MPlayer audio channel (left/right) switching

Question

I'm trying to make an application, media player using mplayer slave mode. Any clue about switching VCD Karaoke channel (left and right) on the fly, while the video is playing on the mplayer-slave mode?

Thanks.

Answer 1

[SOLVED]

switching audio track with

LEFT echo "af pan=2:1:1:0:0" > slave_fifo_file

RIGHT echo "af pan=2:0:0:1:1" > slave_fifo_file

Answer 2

I also hard to find this solution and finally found that

af_add pan=2:1:1:0:0

af_add pan=2:0:0:1:1

is working for changing audio channel Left to Right for VCD karaoke channels. I hope this will help you developing your Karaoke software.

I developed basic music player using mplayer and VB.NET. If you are interested please tell me.