 133) << 2);
+ val += (vp56_rac_get_prob(c, 130) << 1);
+ val += vp56_rac_get_prob(c, 129);
+ }
+ }
+ }
+#define STORE_COEF(c, i, v) do { \
+ if (is8bitsperpixel) { \
+ c[i] = v; \
+ } else { \
+ AV_WN32A(&c[i * 2], v); \
+ } \
+} while (0)
+ if (!--band_left)
+ band_left = band_counts[++band];
+ if (is_tx32x32)
+ STORE_COEF(coef, rc, ((vp8_rac_get(c) ? -val : val) * qmul[!!i]) / 2);
+ else
+ STORE_COEF(coef, rc, (vp8_rac_get(c) ? -val : val) * qmul[!!i]);
+ nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1;
+ tp = p[band][nnz];
+ } while (++i < n_coeffs);
+
+ return i;
+}
+
+static int decode_coeffs_b_8bpp(VP9Context *s, int16_t *coef, int n_coeffs,
+ unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ const int16_t *qmul)
+{
+ return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 0, 1, 8, cnt, eob, p,
+ nnz, scan, nb, band_counts, qmul);
+}
+
+static int decode_coeffs_b32_8bpp(VP9Context *s, int16_t *coef, int n_coeffs,
+ unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ const int16_t *qmul)
+{
+ return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 1, 1, 8, cnt, eob, p,
+ nnz, scan, nb, band_counts, qmul);
+}
+
+static int decode_coeffs_b_16bpp(VP9Context *s, int16_t *coef, int n_coeffs,
+ unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ const int16_t *qmul)
+{
+ return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 0, 0, s->bpp, cnt, eob, p,
+ nnz, scan, nb, band_counts, qmul);
+}
+
+static int decode_coeffs_b32_16bpp(VP9Context *s, int16_t *coef, int n_coeffs,
+ unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
+ uint8_t (*p)[6][11], int nnz, const int16_t *scan,
+ const int16_t (*nb)[2], const int16_t *band_counts,
+ const int16_t *qmul)
+{
+ return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 1, 0, s->bpp, cnt, eob, p,
+ nnz, scan, nb, band_counts, qmul);
+}
+
+static av_always_inline int decode_coeffs(AVCodecContext *ctx, int is8bitsperpixel)
+{
+ VP9Context *s = ctx->priv_data;
+ VP9Block *b = s->b;
+ int row = s->row, col = s->col;
+ uint8_t (*p)[6][11] = s->prob.coef[b->tx][0 /* y */][!b->intra];
+ unsigned (*c)[6][3] = s->counts.coef[b->tx][0 /* y */][!b->intra];
+ unsigned (*e)[6][2] = s->counts.eob[b->tx][0 /* y */][!b->intra];
+ int w4 = bwh_tab[1][b->bs][0] << 1, h4 = bwh_tab[1][b->bs][1] << 1;
+ int end_x = FFMIN(2 * (s->cols - col), w4);
+ int end_y = FFMIN(2 * (s->rows - row), h4);
+ int n, pl, x, y, res;
+ int16_t (*qmul)[2] = s->s.h.segmentation.feat[b->seg_id].qmul;
+ int tx = 4 * s->s.h.lossless + b->tx;
+ const int16_t * const *yscans = vp9_scans[tx];
+ const int16_t (* const *ynbs)[2] = vp9_scans_nb[tx];
+ const int16_t *uvscan = vp9_scans[b->uvtx][DCT_DCT];
+ const int16_t (*uvnb)[2] = vp9_scans_nb[b->uvtx][DCT_DCT];
+ uint8_t *a = &s->above_y_nnz_ctx[col * 2];
+ uint8_t *l = &s->left_y_nnz_ctx[(row & 7) << 1];
+ static const int16_t band_counts[4][8] = {
+ { 1, 2, 3, 4, 3, 16 - 13 },
+ { 1, 2, 3, 4, 11, 64 - 21 },
+ { 1, 2, 3, 4, 11, 256 - 21 },
+ { 1, 2, 3, 4, 11, 1024 - 21 },
+ };
+ const int16_t *y_band_counts = band_counts[b->tx];
+ const int16_t *uv_band_counts = band_counts[b->uvtx];
+ int bytesperpixel = is8bitsperpixel ? 1 : 2;
+ int total_coeff = 0;
+
+#define MERGE(la, end, step, rd) \
+ for (n = 0; n < end; n += step) \
+ la[n] = !!rd(&la[n])
+#define MERGE_CTX(step, rd) \
+ do { \
+ MERGE(l, end_y, step, rd); \
+ MERGE(a, end_x, step, rd); \
+ } while (0)
+
+#define DECODE_Y_COEF_LOOP(step, mode_index, v) \
+ for (n = 0, y = 0; y < end_y; y += step) { \
+ for (x = 0; x < end_x; x += step, n += step * step) { \
+ enum TxfmType txtp = vp9_intra_txfm_type[b->mode[mode_index]]; \
+ res = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \
+ (s, s->block + 16 * n * bytesperpixel, 16 * step * step, \
+ c, e, p, a[x] + l[y], yscans[txtp], \
+ ynbs[txtp], y_band_counts, qmul[0]); \
+ a[x] = l[y] = !!res; \
+ total_coeff |= !!res; \
+ if (step >= 4) { \
+ AV_WN16A(&s->eob[n], res); \
+ } else { \
+ s->eob[n] = res; \
+ } \
+ } \
+ }
+
+#define SPLAT(la, end, step, cond) \
+ if (step == 2) { \
+ for (n = 1; n < end; n += step) \
+ la[n] = la[n - 1]; \
+ } else if (step == 4) { \
+ if (cond) { \
+ for (n = 0; n < end; n += step) \
+ AV_WN32A(&la[n], la[n] * 0x01010101); \
+ } else { \
+ for (n = 0; n < end; n += step) \
+ memset(&la[n + 1], la[n], FFMIN(end - n - 1, 3)); \
+ } \
+ } else /* step == 8 */ { \
+ if (cond) { \
+ if (HAVE_FAST_64BIT) { \
+ for (n = 0; n < end; n += step) \
+ AV_WN64A(&la[n], la[n] * 0x0101010101010101ULL); \
+ } else { \
+ for (n = 0; n < end; n += step) { \
+ uint32_t v32 = la[n] * 0x01010101; \
+ AV_WN32A(&la[n], v32); \
+ AV_WN32A(&la[n + 4], v32); \
+ } \
+ } \
+ } else { \
+ for (n = 0; n < end; n += step) \
+ memset(&la[n + 1], la[n], FFMIN(end - n - 1, 7)); \
+ } \
+ }
+#define SPLAT_CTX(step) \
+ do { \
+ SPLAT(a, end_x, step, end_x == w4); \
+ SPLAT(l, end_y, step, end_y == h4); \
+ } while (0)
+
+ /* y tokens */
+ switch (b->tx) {
+ case TX_4X4:
+ DECODE_Y_COEF_LOOP(1, b->bs > BS_8x8 ? n : 0,);
+ break;
+ case TX_8X8:
+ MERGE_CTX(2, AV_RN16A);
+ DECODE_Y_COEF_LOOP(2, 0,);
+ SPLAT_CTX(2);
+ break;
+ case TX_16X16:
+ MERGE_CTX(4, AV_RN32A);
+ DECODE_Y_COEF_LOOP(4, 0,);
+ SPLAT_CTX(4);
+ break;
+ case TX_32X32:
+ MERGE_CTX(8, AV_RN64A);
+ DECODE_Y_COEF_LOOP(8, 0, 32);
+ SPLAT_CTX(8);
+ break;
+ }
+
+#define DECODE_UV_COEF_LOOP(step, v) \
+ for (n = 0, y = 0; y < end_y; y += step) { \
+ for (x = 0; x < end_x; x += step, n += step * step) { \
+ res = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \
+ (s, s->uvblock[pl] + 16 * n * bytesperpixel, \
+ 16 * step * step, c, e, p, a[x] + l[y], \
+ uvscan, uvnb, uv_band_counts, qmul[1]); \
+ a[x] = l[y] = !!res; \
+ total_coeff |= !!res; \
+ if (step >= 4) { \
+ AV_WN16A(&s->uveob[pl][n], res); \
+ } else { \
+ s->uveob[pl][n] = res; \
+ } \
+ } \
+ }
+
+ p = s->prob.coef[b->uvtx][1 /* uv */][!b->intra];
+ c = s->counts.coef[b->uvtx][1 /* uv */][!b->intra];
+ e = s->counts.eob[b->uvtx][1 /* uv */][!b->intra];
+ w4 >>= s->ss_h;
+ end_x >>= s->ss_h;
+ h4 >>= s->ss_v;
+ end_y >>= s->ss_v;
+ for (pl = 0; pl < 2; pl++) {
+ a = &s->above_uv_nnz_ctx[pl][col << !s->ss_h];
+ l = &s->left_uv_nnz_ctx[pl][(row & 7) << !s->ss_v];
+ switch (b->uvtx) {
+ case TX_4X4:
+ DECODE_UV_COEF_LOOP(1,);
+ break;
+ case TX_8X8:
+ MERGE_CTX(2, AV_RN16A);
+ DECODE_UV_COEF_LOOP(2,);
+ SPLAT_CTX(2);
+ break;
+ case TX_16X16:
+ MERGE_CTX(4, AV_RN32A);
+ DECODE_UV_COEF_LOOP(4,);
+ SPLAT_CTX(4);
+ break;
+ case TX_32X32:
+ MERGE_CTX(8, AV_RN64A);
+ DECODE_UV_COEF_LOOP(8, 32);
+ SPLAT_CTX(8);
+ break;
+ }
+ }
+
+ return total_coeff;
+}
+
+static int decode_coeffs_8bpp(AVCodecContext *ctx)
+{
+ return decode_coeffs(ctx, 1);
+}
+
+static int decode_coeffs_16bpp(AVCodecContext *ctx)
+{
+ return decode_coeffs(ctx, 0);
+}
+
+static av_always_inline int check_intra_mode(VP9Context *s, int mode, uint8_t **a,
+ uint8_t *dst_edge, ptrdiff_t stride_edge,
+ uint8_t *dst_inner, ptrdiff_t stride_inner,
+ uint8_t *l, int col, int x, int w,
+ int row, int y, enum TxfmMode tx,
+ int p, int ss_h, int ss_v, int bytesperpixel)
+{
+ int have_top = row > 0 || y > 0;
+ int have_left = col > s->tile_col_start || x > 0;
+ int have_right = x < w - 1;
+ int bpp = s->bpp;
+ static const uint8_t mode_conv[10][2 /* have_left */][2 /* have_top */] = {
+ [VERT_PRED] = { { DC_127_PRED, VERT_PRED },
+ { DC_127_PRED, VERT_PRED } },
+ [HOR_PRED] = { { DC_129_PRED, DC_129_PRED },
+ { HOR_PRED, HOR_PRED } },
+ [DC_PRED] = { { DC_128_PRED, TOP_DC_PRED },
+ { LEFT_DC_PRED, DC_PRED } },
+ [DIAG_DOWN_LEFT_PRED] = { { DC_127_PRED, DIAG_DOWN_LEFT_PRED },
+ { DC_127_PRED, DIAG_DOWN_LEFT_PRED } },
+ [DIAG_DOWN_RIGHT_PRED] = { { DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_RIGHT_PRED },
+ { DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_RIGHT_PRED } },
+ [VERT_RIGHT_PRED] = { { VERT_RIGHT_PRED, VERT_RIGHT_PRED },
+ { VERT_RIGHT_PRED, VERT_RIGHT_PRED } },
+ [HOR_DOWN_PRED] = { { HOR_DOWN_PRED, HOR_DOWN_PRED },
+ { HOR_DOWN_PRED, HOR_DOWN_PRED } },
+ [VERT_LEFT_PRED] = { { DC_127_PRED, VERT_LEFT_PRED },
+ { DC_127_PRED, VERT_LEFT_PRED } },
+ [HOR_UP_PRED] = { { DC_129_PRED, DC_129_PRED },
+ { HOR_UP_PRED, HOR_UP_PRED } },
+ [TM_VP8_PRED] = { { DC_129_PRED, VERT_PRED },
+ { HOR_PRED, TM_VP8_PRED } },
+ };
+ static const struct {
+ uint8_t needs_left:1;
+ uint8_t needs_top:1;
+ uint8_t needs_topleft:1;
+ uint8_t needs_topright:1;
+ uint8_t invert_left:1;
+ } edges[N_INTRA_PRED_MODES] = {
+ [VERT_PRED] = { .needs_top = 1 },
+ [HOR_PRED] = { .needs_left = 1 },
+ [DC_PRED] = { .needs_top = 1, .needs_left = 1 },
+ [DIAG_DOWN_LEFT_PRED] = { .needs_top = 1, .needs_topright = 1 },
+ [DIAG_DOWN_RIGHT_PRED] = { .needs_left = 1, .needs_top = 1, .needs_topleft = 1 },
+ [VERT_RIGHT_PRED] = { .needs_left = 1, .needs_top = 1, .needs_topleft = 1 },
+ [HOR_DOWN_PRED] = { .needs_left = 1, .needs_top = 1, .needs_topleft = 1 },
+ [VERT_LEFT_PRED] = { .needs_top = 1, .needs_topright = 1 },
+ [HOR_UP_PRED] = { .needs_left = 1, .invert_left = 1 },
+ [TM_VP8_PRED] = { .needs_left = 1, .needs_top = 1, .needs_topleft = 1 },
+ [LEFT_DC_PRED] = { .needs_left = 1 },
+ [TOP_DC_PRED] = { .needs_top = 1 },
+ [DC_128_PRED] = { 0 },
+ [DC_127_PRED] = { 0 },
+ [DC_129_PRED] = { 0 }
+ };
+
+ av_assert2(mode >= 0 && mode < 10);
+ mode = mode_conv[mode][have_left][have_top];
+ if (edges[mode].needs_top) {
+ uint8_t *top, *topleft;
+ int n_px_need = 4 << tx, n_px_have = (((s->cols - col) << !ss_h) - x) * 4;
+ int n_px_need_tr = 0;
+
+ if (tx == TX_4X4 && edges[mode].needs_topright && have_right)
+ n_px_need_tr = 4;
+
+ // if top of sb64-row, use s->intra_pred_data[] instead of
+ // dst[-stride] for intra prediction (it contains pre- instead of
+ // post-loopfilter data)
+ if (have_top) {
+ top = !(row & 7) && !y ?
