/*****************************************************************************
* aout_InputNew : allocate a new input and rework the filter pipeline
*****************************************************************************/
int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input, const aout_request_vout_t *p_request_vout )
{
audio_sample_format_t chain_input_format;
audio_sample_format_t chain_output_format;
vlc_value_t val, text;
char *psz_filters, *psz_visual, *psz_scaletempo;
int i_visual;
aout_FormatPrint( p_aout, "input", &p_input->input );
p_input->i_nb_resamplers = p_input->i_nb_filters = 0;
/* Prepare FIFO. */
aout_FifoInit( p_aout, &p_input->mixer.fifo, p_aout->mixer_format.i_rate );
p_input->mixer.begin = NULL;
/* */
if( p_request_vout )
{
p_input->request_vout = *p_request_vout;
}
else
{
p_input->request_vout.pf_request_vout = RequestVout;
p_input->request_vout.p_private = p_aout;
}
/* Prepare format structure */
chain_input_format = p_input->input;
chain_output_format = p_aout->mixer_format;
chain_output_format.i_rate = p_input->input.i_rate;
aout_FormatPrepare( &chain_output_format );
/* Now add user filters */
if( var_Type( p_aout, "visual" ) == 0 )
{
var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
text.psz_string = _("Visualizations");
var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
val.psz_string = (char*)""; text.psz_string = _("Disable");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char*)"spectrometer"; text.psz_string = _("Spectrometer");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char*)"scope"; text.psz_string = _("Scope");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char*)"spectrum"; text.psz_string = _("Spectrum");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char*)"vuMeter"; text.psz_string = _("Vu meter");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
/* Look for goom plugin */
if( module_exists( "goom" ) )
{
val.psz_string = (char*)"goom"; text.psz_string = (char*)"Goom";
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
}
/* Look for libprojectM plugin */
if( module_exists( "projectm" ) )
{
val.psz_string = (char*)"projectm"; text.psz_string = (char*)"projectM";
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
}
if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
{
var_SetString( p_aout, "visual", val.psz_string );
free( val.psz_string );
}
var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
}
if( var_Type( p_aout, "equalizer" ) == 0 )
{
module_config_t *p_config;
int i;
p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
if( p_config && p_config->i_list )
{
var_Create( p_aout, "equalizer",
VLC_VAR_STRING | VLC_VAR_HASCHOICE );
text.psz_string = _("Equalizer");
var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
val.psz_string = (char*)""; text.psz_string = _("Disable");
var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
for( i = 0; i < p_config->i_list; i++ )
{
val.psz_string = (char *)p_config->ppsz_list[i];
text.psz_string = (char *)p_config->ppsz_list_text[i];
var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
&val, &text );
}
var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
}
}
if( var_Type( p_aout, "audio-filter" ) == 0 )
{
var_Create( p_aout, "audio-filter",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
text.psz_string = _("Audio filters");
var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
}
if( var_Type( p_aout, "audio-visual" ) == 0 )
{
var_Create( p_aout, "audio-visual",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
text.psz_string = _("Audio visualizations");
var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
}
if( var_Type( p_aout, "audio-replay-gain-mode" ) == 0 )
{
