Here is some background of this long lasting problem : https://answers.launchpad.net/kazam/+question/218308
I am posting it to get some valuable suggestions from video gurus here.
About Kazam :
kazam is a screen recording tool which also records audio. Once the recording is finished, a popup comes and then we can save the video into a mp4 file.
Sometimes, in particular when the screen recording time is large like, 2~3 hrs, in those cases, the pop up does not come up. so, basically we cannot save the recorded data into a file.
We find 2 residual files. with .movie and .mux
kazam_5e8ob247.movie.mux(~ 1.2 GB)
.movie file is of 0 bytes. So, this is just a temporary file.
.mux contains the real data and is of ~1.2 gb.
How can I recover the .mux file?
I see from kazam source code (https://github.com/sconts/kazam) that it is using Gstreamer internally.
So, can you please suggest an appropriate gst-pipeline that can convert .mux into a playable .mp4 file?
To provide more details, I tried to get some information about the recorded stream using gst-discoverer-1.0. But it fails saying it cannot read any details.
gst-discoverer-1.0 kazam_5e8ob247.movie.mux Analyzing file:///home/sandeep/sw/samples/kazam_5e8ob247.movie.mux Done discovering file:///home/sandeep/sw/samples/kazam_5e8ob247.movie.mux An error was encountered while discovering the file Could not determine type of stream.
First 1 MB :
To analyze, the first 1 MB of the file can be found here