Custom Query (19 matches)

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Ticket Summary Status Keywords Owner Type Priority
#11210 tiff files with a premult alpha channel are no longer read by ffmpeg new tiff with alpha defect important
#2616 support matrox mpeg-2 I-frame with alpha codec (m704 fourcc) open matrox mpeg2video alpha defect normal
#3571 Drawtext fontcolor alpha not working with border (border and glyph would need to be combined before drawing them) open drawtext alpha defect normal
#4444 Transparency gets lost when scaling pal8 new pal8 alpha defect normal
#4814 swscale default alpha blending drops alpha new swscale, alpha enhancement normal
#6474 qt targa: unreadable video encoded with alpha channel new mov targa alpha defect normal
#7941 Transparency broken when encoding animated webp reopened webp alpha defect normal
#8588 "palettegen" adds 1 color on transparent input reopened palettegen alpha defect normal
#8744 Transparency problem when capturing a window with gdigrab new gdigrab alpha defect normal
#9531 Unexpected ghosting around a transparent video encoded with hevc_videotoolbox new hevc hevc_videotoolbox apple transparent alpha defect normal
#9872 WebP vs PNG alpha new scale alpha defect normal
#10117 DNxHR SQ codec Alpha Channel support (Decode and Encode) new alpha dnxhr enhancement normal
#11068 hevc_videotoolbox: Support yuva new hevc alpha videotoolbox enhancement normal
#11165 Default "vp9" decoder didn't properly handle alpha (transparency) new vp9 alpha defect normal
#3707 Support decoding transparency information in dnxhd streams new dnxhd alpha enhancement wish
#6718 Option to remove label on alpha channel reopened alpha enhancement wish
#8344 ffprobe does not recognize yuva420p format (alpha channel) for webm new alpha vp8 vp9 enhancement wish
#8724 chromakey does not observe existing transparency new chromakey, alpha enhancement wish
#9883 FFmpeg AVIF decoder does not seem to handle transparency when decoding YUV420P open mov av1 alpha enhancement wish
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