module_config_t *p_config;
int i;
p_config = config_FindConfig( VLC_OBJECT(p_aout), "audio-replay-gain-mode" );
if( p_config && p_config->i_list )
{
var_Create( p_aout, "audio-replay-gain-mode",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
text.psz_string = _("Replay gain");
var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_SETTEXT, &text, NULL );
for( i = 0; i < p_config->i_list; i++ )
{
val.psz_string = (char *)p_config->ppsz_list[i];
text.psz_string = (char *)p_config->ppsz_list_text[i];
var_Change( p_aout, "audio-replay-gain-mode", VLC_VAR_ADDCHOICE,
&val, &text );
}
var_AddCallback( p_aout, "audio-replay-gain-mode", ReplayGainCallback, NULL );
}
}
if( var_Type( p_aout, "audio-replay-gain-preamp" ) == 0 )
{
var_Create( p_aout, "audio-replay-gain-preamp",
VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
}
if( var_Type( p_aout, "audio-replay-gain-default" ) == 0 )
{
var_Create( p_aout, "audio-replay-gain-default",
VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
}
if( var_Type( p_aout, "audio-replay-gain-peak-protection" ) == 0 )
{
var_Create( p_aout, "audio-replay-gain-peak-protection",
VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
}
if( var_Type( p_aout, "audio-time-stretch" ) == 0 )
{
var_Create( p_aout, "audio-time-stretch",
VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
}
psz_filters = var_GetString( p_aout, "audio-filter" );
psz_visual = var_GetString( p_aout, "audio-visual");
psz_scaletempo = var_GetBool( p_aout, "audio-time-stretch" ) ? strdup( "scaletempo" ) : NULL;
p_input->b_recycle_vout = psz_visual && *psz_visual;
/* parse user filter lists */
char *const ppsz_array[] = { psz_scaletempo, psz_filters, psz_visual };
p_input->p_playback_rate_filter = NULL;
for( i_visual = 0; i_visual < 3 && !AOUT_FMT_NON_LINEAR(&chain_output_format); i_visual++ )
{
char *psz_next = NULL;
char *psz_parser = ppsz_array[i_visual];
if( psz_parser == NULL || !*psz_parser )
continue;
while( psz_parser && *psz_parser )
{
filter_t * p_filter = NULL;
if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
{
msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
break;
}
while( *psz_parser == ' ' && *psz_parser == ':' )
{
psz_parser++;
}
if( ( psz_next = strchr( psz_parser , ':' ) ) )
{
*psz_next++ = '\0';
}
if( *psz_parser =='\0' )
{
break;
}
/* Create a VLC object */
static const char typename[] = "audio filter";
p_filter = vlc_custom_create( p_aout, sizeof(*p_filter),
VLC_OBJECT_GENERIC, typename );
if( p_filter == NULL )
{
msg_Err( p_aout, "cannot add user filter %s (skipped)",
psz_parser );
psz_parser = psz_next;
continue;
}
vlc_object_attach( p_filter , p_aout );
p_filter->p_owner = malloc( sizeof(*p_filter->p_owner) );
p_filter->p_owner->p_aout = p_aout;
p_filter->p_owner->p_input = p_input;
/* request format */
memcpy( &p_filter->fmt_in.audio, &chain_output_format,
sizeof(audio_sample_format_t) );
p_filter->fmt_in.i_codec = chain_output_format.i_format;
memcpy( &p_filter->fmt_out.audio, &chain_output_format,
sizeof(audio_sample_format_t) );
p_filter->fmt_out.i_codec = chain_output_format.i_format;
p_filter->pf_audio_buffer_new = aout_FilterBufferNew;
/* try to find the requested filter */
if( i_visual == 2 ) /* this can only be a visualization module */
{
p_filter->p_module = module_need( p_filter, "visualization2",
psz_parser, true );
}
else /* this can be a audio filter module as well as a visualization module */
{
p_filter->p_module = module_need( p_filter, "audio filter",
psz_parser, true );
if ( p_filter->p_module == NULL )
{
/* if the filter requested a special format, retry */
if ( !( AOUT_FMTS_IDENTICAL( &p_filter->fmt_in.audio,
&chain_input_format )
&& AOUT_FMTS_IDENTICAL( &p_filter->fmt_out.audio,
&chain_output_format ) ) )
