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Merge commit 'e2ceb17642f374a7df8f1f5d3d2b2446525bc7fb'

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* commit 'e2ceb17642f374a7df8f1f5d3d2b2446525bc7fb':
  mpeg4videodec: move mpeg4-specific post-frame-decode code from h264dec to mpeg4videodec

Conflicts:
	libavcodec/h263dec.c
	libavcodec/mpeg4video.h
	libavcodec/mpeg4videodec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-11-30 02:42:56 +01:00
commit ec5499d8ba
3 changed files with 45 additions and 31 deletions
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33
libavcodec/h263dec.c
View File

@ -623,37 +623,8 @@ frame_end:
ff_MPV_frame_end(s); ff_MPV_frame_end(s);
/* divx 5.01+ bitstream reorder stuff */ if (CONFIG_MPEG4_DECODER && avctx->codec_id == AV_CODEC_ID_MPEG4)
/* Since this clobbers the input buffer and hwaccel codecs still need the ff_mpeg4_frame_end(avctx, buf, buf_size);
* data during hwaccel->end_frame we should not do this any earlier */
if (s->codec_id == AV_CODEC_ID_MPEG4 && s->divx_packed) {
int current_pos = s->gb.buffer == s->bitstream_buffer ? 0 : (get_bits_count(&s->gb) >> 3);
int startcode_found = 0;
if (buf_size - current_pos > 7) {
int i;
for (i = current_pos; i < buf_size - 4; i++)
if (buf[i] == 0 &&
buf[i + 1] == 0 &&
buf[i + 2] == 1 &&
buf[i + 3] == 0xB6) {
startcode_found = !(buf[i + 4] & 0x40);
break;
}
}
if (startcode_found) {
av_fast_malloc(&s->bitstream_buffer,
&s->allocated_bitstream_buffer_size,
buf_size - current_pos +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!s->bitstream_buffer)
return AVERROR(ENOMEM);
memcpy(s->bitstream_buffer, buf + current_pos,
buf_size - current_pos);
s->bitstream_buffer_size = buf_size - current_pos;
}
}
if (!s->divx_packed && avctx->hwaccel) if (!s->divx_packed && avctx->hwaccel)
ff_thread_finish_setup(avctx); ff_thread_finish_setup(avctx);

1
libavcodec/mpeg4video.h
View File

@ -120,6 +120,7 @@ int ff_mpeg4_decode_video_packet_header(Mpeg4DecContext *ctx);
void ff_mpeg4_init_direct_mv(MpegEncContext *s); void ff_mpeg4_init_direct_mv(MpegEncContext *s);
void ff_mpeg4videodec_static_init(void); void ff_mpeg4videodec_static_init(void);
int ff_mpeg4_workaround_bugs(AVCodecContext *avctx); int ff_mpeg4_workaround_bugs(AVCodecContext *avctx);
int ff_mpeg4_frame_end(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
/** /**
* *

42
libavcodec/mpeg4videodec.c
View File

@ -2624,6 +2624,48 @@ av_cold void ff_mpeg4videodec_static_init(void) {
} }
} }
int ff_mpeg4_frame_end(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
{
Mpeg4DecContext *ctx = avctx->priv_data;
MpegEncContext *s = &ctx->m;
/* divx 5.01+ bitstream reorder stuff */
/* Since this clobbers the input buffer and hwaccel codecs still need the
* data during hwaccel->end_frame we should not do this any earlier */
if (s->divx_packed) {
int current_pos = s->gb.buffer == s->bitstream_buffer ? 0 : (get_bits_count(&s->gb) >> 3);
int startcode_found = 0;
if (buf_size - current_pos > 7) {
int i;
for (i = current_pos; i < buf_size - 4; i++)
if (buf[i] == 0 &&
buf[i + 1] == 0 &&
buf[i + 2] == 1 &&
buf[i + 3] == 0xB6) {
startcode_found = !(buf[i + 4] & 0x40);
break;
}
}
if (startcode_found) {
av_fast_malloc(&s->bitstream_buffer,
&s->allocated_bitstream_buffer_size,
buf_size - current_pos +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!s->bitstream_buffer)
return AVERROR(ENOMEM);
memcpy(s->bitstream_buffer, buf + current_pos,
buf_size - current_pos);
s->bitstream_buffer_size = buf_size - current_pos;
}
}
return 0;
}
static int mpeg4_update_thread_context(AVCodecContext *dst, static int mpeg4_update_thread_context(AVCodecContext *dst,
const AVCodecContext *src) const AVCodecContext *src)
{ {