[FFmpeg-trac] #5272(avcodec:open): videotoolbox fails to initialize for mpeg2, mpeg4 codec
FFmpeg
trac at avcodec.org
Fri Mar 18 11:23:21 CET 2016
#5272: videotoolbox fails to initialize for mpeg2, mpeg4 codec
-------------------------------------+-------------------------------------
Reporter: lucaswang | Owner:
Type: defect | Status: open
Priority: important | Component: avcodec
Version: git-master | Resolution:
Keywords: | Blocked By:
videotoolbox regression | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
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Comment (by ponpon):
i don't understand the below. please tell me.
question1
though videotoolbox_mpeg1, videotoolbox_mpeg2, videotoolbox_mpeg4,
videotoolbox_h263 are displayed in the section of hwaccel when configuring
ffmpeg, does videotoolbox hardware decoding support for mpeg1, mpeg2,
mpeg4, h263.at all?
as long as reading
https://software.intel.com/en-us/articles/2nd-gen-hd-graphics-quick-
reference-guide/
https://software.intel.com/en-us/articles/3rd-gen-hd-graphics-quick-
reference-guide
https://software.intel.com/en-us/articles/quick-reference-guide-to-intel-
processor-graphics/
mpeg1, mpeg4, h263 aren't suppoted.
question2
is the auto switch introduced into the initial implement of videotoolbox
on ffmpeg for the further extensions?
question3
what is the advantage of commit ID:
78cc19f15ead41909ddaf85cd5bad10036a93883 discarding the possibility of the
further extensions?
as mentioned above, i don't think those who want or need to use the
decoder of ffmpeg use -hwaccel videotoolbox.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5272#comment:9>
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