mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-04 09:11:33 +02:00
More changes in the date handling. Should be more tolerant with
pause/play and change of audio channel.
This commit is contained in:
parent
9a1fd91901
commit
922ab4d4f4
@ -2,7 +2,7 @@
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* aout_internal.h : internal defines for audio output
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: aout_internal.h,v 1.6 2002/08/19 21:31:11 massiot Exp $
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* $Id: aout_internal.h,v 1.7 2002/08/19 23:12:57 massiot Exp $
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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@ -82,7 +82,6 @@ typedef struct aout_alloc_t
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*****************************************************************************/
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typedef struct aout_fifo_t
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{
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vlc_mutex_t lock;
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struct aout_buffer_t * p_first;
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struct aout_buffer_t ** pp_last;
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mtime_t end_date;
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@ -91,7 +90,6 @@ typedef struct aout_fifo_t
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static inline void aout_FifoInit( struct aout_instance_t * p_aout,
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aout_fifo_t * p_fifo )
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{
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vlc_mutex_init( (vlc_object_t *)p_aout, &p_fifo->lock );
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p_fifo->p_first = NULL;
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p_fifo->pp_last = &p_fifo->p_first;
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p_fifo->end_date = 0;
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@ -101,7 +99,6 @@ static inline void aout_FifoPush( struct aout_instance_t * p_aout,
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aout_fifo_t * p_fifo,
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aout_buffer_t * p_buffer )
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{
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vlc_mutex_lock( &p_fifo->lock );
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*p_fifo->pp_last = p_buffer;
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p_fifo->pp_last = &p_buffer->p_next;
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*p_fifo->pp_last = NULL;
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@ -118,26 +115,31 @@ static inline void aout_FifoPush( struct aout_instance_t * p_aout,
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{
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p_fifo->end_date = p_buffer->end_date;
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}
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vlc_mutex_unlock( &p_fifo->lock );
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}
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static inline mtime_t aout_FifoNextStart( struct aout_instance_t * p_aout,
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aout_fifo_t * p_fifo )
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{
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mtime_t end_date;
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vlc_mutex_lock( &p_fifo->lock );
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end_date = p_fifo->end_date;
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vlc_mutex_unlock( &p_fifo->lock );
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return end_date;
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return p_fifo->end_date;
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}
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/* Reinit the end_date (for instance after a pause). */
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static inline void aout_FifoSet( struct aout_instance_t * p_aout,
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aout_fifo_t * p_fifo, mtime_t date )
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{
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vlc_mutex_lock( &p_fifo->lock );
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aout_buffer_t * p_buffer;
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p_fifo->end_date = date;
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vlc_mutex_unlock( &p_fifo->lock );
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/* Remove all buffers. */
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p_buffer = p_fifo->p_first;
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while ( p_buffer != NULL )
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{
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aout_buffer_t * p_next = p_buffer->p_next;
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aout_BufferFree( p_buffer );
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p_buffer = p_next;
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}
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p_fifo->p_first = NULL;
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p_fifo->pp_last = &p_fifo->p_first;
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}
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/* This function supposes there is at least one buffer in p_fifo. */
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@ -145,14 +147,12 @@ static inline aout_buffer_t * aout_FifoPop( struct aout_instance_t * p_aout,
