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-rw-r--r--media/ffvpx/libavcodec/utils.c4230
1 files changed, 4230 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/utils.c b/media/ffvpx/libavcodec/utils.c
new file mode 100644
index 000000000..f7adb525f
--- /dev/null
+++ b/media/ffvpx/libavcodec/utils.c
@@ -0,0 +1,4230 @@
+/*
+ * utils for libavcodec
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * utils.
+ */
+
+#include "config.h"
+#include "libavutil/atomic.h"
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/bprint.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/crc.h"
+#include "libavutil/frame.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/internal.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem_internal.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/dict.h"
+#include "libavutil/thread.h"
+#include "avcodec.h"
+#include "libavutil/opt.h"
+#include "me_cmp.h"
+#include "mpegvideo.h"
+#include "thread.h"
+#include "frame_thread_encoder.h"
+#include "internal.h"
+#include "raw.h"
+#include "bytestream.h"
+#include "version.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <float.h>
+#if CONFIG_ICONV
+# include <iconv.h>
+#endif
+
+#include "libavutil/ffversion.h"
+const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
+static int default_lockmgr_cb(void **arg, enum AVLockOp op)
+{
+ void * volatile * mutex = arg;
+ int err;
+
+ switch (op) {
+ case AV_LOCK_CREATE:
+ return 0;
+ case AV_LOCK_OBTAIN:
+ if (!*mutex) {
+ pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
+ if (!tmp)
+ return AVERROR(ENOMEM);
+ if ((err = pthread_mutex_init(tmp, NULL))) {
+ av_free(tmp);
+ return AVERROR(err);
+ }
+ if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
+ pthread_mutex_destroy(tmp);
+ av_free(tmp);
+ }
+ }
+
+ if ((err = pthread_mutex_lock(*mutex)))
+ return AVERROR(err);
+
+ return 0;
+ case AV_LOCK_RELEASE:
+ if ((err = pthread_mutex_unlock(*mutex)))
+ return AVERROR(err);
+
+ return 0;
+ case AV_LOCK_DESTROY:
+ if (*mutex)
+ pthread_mutex_destroy(*mutex);
+ av_free(*mutex);
+ avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
+ return 0;
+ }
+ return 1;
+}
+static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
+#else
+static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
+#endif
+
+
+volatile int ff_avcodec_locked;
+static int volatile entangled_thread_counter = 0;
+static void *codec_mutex;
+static void *avformat_mutex;
+
+void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
+{
+ uint8_t **p = ptr;
+ if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_freep(p);
+ *size = 0;
+ return;
+ }
+ if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
+ memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
+{
+ uint8_t **p = ptr;
+ if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_freep(p);
+ *size = 0;
+ return;
+ }
+ if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
+ memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+/* encoder management */
+static AVCodec *first_avcodec = NULL;
+static AVCodec **last_avcodec = &first_avcodec;
+
+AVCodec *av_codec_next(const AVCodec *c)
+{
+ if (c)
+ return c->next;
+ else
+ return first_avcodec;
+}
+
+static av_cold void avcodec_init(void)
+{
+ static int initialized = 0;
+
+ if (initialized != 0)
+ return;
+ initialized = 1;
+
+ if (CONFIG_ME_CMP)
+ ff_me_cmp_init_static();
+}
+
+int av_codec_is_encoder(const AVCodec *codec)
+{
+ return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
+}
+
+int av_codec_is_decoder(const AVCodec *codec)
+{
+ return codec && (codec->decode || codec->send_packet);
+}
+
+av_cold void avcodec_register(AVCodec *codec)
+{
+ AVCodec **p;
+ avcodec_init();
+ p = last_avcodec;
+ codec->next = NULL;
+
+ while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
+ p = &(*p)->next;
+ last_avcodec = &codec->next;
+
+ if (codec->init_static_data)
+ codec->init_static_data(codec);
+}
+
+#if FF_API_EMU_EDGE
+unsigned avcodec_get_edge_width(void)
+{
+ return EDGE_WIDTH;
+}
+#endif
+
+#if FF_API_SET_DIMENSIONS
+void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
+{
+ int ret = ff_set_dimensions(s, width, height);
+ if (ret < 0) {
+ av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height);
+ }
+}
+#endif
+
+int ff_set_dimensions(AVCodecContext *s, int width, int height)
+{
+ int ret = av_image_check_size(width, height, 0, s);
+
+ if (ret < 0)
+ width = height = 0;
+
+ s->coded_width = width;
+ s->coded_height = height;
+ s->width = AV_CEIL_RSHIFT(width, s->lowres);
+ s->height = AV_CEIL_RSHIFT(height, s->lowres);
+
+ return ret;
+}
+
+int ff_set_sar(AVCodecContext *avctx, AVRational sar)
+{
+ int ret = av_image_check_sar(avctx->width, avctx->height, sar);
+
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
+ sar.num, sar.den);
+ avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
+ return ret;
+ } else {
+ avctx->sample_aspect_ratio = sar;
+ }
+ return 0;
+}
+
+int ff_side_data_update_matrix_encoding(AVFrame *frame,
+ enum AVMatrixEncoding matrix_encoding)
+{
+ AVFrameSideData *side_data;
+ enum AVMatrixEncoding *data;
+
+ side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
+ if (!side_data)
+ side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
+ sizeof(enum AVMatrixEncoding));
+
+ if (!side_data)
+ return AVERROR(ENOMEM);
+
+ data = (enum AVMatrixEncoding*)side_data->data;
+ *data = matrix_encoding;
+
+ return 0;
+}
+
+void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
+ int linesize_align[AV_NUM_DATA_POINTERS])
+{
+ int i;
+ int w_align = 1;
+ int h_align = 1;
+ AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
+
+ if (desc) {
+ w_align = 1 << desc->log2_chroma_w;
+ h_align = 1 << desc->log2_chroma_h;
+ }
+
+ switch (s->pix_fmt) {
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUYV422:
+ case AV_PIX_FMT_YVYU422:
+ case AV_PIX_FMT_UYVY422:
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV440P:
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_GBRP:
+ case AV_PIX_FMT_GBRAP:
+ case AV_PIX_FMT_GRAY8:
+ case AV_PIX_FMT_GRAY16BE:
+ case AV_PIX_FMT_GRAY16LE:
+ case AV_PIX_FMT_YUVJ420P:
+ case AV_PIX_FMT_YUVJ422P:
+ case AV_PIX_FMT_YUVJ440P:
+ case AV_PIX_FMT_YUVJ444P:
+ case AV_PIX_FMT_YUVA420P:
+ case AV_PIX_FMT_YUVA422P:
+ case AV_PIX_FMT_YUVA444P:
+ case AV_PIX_FMT_YUV420P9LE:
+ case AV_PIX_FMT_YUV420P9BE:
+ case AV_PIX_FMT_YUV420P10LE:
+ case AV_PIX_FMT_YUV420P10BE:
+ case AV_PIX_FMT_YUV420P12LE:
+ case AV_PIX_FMT_YUV420P12BE:
+ case AV_PIX_FMT_YUV420P14LE:
+ case AV_PIX_FMT_YUV420P14BE:
+ case AV_PIX_FMT_YUV420P16LE:
+ case AV_PIX_FMT_YUV420P16BE:
+ case AV_PIX_FMT_YUVA420P9LE:
+ case AV_PIX_FMT_YUVA420P9BE:
+ case AV_PIX_FMT_YUVA420P10LE:
+ case AV_PIX_FMT_YUVA420P10BE:
+ case AV_PIX_FMT_YUVA420P16LE:
+ case AV_PIX_FMT_YUVA420P16BE:
+ case AV_PIX_FMT_YUV422P9LE:
+ case AV_PIX_FMT_YUV422P9BE:
+ case AV_PIX_FMT_YUV422P10LE:
+ case AV_PIX_FMT_YUV422P10BE:
+ case AV_PIX_FMT_YUV422P12LE:
+ case AV_PIX_FMT_YUV422P12BE:
+ case AV_PIX_FMT_YUV422P14LE:
+ case AV_PIX_FMT_YUV422P14BE:
+ case AV_PIX_FMT_YUV422P16LE:
+ case AV_PIX_FMT_YUV422P16BE:
+ case AV_PIX_FMT_YUVA422P9LE:
+ case AV_PIX_FMT_YUVA422P9BE:
+ case AV_PIX_FMT_YUVA422P10LE:
+ case AV_PIX_FMT_YUVA422P10BE:
+ case AV_PIX_FMT_YUVA422P16LE:
+ case AV_PIX_FMT_YUVA422P16BE:
+ case AV_PIX_FMT_YUV440P10LE:
+ case AV_PIX_FMT_YUV440P10BE:
+ case AV_PIX_FMT_YUV440P12LE:
+ case AV_PIX_FMT_YUV440P12BE:
+ case AV_PIX_FMT_YUV444P9LE:
+ case AV_PIX_FMT_YUV444P9BE:
+ case AV_PIX_FMT_YUV444P10LE:
+ case AV_PIX_FMT_YUV444P10BE:
+ case AV_PIX_FMT_YUV444P12LE:
+ case AV_PIX_FMT_YUV444P12BE:
+ case AV_PIX_FMT_YUV444P14LE:
+ case AV_PIX_FMT_YUV444P14BE:
+ case AV_PIX_FMT_YUV444P16LE:
+ case AV_PIX_FMT_YUV444P16BE:
+ case AV_PIX_FMT_YUVA444P9LE:
+ case AV_PIX_FMT_YUVA444P9BE:
+ case AV_PIX_FMT_YUVA444P10LE:
+ case AV_PIX_FMT_YUVA444P10BE:
+ case AV_PIX_FMT_YUVA444P16LE:
+ case AV_PIX_FMT_YUVA444P16BE:
+ case AV_PIX_FMT_GBRP9LE:
+ case AV_PIX_FMT_GBRP9BE:
+ case AV_PIX_FMT_GBRP10LE:
+ case AV_PIX_FMT_GBRP10BE:
+ case AV_PIX_FMT_GBRP12LE:
+ case AV_PIX_FMT_GBRP12BE:
+ case AV_PIX_FMT_GBRP14LE:
+ case AV_PIX_FMT_GBRP14BE:
+ case AV_PIX_FMT_GBRP16LE:
+ case AV_PIX_FMT_GBRP16BE:
+ case AV_PIX_FMT_GBRAP12LE:
+ case AV_PIX_FMT_GBRAP12BE:
+ case AV_PIX_FMT_GBRAP16LE:
+ case AV_PIX_FMT_GBRAP16BE:
+ w_align = 16; //FIXME assume 16 pixel per macroblock
+ h_align = 16 * 2; // interlaced needs 2 macroblocks height
+ break;
+ case AV_PIX_FMT_YUV411P:
+ case AV_PIX_FMT_YUVJ411P:
+ case AV_PIX_FMT_UYYVYY411:
+ w_align = 32;
+ h_align = 16 * 2;
+ break;
+ case AV_PIX_FMT_YUV410P:
+ if (s->codec_id == AV_CODEC_ID_SVQ1) {
+ w_align = 64;
+ h_align = 64;
+ }
+ break;
+ case AV_PIX_FMT_RGB555:
+ if (s->codec_id == AV_CODEC_ID_RPZA) {
+ w_align = 4;
+ h_align = 4;
+ }
+ break;
+ case AV_PIX_FMT_PAL8:
+ case AV_PIX_FMT_BGR8:
+ case AV_PIX_FMT_RGB8:
+ if (s->codec_id == AV_CODEC_ID_SMC ||
+ s->codec_id == AV_CODEC_ID_CINEPAK) {
+ w_align = 4;
+ h_align = 4;
+ }
+ if (s->codec_id == AV_CODEC_ID_JV) {
+ w_align = 8;
+ h_align = 8;
+ }
+ break;
+ case AV_PIX_FMT_BGR24:
+ if ((s->codec_id == AV_CODEC_ID_MSZH) ||
+ (s->codec_id == AV_CODEC_ID_ZLIB)) {
+ w_align = 4;
+ h_align = 4;
+ }
+ break;
+ case AV_PIX_FMT_RGB24:
+ if (s->codec_id == AV_CODEC_ID_CINEPAK) {
+ w_align = 4;
+ h_align = 4;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
+ w_align = FFMAX(w_align, 8);
+ }
+
+ *width = FFALIGN(*width, w_align);
+ *height = FFALIGN(*height, h_align);
+ if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
+ // some of the optimized chroma MC reads one line too much
+ // which is also done in mpeg decoders with lowres > 0
+ *height += 2;
+
+ // H.264 uses edge emulation for out of frame motion vectors, for this
+ // it requires a temporary area large enough to hold a 21x21 block,
+ // increasing witdth ensure that the temporary area is large enough,
+ // the next rounded up width is 32
+ *width = FFMAX(*width, 32);
+ }
+
+ for (i = 0; i < 4; i++)
+ linesize_align[i] = STRIDE_ALIGN;
+}
+
+void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
+ int chroma_shift = desc->log2_chroma_w;
+ int linesize_align[AV_NUM_DATA_POINTERS];
+ int align;
+
+ avcodec_align_dimensions2(s, width, height, linesize_align);
+ align = FFMAX(linesize_align[0], linesize_align[3]);
+ linesize_align[1] <<= chroma_shift;
+ linesize_align[2] <<= chroma_shift;
+ align = FFMAX3(align, linesize_align[1], linesize_align[2]);
+ *width = FFALIGN(*width, align);
+}
+
+int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
+{
+ if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
+ return AVERROR(EINVAL);
+ pos--;
+
+ *xpos = (pos&1) * 128;
+ *ypos = ((pos>>1)^(pos<4)) * 128;
+
+ return 0;
+}
+
+enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
+{
+ int pos, xout, yout;
+
+ for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
+ if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
+ return pos;
+ }
+ return AVCHROMA_LOC_UNSPECIFIED;
+}
+
+int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
+ enum AVSampleFormat sample_fmt, const uint8_t *buf,
+ int buf_size, int align)
+{
+ int ch, planar, needed_size, ret = 0;
+
+ needed_size = av_samples_get_buffer_size(NULL, nb_channels,
+ frame->nb_samples, sample_fmt,
+ align);
+ if (buf_size < needed_size)
+ return AVERROR(EINVAL);
+
+ planar = av_sample_fmt_is_planar(sample_fmt);
+ if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
+ if (!(frame->extended_data = av_mallocz_array(nb_channels,
+ sizeof(*frame->extended_data))))
+ return AVERROR(ENOMEM);
+ } else {
+ frame->extended_data = frame->data;
+ }
+
+ if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
+ (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
+ sample_fmt, align)) < 0) {
+ if (frame->extended_data != frame->data)
+ av_freep(&frame->extended_data);
+ return ret;
+ }
+ if (frame->extended_data != frame->data) {
+ for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
+ frame->data[ch] = frame->extended_data[ch];
+ }
+
+ return ret;
+}
+
+static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
+{
+ FramePool *pool = avctx->internal->pool;
+ int i, ret;
+
+ switch (avctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO: {
+ uint8_t *data[4];
+ int linesize[4];
+ int size[4] = { 0 };
+ int w = frame->width;
+ int h = frame->height;
+ int tmpsize, unaligned;
+
+ if (pool->format == frame->format &&
+ pool->width == frame->width && pool->height == frame->height)
+ return 0;
+
+ avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
+
+ do {
+ // NOTE: do not align linesizes individually, this breaks e.g. assumptions
+ // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
+ ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
+ if (ret < 0)
+ return ret;
+ // increase alignment of w for next try (rhs gives the lowest bit set in w)
+ w += w & ~(w - 1);
+
+ unaligned = 0;
+ for (i = 0; i < 4; i++)
+ unaligned |= linesize[i] % pool->stride_align[i];
+ } while (unaligned);
+
+ tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
+ NULL, linesize);
+ if (tmpsize < 0)
+ return -1;
+
+ for (i = 0; i < 3 && data[i + 1]; i++)
+ size[i] = data[i + 1] - data[i];
+ size[i] = tmpsize - (data[i] - data[0]);
+
+ for (i = 0; i < 4; i++) {
+ av_buffer_pool_uninit(&pool->pools[i]);
+ pool->linesize[i] = linesize[i];
+ if (size[i]) {
+ pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
+ CONFIG_MEMORY_POISONING ?
