Re: [FFmpeg-user] does mp4 support timed metadata

[qw]

Hi,


I read one article from microsoft, i.e. 
https://docs.microsoft.com/en-us/azure/media-services/media-services-specifications-live-timed-metadata


azure will put timed metadata into fmp4, and will support various formats of 
timed metadata. As mpegts demuxer/muxer in ffmpeg support id3 tag, does 
ffmpeg's mp4 support the feature?


Thanks!


Regards


Andrew



At 2019-11-01 02:15:09, "Ted Park"  wrote:
>> does mp4 support timed metadata, such as id3 timed metadata?
>
>I think you asked about timed id3 before as well, for Transport Streams and 
>rtmp previously, But only ever provide a vague picture of what you’re trying 
>to do.
>
>That’s your prerogative of course, but I’m limited to giving general advice to 
>(extremely) general situations you present… And I fear you’re getting further 
>and further away from what would be reasonable practice in however you 
>implement timed metadata in whatever project you’re working on.
>
>First of all, there are several flavors of the “mp4” container. If you use the 
>most general specification for it (which I think corresponds to -f mov for 
>some reason) then you can pretty much put any stream in an mp4, though you 
>might have to specify the codec tag, and if there’s no encoder, just make it 
>copy unknown codec streams.
>
>But why?? I’m curious what you’d use a containerized file like mp4 with a 
>private stream with a couple packets at best, which might not even be decoded 
>right for.
>___
>ffmpeg-user mailing list
>ffmpeg-user@ffmpeg.org
>https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
>To unsubscribe, visit link above, or email
>ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] does mp4 support timed metadata

[Ted Park]

> does mp4 support timed metadata, such as id3 timed metadata?

I think you asked about timed id3 before as well, for Transport Streams and 
rtmp previously, But only ever provide a vague picture of what you’re trying to 
do.

That’s your prerogative of course, but I’m limited to giving general advice to 
(extremely) general situations you present… And I fear you’re getting further 
and further away from what would be reasonable practice in however you 
implement timed metadata in whatever project you’re working on.

First of all, there are several flavors of the “mp4” container. If you use the 
most general specification for it (which I think corresponds to -f mov for some 
reason) then you can pretty much put any stream in an mp4, though you might 
have to specify the codec tag, and if there’s no encoder, just make it copy 
unknown codec streams.

But why?? I’m curious what you’d use a containerized file like mp4 with a 
private stream with a couple packets at best, which might not even be decoded 
right for.
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

[FFmpeg-user] does mp4 support timed metadata

[qw]

Hi,


I have one question:


does mp4 support timed metadata, such as id3 timed metadata?


Thanks!


Regards


Andrew
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".