This is an updated version of: [PATCH v4 1/1] avutils/hwcontext: When deriving a hwdevice, search for existing device in both directions There has been an objection that the earlier patchset would change API behavior, and that this change should be limited to ffmpeg cli. To achieve this, the API behavior is left unchanged now and a new function av_hwdevice_ctx_get_or_create_derived() is added and used by the hwupload and hwmap filters. softworkz (3): avutils/hwcontext: add derive-device function which searches for existing devices in both directions lavu: bump minor version and add doc/APIchanges entry for av_hwdevice_ctx_get_or_create_derived() avfilter/hwmap,hwupload: use new av_hwdevice_ctx_get_or_create_derived method doc/APIchanges | 3 ++ libavfilter/vf_hwmap.c | 4 +- libavfilter/vf_hwupload.c | 2 +- libavutil/hwcontext.c | 72 +++++++++++++++++++++++++++++++--- libavutil/hwcontext.h | 20 ++++++++++ libavutil/hwcontext_internal.h | 6 +++ libavutil/hwcontext_qsv.c | 13 ++++-- libavutil/version.h | 4 +- 8 files changed, 110 insertions(+), 14 deletions(-) base-commit: eef652ca9c893a84c6430fcdd53eed186c299d82 Published-As: https://github.com/ffstaging/FFmpeg/releases/tag/pr-ffstaging-25%2Fsoftworkz... Fetch-It-Via: git fetch https://github.com/ffstaging/FFmpeg pr-ffstaging-25/softworkz/derive_devices-v1 Pull-Request: https://github.com/ffstaging/FFmpeg/pull/25 -- ffmpeg-codebot