AudioTrack construction with audio attributes
Store audio attributes in AudioTrack class.
When an AudioTrack is "set" with non null audio
attributes, derive a stream type that reflects
the attributes.
When an AudioTrack is "set" without attributes,
and only has a stream type, derive default
audio attributes.
Change-Id: I322b91fa9a7e193118960c5e78cdddd85d66f9ad
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index 79db323..5dc77a3 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -253,7 +253,8 @@
transfer_type transferType = TRANSFER_DEFAULT,
const audio_offload_info_t *offloadInfo = NULL,
int uid = -1,
- pid_t pid = -1);
+ pid_t pid = -1,
+ audio_attributes_t* pAttributes = NULL);
/* Result of constructing the AudioTrack. This must be checked for successful initialization
* before using any AudioTrack API (except for set()), because using
@@ -586,6 +587,11 @@
AudioTrack(const AudioTrack& other);
AudioTrack& operator = (const AudioTrack& other);
+ void setAttributesFromStreamType(audio_stream_type_t streamType);
+ void setStreamTypeFromAttributes(audio_attributes_t& aa);
+ /* paa is guaranteed non-NULL */
+ bool isValidAttributes(const audio_attributes_t *paa);
+
/* a small internal class to handle the callback */
class AudioTrackThread : public Thread
{
@@ -667,6 +673,7 @@
transfer_type mTransfer;
audio_offload_info_t mOffloadInfoCopy;
const audio_offload_info_t* mOffloadInfo;
+ audio_attributes_t mAttributes;
// mFrameSize is equal to mFrameSizeAF for non-PCM or 16-bit PCM data. For 8-bit PCM data, it's
// twice as large as mFrameSize because data is expanded to 16-bit before it's stored in buffer.