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aout_fifo_t * p_fifo )
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{
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aout_buffer_t * p_buffer;
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vlc_mutex_lock( &p_fifo->lock );
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p_buffer = p_fifo->p_first;
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p_fifo->p_first = p_buffer->p_next;
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if ( p_fifo->p_first == NULL )
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{
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p_fifo->pp_last = &p_fifo->p_first;
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}
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vlc_mutex_unlock( &p_fifo->lock );
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return p_buffer;
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}
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@ -162,7 +162,6 @@ static inline void aout_FifoDestroy( struct aout_instance_t * p_aout,
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{
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aout_buffer_t * p_buffer;
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vlc_mutex_destroy( &p_fifo->lock );
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p_buffer = p_fifo->p_first;
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while ( p_buffer != NULL )
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{
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@ -260,9 +259,7 @@ struct aout_instance_t
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int i_nb_inputs;
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/* Mixer */
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vlc_cond_t mixer_signal; /* the associated mutex is
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* p_aout->output.fifo.lock */
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vlc_bool_t b_mixer_active;
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vlc_mutex_t mixer_lock;
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aout_mixer_t mixer;
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/* Output plug-in */
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@ -2,7 +2,7 @@
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* file.c : audio output which writes the samples to a file
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: file.c,v 1.7 2002/08/19 23:07:30 sam Exp $
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* $Id: file.c,v 1.8 2002/08/19 23:12:57 massiot Exp $
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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@ -148,7 +148,12 @@ static int SetFormat( aout_instance_t * p_aout )
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*****************************************************************************/
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static void Play( aout_instance_t * p_aout )
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{
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aout_buffer_t * p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
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aout_buffer_t * p_buffer;
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/* We don't need the mixer lock, since Play is entered _with_ the
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* mixer lock. */
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p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
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if( fwrite( p_buffer->p_buffer, p_buffer->i_nb_bytes, 1,
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(FILE *)p_aout->output.p_sys ) != 1 )
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{
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@ -2,7 +2,7 @@
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* aout_dummy.c : dummy audio output plugin
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: aout.c,v 1.5 2002/08/19 21:31:11 massiot Exp $
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* $Id: aout.c,v 1.6 2002/08/19 23:12:57 massiot Exp $
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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@ -77,6 +77,8 @@ static int SetFormat( aout_instance_t * p_aout )
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*****************************************************************************/
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static void Play( aout_instance_t * p_aout )
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{
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/* We don't need the mixer lock, since Play is entered _with_ the
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* mixer lock. */
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aout_buffer_t * p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
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aout_BufferFree( p_buffer );
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}
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@ -2,7 +2,7 @@
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* audio_output.c : audio output instance
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: audio_output.c,v 1.97 2002/08/19 21:31:11 massiot Exp $
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* $Id: audio_output.c,v 1.98 2002/08/19 23:12:57 massiot Exp $
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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@ -57,8 +57,7 @@ aout_instance_t * __aout_NewInstance( vlc_object_t * p_parent )