+ s->intra_pred_data[p] + (col * (8 >> ss_h) + x * 4) * bytesperpixel :
+ y == 0 ? &dst_edge[-stride_edge] : &dst_inner[-stride_inner];
+ if (have_left)
+ topleft = !(row & 7) && !y ?
+ s->intra_pred_data[p] + (col * (8 >> ss_h) + x * 4) * bytesperpixel :
+ y == 0 || x == 0 ? &dst_edge[-stride_edge] :
+ &dst_inner[-stride_inner];
+ }
+
+ if (have_top &&
+ (!edges[mode].needs_topleft || (have_left && top == topleft)) &&
+ (tx != TX_4X4 || !edges[mode].needs_topright || have_right) &&
+ n_px_need + n_px_need_tr <= n_px_have) {
+ *a = top;
+ } else {
+ if (have_top) {
+ if (n_px_need <= n_px_have) {
+ memcpy(*a, top, n_px_need * bytesperpixel);
+ } else {
+#define memset_bpp(c, i1, v, i2, num) do { \
+ if (bytesperpixel == 1) { \
+ memset(&(c)[(i1)], (v)[(i2)], (num)); \
+ } else { \
+ int n, val = AV_RN16A(&(v)[(i2) * 2]); \
+ for (n = 0; n < (num); n++) { \
+ AV_WN16A(&(c)[((i1) + n) * 2], val); \
+ } \
+ } \
+} while (0)
+ memcpy(*a, top, n_px_have * bytesperpixel);
+ memset_bpp(*a, n_px_have, (*a), n_px_have - 1, n_px_need - n_px_have);
+ }
+ } else {
+#define memset_val(c, val, num) do { \
+ if (bytesperpixel == 1) { \
+ memset((c), (val), (num)); \
+ } else { \
+ int n; \
+ for (n = 0; n < (num); n++) { \
+ AV_WN16A(&(c)[n * 2], (val)); \
+ } \
+ } \
+} while (0)
+ memset_val(*a, (128 << (bpp - 8)) - 1, n_px_need);
+ }
+ if (edges[mode].needs_topleft) {
+ if (have_left && have_top) {
+#define assign_bpp(c, i1, v, i2) do { \
+ if (bytesperpixel == 1) { \
+ (c)[(i1)] = (v)[(i2)]; \
+ } else { \
+ AV_COPY16(&(c)[(i1) * 2], &(v)[(i2) * 2]); \
+ } \
+} while (0)
+ assign_bpp(*a, -1, topleft, -1);
+ } else {
+#define assign_val(c, i, v) do { \
+ if (bytesperpixel == 1) { \
+ (c)[(i)] = (v); \
+ } else { \
+ AV_WN16A(&(c)[(i) * 2], (v)); \
+ } \
+} while (0)
+ assign_val((*a), -1, (128 << (bpp - 8)) + (have_top ? +1 : -1));
+ }
+ }
+ if (tx == TX_4X4 && edges[mode].needs_topright) {
+ if (have_top && have_right &&
+ n_px_need + n_px_need_tr <= n_px_have) {
+ memcpy(&(*a)[4 * bytesperpixel], &top[4 * bytesperpixel], 4 * bytesperpixel);
+ } else {
+ memset_bpp(*a, 4, *a, 3, 4);
+ }
+ }
+ }
+ }
+ if (edges[mode].needs_left) {
+ if (have_left) {
+ int n_px_need = 4 << tx, i, n_px_have = (((s->rows - row) << !ss_v) - y) * 4;
+ uint8_t *dst = x == 0 ? dst_edge : dst_inner;
+ ptrdiff_t stride = x == 0 ? stride_edge : stride_inner;
+
+ if (edges[mode].invert_left) {
+ if (n_px_need <= n_px_have) {
+ for (i = 0; i < n_px_need; i++)
+ assign_bpp(l, i, &dst[i * stride], -1);
+ } else {
+ for (i = 0; i < n_px_have; i++)
+ assign_bpp(l, i, &dst[i * stride], -1);
+ memset_bpp(l, n_px_have, l, n_px_have - 1, n_px_need - n_px_have);
+ }
+ } else {
+ if (n_px_need <= n_px_have) {
+ for (i = 0; i < n_px_need; i++)
+ assign_bpp(l, n_px_need - 1 - i, &dst[i * stride], -1);
+ } else {
+ for (i = 0; i < n_px_have; i++)
+ assign_bpp(l, n_px_need - 1 - i, &dst[i * stride], -1);
+ memset_bpp(l, 0, l, n_px_need - n_px_have, n_px_need - n_px_have);
+ }
+ }
+ } else {
+ memset_val(l, (128 << (bpp - 8)) + 1, 4 << tx);
+ }
+ }
+
+ return mode;
+}
+
+static av_always_inline void intra_recon(AVCodecContext *ctx, ptrdiff_t y_off,
+ ptrdiff_t uv_off, int bytesperpixel)
+{
+ VP9Context *s = ctx->priv_data;
+ VP9Block *b = s->b;
+ int row = s->row, col = s->col;
+ int w4 = bwh_tab[1][b->bs][0] << 1, step1d = 1 << b->tx, n;
+ int h4 = bwh_tab[1][b->bs][1] << 1, x, y, step = 1 << (b->tx * 2);
+ int end_x = FFMIN(2 * (s->cols - col), w4);
+ int end_y = FFMIN(2 * (s->rows - row), h4);
+ int tx = 4 * s->s.h.lossless + b->tx, uvtx = b->uvtx + 4 * s->s.h.lossless;
+ int uvstep1d = 1 << b->uvtx, p;
+ uint8_t *dst = s->dst[0], *dst_r = s->s.frames[CUR_FRAME].tf.f->data[0] + y_off;
+ LOCAL_ALIGNED_32(uint8_t, a_buf, [96]);
+ LOCAL_ALIGNED_32(uint8_t, l, [64]);
+
+ for (n = 0, y = 0; y < end_y; y += step1d) {
+ uint8_t *ptr = dst, *ptr_r = dst_r;
+ for (x = 0; x < end_x; x += step1d, ptr += 4 * step1d * bytesperpixel,
+ ptr_r += 4 * step1d * bytesperpixel, n += step) {
+ int mode = b->mode[b->bs > BS_8x8 && b->tx == TX_4X4 ?
+ y * 2 + x : 0];
+ uint8_t *a = &a_buf[32];
+ enum TxfmType txtp = vp9_intra_txfm_type[mode];
+ int eob = b->skip ? 0 : b->tx > TX_8X8 ? AV_RN16A(&s->eob[n]) : s->eob[n];
+
+ mode = check_intra_mode(s, mode, &a, ptr_r,
+ s->s.frames[CUR_FRAME].tf.f->linesize[0],
+ ptr, s->y_stride, l,
+ col, x, w4, row, y, b->tx, 0, 0, 0, bytesperpixel);
+ s->dsp.intra_pred[b->tx][mode](ptr, s->y_stride, l, a);
+ if (eob)
+ s->dsp.itxfm_add[tx][txtp](ptr, s->y_stride,
+ s->block + 16 * n * bytesperpixel, eob);
+ }
+ dst_r += 4 * step1d * s->s.frames[CUR_FRAME].tf.f->linesize[0];
+ dst += 4 * step1d * s->y_stride;
+ }
+
+ // U/V
+ w4 >>= s->ss_h;
+ end_x >>= s->ss_h;
+ end_y >>= s->ss_v;
+ step = 1 << (b->uvtx * 2);
+ for (p = 0; p < 2; p++) {
+ dst = s->dst[1 + p];
+ dst_r = s->s.frames[CUR_FRAME].tf.f->data[1 + p] + uv_off;
+ for (n = 0, y = 0; y < end_y; y += uvstep1d) {
+ uint8_t *ptr = dst, *ptr_r = dst_r;
+ for (x = 0; x < end_x; x += uvstep1d, ptr += 4 * uvstep1d * bytesperpixel,
+ ptr_r += 4 * uvstep1d * bytesperpixel, n += step) {
+ int mode = b->uvmode;
+ uint8_t *a = &a_buf[32];
+ int eob = b->skip ? 0 : b->uvtx > TX_8X8 ? AV_RN16A(&s->uveob[p][n]) : s->uveob[p][n];
+
+ mode = check_intra_mode(s, mode, &a, ptr_r,
+ s->s.frames[CUR_FRAME].tf.f->linesize[1],
+ ptr, s->uv_stride, l, col, x, w4, row, y,
+ b->uvtx, p + 1, s->ss_h, s->ss_v, bytesperpixel);
+ s->dsp.intra_pred[b->uvtx][mode](ptr, s->uv_stride, l, a);
+ if (eob)
+ s->dsp.itxfm_add[uvtx][DCT_DCT](ptr, s->uv_stride,
+ s->uvblock[p] + 16 * n * bytesperpixel, eob);
+ }
+ dst_r += 4 * uvstep1d * s->s.frames[CUR_FRAME].tf.f->linesize[1];
+ dst += 4 * uvstep1d * s->uv_stride;
+ }
+ }
+}
+
+static void intra_recon_8bpp(AVCodecContext *ctx, ptrdiff_t y_off, ptrdiff_t uv_off)
+{
+ intra_recon(ctx, y_off, uv_off, 1);
+}
+
+static void intra_recon_16bpp(AVCodecContext *ctx, ptrdiff_t y_off, ptrdiff_t uv_off)
+{
+ intra_recon(ctx, y_off, uv_off, 2);
+}
+
+static av_always_inline void mc_luma_unscaled(VP9Context *s, vp9_mc_func (*mc)[2],
+ uint8_t *dst, ptrdiff_t dst_stride,
+ const uint8_t *ref, ptrdiff_t ref_stride,
+ ThreadFrame *ref_frame,
+ ptrdiff_t y, ptrdiff_t x, const VP56mv *mv,
+ int bw, int bh, int w, int h, int bytesperpixel)
+{
+ int mx = mv->x, my = mv->y, th;
+
+ y += my >> 3;
+ x += mx >> 3;
+ ref += y * ref_stride + x * bytesperpixel;
+ mx &= 7;
+ my &= 7;
+ // FIXME bilinear filter only needs 0/1 pixels, not 3/4
+ // we use +7 because the last 7 pixels of each sbrow can be changed in
+ // the longest loopfilter of the next sbrow
+ th = (y + bh + 4 * !!my + 7) >> 6;
+ ff_thread_await_progress(ref_frame, FFMAX(th, 0), 0);
+ if (x < !!mx * 3 || y < !!my * 3 ||
+ x + !!mx * 4 > w - bw || y + !!my * 4 > h - bh) {
+ s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
+ ref - !!my * 3 * ref_stride - !!mx * 3 * bytesperpixel,
+ 160, ref_stride,
+ bw + !!mx * 7, bh + !!my * 7,
+ x - !!mx * 3, y - !!my * 3, w, h);
+ ref = s->edge_emu_buffer + !!my * 3 * 160 + !!mx * 3 * bytesperpixel;
+ ref_stride = 160;
+ }
+ mc[!!mx][!!my](dst, dst_stride, ref, ref_stride, bh, mx << 1, my << 1);
+}
+
+static av_always_inline void mc_chroma_unscaled(VP9Context *s, vp9_mc_func (*mc)[2],
+ uint8_t *dst_u, uint8_t *dst_v,
+ ptrdiff_t dst_stride,
+ const uint8_t *ref_u, ptrdiff_t src_stride_u,
+ const uint8_t *ref_v, ptrdiff_t src_stride_v,
+ ThreadFrame *ref_frame,
+ ptrdiff_t y, ptrdiff_t x, const VP56mv *mv,
+ int bw, int bh, int w, int h, int bytesperpixel)
+{
+ int mx = mv->x * (1 << !s->ss_h), my = mv->y * (1 << !s->ss_v), th;
+
+ y += my >> 4;
+ x += mx >> 4;
+ ref_u += y * src_stride_u + x * bytesperpixel;
+ ref_v += y * src_stride_v + x * bytesperpixel;
+ mx &= 15;
+ my &= 15;
+ // FIXME bilinear filter only needs 0/1 pixels, not 3/4
+ // we use +7 because the last 7 pixels of each sbrow can be changed in
+ // the longest loopfilter of the next sbrow
