Opened 6 years ago
Closed 5 years ago
#7953 closed enhancement (fixed)
Support smpte2084 transfer function for hevc_videotoolbox and h264_videotoolbox
Reported by: | Nomis101 | Owned by: | |
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Priority: | wish | Component: | avcodec |
Version: | git-master | Keywords: | videotoolbox |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
Trying to encode 4k HDR videos in HandBrake with videotoolbox x264 or x265, I'm seeing the following message:
[hevc_videotoolbox @ 0x7f9707b07000] Transfer function smpte2084 is not supported.
OR
[h264_videotoolbox @ 0x7f9709149600] Transfer function smpte2084 is not supported.
This is triggered from FFmpeg here
https://github.com/FFmpeg/FFmpeg/blob/98478c05edb674ec429c298fbe593bda493ba60f/libavcodec/videotoolboxenc.c#L931
It would be nice to add the transfer function smpte2084 to videotoolboxenc.c, which has the constant name kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
https://developer.apple.com/documentation/corevideo/cvimagebuffer/image_buffer_transfer_function_constants?language=objc
Change History (2)
comment:1 by , 6 years ago
Keywords: | videotoolbox added |
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Priority: | normal → wish |
comment:2 by , 5 years ago
Resolution: | → fixed |
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Status: | new → closed |
This was fixed here: https://github.com/FFmpeg/FFmpeg/commit/391b67fcb58f95b5cc65b75070fd9a3dce4f8ac6