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p_aout->b_change_requested = 0;
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p_aout->i_nb_inputs = 0;
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vlc_cond_init( p_parent, &p_aout->mixer_signal );
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p_aout->b_mixer_active = 0;
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vlc_mutex_init( p_parent, &p_aout->mixer_lock );
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vlc_object_attach( p_aout, p_parent->p_vlc );
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@ -72,7 +71,7 @@ void aout_DeleteInstance( aout_instance_t * p_aout )
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{
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vlc_mutex_destroy( &p_aout->input_lock );
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vlc_cond_destroy( &p_aout->input_signal );
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vlc_cond_destroy( &p_aout->mixer_signal );
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vlc_mutex_destroy( &p_aout->mixer_lock );
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/* Free structure. */
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vlc_object_destroy( p_aout );
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@ -2,7 +2,7 @@
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* input.c : internal management of input streams for the audio output
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: input.c,v 1.5 2002/08/19 21:31:11 massiot Exp $
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* $Id: input.c,v 1.6 2002/08/19 23:12:57 massiot Exp $
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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@ -42,13 +42,7 @@ static aout_input_t * InputNew( aout_instance_t * p_aout,
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if ( p_input == NULL ) return NULL;
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vlc_mutex_lock( &p_aout->output.fifo.lock );
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while ( p_aout->b_mixer_active )
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{
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vlc_cond_wait( &p_aout->mixer_signal, &p_aout->output.fifo.lock );
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}
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p_aout->b_mixer_active = 1;
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vlc_mutex_unlock( &p_aout->output.fifo.lock );
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vlc_mutex_lock( &p_aout->mixer_lock );
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if ( p_aout->i_nb_inputs == 0 )
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{
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@ -110,18 +104,12 @@ static aout_input_t * InputNew( aout_instance_t * p_aout,
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{
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aout_MixerNew( p_aout );
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}
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vlc_mutex_lock( &p_aout->output.fifo.lock );
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p_aout->b_mixer_active = 0;
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vlc_cond_signal( &p_aout->mixer_signal );
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vlc_mutex_unlock( &p_aout->output.fifo.lock );
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vlc_mutex_unlock( &p_aout->mixer_lock );
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return NULL;
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}
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vlc_mutex_lock( &p_aout->output.fifo.lock );
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p_aout->b_mixer_active = 0;
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vlc_cond_signal( &p_aout->mixer_signal );
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vlc_mutex_unlock( &p_aout->output.fifo.lock );
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vlc_mutex_unlock( &p_aout->mixer_lock );
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/* Prepare hints for the buffer allocator. */
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p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
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@ -177,15 +165,7 @@ void aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
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{
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int i_input;
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msg_Dbg( p_aout, "input 0x%x destroyed", p_input );
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vlc_mutex_lock( &p_aout->output.fifo.lock );
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while ( p_aout->b_mixer_active )
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{
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vlc_cond_wait( &p_aout->mixer_signal, &p_aout->output.fifo.lock );
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}
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p_aout->b_mixer_active = 1;
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vlc_mutex_unlock( &p_aout->output.fifo.lock );
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vlc_mutex_lock( &p_aout->mixer_lock );
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for ( i_input = 0; i_input < p_aout->i_nb_inputs; i_input++ )
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{
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@ -206,10 +186,7 @@ void aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
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(AOUT_MAX_INPUTS - i_input - 1) * sizeof(aout_input_t *) );
