int libvlc_media_player_set_equalizer( libvlc_media_player_t *p_mi, libvlc_equalizer_t *p_equalizer )
{
char bands[EQZ_BANDS_MAX * EQZ_BAND_VALUE_SIZE + 1];
if( p_equalizer != NULL )
{
for( unsigned i = 0, c = 0; i < EQZ_BANDS_MAX; i++ )
{
c += snprintf( bands + c, sizeof(bands) - c, " %.07f",
p_equalizer->f_amp[i] );
if( unlikely(c >= sizeof(bands)) )
return -1;
}
var_SetFloat( p_mi, "equalizer-preamp", p_equalizer->f_preamp );
var_SetString( p_mi, "equalizer-bands", bands );
}
var_SetString( p_mi, "audio-filter", p_equalizer ? "equalizer" : "" );
audio_output_t *p_aout = input_resource_HoldAout( p_mi->input.p_resource );
if( p_aout != NULL )
{
if( p_equalizer != NULL )
{
var_SetFloat( p_aout, "equalizer-preamp", p_equalizer->f_preamp );
var_SetString( p_aout, "equalizer-bands", bands );
}
var_SetString( p_aout, "audio-filter", p_equalizer ? "equalizer" : "" );
vlc_object_release( p_aout );
}
return 0;
}
audio_output_t *playlist_GetAout(playlist_t *pl)
{
/* NOTE: it is assumed that the input resource exists. In practice,
* the playlist must have been activated. This is automatic when calling
* pl_Get(). FIXME: input resources are deleted at deactivation, this can
* be too early. */
playlist_private_t *sys = pl_priv(pl);
return input_resource_HoldAout(sys->p_input_resource);
}
/*
* Remember to release the returned audio_output_t since it is locked at
* the end of this function.
*/
static audio_output_t *GetAOut( libvlc_media_player_t *mp )
{
assert( mp != NULL );
audio_output_t *p_aout = input_resource_HoldAout( mp->input.p_resource );
if( p_aout == NULL )
libvlc_printerr( "No active audio output" );
return p_aout;
}