posts/mkv-to-mpeg-4-conversion-script/

[flexiondotorg]

MKV to MPEG-4 conversion script

https://wimpress.com/posts/mkv-to-mpeg-4-conversion-script/

[flexiondotorg]

Originally posted by John Goodwin on 2009-08-28 07:23

Great blog, I've just spent the last hour or so browsing through it.

You have some great articles which I will explore in depth tomorrow which are of interest to me as a fellow Ubuntu user and HP-UX SysAdmin in my spare time... oh, I meant work.

Keep up the good work!

Kind regards

John Goodwin.

P.S. Discovered via Google for Blubuntu advice

[flexiondotorg]

Originally posted by Bill on 2009-09-09 04:17

I'm getting the following errors while using your script:

sox soxio: Failed reading `-': unknown file type `auto'
ERROR: could not parse WAV file

and

Unknown input file type
Error importing True_Blood_S02E11_720p_HDTV_X264_DIMENSION_2ch.m4a: Requested URL is not valid or cannot be found
Removing temporary files
- True_Blood_S02E11_720p_HDTV_X264_DIMENSION.h264
-
- True_Blood_S02E11_720p_HDTV_X264_DIMENSION_2ch.m4a
- True_Blood_S02E11_720p_HDTV_X264_DIMENSION_2ch.aac
All Done!

I only end up with
True_Blood_S02E11_720p_HDTV_X264_DIMENSION.AC3

For output. Seems to be something with sox.

Thanks,
Bill

[flexiondotorg]

Originally posted by Bill on 2009-09-09 04:47

Ok, I fixed the unknown file type 'auto' with:

sudo apt-get install libsox-fmt-all

Now I still getting the failed reading '-'

Bill

[flexiondotorg]

Originally posted by Bill on 2009-09-09 04:52

Sorry to be a pest, but it did out put an mp4 file with the --faac flag....shrug. I do have NeroAacEnc installed and residing in my path of ~/bin.

[flexiondotorg]

Originally posted by Martin Wimpress on 2009-09-20 13:59

@Bill: Sorry to hear you're having difficulties and sorry for the late reply, I must do better at approving comments quickly. I've not seen the error you are reporting but if I encounter the problem myself, I'll endeavour to fix it. I am pleased to here that you can work around the issue using the '--faac' option.

Thanks for posting the package dependency it may help others, although I recommend installing packages with 'aptitude' to ensure all recommended packages are also installed. It can help avoid the issues like the one you ran into.

[flexiondotorg]

Originally posted by saúl on 2009-11-10 14:06

Your script don't work with more than one audio track, i modify this lines:
AUDIO_ID=`grep audio ${MKV_TRACKS} | cut -d' ' -f3 | sed 's/://' | head -n 1`
AUDIO_FORMAT=`grep audio ${MKV_TRACKS} | cut -d' ' -f5 | sed 's/(\|A_\|)//g' | head -n 1`

and add this lines below of the past lines:
if [ "$VIDEO_ID" = "" ]; then VIDEO_ID=0; fi
if [ "$AUDIO_ID" = "" ]; then AUDIO_ID=0; fi
if [ "$SUBS_ID" = "" ]; then SUBS_ID=0 ; fi

Thanks for share your work!

Sorry for my bad english. I'm mexican.

[flexiondotorg]

Originally posted by mathew on 2009-12-03 20:02

Wow, it works!

I must have spent hours trying various alleged methods to convert MKV files into standard MP4s without re-encoding the video. Yours is the first that has resulted in an MP4 that'll actually be played by QuickTime and the PS3.

[flexiondotorg]

Originally posted by Martin Wimpress on 2009-12-04 11:44

@saúl: Thanks for your code. I'll release a new version that incorporates your changes.

@Mathew: Glad it worked, thanks for the endorsement :-)

[flexiondotorg]

Originally posted by Marcelo Culotta on 2011-09-01 21:23

For converting MKV DTS to MKV ac3 in UBUNTU, I use two applications:
WinFF and MKVmerge (it shows as MKV files creator in the Applications menu)

1. WinFF:For creating the AC3 audio track, I open WinFF, then I Add the MKV file that contains the DTS track. In Output details, I select

Convet to Audio
Device Preset Ac3 - 384kbps Stereo
Output Folder Any folder you like (I use the one containing the MKV file)

This will create an audio file with the same name as the MKV file, but with the ac3 extension

2. MKV files creator (mkvmerge)

Input Files: add the MKV file for which you created the ac3 audio track.
In the Tracks, chapters and tags, UNSELECT the DTS audio file
Input files again: add the ac3 file that you created with WinFF
Start muxing

This creates a file with the same name as the MKV file, except it has a (1) added to it that will have the ac3 audio track for playing as 2 channel stereo.

I hope this helps!