[FFmpeg-devel] [PATCH]: Video Decoder Acceleration (VDA) HWAccel module for Mac OS X

Sebastien Zwickert dilaroga at gmail.com
Tue Nov 1 16:34:59 CET 2011

On Nov 1, 2011, at 4:09 PM, Carl Eugen Hoyos wrote:

> Sebastien Zwickert <dilaroga <at> gmail.com> writes:
>> The patch in attachment implements a HWAccel module that uses the Video 
>> Decoder Acceleration framework on
>> Mac OS X. VDA decodes H264 avcc format video in GPU.
>> The technical notes from Apple about this module can be found at this link :
>> http://developer.apple.com/library/mac/#technotes/tn2267/
> Did you consider using VideoToolBox instead?

No, because this framework is not public AFAIK.

> [...]
>> +    PIX_FMT_VDA_VLD,    ///< HW decoding through VDA.
>> +
>>     PIX_FMT_YUV420P16LE,  ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per
> 2x2 Y samples), little-endian
> This really has to go to the end of the list.

Change done in the upated patch in attachment.

Updated patch also removes tabs in libavutil/pixdesc.c and an unintentional check_header in configure (thanks to was from videolan IRC to point me out this mistakes).

Best regards,


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