[FFmpeg-user] Vorbis/Ogg duration

John Mucha john.mucha.jm at googlemail.com
Tue Jan 10 19:24:04 CET 2012


Stop send mi messages
On Jan 10, 2012 6:20 PM, "dE ." <de.techno at gmail.com> wrote:

> On 01/10/12 23:24, John Mucha wrote:
>
>> U stop sent message
>> On Jan 10, 2012 5:51 PM, "Austen McRae"<austen.mcrae at gmail.com>  wrote:
>>
>>  Hey all,
>>>
>>> I'm attempting to figure out if there is a header component of Vorbis (or
>>> its container Ogg) that specifies the the audio duration.  My current
>>> make
>>> of ffmpeg doesn't seem to place any type of duration information; when I
>>> play it back using VLC it plays but the duration is 00:00, but I've been
>>> able to find additional ogg vorbis files that do have a duration
>>> component
>>> in VLC (which was exported from Quicktime).
>>>
>>> Looking at the Ogg source files shows that the OGGStreamContext doesn't
>>> really have a duration option, but it looks like we could add it using an
>>> OggComment?  I did attempt to add it using the -metadata tag, but VLC
>>> didn't pick up "duration" or "length" produced unplayable files...
>>>
>>> Any additional knowledge as to how the duration is encoded would be
>>> great!
>>>
>>> Sincerely,
>>>
>>> Austen
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>>>
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>
> Fuckin shutup dude! You know what's a mailing list?
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