/**
* Applies replay gain and software volume to an audio buffer.
*/
int aout_volume_Amplify(aout_volume_t *vol, block_t *block)
{
if (unlikely(vol == NULL) || vol->module == NULL)
return -1;
float amp = vol->output_factor
* vlc_atomic_getf (&vol->gain_factor);
vol->object.amplify(&vol->object, block, amp);
return 0;
}
/*****************************************************************************
* 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;
}