+ th = (y + bh + 4 * !!my + 7) >> (6 - s->ss_v);
+ ff_thread_await_progress(ref_frame, FFMAX(th, 0), 0);
+ if (x < !!mx * 3 || y < !!my * 3 ||
+ x + !!mx * 4 > w - bw || y + !!my * 4 > h - bh) {
+ s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
+ ref_u - !!my * 3 * src_stride_u - !!mx * 3 * bytesperpixel,
+ 160, src_stride_u,
+ bw + !!mx * 7, bh + !!my * 7,
+ x - !!mx * 3, y - !!my * 3, w, h);
+ ref_u = s->edge_emu_buffer + !!my * 3 * 160 + !!mx * 3 * bytesperpixel;
+ mc[!!mx][!!my](dst_u, dst_stride, ref_u, 160, bh, mx, my);
+
+ s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
+ ref_v - !!my * 3 * src_stride_v - !!mx * 3 * bytesperpixel,
+ 160, src_stride_v,
+ bw + !!mx * 7, bh + !!my * 7,
+ x - !!mx * 3, y - !!my * 3, w, h);
+ ref_v = s->edge_emu_buffer + !!my * 3 * 160 + !!mx * 3 * bytesperpixel;
+ mc[!!mx][!!my](dst_v, dst_stride, ref_v, 160, bh, mx, my);
+ } else {
+ mc[!!mx][!!my](dst_u, dst_stride, ref_u, src_stride_u, bh, mx, my);
+ mc[!!mx][!!my](dst_v, dst_stride, ref_v, src_stride_v, bh, mx, my);
+ }
+}
+
+#define mc_luma_dir(s, mc, dst, dst_ls, src, src_ls, tref, row, col, mv, \
+ px, py, pw, ph, bw, bh, w, h, i) \
+ mc_luma_unscaled(s, s->dsp.mc, dst, dst_ls, src, src_ls, tref, row, col, \
+ mv, bw, bh, w, h, bytesperpixel)
+#define mc_chroma_dir(s, mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
+ row, col, mv, px, py, pw, ph, bw, bh, w, h, i) \
+ mc_chroma_unscaled(s, s->dsp.mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
+ row, col, mv, bw, bh, w, h, bytesperpixel)
+#define SCALED 0
+#define FN(x) x##_8bpp
+#define BYTES_PER_PIXEL 1
+#include "vp9_mc_template.c"
+#undef FN
+#undef BYTES_PER_PIXEL
+#define FN(x) x##_16bpp
+#define BYTES_PER_PIXEL 2
+#include "vp9_mc_template.c"
+#undef mc_luma_dir
+#undef mc_chroma_dir
+#undef FN
+#undef BYTES_PER_PIXEL
+#undef SCALED
+
+static av_always_inline void mc_luma_scaled(VP9Context *s, vp9_scaled_mc_func smc,
+ vp9_mc_func (*mc)[2],
+ uint8_t *dst, ptrdiff_t dst_stride,
+ const uint8_t *ref, ptrdiff_t ref_stride,
+ ThreadFrame *ref_frame,
+ ptrdiff_t y, ptrdiff_t x, const VP56mv *in_mv,
+ int px, int py, int pw, int ph,
+ int bw, int bh, int w, int h, int bytesperpixel,
+ const uint16_t *scale, const uint8_t *step)
+{
+ if (s->s.frames[CUR_FRAME].tf.f->width == ref_frame->f->width &&
+ s->s.frames[CUR_FRAME].tf.f->height == ref_frame->f->height) {
+ mc_luma_unscaled(s, mc, dst, dst_stride, ref, ref_stride, ref_frame,
+ y, x, in_mv, bw, bh, w, h, bytesperpixel);
+ } else {
+#define scale_mv(n, dim) (((int64_t)(n) * scale[dim]) >> 14)
+ int mx, my;
+ int refbw_m1, refbh_m1;
+ int th;
+ VP56mv mv;
+
+ mv.x = av_clip(in_mv->x, -(x + pw - px + 4) * 8, (s->cols * 8 - x + px + 3) * 8);
+ mv.y = av_clip(in_mv->y, -(y + ph - py + 4) * 8, (s->rows * 8 - y + py + 3) * 8);
+ // BUG libvpx seems to scale the two components separately. This introduces
+ // rounding errors but we have to reproduce them to be exactly compatible
+ // with the output from libvpx...
+ mx = scale_mv(mv.x * 2, 0) + scale_mv(x * 16, 0);
+ my = scale_mv(mv.y * 2, 1) + scale_mv(y * 16, 1);
+
+ y = my >> 4;
+ x = mx >> 4;
+ ref += y * ref_stride + x * bytesperpixel;
+ mx &= 15;
+ my &= 15;
+ refbw_m1 = ((bw - 1) * step[0] + mx) >> 4;
+ refbh_m1 = ((bh - 1) * step[1] + my) >> 4;
+ // FIXME bilinear filter only needs 0/1 pixels, not 3/4
+ // we use +7 because the last 7 pixels of each sbrow can be changed in
+ // the longest loopfilter of the next sbrow
+ th = (y + refbh_m1 + 4 + 7) >> 6;
+ ff_thread_await_progress(ref_frame, FFMAX(th, 0), 0);
+ if (x < 3 || y < 3 || x + 4 >= w - refbw_m1 || y + 4 >= h - refbh_m1) {
+ s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
+ ref - 3 * ref_stride - 3 * bytesperpixel,
+ 288, ref_stride,
+ refbw_m1 + 8, refbh_m1 + 8,
+ x - 3, y - 3, w, h);
+ ref = s->edge_emu_buffer + 3 * 288 + 3 * bytesperpixel;
+ ref_stride = 288;
+ }
+ smc(dst, dst_stride, ref, ref_stride, bh, mx, my, step[0], step[1]);
+ }
+}
+
+static av_always_inline void mc_chroma_scaled(VP9Context *s, vp9_scaled_mc_func smc,
+ vp9_mc_func (*mc)[2],
+ uint8_t *dst_u, uint8_t *dst_v,
+ ptrdiff_t dst_stride,
+ const uint8_t *ref_u, ptrdiff_t src_stride_u,
+ const uint8_t *ref_v, ptrdiff_t src_stride_v,
+ ThreadFrame *ref_frame,
+ ptrdiff_t y, ptrdiff_t x, const VP56mv *in_mv,
+ int px, int py, int pw, int ph,
+ int bw, int bh, int w, int h, int bytesperpixel,
+ const uint16_t *scale, const uint8_t *step)
+{
+ if (s->s.frames[CUR_FRAME].tf.f->width == ref_frame->f->width &&
+ s->s.frames[CUR_FRAME].tf.f->height == ref_frame->f->height) {
+ mc_chroma_unscaled(s, mc, dst_u, dst_v, dst_stride, ref_u, src_stride_u,
+ ref_v, src_stride_v, ref_frame,
+ y, x, in_mv, bw, bh, w, h, bytesperpixel);
+ } else {
+ int mx, my;
+ int refbw_m1, refbh_m1;
+ int th;
+ VP56mv mv;
+
+ if (s->ss_h) {
+ // BUG https://code.google.com/p/webm/issues/detail?id=820
+ mv.x = av_clip(in_mv->x, -(x + pw - px + 4) * 16, (s->cols * 4 - x + px + 3) * 16);
+ mx = scale_mv(mv.x, 0) + (scale_mv(x * 16, 0) & ~15) + (scale_mv(x * 32, 0) & 15);
+ } else {
+ mv.x = av_clip(in_mv->x, -(x + pw - px + 4) * 8, (s->cols * 8 - x + px + 3) * 8);
+ mx = scale_mv(mv.x * 2, 0) + scale_mv(x * 16, 0);
+ }
+ if (s->ss_v) {
+ // BUG https://code.google.com/p/webm/issues/detail?id=820
+ mv.y = av_clip(in_mv->y, -(y + ph - py + 4) * 16, (s->rows * 4 - y + py + 3) * 16);
+ my = scale_mv(mv.y, 1) + (scale_mv(y * 16, 1) & ~15) + (scale_mv(y * 32, 1) & 15);
+ } else {
+ mv.y = av_clip(in_mv->y, -(y + ph - py + 4) * 8, (s->rows * 8 - y + py + 3) * 8);
+ my = scale_mv(mv.y * 2, 1) + scale_mv(y * 16, 1);
+ }
+#undef scale_mv
+ y = my >> 4;
+ x = mx >> 4;
+ ref_u += y * src_stride_u + x * bytesperpixel;
+ ref_v += y * src_stride_v + x * bytesperpixel;
+ mx &= 15;
+ my &= 15;
+ refbw_m1 = ((bw - 1) * step[0] + mx) >> 4;
+ refbh_m1 = ((bh - 1) * step[1] + my) >> 4;
+ // FIXME bilinear filter only needs 0/1 pixels, not 3/4
+ // we use +7 because the last 7 pixels of each sbrow can be changed in
+ // the longest loopfilter of the next sbrow
+ th = (y + refbh_m1 + 4 + 7) >> (6 - s->ss_v);
+ ff_thread_await_progress(ref_frame, FFMAX(th, 0), 0);
+ if (x < 3 || y < 3 || x + 4 >= w - refbw_m1 || y + 4 >= h - refbh_m1) {
+ s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
+ ref_u - 3 * src_stride_u - 3 * bytesperpixel,
+ 288, src_stride_u,
+ refbw_m1 + 8, refbh_m1 + 8,
+ x - 3, y - 3, w, h);
+ ref_u = s->edge_emu_buffer + 3 * 288 + 3 * bytesperpixel;
+ smc(dst_u, dst_stride, ref_u, 288, bh, mx, my, step[0], step[1]);
+
+ s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
+ ref_v - 3 * src_stride_v - 3 * bytesperpixel,
+ 288, src_stride_v,
+ refbw_m1 + 8, refbh_m1 + 8,
+ x - 3, y - 3, w, h);
+ ref_v = s->edge_emu_buffer + 3 * 288 + 3 * bytesperpixel;
+ smc(dst_v, dst_stride, ref_v, 288, bh, mx, my, step[0], step[1]);
+ } else {
+ smc(dst_u, dst_stride, ref_u, src_stride_u, bh, mx, my, step[0], step[1]);
+ smc(dst_v, dst_stride, ref_v, src_stride_v, bh, mx, my, step[0], step[1]);
+ }
+ }
+}
+
+#define mc_luma_dir(s, mc, dst, dst_ls, src, src_ls, tref, row, col, mv, \
+ px, py, pw, ph, bw, bh, w, h, i) \
+ mc_luma_scaled(s, s->dsp.s##mc, s->dsp.mc, dst, dst_ls, src, src_ls, tref, row, col, \
+ mv, px, py, pw, ph, bw, bh, w, h, bytesperpixel, \
+ s->mvscale[b->ref[i]], s->mvstep[b->ref[i]])
+#define mc_chroma_dir(s, mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
+ row, col, mv, px, py, pw, ph, bw, bh, w, h, i) \
+ mc_chroma_scaled(s, s->dsp.s##mc, s->dsp.mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
+ row, col, mv, px, py, pw, ph, bw, bh, w, h, bytesperpixel, \
+ s->mvscale[b->ref[i]], s->mvstep[b->ref[i]])
+#define SCALED 1
+#define FN(x) x##_scaled_8bpp
+#define BYTES_PER_PIXEL 1
+#include "vp9_mc_template.c"
+#undef FN
+#undef BYTES_PER_PIXEL
+#define FN(x) x##_scaled_16bpp
+#define BYTES_PER_PIXEL 2
+#include "vp9_mc_template.c"
+#undef mc_luma_dir
