[FFmpeg-user] Capture multiple streams into same container?

[Tom Sparks]

On 25/06/2020, Simon Roberts <simon at dancingcloudservices.com> wrote:
> On Wed, Jun 24, 2020 at 3:41 AM Tom Sparks <tomasparks.ts at gmail.com> wrote:
>
>> mkv is a better output format to use
>>
>
> Thanks for this Tom, can you expand on what the benefits are? I think I
> ended up with mov as it seemed to be the "natural" choice for apple prores
> content, but there was no thought went into it, just "what somebody said" :)
>
mkv support every know format*

the could be a case when you want to store the:
* video in FFV1 (lossless) or AV1 (lossy) or Mjpeg (i-frame)
* audio in opus (lossy) or flac (lossless)

this link talk more about using proress with ffmpeg:
https://trac.ffmpeg.org/wiki/Encode/VFX

you can disregard everything else I said if you want to
>
* except really old formats like realaudio/video