[Ffmpeg-devel] [PATCH] dv1394.h correction

[Michal Kuna]

Dan Maas wrote:
> I *thought* the dv1394 kernel ABI was set in stone since the very
> beginning. At least that was my intention when I wrote the original
> dv1394 module. Perhaps it got changed due to 32-on-64-bit
> compatibility issues? That's the only reason I can think of.
>
> (the long-term plan was to replace the functionality of dv1394.ko with
> a generic isochronous API in raw1394.ko, with the DV-specific parts
> handled in user-space by libraw1394 and libiec61883. Most of this did
> get implemented, but I had to leave the project before the libiec61883
> part was finished. In any case the dv1394.ko ABI should definitely
> remain for backwards compatibility.)
>
> Regards,
> Dan
>
>
> * Roman Shaposhnik (rvs at sun.com) wrote:
>   
>> On Mon, 2006-11-06 at 10:01 +0100, Michal Kuna wrote:
>>     
>>> Hello,
>>>
>>> ffmpeg -grab dv1394 not worked on my system (MDV2007, Linux 2.6.17-5mdv, 
>>> gcc 4.1.1). I found discrepancy IOCTL command definition between ffmpeg 
>>> dv1394.h and kernel header file dv1394.h. With patch recording from 
>>> camcorder (SONY DCR-HC24) directly to ffmpeg like:
>>> ./ffmpeg -gd /dev/dv1394/0 -tvstd pal -grab dv1394 -deinterlace -s 
>>> 640x480 -b 1250k -bt 250k -vcodec mpeg4 -ab 128 -ac 1 -ar 22050 -acodec 
>>> mp3 -y test.avi
>>> is working.
>>>
>>> Note:
>>>  - if it's some misconception on my side - sorry
>>>       
>>   
>>   Its not really a misconception, but rather you don't see the
>> bigger picture -- older kernels. I'm currently working on trying
>> to unify various dv1394 capturing APIs (on Linux and Max OS X
>> so far) and hopefully will take care of this issue somehow.
>>
>> Thanks,
>> Roman.
>>
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>>
>>
>>     
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>   
Thank's a lot about future DV strategy description. Do you have some 
(very roughly estimated) expected date?
Michal Kuna