Needless to say, this procedure is far from ideal. if GIF: Encode and save as final GIF file.if MP4: re-encode as H.264 and AAC and mux both into the final MP4 output file. ![]() ![]() encode as H.264 and AAC and mux both into an MP4 file.encode and save all frames as PNG files.if MP4: mix sound clips and save as WAV file.if MP4: (re-)encode and save all sound clips as WAV files.The current exporter employs a mixed bag of Qt APIs, custom multimedia code and calls to the FFmpeg CLI to export a project in up to 5 (five!) passes, with the exact number depending mainly on the file format: I’m going to go into details, so this will be long the tl dr is that the current movie exporter based on the FFmpeg CLI is inelegant and inefficient and it would be better to use something based on an API such as the FFmpeg API. This came up in #671 a few weeks ago and I figured it deserved its own issue by now.
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