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AudioTrack: fix getPlaybackHeadPosition and write

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this fixes audio sync in exoplayer
This commit is contained in:
Mis012
2024-04-28 23:39:04 +02:00
parent 639a786056
commit a99dfd80cc
3 changed files with 39 additions and 9 deletions
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21
src/api-impl/android/media/AudioTrack.java
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@@ -6,6 +6,8 @@ public class AudioTrack {
void onPeriodicNotification(AudioTrack track);
}
public static final int ERROR_BAD_VALUE = -2; // basically EINVAL
public static final int PLAYSTATE_STOPPED = 1;
public static final int PLAYSTATE_PAUSED = 2;
public static final int PLAYSTATE_PLAYING = 3;
@@ -67,7 +69,7 @@ public class AudioTrack {
}
public int setPositionNotificationPeriod(int periodInFrames) {
System.out.println("\n\n\nsetPositionNotificationPeriod(" + periodInFrames + "); called\n\n\n\n");
System.out.println("\n\nAudioTrack.nsetPositionNotificationPeriod(" + periodInFrames + "); called\n\n\n\n");
return 0; // SUCCESS
}
@@ -82,16 +84,16 @@ public class AudioTrack {
}
public void stop() {
System.out.println("calling stop(), how did this not get reported before DIDREEEEEEEEEEEEEEEEEEEEEEEEE\n");
System.out.println("STUB: AudioTrack.stop()\n");
playbackState = PLAYSTATE_STOPPED;
}
public void flush() {
System.out.println("calling flush(), how did this not get reported before DIDREEEEEEEEEEEEEEEEEEEEEEEEE\n");
System.out.println("STUB: AudioTrack.flush()\n");
}
public void release() {
System.out.println("calling release(), how did this not get reported before DIDREEEEEEEEEEEEEEEEEEEEEEEEE\n");
System.out.println("calling AudioTrack.release()\n");
native_release();
}
@@ -100,6 +102,14 @@ public class AudioTrack {
}
public int write(byte[] audioData, int offsetInBytes, int sizeInBytes) {
/* sanity check the parameters before calling native_write */
if ((audioData == null)
|| (offsetInBytes < 0) || (sizeInBytes < 0)
|| (offsetInBytes + sizeInBytes < 0)
|| (offsetInBytes + sizeInBytes > audioData.length)) {
return ERROR_BAD_VALUE;
}
int framesToWrite = sizeInBytes / channels / 2; // 2 means PCM16
int ret = native_write(audioData, offsetInBytes, framesToWrite);
if (ret > 0) {
@@ -131,9 +141,10 @@ public class AudioTrack {
}
public int getPlaybackHeadPosition() {
return playbackHeadPosition;
return playbackHeadPosition - native_getPlaybackHeadPosition();
}
private native int native_getPlaybackHeadPosition();
public native void native_play();
public native void native_pause();
private native int native_write(byte[] audioData, int offsetInBytes, int sizeInBytes);