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| author | Glenn Kasten <gkasten@google.com> | 2012-03-08 12:32:47 -0800 |
|---|---|---|
| committer | Glenn Kasten <gkasten@google.com> | 2012-03-08 16:18:57 -0800 |
| commit | d8f32c2989f79ca5da0e8df96f9a71bb3cefaf86 (patch) | |
| tree | 418a25c4933e1743c7d99a35f12ff06b8211d3f9 /services/audioflinger/AudioFlinger.h | |
| parent | 21b4d6b7a5959b567355aae032bd76500c148e54 (diff) | |
| download | frameworks_base-d8f32c2989f79ca5da0e8df96f9a71bb3cefaf86.zip frameworks_base-d8f32c2989f79ca5da0e8df96f9a71bb3cefaf86.tar.gz frameworks_base-d8f32c2989f79ca5da0e8df96f9a71bb3cefaf86.tar.bz2 | |
Replace hard-coded 3 by FCC_2 to simplify searches
Change-Id: I92881d04e8378307f849fb343071a58d181a68b4
Diffstat (limited to 'services/audioflinger/AudioFlinger.h')
| -rw-r--r-- | services/audioflinger/AudioFlinger.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h index 2e259c0..d9f2972 100644 --- a/services/audioflinger/AudioFlinger.h +++ b/services/audioflinger/AudioFlinger.h @@ -58,6 +58,15 @@ class AudioResampler; // ---------------------------------------------------------------------------- +// 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. +#define FCC_2 2 // FCC_2 = Fixed Channel Count 2 + static const nsecs_t kDefaultStandbyTimeInNsecs = seconds(3); class AudioFlinger : |