+ NULL :
+ av_buffer_allocz);
+ if (!pool->pools[i]) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ }
+ }
+ pool->format = frame->format;
+ pool->width = frame->width;
+ pool->height = frame->height;
+
+ break;
+ }
+ case AVMEDIA_TYPE_AUDIO: {
+ int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout);
+ int planar = av_sample_fmt_is_planar(frame->format);
+ int planes = planar ? ch : 1;
+
+ if (pool->format == frame->format && pool->planes == planes &&
+ pool->channels == ch && frame->nb_samples == pool->samples)
+ return 0;
+
+ av_buffer_pool_uninit(&pool->pools[0]);
+ ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
+ frame->nb_samples, frame->format, 0);
+ if (ret < 0)
+ goto fail;
+
+ pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
+ if (!pool->pools[0]) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ pool->format = frame->format;
+ pool->planes = planes;
+ pool->channels = ch;
+ pool->samples = frame->nb_samples;
+ break;
+ }
+ default: av_assert0(0);
+ }
+ return 0;
+fail:
+ for (i = 0; i < 4; i++)
+ av_buffer_pool_uninit(&pool->pools[i]);
+ pool->format = -1;
+ pool->planes = pool->channels = pool->samples = 0;
+ pool->width = pool->height = 0;
+ return ret;
+}
+
+static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
+{
+ FramePool *pool = avctx->internal->pool;
+ int planes = pool->planes;
+ int i;
+
+ frame->linesize[0] = pool->linesize[0];
+
+ if (planes > AV_NUM_DATA_POINTERS) {
+ frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
+ frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
+ frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
+ sizeof(*frame->extended_buf));
+ if (!frame->extended_data || !frame->extended_buf) {
+ av_freep(&frame->extended_data);
+ av_freep(&frame->extended_buf);
+ return AVERROR(ENOMEM);
+ }
+ } else {
+ frame->extended_data = frame->data;
+ av_assert0(frame->nb_extended_buf == 0);
+ }
+
+ for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
+ frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
+ if (!frame->buf[i])
+ goto fail;
+ frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
+ }
+ for (i = 0; i < frame->nb_extended_buf; i++) {
+ frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
+ if (!frame->extended_buf[i])
+ goto fail;
+ frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
+ }
+
+ if (avctx->debug & FF_DEBUG_BUFFERS)
+ av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
+
+ return 0;
+fail:
+ av_frame_unref(frame);
+ return AVERROR(ENOMEM);
+}
+
+static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
+{
+ FramePool *pool = s->internal->pool;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
+ int i;
+
+ if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
+ av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
+ return -1;
+ }
+
+ if (!desc) {
+ av_log(s, AV_LOG_ERROR,
+ "Unable to get pixel format descriptor for format %s\n",
+ av_get_pix_fmt_name(pic->format));
+ return AVERROR(EINVAL);
+ }
+
+ memset(pic->data, 0, sizeof(pic->data));
+ pic->extended_data = pic->data;
+
+ for (i = 0; i < 4 && pool->pools[i]; i++) {
+ pic->linesize[i] = pool->linesize[i];
+
+ pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
+ if (!pic->buf[i])
+ goto fail;
+
+ pic->data[i] = pic->buf[i]->data;
+ }
+ for (; i < AV_NUM_DATA_POINTERS; i++) {
+ pic->data[i] = NULL;
+ pic->linesize[i] = 0;
+ }
+ if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
+ desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
+ avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
+
+ if (s->debug & FF_DEBUG_BUFFERS)
+ av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
+
+ return 0;
+fail:
+ av_frame_unref(pic);
+ return AVERROR(ENOMEM);
+}
+
+void ff_color_frame(AVFrame *frame, const int c[4])
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ int p, y, x;
+
+ av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
+
+ for (p = 0; p<desc->nb_components; p++) {
+ uint8_t *dst = frame->data[p];
+ int is_chroma = p == 1 || p == 2;
+ int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
+ int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
+ for (y = 0; y < height; y++) {
+ if (desc->comp[0].depth >= 9) {
+ for (x = 0; x<bytes; x++)
+ ((uint16_t*)dst)[x] = c[p];
+ }else
+ memset(dst, c[p], bytes);
+ dst += frame->linesize[p];
+ }
+ }
+}
+
+int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+ int ret;
+
+ if ((ret = update_frame_pool(avctx, frame)) < 0)
+ return ret;
+
+ switch (avctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ return video_get_buffer(avctx, frame);
+ case AVMEDIA_TYPE_AUDIO:
+ return audio_get_buffer(avctx, frame);
+ default:
+ return -1;
+ }
+}
+
+static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame)
+{
+ int size;
+ const uint8_t *side_metadata;
+
+ AVDictionary **frame_md = avpriv_frame_get_metadatap(frame);
+
+ side_metadata = av_packet_get_side_data(avpkt,
+ AV_PKT_DATA_STRINGS_METADATA, &size);
+ return av_packet_unpack_dictionary(side_metadata, size, frame_md);
+}
+
+int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
+{
+ AVPacket *pkt = avctx->internal->pkt;
+ int i;
+ static const struct {
+ enum AVPacketSideDataType packet;
+ enum AVFrameSideDataType frame;
+ } sd[] = {
+ { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
+ { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
+ { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
+ { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
+ { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
+ };
+
+ if (pkt) {
+ frame->pkt_pts = pkt->pts;
+ av_frame_set_pkt_pos (frame, pkt->pos);
+ av_frame_set_pkt_duration(frame, pkt->duration);
+ av_frame_set_pkt_size (frame, pkt->size);
+
+ for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
+ int size;
+ uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
+ if (packet_sd) {
+ AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
+ sd[i].frame,
+ size);
+ if (!frame_sd)
+ return AVERROR(ENOMEM);
+
+ memcpy(frame_sd->data, packet_sd, size);
+ }
+ }
+ add_metadata_from_side_data(pkt, frame);
+ } else {
+ frame->pkt_pts = AV_NOPTS_VALUE;
+ av_frame_set_pkt_pos (frame, -1);
+ av_frame_set_pkt_duration(frame, 0);
+ av_frame_set_pkt_size (frame, -1);
+ }
+ frame->reordered_opaque = avctx->reordered_opaque;
+
+ if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
+ frame->color_primaries = avctx->color_primaries;
+ if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
+ frame->color_trc = avctx->color_trc;
+ if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED)
+ av_frame_set_colorspace(frame, avctx->colorspace);
+ if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED)
+ av_frame_set_color_range(frame, avctx->color_range);
+ if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
+ frame->chroma_location = avctx->chroma_sample_location;
+
+ switch (avctx->codec->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ frame->format = avctx->pix_fmt;
+ if (!frame->sample_aspect_ratio.num)
+ frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
+
+ if (frame->width && frame->height &&
+ av_image_check_sar(frame->width, frame->height,
+ frame->sample_aspect_ratio) < 0) {
+ av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
+ frame->sample_aspect_ratio.num,
+ frame->sample_aspect_ratio.den);
+ frame->sample_aspect_ratio = (AVRational){ 0, 1 };
+ }
+
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ if (!frame->sample_rate)
+ frame->sample_rate = avctx->sample_rate;
+ if (frame->format < 0)
+ frame->format = avctx->sample_fmt;
+ if (!frame->channel_layout) {
+ if (avctx->channel_layout) {
+ if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
+ avctx->channels) {
+ av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
+ "configuration.\n");
+ return AVERROR(EINVAL);
+ }
+
+ frame->channel_layout = avctx->channel_layout;
+ } else {
+ if (avctx->channels > FF_SANE_NB_CHANNELS) {
+ av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
+ avctx->channels);
+ return AVERROR(ENOSYS);
+ }
+ }
+ }
+ av_frame_set_channels(frame, avctx->channels);
+ break;
+ }
+ return 0;
+}
+
+int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
+{
+ return ff_init_buffer_info(avctx, frame);
+}
+
+static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
+{
+ if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ int i;
+ int num_planes = av_pix_fmt_count_planes(frame->format);
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ int flags = desc ? desc->flags : 0;
+ if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
+ num_planes = 2;
+ for (i = 0; i < num_planes; i++) {
+ av_assert0(frame->data[i]);
+ }
+ // For now do not enforce anything for palette of pseudopal formats
+ if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PSEUDOPAL))
+ num_planes = 2;
+ // For formats without data like hwaccel allow unused pointers to be non-NULL.
