[MPlayer-dev-eng] How to retrieve the actual number of audio channels?
Ingo Brückl
ib at wupperonline.de
Mon Mar 24 17:20:41 CET 2014
It seems that sh_audio->channels only reports the number of channels of a
downmix(?):
./mplayer /media/cdrom/AC3/prologe.AC3 -v
[...]
==> Found audio stream: 0
======= WAVE Format =======
Format Tag: 8192 (0x2000)
Channels: 6
Samplerate: 48000
avg byte/sec: 56000
Block align: 1
bits/sample: 0
cbSize: 0
[...]
hwac3: switched to AC3, 448000 bps, 48000 Hz
AUDIO: 48000 Hz, 2 ch, ac3be, 448.0 kbit/29.17% (ratio: 56000->192000)
How can I retrieve the information about the actual 6 channels, not just the
2 channels (which I still don't understand with AC3 pass-through S/PDIF,
by the way).
I would then block balance control for number of channels != 2.
(This question may be related to my recent postings "Sound issue with ac3 on
PC speakers" on the user list.)
Ingo
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