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avformat/mux: Avoid overhead of packet list in case of single streams

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Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-10-09 16:27:03 +02:00
parent c03e53aea7
commit 52d13d54e1
2 changed files with 16 additions and 1 deletions
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7
libavformat/internal.h
View File

@ -759,6 +759,13 @@ int ff_add_attached_pic(AVFormatContext *s, AVStream *st, AVIOContext *pb,
int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *pkt,
int flush, int has_packet);
/**
* Interleave packets directly in the order in which they arrive
* without any sort of buffering.
*/
int ff_interleave_packet_passthrough(AVFormatContext *s, AVPacket *pkt,
int flush, int has_packet);
void ff_free_stream(AVFormatContext *s, AVStream *st);
unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id);

10
libavformat/mux.c
View File

@ -336,7 +336,9 @@ static int init_muxer(AVFormatContext *s, AVDictionary **options)
}
si->interleave_packet = of->interleave_packet;
if (!si->interleave_packet)
si->interleave_packet = ff_interleave_packet_per_dts;
si->interleave_packet = si->nb_interleaved_streams > 1 ?
ff_interleave_packet_per_dts :
ff_interleave_packet_passthrough;
if (!s->priv_data && of->priv_data_size > 0) {
s->priv_data = av_mallocz(of->priv_data_size);
@ -1028,6 +1030,12 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *pkt,
}
}
int ff_interleave_packet_passthrough(AVFormatContext *s, AVPacket *pkt,
int flush, int has_packet)
{
return has_packet;
}
int ff_get_muxer_ts_offset(AVFormatContext *s, int stream_index, int64_t *offset)
{
AVStream *st;