+ for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
+ if (frame->data[i])
+ av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
+ frame->data[i] = NULL;
+ }
+ }
+}
+
+static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+ const AVHWAccel *hwaccel = avctx->hwaccel;
+ int override_dimensions = 1;
+ int ret;
+
+ if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) {
+ av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (frame->width <= 0 || frame->height <= 0) {
+ frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
+ frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
+ override_dimensions = 0;
+ }
+
+ if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
+ av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
+ return AVERROR(EINVAL);
+ }
+ }
+ ret = ff_decode_frame_props(avctx, frame);
+ if (ret < 0)
+ return ret;
+
+ if (hwaccel) {
+ if (hwaccel->alloc_frame) {
+ ret = hwaccel->alloc_frame(avctx, frame);
+ goto end;
+ }
+ } else
+ avctx->sw_pix_fmt = avctx->pix_fmt;
+
+ ret = avctx->get_buffer2(avctx, frame, flags);
+ if (ret >= 0)
+ validate_avframe_allocation(avctx, frame);
+
+end:
+ if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) {
+ frame->width = avctx->width;
+ frame->height = avctx->height;
+ }
+
+ return ret;
+}
+
+int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+ int ret = get_buffer_internal(avctx, frame, flags);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ frame->width = frame->height = 0;
+ }
+ return ret;
+}
+
+static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
+{
+ AVFrame *tmp;
+ int ret;
+
+ av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
+
+ if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
+ av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
+ frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
+ av_frame_unref(frame);
+ }
+
+ ff_init_buffer_info(avctx, frame);
+
+ if (!frame->data[0])
+ return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
+
+ if (av_frame_is_writable(frame))
+ return ff_decode_frame_props(avctx, frame);
+
+ tmp = av_frame_alloc();
+ if (!tmp)
+ return AVERROR(ENOMEM);
+
+ av_frame_move_ref(tmp, frame);
+
+ ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
+ if (ret < 0) {
+ av_frame_free(&tmp);
+ return ret;
+ }
+
+ av_frame_copy(frame, tmp);
+ av_frame_free(&tmp);
+
+ return 0;
+}
+
+int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
+{
+ int ret = reget_buffer_internal(avctx, frame);
+ if (ret < 0)
+ av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
+ return ret;
+}
+
+int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ int r = func(c, (char *)arg + i * size);
+ if (ret)
+ ret[i] = r;
+ }
+ return 0;
+}
+
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ int r = func(c, arg, i, 0);
+ if (ret)
+ ret[i] = r;
+ }
+ return 0;
+}
+
+enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
+ unsigned int fourcc)
+{
+ while (tags->pix_fmt >= 0) {
+ if (tags->fourcc == fourcc)
+ return tags->pix_fmt;
+ tags++;
+ }
+ return AV_PIX_FMT_NONE;
+}
+
+static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
+}
+
+enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
+{
+ while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
+ ++fmt;
+ return fmt[0];
+}
+
+static AVHWAccel *find_hwaccel(enum AVCodecID codec_id,
+ enum AVPixelFormat pix_fmt)
+{
+ AVHWAccel *hwaccel = NULL;
+
+ while ((hwaccel = av_hwaccel_next(hwaccel)))
+ if (hwaccel->id == codec_id
+ && hwaccel->pix_fmt == pix_fmt)
+ return hwaccel;
+ return NULL;
+}
+
+static int setup_hwaccel(AVCodecContext *avctx,
+ const enum AVPixelFormat fmt,
+ const char *name)
+{
+ AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt);
+ int ret = 0;
+
+ if (avctx->active_thread_type & FF_THREAD_FRAME) {
+ av_log(avctx, AV_LOG_WARNING,
+ "Hardware accelerated decoding with frame threading is known to be unstable and its use is discouraged.\n");
+ }
+
+ if (!hwa) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Could not find an AVHWAccel for the pixel format: %s",
+ name);
+ return AVERROR(ENOENT);
+ }
+
+ if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL &&
+ avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+ av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
+ hwa->name);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ if (hwa->priv_data_size) {
+ avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size);
+ if (!avctx->internal->hwaccel_priv_data)
+ return AVERROR(ENOMEM);
+ }
+
+ if (hwa->init) {
+ ret = hwa->init(avctx);
+ if (ret < 0) {
+ av_freep(&avctx->internal->hwaccel_priv_data);
+ return ret;
+ }
+ }
+
+ avctx->hwaccel = hwa;
+
+ return 0;
+}
+
+int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
+{
+ const AVPixFmtDescriptor *desc;
+ enum AVPixelFormat *choices;
+ enum AVPixelFormat ret;
+ unsigned n = 0;
+
+ while (fmt[n] != AV_PIX_FMT_NONE)
+ ++n;
+
+ av_assert0(n >= 1);
+ avctx->sw_pix_fmt = fmt[n - 1];
+ av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt));
+
+ choices = av_malloc_array(n + 1, sizeof(*choices));
+ if (!choices)
+ return AV_PIX_FMT_NONE;
+
+ memcpy(choices, fmt, (n + 1) * sizeof(*choices));
+
+ for (;;) {
+ if (avctx->hwaccel && avctx->hwaccel->uninit)
+ avctx->hwaccel->uninit(avctx);
+ av_freep(&avctx->internal->hwaccel_priv_data);
+ avctx->hwaccel = NULL;
+
+ ret = avctx->get_format(avctx, choices);
+
+ desc = av_pix_fmt_desc_get(ret);
+ if (!desc) {
+ ret = AV_PIX_FMT_NONE;
+ break;
+ }
+
+ if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
+ break;
+#if FF_API_CAP_VDPAU
+ if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
+ break;
+#endif
+
+ if (!setup_hwaccel(avctx, ret, desc->name))
+ break;
+
+ /* Remove failed hwaccel from choices */
+ for (n = 0; choices[n] != ret; n++)
+ av_assert0(choices[n] != AV_PIX_FMT_NONE);
+
+ do
+ choices[n] = choices[n + 1];
+ while (choices[n++] != AV_PIX_FMT_NONE);
+ }
+
+ av_freep(&choices);
+ return ret;
+}
+
+MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
+MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
+MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
+MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
+MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
+
+unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
+{
+ return codec->properties;
+}
+
+int av_codec_get_max_lowres(const AVCodec *codec)
+{
+ return codec->max_lowres;
+}
+
+int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
+ return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
+}
+
+static void get_subtitle_defaults(AVSubtitle *sub)
+{
+ memset(sub, 0, sizeof(*sub));
+ sub->pts = AV_NOPTS_VALUE;
+}
+
+static int64_t get_bit_rate(AVCodecContext *ctx)
+{
+ int64_t bit_rate;
+ int bits_per_sample;
+
+ switch (ctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ case AVMEDIA_TYPE_DATA:
+ case AVMEDIA_TYPE_SUBTITLE:
+ case AVMEDIA_TYPE_ATTACHMENT:
+ bit_rate = ctx->bit_rate;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
+ bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
+ break;
+ default:
+ bit_rate = 0;
+ break;
+ }
+ return bit_rate;
+}
+
+int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
+{
+ int ret = 0;
+
+ ff_unlock_avcodec(codec);
+
+ ret = avcodec_open2(avctx, codec, options);
+
+ ff_lock_avcodec(avctx, codec);
+ return ret;
+}
+
+int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
+{
+ int ret = 0;
+ AVDictionary *tmp = NULL;
+ const AVPixFmtDescriptor *pixdesc;
+
+ if (avcodec_is_open(avctx))
+ return 0;
+
+ if ((!codec && !avctx->codec)) {
+ av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
+ return AVERROR(EINVAL);
+ }
+ if ((codec && avctx->codec && codec != avctx->codec)) {
+ av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
+ "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
+ return AVERROR(EINVAL);
+ }
+ if (!codec)
+ codec = avctx->codec;
+
+ if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
+ return AVERROR(EINVAL);
+
+ if (options)
+ av_dict_copy(&tmp, *options, 0);
+
+ ret = ff_lock_avcodec(avctx, codec);
+ if (ret < 0)
+ return ret;
+
+ avctx->internal = av_mallocz(sizeof(AVCodecInternal));
+ if (!avctx->internal) {
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+
+ avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
+ if (!avctx->internal->pool) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->to_free = av_frame_alloc();
+ if (!avctx->internal->to_free) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->buffer_frame = av_frame_alloc();
+ if (!avctx->internal->buffer_frame) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ avctx->internal->buffer_pkt = av_packet_alloc();
+ if (!avctx->internal->buffer_pkt) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+
+ if (codec->priv_data_size > 0) {
+ if (!avctx->priv_data) {
+ avctx->priv_data = av_mallocz(codec->priv_data_size);
+ if (!avctx->priv_data) {
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+ if (codec->priv_class) {
+ *(const AVClass **)avctx->priv_data = codec->priv_class;
+ av_opt_set_defaults(avctx->priv_data);
+ }
+ }
+ if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
+ goto free_and_end;
+ } else {
+ avctx->priv_data = NULL;
+ }
+ if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
+ goto free_and_end;
+
+ if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+ // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
+ if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
+ (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
+ if (avctx->coded_width && avctx->coded_height)
+ ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
+ else if (avctx->width && avctx->height)
+ ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
+ if (ret < 0)
+ goto free_and_end;
+ }
+
+ if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
+ && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
+ || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
+ av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
+ ff_set_dimensions(avctx, 0, 0);
+ }
+
+ if (avctx->width > 0 && avctx->height > 0) {
+ if (av_image_check_sar(avctx->width, avctx->height,
+ avctx->sample_aspect_ratio) < 0) {
+ av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
+ avctx->sample_aspect_ratio.num,
+ avctx->sample_aspect_ratio.den);
+ avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
+ }
+ }
+
+ /* if the decoder init function was already called previously,
+ * free the already allocated subtitle_header before overwriting it */
+ if (av_codec_is_decoder(codec))
+ av_freep(&avctx->subtitle_header);
+
+ if (avctx->channels > FF_SANE_NB_CHANNELS) {
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+ avctx->codec = codec;
+ if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
+ avctx->codec_id == AV_CODEC_ID_NONE) {
+ avctx->codec_type = codec->type;
+ avctx->codec_id = codec->id;
+ }
+ if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
+ && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
+ av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ avctx->frame_number = 0;
+ avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
+
+ if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
+ avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+ const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
+ AVCodec *codec2;
+ av_log(avctx, AV_LOG_ERROR,
+ "The %s '%s' is experimental but experimental codecs are not enabled, "
+ "add '-strict %d' if you want to use it.\n",
+ codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
+ codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
+ if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
+ av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
+ codec_string, codec2->name);
+ ret = AVERROR_EXPERIMENTAL;
+ goto free_and_end;
+ }
+
+ if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
+ (!avctx->time_base.num || !avctx->time_base.den)) {
+ avctx->time_base.num = 1;
+ avctx->time_base.den = avctx->sample_rate;
+ }
+
+ if (!HAVE_THREADS)
+ av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
+
+ if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
+ ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
+ ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
+ ff_lock_avcodec(avctx, codec);
+ if (ret < 0)
+ goto free_and_end;
+ }
+
+ if (HAVE_THREADS
+ && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
+ ret = ff_thread_init(avctx);
+ if (ret < 0) {
+ goto free_and_end;
+ }
+ }
+ if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
+ avctx->thread_count = 1;
+
+ if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
+ av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
+ avctx->codec->max_lowres);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+#if FF_API_VISMV
+ if (avctx->debug_mv)
+ av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, "
+ "see the codecview filter instead.\n");
+#endif
+
+ if (av_codec_is_encoder(avctx->codec)) {
+ int i;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->coded_frame = av_frame_alloc();
+ if (!avctx->coded_frame) {
+ ret = AVERROR(ENOMEM);
+ goto free_and_end;
+ }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+
+ if (avctx->codec->sample_fmts) {
+ for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
+ if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
+ break;
+ if (avctx->channels == 1 &&
+ av_get_planar_sample_fmt(avctx->sample_fmt) ==
+ av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
+ avctx->sample_fmt = avctx->codec->sample_fmts[i];
+ break;
+ }
+ }
+ if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
+ char buf[128];
+ snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
+ av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
+ (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ if (avctx->codec->pix_fmts) {
+ for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
+ if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
+ break;
+ if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
+ && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
+ && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
+ char buf[128];
+ snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
+ av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
+ (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
+ avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
+ avctx->color_range = AVCOL_RANGE_JPEG;
+ }
+ if (avctx->codec->supported_samplerates) {
+ for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
+ if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
+ break;
+ if (avctx->codec->supported_samplerates[i] == 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+ avctx->sample_rate);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ if (avctx->sample_rate < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+ avctx->sample_rate);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->codec->channel_layouts) {
+ if (!avctx->channel_layout) {
+ av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
+ } else {
+ for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
+ if (avctx->channel_layout == avctx->codec->channel_layouts[i])
+ break;
+ if (avctx->codec->channel_layouts[i] == 0) {
+ char buf[512];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+ av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ }
+ if (avctx->channel_layout && avctx->channels) {
+ int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+ if (channels != avctx->channels) {
+ char buf[512];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+ av_log(avctx, AV_LOG_ERROR,
+ "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
+ buf, channels, avctx->channels);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ } else if (avctx->channel_layout) {
+ avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+ }
+ if (avctx->channels < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
+ avctx->channels);
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ if ( avctx->bits_per_raw_sample < 0
+ || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
+ av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
+ avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
+ avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
+ }
+ if (avctx->width <= 0 || avctx->height <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
+ && avctx->bit_rate>0 && avctx->bit_rate<1000) {
+ av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", (int64_t)avctx->bit_rate, (int64_t)avctx->bit_rate);
+ }
+
+ if (!avctx->rc_initial_buffer_occupancy)
+ avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4;
+
+ if (avctx->ticks_per_frame && avctx->time_base.num &&
+ avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
+ av_log(avctx, AV_LOG_ERROR,
+ "ticks_per_frame %d too large for the timebase %d/%d.",
+ avctx->ticks_per_frame,
+ avctx->time_base.num,
+ avctx->time_base.den);
+ goto free_and_end;
+ }
+
+ if (avctx->hw_frames_ctx) {
+ AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+ if (frames_ctx->format != avctx->pix_fmt) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ }
+ }
+
+ avctx->pts_correction_num_faulty_pts =
+ avctx->pts_correction_num_faulty_dts = 0;
+ avctx->pts_correction_last_pts =
+ avctx->pts_correction_last_dts = INT64_MIN;
+
+ if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
+ && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
+ av_log(avctx, AV_LOG_WARNING,
+ "gray decoding requested but not enabled at configuration time\n");
+
+ if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
+ || avctx->internal->frame_thread_encoder)) {
+ ret = avctx->codec->init(avctx);
+ if (ret < 0) {
+ goto free_and_end;
+ }
+ }
+
+ ret=0;
+
+#if FF_API_AUDIOENC_DELAY
+ if (av_codec_is_encoder(avctx->codec))
+ avctx->delay = avctx->initial_padding;
+#endif
+
+ if (av_codec_is_decoder(avctx->codec)) {
+ if (!avctx->bit_rate)
+ avctx->bit_rate = get_bit_rate(avctx);
+ /* validate channel layout from the decoder */
+ if (avctx->channel_layout) {
+ int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+ if (!avctx->channels)
+ avctx->channels = channels;
+ else if (channels != avctx->channels) {
+ char buf[512];
+ av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+ av_log(avctx, AV_LOG_WARNING,
+ "Channel layout '%s' with %d channels does not match specified number of channels %d: "
+ "ignoring specified channel layout\n",
+ buf, channels, avctx->channels);
+ avctx->channel_layout = 0;
+ }
+ }
+ if (avctx->channels && avctx->channels < 0 ||
+ avctx->channels > FF_SANE_NB_CHANNELS) {
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ }
+ if (avctx->sub_charenc) {
+ if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
+ av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
+ "supported with subtitles codecs\n");
+ ret = AVERROR(EINVAL);
+ goto free_and_end;
+ } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
+ av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
+ "subtitles character encoding will be ignored\n",
+ avctx->codec_descriptor->name);
+ avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
+ } else {
+ /* input character encoding is set for a text based subtitle
+ * codec at this point */
+ if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
+ avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
+
+ if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
+#if CONFIG_ICONV
+ iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
+ if (cd == (iconv_t)-1) {
+ ret = AVERROR(errno);
+ av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
+ "with input character encoding \"%s\"\n", avctx->sub_charenc);
+ goto free_and_end;
+ }
+ iconv_close(cd);
+#else
+ av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
+ "conversion needs a libavcodec built with iconv support "
+ "for this codec\n");
+ ret = AVERROR(ENOSYS);
+ goto free_and_end;
+#endif
+ }
+ }
+ }
+
+#if FF_API_AVCTX_TIMEBASE
+ if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
+ avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+#endif
+ }
+ if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
+ av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
+ }
+
+end:
+ ff_unlock_avcodec(codec);
+ if (options) {
+ av_dict_free(options);
+ *options = tmp;
+ }
+
+ return ret;
+free_and_end:
+ if (avctx->codec &&
+ (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
+ avctx->codec->close(avctx);
+
+ if (codec->priv_class && codec->priv_data_size)
+ av_opt_free(avctx->priv_data);
+ av_opt_free(avctx);
+
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ av_dict_free(&tmp);
+ av_freep(&avctx->priv_data);
+ if (avctx->internal) {
+ av_packet_free(&avctx->internal->buffer_pkt);
+ av_frame_free(&avctx->internal->buffer_frame);
+ av_frame_free(&avctx->internal->to_free);
+ av_freep(&avctx->internal->pool);
+ }
+ av_freep(&avctx->internal);
+ avctx->codec = NULL;
+ goto end;
+}
+
+int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
+{
+ if (avpkt->size < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
+ return AVERROR(EINVAL);
+ }
+ if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
+ size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
+ return AVERROR(EINVAL);
+ }
+
+ if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
+ av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
+ if (!avpkt->data || avpkt->size < size) {
+ av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
+ avpkt->data = avctx->internal->byte_buffer;
+ avpkt->size = avctx->internal->byte_buffer_size;
+ }
+ }
+
+ if (avpkt->data) {
+ AVBufferRef *buf = avpkt->buf;
+
+ if (avpkt->size < size) {
+ av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
+ return AVERROR(EINVAL);
+ }
+
+ av_init_packet(avpkt);
+ avpkt->buf = buf;
+ avpkt->size = size;
+ return 0;
+ } else {
+ int ret = av_new_packet(avpkt, size);
+ if (ret < 0)
+ av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
+ return ret;
+ }
+}
+
+int ff_alloc_packet(AVPacket *avpkt, int size)
+{
+ return ff_alloc_packet2(NULL, avpkt, size, 0);
+}
+
+/**
+ * Pad last frame with silence.
