Hi, do you have any samples of Java code to access to this audio device, in fact a way to write and read into this msm_pcm_out driver?
On Sep 16, 4:55 pm, Chris Stratton <[email protected]> wrote: > Apps run as unpriveleged users and so can't access the audio device > directly. You are supposed to do sound through the java apis. > > pgil wrote: > > 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 > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
