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

Carl Eugen Hoyos ceffmpeg at gmail.com
Sun Feb 17 23:12:52 EET 2019


2019-02-17 21:50 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
> 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.

Thank you for the explanation!
Do we already have samples?

Carl Eugen


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