+ */
+static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
+{
+ AVFrame *frame = NULL;
+ int ret;
+
+ if (!(frame = av_frame_alloc()))
+ return AVERROR(ENOMEM);
+
+ frame->format = src->format;
+ frame->channel_layout = src->channel_layout;
+ av_frame_set_channels(frame, av_frame_get_channels(src));
+ frame->nb_samples = s->frame_size;
+ ret = av_frame_get_buffer(frame, 32);
+ if (ret < 0)
+ goto fail;
+
+ ret = av_frame_copy_props(frame, src);
+ if (ret < 0)
+ goto fail;
+
+ if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
+ src->nb_samples, s->channels, s->sample_fmt)) < 0)
+ goto fail;
+ if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
+ frame->nb_samples - src->nb_samples,
+ s->channels, s->sample_fmt)) < 0)
+ goto fail;
+
+ *dst = frame;
+
+ return 0;
+
+fail:
+ av_frame_free(&frame);
+ return ret;
+}
+
+int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
+ AVPacket *avpkt,
+ const AVFrame *frame,
+ int *got_packet_ptr)
+{
+ AVFrame *extended_frame = NULL;
+ AVFrame *padded_frame = NULL;
+ int ret;
+ AVPacket user_pkt = *avpkt;
+ int needs_realloc = !user_pkt.data;
+
+ *got_packet_ptr = 0;
+
+ if (!avctx->codec->encode2) {
+ av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
+ return AVERROR(ENOSYS);
+ }
+
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
+ av_packet_unref(avpkt);
+ av_init_packet(avpkt);
+ return 0;
+ }
+
+ /* ensure that extended_data is properly set */
+ if (frame && !frame->extended_data) {
+ if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
+ avctx->channels > AV_NUM_DATA_POINTERS) {
+ av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
+ "with more than %d channels, but extended_data is not set.\n",
+ AV_NUM_DATA_POINTERS);
+ return AVERROR(EINVAL);
+ }
+ av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
+
+ extended_frame = av_frame_alloc();
+ if (!extended_frame)
+ return AVERROR(ENOMEM);
+
+ memcpy(extended_frame, frame, sizeof(AVFrame));
+ extended_frame->extended_data = extended_frame->data;
+ frame = extended_frame;
+ }
+
+ /* extract audio service type metadata */
+ if (frame) {
+ AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
+ if (sd && sd->size >= sizeof(enum AVAudioServiceType))
+ avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
+ }
+
+ /* check for valid frame size */
+ if (frame) {
+ if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
+ if (frame->nb_samples > avctx->frame_size) {
+ av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+ } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
+ if (frame->nb_samples < avctx->frame_size &&
+ !avctx->internal->last_audio_frame) {
+ ret = pad_last_frame(avctx, &padded_frame, frame);
+ if (ret < 0)
+ goto end;
+
+ frame = padded_frame;
+ avctx->internal->last_audio_frame = 1;
+ }
+
+ if (frame->nb_samples != avctx->frame_size) {
+ av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+ }
+ }
+
+ av_assert0(avctx->codec->encode2);
+
+ ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
+ if (!ret) {
+ if (*got_packet_ptr) {
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
+ if (avpkt->pts == AV_NOPTS_VALUE)
+ avpkt->pts = frame->pts;
+ if (!avpkt->duration)
+ avpkt->duration = ff_samples_to_time_base(avctx,
+ frame->nb_samples);
+ }
+ avpkt->dts = avpkt->pts;
+ } else {
+ avpkt->size = 0;
+ }
+ }
+ if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
+ needs_realloc = 0;
+ if (user_pkt.data) {
+ if (user_pkt.size >= avpkt->size) {
+ memcpy(user_pkt.data, avpkt->data, avpkt->size);
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
+ avpkt->size = user_pkt.size;
+ ret = -1;
+ }
+ avpkt->buf = user_pkt.buf;
+ avpkt->data = user_pkt.data;
+ } else {
+ if (av_dup_packet(avpkt) < 0) {
+ ret = AVERROR(ENOMEM);
+ }
+ }
+ }
+
+ if (!ret) {
+ if (needs_realloc && avpkt->data) {
+ ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (ret >= 0)
+ avpkt->data = avpkt->buf->data;
+ }
+
+ avctx->frame_number++;
+ }
+
+ if (ret < 0 || !*got_packet_ptr) {
+ av_packet_unref(avpkt);
+ av_init_packet(avpkt);
+ goto end;
+ }
+
+ /* NOTE: if we add any audio encoders which output non-keyframe packets,
+ * this needs to be moved to the encoders, but for now we can do it
+ * here to simplify things */
+ avpkt->flags |= AV_PKT_FLAG_KEY;
+
+end:
+ av_frame_free(&padded_frame);
+ av_free(extended_frame);
+
+#if FF_API_AUDIOENC_DELAY
+ avctx->delay = avctx->initial_padding;
+#endif
+
+ return ret;
+}
+
+int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
+ AVPacket *avpkt,
+ const AVFrame *frame,
+ int *got_packet_ptr)
+{
+ int ret;
+ AVPacket user_pkt = *avpkt;
+ int needs_realloc = !user_pkt.data;
+
+ *got_packet_ptr = 0;
+
+ if (!avctx->codec->encode2) {
+ av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
+ return AVERROR(ENOSYS);
+ }
+
+ if(CONFIG_FRAME_THREAD_ENCODER &&
+ avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
+ return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
+
+ if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
+ avctx->stats_out[0] = '\0';
+
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
+ av_packet_unref(avpkt);
+ av_init_packet(avpkt);
+ avpkt->size = 0;
+ return 0;
+ }
+
+ if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
+ return AVERROR(EINVAL);
+
+ if (frame && frame->format == AV_PIX_FMT_NONE)
+ av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
+ if (frame && (frame->width == 0 || frame->height == 0))
+ av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
+
+ av_assert0(avctx->codec->encode2);
+
+ ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
+ av_assert0(ret <= 0);
+
+ if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
+ needs_realloc = 0;
+ if (user_pkt.data) {
+ if (user_pkt.size >= avpkt->size) {
+ memcpy(user_pkt.data, avpkt->data, avpkt->size);
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
+ avpkt->size = user_pkt.size;
+ ret = -1;
+ }
+ avpkt->buf = user_pkt.buf;
+ avpkt->data = user_pkt.data;
+ } else {
+ if (av_dup_packet(avpkt) < 0) {
+ ret = AVERROR(ENOMEM);
+ }
+ }
+ }
+
+ if (!ret) {
+ if (!*got_packet_ptr)
+ avpkt->size = 0;
+ else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+ avpkt->pts = avpkt->dts = frame->pts;
+
+ if (needs_realloc && avpkt->data) {
+ ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (ret >= 0)
+ avpkt->data = avpkt->buf->data;
+ }
+
+ avctx->frame_number++;
+ }
+
+ if (ret < 0 || !*got_packet_ptr)
+ av_packet_unref(avpkt);
+
+ emms_c();
+ return ret;
+}
+
+int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const AVSubtitle *sub)
+{
+ int ret;
+ if (sub->start_display_time) {
+ av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
+ return -1;
+ }
+
+ ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
+ avctx->frame_number++;
+ return ret;
+}
+
+/**
+ * Attempt to guess proper monotonic timestamps for decoded video frames
+ * which might have incorrect times. Input timestamps may wrap around, in
+ * which case the output will as well.
+ *
+ * @param pts the pts field of the decoded AVPacket, as passed through
+ * AVFrame.pkt_pts
+ * @param dts the dts field of the decoded AVPacket
+ * @return one of the input values, may be AV_NOPTS_VALUE
+ */
+static int64_t guess_correct_pts(AVCodecContext *ctx,
+ int64_t reordered_pts, int64_t dts)
+{
+ int64_t pts = AV_NOPTS_VALUE;
+
+ if (dts != AV_NOPTS_VALUE) {
+ ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
+ ctx->pts_correction_last_dts = dts;
+ } else if (reordered_pts != AV_NOPTS_VALUE)
+ ctx->pts_correction_last_dts = reordered_pts;
+
+ if (reordered_pts != AV_NOPTS_VALUE) {
+ ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
+ ctx->pts_correction_last_pts = reordered_pts;
+ } else if(dts != AV_NOPTS_VALUE)
+ ctx->pts_correction_last_pts = dts;
+
+ if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
+ && reordered_pts != AV_NOPTS_VALUE)
+ pts = reordered_pts;
+ else
+ pts = dts;
+
+ return pts;
+}
+
+static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ int size = 0, ret;
+ const uint8_t *data;
+ uint32_t flags;
+ int64_t val;
+
+ data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
+ if (!data)
+ return 0;
+
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
+ av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
+ "changes, but PARAM_CHANGE side data was sent to it.\n");
+ ret = AVERROR(EINVAL);
+ goto fail2;
+ }
+
+ if (size < 4)
+ goto fail;
+
+ flags = bytestream_get_le32(&data);
+ size -= 4;
+
+ if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
+ if (size < 4)
+ goto fail;
+ val = bytestream_get_le32(&data);
+ if (val <= 0 || val > INT_MAX) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
+ ret = AVERROR_INVALIDDATA;
+ goto fail2;
+ }
+ avctx->channels = val;
+ size -= 4;
+ }
+ if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
+ if (size < 8)
+ goto fail;
+ avctx->channel_layout = bytestream_get_le64(&data);
+ size -= 8;
+ }
+ if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
+ if (size < 4)
+ goto fail;
+ val = bytestream_get_le32(&data);
+ if (val <= 0 || val > INT_MAX) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
+ ret = AVERROR_INVALIDDATA;
+ goto fail2;
+ }
+ avctx->sample_rate = val;
+ size -= 4;
+ }
+ if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
+ if (size < 8)
+ goto fail;
+ avctx->width = bytestream_get_le32(&data);
+ avctx->height = bytestream_get_le32(&data);
+ size -= 8;
+ ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
+ if (ret < 0)
+ goto fail2;
+ }
+
+ return 0;
+fail:
+ av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
+ ret = AVERROR_INVALIDDATA;
+fail2:
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
+ if (avctx->err_recognition & AV_EF_EXPLODE)
+ return ret;
+ }
+ return 0;
+}
+
+static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
+{
+ int ret;
+
+ /* move the original frame to our backup */
+ av_frame_unref(avci->to_free);
+ av_frame_move_ref(avci->to_free, frame);
+
+ /* now copy everything except the AVBufferRefs back
+ * note that we make a COPY of the side data, so calling av_frame_free() on
+ * the caller's frame will work properly */
+ ret = av_frame_copy_props(frame, avci->to_free);
+ if (ret < 0)
+ return ret;
+
+ memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
+ memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
+ if (avci->to_free->extended_data != avci->to_free->data) {
+ int planes = av_frame_get_channels(avci->to_free);
+ int size = planes * sizeof(*frame->extended_data);
+
+ if (!size) {
+ av_frame_unref(frame);
+ return AVERROR_BUG;
+ }
+
+ frame->extended_data = av_malloc(size);
+ if (!frame->extended_data) {
+ av_frame_unref(frame);
+ return AVERROR(ENOMEM);
+ }
+ memcpy(frame->extended_data, avci->to_free->extended_data,
+ size);
+ } else
+ frame->extended_data = frame->data;
+
+ frame->format = avci->to_free->format;
+ frame->width = avci->to_free->width;
+ frame->height = avci->to_free->height;
+ frame->channel_layout = avci->to_free->channel_layout;
+ frame->nb_samples = avci->to_free->nb_samples;
+ av_frame_set_channels(frame, av_frame_get_channels(avci->to_free));
+
+ return 0;
+}
+
+int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
+ int *got_picture_ptr,
+ const AVPacket *avpkt)
+{
+ AVCodecInternal *avci = avctx->internal;
+ int ret;
+ // copy to ensure we do not change avpkt
+ AVPacket tmp = *avpkt;
+
+ if (!avctx->codec)
+ return AVERROR(EINVAL);
+ if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (!avctx->codec->decode) {
+ av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
+ return AVERROR(ENOSYS);
+ }
+
+ *got_picture_ptr = 0;
+ if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
+ return AVERROR(EINVAL);
+
+ avctx->internal->pkt = avpkt;
+ ret = apply_param_change(avctx, avpkt);
+ if (ret < 0)
+ return ret;
+
+ av_frame_unref(picture);
+
+ if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size ||
+ (avctx->active_thread_type & FF_THREAD_FRAME)) {
+ int did_split = av_packet_split_side_data(&tmp);
+ ret = apply_param_change(avctx, &tmp);
+ if (ret < 0)
+ goto fail;
+
+ avctx->internal->pkt = &tmp;
+ if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
+ ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
+ &tmp);
+ else {
+ ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
+ &tmp);
+ if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
+ picture->pkt_dts = avpkt->dts;
+
+ if(!avctx->has_b_frames){
+ av_frame_set_pkt_pos(picture, avpkt->pos);
+ }
+ //FIXME these should be under if(!avctx->has_b_frames)
+ /* get_buffer is supposed to set frame parameters */
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
+ if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
+ if (!picture->width) picture->width = avctx->width;
+ if (!picture->height) picture->height = avctx->height;
+ if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
+ }
+ }
+
+fail:
+ emms_c(); //needed to avoid an emms_c() call before every return;
