android-discuss, how to remove a notification with flag FLAG_NO_CLEAR

1. Failed to open /dev/msm_pcm_out for writing

I would like to open an mp3 file with my own audio player(based on
mplayer and FFmpeg) I packaged in a apk file. It runs fine using
command line and the executable version but not when packaged in apk.
I got the messages using adb logcat window:

I/stdout  ( 2115): PCM: Samplerate: 48000Hz Channels: Stereo Format
s16le
I/stdout  ( 2115): [AO PCM] Info: Faster dumping is achieved with -vc
null -vo null -ao pcm:fast
I/stdout  ( 2115): [AO PCM] Info: To write WAVE files use -ao
pcm:waveheader (default).
I/stderr  ( 2115): [AO PCM] Failed to open /dev/msm_pcm_out for
writing!
I/stderr  ( 2115): Failed to initialize audio driver 'pcm:file=/dev/
msm_pcm_out'
I/stderr  ( 2115): Could not open/initialize audio device -> no sound.
I/stdout  ( 2115): Audio: no sound
I/stdout  ( 2115): Video: no video
I/stdout  ( 2115): Exiting... (End of file)

I put the permission in the manifest file as follows:

  <uses-permission
android:name="android.permission.WRITE_SECURE_SETTINGS"></uses-
permission>
  <uses-permission android:name="android.permission.WRITE_SETTINGS"></
uses-permission>
  <uses-permission android:name="android.permission.RECORD_AUDIO"></
uses-permission>
  <uses-permission
android:name="android.permission.MODIFY_AUDIO_SETTINGS"></uses-
permission>
  <uses-permission android:name="android.permission.FACTORY_TEST"></
uses-permission>
  <uses-permission android:name="android.permission.HARDWARE_TEST"></
uses-permission>
  <uses-permission android:name="android.permission.INTERNET"></uses-
permission>
  <uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-
permission>


Any idea about what's wrong! Any help would be appreciated.

best regards

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2. Database of android device configurations

Is there a database anywhere that has all of the different devices
that use the android operating system and what their technical specs
are.  Mainly screen size, screen density, internal storage, external
storage, memory, etc.

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