Fix several audio effects problems.

Fixed the following issues in LVM effect bundle wrapper:
- memory leaks in EffectCreate() in case effect creation fails at various stages
- Added saturation when accumulating to output buffer
- Fixed problems with enabled effects count when an effect is released while enabled
- Do not allocate temporary buffer for accumulation each time process() is called

Fixed the following issues in effects framework (AudioFlinger)
- Release effect synchronously in the library when deleted from effect chain
- Do not call the effect process function if no tracks are present in the same
audio session

Change-Id: Ifbd80a163415cfb3c0a337c12082853ea45d9c91

1 files changed, 2 insertions, 1 deletions

diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
index 91963af..2b51029 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
@@ -88,12 +88,13 @@ struct BundledEffectContext{
     int                             positionSaved;
     bool                            bMuteEnabled;   /* Must store as mute = -96dB level */
     bool                            bStereoPositionEnabled;
-    int                             frameCount;
     LVM_Fs_en                       SampleRate;
     int                             SamplesPerSecond;
     int                             SamplesToExitCountEq;
     int                             SamplesToExitCountBb;
     int                             SamplesToExitCountVirt;
+    LVM_INT16                       *workBuffer;
+    int                             frameCount;
     #ifdef LVM_PCM
     FILE                            *PcmInPtr;
     FILE                            *PcmOutPtr;