+#undef mc_chroma_dir
+#undef FN
+#undef BYTES_PER_PIXEL
+#undef SCALED
+
+static av_always_inline void inter_recon(AVCodecContext *ctx, int bytesperpixel)
+{
+ VP9Context *s = ctx->priv_data;
+ VP9Block *b = s->b;
+ int row = s->row, col = s->col;
+
+ if (s->mvscale[b->ref[0]][0] || (b->comp && s->mvscale[b->ref[1]][0])) {
+ if (bytesperpixel == 1) {
+ inter_pred_scaled_8bpp(ctx);
+ } else {
+ inter_pred_scaled_16bpp(ctx);
+ }
+ } else {
+ if (bytesperpixel == 1) {
+ inter_pred_8bpp(ctx);
+ } else {
+ inter_pred_16bpp(ctx);
+ }
+ }
+ if (!b->skip) {
+ /* mostly copied intra_recon() */
+
+ int w4 = bwh_tab[1][b->bs][0] << 1, step1d = 1 << b->tx, n;
+ int h4 = bwh_tab[1][b->bs][1] << 1, x, y, step = 1 << (b->tx * 2);
+ int end_x = FFMIN(2 * (s->cols - col), w4);
+ int end_y = FFMIN(2 * (s->rows - row), h4);
+ int tx = 4 * s->s.h.lossless + b->tx, uvtx = b->uvtx + 4 * s->s.h.lossless;
+ int uvstep1d = 1 << b->uvtx, p;
+ uint8_t *dst = s->dst[0];
+
+ // y itxfm add
+ for (n = 0, y = 0; y < end_y; y += step1d) {
+ uint8_t *ptr = dst;
+ for (x = 0; x < end_x; x += step1d,
+ ptr += 4 * step1d * bytesperpixel, n += step) {
+ int eob = b->tx > TX_8X8 ? AV_RN16A(&s->eob[n]) : s->eob[n];
+
+ if (eob)
+ s->dsp.itxfm_add[tx][DCT_DCT](ptr, s->y_stride,
+ s->block + 16 * n * bytesperpixel, eob);
+ }
+ dst += 4 * s->y_stride * step1d;
+ }
+
+ // uv itxfm add
+ end_x >>= s->ss_h;
+ end_y >>= s->ss_v;
+ step = 1 << (b->uvtx * 2);
+ for (p = 0; p < 2; p++) {
+ dst = s->dst[p + 1];
+ for (n = 0, y = 0; y < end_y; y += uvstep1d) {
+ uint8_t *ptr = dst;
+ for (x = 0; x < end_x; x += uvstep1d,
+ ptr += 4 * uvstep1d * bytesperpixel, n += step) {
+ int eob = b->uvtx > TX_8X8 ? AV_RN16A(&s->uveob[p][n]) : s->uveob[p][n];
+
+ if (eob)
+ s->dsp.itxfm_add[uvtx][DCT_DCT](ptr, s->uv_stride,
+ s->uvblock[p] + 16 * n * bytesperpixel, eob);
+ }
+ dst += 4 * uvstep1d * s->uv_stride;
+ }
+ }
+ }
+}
+
+static void inter_recon_8bpp(AVCodecContext *ctx)
+{
+ inter_recon(ctx, 1);
+}
+
+static void inter_recon_16bpp(AVCodecContext *ctx)
+{
+ inter_recon(ctx, 2);
+}
+
+static av_always_inline void mask_edges(uint8_t (*mask)[8][4], int ss_h, int ss_v,
+ int row_and_7, int col_and_7,
+ int w, int h, int col_end, int row_end,
+ enum TxfmMode tx, int skip_inter)
+{
+ static const unsigned wide_filter_col_mask[2] = { 0x11, 0x01 };
+ static const unsigned wide_filter_row_mask[2] = { 0x03, 0x07 };
+
+ // FIXME I'm pretty sure all loops can be replaced by a single LUT if
+ // we make VP9Filter.mask uint64_t (i.e. row/col all single variable)
+ // and make the LUT 5-indexed (bl, bp, is_uv, tx and row/col), and then
+ // use row_and_7/col_and_7 as shifts (1*col_and_7+8*row_and_7)
+
+ // the intended behaviour of the vp9 loopfilter is to work on 8-pixel
+ // edges. This means that for UV, we work on two subsampled blocks at
+ // a time, and we only use the topleft block's mode information to set
+ // things like block strength. Thus, for any block size smaller than
+ // 16x16, ignore the odd portion of the block.
+ if (tx == TX_4X4 && (ss_v | ss_h)) {
+ if (h == ss_v) {
+ if (row_and_7 & 1)
+ return;
+ if (!row_end)
+ h += 1;
+ }
+ if (w == ss_h) {
+ if (col_and_7 & 1)
+ return;
+ if (!col_end)
+ w += 1;
+ }
+ }
+
+ if (tx == TX_4X4 && !skip_inter) {
+ int t = 1 << col_and_7, m_col = (t << w) - t, y;
+ // on 32-px edges, use the 8-px wide loopfilter; else, use 4-px wide
+ int m_row_8 = m_col & wide_filter_col_mask[ss_h], m_row_4 = m_col - m_row_8;
+
+ for (y = row_and_7; y < h + row_and_7; y++) {
+ int col_mask_id = 2 - !(y & wide_filter_row_mask[ss_v]);
+
+ mask[0][y][1] |= m_row_8;
+ mask[0][y][2] |= m_row_4;
+ // for odd lines, if the odd col is not being filtered,
+ // skip odd row also:
+ // .---. <-- a
+ // | |
+ // |___| <-- b
+ // ^ ^
+ // c d
+ //
+ // if a/c are even row/col and b/d are odd, and d is skipped,
+ // e.g. right edge of size-66x66.webm, then skip b also (bug)
+ if ((ss_h & ss_v) && (col_end & 1) && (y & 1)) {
+ mask[1][y][col_mask_id] |= (t << (w - 1)) - t;
+ } else {
+ mask[1][y][col_mask_id] |= m_col;
+ }
+ if (!ss_h)
+ mask[0][y][3] |= m_col;
+ if (!ss_v) {
+ if (ss_h && (col_end & 1))
+ mask[1][y][3] |= (t << (w - 1)) - t;
+ else
+ mask[1][y][3] |= m_col;
+ }
+ }
+ } else {
+ int y, t = 1 << col_and_7, m_col = (t << w) - t;
+
+ if (!skip_inter) {
+ int mask_id = (tx == TX_8X8);
+ static const unsigned masks[4] = { 0xff, 0x55, 0x11, 0x01 };
+ int l2 = tx + ss_h - 1, step1d;
+ int m_row = m_col & masks[l2];
+
+ // at odd UV col/row edges tx16/tx32 loopfilter edges, force
+ // 8wd loopfilter to prevent going off the visible edge.
+ if (ss_h && tx > TX_8X8 && (w ^ (w - 1)) == 1) {
+ int m_row_16 = ((t << (w - 1)) - t) & masks[l2];
+ int m_row_8 = m_row - m_row_16;
+
+ for (y = row_and_7; y < h + row_and_7; y++) {
+ mask[0][y][0] |= m_row_16;
+ mask[0][y][1] |= m_row_8;
+ }
+ } else {
+ for (y = row_and_7; y < h + row_and_7; y++)
+ mask[0][y][mask_id] |= m_row;
+ }
+
+ l2 = tx + ss_v - 1;
+ step1d = 1 << l2;
+ if (ss_v && tx > TX_8X8 && (h ^ (h - 1)) == 1) {
+ for (y = row_and_7; y < h + row_and_7 - 1; y += step1d)
+ mask[1][y][0] |= m_col;
+ if (y - row_and_7 == h - 1)
+ mask[1][y][1] |= m_col;
+ } else {
+ for (y = row_and_7; y < h + row_and_7; y += step1d)
+ mask[1][y][mask_id] |= m_col;
+ }
+ } else if (tx != TX_4X4) {
+ int mask_id;
+
+ mask_id = (tx == TX_8X8) || (h == ss_v);
+ mask[1][row_and_7][mask_id] |= m_col;
+ mask_id = (tx == TX_8X8) || (w == ss_h);
+ for (y = row_and_7; y < h + row_and_7; y++)
+ mask[0][y][mask_id] |= t;
+ } else {
+ int t8 = t & wide_filter_col_mask[ss_h], t4 = t - t8;
+
+ for (y = row_and_7; y < h + row_and_7; y++) {
+ mask[0][y][2] |= t4;
+ mask[0][y][1] |= t8;
+ }
+ mask[1][row_and_7][2 - !(row_and_7 & wide_filter_row_mask[ss_v])] |= m_col;
+ }
+ }
+}
+
+static void decode_b(AVCodecContext *ctx, int row, int col,
+ struct VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff,
+ enum BlockLevel bl, enum BlockPartition bp)
+{
+ VP9Context *s = ctx->priv_data;
+ VP9Block *b = s->b;
+ enum BlockSize bs = bl * 3 + bp;
+ int bytesperpixel = s->bytesperpixel;
+ int w4 = bwh_tab[1][bs][0], h4 = bwh_tab[1][bs][1], lvl;
+ int emu[2];
+ AVFrame *f = s->s.frames[CUR_FRAME].tf.f;
+
+ s->row = row;
+ s->row7 = row & 7;
+ s->col = col;
+ s->col7 = col & 7;
+ s->min_mv.x = -(128 + col * 64);
+ s->min_mv.y = -(128 + row * 64);
+ s->max_mv.x = 128 + (s->cols - col - w4) * 64;
+ s->max_mv.y = 128 + (s->rows - row - h4) * 64;
+ if (s->pass < 2) {
+ b->bs = bs;
+ b->bl = bl;
+ b->bp = bp;
+ decode_mode(ctx);
+ b->uvtx = b->tx - ((s->ss_h && w4 * 2 == (1 << b->tx)) ||
+ (s->ss_v && h4 * 2 == (1 << b->tx)));
+
+ if (!b->skip) {
+ int has_coeffs;
+
+ if (bytesperpixel == 1) {
+ has_coeffs = decode_coeffs_8bpp(ctx);
+ } else {
+ has_coeffs = decode_coeffs_16bpp(ctx);
+ }
+ if (!has_coeffs && b->bs <= BS_8x8 && !b->intra) {
+ b->skip = 1;
+ memset(&s->above_skip_ctx[col], 1, w4);
+ memset(&s->left_skip_ctx[s->row7], 1, h4);
+ }
+ } else {
+ int row7 = s->row7;
+
+#define SPLAT_ZERO_CTX(v, n) \
+ switch (n) { \
+ case 1: v = 0; break; \
+ case 2: AV_ZERO16(&v); break; \
+ case 4: AV_ZERO32(&v); break; \
+ case 8: AV_ZERO64(&v); break; \
+ case 16: AV_ZERO128(&v); break; \
+ }
+#define SPLAT_ZERO_YUV(dir, var, off, n, dir2) \
+ do { \
+ SPLAT_ZERO_CTX(s->dir##_y_##var[off * 2], n * 2); \
+ if (s->ss_##dir2) { \
+ SPLAT_ZERO_CTX(s->dir##_uv_##var[0][off], n); \
+ SPLAT_ZERO_CTX(s->dir##_uv_##var[1][off], n); \
+ } else { \
+ SPLAT_ZERO_CTX(s->dir##_uv_##var[0][off * 2], n * 2); \
+ SPLAT_ZERO_CTX(s->dir##_uv_##var[1][off * 2], n * 2); \
+ } \
+ } while (0)
+
+ switch (w4) {
+ case 1: SPLAT_ZERO_YUV(above, nnz_ctx, col, 1, h); break;
+ case 2: SPLAT_ZERO_YUV(above, nnz_ctx, col, 2, h); break;
+ case 4: SPLAT_ZERO_YUV(above, nnz_ctx, col, 4, h); break;
+ case 8: SPLAT_ZERO_YUV(above, nnz_ctx, col, 8, h); break;
+ }
+ switch (h4) {
+ case 1: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 1, v); break;
