/**
* Trivially upmixes
*/
static block_t *Upmix( filter_t *p_filter, block_t *p_in_buf )
{
unsigned i_input_nb = aout_FormatNbChannels( &p_filter->fmt_in.audio );
unsigned i_output_nb = aout_FormatNbChannels( &p_filter->fmt_out.audio );
assert( i_input_nb < i_output_nb );
block_t *p_out_buf = block_Alloc(
p_in_buf->i_buffer * i_output_nb / i_input_nb );
if( unlikely(p_out_buf == NULL) )
{
block_Release( p_in_buf );
return NULL;
}
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
p_out_buf->i_dts = p_in_buf->i_dts;
p_out_buf->i_pts = p_in_buf->i_pts;
p_out_buf->i_length = p_in_buf->i_length;
float *p_dest = (float *)p_out_buf->p_buffer;
const float *p_src = (float *)p_in_buf->p_buffer;
for( size_t i = 0; i < p_in_buf->i_nb_samples; i++ )
{
for( unsigned j = 0; j < i_output_nb; j++ )
p_dest[j] = p_src[j % i_input_nb];
p_src += i_input_nb;
p_dest += i_output_nb;
}
block_Release( p_in_buf );
return p_out_buf;
}
/**
* Trivially downmixes (i.e. drop extra channels)
*/
static block_t *Downmix( filter_t *p_filter, block_t *p_buf )
{
unsigned i_input_nb = aout_FormatNbChannels( &p_filter->fmt_in.audio );
unsigned i_output_nb = aout_FormatNbChannels( &p_filter->fmt_out.audio );
assert( i_input_nb >= i_output_nb );
float *p_dest = (float *)p_buf->p_buffer;
const float *p_src = p_dest;
const int *channel_map = p_filter->p_sys->channel_map;
/* Use an extra buffer to avoid overlapping */
float buffer[i_output_nb];
for( size_t i = 0; i < p_buf->i_nb_samples; i++ )
{
for( unsigned j = 0; j < i_output_nb; j++ )
buffer[j] = channel_map[j] == -1 ? 0.f : p_src[channel_map[j]];
memcpy( p_dest, buffer, i_output_nb * sizeof(float) );
p_src += i_input_nb;
p_dest += i_output_nb;
}
p_buf->i_buffer = p_buf->i_buffer * i_output_nb / i_input_nb;
return p_buf;
}
/*****************************************************************************
* Filter:
*****************************************************************************/
static bool FilterInit( filter_t *p_filter, block_t *p_block, block_t **pp_out )
{
if( !p_block || !p_block->i_nb_samples )
{
if( p_block )
block_Release( p_block );
return false;
}
size_t i_out_size = p_block->i_nb_samples *
p_filter->fmt_out.audio.i_bitspersample *
p_filter->fmt_out.audio.i_channels / 8;
block_t *p_out = block_Alloc( i_out_size );
if( !p_out )
{
msg_Warn( p_filter, "can't get output buffer" );
block_Release( p_block );
return false;
}
p_out->i_nb_samples = p_block->i_nb_samples;
p_out->i_dts = p_block->i_dts;
p_out->i_pts = p_block->i_pts;
p_out->i_length = p_block->i_length;
int i_input_nb = aout_FormatNbChannels( &p_filter->fmt_in.audio );
int i_output_nb = aout_FormatNbChannels( &p_filter->fmt_out.audio );
p_out->i_buffer = p_block->i_buffer * i_output_nb / i_input_nb;
*pp_out = p_out;
return true;
}
/*****************************************************************************
* aout_FormatPrepare : compute the number of bytes per frame & frame length
*****************************************************************************/
void aout_FormatPrepare( audio_sample_format_t * p_format )
{
p_format->i_channels = aout_FormatNbChannels( p_format );
p_format->i_bitspersample = aout_BitsPerSample( p_format->i_format );
if( p_format->i_bitspersample > 0 )
{
p_format->i_bytes_per_frame = ( p_format->i_bitspersample / 8 )
* aout_FormatNbChannels( p_format );
p_format->i_frame_length = 1;
}
}
/*****************************************************************************
* Convert
*****************************************************************************/
static block_t *Convert( filter_t *p_filter, block_t *p_block )
{
block_t *p_out;
int i_out_size;
if( !p_block || !p_block->i_nb_samples )
{
if( p_block )
block_Release( p_block );
return NULL;
}
i_out_size = p_block->i_nb_samples * p_filter->p_sys->i_bitspersample/8 *
