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Fix for bug 2001, verify that the AudioTrack is properly initialized

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...and fail to initialize the audio backend if it's not!
This commit is contained in:
Gabriel Jacobo 2013-07-31 10:04:59 -03:00
parent 2f7e78480d
commit 512f5dfc21
2 changed files with 18 additions and 3 deletions
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13
android-project/src/org/libsdl/app/SDLActivity.java
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@ -452,7 +452,7 @@ public class SDLActivity extends Activity {
}
// Audio
public static void audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
public static int audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
int channelConfig = isStereo ? AudioFormat.CHANNEL_CONFIGURATION_STEREO : AudioFormat.CHANNEL_CONFIGURATION_MONO;
int audioFormat = is16Bit ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT;
int frameSize = (isStereo ? 2 : 1) * (is16Bit ? 2 : 1);
@ -467,9 +467,20 @@ public class SDLActivity extends Activity {
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate,
channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
// Instantiating AudioTrack can "succeed" without an exception and the track may still be invalid
// Ref: https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/media/java/android/media/AudioTrack.java
// Ref: http://developer.android.com/reference/android/media/AudioTrack.html#getState()
if (mAudioTrack.getState() != AudioTrack.STATE_INITIALIZED) {
Log.e("SDL", "Failed during initialization of Audio Track");
return -1;
}
audioStartThread();
Log.v("SDL", "SDL audio: got " + ((mAudioTrack.getChannelCount() >= 2) ? "stereo" : "mono") + " " + ((mAudioTrack.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) ? "16-bit" : "8-bit") + " " + (mAudioTrack.getSampleRate() / 1000f) + "kHz, " + desiredFrames + " frames buffer");
return 0;
}
public static void audioStartThread() {