+ case 2: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 2, v); break;
+ case 4: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 4, v); break;
+ case 8: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 8, v); break;
+ }
+ }
+
+ if (s->pass == 1) {
+ s->b++;
+ s->block += w4 * h4 * 64 * bytesperpixel;
+ s->uvblock[0] += w4 * h4 * 64 * bytesperpixel >> (s->ss_h + s->ss_v);
+ s->uvblock[1] += w4 * h4 * 64 * bytesperpixel >> (s->ss_h + s->ss_v);
+ s->eob += 4 * w4 * h4;
+ s->uveob[0] += 4 * w4 * h4 >> (s->ss_h + s->ss_v);
+ s->uveob[1] += 4 * w4 * h4 >> (s->ss_h + s->ss_v);
+
+ return;
+ }
+ }
+
+ // emulated overhangs if the stride of the target buffer can't hold. This
+ // makes it possible to support emu-edge and so on even if we have large block
+ // overhangs
+ emu[0] = (col + w4) * 8 * bytesperpixel > f->linesize[0] ||
+ (row + h4) > s->rows;
+ emu[1] = ((col + w4) * 8 >> s->ss_h) * bytesperpixel > f->linesize[1] ||
+ (row + h4) > s->rows;
+ if (emu[0]) {
+ s->dst[0] = s->tmp_y;
+ s->y_stride = 128;
+ } else {
+ s->dst[0] = f->data[0] + yoff;
+ s->y_stride = f->linesize[0];
+ }
+ if (emu[1]) {
+ s->dst[1] = s->tmp_uv[0];
+ s->dst[2] = s->tmp_uv[1];
+ s->uv_stride = 128;
+ } else {
+ s->dst[1] = f->data[1] + uvoff;
+ s->dst[2] = f->data[2] + uvoff;
+ s->uv_stride = f->linesize[1];
+ }
+ if (b->intra) {
+ if (s->bpp > 8) {
+ intra_recon_16bpp(ctx, yoff, uvoff);
+ } else {
+ intra_recon_8bpp(ctx, yoff, uvoff);
+ }
+ } else {
+ if (s->bpp > 8) {
+ inter_recon_16bpp(ctx);
+ } else {
+ inter_recon_8bpp(ctx);
+ }
+ }
+ if (emu[0]) {
+ int w = FFMIN(s->cols - col, w4) * 8, h = FFMIN(s->rows - row, h4) * 8, n, o = 0;
+
+ for (n = 0; o < w; n++) {
+ int bw = 64 >> n;
+
+ av_assert2(n <= 4);
+ if (w & bw) {
+ s->dsp.mc[n][0][0][0][0](f->data[0] + yoff + o * bytesperpixel, f->linesize[0],
+ s->tmp_y + o * bytesperpixel, 128, h, 0, 0);
+ o += bw;
+ }
+ }
+ }
+ if (emu[1]) {
+ int w = FFMIN(s->cols - col, w4) * 8 >> s->ss_h;
+ int h = FFMIN(s->rows - row, h4) * 8 >> s->ss_v, n, o = 0;
+
+ for (n = s->ss_h; o < w; n++) {
+ int bw = 64 >> n;
+
+ av_assert2(n <= 4);
+ if (w & bw) {
+ s->dsp.mc[n][0][0][0][0](f->data[1] + uvoff + o * bytesperpixel, f->linesize[1],
+ s->tmp_uv[0] + o * bytesperpixel, 128, h, 0, 0);
+ s->dsp.mc[n][0][0][0][0](f->data[2] + uvoff + o * bytesperpixel, f->linesize[2],
+ s->tmp_uv[1] + o * bytesperpixel, 128, h, 0, 0);
+ o += bw;
+ }
+ }
+ }
+
+ // pick filter level and find edges to apply filter to
+ if (s->s.h.filter.level &&
+ (lvl = s->s.h.segmentation.feat[b->seg_id].lflvl[b->intra ? 0 : b->ref[0] + 1]
+ [b->mode[3] != ZEROMV]) > 0) {
+ int x_end = FFMIN(s->cols - col, w4), y_end = FFMIN(s->rows - row, h4);
+ int skip_inter = !b->intra && b->skip, col7 = s->col7, row7 = s->row7;
+
+ setctx_2d(&lflvl->level[row7 * 8 + col7], w4, h4, 8, lvl);
+ mask_edges(lflvl->mask[0], 0, 0, row7, col7, x_end, y_end, 0, 0, b->tx, skip_inter);
+ if (s->ss_h || s->ss_v)
+ mask_edges(lflvl->mask[1], s->ss_h, s->ss_v, row7, col7, x_end, y_end,
+ s->cols & 1 && col + w4 >= s->cols ? s->cols & 7 : 0,
+ s->rows & 1 && row + h4 >= s->rows ? s->rows & 7 : 0,
+ b->uvtx, skip_inter);
+
+ if (!s->filter_lut.lim_lut[lvl]) {
+ int sharp = s->s.h.filter.sharpness;
+ int limit = lvl;
+
+ if (sharp > 0) {
+ limit >>= (sharp + 3) >> 2;
+ limit = FFMIN(limit, 9 - sharp);
+ }
+ limit = FFMAX(limit, 1);
+
+ s->filter_lut.lim_lut[lvl] = limit;
+ s->filter_lut.mblim_lut[lvl] = 2 * (lvl + 2) + limit;
+ }
+ }
+
+ if (s->pass == 2) {
+ s->b++;
+ s->block += w4 * h4 * 64 * bytesperpixel;
+ s->uvblock[0] += w4 * h4 * 64 * bytesperpixel >> (s->ss_v + s->ss_h);
+ s->uvblock[1] += w4 * h4 * 64 * bytesperpixel >> (s->ss_v + s->ss_h);
+ s->eob += 4 * w4 * h4;
+ s->uveob[0] += 4 * w4 * h4 >> (s->ss_v + s->ss_h);
+ s->uveob[1] += 4 * w4 * h4 >> (s->ss_v + s->ss_h);
+ }
+}
+
+static void decode_sb(AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl,
+ ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
+{
+ VP9Context *s = ctx->priv_data;
+ int c = ((s->above_partition_ctx[col] >> (3 - bl)) & 1) |
+ (((s->left_partition_ctx[row & 0x7] >> (3 - bl)) & 1) << 1);
+ const uint8_t *p = s->s.h.keyframe || s->s.h.intraonly ? vp9_default_kf_partition_probs[bl][c] :
+ s->prob.p.partition[bl][c];
+ enum BlockPartition bp;
+ ptrdiff_t hbs = 4 >> bl;
+ AVFrame *f = s->s.frames[CUR_FRAME].tf.f;
+ ptrdiff_t y_stride = f->linesize[0], uv_stride = f->linesize[1];
+ int bytesperpixel = s->bytesperpixel;
+
+ if (bl == BL_8X8) {
+ bp = vp8_rac_get_tree(&s->c, vp9_partition_tree, p);
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
+ } else if (col + hbs < s->cols) { // FIXME why not <=?
+ if (row + hbs < s->rows) { // FIXME why not <=?
+ bp = vp8_rac_get_tree(&s->c, vp9_partition_tree, p);
+ switch (bp) {
+ case PARTITION_NONE:
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
+ break;
+ case PARTITION_H:
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
+ yoff += hbs * 8 * y_stride;
+ uvoff += hbs * 8 * uv_stride >> s->ss_v;
+ decode_b(ctx, row + hbs, col, lflvl, yoff, uvoff, bl, bp);
+ break;
+ case PARTITION_V:
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
+ yoff += hbs * 8 * bytesperpixel;
+ uvoff += hbs * 8 * bytesperpixel >> s->ss_h;
+ decode_b(ctx, row, col + hbs, lflvl, yoff, uvoff, bl, bp);
+ break;
+ case PARTITION_SPLIT:
+ decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
+ decode_sb(ctx, row, col + hbs, lflvl,
+ yoff + 8 * hbs * bytesperpixel,
+ uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1);
+ yoff += hbs * 8 * y_stride;
+ uvoff += hbs * 8 * uv_stride >> s->ss_v;
+ decode_sb(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
+ decode_sb(ctx, row + hbs, col + hbs, lflvl,
+ yoff + 8 * hbs * bytesperpixel,
+ uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1);
+ break;
+ default:
+ av_assert0(0);
+ }
+ } else if (vp56_rac_get_prob_branchy(&s->c, p[1])) {
+ bp = PARTITION_SPLIT;
+ decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
+ decode_sb(ctx, row, col + hbs, lflvl,
+ yoff + 8 * hbs * bytesperpixel,
+ uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1);
+ } else {
+ bp = PARTITION_H;
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
+ }
+ } else if (row + hbs < s->rows) { // FIXME why not <=?
+ if (vp56_rac_get_prob_branchy(&s->c, p[2])) {
+ bp = PARTITION_SPLIT;
+ decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
+ yoff += hbs * 8 * y_stride;
+ uvoff += hbs * 8 * uv_stride >> s->ss_v;
+ decode_sb(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
+ } else {
+ bp = PARTITION_V;
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, bl, bp);
+ }
+ } else {
+ bp = PARTITION_SPLIT;
+ decode_sb(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
+ }
+ s->counts.partition[bl][c][bp]++;
+}
+
+static void decode_sb_mem(AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl,
+ ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
+{
+ VP9Context *s = ctx->priv_data;
+ VP9Block *b = s->b;
+ ptrdiff_t hbs = 4 >> bl;
+ AVFrame *f = s->s.frames[CUR_FRAME].tf.f;
+ ptrdiff_t y_stride = f->linesize[0], uv_stride = f->linesize[1];
+ int bytesperpixel = s->bytesperpixel;
+
+ if (bl == BL_8X8) {
+ av_assert2(b->bl == BL_8X8);
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, b->bl, b->bp);
+ } else if (s->b->bl == bl) {
+ decode_b(ctx, row, col, lflvl, yoff, uvoff, b->bl, b->bp);
+ if (b->bp == PARTITION_H && row + hbs < s->rows) {
+ yoff += hbs * 8 * y_stride;
+ uvoff += hbs * 8 * uv_stride >> s->ss_v;
+ decode_b(ctx, row + hbs, col, lflvl, yoff, uvoff, b->bl, b->bp);
+ } else if (b->bp == PARTITION_V && col + hbs < s->cols) {
+ yoff += hbs * 8 * bytesperpixel;
+ uvoff += hbs * 8 * bytesperpixel >> s->ss_h;
+ decode_b(ctx, row, col + hbs, lflvl, yoff, uvoff, b->bl, b->bp);
+ }
+ } else {
+ decode_sb_mem(ctx, row, col, lflvl, yoff, uvoff, bl + 1);
+ if (col + hbs < s->cols) { // FIXME why not <=?