+
+ avctx->internal->pkt = NULL;
+ if (did_split) {
+ av_packet_free_side_data(&tmp);
+ if(ret == tmp.size)
+ ret = avpkt->size;
+ }
+
+ if (*got_picture_ptr) {
+ if (!avctx->refcounted_frames) {
+ int err = unrefcount_frame(avci, picture);
+ if (err < 0)
+ return err;
+ }
+
+ avctx->frame_number++;
+ av_frame_set_best_effort_timestamp(picture,
+ guess_correct_pts(avctx,
+ picture->pkt_pts,
+ picture->pkt_dts));
+ } else
+ av_frame_unref(picture);
+ } else
+ ret = 0;
+
+ /* many decoders assign whole AVFrames, thus overwriting extended_data;
+ * make sure it's set correctly */
+ av_assert0(!picture->extended_data || picture->extended_data == picture->data);
+
+#if FF_API_AVCTX_TIMEBASE
+ if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
+ avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+#endif
+
+ return ret;
+}
+
+int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
+ AVFrame *frame,
+ int *got_frame_ptr,
+ const AVPacket *avpkt)
+{
+ AVCodecInternal *avci = avctx->internal;
+ int ret = 0;
+
+ *got_frame_ptr = 0;
+
+ if (!avctx->codec)
+ return AVERROR(EINVAL);
+
+ if (!avctx->codec->decode) {
+ av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n");
+ return AVERROR(ENOSYS);
+ }
+
+ if (!avpkt->data && avpkt->size) {
+ av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
+ return AVERROR(EINVAL);
+ }
+ if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
+ return AVERROR(EINVAL);
+ }
+
+ av_frame_unref(frame);
+
+ if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
+ uint8_t *side;
+ int side_size;
+ uint32_t discard_padding = 0;
+ uint8_t skip_reason = 0;
+ uint8_t discard_reason = 0;
+ // copy to ensure we do not change avpkt
+ AVPacket tmp = *avpkt;
+ int did_split = av_packet_split_side_data(&tmp);
+ ret = apply_param_change(avctx, &tmp);
+ if (ret < 0)
+ goto fail;
+
+ avctx->internal->pkt = &tmp;
+ if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
+ ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp);
+ else {
+ ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
+ av_assert0(ret <= tmp.size);
+ frame->pkt_dts = avpkt->dts;
+ }
+ if (ret >= 0 && *got_frame_ptr) {
+ avctx->frame_number++;
+ av_frame_set_best_effort_timestamp(frame,
+ guess_correct_pts(avctx,
+ frame->pkt_pts,
+ frame->pkt_dts));
+ if (frame->format == AV_SAMPLE_FMT_NONE)
+ frame->format = avctx->sample_fmt;
+ if (!frame->channel_layout)
+ frame->channel_layout = avctx->channel_layout;
+ if (!av_frame_get_channels(frame))
+ av_frame_set_channels(frame, avctx->channels);
+ if (!frame->sample_rate)
+ frame->sample_rate = avctx->sample_rate;
+ }
+
+ side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
+ if(side && side_size>=10) {
+ avctx->internal->skip_samples = AV_RL32(side);
+ discard_padding = AV_RL32(side + 4);
+ av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
+ avctx->internal->skip_samples, (int)discard_padding);
+ skip_reason = AV_RL8(side + 8);
+ discard_reason = AV_RL8(side + 9);
+ }
+ if (avctx->internal->skip_samples > 0 && *got_frame_ptr &&
+ !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
+ if(frame->nb_samples <= avctx->internal->skip_samples){
+ *got_frame_ptr = 0;
+ avctx->internal->skip_samples -= frame->nb_samples;
+ av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
+ avctx->internal->skip_samples);
+ } else {
+ av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
+ frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
+ if(avctx->pkt_timebase.num && avctx->sample_rate) {
+ int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
+ (AVRational){1, avctx->sample_rate},
+ avctx->pkt_timebase);
+ if(frame->pkt_pts!=AV_NOPTS_VALUE)
+ frame->pkt_pts += diff_ts;
+ if(frame->pkt_dts!=AV_NOPTS_VALUE)
+ frame->pkt_dts += diff_ts;
+ if (av_frame_get_pkt_duration(frame) >= diff_ts)
+ av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts);
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
+ }
+ av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
+ avctx->internal->skip_samples, frame->nb_samples);
+ frame->nb_samples -= avctx->internal->skip_samples;
+ avctx->internal->skip_samples = 0;
+ }
+ }
+
+ if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr &&
+ !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
+ if (discard_padding == frame->nb_samples) {
+ *got_frame_ptr = 0;
+ } else {
+ if(avctx->pkt_timebase.num && avctx->sample_rate) {
+ int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
+ (AVRational){1, avctx->sample_rate},
+ avctx->pkt_timebase);
+ av_frame_set_pkt_duration(frame, diff_ts);
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
+ }
+ av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
+ (int)discard_padding, frame->nb_samples);
+ frame->nb_samples -= discard_padding;
+ }
+ }
+
+ if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) {
+ AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
+ if (fside) {
+ AV_WL32(fside->data, avctx->internal->skip_samples);
+ AV_WL32(fside->data + 4, discard_padding);
+ AV_WL8(fside->data + 8, skip_reason);
+ AV_WL8(fside->data + 9, discard_reason);
+ avctx->internal->skip_samples = 0;
+ }
+ }
+fail:
+ avctx->internal->pkt = NULL;
+ if (did_split) {
+ av_packet_free_side_data(&tmp);
+ if(ret == tmp.size)
+ ret = avpkt->size;
+ }
+
+ if (ret >= 0 && *got_frame_ptr) {
+ if (!avctx->refcounted_frames) {
+ int err = unrefcount_frame(avci, frame);
+ if (err < 0)
+ return err;
+ }
+ } else
+ av_frame_unref(frame);
+ }
+
+ av_assert0(ret <= avpkt->size);
+
+ return ret;
+}
+
+#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
+static int recode_subtitle(AVCodecContext *avctx,
+ AVPacket *outpkt, const AVPacket *inpkt)
+{
+#if CONFIG_ICONV
+ iconv_t cd = (iconv_t)-1;
+ int ret = 0;
+ char *inb, *outb;
+ size_t inl, outl;
+ AVPacket tmp;
+#endif
+
+ if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
+ return 0;
+
+#if CONFIG_ICONV
+ cd = iconv_open("UTF-8", avctx->sub_charenc);
+ av_assert0(cd != (iconv_t)-1);
+
+ inb = inpkt->data;
+ inl = inpkt->size;
+
+ if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
+ av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+
+ ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
+ if (ret < 0)
+ goto end;
+ outpkt->buf = tmp.buf;
+ outpkt->data = tmp.data;
+ outpkt->size = tmp.size;
+ outb = outpkt->data;
+ outl = outpkt->size;
+
+ if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
+ iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
+ outl >= outpkt->size || inl != 0) {
+ ret = FFMIN(AVERROR(errno), -1);
+ av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
+ "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
+ av_packet_unref(&tmp);
+ goto end;
+ }
+ outpkt->size -= outl;
+ memset(outpkt->data + outpkt->size, 0, outl);
+
+end:
+ if (cd != (iconv_t)-1)
+ iconv_close(cd);
+ return ret;
+#else
+ av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
+ return AVERROR(EINVAL);
+#endif
+}
+
+static int utf8_check(const uint8_t *str)
+{
+ const uint8_t *byte;
+ uint32_t codepoint, min;
+
+ while (*str) {
+ byte = str;
+ GET_UTF8(codepoint, *(byte++), return 0;);
+ min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
+ 1 << (5 * (byte - str) - 4);
+ if (codepoint < min || codepoint >= 0x110000 ||
+ codepoint == 0xFFFE /* BOM */ ||
+ codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
+ return 0;
+ str = byte;
+ }
+ return 1;
+}
+
+#if FF_API_ASS_TIMING
+static void insert_ts(AVBPrint *buf, int ts)
+{
+ if (ts == -1) {
+ av_bprintf(buf, "9:59:59.99,");
+ } else {
+ int h, m, s;
+
+ h = ts/360000; ts -= 360000*h;
+ m = ts/ 6000; ts -= 6000*m;
+ s = ts/ 100; ts -= 100*s;
+ av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
+ }
+}
+
+static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
+{
+ int i;
+ AVBPrint buf;
+
+ av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
+
+ for (i = 0; i < sub->num_rects; i++) {
+ char *final_dialog;
+ const char *dialog;
+ AVSubtitleRect *rect = sub->rects[i];
+ int ts_start, ts_duration = -1;
+ long int layer;
+
+ if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
+ continue;
+
+ av_bprint_clear(&buf);
+
+ /* skip ReadOrder */
+ dialog = strchr(rect->ass, ',');
+ if (!dialog)
+ continue;
+ dialog++;
+
+ /* extract Layer or Marked */
+ layer = strtol(dialog, (char**)&dialog, 10);
+ if (*dialog != ',')
+ continue;
+ dialog++;
+
+ /* rescale timing to ASS time base (ms) */
+ ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
+ if (pkt->duration != -1)
+ ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
+ sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
+
+ /* construct ASS (standalone file form with timestamps) string */
+ av_bprintf(&buf, "Dialogue: %ld,", layer);
+ insert_ts(&buf, ts_start);
+ insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
+ av_bprintf(&buf, "%s\r\n", dialog);
+
+ final_dialog = av_strdup(buf.str);
+ if (!av_bprint_is_complete(&buf) || !final_dialog) {
+ av_freep(&final_dialog);
+ av_bprint_finalize(&buf, NULL);
+ return AVERROR(ENOMEM);
+ }
+ av_freep(&rect->ass);
+ rect->ass = final_dialog;
+ }
+
+ av_bprint_finalize(&buf, NULL);
+ return 0;
+}
+#endif
+
+int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
+ int *got_sub_ptr,
+ AVPacket *avpkt)
+{
+ int i, ret = 0;
+
+ if (!avpkt->data && avpkt->size) {
+ av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
+ return AVERROR(EINVAL);
+ }
+ if (!avctx->codec)
+ return AVERROR(EINVAL);
+ if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
+ return AVERROR(EINVAL);
+ }
+
+ *got_sub_ptr = 0;
+ get_subtitle_defaults(sub);
+
+ if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
+ AVPacket pkt_recoded;
+ AVPacket tmp = *avpkt;
+ int did_split = av_packet_split_side_data(&tmp);
+ //apply_param_change(avctx, &tmp);
+
+ if (did_split) {
+ /* FFMIN() prevents overflow in case the packet wasn't allocated with
+ * proper padding.
+ * If the side data is smaller than the buffer padding size, the
+ * remaining bytes should have already been filled with zeros by the
+ * original packet allocation anyway. */
+ memset(tmp.data + tmp.size, 0,
+ FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE));
+ }
+
+ pkt_recoded = tmp;
+ ret = recode_subtitle(avctx, &pkt_recoded, &tmp);
+ if (ret < 0) {
+ *got_sub_ptr = 0;
+ } else {
+ avctx->internal->pkt = &pkt_recoded;
+
+ if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
+ sub->pts = av_rescale_q(avpkt->pts,
+ avctx->pkt_timebase, AV_TIME_BASE_Q);
+ ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
+ av_assert1((ret >= 0) >= !!*got_sub_ptr &&
+ !!*got_sub_ptr >= !!sub->num_rects);
+
+#if FF_API_ASS_TIMING
+ if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
+ && *got_sub_ptr && sub->num_rects) {
+ const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
+ : avctx->time_base;
+ int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
+ if (err < 0)
+ ret = err;
+ }
+#endif
+
+ if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
+ avctx->pkt_timebase.num) {
+ AVRational ms = { 1, 1000 };
+ sub->end_display_time = av_rescale_q(avpkt->duration,
+ avctx->pkt_timebase, ms);
+ }
+
+ for (i = 0; i < sub->num_rects; i++) {
+ if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid UTF-8 in decoded subtitles text; "
+ "maybe missing -sub_charenc option\n");
+ avsubtitle_free(sub);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ if (tmp.data != pkt_recoded.data) { // did we recode?
+ /* prevent from destroying side data from original packet */
+ pkt_recoded.side_data = NULL;
+ pkt_recoded.side_data_elems = 0;
+
+ av_packet_unref(&pkt_recoded);
+ }
+ if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
+ sub->format = 0;
+ else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
+ sub->format = 1;
+ avctx->internal->pkt = NULL;
+ }
+
+ if (did_split) {
+ av_packet_free_side_data(&tmp);
+ if(ret == tmp.size)
+ ret = avpkt->size;
+ }
+
+ if (*got_sub_ptr)
+ avctx->frame_number++;
+ }
+
+ return ret;
+}
+
+void avsubtitle_free(AVSubtitle *sub)
+{
+ int i;
+
+ for (i = 0; i < sub->num_rects; i++) {
+ av_freep(&sub->rects[i]->data[0]);
+ av_freep(&sub->rects[i]->data[1]);
+ av_freep(&sub->rects[i]->data[2]);
+ av_freep(&sub->rects[i]->data[3]);
+ av_freep(&sub->rects[i]->text);
+ av_freep(&sub->rects[i]->ass);
+ av_freep(&sub->rects[i]);
+ }
+
+ av_freep(&sub->rects);
+
+ memset(sub, 0, sizeof(AVSubtitle));
+}
+
+static int do_decode(AVCodecContext *avctx, AVPacket *pkt)
+{
+ int got_frame;
+ int ret;
+
+ av_assert0(!avctx->internal->buffer_frame->buf[0]);
+
+ if (!pkt)
+ pkt = avctx->internal->buffer_pkt;
+
+ // This is the lesser evil. The field is for compatibility with legacy users
+ // of the legacy API, and users using the new API should not be forced to
+ // even know about this field.
+ avctx->refcounted_frames = 1;
+
+ // Some codecs (at least wma lossless) will crash when feeding drain packets
+ // after EOF was signaled.
