2014-05-05, 20:29
I'm trying to make an omap4 phone (motorola droid 4) with cyanogenmod 11 bitstream multichannel sound.
The kernel has support for bitstream and full hdmi lpcm (except 24bit, it has static noise), I tested it with tinyplay playing some ac3,dts and multichannel lpcm files.
if I let the sound in audio_policy.conf to be stereo and without direct flag it would play stereo and if I add the direct flag xbmc would crash, I added some code from omapzoom and other hacks to the AudioFlinger (libstrageflight) and I got it working with direct flag, but it would still play stereo. In sound options I can't select the sound device, I only have android:audiotrack, enabling/disabling passthrough would not have any effect
where should I investigate is this possible ?
xbmc with flags AUDIO_OUTPUT_FLAG_DIRECT :
full log without AUDIO_OUTPUT_FLAG_DIRECT :
pastebin
regards
The kernel has support for bitstream and full hdmi lpcm (except 24bit, it has static noise), I tested it with tinyplay playing some ac3,dts and multichannel lpcm files.
if I let the sound in audio_policy.conf to be stereo and without direct flag it would play stereo and if I add the direct flag xbmc would crash, I added some code from omapzoom and other hacks to the AudioFlinger (libstrageflight) and I got it working with direct flag, but it would still play stereo. In sound options I can't select the sound device, I only have android:audiotrack, enabling/disabling passthrough would not have any effect
where should I investigate is this possible ?
Code:
tinypcminfo -D 1
Info for card 1, device 0:
PCM out:
Rate: min=8000Hz max=192000Hz
Channels: min=1 max=8
Sample bits: min=8 max=32
Period size: min=4 max=65472
Period count: min=2 max=255xbmc with flags AUDIO_OUTPUT_FLAG_DIRECT :
Code:
V/XBMC ( 6073): 21:20:06 T:1567682800 INFO: CActiveAESink::OpenSink - initialize sink
V/XBMC ( 6073): 21:20:06 T:1567682800 DEBUG: CActiveAESink::OpenSink - trying to open device AUDIOTRACK:AudioTrack
W/AudioPolicyManagerBase( 6026): getOutput() could not find output for stream 3, samplingRate 0,format 0, channels 3, flags 0
E/AudioTrack-JNI( 6073): AudioSystem::getOutputSamplingRate() for stream type 3 failed in AudioTrack JNI
W/AudioPolicyManagerBase( 6026): getOutput() could not find output for stream 3, samplingRate 0,format 0, channels 3, flags 0
E/android.media.AudioTrack( 6073): getMinBufferSize(): error querying hardware
W/dalvikvm( 6073): Exception thrown (Ljava/lang/IllegalArgumentException;) while throwing internal exception (Ljava/lang/OutOfMemoryError;)
V/XBMC ( 6073): CXBMCApp::SetSystemVolume: Could not get Audio Manager
V/XBMC ( 6073): CXBMCApp::SetSystemVolume: Could not get Audio Manager
V/XBMC ( 6073): CXBMCApp::SetSystemVolume: Could not get Audio Managerfull log without AUDIO_OUTPUT_FLAG_DIRECT :
pastebin
regards
