Elementary Stream Muxer - File is not a recognised video file

Simon59

New member
I have a .mp4 file which in most circumstances VideoReDo seems to handle without a problem. What I want to do is save it as elementary streams, do something to the audio in another application, and then re-multiplex the streams. Unfortunately VideoReDo won't let me.

Even ignoring any work I might want to do on the audio, if I just save the .mp4 as elementary streams and then immediately try to re-multiplex them, having done nothing to them in the meantime, the Elementary Stream Muxer reports that the .h264 file is "not a recognised video file".

Any suggestions for what I should look at or change to resolve this?
 

jmc

Active member
I have a .mp4 file which in most circumstances VideoReDo seems to handle without a problem. What I want to do is save it as elementary streams, do something to the audio in another application, and then re-multiplex the streams. Unfortunately VideoReDo won't let me.

Even ignoring any work I might want to do on the audio, if I just save the .mp4 as elementary streams and then immediately try to re-multiplex them, having done nothing to them in the meantime, the Elementary Stream Muxer reports that the .h264 file is "not a recognized video file".

Any suggestions for what I should look at or change to resolve this?
I'm thinking that there is perhaps a defect in the video that VRD catches once it
start to mux the two files back together.
Taking a file apart should be much simpler then putting one back together.

Betting that if you recode the file in VRD that it would then mux with no problem.

Another possible problem just popped into my head...
You can find video files with a video type and audio type that VRD does not support.
It may be able to take the file apart but it will not put them back together.
 

Simon59

New member
Thanks for the info, though I'm not that much the wiser as to the specific issue in this case - particularly what to look out for in the future.

The only reason I was using VRD was to avoid recoding the video, I've various applications which can take the video from the original file, the updated sound track and put them together with a re-encode,
 

jmc

Active member
Thanks for the info, though I'm not that much the wiser as to the specific issue in this case - particularly what to look out for in the future.

The only reason I was using VRD was to avoid recoding the video, I've various applications which can take the video from the original file, the updated sound track and put them together with a re-encode,

You can try and run your file through "QuickStream Fix" in VRD. (in Tools)
Look at the window of information that pops up after the QSF and see if it list any problems.
 

Dan203

Senior Developer
Staff member
That's odd. If VRD can open the MP4 then it should be able to open the .h264 ES stream from it. Try going to Options-> Stream Parameters and increasing the MBytes to scan option and see if that makes any difference.
 
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