{
aout_FormatPrepare( &p_filter->fmt_in.audio );
aout_FormatPrepare( &p_filter->fmt_out.audio );
p_filter->p_module = module_need( p_filter,
"audio filter",
psz_parser, true );
}
/* try visual filters */
else
{
memcpy( &p_filter->fmt_in.audio, &chain_output_format,
sizeof(audio_sample_format_t) );
memcpy( &p_filter->fmt_out.audio, &chain_output_format,
sizeof(audio_sample_format_t) );
p_filter->p_module = module_need( p_filter,
"visualization2",
psz_parser, true );
}
}
}
/* failure */
if ( p_filter->p_module == NULL )
{
msg_Err( p_aout, "cannot add user filter %s (skipped)",
psz_parser );
free( p_filter->p_owner );
vlc_object_release( p_filter );
psz_parser = psz_next;
continue;
}
/* complete the filter chain if necessary */
if ( !AOUT_FMTS_IDENTICAL( &chain_input_format,
&p_filter->fmt_in.audio ) )
{
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
&p_input->i_nb_filters,
&chain_input_format,
&p_filter->fmt_in.audio ) < 0 )
{
msg_Err( p_aout, "cannot add user filter %s (skipped)",
psz_parser );
module_unneed( p_filter, p_filter->p_module );
free( p_filter->p_owner );
vlc_object_release( p_filter );
psz_parser = psz_next;
continue;
}
}
/* success */
p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
memcpy( &chain_input_format, &p_filter->fmt_out.audio,
sizeof( audio_sample_format_t ) );
if( i_visual == 0 ) /* scaletempo */
p_input->p_playback_rate_filter = p_filter;
/* next filter if any */
psz_parser = psz_next;
}
}
free( psz_visual );
free( psz_filters );
free( psz_scaletempo );
/* complete the filter chain if necessary */
if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
{
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
&p_input->i_nb_filters,
&chain_input_format,
&chain_output_format ) < 0 )
{
inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
return -1;
}
}
/* Prepare hints for the buffer allocator. */
p_input->input_alloc.b_alloc = true;
p_input->input_alloc.i_bytes_per_sec = -1;
/* Create resamplers. */
if ( !AOUT_FMT_NON_LINEAR( &p_aout->mixer_format ) )
{
chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
p_aout->mixer_format.i_rate)
* (100 + AOUT_MAX_RESAMPLING)) / 100;
if ( chain_output_format.i_rate == p_aout->mixer_format.i_rate )
{
/* Just in case... */
chain_output_format.i_rate++;
}
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
&p_input->i_nb_resamplers,
&chain_output_format,
&p_aout->mixer_format ) < 0 )
{
inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
return -1;
}
aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
p_input->i_nb_resamplers,
&p_input->input_alloc );
p_input->input_alloc.b_alloc = true;
/* Setup the initial rate of the resampler */
p_input->pp_resamplers[0]->fmt_in.audio.i_rate = p_input->input.i_rate;
}
p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
if( ! p_input->p_playback_rate_filter && p_input->i_nb_resamplers > 0 )
{
p_input->p_playback_rate_filter = p_input->pp_resamplers[0];
}
aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
p_input->i_nb_filters,
&p_input->input_alloc );
p_input->input_alloc.b_alloc = true;
/* i_bytes_per_sec is still == -1 if no filters */
p_input->input_alloc.i_bytes_per_sec = __MAX(
p_input->input_alloc.i_bytes_per_sec,
(int)(p_input->input.i_bytes_per_frame
* p_input->input.i_rate
/ p_input->input.i_frame_length) );
ReplayGainSelect( p_aout, p_input );
/* Success */
p_input->b_error = false;
p_input->i_last_input_rate = INPUT_RATE_DEFAULT;
return 0;
}
/*****************************************************************************
* aout_OutputNew : allocate a new output and rework the filter pipeline
*****************************************************************************
* This function is entered with the mixer lock.
