/*****************************************************************************
* opensles_android.c : audio output for android native code
*****************************************************************************
- * Copyright © 2011 VideoLAN
+ * Copyright © 2011-2012 VideoLAN
*
* Authors: Dominique Martinet <asmadeus@codewreck.org>
* Hugo Beauzée-Luyssen <beauze.h@gmail.com>
+ * Rafaël Carré <funman@videolanorg>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
// Maximum number of buffers to enqueue.
#define BUFF_QUEUE 42
+#define Destroy(a) (*a)->Destroy(a);
+#define SetPlayState(a, b) (*a)->SetPlayState(a, b)
+#define RegisterCallback(a, b, c) (*a)->RegisterCallback(a, b, c)
+#define GetInterface(a, b, c) (*a)->GetInterface(a, b, c)
+#define Realize(a, b) (*a)->Realize(a, b)
+#define CreateOutputMix(a, b, c, d, e) (*a)->CreateOutputMix(a, b, c, d, e)
+#define CreateAudioPlayer(a, b, c, d, e, f, g) \
+ (*a)->CreateAudioPlayer(a, b, c, d, e, f, g)
+#define Enqueue(a, b, c) (*a)->Enqueue(a, b, c)
+#define Clear(a) (*a)->Clear(a)
+#define GetState(a, b) (*a)->GetState(a, b)
+
/*****************************************************************************
* aout_sys_t: audio output method descriptor
*****************************************************************************
SLObjectItf playerObject;
SLPlayItf playerPlay;
- aout_buffer_t *p_buffer_array[BUFF_QUEUE];
- int i_toclean_buffer;
- int i_toappend_buffer;
-
- SLInterfaceID *SL_IID_ENGINE;
- SLInterfaceID *SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
- SLInterfaceID *SL_IID_VOLUME;
- SLInterfaceID *SL_IID_PLAY;
+
+ vlc_mutex_t lock;
+ block_t *p_chain;
+ block_t **pp_last;
+ mtime_t length;
+
void *p_so_handle;
};
-typedef SLresult (*slCreateEngine_t)(
- SLObjectItf*, SLuint32, const SLEngineOption*, SLuint32,
- const SLInterfaceID*, const SLboolean* );
-
/*****************************************************************************
* Local prototypes.
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
-static void Play ( audio_output_t *, block_t * );
-static void PlayedCallback ( SLAndroidSimpleBufferQueueItf caller, void *pContext);
/*****************************************************************************
* Module descriptor
vlc_module_end ()
-#define CHECK_OPENSL_ERROR( res, msg ) \
- if( unlikely( res != SL_RESULT_SUCCESS ) ) \
- { \
- msg_Err( p_aout, msg" (%lu)", res ); \
- goto error; \
+static void Clean( aout_sys_t *p_sys )
+{
+ if( p_sys->playerObject )
+ Destroy( p_sys->playerObject );
+ if( p_sys->outputMixObject )
+ Destroy( p_sys->outputMixObject );
+ if( p_sys->engineObject )
+ Destroy( p_sys->engineObject );
+
+ if( p_sys->p_so_handle )
+ dlclose( p_sys->p_so_handle );
+
+ free( p_sys );
+}
+
