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Help transcoding video with avconv

I'm trying to convert Blender Foundation videos into a format accepted by an oppo BDP-83 projector but I'm failing miserably and don't know how to proceed.

For instance, for Elephants Dream, I'm trying the following sequence of commands:

Code:

avconv -y -i /home/mpn/FOSS-TGIF/blender/ED_HD.avi -pass 1 -passlogfile ED_HD \

    -c:v libxvid -maxrate 20000k -minrate 16000k -b:v 18000k -bufsize 32768 \

    -mbd 2 -bf 2 -aspect 16:9 -s 1920x1080 -an -r 29.97 -f rawvideo /dev/null

avconv -y -i /home/mpn/FOSS-TGIF/blender/ED_HD.avi -pass 2 -passlogfile ED_HD \

    -c:v libxvid -maxrate 12000k -minrate 12000k -bufsize 32768 -mbd 2 -bf 2 \

    -aspect 16:9 -s 1920x1080 -c:a libmp3lame -ar 48000 -ab 128k -ac 2 \

    -r 29.97 -f avi ED_HD.avi

but it generates a terrible quality video.

And when trying analogous commands for Sintel no usable output is created.

As a matter of fact, it would be ideal if for some of the content I could just pass it as-is. For instance, Sintel uses h264 for video and AAC for audio which both seem to be supported by BD player I'm interested it, yet the container is not, so all I really need is to move streams from one container to another.

Any help would be greatly appreciated!

Try:

Code:

ffmpeg -i input.mkv -vcodec libxvid -q:v 5 -s 640x272 -aspect 640:272 -r 23.976 -g 240 -bf 2 -acodec libmp3lame -ab 160k -ar 48000 -async 48000 -ac 2 -pass 1 -an -f rawvideo -y /dev/null

ffmpeg -i input.mkv -vcodec libxvid -q:v 5 -s 640x272 -aspect 640:272 -r 23.976 -g 240 -bf 2 -acodec libmp3lame -ab 160k -ar 48000 -async 48000 -ac 2 -pass 2 output.avi

I'm pretty sure replacing 'ffmpeg' with 'avconv' will work just fine.

Thanks! “-q:v 5” is what I needed.

I've also found “-c:a copy” which avoids transcoding (even though MPlayer was unable to seek correctly if audio stream has been copied, ie. seeking video worked fine but audio started from start each time).

Which video are you trying to convert anyway ? The projector says it supports h264 and aac, and various different containers.

That is correct, but when the video is encoded using supported code it's in unsupported container and the other way around, so I could not find a working file.

To convert containers you just use '-vcodec copy' and '-acodec copy' and put the output format as needed.