* [FFmpeg-devel] buffersrc: How do you set up a hwctx before init_video is called?
@ 2025-09-01 15:23 John Cox via ffmpeg-devel
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From: John Cox via ffmpeg-devel @ 2025-09-01 15:23 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: John Cox
Hi
Between 7.1.1 and 8.0 buffersrc has changed (commit
a7fe27f9647e00041dcd079183bddabc998b6b31) to require hw_frames_ctx to be
set at init time (in buffersrc.c:init_video line 290) if a hw pix fmt is
selected rather than somewhat later. With the previous scheme
hw_frames_context could be added using av_buffersrc_paramters_set after
creation. Now I do not know how the user is meant to be able to set it
before it is required as I do not belive there is any way the user can
pass it to avfilter_graph_create_filter. How is this meant to be done in
the current world?
Many thanks
John Cox
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2025-09-01 15:23 [FFmpeg-devel] buffersrc: How do you set up a hwctx before init_video is called? John Cox via ffmpeg-devel
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