2015-07-15 21:51 GMT+08:00 Clément Bœsch <u...@pkh.me>: > On Sat, Jun 20, 2015 at 01:33:00PM +0200, Sebastien Zwickert wrote: >> Old videtotoolbox patch rebased and updated to target the new HWAccel API. >> As VDA is a wrapper of VideoToolbox framework, the changes base vda >> implementation >> upon the videotoolbox implementation to factorize common part of code. >> >> --- >> Changelog | 1 + >> MAINTAINERS | 1 + >> Makefile | 5 +- >> configure | 19 +- >> ffmpeg.h | 2 + >> ffmpeg_opt.c | 5 +- >> ffmpeg_vda.c | 134 -------- >> ffmpeg_videotoolbox.c | 147 +++++++++ >> libavcodec/Makefile | 12 +- >> libavcodec/allcodecs.c | 5 + >> libavcodec/h263dec.c | 3 + >> libavcodec/h264_slice.c | 4 + >> libavcodec/mpeg12dec.c | 3 + >> libavcodec/vda.c | 2 +- >> libavcodec/vda_h264.c | 154 +--------- >> libavcodec/vda_internal.h | 33 -- >> libavcodec/vda_vt_internal.h | 57 ++++ >> libavcodec/version.h | 2 +- >> libavcodec/videotoolbox.c | 705 >> +++++++++++++++++++++++++++++++++++++++++++ >> libavcodec/videotoolbox.h | 126 ++++++++ >> libavutil/pixdesc.c | 4 + >> libavutil/pixfmt.h | 2 + > > I tried on iOS (iPhone 6+ so last one unless I'm mistaken) with a 240fps > footage, and it seems the decode calls take more than 5ms, which seems not > enough. Do you have any idea what could cause this? (I'm running a timer > after/before avcodec_decode_video*())
1. kVTDecodeFrame_EnableAsynchronousDecompression can make it faster, but not suitable for sync-style API (avcodec_decode_video*()) 2. memcpy is murder (in av_image_copy()), but zero-copy needs some kind of custom AVFrame. > [...] > > -- > Clément B. > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
