[FFmpeg-user] 7.1 audio in AAC.

[Dennis]

Hi.

How can encode PCM 7.1 ch to AAC preserving the channels?

it seems vo-aacenc only supports 2 channels (AACEncoder.cpp):
    if (mChannels > 2 || mChannels <= 0) {
        ALOGE("Unsupported number of channels(%d)", mChannels);

and libfaac stops at 5.1 channels:    [libfaac @ 0x93bbb60] encoding 8
channel(s) is not allowed

Here's the sample file:
http://www-mmsp.ece.mcgill.ca/documents/audioformats/wave/Samples/Microsoft/8_Channel_ID.wav
Any advice is welcome. Hoping to use ffmpeg/ffmbc/avconv binary.

Thank yous.
Dennis.