+ if (row + hbs < s->rows) {
+ decode_sb_mem(ctx, row, col + hbs, lflvl, yoff + 8 * hbs * bytesperpixel,
+ uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1);
+ yoff += hbs * 8 * y_stride;
+ uvoff += hbs * 8 * uv_stride >> s->ss_v;
+ decode_sb_mem(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
+ decode_sb_mem(ctx, row + hbs, col + hbs, lflvl,
+ yoff + 8 * hbs * bytesperpixel,
+ uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1);
+ } else {
+ yoff += hbs * 8 * bytesperpixel;
+ uvoff += hbs * 8 * bytesperpixel >> s->ss_h;
+ decode_sb_mem(ctx, row, col + hbs, lflvl, yoff, uvoff, bl + 1);
+ }
+ } else if (row + hbs < s->rows) {
+ yoff += hbs * 8 * y_stride;
+ uvoff += hbs * 8 * uv_stride >> s->ss_v;
+ decode_sb_mem(ctx, row + hbs, col, lflvl, yoff, uvoff, bl + 1);
+ }
+ }
+}
+
+static av_always_inline void filter_plane_cols(VP9Context *s, int col, int ss_h, int ss_v,
+ uint8_t *lvl, uint8_t (*mask)[4],
+ uint8_t *dst, ptrdiff_t ls)
+{
+ int y, x, bytesperpixel = s->bytesperpixel;
+
+ // filter edges between columns (e.g. block1 | block2)
+ for (y = 0; y < 8; y += 2 << ss_v, dst += 16 * ls, lvl += 16 << ss_v) {
+ uint8_t *ptr = dst, *l = lvl, *hmask1 = mask[y], *hmask2 = mask[y + 1 + ss_v];
+ unsigned hm1 = hmask1[0] | hmask1[1] | hmask1[2], hm13 = hmask1[3];
+ unsigned hm2 = hmask2[1] | hmask2[2], hm23 = hmask2[3];
+ unsigned hm = hm1 | hm2 | hm13 | hm23;
+
+ for (x = 1; hm & ~(x - 1); x <<= 1, ptr += 8 * bytesperpixel >> ss_h) {
+ if (col || x > 1) {
+ if (hm1 & x) {
+ int L = *l, H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ if (hmask1[0] & x) {
+ if (hmask2[0] & x) {
+ av_assert2(l[8 << ss_v] == L);
+ s->dsp.loop_filter_16[0](ptr, ls, E, I, H);
+ } else {
+ s->dsp.loop_filter_8[2][0](ptr, ls, E, I, H);
+ }
+ } else if (hm2 & x) {
+ L = l[8 << ss_v];
+ H |= (L >> 4) << 8;
+ E |= s->filter_lut.mblim_lut[L] << 8;
+ I |= s->filter_lut.lim_lut[L] << 8;
+ s->dsp.loop_filter_mix2[!!(hmask1[1] & x)]
+ [!!(hmask2[1] & x)]
+ [0](ptr, ls, E, I, H);
+ } else {
+ s->dsp.loop_filter_8[!!(hmask1[1] & x)]
+ [0](ptr, ls, E, I, H);
+ }
+ } else if (hm2 & x) {
+ int L = l[8 << ss_v], H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ s->dsp.loop_filter_8[!!(hmask2[1] & x)]
+ [0](ptr + 8 * ls, ls, E, I, H);
+ }
+ }
+ if (ss_h) {
+ if (x & 0xAA)
+ l += 2;
+ } else {
+ if (hm13 & x) {
+ int L = *l, H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ if (hm23 & x) {
+ L = l[8 << ss_v];
+ H |= (L >> 4) << 8;
+ E |= s->filter_lut.mblim_lut[L] << 8;
+ I |= s->filter_lut.lim_lut[L] << 8;
+ s->dsp.loop_filter_mix2[0][0][0](ptr + 4 * bytesperpixel, ls, E, I, H);
+ } else {
+ s->dsp.loop_filter_8[0][0](ptr + 4 * bytesperpixel, ls, E, I, H);
+ }
+ } else if (hm23 & x) {
+ int L = l[8 << ss_v], H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ s->dsp.loop_filter_8[0][0](ptr + 8 * ls + 4 * bytesperpixel, ls, E, I, H);
+ }
+ l++;
+ }
+ }
+ }
+}
+
+static av_always_inline void filter_plane_rows(VP9Context *s, int row, int ss_h, int ss_v,
+ uint8_t *lvl, uint8_t (*mask)[4],
+ uint8_t *dst, ptrdiff_t ls)
+{
+ int y, x, bytesperpixel = s->bytesperpixel;
+
+ // block1
+ // filter edges between rows (e.g. ------)
+ // block2
+ for (y = 0; y < 8; y++, dst += 8 * ls >> ss_v) {
+ uint8_t *ptr = dst, *l = lvl, *vmask = mask[y];
+ unsigned vm = vmask[0] | vmask[1] | vmask[2], vm3 = vmask[3];
+
+ for (x = 1; vm & ~(x - 1); x <<= (2 << ss_h), ptr += 16 * bytesperpixel, l += 2 << ss_h) {
+ if (row || y) {
+ if (vm & x) {
+ int L = *l, H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ if (vmask[0] & x) {
+ if (vmask[0] & (x << (1 + ss_h))) {
+ av_assert2(l[1 + ss_h] == L);
+ s->dsp.loop_filter_16[1](ptr, ls, E, I, H);
+ } else {
+ s->dsp.loop_filter_8[2][1](ptr, ls, E, I, H);
+ }
+ } else if (vm & (x << (1 + ss_h))) {
+ L = l[1 + ss_h];
+ H |= (L >> 4) << 8;
+ E |= s->filter_lut.mblim_lut[L] << 8;
+ I |= s->filter_lut.lim_lut[L] << 8;
+ s->dsp.loop_filter_mix2[!!(vmask[1] & x)]
+ [!!(vmask[1] & (x << (1 + ss_h)))]
+ [1](ptr, ls, E, I, H);
+ } else {
+ s->dsp.loop_filter_8[!!(vmask[1] & x)]
+ [1](ptr, ls, E, I, H);
+ }
+ } else if (vm & (x << (1 + ss_h))) {
+ int L = l[1 + ss_h], H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ s->dsp.loop_filter_8[!!(vmask[1] & (x << (1 + ss_h)))]
+ [1](ptr + 8 * bytesperpixel, ls, E, I, H);
+ }
+ }
+ if (!ss_v) {
+ if (vm3 & x) {
+ int L = *l, H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ if (vm3 & (x << (1 + ss_h))) {
+ L = l[1 + ss_h];
+ H |= (L >> 4) << 8;
+ E |= s->filter_lut.mblim_lut[L] << 8;
+ I |= s->filter_lut.lim_lut[L] << 8;
+ s->dsp.loop_filter_mix2[0][0][1](ptr + ls * 4, ls, E, I, H);
+ } else {
+ s->dsp.loop_filter_8[0][1](ptr + ls * 4, ls, E, I, H);
+ }
+ } else if (vm3 & (x << (1 + ss_h))) {
+ int L = l[1 + ss_h], H = L >> 4;
+ int E = s->filter_lut.mblim_lut[L], I = s->filter_lut.lim_lut[L];
+
+ s->dsp.loop_filter_8[0][1](ptr + ls * 4 + 8 * bytesperpixel, ls, E, I, H);
+ }
+ }
+ }
+ if (ss_v) {
+ if (y & 1)
+ lvl += 16;
+ } else {
+ lvl += 8;
+ }
+ }
+}
+
+static void loopfilter_sb(AVCodecContext *ctx, struct VP9Filter *lflvl,
+ int row, int col, ptrdiff_t yoff, ptrdiff_t uvoff)
+{
+ VP9Context *s = ctx->priv_data;
+ AVFrame *f = s->s.frames[CUR_FRAME].tf.f;
+ uint8_t *dst = f->data[0] + yoff;
+ ptrdiff_t ls_y = f->linesize[0], ls_uv = f->linesize[1];
+ uint8_t (*uv_masks)[8][4] = lflvl->mask[s->ss_h | s->ss_v];
+ int p;
+
+ // FIXME in how far can we interleave the v/h loopfilter calls? E.g.
+ // if you think of them as acting on a 8x8 block max, we can interleave
+ // each v/h within the single x loop, but that only works if we work on
+ // 8 pixel blocks, and we won't always do that (we want at least 16px
+ // to use SSE2 optimizations, perhaps 32 for AVX2)
+
+ filter_plane_cols(s, col, 0, 0, lflvl->level, lflvl->mask[0][0], dst, ls_y);
+ filter_plane_rows(s, row, 0, 0, lflvl->level, lflvl->mask[0][1], dst, ls_y);
+
+ for (p = 0; p < 2; p++) {
+ dst = f->data[1 + p] + uvoff;
+ filter_plane_cols(s, col, s->ss_h, s->ss_v, lflvl->level, uv_masks[0], dst, ls_uv);
+ filter_plane_rows(s, row, s->ss_h, s->ss_v, lflvl->level, uv_masks[1], dst, ls_uv);
+ }
+}
+
+static void set_tile_offset(int *start, int *end, int idx, int log2_n, int n)
+{
+ int sb_start = ( idx * n) >> log2_n;
+ int sb_end = ((idx + 1) * n) >> log2_n;
+ *start = FFMIN(sb_start, n) << 3;
+ *end = FFMIN(sb_end, n) << 3;
+}
+
+static av_always_inline void adapt_prob(uint8_t *p, unsigned ct0, unsigned ct1,
+ int max_count, int update_factor)
+{
+ unsigned ct = ct0 + ct1, p2, p1;
+
+ if (!ct)
+ return;
+
+ update_factor = FASTDIV(update_factor * FFMIN(ct, max_count), max_count);
+ p1 = *p;
+ p2 = ((((int64_t) ct0) << 8) + (ct >> 1)) / ct;
+ p2 = av_clip(p2, 1, 255);
+
+ // (p1 * (256 - update_factor) + p2 * update_factor + 128) >> 8
+ *p = p1 + (((p2 - p1) * update_factor + 128) >> 8);
+}
+
+static void adapt_probs(VP9Context *s)
+{
+ int i, j, k, l, m;
+ prob_context *p = &s->prob_ctx[s->s.h.framectxid].p;
+ int uf = (s->s.h.keyframe || s->s.h.intraonly || !s->last_keyframe) ? 112 : 128;
+
+ // coefficients
+ for (i = 0; i < 4; i++)
+ for (j = 0; j < 2; j++)
+ for (k = 0; k < 2; k++)
+ for (l = 0; l < 6; l++)
+ for (m = 0; m < 6; m++) {
+ uint8_t *pp = s->prob_ctx[s->s.h.framectxid].coef[i][j][k][l][m];
+ unsigned *e = s->counts.eob[i][j][k][l][m];
+ unsigned *c = s->counts.coef[i][j][k][l][m];
+
+ if (l == 0 && m >= 3) // dc only has 3 pt
+ break;
+
+ adapt_prob(&pp[0], e[0], e[1], 24, uf);
+ adapt_prob(&pp[1], c[0], c[1] + c[2], 24, uf);
+ adapt_prob(&pp[2], c[1], c[2], 24, uf);
+ }
+
+ if (s->s.h.keyframe || s->s.h.intraonly) {
+ memcpy(p->skip, s->prob.p.skip, sizeof(p->skip));
+ memcpy(p->tx32p, s->prob.p.tx32p, sizeof(p->tx32p));
+ memcpy(p->tx16p, s->prob.p.tx16p, sizeof(p->tx16p));
+ memcpy(p->tx8p, s->prob.p.tx8p, sizeof(p->tx8p));
+ return;
+ }
+
+ // skip flag
+ for (i = 0; i < 3; i++)
+ adapt_prob(&p->skip[i], s->counts.skip[i][0], s->counts.skip[i][1], 20, 128);
+
+ // intra/inter flag
+ for (i = 0; i < 4; i++)
+ adapt_prob(&p->intra[i], s->counts.intra[i][0], s->counts.intra[i][1], 20, 128);
+
+ // comppred flag
+ if (s->s.h.comppredmode == PRED_SWITCHABLE) {
+ for (i = 0; i < 5; i++)
+ adapt_prob(&p->comp[i], s->counts.comp[i][0], s->counts.comp[i][1], 20, 128);
+ }
+
+ // reference frames
+ if (s->s.h.comppredmode != PRED_SINGLEREF) {
+ for (i = 0; i < 5; i++)
+ adapt_prob(&p->comp_ref[i], s->counts.comp_ref[i][0],
+ s->counts.comp_ref[i][1], 20, 128);
+ }
+
+ if (s->s.h.comppredmode != PRED_COMPREF) {
+ for (i = 0; i < 5; i++) {
+ uint8_t *pp = p->single_ref[i];
+ unsigned (*c)[2] = s->counts.single_ref[i];
+
+ adapt_prob(&pp[0], c[0][0], c[0][1], 20, 128);
+ adapt_prob(&pp[1], c[1][0], c[1][1], 20, 128);
+ }
+ }
+
+ // block partitioning
+ for (i = 0; i < 4; i++)
+ for (j = 0; j < 4; j++) {
+ uint8_t *pp = p->partition[i][j];
+ unsigned *c = s->counts.partition[i][j];
+
+ adapt_prob(&pp[0], c[0], c[1] + c[2] + c[3], 20, 128);
+ adapt_prob(&pp[1], c[1], c[2] + c[3], 20, 128);
