Demux Quicktime .MOV into original MPEG-2 ??

[mob]

Hi everyone!

I have a Quicktime video in a .mov container. Here is the info about this video:

http://www.imagebam.com/image/1dd814104850252

I want to demux this file back into the original MPEG-2

I'm 99% sure this can be done with a simple demux without any quality loss, I'm just not sure how!

Can anyone help?

[poisondeathray]

did you want to demux into elementary stream or re-wrap into mpeg2 program stream (.mpg) ?

you can rewrap with ffmpeg

e.g.

ffmpeg -i input.mov -vcodec copy -acodec copy -f vob -output.mpg -acodec copy -newaudio

If you have many to do you can make a batch file to batch process as well

[mob]

Hey thanks for the help poisondeathray

I had a feeling ffmpeg would be the solution. Yes, re-wrap into .mpg is exactly what I need.

I'm going to give it a try. I'll be sure post back my results. Thanks!

[mob]

Half way there. I had some time today to mess around with these videos.

I used that command line that you gave me and I got a .mpg file that plays perfectly fine, only there is no sound.

Any ideas on what can be done?

[poisondeathray]

what are you using to play?

try smplayer

what does mediainfo say (view=>text) about the re-wrapped file ?

[mob]

Hey thanks again for your help! btw, sorry for taking so long to get back to you!

I've tried playing it in MPC and just now in SMplayer as well. Both have no audio.

Mediainfo shows that there are 2 audio tracks in the output file, but both of them appear to be silent.

I've uploaded the original video here: http://www.sendspace.com/file/i2dfpf

Maybe there is something wrong with it? I know mediainfo shows 4 audio tracks in the original video, but really there is only one.. so it's strange.

[poisondeathray]

Convert it to mxf using this utility appended below, and vlc or smplayer will play it (or mpc depending on how you have it set up). Most NLE's should accept it as well (with 4 channels preserved)

[bat999]

@ mob
Hi
There is something strange about the sound channel in the video that you posted.
You can fix it using a command like this:-

ffmpeg -i video.mov -vcodec copy -acodec pcm_s16le video2.mov

Then convert it to something else.

I think this command is suitable for mpeg2 program stream:-

ffmpeg -i video2.mov -vcodec copy -f vob video3.mpg

This will use your original video content and mp2 sound.

[mob]

Great stuff!

Many thanks to the both of you, I've now got it all sorted out. Perfect!