[FFmpeg-devel] [PATCH 2/2] avformat: add mapping for AC-4 in MP4

[Paul B Mahol]

On 2/17/19, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 2019-02-17 21:25 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>> ---
>>  libavformat/isom.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/libavformat/isom.c b/libavformat/isom.c
>> index 0a4d901be5..0052db539e 100644
>> --- a/libavformat/isom.c
>> +++ b/libavformat/isom.c
>
>> +    { AV_CODEC_ID_AC4,             MKTAG('a', 'c', '-', '4') },
>> /* ETSI TS 103 190 */
>
> Are there no codec-specific atoms needed when remuxing ac-4?

They are completely optional and not needed for decoding or remuxing.