+ if (avctx->internal->draining_done)
+ return AVERROR_EOF;
+
+ if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame,
+ &got_frame, pkt);
+ if (ret >= 0)
+ ret = pkt->size;
+ } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+ ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame,
+ &got_frame, pkt);
+ } else {
+ ret = AVERROR(EINVAL);
+ }
+
+ if (ret == AVERROR(EAGAIN))
+ ret = pkt->size;
+
+ if (ret < 0)
+ return ret;
+
+ if (avctx->internal->draining && !got_frame)
+ avctx->internal->draining_done = 1;
+
+ if (ret >= pkt->size) {
+ av_packet_unref(avctx->internal->buffer_pkt);
+ } else {
+ int consumed = ret;
+
+ if (pkt != avctx->internal->buffer_pkt) {
+ av_packet_unref(avctx->internal->buffer_pkt);
+ if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0)
+ return ret;
+ }
+
+ avctx->internal->buffer_pkt->data += consumed;
+ avctx->internal->buffer_pkt->size -= consumed;
+ avctx->internal->buffer_pkt->pts = AV_NOPTS_VALUE;
+ avctx->internal->buffer_pkt->dts = AV_NOPTS_VALUE;
+ }
+
+ if (got_frame)
+ av_assert0(avctx->internal->buffer_frame->buf[0]);
+
+ return 0;
+}
+
+int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
+{
+ int ret;
+
+ if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
+ return AVERROR(EINVAL);
+
+ if (avctx->internal->draining)
+ return AVERROR_EOF;
+
+ if (!avpkt || !avpkt->size) {
+ avctx->internal->draining = 1;
+ avpkt = NULL;
+
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+ return 0;
+ }
+
+ if (avctx->codec->send_packet) {
+ if (avpkt) {
+ AVPacket tmp = *avpkt;
+ int did_split = av_packet_split_side_data(&tmp);
+ ret = apply_param_change(avctx, &tmp);
+ if (ret >= 0)
+ ret = avctx->codec->send_packet(avctx, &tmp);
+ if (did_split)
+ av_packet_free_side_data(&tmp);
+ return ret;
+ } else {
+ return avctx->codec->send_packet(avctx, NULL);
+ }
+ }
+
+ // Emulation via old API. Assume avpkt is likely not refcounted, while
+ // decoder output is always refcounted, and avoid copying.
+
+ if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0])
+ return AVERROR(EAGAIN);
+
+ // The goal is decoding the first frame of the packet without using memcpy,
+ // because the common case is having only 1 frame per packet (especially
+ // with video, but audio too). In other cases, it can't be avoided, unless
+ // the user is feeding refcounted packets.
+ return do_decode(avctx, (AVPacket *)avpkt);
+}
+
+int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+ int ret;
+
+ av_frame_unref(frame);
+
+ if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
+ return AVERROR(EINVAL);
+
+ if (avctx->codec->receive_frame) {
+ if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+ return AVERROR_EOF;
+ return avctx->codec->receive_frame(avctx, frame);
+ }
+
+ // Emulation via old API.
+
+ if (!avctx->internal->buffer_frame->buf[0]) {
+ if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining)
+ return AVERROR(EAGAIN);
+
+ while (1) {
+ if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) {
+ av_packet_unref(avctx->internal->buffer_pkt);
+ return ret;
+ }
+ // Some audio decoders may consume partial data without returning
+ // a frame (fate-wmapro-2ch). There is no way to make the caller
+ // call avcodec_receive_frame() again without returning a frame,
+ // so try to decode more in these cases.
+ if (avctx->internal->buffer_frame->buf[0] ||
+ !avctx->internal->buffer_pkt->size)
+ break;
+ }
+ }
+
+ if (!avctx->internal->buffer_frame->buf[0])
+ return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN);
+
+ av_frame_move_ref(frame, avctx->internal->buffer_frame);
+ return 0;
+}
+
+static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet)
+{
+ int ret;
+ *got_packet = 0;
+
+ av_packet_unref(avctx->internal->buffer_pkt);
+ avctx->internal->buffer_pkt_valid = 0;
+
+ if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+ ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt,
+ frame, got_packet);
+ } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+ ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt,
+ frame, got_packet);
+ } else {
+ ret = AVERROR(EINVAL);
+ }
+
+ if (ret >= 0 && *got_packet) {
+ // Encoders must always return ref-counted buffers.
+ // Side-data only packets have no data and can be not ref-counted.
+ av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf);
+ avctx->internal->buffer_pkt_valid = 1;
+ ret = 0;
+ } else {
+ av_packet_unref(avctx->internal->buffer_pkt);
+ }
+
+ return ret;
+}
+
+int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
+{
+ if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
+ return AVERROR(EINVAL);
+
+ if (avctx->internal->draining)
+ return AVERROR_EOF;
+
+ if (!frame) {
+ avctx->internal->draining = 1;
+
+ if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+ return 0;
+ }
+
+ if (avctx->codec->send_frame)
+ return avctx->codec->send_frame(avctx, frame);
+
+ // Emulation via old API. Do it here instead of avcodec_receive_packet, because:
+ // 1. if the AVFrame is not refcounted, the copying will be much more
+ // expensive than copying the packet data
+ // 2. assume few users use non-refcounted AVPackets, so usually no copy is
+ // needed
+
+ if (avctx->internal->buffer_pkt_valid)
+ return AVERROR(EAGAIN);
+
+ return do_encode(avctx, frame, &(int){0});
+}
+
+int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ av_packet_unref(avpkt);
+
+ if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
+ return AVERROR(EINVAL);
+
+ if (avctx->codec->receive_packet) {
+ if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+ return AVERROR_EOF;
+ return avctx->codec->receive_packet(avctx, avpkt);
+ }
+
+ // Emulation via old API.
+
+ if (!avctx->internal->buffer_pkt_valid) {
+ int got_packet;
+ int ret;
+ if (!avctx->internal->draining)
+ return AVERROR(EAGAIN);
+ ret = do_encode(avctx, NULL, &got_packet);
+ if (ret < 0)
+ return ret;
+ if (ret >= 0 && !got_packet)
+ return AVERROR_EOF;
+ }
+
+ av_packet_move_ref(avpkt, avctx->internal->buffer_pkt);
+ avctx->internal->buffer_pkt_valid = 0;
+ return 0;
+}
+
+av_cold int avcodec_close(AVCodecContext *avctx)
+{
+ int i;
+
+ if (!avctx)
+ return 0;
+
+ if (avcodec_is_open(avctx)) {
+ FramePool *pool = avctx->internal->pool;
+ if (CONFIG_FRAME_THREAD_ENCODER &&
+ avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
+ ff_frame_thread_encoder_free(avctx);
+ }
+ if (HAVE_THREADS && avctx->internal->thread_ctx)
+ ff_thread_free(avctx);
+ if (avctx->codec && avctx->codec->close)
+ avctx->codec->close(avctx);
+ avctx->internal->byte_buffer_size = 0;
+ av_freep(&avctx->internal->byte_buffer);
+ av_frame_free(&avctx->internal->to_free);
+ av_frame_free(&avctx->internal->buffer_frame);
+ av_packet_free(&avctx->internal->buffer_pkt);
+ for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
+ av_buffer_pool_uninit(&pool->pools[i]);
+ av_freep(&avctx->internal->pool);
+
+ if (avctx->hwaccel && avctx->hwaccel->uninit)
+ avctx->hwaccel->uninit(avctx);
+ av_freep(&avctx->internal->hwaccel_priv_data);
+
+ av_freep(&avctx->internal);
+ }
+
+ for (i = 0; i < avctx->nb_coded_side_data; i++)
+ av_freep(&avctx->coded_side_data[i].data);
+ av_freep(&avctx->coded_side_data);
+ avctx->nb_coded_side_data = 0;
+
+ av_buffer_unref(&avctx->hw_frames_ctx);
+
+ if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
+ av_opt_free(avctx->priv_data);
+ av_opt_free(avctx);
+ av_freep(&avctx->priv_data);
+ if (av_codec_is_encoder(avctx->codec)) {
+ av_freep(&avctx->extradata);
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ }
+ avctx->codec = NULL;
+ avctx->active_thread_type = 0;
+
+ return 0;
+}
+
+static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
+{
+ switch(id){
+ //This is for future deprecatec codec ids, its empty since
+ //last major bump but will fill up again over time, please don't remove it
+ default : return id;
+ }
+}
+
+static AVCodec *find_encdec(enum AVCodecID id, int encoder)
+{
+ AVCodec *p, *experimental = NULL;
+ p = first_avcodec;
+ id= remap_deprecated_codec_id(id);
+ while (p) {
+ if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
+ p->id == id) {
+ if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
+ experimental = p;
+ } else
+ return p;
+ }
+ p = p->next;
+ }
+ return experimental;
+}
+
+AVCodec *avcodec_find_encoder(enum AVCodecID id)
+{
+ return find_encdec(id, 1);
+}
+
+AVCodec *avcodec_find_encoder_by_name(const char *name)
+{
+ AVCodec *p;
+ if (!name)
+ return NULL;
+ p = first_avcodec;
+ while (p) {
+ if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
+ return p;
+ p = p->next;
+ }
+ return NULL;
+}
+
+AVCodec *avcodec_find_decoder(enum AVCodecID id)
+{
+ return find_encdec(id, 0);
+}
+
+AVCodec *avcodec_find_decoder_by_name(const char *name)
+{
+ AVCodec *p;
+ if (!name)
+ return NULL;
+ p = first_avcodec;
+ while (p) {
+ if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
+ return p;
+ p = p->next;
+ }
+ return NULL;
+}
+
+const char *avcodec_get_name(enum AVCodecID id)
+{
+ const AVCodecDescriptor *cd;
+ AVCodec *codec;
+
+ if (id == AV_CODEC_ID_NONE)
+ return "none";
+ cd = avcodec_descriptor_get(id);
+ if (cd)
+ return cd->name;
+ av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
+ codec = avcodec_find_decoder(id);
+ if (codec)
+ return codec->name;
+ codec = avcodec_find_encoder(id);
+ if (codec)
+ return codec->name;
+ return "unknown_codec";
+}
+
+size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
+{
+ int i, len, ret = 0;
+
+#define TAG_PRINT(x) \
+ (((x) >= '0' && (x) <= '9') || \
+ ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
+ ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
+
+ for (i = 0; i < 4; i++) {
+ len = snprintf(buf, buf_size,
+ TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
+ buf += len;
+ buf_size = buf_size > len ? buf_size - len : 0;
+ ret += len;
+ codec_tag >>= 8;
+ }
+ return ret;
+}
+
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
+{
+ const char *codec_type;
+ const char *codec_name;
+ const char *profile = NULL;
+ int64_t bitrate;
+ int new_line = 0;
+ AVRational display_aspect_ratio;
+ const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
+
+ if (!buf || buf_size <= 0)
+ return;
+ codec_type = av_get_media_type_string(enc->codec_type);
+ codec_name = avcodec_get_name(enc->codec_id);
+ profile = avcodec_profile_name(enc->codec_id, enc->profile);
+
+ snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
+ codec_name);
+ buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
+
+ if (enc->codec && strcmp(enc->codec->name, codec_name))
+ snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
+
+ if (profile)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
+ if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
+ && av_log_get_level() >= AV_LOG_VERBOSE
+ && enc->refs)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %d reference frame%s",
+ enc->refs, enc->refs > 1 ? "s" : "");
+
+ if (enc->codec_tag) {
+ char tag_buf[32];
+ av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " (%s / 0x%04X)", tag_buf, enc->codec_tag);
+ }
+
+ switch (enc->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ {
+ char detail[256] = "(";
+
+ av_strlcat(buf, separator, buf_size);
+
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
+ av_get_pix_fmt_name(enc->pix_fmt));
+ if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
+ enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
+ av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
+ if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
+ av_strlcatf(detail, sizeof(detail), "%s, ",
+ av_color_range_name(enc->color_range));
+
+ if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
+ enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
+ enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
+ if (enc->colorspace != (int)enc->color_primaries ||
+ enc->colorspace != (int)enc->color_trc) {
+ new_line = 1;
+ av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
+ av_color_space_name(enc->colorspace),
+ av_color_primaries_name(enc->color_primaries),
+ av_color_transfer_name(enc->color_trc));
+ } else
+ av_strlcatf(detail, sizeof(detail), "%s, ",
+ av_get_colorspace_name(enc->colorspace));
+ }
+
+ if (av_log_get_level() >= AV_LOG_DEBUG &&
+ enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
+ av_strlcatf(detail, sizeof(detail), "%s, ",
+ av_chroma_location_name(enc->chroma_sample_location));
+
+ if (strlen(detail) > 1) {
+ detail[strlen(detail) - 2] = 0;
+ av_strlcatf(buf, buf_size, "%s)", detail);
+ }
+ }