aout_FormatNbChannels( &(p_filter->fmt_out.audio) );
p_out = block_Alloc( i_out_size );
if( !p_out )
{
msg_Warn( p_filter, "can't get output buffer" );
block_Release( p_block );
return NULL;
}
p_out->i_nb_samples =
(p_block->i_nb_samples / p_filter->p_sys->i_nb_channels) *
aout_FormatNbChannels( &(p_filter->fmt_out.audio) );
#if 0
unsigned int i_in_size = in_buf.i_nb_samples * (p_filter->p_sys->i_bitspersample/8) *
aout_FormatNbChannels( &(p_filter->fmt_in.audio) );
if( (in_buf.i_buffer != i_in_size) && ((i_in_size % 32) != 0) ) /* is it word aligned?? */
{
msg_Err( p_filter, "input buffer is not word aligned" );
/* Fix output buffer to be word aligned */
}
#endif
memset( p_out->p_buffer, 0, i_out_size );
if( p_filter->p_sys->b_downmix )
{
stereo2mono_downmix( p_filter, p_block, p_out );
mono( p_filter, p_out, p_block );
}
else
{
stereo_to_mono( p_filter, p_out, p_block );
}
block_Release( p_block );
return p_out;
}
static int OpenResampler (vlc_object_t *obj)
{
filter_t *filter = (filter_t *)obj;
/* Only float->float */
if (filter->fmt_in.audio.i_format != VLC_CODEC_FL32
|| filter->fmt_out.audio.i_format != VLC_CODEC_FL32
/* No channels remapping */
|| filter->fmt_in.audio.i_physical_channels
!= filter->fmt_out.audio.i_physical_channels
|| filter->fmt_in.audio.i_original_channels
!= filter->fmt_out.audio.i_original_channels)
return VLC_EGENERIC;
int type = var_InheritInteger (obj, "src-converter-type");
int channels = aout_FormatNbChannels (&filter->fmt_in.audio);
int err;
SRC_STATE *s = src_new (type, channels, &err);
if (s == NULL)
{
msg_Err (obj, "cannot initialize resampler: %s", src_strerror (err));
return VLC_EGENERIC;
}
filter->p_sys = (filter_sys_t *)s;
filter->pf_audio_filter = Resample;
return VLC_SUCCESS;
}
static block_t *Extract( filter_t *p_filter, block_t *p_in_buf )
{
size_t i_out_channels = aout_FormatNbChannels( &p_filter->fmt_out.audio );
size_t i_out_size = p_in_buf->i_nb_samples
* p_filter->fmt_out.audio.i_bitspersample
* i_out_channels / 8;
block_t *p_out_buf = block_Alloc( i_out_size );
if( unlikely(p_out_buf == NULL) )
{
block_Release( p_in_buf );
return NULL;
}
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
p_out_buf->i_dts = p_in_buf->i_dts;
p_out_buf->i_pts = p_in_buf->i_pts;
p_out_buf->i_length = p_in_buf->i_length;
static const int pi_selections[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8,
};
static_assert(sizeof(pi_selections)/sizeof(int) == AOUT_CHAN_MAX,
"channel max size mismatch!");
aout_ChannelExtract( p_out_buf->p_buffer, i_out_channels,
p_in_buf->p_buffer, p_filter->fmt_in.audio.i_channels,
p_in_buf->i_nb_samples, pi_selections,
p_filter->fmt_out.audio.i_bitspersample );
return p_out_buf;
}
/*****************************************************************************
* DoWork: convert a buffer
*****************************************************************************/
static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
{
int i = p_in_buf->i_nb_samples * aout_FormatNbChannels( &p_filter->input );
/* We start from the end because b_in_place is true */
int16_t * p_in = (int16_t *)p_in_buf->p_buffer + i - 1;
float * p_out = (float *)p_out_buf->p_buffer + i - 1;
while( i-- )
{
#if 0
/* Slow version */
*p_out = (float)*p_in / 32768.0;
#else
/* This is walken's trick based on IEEE float format. On my PIII
* this takes 16 seconds to perform one billion conversions, instead
* of 19 seconds for the above division. */
union { float f; int32_t i; } u;
u.i = *p_in + 0x43c00000;
*p_out = u.f - 384.0;
#endif
p_in--; p_out--;
}
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes * 2;
}
/*****************************************************************************
* Open: open a scope effect plugin
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
aout_filter_t *p_filter = (aout_filter_t *)p_this;
aout_filter_sys_t *p_sys;