+ adapt_prob(&pp[2], c[2], c[3], 20, 128);
+ }
+
+ // tx size
+ if (s->s.h.txfmmode == TX_SWITCHABLE) {
+ for (i = 0; i < 2; i++) {
+ unsigned *c16 = s->counts.tx16p[i], *c32 = s->counts.tx32p[i];
+
+ adapt_prob(&p->tx8p[i], s->counts.tx8p[i][0], s->counts.tx8p[i][1], 20, 128);
+ adapt_prob(&p->tx16p[i][0], c16[0], c16[1] + c16[2], 20, 128);
+ adapt_prob(&p->tx16p[i][1], c16[1], c16[2], 20, 128);
+ adapt_prob(&p->tx32p[i][0], c32[0], c32[1] + c32[2] + c32[3], 20, 128);
+ adapt_prob(&p->tx32p[i][1], c32[1], c32[2] + c32[3], 20, 128);
+ adapt_prob(&p->tx32p[i][2], c32[2], c32[3], 20, 128);
+ }
+ }
+
+ // interpolation filter
+ if (s->s.h.filtermode == FILTER_SWITCHABLE) {
+ for (i = 0; i < 4; i++) {
+ uint8_t *pp = p->filter[i];
+ unsigned *c = s->counts.filter[i];
+
+ adapt_prob(&pp[0], c[0], c[1] + c[2], 20, 128);
+ adapt_prob(&pp[1], c[1], c[2], 20, 128);
+ }
+ }
+
+ // inter modes
+ for (i = 0; i < 7; i++) {
+ uint8_t *pp = p->mv_mode[i];
+ unsigned *c = s->counts.mv_mode[i];
+
+ adapt_prob(&pp[0], c[2], c[1] + c[0] + c[3], 20, 128);
+ adapt_prob(&pp[1], c[0], c[1] + c[3], 20, 128);
+ adapt_prob(&pp[2], c[1], c[3], 20, 128);
+ }
+
+ // mv joints
+ {
+ uint8_t *pp = p->mv_joint;
+ unsigned *c = s->counts.mv_joint;
+
+ adapt_prob(&pp[0], c[0], c[1] + c[2] + c[3], 20, 128);
+ adapt_prob(&pp[1], c[1], c[2] + c[3], 20, 128);
+ adapt_prob(&pp[2], c[2], c[3], 20, 128);
+ }
+
+ // mv components
+ for (i = 0; i < 2; i++) {
+ uint8_t *pp;
+ unsigned *c, (*c2)[2], sum;
+
+ adapt_prob(&p->mv_comp[i].sign, s->counts.mv_comp[i].sign[0],
+ s->counts.mv_comp[i].sign[1], 20, 128);
+
+ pp = p->mv_comp[i].classes;
+ c = s->counts.mv_comp[i].classes;
+ sum = c[1] + c[2] + c[3] + c[4] + c[5] + c[6] + c[7] + c[8] + c[9] + c[10];
+ adapt_prob(&pp[0], c[0], sum, 20, 128);
+ sum -= c[1];
+ adapt_prob(&pp[1], c[1], sum, 20, 128);
+ sum -= c[2] + c[3];
+ adapt_prob(&pp[2], c[2] + c[3], sum, 20, 128);
+ adapt_prob(&pp[3], c[2], c[3], 20, 128);
+ sum -= c[4] + c[5];
+ adapt_prob(&pp[4], c[4] + c[5], sum, 20, 128);
+ adapt_prob(&pp[5], c[4], c[5], 20, 128);
+ sum -= c[6];
+ adapt_prob(&pp[6], c[6], sum, 20, 128);
+ adapt_prob(&pp[7], c[7] + c[8], c[9] + c[10], 20, 128);
+ adapt_prob(&pp[8], c[7], c[8], 20, 128);
+ adapt_prob(&pp[9], c[9], c[10], 20, 128);
+
+ adapt_prob(&p->mv_comp[i].class0, s->counts.mv_comp[i].class0[0],
+ s->counts.mv_comp[i].class0[1], 20, 128);
+ pp = p->mv_comp[i].bits;
+ c2 = s->counts.mv_comp[i].bits;
+ for (j = 0; j < 10; j++)
+ adapt_prob(&pp[j], c2[j][0], c2[j][1], 20, 128);
+
+ for (j = 0; j < 2; j++) {
+ pp = p->mv_comp[i].class0_fp[j];
+ c = s->counts.mv_comp[i].class0_fp[j];
+ adapt_prob(&pp[0], c[0], c[1] + c[2] + c[3], 20, 128);
+ adapt_prob(&pp[1], c[1], c[2] + c[3], 20, 128);
+ adapt_prob(&pp[2], c[2], c[3], 20, 128);
+ }
+ pp = p->mv_comp[i].fp;
+ c = s->counts.mv_comp[i].fp;
+ adapt_prob(&pp[0], c[0], c[1] + c[2] + c[3], 20, 128);
+ adapt_prob(&pp[1], c[1], c[2] + c[3], 20, 128);
+ adapt_prob(&pp[2], c[2], c[3], 20, 128);
+
+ if (s->s.h.highprecisionmvs) {
+ adapt_prob(&p->mv_comp[i].class0_hp, s->counts.mv_comp[i].class0_hp[0],
+ s->counts.mv_comp[i].class0_hp[1], 20, 128);
+ adapt_prob(&p->mv_comp[i].hp, s->counts.mv_comp[i].hp[0],
+ s->counts.mv_comp[i].hp[1], 20, 128);
+ }
+ }
+
+ // y intra modes
+ for (i = 0; i < 4; i++) {
+ uint8_t *pp = p->y_mode[i];
+ unsigned *c = s->counts.y_mode[i], sum, s2;
+
+ sum = c[0] + c[1] + c[3] + c[4] + c[5] + c[6] + c[7] + c[8] + c[9];
+ adapt_prob(&pp[0], c[DC_PRED], sum, 20, 128);
+ sum -= c[TM_VP8_PRED];
+ adapt_prob(&pp[1], c[TM_VP8_PRED], sum, 20, 128);
+ sum -= c[VERT_PRED];
+ adapt_prob(&pp[2], c[VERT_PRED], sum, 20, 128);
+ s2 = c[HOR_PRED] + c[DIAG_DOWN_RIGHT_PRED] + c[VERT_RIGHT_PRED];
+ sum -= s2;
+ adapt_prob(&pp[3], s2, sum, 20, 128);
+ s2 -= c[HOR_PRED];
+ adapt_prob(&pp[4], c[HOR_PRED], s2, 20, 128);
+ adapt_prob(&pp[5], c[DIAG_DOWN_RIGHT_PRED], c[VERT_RIGHT_PRED], 20, 128);
+ sum -= c[DIAG_DOWN_LEFT_PRED];
+ adapt_prob(&pp[6], c[DIAG_DOWN_LEFT_PRED], sum, 20, 128);
+ sum -= c[VERT_LEFT_PRED];
+ adapt_prob(&pp[7], c[VERT_LEFT_PRED], sum, 20, 128);
+ adapt_prob(&pp[8], c[HOR_DOWN_PRED], c[HOR_UP_PRED], 20, 128);
+ }
+
+ // uv intra modes
+ for (i = 0; i < 10; i++) {
+ uint8_t *pp = p->uv_mode[i];
+ unsigned *c = s->counts.uv_mode[i], sum, s2;
+
+ sum = c[0] + c[1] + c[3] + c[4] + c[5] + c[6] + c[7] + c[8] + c[9];
+ adapt_prob(&pp[0], c[DC_PRED], sum, 20, 128);
+ sum -= c[TM_VP8_PRED];
+ adapt_prob(&pp[1], c[TM_VP8_PRED], sum, 20, 128);
+ sum -= c[VERT_PRED];
+ adapt_prob(&pp[2], c[VERT_PRED], sum, 20, 128);
+ s2 = c[HOR_PRED] + c[DIAG_DOWN_RIGHT_PRED] + c[VERT_RIGHT_PRED];
+ sum -= s2;
+ adapt_prob(&pp[3], s2, sum, 20, 128);
+ s2 -= c[HOR_PRED];
+ adapt_prob(&pp[4], c[HOR_PRED], s2, 20, 128);
+ adapt_prob(&pp[5], c[DIAG_DOWN_RIGHT_PRED], c[VERT_RIGHT_PRED], 20, 128);
+ sum -= c[DIAG_DOWN_LEFT_PRED];
+ adapt_prob(&pp[6], c[DIAG_DOWN_LEFT_PRED], sum, 20, 128);
+ sum -= c[VERT_LEFT_PRED];
+ adapt_prob(&pp[7], c[VERT_LEFT_PRED], sum, 20, 128);
+ adapt_prob(&pp[8], c[HOR_DOWN_PRED], c[HOR_UP_PRED], 20, 128);
+ }
+}
+
+static void free_buffers(VP9Context *s)
+{
+ av_freep(&s->intra_pred_data[0]);
+ av_freep(&s->b_base);
+ av_freep(&s->block_base);
+}
+
+static av_cold int vp9_decode_free(AVCodecContext *ctx)
+{
+ VP9Context *s = ctx->priv_data;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ if (s->s.frames[i].tf.f->buf[0])
+ vp9_unref_frame(ctx, &s->s.frames[i]);
+ av_frame_free(&s->s.frames[i].tf.f);
+ }
+ for (i = 0; i < 8; i++) {
+ if (s->s.refs[i].f->buf[0])
+ ff_thread_release_buffer(ctx, &s->s.refs[i]);
+ av_frame_free(&s->s.refs[i].f);
+ if (s->next_refs[i].f->buf[0])
+ ff_thread_release_buffer(ctx, &s->next_refs[i]);
+ av_frame_free(&s->next_refs[i].f);
+ }
+ free_buffers(s);
+ av_freep(&s->c_b);
+ s->c_b_size = 0;
+
+ return 0;
+}
+
+
+static int vp9_decode_frame(AVCodecContext *ctx, void *frame,
+ int *got_frame, AVPacket *pkt)
+{
+ const uint8_t *data = pkt->data;
+ int size = pkt->size;
+ VP9Context *s = ctx->priv_data;
+ int res, tile_row, tile_col, i, ref, row, col;
+ int retain_segmap_ref = s->s.frames[REF_FRAME_SEGMAP].segmentation_map &&
+ (!s->s.h.segmentation.enabled || !s->s.h.segmentation.update_map);
+ ptrdiff_t yoff, uvoff, ls_y, ls_uv;
+ AVFrame *f;
+ int bytesperpixel;
+
+ if ((res = decode_frame_header(ctx, data, size, &ref)) < 0) {
+ return res;
+ } else if (res == 0) {
+ if (!s->s.refs[ref].f->buf[0]) {
+ av_log(ctx, AV_LOG_ERROR, "Requested reference %d not available\n", ref);
+ return AVERROR_INVALIDDATA;
+ }
+ if ((res = av_frame_ref(frame, s->s.refs[ref].f)) < 0)
+ return res;
+ ((AVFrame *)frame)->pkt_pts = pkt->pts;
+ ((AVFrame *)frame)->pkt_dts = pkt->dts;
+ for (i = 0; i < 8; i++) {
+ if (s->next_refs[i].f->buf[0])
+ ff_thread_release_buffer(ctx, &s->next_refs[i]);
+ if (s->s.refs[i].f->buf[0] &&
+ (res = ff_thread_ref_frame(&s->next_refs[i], &s->s.refs[i])) < 0)
+ return res;
+ }
+ *got_frame = 1;
+ return pkt->size;
+ }
+ data += res;
+ size -= res;
+
+ if (!retain_segmap_ref || s->s.h.keyframe || s->s.h.intraonly) {
+ if (s->s.frames[REF_FRAME_SEGMAP].tf.f->buf[0])
+ vp9_unref_frame(ctx, &s->s.frames[REF_FRAME_SEGMAP]);
+ if (!s->s.h.keyframe && !s->s.h.intraonly && !s->s.h.errorres && s->s.frames[CUR_FRAME].tf.f->buf[0] &&
+ (res = vp9_ref_frame(ctx, &s->s.frames[REF_FRAME_SEGMAP], &s->s.frames[CUR_FRAME])) < 0)
+ return res;
+ }
+ if (s->s.frames[REF_FRAME_MVPAIR].tf.f->buf[0])
+ vp9_unref_frame(ctx, &s->s.frames[REF_FRAME_MVPAIR]);
+ if (!s->s.h.intraonly && !s->s.h.keyframe && !s->s.h.errorres && s->s.frames[CUR_FRAME].tf.f->buf[0] &&
+ (res = vp9_ref_frame(ctx, &s->s.frames[REF_FRAME_MVPAIR], &s->s.frames[CUR_FRAME])) < 0)
+ return res;
+ if (s->s.frames[CUR_FRAME].tf.f->buf[0])
+ vp9_unref_frame(ctx, &s->s.frames[CUR_FRAME]);
+ if ((res = vp9_alloc_frame(ctx, &s->s.frames[CUR_FRAME])) < 0)
+ return res;
+ f = s->s.frames[CUR_FRAME].tf.f;
+ f->key_frame = s->s.h.keyframe;
+ f->pict_type = (s->s.h.keyframe || s->s.h.intraonly) ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
+ ls_y = f->linesize[0];
+ ls_uv =f->linesize[1];
+
+ if (s->s.frames[REF_FRAME_SEGMAP].tf.f->buf[0] &&
+ (s->s.frames[REF_FRAME_MVPAIR].tf.f->width != s->s.frames[CUR_FRAME].tf.f->width ||
+ s->s.frames[REF_FRAME_MVPAIR].tf.f->height != s->s.frames[CUR_FRAME].tf.f->height)) {
+ vp9_unref_frame(ctx, &s->s.frames[REF_FRAME_SEGMAP]);
+ }
+
+ // ref frame setup
+ for (i = 0; i < 8; i++) {
+ if (s->next_refs[i].f->buf[0])
+ ff_thread_release_buffer(ctx, &s->next_refs[i]);
+ if (s->s.h.refreshrefmask & (1 << i)) {
+ res = ff_thread_ref_frame(&s->next_refs[i], &s->s.frames[CUR_FRAME].tf);
+ } else if (s->s.refs[i].f->buf[0]) {
+ res = ff_thread_ref_frame(&s->next_refs[i], &s->s.refs[i]);
+ }
+ if (res < 0)
+ return res;
+ }
+
+ if (ctx->hwaccel) {
+ res = ctx->hwaccel->start_frame(ctx, NULL, 0);
+ if (res < 0)
+ return res;
+ res = ctx->hwaccel->decode_slice(ctx, pkt->data, pkt->size);
+ if (res < 0)
+ return res;
+ res = ctx->hwaccel->end_frame(ctx);
+ if (res < 0)
