[FFmpeg-user] Dual Language in Satellite TV

[Bhikkhu Mettavihari]

Greetings

I hope someone can help me with adding the extra sound tracks to my video

Regards
Mettavihari


On Sat, Mar 8, 2014 at 1:32 PM, Bhikkhu Mettavihari <tv.lists at gmail.com>wrote:

> Greetings
>
> > I run several Educational Channels via  a local Satellite
>> > in *one* of our local Languages.
>> > I have been given the challenge to generate the same
>> > program in 2 languages.
>>
>> > This should be done in a way that the Television receiver
>> > can switch from language 1 to language 2 at his choice.
>>
>> > Our present production is done fully in Linux and the
>> > final product is compressed using ffmpeg.
>>
>> Please provide your current ffmpeg command line (including
>> console output), it should be trivial to add an additional
>> audio track.
>>
>
> That sounds great, Thank you.
>
> This is my script,
> or shall I say this is the part of the script that generate the 512k file
> that we use for the TV
>
> much of the full file is of cause not all relevant since it is designed
> for compressing 4 files and one image.
> I have cut out the other part.
> ========================
> #!/bin/bash
> # a script that outputs to dvd-video with ffmpeg,
> # a script that outputs to net-video with ffmpeg,
>
> # defining some variables
> path1=
>
> filename=
>
>
> filen=$(echo $filename | cut -d. -f1)
> ext=$(echo $filename | cut -d. -f2)
> file1=$(echo $filen | sed 's/\(.*\)/\L\1/')
>
> file1p1=$file1-a
> file1p2=$file1-b
> file1p3=$file1-c
>
>
> #2pass hq ffmpeg mp4 512k file
> ffmpeg -i $file1.$ext \
> -pass 1 -vcodec libx264 -preset fast -b 512k -minrate 512k -maxrate 512k
> -bufsize 512k -threads 0 -f mp4 -an -y /dev/null && \
> ffmpeg -i $file1.$ext -pass 2 -acodec libfaac -ab 128k -ac 2 -vcodec
> libx264 \
> -preset fast -b 512k -minrate 512k -maxrate 512k -bufsize 512k -threads 0
> -f mp4 $file1.temp.mp4
>
> sleep 30
> rm *.log*
>
> qt-faststart $file1.temp.mp4 $file1-512k.mp4
> rm $file1.temp.mp4
> ===============================
> This all works fine with just 1 stereo track in the video.
>
> I guess this is what you asked for.
> I am fine with rebuilding to the latest version from git if needed.
>
> editor at mettavihari:~$ ffmpeg
> ffmpeg version git-2012-05-02-b197c1c Copyright (c) 2000-2012 the FFmpeg
> developers
>   built on May  2 2012 16:36:36 with gcc 4.6.3
>   configuration: --enable-gpl --enable-libfaac --enable-libmp3lame
> --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora
> --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
> --enable-version3 --enable-x11grab
>   libavutil      51. 49.100 / 51. 49.100
>   libavcodec     54. 17.101 / 54. 17.101
>   libavformat    54.  3.100 / 54.  3.100
>   libavdevice    53.  4.100 / 53.  4.100
>   libavfilter     2. 72.102 /  2. 72.102
>   libswscale      2.  1.100 /  2.  1.100
>   libswresample   0. 11.100 /  0. 11.100
>   libpostproc    52.  0.100 / 52.  0.100
> Hyper fast Audio and Video encoder
> usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options]
> outfile}...
>
> Use -h to get full help or, even better, run 'man ffmpeg'
>
>
> Thank you for the positive attitude.
>
> Mettavihari
>



-- 
Streaming video from http://dharmavahini.tv