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Code Issues Releases Activity

avformat/mux: Remove redundant resetting

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Now that ff_interleave_add_packet() always returns blank packets, the
input packet to ff_interleave_packet_per_dts() will always be blank on
return as well (if supplied) and the same goes for interleave_packet()
in mux.c. Document these facts and remove the redundant resetting that
happened in av_interleaved_write_frame().

The last reference to the (long removed) destruct field that AVPackets
once had has been removed as well when updating the documentation of
ff_interleave_packet_per_dts().

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-04-11 13:48:50 +02:00
parent a43120b609
commit 00aa6dea3f
2 changed files with 7 additions and 13 deletions
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11
libavformat/internal.h
View File

@ -495,15 +495,12 @@ int ff_framehash_write_header(AVFormatContext *s);
int ff_read_packet(AVFormatContext *s, AVPacket *pkt);
/**
* Interleave a packet per dts in an output media file.
* Interleave an AVPacket per dts so it can be muxed.
*
* Packets with pkt->destruct == av_destruct_packet will be freed inside this
* function, so they cannot be used after it. Note that calling av_packet_unref()
* on them is still safe.
*
* @param s media file handle
* @param s an AVFormatContext for output. pkt resp. out will be added to
* resp. taken from its packet buffer.
* @param out the interleaved packet will be output here
* @param pkt the input packet
* @param pkt the input packet; will be blank on return if not NULL
* @param flush 1 if no further packets are available as input and all
* remaining packets should be output
* @return 1 if a packet was output, 0 if no packet could be output,

9
libavformat/mux.c
View File

@ -1158,7 +1158,7 @@ int ff_interleaved_peek(AVFormatContext *s, int stream,
/**
* Interleave an AVPacket correctly so it can be muxed.
* @param out the interleaved packet will be output here
* @param in the input packet
* @param in the input packet; will always be blank on return if not NULL
* @param flush 1 if no further packets are available as input and all
* remaining packets should be output
* @return 1 if a packet was output, 0 if no packet could be output,
@ -1213,14 +1213,11 @@ int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)
for (;; ) {
AVPacket opkt;
int ret = interleave_packet(s, &opkt, pkt, flush);
if (pkt) {
memset(pkt, 0, sizeof(*pkt));
av_init_packet(pkt);
pkt = NULL;
}
if (ret <= 0)
return ret;
pkt = NULL;
ret = write_packet(s, &opkt);
av_packet_unref(&opkt);