[FFmpeg-devel] [PATCH] read header in FLAC demuxer

Justin Ruggles justin.ruggles
Sun Mar 1 06:08:01 CET 2009

Michael Niedermayer wrote:
> On Sat, Feb 28, 2009 at 09:08:18PM -0500, Justin Ruggles wrote:
>> Justin Ruggles wrote:
>>> Michael Niedermayer wrote:
>>>> On Mon, Feb 02, 2009 at 09:00:05PM -0500, Justin Ruggles wrote:
>>>>> I'm open to suggestions or other samples to test.
>>>> what you tested sounds good
>>>> in addition you could test if -acodec copy to containers supporting flac
>>>> result in identical files
>>> Good idea. I'll test some, then submit the new patch.
>> Now that the FLAC muxer has changed, this patch is somewhat simpler.  It
>> still disallows the header to be passed to the decoder with frame data,
>> but that is not needed by any of our demuxers after this patch.  One
>> thing I'm unsure of is whether or not to bump the lavc minor version
>> since the FLAC decoder behavior will change.
>> As for "-acodec copy", the only thing that will change is that remuxing
>> from raw FLAC to wav or avi will put the STREAMINFO in WAVEFORMATEX like
>> it should instead of in the data.  Remuxing raw FLAC to other containers
>> is still broken because we don't have a FLAC parser.
> will flac in avi files from "old" ffmpeg still work with new?

No, not the ones made by remuxing raw FLAC... but I would consider those
broken files.  flac-in-avi remuxed from ogg or mkv produce correct files.


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