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p_aout->i_nb_inputs--;
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vlc_mutex_lock( &p_aout->output.fifo.lock );
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p_aout->b_mixer_active = 0;
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vlc_cond_signal( &p_aout->mixer_signal );
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vlc_mutex_unlock( &p_aout->output.fifo.lock );
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vlc_mutex_unlock( &p_aout->mixer_lock );
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aout_FiltersDestroyPipeline( p_aout, p_input->pp_filters,
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p_input->i_nb_filters );
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@ -222,6 +199,8 @@ void aout_InputDelete( aout_instance_t * p_aout, aout_input_t * p_input )
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aout_OutputDelete( p_aout );
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aout_MixerDelete( p_aout );
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}
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msg_Dbg( p_aout, "input 0x%x destroyed", p_input );
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}
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/*****************************************************************************
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@ -252,7 +231,9 @@ void aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
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* happen :). */
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msg_Warn( p_aout, "Computed PTS is out of range (%lld), clearing out",
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start_date );
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vlc_mutex_lock( &p_aout->mixer_lock );
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aout_FifoSet( p_aout, &p_input->fifo, 0 );
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vlc_mutex_unlock( &p_aout->mixer_lock );
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start_date = 0;
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}
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@ -314,7 +295,9 @@ void aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
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&new_output ) < 0 )
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{
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msg_Err( p_aout, "couldn't set an input pipeline for resampling" );
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vlc_mutex_lock( &p_aout->mixer_lock );
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aout_FifoSet( p_aout, &p_input->fifo, 0 );
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vlc_mutex_unlock( &p_aout->mixer_lock );
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aout_BufferFree( p_buffer );
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vlc_mutex_lock( &p_aout->input_lock );
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@ -347,7 +330,9 @@ void aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
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/* Adding the start date will be managed by aout_FifoPush(). */
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p_buffer->start_date = start_date;
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p_buffer->end_date = start_date + duration;
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vlc_mutex_lock( &p_aout->mixer_lock );
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aout_FifoPush( p_aout, &p_input->fifo, p_buffer );
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vlc_mutex_unlock( &p_aout->mixer_lock );
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vlc_mutex_lock( &p_aout->input_lock );
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p_aout->i_inputs_active--;
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@ -2,7 +2,7 @@
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* mixer.c : audio output mixing operations
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: mixer.c,v 1.7 2002/08/19 21:54:37 massiot Exp $
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* $Id: mixer.c,v 1.8 2002/08/19 23:12:57 massiot Exp $
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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@ -59,19 +59,17 @@ void aout_MixerDelete( aout_instance_t * p_aout )
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}
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/*****************************************************************************
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* aout_MixerRun: entry point for the mixer & post-filters processing
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* MixBuffer: try to prepare one output buffer
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*****************************************************************************/
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void aout_MixerRun( aout_instance_t * p_aout )
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static int MixBuffer( aout_instance_t * p_aout )
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{
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int i;
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aout_buffer_t * p_output_buffer;
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mtime_t start_date, end_date;
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/* Retrieve the date of the next buffer. We don't use aout_FifoNextStart
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* because we need to keep the lock on the FIFO, to prevent the aout
