[FFmpeg-trac] #7508(avfilter:new): split filter: lack of hwaccel support
FFmpeg
trac at avcodec.org
Mon Oct 22 14:52:54 EEST 2018
#7508: split filter: lack of hwaccel support
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Reporter: msiders | Type:
Status: new | enhancement
Component: avfilter | Priority: normal
Keywords: split, | Version: git-
hwaccel | master
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Hi,
When using the -hwaccel support, if the frame is inside the GPU memory
then it's impossible to use the "split" filter to duplicate the frames
without downloading the frame to the main memory. So a complex
hwdownad+split+hwupload is required.
This is a waste of resources, as a simple frame duplication in the CPU
memory can be done without much effort.
I suggest to add this support to the "split" filter, or create a new one
called "hwsplit".
Anyone interested?
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Ticket URL: <https://trac.ffmpeg.org/ticket/7508>
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