*****************************************************************************/
int aout_OutputNew( audio_output_t *p_aout,
const audio_sample_format_t * p_format )
{
aout_owner_t *owner = aout_owner (p_aout);
aout_assert_locked( p_aout );
p_aout->format = *p_format;
aout_FormatPrepare( &p_aout->format );
/* Find the best output plug-in. */
owner->module = module_need (p_aout, "audio output", "$aout", false);
if (owner->module == NULL)
{
msg_Err( p_aout, "no suitable audio output module" );
return -1;
}
if ( var_Type( p_aout, "audio-channels" ) ==
(VLC_VAR_INTEGER | VLC_VAR_HASCHOICE) )
{
/* The user may have selected a different channels configuration. */
switch( var_InheritInteger( p_aout, "audio-channels" ) )
{
case AOUT_VAR_CHAN_RSTEREO:
p_aout->format.i_original_channels |= AOUT_CHAN_REVERSESTEREO;
break;
case AOUT_VAR_CHAN_STEREO:
p_aout->format.i_original_channels =
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
break;
case AOUT_VAR_CHAN_LEFT:
p_aout->format.i_original_channels = AOUT_CHAN_LEFT;
break;
case AOUT_VAR_CHAN_RIGHT:
p_aout->format.i_original_channels = AOUT_CHAN_RIGHT;
break;
case AOUT_VAR_CHAN_DOLBYS:
p_aout->format.i_original_channels =
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_DOLBYSTEREO;
break;
}
}
else if ( p_aout->format.i_physical_channels == AOUT_CHAN_CENTER
&& (p_aout->format.i_original_channels
& AOUT_CHAN_PHYSMASK) == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) )
{
vlc_value_t val, text;
/* Mono - create the audio-channels variable. */
var_Create( p_aout, "audio-channels",
VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
text.psz_string = _("Audio Channels");
var_Change( p_aout, "audio-channels", VLC_VAR_SETTEXT, &text, NULL );
val.i_int = AOUT_VAR_CHAN_STEREO; text.psz_string = _("Stereo");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_LEFT; text.psz_string = _("Left");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_RIGHT; text.psz_string = _("Right");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
if ( p_aout->format.i_original_channels & AOUT_CHAN_DUALMONO )
{
/* Go directly to the left channel. */
p_aout->format.i_original_channels = AOUT_CHAN_LEFT;
var_SetInteger( p_aout, "audio-channels", AOUT_VAR_CHAN_LEFT );
}
var_AddCallback( p_aout, "audio-channels", aout_ChannelsRestart,
NULL );
}
else if ( p_aout->format.i_physical_channels ==
(AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)
&& (p_aout->format.i_original_channels &
(AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)) )
{
vlc_value_t val, text;
/* Stereo - create the audio-channels variable. */
var_Create( p_aout, "audio-channels",
VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
text.psz_string = _("Audio Channels");
var_Change( p_aout, "audio-channels", VLC_VAR_SETTEXT, &text, NULL );
if ( p_aout->format.i_original_channels & AOUT_CHAN_DOLBYSTEREO )
{
val.i_int = AOUT_VAR_CHAN_DOLBYS;
text.psz_string = _("Dolby Surround");
}
else
{
val.i_int = AOUT_VAR_CHAN_STEREO;
text.psz_string = _("Stereo");
}
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_LEFT; text.psz_string = _("Left");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_RIGHT; text.psz_string = _("Right");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_RSTEREO; text.psz_string=_("Reverse stereo");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
if ( p_aout->format.i_original_channels & AOUT_CHAN_DUALMONO )
{
/* Go directly to the left channel. */
p_aout->format.i_original_channels = AOUT_CHAN_LEFT;
var_SetInteger( p_aout, "audio-channels", AOUT_VAR_CHAN_LEFT );
}
var_AddCallback( p_aout, "audio-channels", aout_ChannelsRestart,
NULL );
}
var_TriggerCallback( p_aout, "intf-change" );
aout_FormatPrepare( &p_aout->format );
aout_FormatPrint( p_aout, "output", &p_aout->format );
/* Choose the mixer format. */
owner->mixer_format = p_aout->format;
if (!AOUT_FMT_LINEAR(&p_aout->format))
owner->mixer_format.i_format = p_format->i_format;
else
/* Most audio filters can only deal with single-precision,
* so lets always use that when hardware supports floating point. */
if( HAVE_FPU )
owner->mixer_format.i_format = VLC_CODEC_FL32;
else
/* Otherwise, audio filters will not work. Use fixed-point if the input has
* more than 16-bits depth. */
if( p_format->i_bitspersample > 16 || !AOUT_FMT_LINEAR(p_format))
owner->mixer_format.i_format = VLC_CODEC_FI32;
else
/* Fallback to 16-bits. This avoids pointless conversion to and from
* 32-bits samples for the sole purpose of software mixing. */
owner->mixer_format.i_format = VLC_CODEC_S16N;
aout_FormatPrepare (&owner->mixer_format);
aout_FormatPrint (p_aout, "mixer", &owner->mixer_format);
/* Create filters. */
owner->nb_filters = 0;
if (aout_FiltersCreatePipeline (p_aout, owner->filters,
&owner->nb_filters, &owner->mixer_format,
&p_aout->format) < 0)
{
msg_Err( p_aout, "couldn't create audio output pipeline" );
module_unneed (p_aout, owner->module);
owner->module = NULL;
return -1;
}
return 0;
}
/*****************************************************************************
* aout_OutputNew : allocate a new output and rework the filter pipeline
*****************************************************************************
* This function is entered with the mixer lock.
