Bug 4599730 Get audio channel count on MediaPlayer
Related changes:
- Fix bug in get/setParameter* to recycle Parcels when done with them.
Change-Id: Iaff05e91bbd99a14fccb79d816dd873359b6ae65
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
index 1136f6c..1a67671 100644
--- a/include/media/mediaplayer.h
+++ b/include/media/mediaplayer.h
@@ -130,13 +130,22 @@
MEDIA_PLAYER_PLAYBACK_COMPLETE = 1 << 7
};
-enum media_set_parameter_keys {
- KEY_PARAMETER_TIMED_TEXT_TRACK_INDEX = 1000,
- KEY_PARAMETER_TIMED_TEXT_ADD_OUT_OF_BAND_SOURCE = 1001,
+// Keep KEY_PARAMETER_* in sync with MediaPlayer.java.
+// The same enum space is used for both set and get, in case there are future keys that
+// can be both set and get. But as of now, all parameters are either set only or get only.
+enum media_parameter_keys {
+ KEY_PARAMETER_TIMED_TEXT_TRACK_INDEX = 1000, // set only
+ KEY_PARAMETER_TIMED_TEXT_ADD_OUT_OF_BAND_SOURCE = 1001, // set only
// Streaming/buffering parameters
- KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100,
+ KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100, // set only
+
+ // Return a Parcel containing a single int, which is the channel count of the
+ // audio track, or zero for error (e.g. no audio track) or unknown.
+ KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200, // get only
+
};
+
// ----------------------------------------------------------------------------
// ref-counted object for callbacks
class MediaPlayerListener: virtual public RefBase