Add client side support for more AUDIO_FORMAT_PCM_*
As much as possible, the checks for specific formats are done on server
side. The only exception is 8-bit, which needs a client side workaround.
Change-Id: I52fe086c039460c8dac009de03b67eb54c56a836
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index 2c48bbf..79db323 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -154,8 +154,9 @@
* streamType: Select the type of audio stream this track is attached to
* (e.g. AUDIO_STREAM_MUSIC).
* sampleRate: Data source sampling rate in Hz.
- * format: Audio format (e.g AUDIO_FORMAT_PCM_16_BIT for signed
- * 16 bits per sample).
+ * format: Audio format. For mixed tracks, any PCM format supported by server is OK
+ * or AUDIO_FORMAT_PCM_8_BIT which is handled on client side. For direct
+ * and offloaded tracks, the possible format(s) depends on the output sink.
* channelMask: Channel mask, such that audio_is_output_channel(channelMask) is true.
* frameCount: Minimum size of track PCM buffer in frames. This defines the
* application's contribution to the