Difference between revisions of "Extract DVD"
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Detect the amount to crop. Depending on the size also the bitrate will be calculated | Detect the amount to crop. Depending on the size also the bitrate will be calculated | ||
<pre> | <pre> | ||
| − | crop=`avconv -y -ss 60 -i <title>1.vob -map 0:<videostream> -t 10 -vf cropdetect -an -sn -f rawvideo /dev/null 2>&1 | tail | head -n 1 | sed 's/^.*crop=//'`; echo ${crop}; width=`echo ${crop} | cut -d : -f 1`; height=`echo ${crop} | cut -d : -f 2`; echo $((${width}*${height}* | + | crop=`avconv -y -ss 60 -i <title>1.vob -map 0:<videostream> -t 10 -vf cropdetect -an -sn -f rawvideo /dev/null 2>&1 | tail | head -n 1 | sed 's/^.*crop=//'`; echo ${crop}; width=`echo ${crop} | cut -d : -f 1`; height=`echo ${crop} | cut -d : -f 2`; echo $((${width}*${height}*4/1000)) |
</pre> | </pre> | ||
videobitrate=(width*height*4)/1000 | videobitrate=(width*height*4)/1000 | ||
Revision as of 20:00, 26 March 2012
This describes how to convert a DVD to mkv using:
- x264 for video
- ac3 for audio
- any subtitles
Installation
Install the packages
apt-get install lsdvd ffmpeg vobcopy oggz-tools
For using encrypted DVDs build and install libdvdcss from http://download.videolan.org/pub/libdvdcss/last
./configure --prefix=/usr make make install
Prepare
Use lsdvd to see what's on DVD. Determine the stream you would like to extract as well as the aid for audio and the sid for subtitles.
lsdvd -x
Write the stream to the harddrive so the next steps will go faster.
vobcopy -l -n <stream> -t <title>
Audio
Now extract audio from the stream and convert to OGG. If the original audiostream if stereo take 128 (2 channel) or 256 (6 channel) for the bitrate.
avconv -y -i <title>1.vob -map 0:<audiostream> -f ogg -c:a libvorbis -b:a <bitrate>k -ar 44100 -vn -sn <title>.audio
Video
Detect the amount to crop. Depending on the size also the bitrate will be calculated
crop=`avconv -y -ss 60 -i <title>1.vob -map 0:<videostream> -t 10 -vf cropdetect -an -sn -f rawvideo /dev/null 2>&1 | tail | head -n 1 | sed 's/^.*crop=//'`; echo ${crop}; width=`echo ${crop} | cut -d : -f 1`; height=`echo ${crop} | cut -d : -f 2`; echo $((${width}*${height}*4/1000))
videobitrate=(width*height*4)/1000 Convert the video stream to ogv
avconv -y -pass 1 -i <title>1.vob -map 0:<videostream> -vf crop=<cropvalues> -g 250 -bf 16 -b:v <videobitrate>k -c:v libtheora -an -sn -f ogg <title>.video avconv -y -pass 2 -i <title>1.vob -map 0:<videostream> -vf crop=<cropvalues> -g 250 -bf 16 -b:v <videobitrate>k -c:v libtheora -an -sn -f ogg <title>.video
Subtitles
Extract the subtitles from the stream.
mencoder <title>1.vob -oac copy -nosound -ovc frameno -o /dev/null -sid <sid> -vobsubout <title> -vobsuboutindex <index> -vobsuboutid <langcode>
Merging
Combine everything in a ogg container
oggz-merge -o <title>.ogv <title>.video <title>.audio