+
+ if (enc->width) {
+ av_strlcat(buf, new_line ? separator : ", ", buf_size);
+
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ "%dx%d",
+ enc->width, enc->height);
+
+ if (av_log_get_level() >= AV_LOG_VERBOSE &&
+ (enc->width != enc->coded_width ||
+ enc->height != enc->coded_height))
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " (%dx%d)", enc->coded_width, enc->coded_height);
+
+ if (enc->sample_aspect_ratio.num) {
+ av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
+ enc->width * (int64_t)enc->sample_aspect_ratio.num,
+ enc->height * (int64_t)enc->sample_aspect_ratio.den,
+ 1024 * 1024);
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " [SAR %d:%d DAR %d:%d]",
+ enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
+ display_aspect_ratio.num, display_aspect_ratio.den);
+ }
+ if (av_log_get_level() >= AV_LOG_DEBUG) {
+ int g = av_gcd(enc->time_base.num, enc->time_base.den);
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %d/%d",
+ enc->time_base.num / g, enc->time_base.den / g);
+ }
+ }
+ if (encode) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", q=%d-%d", enc->qmin, enc->qmax);
+ } else {
+ if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", Closed Captions");
+ if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", lossless");
+ }
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ av_strlcat(buf, separator, buf_size);
+
+ if (enc->sample_rate) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ "%d Hz, ", enc->sample_rate);
+ }
+ av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
+ if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %s", av_get_sample_fmt_name(enc->sample_fmt));
+ }
+ if ( enc->bits_per_raw_sample > 0
+ && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ " (%d bit)", enc->bits_per_raw_sample);
+ break;
+ case AVMEDIA_TYPE_DATA:
+ if (av_log_get_level() >= AV_LOG_DEBUG) {
+ int g = av_gcd(enc->time_base.num, enc->time_base.den);
+ if (g)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %d/%d",
+ enc->time_base.num / g, enc->time_base.den / g);
+ }
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ if (enc->width)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %dx%d", enc->width, enc->height);
+ break;
+ default:
+ return;
+ }
+ if (encode) {
+ if (enc->flags & AV_CODEC_FLAG_PASS1)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", pass 1");
+ if (enc->flags & AV_CODEC_FLAG_PASS2)
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", pass 2");
+ }
+ bitrate = get_bit_rate(enc);
+ if (bitrate != 0) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", %"PRId64" kb/s", bitrate / 1000);
+ } else if (enc->rc_max_rate > 0) {
+ snprintf(buf + strlen(buf), buf_size - strlen(buf),
+ ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000);
+ }
+}
+
+const char *av_get_profile_name(const AVCodec *codec, int profile)
+{
+ const AVProfile *p;
+ if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
+ return NULL;
+
+ for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
+ if (p->profile == profile)
+ return p->name;
+
+ return NULL;
+}
+
+const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
+{
+ const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
+ const AVProfile *p;
+
+ if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
+ return NULL;
+
+ for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
+ if (p->profile == profile)
+ return p->name;
+
+ return NULL;
+}
+
+unsigned avcodec_version(void)
+{
+// av_assert0(AV_CODEC_ID_V410==164);
+ av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
+ av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
+// av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
+ av_assert0(AV_CODEC_ID_SRT==94216);
+ av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
+
+ return LIBAVCODEC_VERSION_INT;
+}
+
+const char *avcodec_configuration(void)
+{
+ return FFMPEG_CONFIGURATION;
+}
+
+const char *avcodec_license(void)
+{
+#define LICENSE_PREFIX "libavcodec license: "
+ return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+void avcodec_flush_buffers(AVCodecContext *avctx)
+{
+ avctx->internal->draining = 0;
+ avctx->internal->draining_done = 0;
+ av_frame_unref(avctx->internal->buffer_frame);
+ av_packet_unref(avctx->internal->buffer_pkt);
+ avctx->internal->buffer_pkt_valid = 0;
+
+ if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
+ ff_thread_flush(avctx);
+ else if (avctx->codec->flush)
+ avctx->codec->flush(avctx);
+
+ avctx->pts_correction_last_pts =
+ avctx->pts_correction_last_dts = INT64_MIN;
+
+ if (!avctx->refcounted_frames)
+ av_frame_unref(avctx->internal->to_free);
+}
+
+int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
+{
+ switch (codec_id) {
+ case AV_CODEC_ID_8SVX_EXP:
+ case AV_CODEC_ID_8SVX_FIB:
+ case AV_CODEC_ID_ADPCM_CT:
+ case AV_CODEC_ID_ADPCM_IMA_APC:
+ case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
+ case AV_CODEC_ID_ADPCM_IMA_OKI:
+ case AV_CODEC_ID_ADPCM_IMA_WS:
+ case AV_CODEC_ID_ADPCM_G722:
+ case AV_CODEC_ID_ADPCM_YAMAHA:
+ case AV_CODEC_ID_ADPCM_AICA:
+ return 4;
+ case AV_CODEC_ID_DSD_LSBF:
+ case AV_CODEC_ID_DSD_MSBF:
+ case AV_CODEC_ID_DSD_LSBF_PLANAR:
+ case AV_CODEC_ID_DSD_MSBF_PLANAR:
+ case AV_CODEC_ID_PCM_ALAW:
+ case AV_CODEC_ID_PCM_MULAW:
+ case AV_CODEC_ID_PCM_S8:
+ case AV_CODEC_ID_PCM_S8_PLANAR:
+ case AV_CODEC_ID_PCM_U8:
+ case AV_CODEC_ID_PCM_ZORK:
+ case AV_CODEC_ID_SDX2_DPCM:
+ return 8;
+ case AV_CODEC_ID_PCM_S16BE:
+ case AV_CODEC_ID_PCM_S16BE_PLANAR:
+ case AV_CODEC_ID_PCM_S16LE:
+ case AV_CODEC_ID_PCM_S16LE_PLANAR:
+ case AV_CODEC_ID_PCM_U16BE:
+ case AV_CODEC_ID_PCM_U16LE:
+ return 16;
+ case AV_CODEC_ID_PCM_S24DAUD:
+ case AV_CODEC_ID_PCM_S24BE:
+ case AV_CODEC_ID_PCM_S24LE:
+ case AV_CODEC_ID_PCM_S24LE_PLANAR:
+ case AV_CODEC_ID_PCM_U24BE:
+ case AV_CODEC_ID_PCM_U24LE:
+ return 24;
+ case AV_CODEC_ID_PCM_S32BE:
+ case AV_CODEC_ID_PCM_S32LE:
+ case AV_CODEC_ID_PCM_S32LE_PLANAR:
+ case AV_CODEC_ID_PCM_U32BE:
+ case AV_CODEC_ID_PCM_U32LE:
+ case AV_CODEC_ID_PCM_F32BE:
+ case AV_CODEC_ID_PCM_F32LE:
+ return 32;
+ case AV_CODEC_ID_PCM_F64BE:
+ case AV_CODEC_ID_PCM_F64LE:
+ return 64;
+ default:
+ return 0;
+ }
+}
+
+enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
+{
+ static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
+ [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
+ [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
+ [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+ [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
+ [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
+ [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
+ [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
+ [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+ [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
+ [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
+ };
+ if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
+ return AV_CODEC_ID_NONE;
+ if (be < 0 || be > 1)
+ be = AV_NE(1, 0);
+ return map[fmt][be];
+}
+
+int av_get_bits_per_sample(enum AVCodecID codec_id)
+{
+ switch (codec_id) {
+ case AV_CODEC_ID_ADPCM_SBPRO_2:
+ return 2;
+ case AV_CODEC_ID_ADPCM_SBPRO_3:
+ return 3;
+ case AV_CODEC_ID_ADPCM_SBPRO_4:
+ case AV_CODEC_ID_ADPCM_IMA_WAV:
+ case AV_CODEC_ID_ADPCM_IMA_QT:
+ case AV_CODEC_ID_ADPCM_SWF:
+ case AV_CODEC_ID_ADPCM_MS:
+ return 4;
+ default:
+ return av_get_exact_bits_per_sample(codec_id);
+ }
+}
+
+static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
+ uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
+ uint8_t * extradata, int frame_size, int frame_bytes)
+{
+ int bps = av_get_exact_bits_per_sample(id);
+ int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
+
+ /* codecs with an exact constant bits per sample */
+ if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
+ return (frame_bytes * 8LL) / (bps * ch);
+ bps = bits_per_coded_sample;
+
+ /* codecs with a fixed packet duration */
+ switch (id) {
+ case AV_CODEC_ID_ADPCM_ADX: return 32;
+ case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
+ case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
+ case AV_CODEC_ID_AMR_NB:
+ case AV_CODEC_ID_EVRC:
+ case AV_CODEC_ID_GSM:
+ case AV_CODEC_ID_QCELP:
+ case AV_CODEC_ID_RA_288: return 160;
+ case AV_CODEC_ID_AMR_WB:
+ case AV_CODEC_ID_GSM_MS: return 320;
+ case AV_CODEC_ID_MP1: return 384;
+ case AV_CODEC_ID_ATRAC1: return 512;
+ case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
+ case AV_CODEC_ID_ATRAC3P: return 2048;
+ case AV_CODEC_ID_MP2:
+ case AV_CODEC_ID_MUSEPACK7: return 1152;
+ case AV_CODEC_ID_AC3: return 1536;
+ }
+
+ if (sr > 0) {
+ /* calc from sample rate */
+ if (id == AV_CODEC_ID_TTA)
+ return 256 * sr / 245;
+ else if (id == AV_CODEC_ID_DST)
+ return 588 * sr / 44100;
+
+ if (ch > 0) {
+ /* calc from sample rate and channels */
+ if (id == AV_CODEC_ID_BINKAUDIO_DCT)
+ return (480 << (sr / 22050)) / ch;
+ }
+ }
+
+ if (ba > 0) {
+ /* calc from block_align */
+ if (id == AV_CODEC_ID_SIPR) {
+ switch (ba) {
+ case 20: return 160;
+ case 19: return 144;
+ case 29: return 288;
+ case 37: return 480;
+ }
+ } else if (id == AV_CODEC_ID_ILBC) {
+ switch (ba) {
+ case 38: return 160;
+ case 50: return 240;
+ }
+ }
+ }
+
+ if (frame_bytes > 0) {
+ /* calc from frame_bytes only */
+ if (id == AV_CODEC_ID_TRUESPEECH)
+ return 240 * (frame_bytes / 32);
+ if (id == AV_CODEC_ID_NELLYMOSER)
+ return 256 * (frame_bytes / 64);
+ if (id == AV_CODEC_ID_RA_144)
+ return 160 * (frame_bytes / 20);
+ if (id == AV_CODEC_ID_G723_1)
+ return 240 * (frame_bytes / 24);
+
+ if (bps > 0) {
+ /* calc from frame_bytes and bits_per_coded_sample */
+ if (id == AV_CODEC_ID_ADPCM_G726)
+ return frame_bytes * 8 / bps;
+ }
+
+ if (ch > 0 && ch < INT_MAX/16) {
+ /* calc from frame_bytes and channels */
+ switch (id) {
+ case AV_CODEC_ID_ADPCM_AFC:
+ return frame_bytes / (9 * ch) * 16;
+ case AV_CODEC_ID_ADPCM_PSX:
+ case AV_CODEC_ID_ADPCM_DTK:
+ return frame_bytes / (16 * ch) * 28;
+ case AV_CODEC_ID_ADPCM_4XM:
+ case AV_CODEC_ID_ADPCM_IMA_DAT4:
+ case AV_CODEC_ID_ADPCM_IMA_ISS:
+ return (frame_bytes - 4 * ch) * 2 / ch;
+ case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
+ return (frame_bytes - 4) * 2 / ch;
+ case AV_CODEC_ID_ADPCM_IMA_AMV:
+ return (frame_bytes - 8) * 2 / ch;
+ case AV_CODEC_ID_ADPCM_THP:
+ case AV_CODEC_ID_ADPCM_THP_LE:
+ if (extradata)
+ return frame_bytes * 14 / (8 * ch);
+ break;
+ case AV_CODEC_ID_ADPCM_XA:
+ return (frame_bytes / 128) * 224 / ch;
+ case AV_CODEC_ID_INTERPLAY_DPCM:
+ return (frame_bytes - 6 - ch) / ch;
+ case AV_CODEC_ID_ROQ_DPCM:
+ return (frame_bytes - 8) / ch;
+ case AV_CODEC_ID_XAN_DPCM:
+ return (frame_bytes - 2 * ch) / ch;
+ case AV_CODEC_ID_MACE3:
+ return 3 * frame_bytes / ch;
+ case AV_CODEC_ID_MACE6:
+ return 6 * frame_bytes / ch;
+ case AV_CODEC_ID_PCM_LXF:
+ return 2 * (frame_bytes / (5 * ch));
+ case AV_CODEC_ID_IAC:
+ case AV_CODEC_ID_IMC:
+ return 4 * frame_bytes / ch;
+ }
+
+ if (tag) {
+ /* calc from frame_bytes, channels, and codec_tag */
+ if (id == AV_CODEC_ID_SOL_DPCM) {
+ if (tag == 3)
+ return frame_bytes / ch;
+ else
+ return frame_bytes * 2 / ch;
+ }
+ }
+
+ if (ba > 0) {
+ /* calc from frame_bytes, channels, and block_align */
+ int blocks = frame_bytes / ba;
+ switch (id) {
+ case AV_CODEC_ID_ADPCM_IMA_WAV:
+ if (bps < 2 || bps > 5)
+ return 0;
+ return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
+ case AV_CODEC_ID_ADPCM_IMA_DK3:
+ return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
+ case AV_CODEC_ID_ADPCM_IMA_DK4:
+ return blocks * (1 + (ba - 4 * ch) * 2 / ch);
+ case AV_CODEC_ID_ADPCM_IMA_RAD:
+ return blocks * ((ba - 4 * ch) * 2 / ch);
+ case AV_CODEC_ID_ADPCM_MS:
+ return blocks * (2 + (ba - 7 * ch) * 2 / ch);
+ case AV_CODEC_ID_ADPCM_MTAF:
+ return blocks * (ba - 16) * 2 / ch;
+ }
+ }
+
+ if (bps > 0) {
+ /* calc from frame_bytes, channels, and bits_per_coded_sample */
+ switch (id) {
+ case AV_CODEC_ID_PCM_DVD:
+ if(bps<4)
+ return 0;
+ return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
+ case AV_CODEC_ID_PCM_BLURAY:
+ if(bps<4)
+ return 0;
+ return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
+ case AV_CODEC_ID_S302M:
+ return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
+ }
+ }
+ }
+ }
+
+ /* Fall back on using frame_size */
+ if (frame_size > 1 && frame_bytes)
+ return frame_size;
+
+ //For WMA we currently have no other means to calculate duration thus we
+ //do it here by assuming CBR, which is true for all known cases.
