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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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17
src/api-impl-jni/audio/android_media_AudioTrack.c
View File

@@ -217,7 +217,7 @@ JNIEXPORT void JNICALL Java_android_media_AudioTrack_native_1play(JNIEnv *env, j
/*--↑*/
}
JNIEXPORT jint JNICALL Java_android_media_AudioTrack_native_1write(JNIEnv *env, jobject this, jbyteArray audioData, jint offsetInBytes, jint frames_to_write)
JNIEXPORT jint JNICALL Java_android_media_AudioTrack_native_1write(JNIEnv *env, jobject this, jbyteArray audio_data, jint offset_in_bytes, jint frames_to_write)
{
int ret;
@@ -225,9 +225,9 @@ JNIEXPORT jint JNICALL Java_android_media_AudioTrack_native_1write(JNIEnv *env,
snd_pcm_sframes_t frames_written;
jbyte *buffer = _GET_BYTE_ARRAY_ELEMENTS(audioData);
jbyte *buffer = _GET_BYTE_ARRAY_ELEMENTS(audio_data);
ret = frames_written = snd_pcm_writei(pcm_handle, buffer, frames_to_write);
ret = frames_written = snd_pcm_writei(pcm_handle, buffer + offset_in_bytes, frames_to_write);
if (ret < 0) {
if (ret == -EPIPE) {
printf("XRUN.\n");
@@ -239,7 +239,7 @@ JNIEXPORT jint JNICALL Java_android_media_AudioTrack_native_1write(JNIEnv *env,
// printf("::::> tried to write %d frames, actually wrote %d frames.\n", frames_to_write, frames_written);
_RELEASE_BYTE_ARRAY_ELEMENTS(audioData, buffer);
_RELEASE_BYTE_ARRAY_ELEMENTS(audio_data, buffer);
return frames_written;
}
@@ -254,3 +254,12 @@ JNIEXPORT void JNICALL Java_android_media_AudioTrack_native_1release(JNIEnv *env
snd_pcm_t *pcm_handle = _PTR(_GET_LONG_FIELD(this, "pcm_handle"));
snd_pcm_close(pcm_handle);
}
JNIEXPORT jint JNICALL Java_android_media_AudioTrack_native_1getPlaybackHeadPosition(JNIEnv *env, jobject this)
{
snd_pcm_t *pcm_handle = _PTR(_GET_LONG_FIELD(this, "pcm_handle"));
snd_pcm_sframes_t delay;
snd_pcm_delay(pcm_handle, &delay);
return delay;
}

10
src/api-impl-jni/generated_headers/android_media_AudioTrack.h
View File

@@ -7,6 +7,8 @@
#ifdef __cplusplus
extern "C" {
#endif
#undef android_media_AudioTrack_ERROR_BAD_VALUE
#define android_media_AudioTrack_ERROR_BAD_VALUE -2L
#undef android_media_AudioTrack_PLAYSTATE_STOPPED
#define android_media_AudioTrack_PLAYSTATE_STOPPED 1L
#undef android_media_AudioTrack_PLAYSTATE_PAUSED
@@ -29,6 +31,14 @@ JNIEXPORT void JNICALL Java_android_media_AudioTrack_native_1constructor
JNIEXPORT jint JNICALL Java_android_media_AudioTrack_getMinBufferSize
(JNIEnv *, jclass, jint, jint, jint);
/*
* Class: android_media_AudioTrack
* Method: native_getPlaybackHeadPosition
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_android_media_AudioTrack_native_1getPlaybackHeadPosition
(JNIEnv *, jobject);
/*
* Class: android_media_AudioTrack
* Method: native_play