/*****************************************************************************
* aout_DecPlay : filter & mix the decoded buffer
*****************************************************************************/
int aout_DecPlay (audio_output_t *p_aout, block_t *p_buffer, int i_input_rate)
{
aout_owner_t *owner = aout_owner (p_aout);
aout_input_t *input;
assert( i_input_rate >= INPUT_RATE_DEFAULT / AOUT_MAX_INPUT_RATE &&
i_input_rate <= INPUT_RATE_DEFAULT * AOUT_MAX_INPUT_RATE );
assert( p_buffer->i_pts > 0 );
p_buffer->i_length = (mtime_t)p_buffer->i_nb_samples * 1000000
/ owner->input_format.i_rate;
aout_lock( p_aout );
aout_CheckRestart( p_aout );
input = owner->input;
if (unlikely(input == NULL)) /* can happen due to restart */
{
aout_unlock( p_aout );
aout_BufferFree( p_buffer );
return -1;
}
/* Input */
p_buffer = aout_InputPlay (p_aout, input, p_buffer, i_input_rate,
&owner->sync.date);
if( p_buffer != NULL )
{
date_Increment (&owner->sync.date, p_buffer->i_nb_samples);
/* Mixer */
if (owner->volume.mixer != NULL)
{
float amp = owner->volume.multiplier
* vlc_atomic_getf (&owner->gain.multiplier);
aout_MixerRun (owner->volume.mixer, p_buffer, amp);
}
/* Output */
aout_OutputPlay( p_aout, p_buffer );
}
aout_unlock( p_aout );
#ifdef __unix__
sched_yield();
#endif
return 0;
}
/*****************************************************************************
* aout_DecPlay : filter & mix the decoded buffer
*****************************************************************************/
int aout_DecPlay( aout_instance_t * p_aout, aout_input_t * p_input,
aout_buffer_t * p_buffer )
{
if ( p_buffer->start_date == 0 )
{
msg_Warn( p_aout, "non-dated buffer received" );
aout_BufferFree( p_buffer );
return -1;
}
/* Apply the desynchronisation requested by the user */
p_buffer->start_date += p_input->i_desync;
p_buffer->end_date += p_input->i_desync;
if ( p_buffer->start_date > mdate() + p_input->i_pts_delay +
AOUT_MAX_ADVANCE_TIME )
{
msg_Warn( p_aout, "received buffer in the future ("I64Fd")",
p_buffer->start_date - mdate());
aout_BufferFree( p_buffer );
return -1;
}
p_buffer->end_date = p_buffer->start_date
+ (mtime_t)(p_buffer->i_nb_samples * 1000000)
/ p_input->input.i_rate;
vlc_mutex_lock( &p_input->lock );
if ( p_input->b_error )
{
vlc_mutex_unlock( &p_input->lock );
aout_BufferFree( p_buffer );
return -1;
}
if ( p_input->b_changed )
{
/* Maybe the allocation size has changed. Re-allocate a buffer. */
aout_buffer_t * p_new_buffer;
mtime_t duration = (1000000 * (mtime_t)p_buffer->i_nb_samples)
/ p_input->input.i_rate;
aout_BufferAlloc( &p_input->input_alloc, duration, NULL, p_new_buffer );
p_aout->p_vlc->pf_memcpy( p_new_buffer->p_buffer, p_buffer->p_buffer,
p_buffer->i_nb_bytes );
p_new_buffer->i_nb_samples = p_buffer->i_nb_samples;
p_new_buffer->i_nb_bytes = p_buffer->i_nb_bytes;
p_new_buffer->start_date = p_buffer->start_date;
p_new_buffer->end_date = p_buffer->end_date;
aout_BufferFree( p_buffer );
p_buffer = p_new_buffer;
p_input->b_changed = 0;
}
/* If the buffer is too early, wait a while. */
mwait( p_buffer->start_date - AOUT_MAX_PREPARE_TIME );
if ( aout_InputPlay( p_aout, p_input, p_buffer ) == -1 )
{
vlc_mutex_unlock( &p_input->lock );
return -1;
}
vlc_mutex_unlock( &p_input->lock );
/* Run the mixer if it is able to run. */
vlc_mutex_lock( &p_aout->mixer_lock );
aout_MixerRun( p_aout );
vlc_mutex_unlock( &p_aout->mixer_lock );
return 0;
}
