stream.ffmpegmux: fix copy-to-pipe race condition #5162
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Make sure that each substream's buffer always gets fully emptied when closing the stream, so that no data is missing when muxing the output stream. TODO: properly refactor FFMPEGMuxer class with full test coverage
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Make sure that each substream's buffer always gets fully emptied when closing the stream, so that no data is missing when muxing the output stream.
TODO: properly refactor FFMPEGMuxer class with full test coverage
Fixes #5159
The second commit fixes another race condition in the
NamedPipePosiximplementation when attempting to close the file descriptor of a broken named pipe where the fifo wouldn't get unlinked in the filesystem.As mentioned in #5159 (comment), I will have a look at properly refactoring/rewriting the
FFMPEGMuxerclass some time later.Pipe-copying now ends simultaneously and no data should be missing in the muxed output stream: