[FFmpeg-devel] [PATCH] IVF demuxer

John Koleszar jkoleszar
Fri May 21 13:32:22 CEST 2010


On Fri, May 21, 2010 at 7:01 AM, Kostya <kostya.shishkov at gmail.com> wrote:
> On Fri, May 21, 2010 at 12:47:47PM +0200, Maxim wrote:
>> Hi David,
>> > Hi,
>> >
>> > Some VP8 command-line tools use IVF for some reason...
>> >
>>
>> I'm glad you're working on this format! I have some IVF samples coded
>> with indeo5 whose seem to have a completely different format! The first
>> 16 bytes look like an unknown GUID, the following ones contain: standard
>> m$ video and audio descriptors, an frame index and frame data.
>> It would be very appreciated to have a support for IVF/indeo too...
>> Could you likely look into it?
>
> I suspect that _your_ samples are real Indeo IVF while VP8 is stored into
> something homemade (since it's too simple) and "IVF" means something
> else like "idiotic video frames"
>

That's about right. In all seriousness, I'd be interested moving to
use a more standard container of similar complexity for providing
basic packet framing and timestamping. I thought about (ab)using RTP,
but never had the time to look into it very far and given the limited
use/scope of ivf, there weren't any tangible advantages at the time.
If you have any suggestions, I'd be interested.



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