+ if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
+ if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
+ return (frame_bytes * 8LL * sr) / bitrate;
+ }
+
+ return 0;
+}
+
+int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
+{
+ return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
+ avctx->channels, avctx->block_align,
+ avctx->codec_tag, avctx->bits_per_coded_sample,
+ avctx->bit_rate, avctx->extradata, avctx->frame_size,
+ frame_bytes);
+}
+
+int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
+{
+ return get_audio_frame_duration(par->codec_id, par->sample_rate,
+ par->channels, par->block_align,
+ par->codec_tag, par->bits_per_coded_sample,
+ par->bit_rate, par->extradata, par->frame_size,
+ frame_bytes);
+}
+
+#if !HAVE_THREADS
+int ff_thread_init(AVCodecContext *s)
+{
+ return -1;
+}
+
+#endif
+
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
+{
+ unsigned int n = 0;
+
+ while (v >= 0xff) {
+ *s++ = 0xff;
+ v -= 0xff;
+ n++;
+ }
+ *s = v;
+ n++;
+ return n;
+}
+
+int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
+{
+ int i;
+ for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
+ return i;
+}
+
+#if FF_API_MISSING_SAMPLE
+FF_DISABLE_DEPRECATION_WARNINGS
+void av_log_missing_feature(void *avc, const char *feature, int want_sample)
+{
+ av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
+ "version to the newest one from Git. If the problem still "
+ "occurs, it means that your file has a feature which has not "
+ "been implemented.\n", feature);
+ if(want_sample)
+ av_log_ask_for_sample(avc, NULL);
+}
+
+void av_log_ask_for_sample(void *avc, const char *msg, ...)
+{
+ va_list argument_list;
+
+ va_start(argument_list, msg);
+
+ if (msg)
+ av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
+ av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
+ "of this file to ftp://upload.ffmpeg.org/incoming/ "
+ "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
+
+ va_end(argument_list);
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif /* FF_API_MISSING_SAMPLE */
+
+static AVHWAccel *first_hwaccel = NULL;
+static AVHWAccel **last_hwaccel = &first_hwaccel;
+
+void av_register_hwaccel(AVHWAccel *hwaccel)
+{
+ AVHWAccel **p = last_hwaccel;
+ hwaccel->next = NULL;
+ while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel))
+ p = &(*p)->next;
+ last_hwaccel = &hwaccel->next;
+}
+
+AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
+{
+ return hwaccel ? hwaccel->next : first_hwaccel;
+}
+
+int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
+{
+ if (lockmgr_cb) {
+ // There is no good way to rollback a failure to destroy the
+ // mutex, so we ignore failures.
+ lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY);
+ lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY);
+ lockmgr_cb = NULL;
+ codec_mutex = NULL;
+ avformat_mutex = NULL;
+ }
+
+ if (cb) {
+ void *new_codec_mutex = NULL;
+ void *new_avformat_mutex = NULL;
+ int err;
+ if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) {
+ return err > 0 ? AVERROR_UNKNOWN : err;
+ }
+ if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) {
+ // Ignore failures to destroy the newly created mutex.
+ cb(&new_codec_mutex, AV_LOCK_DESTROY);
+ return err > 0 ? AVERROR_UNKNOWN : err;
+ }
+ lockmgr_cb = cb;
+ codec_mutex = new_codec_mutex;
+ avformat_mutex = new_avformat_mutex;
+ }
+
+ return 0;
+}
+
+int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
+{
+ if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
+ return 0;
+
+ if (lockmgr_cb) {
+ if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
+ return -1;
+ }
+
+ if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Insufficient thread locking. At least %d threads are "
+ "calling avcodec_open2() at the same time right now.\n",
+ entangled_thread_counter);
+ if (!lockmgr_cb)
+ av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n");
+ ff_avcodec_locked = 1;
+ ff_unlock_avcodec(codec);
+ return AVERROR(EINVAL);
+ }
+ av_assert0(!ff_avcodec_locked);
+ ff_avcodec_locked = 1;
+ return 0;
+}
+
+int ff_unlock_avcodec(const AVCodec *codec)
+{
+ if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init)
+ return 0;
+
+ av_assert0(ff_avcodec_locked);
+ ff_avcodec_locked = 0;
+ avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1);
+ if (lockmgr_cb) {
+ if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
+ return -1;
+ }
+
+ return 0;
+}
+
+int avpriv_lock_avformat(void)
+{
+ if (lockmgr_cb) {
+ if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
+ return -1;
+ }
+ return 0;
+}
+
+int avpriv_unlock_avformat(void)
+{
+ if (lockmgr_cb) {
+ if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
+ return -1;
+ }
+ return 0;
+}
+
+unsigned int avpriv_toupper4(unsigned int x)
+{
+ return av_toupper(x & 0xFF) +
+ (av_toupper((x >> 8) & 0xFF) << 8) +
+ (av_toupper((x >> 16) & 0xFF) << 16) +
+((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
+}
+
+int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
+{
+ int ret;
+
+ dst->owner = src->owner;
+
+ ret = av_frame_ref(dst->f, src->f);
+ if (ret < 0)
+ return ret;
+
+ av_assert0(!dst->progress);
+
+ if (src->progress &&
+ !(dst->progress = av_buffer_ref(src->progress))) {
+ ff_thread_release_buffer(dst->owner, dst);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+#if !HAVE_THREADS
+
+enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
+{
+ return ff_get_format(avctx, fmt);
+}
+
+int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
+{
+ f->owner = avctx;
+ return ff_get_buffer(avctx, f->f, flags);
+}
+
+void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
+{
+ if (f->f)
+ av_frame_unref(f->f);
+}
+
+void ff_thread_finish_setup(AVCodecContext *avctx)
+{
+}
+
+void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
+{
+}
+
+void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
+{
+}
+
+int ff_thread_can_start_frame(AVCodecContext *avctx)
+{
+ return 1;
+}
+
+int ff_alloc_entries(AVCodecContext *avctx, int count)
+{
+ return 0;
+}
+
+void ff_reset_entries(AVCodecContext *avctx)
+{
+}
+
+void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
+{
+}
+
+void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
+{
+}
+
+#endif
+
+int avcodec_is_open(AVCodecContext *s)
+{
+ return !!s->internal;
+}
+
+int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
+{
+ int ret;
+ char *str;
+
+ ret = av_bprint_finalize(buf, &str);
+ if (ret < 0)
+ return ret;
+ if (!av_bprint_is_complete(buf)) {
+ av_free(str);
+ return AVERROR(ENOMEM);
+ }
+
+ avctx->extradata = str;
+ /* Note: the string is NUL terminated (so extradata can be read as a
+ * string), but the ending character is not accounted in the size (in
+ * binary formats you are likely not supposed to mux that character). When
+ * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
+ * zeros. */
+ avctx->extradata_size = buf->len;
+ return 0;
+}
+
+const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
+ const uint8_t *end,
+ uint32_t *av_restrict state)
+{
+ int i;
+
+ av_assert0(p <= end);
+ if (p >= end)
+ return end;
+
+ for (i = 0; i < 3; i++) {
+ uint32_t tmp = *state << 8;
+ *state = tmp + *(p++);
+ if (tmp == 0x100 || p == end)
+ return p;
+ }
+
+ while (p < end) {
+ if (p[-1] > 1 ) p += 3;
+ else if (p[-2] ) p += 2;
+ else if (p[-3]|(p[-1]-1)) p++;
+ else {
+ p++;
+ break;
+ }
+ }
+
+ p = FFMIN(p, end) - 4;
+ *state = AV_RB32(p);
+
+ return p + 4;
+}
+
+AVCPBProperties *av_cpb_properties_alloc(size_t *size)
+{
+ AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
+ if (!props)
+ return NULL;
+
+ if (size)
+ *size = sizeof(*props);
+
+ props->vbv_delay = UINT64_MAX;
+
+ return props;
+}
+
+AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
+{
+ AVPacketSideData *tmp;
+ AVCPBProperties *props;
+ size_t size;
+
+ props = av_cpb_properties_alloc(&size);
+ if (!props)
+ return NULL;
+
+ tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
+ if (!tmp) {
+ av_freep(&props);
+ return NULL;
+ }
+
+ avctx->coded_side_data = tmp;
+ avctx->nb_coded_side_data++;
+
+ avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
+ avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
+ avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
+
+ return props;
+}
+
+static void codec_parameters_reset(AVCodecParameters *par)
+{
+ av_freep(&par->extradata);
+
+ memset(par, 0, sizeof(*par));
+
+ par->codec_type = AVMEDIA_TYPE_UNKNOWN;
+ par->codec_id = AV_CODEC_ID_NONE;
+ par->format = -1;
+ par->field_order = AV_FIELD_UNKNOWN;
+ par->color_range = AVCOL_RANGE_UNSPECIFIED;
+ par->color_primaries = AVCOL_PRI_UNSPECIFIED;
+ par->color_trc = AVCOL_TRC_UNSPECIFIED;
+ par->color_space = AVCOL_SPC_UNSPECIFIED;
+ par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
+ par->sample_aspect_ratio = (AVRational){ 0, 1 };
+ par->profile = FF_PROFILE_UNKNOWN;
+ par->level = FF_LEVEL_UNKNOWN;
+}
+
+AVCodecParameters *avcodec_parameters_alloc(void)
+{
+ AVCodecParameters *par = av_mallocz(sizeof(*par));
+
+ if (!par)
+ return NULL;
+ codec_parameters_reset(par);
+ return par;
+}
+
+void avcodec_parameters_free(AVCodecParameters **ppar)
+{
+ AVCodecParameters *par = *ppar;
+
+ if (!par)
+ return;
+ codec_parameters_reset(par);
+
+ av_freep(ppar);
+}
+
+int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
+{
+ codec_parameters_reset(dst);
+ memcpy(dst, src, sizeof(*dst));
+
+ dst->extradata = NULL;
+ dst->extradata_size = 0;
+ if (src->extradata) {
+ dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!dst->extradata)
+ return AVERROR(ENOMEM);
+ memcpy(dst->extradata, src->extradata, src->extradata_size);
+ dst->extradata_size = src->extradata_size;
+ }
+
+ return 0;
+}
+
+int avcodec_parameters_from_context(AVCodecParameters *par,
+ const AVCodecContext *codec)
+{
+ codec_parameters_reset(par);
+
+ par->codec_type = codec->codec_type;
+ par->codec_id = codec->codec_id;
+ par->codec_tag = codec->codec_tag;
+
+ par->bit_rate = codec->bit_rate;
+ par->bits_per_coded_sample = codec->bits_per_coded_sample;
+ par->bits_per_raw_sample = codec->bits_per_raw_sample;
+ par->profile = codec->profile;
+ par->level = codec->level;
+
+ switch (par->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ par->format = codec->pix_fmt;
+ par->width = codec->width;
+ par->height = codec->height;
+ par->field_order = codec->field_order;
+ par->color_range = codec->color_range;
+ par->color_primaries = codec->color_primaries;
+ par->color_trc = codec->color_trc;
+ par->color_space = codec->colorspace;
+ par->chroma_location = codec->chroma_sample_location;
+ par->sample_aspect_ratio = codec->sample_aspect_ratio;
+ par->video_delay = codec->has_b_frames;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ par->format = codec->sample_fmt;
+ par->channel_layout = codec->channel_layout;
+ par->channels = codec->channels;
+ par->sample_rate = codec->sample_rate;
+ par->block_align = codec->block_align;
+ par->frame_size = codec->frame_size;
+ par->initial_padding = codec->initial_padding;
+ par->seek_preroll = codec->seek_preroll;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ par->width = codec->width;
+ par->height = codec->height;
+ break;
+ }
+
+ if (codec->extradata) {
+ par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!par->extradata)
+ return AVERROR(ENOMEM);
+ memcpy(par->extradata, codec->extradata, codec->extradata_size);
+ par->extradata_size = codec->extradata_size;
+ }
+
+ return 0;
+}
+
+int avcodec_parameters_to_context(AVCodecContext *codec,
+ const AVCodecParameters *par)
+{
+ codec->codec_type = par->codec_type;
+ codec->codec_id = par->codec_id;
+ codec->codec_tag = par->codec_tag;
+
+ codec->bit_rate = par->bit_rate;
+ codec->bits_per_coded_sample = par->bits_per_coded_sample;
+ codec->bits_per_raw_sample = par->bits_per_raw_sample;
+ codec->profile = par->profile;
+ codec->level = par->level;
+
+ switch (par->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ codec->pix_fmt = par->format;
+ codec->width = par->width;
+ codec->height = par->height;
+ codec->field_order = par->field_order;
+ codec->color_range = par->color_range;
+ codec->color_primaries = par->color_primaries;
+ codec->color_trc = par->color_trc;
+ codec->colorspace = par->color_space;
+ codec->chroma_sample_location = par->chroma_location;
+ codec->sample_aspect_ratio = par->sample_aspect_ratio;
+ codec->has_b_frames = par->video_delay;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ codec->sample_fmt = par->format;
+ codec->channel_layout = par->channel_layout;
+ codec->channels = par->channels;
+ codec->sample_rate = par->sample_rate;
+ codec->block_align = par->block_align;
+ codec->frame_size = par->frame_size;
+ codec->delay =
+ codec->initial_padding = par->initial_padding;
+ codec->seek_preroll = par->seek_preroll;
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ codec->width = par->width;
+ codec->height = par->height;
+ break;
+ }
+
+ if (par->extradata) {
+ av_freep(&codec->extradata);
+ codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!codec->extradata)
+ return AVERROR(ENOMEM);
+ memcpy(codec->extradata, par->extradata, par->extradata_size);
+ codec->extradata_size = par->extradata_size;
+ }
+
+ return 0;
+}
+
+int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
+ void **data, size_t *sei_size)
+{
+ AVFrameSideData *side_data = NULL;
+ uint8_t *sei_data;
+
+ if (frame)
+ side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
+
+ if (!side_data) {
+ *data = NULL;
+ return 0;
+ }
+
+ *sei_size = side_data->size + 11;
+ *data = av_mallocz(*sei_size + prefix_len);
+ if (!*data)
+ return AVERROR(ENOMEM);
+ sei_data = (uint8_t*)*data + prefix_len;
+
+ // country code
+ sei_data[0] = 181;
+ sei_data[1] = 0;
+ sei_data[2] = 49;
+
+ /**
+ * 'GA94' is standard in North America for ATSC, but hard coding
+ * this style may not be the right thing to do -- other formats
+ * do exist. This information is not available in the side_data
+ * so we are going with this right now.
+ */
+ AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
+ sei_data[7] = 3;
+ sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
+ sei_data[9] = 0;
+
+ memcpy(sei_data + 10, side_data->data, side_data->size);
+
+ sei_data[side_data->size+10] = 255;
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 13:55:48 +0000