As you can see libx265 does not yet support alpha. CODEC HEVC H. If it supported alpha it would have pixel format with an a in the name, such as yuva420p or rgba. Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p gbrp yuv420p10le yuv422p10le yuv444p10le gbrp10le yuv420p12le yuv422p12le yuv444p12le gbrp12le gray gray10le gray12le Checking if an encoder supports alpha / transparency $ ffmpeg -h encoder=libx265 This H.265 video converter has Mac version and Windows version, so it can convert HEVC videos on Mac and Windows computer, you can choose the right version according to your computer. It is not, for instance, a codec you select for the Quicktime format. In Media Encoder it's listed as 'HVEC (H.265)' in the main format drop down menu near H.264 and H.264 (Blu-Ray). This answer may become outdated due to continuous developments, so make sure to research the current situation. Download Acrok Video Converter Ultimate from the link, install this HEVC to After Effects CC converter on your computer. CC2015.3 is the current version and h.265 has been available since at least 2015.2. See ffmpeg -h encoder=hevc_videotoolbox for more info. This is the windows 7 shortcut for run as administrator which didnt have any affect. The "HEVC Video with Alpha" profile will only be used when the -alpha_quality value is not 0 (default is 0, range 0-1.). This has been updated after FFmpeg 4.3 was released, so you'll have to use a build from the current git branch, or wait for 4.4.Įxample command adapted from the relevant commit: ffmpeg -i input%03d.png -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 0.75 -vtag hvc1 output.mov 265 is a very processing-intensive codec for both encoding and decoding but leads to higher video quality at lower data rates. This is a hardware accelerated encoder for Apple hardware. It supports 7 HEVC/H.265 external encoders (most are hardware based) including libx265 which does not currently support alpha.Īs of now only the VideoToolbox HEVC Encoder ( -c:v hevc_videotoolbox) supports alpha. VideoToolbox supports alpha / transparencyįFmpeg does not have its own HEVC/H.265 encoder.
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