galaktos_thread_t *p_thread;
if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
|| p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
{
msg_Warn( p_filter, "bad input or output format" );
return VLC_EGENERIC;
}
if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
{
msg_Warn( p_filter, "input and output formats are not similar" );
return VLC_EGENERIC;
}
p_filter->pf_do_work = DoWork;
p_filter->b_in_place = 1;
/* Allocate structure */
p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
/* Create galaktos thread */
p_sys->p_thread = p_thread =
vlc_object_create( p_filter, sizeof( galaktos_thread_t ) );
vlc_object_attach( p_thread, p_this );
/*
var_Create( p_thread, "galaktos-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Get( p_thread, "galaktos-width", &width );
var_Create( p_thread, "galaktos-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Get( p_thread, "galaktos-height", &height );
*/
p_thread->i_cur_sample = 0;
bzero( p_thread->p_data, 2*2*512 );
p_thread->i_width = 600;
p_thread->i_height = 600;
p_thread->b_fullscreen = 0;
galaktos_init( p_thread );
p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
if( vlc_thread_create( p_thread, "galaktos update thread", Thread,
VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
{
msg_Err( p_filter, "cannot lauch galaktos thread" );
if( p_thread->psz_title ) free( p_thread->psz_title );
vlc_object_detach( p_thread );
vlc_object_destroy( p_thread );
free( p_sys );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
unsigned i_channels;
filter_sys_t *p_sys;
i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
p_sys = p_filter->p_sys = (filter_sys_t *)malloc( sizeof( *p_sys ) ); // sunqueen modify
if( !p_sys )
return VLC_ENOMEM;
p_sys->i_nb = var_CreateGetInteger( p_filter->p_parent, "norm-buff-size" );
p_sys->f_max = var_CreateGetFloat( p_filter->p_parent, "norm-max-level" );
if( p_sys->f_max <= 0 ) p_sys->f_max = 0.01;
/* We need to store (nb_buffers+1)*nb_channels floats */
p_sys->p_last = (float *)calloc( i_channels * (p_filter->p_sys->i_nb + 2), sizeof(float) ); // sunqueen modify
if( !p_sys->p_last )
{
free( p_sys );
return VLC_ENOMEM;
}
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
}
static int Open (vlc_object_t *obj)
{
aout_instance_t *aout = (aout_instance_t *)obj;
aout_sys_t *sys = malloc (sizeof (*sys));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
aout->output.p_sys = sys;
sys->opaque = var_InheritAddress (obj, "amem-data");
sys->play = var_InheritAddress (obj, "amem-play");
sys->set_volume = var_InheritAddress (obj, "amem-set-volume");
sys->cleanup = NULL; /* defer */
if (sys->play == NULL)
goto error;
vlc_audio_format_cb setup = var_InheritAddress (obj, "amem-setup");
char format[5] = "S16N";
unsigned rate, channels;
if (setup != NULL)
{
rate = aout->output.output.i_rate;
channels = aout_FormatNbChannels(&aout->output.output);
if (setup (&sys->opaque, format, &rate, &channels))
goto error;
/* Only call this callback if setup succeeded */
sys->cleanup = var_InheritAddress (obj, "amem-cleanup");
}
else
{
rate = var_InheritInteger (obj, "amem-rate");
channels = var_InheritInteger (obj, "amem-channels");
}
if (rate == 0 || rate > 192000
|| channels == 0 || channels > AOUT_CHAN_MAX)
goto error;
/* TODO: amem-format */
/* FIXME/TODO channel mapping */
if (strcmp(format, "S16N") || aout->output.output.i_channels != channels)
{
msg_Err (aout, "format not supported");
goto error;
}
aout->output.output.i_format = VLC_CODEC_S16N;
aout->output.output.i_rate = rate;
aout->output.pf_play = Play;
if (sys->set_volume != NULL)
aout->output.pf_volume_set = VolumeSet;
else
aout_VolumeSoftInit (aout);
return VLC_SUCCESS;
error:
Close (obj);
return VLC_EGENERIC;
}
static block_t *Convert( filter_t *p_filter, block_t *p_block )
{
if( !p_block || !p_block->i_nb_samples )
