HandBrake

Hi Folks,

I would like to change a few DVD rips, so that they have multiple audio tracks.

This is the original command:-

HandBrakeCLI --input /dev/dvd --main-feature --audio-lang-list eng --aencoder copy:ac3 --output "movie.mp4"

Instead of ripping the original DVD again, I would like to run HandBrakeCLI with some sort of video passthrough which keeps the video track untouched and then just encode the single original DVD surround audio track in to 2 audio tracks... AAC + AC-3 Passthrough.

Stream #0.0(und): Video: h264 (Main), yuv420p, 720x424 [PAR 64:45 DAR 128:53], 903 kb/s, 25 fps, 25 tbr, 90k tbn, 180k tbc
Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, fltp, 159 kb/s
Stream #0.2(eng): Audio: ac3, 48000 Hz, 5.1, fltp, 384 kb/s

However, I cannot see a video passthrough option on the command line help.

If HandBrakeCLI cannot do this, what is the best ffmpeg alternative?

Thanks for your help.

Regards,

Paully

HandBrake 20160611220333-44a359d-master
Ubuntu 14.04.4 LTS

HB cannot do video passthrough, I'm not sure of alternatives on linux.

plittlefield wrote:If HandBrakeCLI cannot do this, what is the best ffmpeg alternative?

avconv

What's wrong with using ffmpeg?

OK, now I know HB cannot do video passthrough (although it kind of goes against "what it does", IMHO I think it would be neat to have "--encoder copy" as an option, why not?

OK, so I have used ffmpeg or avconv before, I was not sure of the specific command line options.

So far, I have built this command line up, but wanted to check with you experts on the "multiple audio tracks" part, so that it creates a libaac and a copied ac-3 stream.

avconv -i input.mp4 -vcodec copy -acodec libfaac -ac 2 -ar 48000 -ab 160k -acodec copy output.mp4

I am not familiar with the 'map' option, but basically, I just need to encode the existing ac-3 audio as an aac track, then copy that same ac-3 track as the second audio track.

From this...

Stream #0.0(und): Video: h264 (Main), yuv420p, 720x424 [PAR 64:45 DAR 128:53], 911 kb/s, 25 fps, 25 tbr, 90k tbn, 180k tbc
Stream #0.1(eng): Audio: ac3, 48000 Hz, 5.1, fltp, 448 kb/s

...to this...

Stream #0.0(und): Video: h264 (Main), yuv420p, 720x424 [PAR 64:45 DAR 128:53], 911 kb/s, 25 fps, 25 tbr, 90k tbn, 180k tbc
Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, fltp, 160 kb/s
Stream #0.2(eng): Audio: ac3, 48000 Hz, 5.1, fltp, 448 kb/s

Is this possible, and can you show me the correct full ffmpeg / avconv command line please?

Thank you!



Paully

https://libav.org/avconv.html#Main-options
https://libav.org/avconv.html#Advanced-options

It should be noted that -vcodec and -acodec are aliases to legacy option names that don't always work well in my experience. I recommend using -codec instead.

I would try this:
select input stream 0:0, input stream 0:1 and input stream 0:1 again set encoder to passthgrough for output stream 0 (video track) set encoder to passthgrough for output stream 1 (first audio track) (you should build avconv with libfdk_aac, it's better than libfaac) set bitrate to 160 Kbps, sample rate to 48 kHz and number of channels to 2 (Stereo) for output stream 1 (first audfio track) set encoder to passthgrough for output stream 2 (second audio track)

Amazing, thank you for being so quick and so detailed with your reply.

Much appreciated.

Regards,

Paully

plittlefield wrote:OK, now I know HB cannot do video passthrough (although it kind of goes against "what it does", IMHO I think it would be neat to have "--encoder copy" as an option, why not?

Would merely require a full rearchitecting of the entire program.

There are plenty of tools on all platforms for remuxing with audio changes. HB is not one of them.

If you need to automate the process, all you need to do is figure out a script to run Handbrake and MP4Box interdependently, I would think.

Moved to Tiki Bar.

Firstly, thank you to everyone for replying to this thread.

Rodeo's command line works a treat.

How would I also include the 'chapter' metadata information in the finished MP4 file?

Here is a sample source MP4 file that I would like to copy the video, convert and add 2 audio tracks, drop the subtitles track, but add the Chapters information...

http://pastebin.com/3PD8KTiJ

Many thanks,

Paully

No clue about that, sorry.

You should be able to do that straightaway in mp4Box.

Well, i must say... it would be nice to have an option for video-pass through in handbrake. Just for making new .ssa files or audio conversions only.

You have my vote for a future update

With dozens of free programs out there to do remuxing (which is what you're asking for), why would it be "nice" to add to a program that was never intended to be "just" a remuxer?

--=BJ=-- Let's try to avoid resurrecting 7 month old threads.