*****************************************************************************/
int aout_OutputNew( aout_instance_t * p_aout,
audio_sample_format_t * p_format )
{
/* Retrieve user defaults. */
int i_rate = var_InheritInteger( p_aout, "aout-rate" );
vlc_value_t val, text;
/* kludge to avoid a fpu error when rate is 0... */
if( i_rate == 0 ) i_rate = -1;
memcpy( &p_aout->output.output, p_format, sizeof(audio_sample_format_t) );
if ( i_rate != -1 )
p_aout->output.output.i_rate = i_rate;
aout_FormatPrepare( &p_aout->output.output );
/* Find the best output plug-in. */
p_aout->output.p_module = module_need( p_aout, "audio output", "$aout", false );
if ( p_aout->output.p_module == NULL )
{
msg_Err( p_aout, "no suitable audio output module" );
return -1;
}
if ( var_Type( p_aout, "audio-channels" ) ==
(VLC_VAR_INTEGER | VLC_VAR_HASCHOICE) )
{
/* The user may have selected a different channels configuration. */
var_Get( p_aout, "audio-channels", &val );
if ( val.i_int == AOUT_VAR_CHAN_RSTEREO )
{
p_aout->output.output.i_original_channels |=
AOUT_CHAN_REVERSESTEREO;
}
else if ( val.i_int == AOUT_VAR_CHAN_STEREO )
{
p_aout->output.output.i_original_channels =
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
}
else if ( val.i_int == AOUT_VAR_CHAN_LEFT )
{
p_aout->output.output.i_original_channels = AOUT_CHAN_LEFT;
}
else if ( val.i_int == AOUT_VAR_CHAN_RIGHT )
{
p_aout->output.output.i_original_channels = AOUT_CHAN_RIGHT;
}
else if ( val.i_int == AOUT_VAR_CHAN_DOLBYS )
{
p_aout->output.output.i_original_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_DOLBYSTEREO;
}
}
else if ( p_aout->output.output.i_physical_channels == AOUT_CHAN_CENTER
&& (p_aout->output.output.i_original_channels
& AOUT_CHAN_PHYSMASK) == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) )
{
/* Mono - create the audio-channels variable. */
var_Create( p_aout, "audio-channels",
VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
text.psz_string = _("Audio Channels");
var_Change( p_aout, "audio-channels", VLC_VAR_SETTEXT, &text, NULL );
val.i_int = AOUT_VAR_CHAN_STEREO; text.psz_string = _("Stereo");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_LEFT; text.psz_string = _("Left");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_RIGHT; text.psz_string = _("Right");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
if ( p_aout->output.output.i_original_channels & AOUT_CHAN_DUALMONO )
{
/* Go directly to the left channel. */
p_aout->output.output.i_original_channels = AOUT_CHAN_LEFT;
var_SetInteger( p_aout, "audio-channels", AOUT_VAR_CHAN_LEFT );
}
var_AddCallback( p_aout, "audio-channels", aout_ChannelsRestart,
NULL );
}
else if ( p_aout->output.output.i_physical_channels ==
(AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)
&& (p_aout->output.output.i_original_channels &
(AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)) )
{
/* Stereo - create the audio-channels variable. */
var_Create( p_aout, "audio-channels",
VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
text.psz_string = _("Audio Channels");
var_Change( p_aout, "audio-channels", VLC_VAR_SETTEXT, &text, NULL );
if ( p_aout->output.output.i_original_channels & AOUT_CHAN_DOLBYSTEREO )
{
val.i_int = AOUT_VAR_CHAN_DOLBYS;
text.psz_string = _("Dolby Surround");
}
else
{
val.i_int = AOUT_VAR_CHAN_STEREO;
text.psz_string = _("Stereo");
}
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_LEFT; text.psz_string = _("Left");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_RIGHT; text.psz_string = _("Right");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
