AudioFlinger has a hard-coded upper limit of 2 channels for capture and playback.

There is support for > 2 channel tracks down-mixed to 2 channel output via a down-mix effect.

Adding full support for > 2 channel capture or playback would require more than simply changing

this #define. There is an independent hard-coded upper limit in AudioMixer

removing that AudioMixer limit would be necessary but insufficient to support > 2 channels.

The macro FCC_2 highlights some (but not all) places where there is are 2-channel assumptions.

Search also for 2 , left , right , [0] , [1] , >> 16 , << 16 , etc.-AudioFlinger has a hard-coded upper limit of 2 channels for capture and playback.

There is support for > 2 channel tracks down-mixed to 2 channel output via a down-mix effect.

Adding full support for > 2 channel capture or playback would require more than simply changing

this #define.　There is an independent hard-coded upper limit in AudioMixer

removing that AudioMixer limit would be necessary but insufficient to support > 2 channels.

The macro FCC_2 highlights some (but not all) places where there is are 2-channel assumptions.

Search also for　2 ,　left ,　right ,　[0] ,　[1] ,　>> 16 ,　<< 16 , etc.