[Ffmpeg-devel] Re: [PATCH] x264 avc encoding, movenc avcC, ctts
Sun Feb 19 19:31:24 CET 2006
Erik Slagter wrote:
> On Sun, 2006-02-19 at 18:23 +0100, Baptiste COUDURIER wrote:
>> Here is 4 patches:
> Nice to see someone's working on it. You beat me on it, the book on mp4
> is still not delivered :-(. Maybe it can be helpful later, to clear up
> the details, it looks like the ffmpeg mp4 muxer still lacks quite a few
>> which write ctts atom needed for AVC in mp4 files.
> Is this the one for making b frames "work"?
Yes it is.
> Would this by any chance also fix the problem where MP4Box segfaults on
> extracting raw h264 from mp4's muxed by ffmpeg? Can you check this
MP4Box -hint test.mp4
acid at cassiopee #5973
Hinting file with Path-MTU 1500 Bytes
Hinting track ID 1 - Type "avc1:avc1" (H264) - BW 728 kbps
Hinting track ID 2 - Type "mp4a:mp4a" (mpeg4-generic) - BW 63 kbps
Saving test.mp4: 0.500 secs Interleaving
Is that good ?
> Do you have any means to check the validity of the stream produced by
> ffmpeg, I guess something like Quicktime player? I don't have windows
> nor macos, so for me it's going to get difficult to check, or
Exactly, mostly Apple stuff, FCP, Quicktime player. I based my efforts
on samples produced by FCP.
Baptiste COUDURIER GnuPG Key Id: 0x5C1ABAAA
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