{
if( p_block )
block_Release( p_block );
return NULL;
}
size_t i_out_size = p_block->i_nb_samples *
p_filter->fmt_out.audio.i_bitspersample/8 *
aout_FormatNbChannels( &(p_filter->fmt_out.audio) );
block_t *p_out = filter_NewAudioBuffer( p_filter, i_out_size );
if( !p_out )
{
msg_Warn( p_filter, "can't get output buffer" );
block_Release( p_block );
return NULL;
}
p_out->i_nb_samples = p_block->i_nb_samples;
p_out->i_dts = p_block->i_dts;
p_out->i_pts = p_block->i_pts;
p_out->i_length = p_block->i_length;
DoWork( p_filter, p_block, p_out );
block_Release( p_block );
return p_out;
}
/*****************************************************************************
* DoWork: process samples buffer
*****************************************************************************
*
*****************************************************************************/
static block_t * DoWork( filter_t * p_filter, block_t * p_in_buf )
{
EqzFilter( p_filter, (float*)p_in_buf->p_buffer,
(float*)p_in_buf->p_buffer, p_in_buf->i_nb_samples,
aout_FormatNbChannels( &p_filter->fmt_in.audio ) );
return p_in_buf;
}
/*****************************************************************************
* DoWork: convert a buffer
*****************************************************************************/
static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
{
int32_t *p_in_orig, *p_in, *p_out = (int32_t*)p_out_buf->p_buffer;
unsigned int i_nb_channels = aout_FormatNbChannels( &p_filter->input );
unsigned int i_in_nb = p_in_buf->i_nb_samples;
unsigned int i_out_nb = i_in_nb * p_filter->output.i_rate
/ p_filter->input.i_rate;
unsigned int i_sample_bytes = i_nb_channels * sizeof(int32_t);
unsigned int i_out, i_chan, i_remainder = 0;
/* Check if we really need to run the resampler */
if( p_aout->mixer.mixer.i_rate == p_filter->input.i_rate )
{
return;
}
#ifdef HAVE_ALLOCA
p_in = (int32_t *)alloca( p_in_buf->i_nb_bytes );
#else
p_in_orig = p_in = (int32_t *)malloc( p_in_buf->i_nb_bytes );
#endif
if( p_in == NULL )
{
return;
}
p_aout->p_vlc->pf_memcpy( p_in, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
for( i_out = i_out_nb ; i_out-- ; )
{
for( i_chan = i_nb_channels ; i_chan ; )
{
i_chan--;
p_out[i_chan] = p_in[i_chan];
}
p_out += i_nb_channels;
i_remainder += p_filter->input.i_rate;
while( i_remainder >= p_filter->output.i_rate )
{
p_in += i_nb_channels;
i_remainder -= p_filter->output.i_rate;
}
}
p_out_buf->i_nb_samples = i_out_nb;
p_out_buf->i_nb_bytes = i_out_nb * i_sample_bytes;
p_out_buf->start_date = p_in_buf->start_date;
p_out_buf->end_date = p_out_buf->start_date + p_out_buf->i_nb_samples *
1000000 / p_filter->output.i_rate;
#ifndef HAVE_ALLOCA
free( p_in_orig );
#endif
}
/*****************************************************************************
* Create: allocate linear resampler
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
aout_filter_t * p_filter = (aout_filter_t *)p_this;
struct filter_sys_t * p_sys;
double d_factor;
int i_filter_wing;
if ( p_filter->input.i_rate == p_filter->output.i_rate
|| p_filter->input.i_format != p_filter->output.i_format
|| p_filter->input.i_physical_channels
!= p_filter->output.i_physical_channels
|| p_filter->input.i_original_channels
!= p_filter->output.i_original_channels
|| p_filter->input.i_format != VLC_CODEC_FL32 )
{
return VLC_EGENERIC;
}
#if !defined( __APPLE__ )
if( !config_GetInt( p_this, "hq-resampling" ) )
{
return VLC_EGENERIC;
}
#endif
/* Allocate the memory needed to store the module's structure */
p_sys = malloc( sizeof(filter_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
p_filter->p_sys = (struct aout_filter_sys_t *)p_sys;
/* Calculate worst case for the length of the filter wing */
d_factor = (double)p_filter->output.i_rate
/ p_filter->input.i_rate / AOUT_MAX_INPUT_RATE;