+static void Flush(audio_output_t *p_aout, bool wait)
+{
+ (void)wait; /* FIXME */
+ aout_sys_t *p_sys = p_aout->sys;
+
+ vlc_mutex_lock( &p_sys->lock );
+ SetPlayState( p_sys->playerPlay, SL_PLAYSTATE_STOPPED );
+ Clear( p_sys->playerBufferQueue );
+ SetPlayState( p_sys->playerPlay, SL_PLAYSTATE_PLAYING );
+ block_ChainRelease( p_sys->p_chain );
+ p_sys->p_chain = NULL;
+ p_sys->pp_last = &p_sys->p_chain;
+ vlc_mutex_unlock( &p_sys->lock );
+}
+
+static void Pause(audio_output_t *p_aout, bool pause, mtime_t date)
+{
+ (void)date;
+ aout_sys_t *p_sys = p_aout->sys;
+ SetPlayState( p_sys->playerPlay,
+ pause ? SL_PLAYSTATE_PAUSED : SL_PLAYSTATE_PLAYING );
+}
+
+/*****************************************************************************
+ * Play: play a sound
+ *****************************************************************************/
+static void Play( audio_output_t *p_aout, block_t *p_buffer,
+ mtime_t *restrict drift )
+{
+ aout_sys_t *p_sys = p_aout->sys;
+ int tries = 5;
+ block_t **pp_last, *p_block;
+
+ SLAndroidSimpleBufferQueueState st;
+ SLresult res = GetState(p_sys->playerBufferQueue, &st);
+ if (unlikely(res != SL_RESULT_SUCCESS)) {
+ msg_Err(p_aout, "Could not query buffer queue state (%lu)", res);
+ st.count = 0;
}
-#define OPENSL_DLSYM( dest, handle, name ) \
- dest = (typeof(dest))dlsym( handle, name ); \
- if( dest == NULL ) \
- { \
- msg_Err( p_aout, "Failed to load symbol %s", name ); \
- goto error; \
+ if (!p_buffer->i_length) {
+ p_buffer->i_length = (mtime_t)(p_buffer->i_buffer / 2 / p_aout->format.i_channels) * CLOCK_FREQ / p_aout->format.i_rate;
}
-static void Clear( aout_sys_t *p_sys )
-{
- // Destroy buffer queue audio player object
- // and invalidate all associated interfaces
- (*p_sys->playerObject)->Destroy( p_sys->playerObject );
+ vlc_mutex_lock( &p_sys->lock );
- // destroy output mix object, and invalidate all associated interfaces
- (*p_sys->outputMixObject)->Destroy( p_sys->outputMixObject );
+ mtime_t delay = p_sys->length;
+ p_sys->length += p_buffer->i_length;
- // destroy engine object, and invalidate all associated interfaces
- (*p_sys->engineObject)->Destroy( p_sys->engineObject );
+ /* If something bad happens, we must remove this buffer from the FIFO */
+ pp_last = p_sys->pp_last;
+ p_block = *pp_last;
- dlclose( p_sys->p_so_handle );
+ block_ChainLastAppend( &p_sys->pp_last, p_buffer );
+ vlc_mutex_unlock( &p_sys->lock );
- free( p_sys );
+ if (delay && st.count)
+ *drift = mdate() + delay - p_buffer->i_pts;
+
+ for (;;)
+ {
+ SLresult result = Enqueue( p_sys->playerBufferQueue, p_buffer->p_buffer,
+ p_buffer->i_buffer );
+
+ switch (result)
+ {
+ case SL_RESULT_BUFFER_INSUFFICIENT:
+ msg_Err( p_aout, "buffer insufficient");
+
+ if (tries--)
+ {
+ // Wait a bit to retry.
