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avformat/matroskaenc: Redo reformatting AV1

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This avoids allocations+copies in all cases, not only those
in which the desired OBUs are contiguous in the input buffer.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-01-16 00:12:29 +01:00
parent 5f973193e5
commit 8318627558
1 changed files with 14 additions and 3 deletions
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17
libavformat/matroskaenc.c
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@ -2389,6 +2389,16 @@ static int mkv_reformat_wavpack(MatroskaMuxContext *mkv, AVIOContext *pb,
}
#endif
static int mkv_reformat_av1(MatroskaMuxContext *mkv, AVIOContext *pb,
const AVPacket *pkt, int *size)
{
int ret = ff_av1_filter_obus(pb, pkt->data, pkt->size);
if (ret < 0)
return ret;
*size = ret;
return 0;
}
static int mkv_write_block(AVFormatContext *s, AVIOContext *pb,
uint32_t blockid, const AVPacket *pkt, int keyframe)
{
@ -2426,9 +2436,7 @@ static int mkv_write_block(AVFormatContext *s, AVIOContext *pb,
err = ff_hevc_annexb2mp4_buf(pkt->data, &data, &size, 0, NULL);
} else
#endif
if (par->codec_id == AV_CODEC_ID_AV1) {
err = ff_av1_filter_obus_buf(pkt->data, &data, &size, &offset);
} else if (track->reformat) {
if (track->reformat) {
err = track->reformat(mkv, NULL, pkt, &size);
} else
data = pkt->data;
@ -3106,6 +3114,9 @@ static int mkv_init(struct AVFormatContext *s)
track->reformat = mkv_reformat_wavpack;
break;
#endif
case AV_CODEC_ID_AV1:
track->reformat = mkv_reformat_av1;
break;
}
if (s->flags & AVFMT_FLAG_BITEXACT) {