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Code Issues Releases Activity

avformat/avienc: factor frame skip code out

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-11-19 19:30:49 +01:00
parent 33bc81e437
commit be44856483
1 changed files with 32 additions and 16 deletions
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48
libavformat/avienc.c
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@ -70,6 +70,8 @@ typedef struct {
AVIIndex indexes;
} AVIStream;
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt);
static inline AVIIentry *avi_get_ientry(const AVIIndex *idx, int ent_id)
{
int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
@ -565,6 +567,32 @@ static int avi_write_idx1(AVFormatContext *s)
return 0;
}
static int write_skip_frames(AVFormatContext *s, int stream_index, int64_t dts)
{
AVIStream *avist = s->streams[stream_index]->priv_data;
AVCodecContext *enc = s->streams[stream_index]->codec;
av_dlog(s, "dts:%s packet_count:%d stream_index:%d\n", av_ts2str(dts), avist->packet_count, stream_index);
while (enc->block_align == 0 && dts != AV_NOPTS_VALUE &&
dts > avist->packet_count && enc->codec_id != AV_CODEC_ID_XSUB && avist->packet_count) {
AVPacket empty_packet;
if (dts - avist->packet_count > 60000) {
av_log(s, AV_LOG_ERROR, "Too large number of skipped frames %"PRId64" > 60000\n", dts - avist->packet_count);
return AVERROR(EINVAL);
}
av_init_packet(&empty_packet);
empty_packet.size = 0;
empty_packet.data = NULL;
empty_packet.stream_index = stream_index;
avi_write_packet(s, &empty_packet);
av_dlog(s, "dup dts:%s packet_count:%d\n", av_ts2str(dts), avist->packet_count);
}
return 0;
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
unsigned char tag[5];
@ -575,29 +603,17 @@ static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
AVIOContext *pb = s->pb;
AVIStream *avist = s->streams[stream_index]->priv_data;
AVCodecContext *enc = s->streams[stream_index]->codec;
int ret;
if (enc->codec_id == AV_CODEC_ID_H264 && enc->codec_tag == MKTAG('H','2','6','4') && pkt->size) {
int ret = ff_check_h264_startcode(s, s->streams[stream_index], pkt);
ret = ff_check_h264_startcode(s, s->streams[stream_index], pkt);
if (ret < 0)
return ret;
}
av_dlog(s, "dts:%s packet_count:%d stream_index:%d\n", av_ts2str(pkt->dts), avist->packet_count, stream_index);
while (enc->block_align == 0 && pkt->dts != AV_NOPTS_VALUE &&
pkt->dts > avist->packet_count && enc->codec_id != AV_CODEC_ID_XSUB && avist->packet_count) {
AVPacket empty_packet;
if (pkt->dts - avist->packet_count > 60000) {
av_log(s, AV_LOG_ERROR, "Too large number of skipped frames %"PRId64" > 60000\n", pkt->dts - avist->packet_count);
return AVERROR(EINVAL);
}
if ((ret = write_skip_frames(s, stream_index, pkt->dts)) < 0)
return ret;
av_init_packet(&empty_packet);
empty_packet.size = 0;
empty_packet.data = NULL;
empty_packet.stream_index = stream_index;
avi_write_packet(s, &empty_packet);
av_dlog(s, "dup dts:%s packet_count:%d\n", av_ts2str(pkt->dts), avist->packet_count);
}
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits