![]() ![]() Also, input stream 1 is put into output file 0. The “-map” options tell ffmpeg to put input stream 0 into output file 0. mp4 file losslessly) I see that converting MKV to MP4 without re-encoding is very easy (ffmpeg -i input.mkv -codec copy output.mp4), by simply changing the container. Stream #0:2(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/sĪssume you only want the german audio, you can convert the video as follows:įfmpeg -y -i INPUT.mkv -c copy -map 0:0 -map 0:1 OUTPUT.mp4 What is an MP4 (MPEG-4) file MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video. Convert a video while shuffling around the audio streamsĪssuming you have an input video file with multiple audio streams but your output file should only have one.įirst, check the streams in the input file Install ffmpegįfmpeg -y -i INPUT.mkv -c copy OUTPUT.mp4Ģa. And guess what: it is straight forward and very simple. read end end Thread.new do while stderr.read end end while data STDIN.read(64) read output of the upstream command stdin.write(data) manually. Hence I was looking for a way to losslessly convert the file format from mkv to mp4 beforehand, so that the PS3 Media Player can simply pipe the video through the network. Open3.popen3(cmd) do stdin, stdout, stderr, waitthr consume outputs in STDOUT and STDERR, otherwise the ffmpeg process may be blocked if it produces a lot of outputs Thread.new do while stdout. Unfortunately, PS3 Media Player tries to transcode the mkv video to mp4 before streaming it to the playstation – and my 2007 iMac is too slow to do this when it comes to HD (720p and above). Quite often I try to play videos encoded in mkv on my playstation 3 over the network.
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