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avformat/movenc: Avoid allocation for timecode track 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-09-28 19:27:20 +02:00
parent e3b5316bed
commit 290de64759
1 changed files with 4 additions and 8 deletions
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12
libavformat/movenc.c
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@ -6165,11 +6165,12 @@ static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_
static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc)
{
int ret;
MOVMuxContext *mov = s->priv_data;
MOVTrack *track = &mov->tracks[index];
AVStream *src_st = s->streams[src_index];
AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
uint8_t data[4];
AVPacket pkt = { .data = data, .stream_index = index,
.flags = AV_PKT_FLAG_KEY, .size = 4 };
AVRational rate = find_fps(s, src_st);
/* tmcd track based on video stream */
@ -6192,13 +6193,8 @@ static int mov_create_timecode_track(AVFormatContext *s, int index, int src_inde
track->st->avg_frame_rate = av_inv_q(rate);
/* the tmcd track just contains one packet with the frame number */
pkt.data = av_malloc(pkt.size);
if (!pkt.data)
return AVERROR(ENOMEM);
AV_WB32(pkt.data, tc.start);
ret = ff_mov_write_packet(s, &pkt);
av_free(pkt.data);
return ret;
return ff_mov_write_packet(s, &pkt);
}
/*