[FFmpeg-trac] #2591(avcodec:open): Feature Request: Add ability to use Quick Sync to transcode video files
FFmpeg
trac at avcodec.org
Tue May 21 23:55:51 CEST 2013
#2591: Feature Request: Add ability to use Quick Sync to transcode video files
-------------------------------------+-----------------------------------
Reporter: zjacobs | Owner:
Type: enhancement | Status: open
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: h264 vaapi | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-----------------------------------
Comment (by Rodeo):
In my experience, Quick Sync is most useful when it handles both video
decoding and encoding (much lower CPU usage, fan noise and power
consumption) - and that's where Quick Sync will outperform x264 ultrafast
by a large margin on consumer-grade hardware. Still, Quick Sync encode-
only can also outperform ultrafast on just about any ultrabook, AFAIK.
FWIW, there is ongoing to work to integrate QSV as a hwaccel in Libav:
https://github.com/maximd33/libav/tree/qsv
https://github.com/DonDiego/libav/tree/qsv
Only H.264 decode is implemented so far, IIRC - haven't been following
this very closely though.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2591#comment:7>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list