Commit Graph

4 Commits

Author SHA1 Message Date
Aman Karmani 504c60660d avutil/hwcontext_videotoolbox: implement hwupload to convert AVFrame to CVPixelBuffer
Teach AV_HWDEVICE_TYPE_VIDEOTOOLBOX to be able to create AVFrames of type
AV_PIX_FMT_VIDEOTOOLBOX. This can be used to hwupload a regular AVFrame
into its CVPixelBuffer equivalent.

    ffmpeg -init_hw_device videotoolbox -f lavfi -i color=black:640x480 -vf hwupload -c:v h264_videotoolbox -f null -y /dev/null

Signed-off-by: Aman Karmani <aman@tmm1.net>
2021-07-18 12:01:16 -07:00
Akemi 2a9d461abc avcodec/videotoolbox: add support for full range pixel formats
Signed-off-by: Aman Gupta <aman@tmm1.net>
2019-09-04 10:51:20 -07:00
fumoboy007 036b4b0f85 avcodec/videotoolbox: add support for 10bit pixel format
this patch was originally posted on issue #7704 and was slightly
adjusted to check for the availability of the pixel format.
2019-04-16 03:43:06 +03:00
wm4 532b23f079 videotoolbox: add hwcontext support
This adds tons of code for no other benefit than making VideoToolbox
support conform with the new hwaccel API (using hw_device_ctx and
hw_frames_ctx).

Since VideoToolbox decoding does not actually require the user to
allocate frames, the new code does mostly nothing.

One benefit is that ffmpeg_videotoolbox.c can be dropped once generic
hwaccel support for ffmpeg.c is merged from Libav.

Does not consider VDA or VideoToolbox encoding.

Fun fact: the frame transfer functions are copied from vaapi, as the
mapping makes copying generic boilerplate. Mapping itself is not
exported by the VT code, because I don't know how to test.
2017-05-15 11:30:36 +02:00