Transcoding BlueRay (.m2ts) to .ts

[amar]

I have some BlueRay movies and I want to view them on different devices (e.g. mobile tablet). So I need an acceptable file size (5 GB instead of 35 GB) and a file format that can be used on different devices. But I don't want to loose too much quality. To reach that goal, I have to do the following:
- transcode the video stream
- keep only my favorite audio streams (e.g. EN and FR)
- keep only my favorite subtitles (e.g. EN and FR)

I use the latest version of VLC (currently 2.1.3 32 Bit) on Windows 8.1 (64 Bit) and execute the following command:

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vlc.exe sourcefile.m2ts -I dummy -vvv --file-logging --logfile=transcode.log --sout-all --sout-x264-cabac --sout-x264-qp=20 --sout-x264-keyint=50 --sout-avcodec-strict=-2 --sout-standard-dst=destinationfile.ts --sout "#transcode{vcodec=h264,venc=x264,acodec=mp4a,ab=128}:standard{access=file,mux=ts}" vlc://quit

I run into the following Problems:

1. I can not keep my favorite audio streams: The option --sout-all gives me all audio streams but I want only EN and FR. And the option --audio-track=5 let me only choose either EN or FR but not both.

2. The same issue existes with the subtitles.

3. There seems to be a problem with the audio transcoding: The log says:

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[aac @ 03752960] Unsupported number of channels: 8 [aac @ 03752960] Channel layout '7.1' with 8 channels does not match number of s pecified channels 2

4. The subtitles can not be included in the ts file. The log says "main error: cannot create packetizer output (bdpg)". I also tried to transcode the subtitles by adding the command senc=dvbs but without success: it reports the error "dvbsub encoder error: chroma RGBA not supported"

Has anybody an idea how to solve these issues? I think that my use case is "common enough" so that a powerful tool like vlc should be able to handle this, I can't figure out how...
Thanks for your help.

[Jean-Baptiste Kempf]

1. You can use #select , but it might be broken
2. indeed. But they don't take that much space.
3. our encoder only support 6 channels, IIRC.
4. Indeed, this is not supported. File an enhancement request.

To be honest, you should use handbrake, not VLC for this.

[amar]

Thanks for this advice, I tried HandBrake and it works fine for this purpose!