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* thread from triggering resampling while we are running. */
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vlc_mutex_lock( &p_aout->output.fifo.lock );
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start_date = p_aout->output.fifo.end_date;
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/* Retrieve the date of the next buffer. */
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vlc_mutex_lock( &p_aout->mixer_lock );
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start_date = aout_FifoNextStart( p_aout, &p_aout->output.fifo );
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if ( start_date != 0 && start_date < mdate() )
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{
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/* The output is _very_ late. This can only happen if the user
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@ -81,11 +79,42 @@ void aout_MixerRun( aout_instance_t * p_aout )
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start_date );
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start_date = p_aout->output.fifo.end_date = 0;
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}
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/* See if we have enough data to prepare a new buffer for the audio
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* output. First : start date. */
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if ( !start_date )
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{
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/* Find the latest start date available. */
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for ( i = 0; i < p_aout->i_nb_inputs; i++ )
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{
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aout_input_t * p_input = p_aout->pp_inputs[i];
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aout_fifo_t * p_fifo = &p_input->fifo;
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aout_buffer_t * p_buffer;
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p_buffer = p_fifo->p_first;
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if ( p_buffer == NULL )
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{
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break;
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}
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if ( !start_date || start_date < p_buffer->start_date )
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{
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start_date = p_buffer->start_date;
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}
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}
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if ( i < p_aout->i_nb_inputs )
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{
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/* Interrupted before the end... We can't run. */
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vlc_mutex_unlock( &p_aout->mixer_lock );
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return -1;
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}
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}
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end_date = start_date + (mtime_t)p_aout->output.i_nb_samples * 1000000
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/ p_aout->output.output.i_rate;
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/* See if we have enough data to prepare a new buffer for the audio
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* output. */
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/* Check that start_date and end_date are available for all input
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* streams. */
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for ( i = 0; i < p_aout->i_nb_inputs; i++ )
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{
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aout_input_t * p_input = p_aout->pp_inputs[i];
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@ -94,23 +123,12 @@ void aout_MixerRun( aout_instance_t * p_aout )
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mtime_t prev_date;
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vlc_bool_t b_drop_buffers;
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vlc_mutex_lock( &p_fifo->lock );
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p_buffer = p_fifo->p_first;
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if ( p_buffer == NULL )
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{
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vlc_mutex_unlock( &p_fifo->lock );
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break;
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}
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if ( !start_date )
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{
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start_date = p_buffer->start_date;
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end_date += p_buffer->start_date;
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p_input->p_first_byte_to_mix = p_buffer->p_buffer;
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}
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else
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{
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/* Check for the continuity of start_date */
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while ( p_buffer != NULL && p_buffer->end_date < start_date )
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{
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@ -124,7 +142,6 @@ void aout_MixerRun( aout_instance_t * p_aout )