+ // FIXME: buffer in aout_sys_t and retry at next Play() call
+ msleep(CLOCK_FREQ);
+ continue;
+ }
+
+ default:
+ msg_Warn( p_aout, "Error %lu, dropping buffer", result );
+ vlc_mutex_lock( &p_sys->lock );
+ p_sys->pp_last = pp_last;
+ *pp_last = p_block;
+ p_sys->length -= p_buffer->i_length;
+ vlc_mutex_unlock( &p_sys->lock );
+ block_Release( p_buffer );
+ case SL_RESULT_SUCCESS:
+ return;
+ }
+ }
}
+static void PlayedCallback (SLAndroidSimpleBufferQueueItf caller, void *pContext )
+{
+ (void)caller;
+ block_t *p_block;
+ audio_output_t *p_aout = pContext;
+ aout_sys_t *p_sys = p_aout->sys;
+
+ assert (caller == p_sys->playerBufferQueue);
+
+ vlc_mutex_lock( &p_sys->lock );
+
+ p_block = p_sys->p_chain;
+ assert( p_block );
+
+ p_sys->p_chain = p_sys->p_chain->p_next;
+ /* if we exhausted our fifo, we must reset the pointer to the last
+ * appended block */
+ if (!p_sys->p_chain)
+ p_sys->pp_last = &p_sys->p_chain;
+
+ p_sys->length -= p_block->i_length;
+
+ vlc_mutex_unlock( &p_sys->lock );
+
+ block_Release( p_block );
+}
/*****************************************************************************
- * Open: open a dummy audio device
+ * Open
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
goto error;
}
+ typedef SLresult (*slCreateEngine_t)(
+ SLObjectItf*, SLuint32, const SLEngineOption*, SLuint32,
+ const SLInterfaceID*, const SLboolean* );
slCreateEngine_t slCreateEnginePtr = NULL;
+ SLInterfaceID *SL_IID_ENGINE;
+ SLInterfaceID *SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
+ SLInterfaceID *SL_IID_VOLUME;
+ SLInterfaceID *SL_IID_PLAY;
+
+#define OPENSL_DLSYM( dest, handle, name ) \
+ dest = dlsym( handle, name ); \
+ if( dest == NULL ) \
+ { \
+ msg_Err( p_aout, "Failed to load symbol %s", name ); \
+ goto error; \
+ }
+
OPENSL_DLSYM( slCreateEnginePtr, p_sys->p_so_handle, "slCreateEngine" );
- OPENSL_DLSYM( p_sys->SL_IID_ANDROIDSIMPLEBUFFERQUEUE, p_sys->p_so_handle,
+ OPENSL_DLSYM( SL_IID_ANDROIDSIMPLEBUFFERQUEUE, p_sys->p_so_handle,
"SL_IID_ANDROIDSIMPLEBUFFERQUEUE" );
- OPENSL_DLSYM( p_sys->SL_IID_ENGINE, p_sys->p_so_handle, "SL_IID_ENGINE" );
- OPENSL_DLSYM( p_sys->SL_IID_PLAY, p_sys->p_so_handle, "SL_IID_PLAY" );
- OPENSL_DLSYM( p_sys->SL_IID_VOLUME, p_sys->p_so_handle, "SL_IID_VOLUME" );
+ OPENSL_DLSYM( SL_IID_ENGINE, p_sys->p_so_handle, "SL_IID_ENGINE" );
+ OPENSL_DLSYM( SL_IID_PLAY, p_sys->p_so_handle, "SL_IID_PLAY" );
+ OPENSL_DLSYM( SL_IID_VOLUME, p_sys->p_so_handle, "SL_IID_VOLUME" );
+
+
+#define CHECK_OPENSL_ERROR( msg ) \
+ if( unlikely( result != SL_RESULT_SUCCESS ) ) \
+ { \
+ msg_Err( p_aout, msg" (%lu)", result ); \
+ goto error; \
+ }
// create engine
result = slCreateEnginePtr( &p_sys->engineObject, 0, NULL, 0, NULL, NULL );
- CHECK_OPENSL_ERROR( result, "Failed to create engine" );
+ CHECK_OPENSL_ERROR( "Failed to create engine" );
// realize the engine in synchronous mode
- result = (*p_sys->engineObject)->Realize( p_sys->engineObject,
- SL_BOOLEAN_FALSE );
- CHECK_OPENSL_ERROR( result, "Failed to realize engine" );
+ result = Realize( p_sys->engineObject, SL_BOOLEAN_FALSE );
+ CHECK_OPENSL_ERROR( "Failed to realize engine" );
// get the engine interface, needed to create other objects
- result = (*p_sys->engineObject)->GetInterface( p_sys->engineObject,
- *p_sys->SL_IID_ENGINE, &engineEngine );
- CHECK_OPENSL_ERROR( result, "Failed to get the engine interface" );
+ result = GetInterface( p_sys->engineObject, *SL_IID_ENGINE, &engineEngine );
+ CHECK_OPENSL_ERROR( "Failed to get the engine interface" );