+ return res;
+ goto finish;
+ }
+
+ // main tile decode loop
+ bytesperpixel = s->bytesperpixel;
+ memset(s->above_partition_ctx, 0, s->cols);
+ memset(s->above_skip_ctx, 0, s->cols);
+ if (s->s.h.keyframe || s->s.h.intraonly) {
+ memset(s->above_mode_ctx, DC_PRED, s->cols * 2);
+ } else {
+ memset(s->above_mode_ctx, NEARESTMV, s->cols);
+ }
+ memset(s->above_y_nnz_ctx, 0, s->sb_cols * 16);
+ memset(s->above_uv_nnz_ctx[0], 0, s->sb_cols * 16 >> s->ss_h);
+ memset(s->above_uv_nnz_ctx[1], 0, s->sb_cols * 16 >> s->ss_h);
+ memset(s->above_segpred_ctx, 0, s->cols);
+ s->pass = s->s.frames[CUR_FRAME].uses_2pass =
+ ctx->active_thread_type == FF_THREAD_FRAME && s->s.h.refreshctx && !s->s.h.parallelmode;
+ if ((res = update_block_buffers(ctx)) < 0) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Failed to allocate block buffers\n");
+ return res;
+ }
+ if (s->s.h.refreshctx && s->s.h.parallelmode) {
+ int j, k, l, m;
+
+ for (i = 0; i < 4; i++) {
+ for (j = 0; j < 2; j++)
+ for (k = 0; k < 2; k++)
+ for (l = 0; l < 6; l++)
+ for (m = 0; m < 6; m++)
+ memcpy(s->prob_ctx[s->s.h.framectxid].coef[i][j][k][l][m],
+ s->prob.coef[i][j][k][l][m], 3);
+ if (s->s.h.txfmmode == i)
+ break;
+ }
+ s->prob_ctx[s->s.h.framectxid].p = s->prob.p;
+ ff_thread_finish_setup(ctx);
+ } else if (!s->s.h.refreshctx) {
+ ff_thread_finish_setup(ctx);
+ }
+
+ do {
+ yoff = uvoff = 0;
+ s->b = s->b_base;
+ s->block = s->block_base;
+ s->uvblock[0] = s->uvblock_base[0];
+ s->uvblock[1] = s->uvblock_base[1];
+ s->eob = s->eob_base;
+ s->uveob[0] = s->uveob_base[0];
+ s->uveob[1] = s->uveob_base[1];
+
+ for (tile_row = 0; tile_row < s->s.h.tiling.tile_rows; tile_row++) {
+ set_tile_offset(&s->tile_row_start, &s->tile_row_end,
+ tile_row, s->s.h.tiling.log2_tile_rows, s->sb_rows);
+ if (s->pass != 2) {
+ for (tile_col = 0; tile_col < s->s.h.tiling.tile_cols; tile_col++) {
+ int64_t tile_size;
+
+ if (tile_col == s->s.h.tiling.tile_cols - 1 &&
+ tile_row == s->s.h.tiling.tile_rows - 1) {
+ tile_size = size;
+ } else {
+ tile_size = AV_RB32(data);
+ data += 4;
+ size -= 4;
+ }
+ if (tile_size > size) {
+ ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, INT_MAX, 0);
+ return AVERROR_INVALIDDATA;
+ }
+ ff_vp56_init_range_decoder(&s->c_b[tile_col], data, tile_size);
+ if (vp56_rac_get_prob_branchy(&s->c_b[tile_col], 128)) { // marker bit
+ ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, INT_MAX, 0);
+ return AVERROR_INVALIDDATA;
+ }
+ data += tile_size;
+ size -= tile_size;
+ }
+ }
+
+ for (row = s->tile_row_start; row < s->tile_row_end;
+ row += 8, yoff += ls_y * 64, uvoff += ls_uv * 64 >> s->ss_v) {
+ struct VP9Filter *lflvl_ptr = s->lflvl;
+ ptrdiff_t yoff2 = yoff, uvoff2 = uvoff;
+
+ for (tile_col = 0; tile_col < s->s.h.tiling.tile_cols; tile_col++) {
+ set_tile_offset(&s->tile_col_start, &s->tile_col_end,
+ tile_col, s->s.h.tiling.log2_tile_cols, s->sb_cols);
+
+ if (s->pass != 2) {
+ memset(s->left_partition_ctx, 0, 8);
+ memset(s->left_skip_ctx, 0, 8);
+ if (s->s.h.keyframe || s->s.h.intraonly) {
+ memset(s->left_mode_ctx, DC_PRED, 16);
+ } else {
+ memset(s->left_mode_ctx, NEARESTMV, 8);
+ }
+ memset(s->left_y_nnz_ctx, 0, 16);
+ memset(s->left_uv_nnz_ctx, 0, 32);
+ memset(s->left_segpred_ctx, 0, 8);
+
+ memcpy(&s->c, &s->c_b[tile_col], sizeof(s->c));
+ }
+
+ for (col = s->tile_col_start;
+ col < s->tile_col_end;
+ col += 8, yoff2 += 64 * bytesperpixel,
+ uvoff2 += 64 * bytesperpixel >> s->ss_h, lflvl_ptr++) {
+ // FIXME integrate with lf code (i.e. zero after each
+ // use, similar to invtxfm coefficients, or similar)
+ if (s->pass != 1) {
+ memset(lflvl_ptr->mask, 0, sizeof(lflvl_ptr->mask));
+ }
+
+ if (s->pass == 2) {
+ decode_sb_mem(ctx, row, col, lflvl_ptr,
+ yoff2, uvoff2, BL_64X64);
+ } else {
+ decode_sb(ctx, row, col, lflvl_ptr,
+ yoff2, uvoff2, BL_64X64);
+ }
+ }
+ if (s->pass != 2) {
+ memcpy(&s->c_b[tile_col], &s->c, sizeof(s->c));
+ }
+ }
+
+ if (s->pass == 1) {
+ continue;
+ }
+
+ // backup pre-loopfilter reconstruction data for intra
+ // prediction of next row of sb64s
+ if (row + 8 < s->rows) {
+ memcpy(s->intra_pred_data[0],
+ f->data[0] + yoff + 63 * ls_y,
+ 8 * s->cols * bytesperpixel);
+ memcpy(s->intra_pred_data[1],
+ f->data[1] + uvoff + ((64 >> s->ss_v) - 1) * ls_uv,
+ 8 * s->cols * bytesperpixel >> s->ss_h);
+ memcpy(s->intra_pred_data[2],
+ f->data[2] + uvoff + ((64 >> s->ss_v) - 1) * ls_uv,
+ 8 * s->cols * bytesperpixel >> s->ss_h);
+ }
+
+ // loopfilter one row
+ if (s->s.h.filter.level) {
+ yoff2 = yoff;
+ uvoff2 = uvoff;
+ lflvl_ptr = s->lflvl;
+ for (col = 0; col < s->cols;
+ col += 8, yoff2 += 64 * bytesperpixel,
+ uvoff2 += 64 * bytesperpixel >> s->ss_h, lflvl_ptr++) {
+ loopfilter_sb(ctx, lflvl_ptr, row, col, yoff2, uvoff2);
+ }
+ }
+
+ // FIXME maybe we can make this more finegrained by running the
+ // loopfilter per-block instead of after each sbrow
+ // In fact that would also make intra pred left preparation easier?
+ ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, row >> 3, 0);
+ }
+ }
+
+ if (s->pass < 2 && s->s.h.refreshctx && !s->s.h.parallelmode) {
+ adapt_probs(s);
+ ff_thread_finish_setup(ctx);
+ }
+ } while (s->pass++ == 1);
+ ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, INT_MAX, 0);
+
+finish:
+ // ref frame setup
+ for (i = 0; i < 8; i++) {
+ if (s->s.refs[i].f->buf[0])
+ ff_thread_release_buffer(ctx, &s->s.refs[i]);
+ if (s->next_refs[i].f->buf[0] &&
+ (res = ff_thread_ref_frame(&s->s.refs[i], &s->next_refs[i])) < 0)
+ return res;
+ }
+
+ if (!s->s.h.invisible) {
+ if ((res = av_frame_ref(frame, s->s.frames[CUR_FRAME].tf.f)) < 0)
+ return res;
+ *got_frame = 1;
+ }
+
+ return pkt->size;
+}
+
+static void vp9_decode_flush(AVCodecContext *ctx)
+{
+ VP9Context *s = ctx->priv_data;
+ int i;
+
+ for (i = 0; i < 3; i++)
+ vp9_unref_frame(ctx, &s->s.frames[i]);
+ for (i = 0; i < 8; i++)
+ ff_thread_release_buffer(ctx, &s->s.refs[i]);
+}
+
+static int init_frames(AVCodecContext *ctx)
+{
+ VP9Context *s = ctx->priv_data;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ s->s.frames[i].tf.f = av_frame_alloc();
+ if (!s->s.frames[i].tf.f) {
+ vp9_decode_free(ctx);
+ av_log(ctx, AV_LOG_ERROR, "Failed to allocate frame buffer %d\n", i);
+ return AVERROR(ENOMEM);
+ }
+ }
+ for (i = 0; i < 8; i++) {
+ s->s.refs[i].f = av_frame_alloc();
+ s->next_refs[i].f = av_frame_alloc();
+ if (!s->s.refs[i].f || !s->next_refs[i].f) {
+ vp9_decode_free(ctx);
+ av_log(ctx, AV_LOG_ERROR, "Failed to allocate frame buffer %d\n", i);
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ return 0;
+}
+
+static av_cold int vp9_decode_init(AVCodecContext *ctx)
+{
+ VP9Context *s = ctx->priv_data;
+
+ ctx->internal->allocate_progress = 1;
+ s->last_bpp = 0;
+ s->s.h.filter.sharpness = -1;
+
+ return init_frames(ctx);
+}
+
+#if HAVE_THREADS
+static av_cold int vp9_decode_init_thread_copy(AVCodecContext *avctx)
+{
+ return init_frames(avctx);
+}
+
+static int vp9_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
+{
+ int i, res;
+ VP9Context *s = dst->priv_data, *ssrc = src->priv_data;
+
+ for (i = 0; i < 3; i++) {
+ if (s->s.frames[i].tf.f->buf[0])
+ vp9_unref_frame(dst, &s->s.frames[i]);
+ if (ssrc->s.frames[i].tf.f->buf[0]) {
+ if ((res = vp9_ref_frame(dst, &s->s.frames[i], &ssrc->s.frames[i])) < 0)
+ return res;
+ }
+ }
+ for (i = 0; i < 8; i++) {
+ if (s->s.refs[i].f->buf[0])
+ ff_thread_release_buffer(dst, &s->s.refs[i]);
+ if (ssrc->next_refs[i].f->buf[0]) {
+ if ((res = ff_thread_ref_frame(&s->s.refs[i], &ssrc->next_refs[i])) < 0)
+ return res;
+ }
+ }
+
+ s->s.h.invisible = ssrc->s.h.invisible;
+ s->s.h.keyframe = ssrc->s.h.keyframe;
+ s->s.h.intraonly = ssrc->s.h.intraonly;
+ s->ss_v = ssrc->ss_v;
+ s->ss_h = ssrc->ss_h;
+ s->s.h.segmentation.enabled = ssrc->s.h.segmentation.enabled;
+ s->s.h.segmentation.update_map = ssrc->s.h.segmentation.update_map;
+ s->s.h.segmentation.absolute_vals = ssrc->s.h.segmentation.absolute_vals;
+ s->bytesperpixel = ssrc->bytesperpixel;
+ s->gf_fmt = ssrc->gf_fmt;
+ s->w = ssrc->w;
+ s->h = ssrc->h;
+ s->bpp = ssrc->bpp;
+ s->bpp_index = ssrc->bpp_index;
+ s->pix_fmt = ssrc->pix_fmt;
+ memcpy(&s->prob_ctx, &ssrc->prob_ctx, sizeof(s->prob_ctx));
+ memcpy(&s->s.h.lf_delta, &ssrc->s.h.lf_delta, sizeof(s->s.h.lf_delta));
+ memcpy(&s->s.h.segmentation.feat, &ssrc->s.h.segmentation.feat,
+ sizeof(s->s.h.segmentation.feat));
+
+ return 0;
+}
+#endif
+
+AVCodec ff_vp9_decoder = {
+ .name = "vp9",
+ .long_name = NULL_IF_CONFIG_SMALL("Google VP9"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_VP9,
+ .priv_data_size = sizeof(VP9Context),
+ .init = vp9_decode_init,
+ .close = vp9_decode_free,
+ .decode = vp9_decode_frame,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
+ .flush = vp9_decode_flush,
+ .init_thread_copy = ONLY_IF_THREADS_ENABLED(vp9_decode_init_thread_copy),
+ .update_thread_context = ONLY_IF_THREADS_ENABLED(vp9_decode_update_thread_context),
+ .profiles = NULL_IF_CONFIG_SMALL(ff_vp9_profiles),
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 03:58:21 +0000