val.i_int = AOUT_VAR_CHAN_RSTEREO; text.psz_string=_("Reverse stereo");
var_Change( p_aout, "audio-channels", VLC_VAR_ADDCHOICE, &val, &text );
if ( p_aout->output.output.i_original_channels & AOUT_CHAN_DUALMONO )
{
/* Go directly to the left channel. */
p_aout->output.output.i_original_channels = AOUT_CHAN_LEFT;
var_SetInteger( p_aout, "audio-channels", AOUT_VAR_CHAN_LEFT );
}
var_AddCallback( p_aout, "audio-channels", aout_ChannelsRestart,
NULL );
}
var_SetBool( p_aout, "intf-change", true );
aout_FormatPrepare( &p_aout->output.output );
aout_lock_output_fifo( p_aout );
/* Prepare FIFO. */
aout_FifoInit( p_aout, &p_aout->output.fifo,
p_aout->output.output.i_rate );
aout_unlock_output_fifo( p_aout );
aout_FormatPrint( p_aout, "output", &p_aout->output.output );
/* Calculate the resulting mixer output format. */
p_aout->mixer_format = p_aout->output.output;
if ( !AOUT_FMT_NON_LINEAR(&p_aout->output.output) )
{
/* Non-S/PDIF mixer only deals with float32 or fixed32. */
p_aout->mixer_format.i_format
= HAVE_FPU ? VLC_CODEC_FL32 : VLC_CODEC_FI32;
aout_FormatPrepare( &p_aout->mixer_format );
}
else
{
p_aout->mixer_format.i_format = p_format->i_format;
}
aout_FormatPrint( p_aout, "mixer", &p_aout->mixer_format );
/* Create filters. */
p_aout->output.i_nb_filters = 0;
if ( aout_FiltersCreatePipeline( p_aout, p_aout->output.pp_filters,
&p_aout->output.i_nb_filters,
&p_aout->mixer_format,
&p_aout->output.output ) < 0 )
{
msg_Err( p_aout, "couldn't create audio output pipeline" );
module_unneed( p_aout, p_aout->output.p_module );
return -1;
}
/* Prepare hints for the buffer allocator. */
p_aout->mixer_allocation.b_alloc = true;
p_aout->mixer_allocation.i_bytes_per_sec
= p_aout->mixer_format.i_bytes_per_frame
* p_aout->mixer_format.i_rate
/ p_aout->mixer_format.i_frame_length;
aout_FiltersHintBuffers( p_aout, p_aout->output.pp_filters,
p_aout->output.i_nb_filters,
&p_aout->mixer_allocation );
p_aout->output.b_error = 0;
return 0;
}
/*****************************************************************************
* aout_InputNew : allocate a new input and rework the filter pipeline
*****************************************************************************/
int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
{
audio_sample_format_t chain_input_format;
audio_sample_format_t chain_output_format;
vlc_value_t val, text;
char * psz_filters, *psz_visual;
int i_visual;
aout_FormatPrint( p_aout, "input", &p_input->input );
p_input->i_nb_filters = 0;
/* Prepare FIFO. */
aout_FifoInit( p_aout, &p_input->fifo, p_aout->mixer.mixer.i_rate );
p_input->p_first_byte_to_mix = NULL;
/* Prepare format structure */
memcpy( &chain_input_format, &p_input->input,
sizeof(audio_sample_format_t) );
memcpy( &chain_output_format, &p_aout->mixer.mixer,
sizeof(audio_sample_format_t) );
chain_output_format.i_rate = p_input->input.i_rate;
aout_FormatPrepare( &chain_output_format );
/* Now add user filters */
if( var_Type( p_aout, "visual" ) == 0 )
{
module_t *p_module;
var_Create( p_aout, "visual", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
text.psz_string = _("Visualizations");
var_Change( p_aout, "visual", VLC_VAR_SETTEXT, &text, NULL );
val.psz_string = ""; text.psz_string = _("Disable");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = "spectrometer"; text.psz_string = _("Spectrometer");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = "scope"; text.psz_string = _("Scope");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = "spectrum"; text.psz_string = _("Spectrum");
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
/* Look for goom plugin */