// create output mix, with environmental reverb specified as a non-required interface
- const SLInterfaceID ids1[] = { *p_sys->SL_IID_VOLUME };
+ const SLInterfaceID ids1[] = { *SL_IID_VOLUME };
const SLboolean req1[] = { SL_BOOLEAN_FALSE };
- result = (*engineEngine)->CreateOutputMix( engineEngine,
- &p_sys->outputMixObject, 1, ids1, req1 );
- CHECK_OPENSL_ERROR( result, "Failed to create output mix" );
+ result = CreateOutputMix( engineEngine, &p_sys->outputMixObject, 1, ids1, req1 );
+ CHECK_OPENSL_ERROR( "Failed to create output mix" );
// realize the output mix in synchronous mode
- result = (*p_sys->outputMixObject)->Realize( p_sys->outputMixObject,
- SL_BOOLEAN_FALSE );
- CHECK_OPENSL_ERROR( result, "Failed to realize output mix" );
+ result = Realize( p_sys->outputMixObject, SL_BOOLEAN_FALSE );
+ CHECK_OPENSL_ERROR( "Failed to realize output mix" );
// configure audio source - this defines the number of samples you can enqueue.
SLDataSink audioSnk = {&loc_outmix, NULL};
//create audio player
- const SLInterfaceID ids2[] = { *p_sys->SL_IID_ANDROIDSIMPLEBUFFERQUEUE };
- const SLboolean req2[] = { SL_BOOLEAN_TRUE };
- result = (*engineEngine)->CreateAudioPlayer( engineEngine,
- &p_sys->playerObject, &audioSrc,
+ const SLInterfaceID ids2[] = { *SL_IID_ANDROIDSIMPLEBUFFERQUEUE };
+ static const SLboolean req2[] = { SL_BOOLEAN_TRUE };
+ result = CreateAudioPlayer( engineEngine, &p_sys->playerObject, &audioSrc,
&audioSnk, sizeof( ids2 ) / sizeof( *ids2 ),
ids2, req2 );
- CHECK_OPENSL_ERROR( result, "Failed to create audio player" );
+ CHECK_OPENSL_ERROR( "Failed to create audio player" );
- // realize the player
- result = (*p_sys->playerObject)->Realize( p_sys->playerObject,
- SL_BOOLEAN_FALSE );
- CHECK_OPENSL_ERROR( result, "Failed to realize player object." );
+ result = Realize( p_sys->playerObject, SL_BOOLEAN_FALSE );
+ CHECK_OPENSL_ERROR( "Failed to realize player object." );
- // get the play interface
- result = (*p_sys->playerObject)->GetInterface( p_sys->playerObject,
- *p_sys->SL_IID_PLAY, &p_sys->playerPlay );
- CHECK_OPENSL_ERROR( result, "Failed to get player interface." );
+ result = GetInterface( p_sys->playerObject, *SL_IID_PLAY, &p_sys->playerPlay );
+ CHECK_OPENSL_ERROR( "Failed to get player interface." );
- // get the buffer queue interface
- result = (*p_sys->playerObject)->GetInterface( p_sys->playerObject,
- *p_sys->SL_IID_ANDROIDSIMPLEBUFFERQUEUE,
+ result = GetInterface( p_sys->playerObject, *SL_IID_ANDROIDSIMPLEBUFFERQUEUE,
&p_sys->playerBufferQueue );
- CHECK_OPENSL_ERROR( result, "Failed to get buff queue interface" );
+ CHECK_OPENSL_ERROR( "Failed to get buff queue interface" );
- result = (*p_sys->playerBufferQueue)->RegisterCallback( p_sys->playerBufferQueue,
- PlayedCallback,
- (void*)p_sys);
- CHECK_OPENSL_ERROR( result, "Failed to register buff queue callback." );
+ result = RegisterCallback( p_sys->playerBufferQueue, PlayedCallback,
+ (void*)p_aout);
+ CHECK_OPENSL_ERROR( "Failed to register buff queue callback." );
// set the player's state to playing
- result = (*p_sys->playerPlay)->SetPlayState( p_sys->playerPlay,
- SL_PLAYSTATE_PLAYING );
- CHECK_OPENSL_ERROR( result, "Failed to switch to playing state" );
+ result = SetPlayState( p_sys->playerPlay, SL_PLAYSTATE_PLAYING );
+ CHECK_OPENSL_ERROR( "Failed to switch to playing state" );
+
+ vlc_mutex_init( &p_sys->lock );
+ p_sys->p_chain = NULL;
+ p_sys->pp_last = &p_sys->p_chain;
// we want 16bit signed data little endian.
