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I want to convert an elementary stream(.264) to container format(.mp4). Can someone please help me on this? How can I use ffmpeg to do this task? What are all the other methods that could accomplish the same task?

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  • You can also do it via Handbrake gui in software center or via ppa. – Arup Roy Chowdhury Oct 26 '15 at 6:00
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This is easy with ffmpeg:

ffmpeg -framerate 24 -i input.264 -c copy output.mp4
  • This simply stream copies (re-muxes) the video so there is no unnecessary re-encoding occurring; therefore the quality is preserved and the whole process is quick.

  • Frame rate is by default assumed to be 25. You can change this with the -framerate input option. Typical values are 30000/1001, 25 (default), 24000/1001, 24, or frame rate aliases such as ntsc, ntsc-film, or pal.

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    One should note that raw H.264 streams don't carry a rate information, so FFmpeg will display a warning and default to 25 frames/second. If you want a different frame rate you can use the -r switch, e. g. -r 30 for 30 frames/second. – David Foerster Apr 21 '17 at 12:58
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    @DavidFoerster Yes, good point, but the H.264 demuxer uses -framerate instead of -r. – llogan Apr 21 '17 at 18:04
  • You're correct. I should have read the entire paragraph in the FFmpeg documentation: “If in doubt use -framerate instead of the input option -r.” For some reason -framerate isn't documented in this manual here though. – David Foerster Apr 21 '17 at 22:45
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    That of ffmpeg(1) (Ctrl+F for -framrate). There's documentation for it in the avfoundation input device section but it doesn't look like it applies to other cases. – David Foerster Apr 22 '17 at 0:27
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    @MotsManish I recommend asking a new question. In the question you should provide the complete output of ffmpeg -i input where input is the file from the camera. – llogan Feb 7 '20 at 18:20
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Try these commands :

sudo apt-get install x264
x264 raw_stream.264 -o playable_video.mp4

Run the MP4 files in VLC

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    This re-encodes for no reason. Better to just re-mux. – llogan Oct 26 '15 at 17:22
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I wrote a simple bash script to convert all the files in a directory. Make sure the directory only contains the source files since the operation will run on all files in a given directory.

touch ./convert
chmod +x ./convert

edit convert

#!/bin/bash
for f in *; do
    if [ -f "$f" ] && [ "$f" != "convert" ]; then
        ffmpeg -framerate 25 -i "$f" -c copy "$f.mp4"
    fi
done

Drop in a directory with only the source files, double click and choose run

This script assumes ffmpeg is set up on you system. Not sure which libs are needed, this is what I installed before running: sudo apt install ffmpeg x264 x265 h264enc mencoder mplayer

Only run it once

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  • "this is what I installed before running: sudo apt install ffmpeg x264 x265 h264enc mencoder mplayer" Only ffmpeg is needed for this script, so the other packages are not necessary. – llogan Feb 16 at 17:48

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