p_module = config_FindModule( VLC_OBJECT(p_aout), "goom" );
if( p_module )
{
val.psz_string = "goom"; text.psz_string = "Goom";
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
}
/* Look for galaktos plugin */
p_module = config_FindModule( VLC_OBJECT(p_aout), "galaktos" );
if( p_module )
{
val.psz_string = "galaktos"; text.psz_string = "GaLaktos";
var_Change( p_aout, "visual", VLC_VAR_ADDCHOICE, &val, &text );
}
if( var_Get( p_aout, "effect-list", &val ) == VLC_SUCCESS )
{
var_Set( p_aout, "visual", val );
if( val.psz_string ) free( val.psz_string );
}
var_AddCallback( p_aout, "visual", VisualizationCallback, NULL );
}
if( var_Type( p_aout, "equalizer" ) == 0 )
{
module_config_t *p_config;
int i;
p_config = config_FindConfig( VLC_OBJECT(p_aout), "equalizer-preset" );
if( p_config && p_config->i_list )
{
var_Create( p_aout, "equalizer",
VLC_VAR_STRING | VLC_VAR_HASCHOICE );
text.psz_string = _("Equalizer");
var_Change( p_aout, "equalizer", VLC_VAR_SETTEXT, &text, NULL );
val.psz_string = ""; text.psz_string = _("Disable");
var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE, &val, &text );
for( i = 0; i < p_config->i_list; i++ )
{
val.psz_string = p_config->ppsz_list[i];
text.psz_string = p_config->ppsz_list_text[i];
var_Change( p_aout, "equalizer", VLC_VAR_ADDCHOICE,
&val, &text );
}
var_AddCallback( p_aout, "equalizer", EqualizerCallback, NULL );
}
}
if( var_Type( p_aout, "audio-filter" ) == 0 )
{
var_Create( p_aout, "audio-filter",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
text.psz_string = _("Audio filters");
var_Change( p_aout, "audio-filter", VLC_VAR_SETTEXT, &text, NULL );
}
if( var_Type( p_aout, "audio-visual" ) == 0 )
{
var_Create( p_aout, "audio-visual",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
text.psz_string = _("Audio visualizations");
var_Change( p_aout, "audio-visual", VLC_VAR_SETTEXT, &text, NULL );
}
var_Get( p_aout, "audio-filter", &val );
psz_filters = val.psz_string;
var_Get( p_aout, "audio-visual", &val );
psz_visual = val.psz_string;
/* parse user filter lists */
for( i_visual = 0; i_visual < 2; i_visual++ )
{
char *psz_next = NULL;
char *psz_parser = i_visual ? psz_visual : psz_filters;
if( psz_parser == NULL || !*psz_parser )
continue;
while( psz_parser && *psz_parser )
{
aout_filter_t * p_filter = NULL;
if( p_input->i_nb_filters >= AOUT_MAX_FILTERS )
{
msg_Dbg( p_aout, "max filters reached (%d)", AOUT_MAX_FILTERS );
break;
}
while( *psz_parser == ' ' && *psz_parser == ':' )
{
psz_parser++;
}
if( ( psz_next = strchr( psz_parser , ':' ) ) )
{
*psz_next++ = '\0';
}
if( *psz_parser =='\0' )
{
break;
}
/* Create a VLC object */
p_filter = vlc_object_create( p_aout, sizeof(aout_filter_t) );
if( p_filter == NULL )
{
msg_Err( p_aout, "cannot add user filter %s (skipped)",
psz_parser );
psz_parser = psz_next;
continue;
}
vlc_object_attach( p_filter , p_aout );
/* try to find the requested filter */
if( i_visual == 1 ) /* this can only be a visualization module */
{
/* request format */
memcpy( &p_filter->input, &chain_output_format,
sizeof(audio_sample_format_t) );
memcpy( &p_filter->output, &chain_output_format,
sizeof(audio_sample_format_t) );
p_filter->p_module = module_Need( p_filter, "visualization",
psz_parser, VLC_TRUE );
}
else /* this can be a audio filter module as well as a visualization module */
{
/* request format */
memcpy( &p_filter->input, &chain_input_format,
sizeof(audio_sample_format_t) );
memcpy( &p_filter->output, &chain_output_format,
sizeof(audio_sample_format_t) );
p_filter->p_module = module_Need( p_filter, "audio filter",
psz_parser, VLC_TRUE );
