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avformat/iamf_writer: disallow Opus extradata with mapping family other than 0

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Clause 3.11.1 of IAMF[1] states the Opus ID Header should conform to  ChannelMappingFamily == 0.

[1]https://aomediacodec.github.io/iamf/#opus-specific

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 2aab4e4cc0b4a666c7e5a752b25a337710b20bdb)
This commit is contained in:
James Almer 2024-07-19 20:50:52 -03:00
parent fdd3e3504e
commit 1ef18d0223
1 changed files with 1 additions and 1 deletions
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2
libavformat/iamf_writer.c
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@ -39,7 +39,7 @@ static int update_extradata(IAMFCodecConfig *codec_config)
switch(codec_config->codec_id) { switch(codec_config->codec_id) {
case AV_CODEC_ID_OPUS: case AV_CODEC_ID_OPUS:
if (codec_config->extradata_size < 19) if (codec_config->extradata_size != 19)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
codec_config->extradata_size -= 8; codec_config->extradata_size -= 8;
AV_WB8(codec_config->extradata + 0, AV_RL8(codec_config->extradata + 8)); // version AV_WB8(codec_config->extradata + 0, AV_RL8(codec_config->extradata + 8)); // version