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De-muxing a stream is a quick and simple process of extracting and re-assembling the data that’s already there, without de-compressing and re-compressing our sequence. In our case, that’s not necessary if the encoding is already solid. Transcoding commonly refers to changing the actual encoding of the stream, say from MPEG into H264, which comes with a speed penalty and potential quality loss. To do this I am copying the h264 video and converting the speex audio to aac using libfaac. The above sounds complex, but it’s vital to understand the implications here. flv file with h264 video and speex audio into an. split them into discreet audio and video files), and then re-mux them so we can save them in a different container format. That’s really good news, because it means that we don’t really have to “transcode” the files all we need to do is de-mux them (i.e. This means that both audio and video have been transcoded in whichever encoding format I’ve chosen (perhaps H264), and then saved in an FLV container. Let me explain a bit more about this dilemma.įLV (or Flash Video) is only the container in which my video and audio is multiplexed (or muxed) together. This means I’ll have to transcode my files in order to make them useful. At that point I have no way to edit those properly.
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Beyond that, it can free download movies/music from 1000+ sites, screen record YouTube, capture screen gameplay video, and edit torrent video (cut off commercial ads from torrent video, remove.
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When you turn that setting of it only outputs a mp4 file. Its 'Auto Copy' mode lets you remux torrent video to MP4 at 1:1 quality ratio if the input and output codecs are the same (e.g., MKV H264 to MP4 H264). Simple mode only has 5 general settings to decide saving directory, quality (only three levels besides Same as stream), format (6 common used ones including MP4/MKV/FLV), encoder and muxer settings roughly. If the container format is mp4 (to record to HVEC video) and have 'automatically remux to mp4' enabled, it only puts out a mkv file. I easily forget to change this setting into something more sensible, which means I frequently end up with FLV files that contain my material. When using the custom FFmpeg output (in output, advanced, recording output type). By default, OBS Studio likes to record files in FLV – for a reason that’s absolutely beyond me.