VapourSynth/libavsmash_source.c, lwlibav_source.c: mark alpha clip as…

… always in full range Fixes AkarinVS/L-SMASH-Works#11. Signed-off-by: akarin <i@akarin.info> (cherry picked from commit AkarinVS/L-SMASH-Works@843a046)
HomeOfAviSynthPlusEvolution · Apr 6, 2022 · 4a9641b · 4a9641b
1 parent d297200
commit 4a9641b
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/VapourSynth/libavsmash_source.c b/VapourSynth/libavsmash_source.c
@@ -282,7 +282,9 @@ static const VSFrameRef *VS_CC vs_filter_get_frame( int n, int activation_reason
             vsapi->setFilterError( "lsmas: failed to output an alpha video frame.", frame_ctx );
             return NULL;
         }
-        VSMap *props = vsapi->getFramePropsRW( vs_frame );
+        VSMap *props = vsapi->getFramePropsRW( vs_frame2 );
+        vsapi->propSetFrame( props, "_ColorRange", 0, paReplace ); // alpha clip always full range
+        props = vsapi->getFramePropsRW( vs_frame );
         vsapi->propSetFrame( props, "_Alpha", vs_frame2, paAppend );
         vsapi->freeFrame( vs_frame2 );
     }

diff --git a/VapourSynth/lwlibav_source.c b/VapourSynth/lwlibav_source.c
@@ -269,7 +269,9 @@ static const VSFrameRef *VS_CC vs_filter_get_frame( int n, int activation_reason
             vsapi->setFilterError( "lsmas: failed to output an alpha video frame.", frame_ctx );
             return NULL;
         }
-        VSMap *props = vsapi->getFramePropsRW( vs_frame );
+        VSMap *props = vsapi->getFramePropsRW( vs_frame2 );
+        vsapi->propSetFrame( props, "_ColorRange", 0, paReplace ); // alpha clip always full range
+        props = vsapi->getFramePropsRW( vs_frame );
         vsapi->propSetFrame( props, "_Alpha", vs_frame2, paAppend );
         vsapi->freeFrame( vs_frame2 );
     }