path: root/old-configure
diff options
authorwm4 <wm4@nowhere>2014-09-04 23:07:56 +0200
committerwm4 <wm4@nowhere>2014-09-05 01:52:29 +0200
commitb5181422369ef3e5773c7e15ab3004006322d065 (patch)
tree4f0a9baeab991d823d8dad14e6c52ff4e16de133 /old-configure
parente267ff93f32783e324c93395ab135e5b26f0efe1 (diff)
build: handle insane libavcodec API bullshit
The oldest supported FFmpeg release doesn't provide av_vdpau_alloc_context(). With these versions, the application has no other choice than to hard code the size of AVVDPAUContext. (On the other hand, there's av_alloc_vdpaucontext(), which does the same thing, but is FFmpeg specific - not sure if it was available early enough, so I'm not touching it.) Newer FFmpeg and Libav releases require you to call this function, for ABI compatibility reasons. It's the typcal lakc of foresight that make FFmpeg APIs terrible. mpv successfully pretended that this crap didn't exist (ABI compat. is near impossible to reach anyway) - but it appears newer developments in Libav change the function from initializing the struct with all-zeros to something else, and mpv vdpau decoding would stop working as soon as this new work is relewased. So, add a configure test (sigh). CC: @mpv-player/stable
Diffstat (limited to 'old-configure')
1 files changed, 6 insertions, 0 deletions
diff --git a/old-configure b/old-configure
index 5c549c395e..3661afa8f8 100755
--- a/old-configure
+++ b/old-configure
@@ -832,6 +832,12 @@ api_statement_check \
libavutil/frame.h \
'av_frame_get_qp_table(NULL, NULL, NULL)'
+api_statement_check \
+ "libavcodec av_vdpau_alloc_context()" \
+ libavcodec/vdpau.h \
+ 'AVVDPAUContext *x = av_vdpau_alloc_context()'
check_pkg_config "libavfilter" $_libavfilter LIBAVFILTER 'libavfilter >= 3.90.100'
check_pkg_config "libavdevice" $_libavdevice LIBAVDEVICE 'libavdevice >= 54.0.0'