Volume control for bit-perfect thread.

When there is a track play bit-perfectly, the framework will no longer
apply software volume control in the mixer. In that case, the audio
framework need to send the volume command down to the HAL.

Bug: 262578034
Test: adjust volume while play bit-perfectly
Change-Id: I927a9bd20b7fcce841a133c2786bdc4b352afa30
diff --git a/media/libaudioprocessing/AudioMixerBase.cpp b/media/libaudioprocessing/AudioMixerBase.cpp
index fd06991..427bd55 100644
--- a/media/libaudioprocessing/AudioMixerBase.cpp
+++ b/media/libaudioprocessing/AudioMixerBase.cpp
@@ -152,6 +152,7 @@
                 AUDIO_CHANNEL_REPRESENTATION_POSITION, AUDIO_CHANNEL_OUT_STEREO);
         t->mMixerChannelCount = audio_channel_count_from_out_mask(t->mMixerChannelMask);
         t->mTeeBufferFrameCount = 0;
+        t->mInputFrameSize = audio_bytes_per_frame(t->channelCount, t->mFormat);
         status_t status = postCreateTrack(t.get());
         if (status != OK) return status;
         mTracks[name] = t;
@@ -178,6 +179,7 @@
     track->channelCount = trackChannelCount;
     track->mMixerChannelMask = mixerChannelMask;
     track->mMixerChannelCount = mixerChannelCount;
+    track->mInputFrameSize = audio_bytes_per_frame(track->channelCount, track->mFormat);
 
     // Resampler channels may have changed.
     track->recreateResampler(mSampleRate);