Intel's oneVPL is a successor to MediaSDK, but removed some obsolete features of MediaSDK[1]. Some early versions of oneVPL still uses libmfx as library name[2], however some of obsolete features, including OPAQUE memory, multi-frame encode, user plugins and LA_EXT rate control mode etc, have been enabled in QSV, so user can not use --enable-libmfx to enable QSV if using an early version of oneVPL SDK. In order to make sure user builds FFmpeg against a right version of libmfx, this patch added a check for the version of libmfx and warning message about the used obsolete features.
[1] https://spec.oneapi.io/versions/latest/elements/oneVPL/source/appendix/VPL_intel_media_sdk.html [2] https://github.com/oneapi-src/oneVPL --- configure | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/configure b/configure index 5e630e6e5d..960b030e24 100755 --- a/configure +++ b/configure @@ -6435,8 +6435,11 @@ enabled liblensfun && require_pkg_config liblensfun lensfun lensfun.h lf_ # Media SDK or Intel Media Server Studio, these don't come with # pkg-config support. Instead, users should make sure that the build # can find the libraries and headers through other means. -enabled libmfx && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit || - { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } } +enabled libmfx && { { check_pkg_config libmfx "libmfx < 2.0" "mfx/mfxvideo.h" MFXInit || + { require "libmfx < 2.0" "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } } && + warn "build FFmpeg against libmfx 1.x, obsolete features of libmfx such as OPAQUE memory,\n"\ + "multi-frame encode, user plugins and LA_EXT rate control mode are enabled"; } + if enabled libmfx; then check_cc MFX_CODEC_VP9 "mfx/mfxvp9.h mfx/mfxstructures.h" "MFX_CODEC_VP9" fi -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