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||||
if ( p_buffer == NULL )
|
||||
{
|
||||
p_fifo->pp_last = &p_fifo->p_first;
|
||||
vlc_mutex_unlock( &p_fifo->lock );
|
||||
break;
|
||||
}
|
||||
|
||||
@ -162,7 +179,6 @@ void aout_MixerRun( aout_instance_t * p_aout )
|
||||
+ i_nb_bytes;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Check that we have enough samples. */
|
||||
for ( ; ; )
|
||||
@ -180,7 +196,7 @@ void aout_MixerRun( aout_instance_t * p_aout )
|
||||
if ( prev_date != p_buffer->start_date )
|
||||
{
|
||||
msg_Warn( p_aout,
|
||||
"buffer discontinuity, dropping packets (%lld)",
|
||||
"buffer hole, dropping packets (%lld)",
|
||||
p_buffer->start_date - prev_date );
|
||||
b_drop_buffers = 1;
|
||||
break;
|
||||
@ -201,20 +217,16 @@ void aout_MixerRun( aout_instance_t * p_aout )
|
||||
}
|
||||
else break;
|
||||
}
|
||||
vlc_mutex_unlock( &p_fifo->lock );
|
||||
if ( p_buffer == NULL ) break;
|
||||
}
|
||||
|
||||
if ( i < p_aout->i_nb_inputs )
|
||||
{
|
||||
/* Interrupted before the end... We can't run. */
|
||||
vlc_mutex_unlock( &p_aout->output.fifo.lock );
|
||||
return;
|
||||
vlc_mutex_unlock( &p_aout->mixer_lock );
|
||||
return -1;
|
||||
}
|
||||
|
||||
p_aout->b_mixer_active = 1;
|
||||
vlc_mutex_unlock( &p_aout->output.fifo.lock );
|
||||
|
||||
/* Run the mixer. */
|
||||
aout_BufferAlloc( &p_aout->mixer.output_alloc,
|
||||
((u64)p_aout->output.i_nb_samples * 1000000)
|
||||
@ -226,22 +238,29 @@ void aout_MixerRun( aout_instance_t * p_aout )
|
||||
if ( p_output_buffer == NULL )
|
||||
{
|
||||
msg_Err( p_aout, "out of memory" );
|
||||
return;
|
||||
vlc_mutex_unlock( &p_aout->mixer_lock );
|
||||
return -1;
|
||||
}
|
||||
p_output_buffer->i_nb_samples = p_aout->output.i_nb_samples;
|
||||
p_output_buffer->i_nb_bytes = p_aout->output.i_nb_samples
|
||||
* p_aout->output.output.i_bytes_per_frame
|
||||
/ p_aout->output.output.i_frame_length;
|
||||
* p_aout->mixer.mixer.i_bytes_per_frame
|
||||
/ p_aout->mixer.mixer.i_frame_length;
|
||||
p_output_buffer->start_date = start_date;
|
||||
p_output_buffer->end_date = end_date;
|
||||
|
||||
p_aout->mixer.pf_do_work( p_aout, p_output_buffer );
|
||||
|
||||
vlc_mutex_unlock( &p_aout->mixer_lock );
|
||||
|
||||
aout_OutputPlay( p_aout, p_output_buffer );
|
||||
|
||||
vlc_mutex_lock( &p_aout->output.fifo.lock );
|
||||
p_aout->b_mixer_active = 0;
|
||||
vlc_cond_signal( &p_aout->mixer_signal );
|
||||
vlc_mutex_unlock( &p_aout->output.fifo.lock );
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* aout_MixerRun: entry point for the mixer & post-filters processing
|
||||
*****************************************************************************/
|
||||
void aout_MixerRun( aout_instance_t * p_aout )
|
||||
{
|
||||
while( MixBuffer( p_aout ) != -1 );
|
||||
}
|
||||
|
@ -2,7 +2,7 @@
|
||||
* output.c : internal management of output streams for the audio output
|
||||
*****************************************************************************
|
||||
* Copyright (C) 2002 VideoLAN
|
||||
* $Id: output.c,v 1.7 2002/08/19 21:31:11 massiot Exp $
|
||||
* $Id: output.c,v 1.8 2002/08/19 23:12:57 massiot Exp $
|
||||
*
|
||||
* Authors: Christophe Massiot <massiot@via.ecp.fr>
|
||||
*
|
||||
@ -43,9 +43,7 @@ int aout_OutputNew( aout_instance_t * p_aout,
|
||||
int i_channels = config_GetInt( p_aout, "aout-channels" );
|
||||
|
||||
/* Prepare FIFO. */
|
||||
vlc_mutex_init( p_aout, &p_aout->output.fifo.lock );
|
||||
p_aout->output.fifo.p_first = NULL;
|
||||
p_aout->output.fifo.pp_last = &p_aout->output.fifo.p_first;
|
||||
aout_FifoInit( p_aout, &p_aout->output.fifo );
|
||||
|
||||
p_aout->output.p_module = module_Need( p_aout, "audio output",
|
||||
psz_name );
|
||||
@ -151,6 +149,7 @@ void aout_OutputPlay( aout_instance_t * p_aout, aout_buffer_t * p_buffer )
|
||||
p_aout->output.i_nb_filters,
|
||||
&p_buffer );
|
||||
|
||||
/* Please remember that we have the mixer_lock in this function. */
|
||||
aout_FifoPush( p_aout, &p_aout->output.fifo, p_buffer );
|
||||
|
||||
p_aout->output.pf_play( p_aout );
|
||||
@ -169,7 +168,7 @@ aout_buffer_t * aout_OutputNextBuffer( aout_instance_t * p_aout,
|
||||
{
|
||||
aout_buffer_t * p_buffer;
|
||||
|
||||
vlc_mutex_lock( &p_aout->output.fifo.lock );
|
||||
vlc_mutex_lock( &p_aout->mixer_lock );
|
||||
p_buffer = p_aout->output.fifo.p_first;
|
||||
|
||||
while ( p_buffer != NULL && p_buffer->end_date < start_date )
|
||||
@ -183,7 +182,9 @@ aout_buffer_t * aout_OutputNextBuffer( aout_instance_t * p_aout,
|
||||
if ( p_buffer == NULL )
|
||||
{
|
||||
p_aout->output.fifo.pp_last = &p_aout->output.fifo.p_first;
|
||||
vlc_mutex_unlock( &p_aout->output.fifo.lock );
|
||||
/* Set date to 0, to allow the mixer to send a new buffer ASAP */
|
||||
p_aout->output.fifo.end_date = 0;
|
||||
vlc_mutex_unlock( &p_aout->mixer_lock );
|
||||
msg_Dbg( p_aout, "audio output is starving" );
|
||||
return NULL;
|
||||
}
|
||||
@ -193,7 +194,7 @@ aout_buffer_t * aout_OutputNextBuffer( aout_instance_t * p_aout,
|
||||
if ( p_buffer->start_date > start_date
|
||||
+ (p_buffer->end_date - p_buffer->start_date) )
|
||||
{
|
||||
vlc_mutex_unlock( &p_aout->output.fifo.lock );
|
||||
vlc_mutex_unlock( &p_aout->mixer_lock );
|
||||
msg_Dbg( p_aout, "audio output is starving (%lld)",
|
||||
p_buffer->start_date - start_date );
|
||||
return NULL;
|
||||
@ -222,6 +223,6 @@ aout_buffer_t * aout_OutputNextBuffer( aout_instance_t * p_aout,
|
||||
p_aout->output.fifo.pp_last = &p_aout->output.fifo.p_first;
|
||||
}
|
||||
|
||||
vlc_mutex_unlock( &p_aout->output.fifo.lock );
|
||||
vlc_mutex_unlock( &p_aout->mixer_lock );
|
||||
return p_buffer;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user