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authorMoonchild <mcwerewolf@gmail.com>2018-10-01 15:25:04 +0200
committerGitHub <noreply@github.com>2018-10-01 15:25:04 +0200
commit45c24f05d023a2cd8289ed40a13708392ce2e6a4 (patch)
treefef75d382fc6216a093eeaf80560473dff19d883 /media/ffvpx/libavcodec/vp9_superframe_split_bsf.c
parent79b00fc33b5cb6d56d29b50efac6d62ce3a89018 (diff)
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Revert "Update ffvpx code to 4.0.2"
Diffstat (limited to 'media/ffvpx/libavcodec/vp9_superframe_split_bsf.c')
-rw-r--r--media/ffvpx/libavcodec/vp9_superframe_split_bsf.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/media/ffvpx/libavcodec/vp9_superframe_split_bsf.c b/media/ffvpx/libavcodec/vp9_superframe_split_bsf.c
deleted file mode 100644
index 9c4aa33dc..000000000
--- a/media/ffvpx/libavcodec/vp9_superframe_split_bsf.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * 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
- * This bitstream filter splits VP9 superframes into packets containing
- * just one frame.
- */
-
-#include <stddef.h>
-
-#include "avcodec.h"
-#include "bsf.h"
-#include "bytestream.h"
-#include "get_bits.h"
-
-typedef struct VP9SFSplitContext {
- AVPacket buffer_pkt;
-
- int nb_frames;
- int next_frame;
- size_t next_frame_offset;
- int sizes[8];
-} VP9SFSplitContext;
-
-static int vp9_superframe_split_filter(AVBSFContext *ctx, AVPacket *out)
-{
- VP9SFSplitContext *s = ctx->priv_data;
- AVPacket *in;
- int i, j, ret, marker;
- int is_superframe = !!s->buffer_pkt.data;
-
- if (!s->buffer_pkt.data) {
- ret = ff_bsf_get_packet_ref(ctx, &s->buffer_pkt);
- if (ret < 0)
- return ret;
- in = &s->buffer_pkt;
-
- marker = in->data[in->size - 1];
- if ((marker & 0xe0) == 0xc0) {
- int length_size = 1 + ((marker >> 3) & 0x3);
- int nb_frames = 1 + (marker & 0x7);
- int idx_size = 2 + nb_frames * length_size;
-
- if (in->size >= idx_size && in->data[in->size - idx_size] == marker) {
- GetByteContext bc;
- int64_t total_size = 0;
-
- bytestream2_init(&bc, in->data + in->size + 1 - idx_size,
- nb_frames * length_size);
-
- for (i = 0; i < nb_frames; i++) {
- int frame_size = 0;
- for (j = 0; j < length_size; j++)
- frame_size |= bytestream2_get_byte(&bc) << (j * 8);
-
- total_size += frame_size;
- if (frame_size < 0 || total_size > in->size - idx_size) {
- av_log(ctx, AV_LOG_ERROR,
- "Invalid frame size in a superframe: %d\n", frame_size);
- ret = AVERROR(EINVAL);
- goto fail;
- }
- s->sizes[i] = frame_size;
- }
- s->nb_frames = nb_frames;
- s->next_frame = 0;
- s->next_frame_offset = 0;
- is_superframe = 1;
- }
- }
- }
-
- if (is_superframe) {
- GetBitContext gb;
- int profile, invisible = 0;
-
- ret = av_packet_ref(out, &s->buffer_pkt);
- if (ret < 0)
- goto fail;
-
- out->data += s->next_frame_offset;
- out->size = s->sizes[s->next_frame];
-
- s->next_frame_offset += out->size;
- s->next_frame++;
-
- if (s->next_frame >= s->nb_frames)
- av_packet_unref(&s->buffer_pkt);
-
- ret = init_get_bits8(&gb, out->data, out->size);
- if (ret < 0)
- goto fail;
-
- get_bits(&gb, 2); // frame_marker
- profile = get_bits1(&gb);
- profile |= get_bits1(&gb) << 1;
- if (profile == 3)
- get_bits1(&gb);
- if (!get_bits1(&gb)) {
- get_bits1(&gb);
- invisible = !get_bits1(&gb);
- }
-
- if (invisible)
- out->pts = AV_NOPTS_VALUE;
-
- } else {
- av_packet_move_ref(out, &s->buffer_pkt);
- }
-
- return 0;
-fail:
- if (ret < 0)
- av_packet_unref(out);
- av_packet_unref(&s->buffer_pkt);
- return ret;
-}
-
-static void vp9_superframe_split_uninit(AVBSFContext *ctx)
-{
- VP9SFSplitContext *s = ctx->priv_data;
- av_packet_unref(&s->buffer_pkt);
-}
-
-const AVBitStreamFilter ff_vp9_superframe_split_bsf = {
- .name = "vp9_superframe_split",
- .priv_data_size = sizeof(VP9SFSplitContext),
- .close = vp9_superframe_split_uninit,
- .filter = vp9_superframe_split_filter,
- .codec_ids = (const enum AVCodecID []){ AV_CODEC_ID_VP9, AV_CODEC_ID_NONE },
-};