p_aout->format.i_format = VLC_CODEC_S16L;
p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
p_aout->pf_play = Play;
- p_aout->pf_pause = NULL;
- p_aout->pf_flush = NULL;
+ p_aout->pf_pause = Pause;
+ p_aout->pf_flush = Flush;
aout_FormatPrepare( &p_aout->format );
return VLC_SUCCESS;
error:
- Clear( p_sys );
+ Clean( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
- * Close: close our file
+ * Close
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
audio_output_t *p_aout = (audio_output_t*)p_this;
aout_sys_t *p_sys = p_aout->sys;
- (*p_sys->playerPlay)->SetPlayState( p_sys->playerPlay, SL_PLAYSTATE_STOPPED );
+ SetPlayState( p_sys->playerPlay, SL_PLAYSTATE_STOPPED );
//Flush remaining buffers if any.
- (*p_sys->playerBufferQueue)->Clear( p_sys->playerBufferQueue );
- Clear( p_sys );
-}
-
-/*****************************************************************************
- * Play: play a sound
- *****************************************************************************/
-static void Play( audio_output_t *p_aout, block_t *p_buffer )
-{
- aout_sys_t *p_sys = p_aout->sys;
- int tries = 5;
-
- for (;;)
- {
- SLresult result = (*p_sys->playerBufferQueue)->Enqueue(
- p_sys->playerBufferQueue, p_buffer->p_buffer,
- p_buffer->i_buffer );
-
- switch (result)
- {
- case SL_RESULT_SUCCESS:
- p_sys->p_buffer_array[p_sys->i_toappend_buffer] = p_buffer;
- if( ++p_sys->i_toappend_buffer == BUFF_QUEUE )
- p_sys->i_toappend_buffer = 0;
- return;
-
- case SL_RESULT_BUFFER_INSUFFICIENT:
- msg_Err( p_aout, "buffer insufficient");
-
- if (tries--)
- {
- // Wait a bit to retry.
- msleep(CLOCK_FREQ);
- continue;
- }
-
- default:
- msg_Warn( p_aout, "Error %lu, dropping buffer", result );
- aout_BufferFree( p_buffer );
- return;
- }
- }
-}
-
-static void PlayedCallback (SLAndroidSimpleBufferQueueItf caller, void *pContext )
-{
- aout_sys_t *p_sys = pContext;
-
- assert (caller == p_sys->playerBufferQueue);
-
- aout_BufferFree( p_sys->p_buffer_array[p_sys->i_toclean_buffer] );
- if( ++p_sys->i_toclean_buffer == BUFF_QUEUE )
- p_sys->i_toclean_buffer = 0;
+ Clear( p_sys->playerBufferQueue );
+ block_ChainRelease( p_sys->p_chain );
+ vlc_mutex_destroy( &p_sys->lock );
+ Clean( p_sys );
}
projects / vlc / blobdiff