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avformat/movenc: fix sample size being zero in pcmC 

bits_per_raw_sample might not set when remux raw PCM.

Fix #10433.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili 2023-07-26 11:45:38 +08:00
parent 9549712056
commit 0c02ad857c
1 changed files with 6 additions and 1 deletions
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7
libavformat/movenc.c
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@ -1225,6 +1225,7 @@ static int mov_write_pcmc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *tra
{
int64_t pos = avio_tell(pb);
int format_flags;
int sample_size;
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "pcmC");
@ -1237,7 +1238,11 @@ static int mov_write_pcmc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *tra
track->par->codec_id == AV_CODEC_ID_PCM_S24LE ||
track->par->codec_id == AV_CODEC_ID_PCM_S32LE);
avio_w8(pb, format_flags);
avio_w8(pb, track->par->bits_per_raw_sample);
sample_size = track->par->bits_per_raw_sample;
if (!sample_size)
sample_size = av_get_exact_bits_per_sample(track->par->codec_id);
av_assert0(sample_size);
avio_w8(pb, sample_size);
return update_size(pb, pos);
}