if ( p_filter->p_module == NULL )
{
/* if the filter requested a special format, retry */
if ( !( AOUT_FMTS_IDENTICAL( &p_filter->input,
&chain_input_format )
&& AOUT_FMTS_IDENTICAL( &p_filter->output,
&chain_output_format ) ) )
{
aout_FormatPrepare( &p_filter->input );
aout_FormatPrepare( &p_filter->output );
p_filter->p_module = module_Need( p_filter,
"audio filter",
psz_parser, VLC_TRUE );
}
/* try visual filters */
else
{
memcpy( &p_filter->input, &chain_output_format,
sizeof(audio_sample_format_t) );
memcpy( &p_filter->output, &chain_output_format,
sizeof(audio_sample_format_t) );
p_filter->p_module = module_Need( p_filter,
"visualization",
psz_parser, VLC_TRUE );
}
}
}
/* failure */
if ( p_filter->p_module == NULL )
{
msg_Err( p_aout, "cannot add user filter %s (skipped)",
psz_parser );
vlc_object_detach( p_filter );
vlc_object_destroy( p_filter );
psz_parser = psz_next;
continue;
}
/* complete the filter chain if necessary */
if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &p_filter->input ) )
{
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
&p_input->i_nb_filters,
&chain_input_format,
&p_filter->input ) < 0 )
{
msg_Err( p_aout, "cannot add user filter %s (skipped)",
psz_parser );
module_Unneed( p_filter, p_filter->p_module );
vlc_object_detach( p_filter );
vlc_object_destroy( p_filter );
psz_parser = psz_next;
continue;
}
}
/* success */
p_filter->b_continuity = VLC_FALSE;
p_input->pp_filters[p_input->i_nb_filters++] = p_filter;
memcpy( &chain_input_format, &p_filter->output,
sizeof( audio_sample_format_t ) );
/* next filter if any */
psz_parser = psz_next;
}
}
if( psz_filters ) free( psz_filters );
if( psz_visual ) free( psz_visual );
/* complete the filter chain if necessary */
if ( !AOUT_FMTS_IDENTICAL( &chain_input_format, &chain_output_format ) )
{
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
&p_input->i_nb_filters,
&chain_input_format,
&chain_output_format ) < 0 )
{
inputFailure( p_aout, p_input, "couldn't set an input pipeline" );
return -1;
}
}
/* Prepare hints for the buffer allocator. */
p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
p_input->input_alloc.i_bytes_per_sec = -1;
/* Create resamplers. */
if ( AOUT_FMT_NON_LINEAR( &p_aout->mixer.mixer ) )
{
p_input->i_nb_resamplers = 0;
}
else
{
chain_output_format.i_rate = (__MAX(p_input->input.i_rate,
p_aout->mixer.mixer.i_rate)
* (100 + AOUT_MAX_RESAMPLING)) / 100;
if ( chain_output_format.i_rate == p_aout->mixer.mixer.i_rate )
{
/* Just in case... */
chain_output_format.i_rate++;
}
p_input->i_nb_resamplers = 0;
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_resamplers,
&p_input->i_nb_resamplers,
&chain_output_format,
&p_aout->mixer.mixer ) < 0 )
{
inputFailure( p_aout, p_input, "couldn't set a resampler pipeline");
return -1;
}
aout_FiltersHintBuffers( p_aout, p_input->pp_resamplers,
p_input->i_nb_resamplers,
&p_input->input_alloc );
p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
/* Setup the initial rate of the resampler */
p_input->pp_resamplers[0]->input.i_rate = p_input->input.i_rate;
}
p_input->i_resampling_type = AOUT_RESAMPLING_NONE;
aout_FiltersHintBuffers( p_aout, p_input->pp_filters,
p_input->i_nb_filters,
&p_input->input_alloc );
p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
/* i_bytes_per_sec is still == -1 if no filters */
p_input->input_alloc.i_bytes_per_sec = __MAX(
p_input->input_alloc.i_bytes_per_sec,
(int)(p_input->input.i_bytes_per_frame
* p_input->input.i_rate
/ p_input->input.i_frame_length) );
/* Success */
p_input->b_error = VLC_FALSE;
p_input->b_restart = VLC_FALSE;
return 0;
}