i_filter_wing = ((SMALL_FILTER_NMULT + 1)/2.0)
* __MAX(1.0, 1.0/d_factor) + 10;
p_sys->i_buf_size = aout_FormatNbChannels( &p_filter->input ) *
sizeof(int32_t) * 2 * i_filter_wing;
/* Allocate enough memory to buffer previous samples */
p_sys->p_buf = malloc( p_sys->i_buf_size );
if( p_sys->p_buf == NULL )
{
free( p_sys );
return VLC_ENOMEM;
}
p_sys->i_old_wing = 0;
p_sys->b_filter2 = false; /* It seams to be a good valuefor this module */
p_filter->pf_do_work = DoWork;
/* We don't want a new buffer to be created because we're not sure we'll
* actually need to resample anything. */
p_filter->b_in_place = true;
return VLC_SUCCESS;
}
/*****************************************************************************
* OpenAudio
*****************************************************************************/
int E_(OpenAudio) ( vlc_object_t * p_this )
{
aout_instance_t * p_aout = (aout_instance_t*) p_this;
p_aout->output.p_sys = (aout_sys_t*) malloc( sizeof( aout_sys_t ) );
if( p_aout->output.p_sys == NULL )
{
msg_Err( p_aout, "out of memory" );
return -1;
}
aout_sys_t * p_sys = p_aout->output.p_sys;
aout_VolumeSoftInit( p_aout );
int i_nb_channels = aout_FormatNbChannels( &p_aout->output.output );
/* BSoundPlayer does not support more than 2 channels AFAIK */
if( i_nb_channels > 2 )
{
i_nb_channels = 2;
p_aout->output.output.i_physical_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
}
media_raw_audio_format * p_format;
p_format = (media_raw_audio_format*)
malloc( sizeof( media_raw_audio_format ) );
p_format->channel_count = i_nb_channels;
p_format->frame_rate = p_aout->output.output.i_rate;
p_format->format = media_raw_audio_format::B_AUDIO_FLOAT;
#ifdef WORDS_BIGENDIAN
p_format->byte_order = B_MEDIA_BIG_ENDIAN;
#else
p_format->byte_order = B_MEDIA_LITTLE_ENDIAN;
#endif
p_format->buffer_size = 8192;
p_aout->output.output.i_format = VLC_FOURCC('f','l','3','2');
p_aout->output.i_nb_samples = 2048 / i_nb_channels;
p_aout->output.pf_play = DoNothing;
p_sys->p_player = new BSoundPlayer( p_format, "player", Play, NULL, p_aout );
if( p_sys->p_player->InitCheck() != B_OK )
{
msg_Err( p_aout, "BSoundPlayer InitCheck failed" );
delete p_sys->p_player;
free( p_sys );
return -1;
}
/* Start playing */
p_sys->latency = p_sys->p_player->Latency();
p_sys->p_player->Start();
p_sys->p_player->SetHasData( true );
return 0;
}
/*****************************************************************************
* DoWork: process samples buffer
*****************************************************************************
*
*****************************************************************************/
static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
{
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
EqzFilter( p_aout, p_filter, (float*)p_out_buf->p_buffer,
(float*)p_in_buf->p_buffer, p_in_buf->i_nb_samples,
aout_FormatNbChannels( &p_filter->input ) );
}
/*****************************************************************************
* DoWork: decode an MPEG audio frame.
*****************************************************************************/
static void DoWork( filter_t * p_filter,
block_t * p_in_buf, block_t * p_out_buf )
{
filter_sys_t *p_sys = p_filter->p_sys;
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
p_out_buf->i_buffer = p_in_buf->i_nb_samples * sizeof(vlc_fixed_t) *
aout_FormatNbChannels( &p_filter->fmt_out.audio );
/* Do the actual decoding now. */
mad_stream_buffer( &p_sys->mad_stream, p_in_buf->p_buffer,
p_in_buf->i_buffer );
if ( mad_frame_decode( &p_sys->mad_frame, &p_sys->mad_stream ) == -1 )
{
msg_Dbg( p_filter, "libmad error: %s",
mad_stream_errorstr( &p_sys->mad_stream ) );
p_sys->i_reject_count = 3;
}
else if( p_in_buf->i_flags & BLOCK_FLAG_DISCONTINUITY )
{
p_sys->i_reject_count = 3;
}
if( p_sys->i_reject_count > 0 )
{
memset( p_out_buf->p_buffer, 0, p_out_buf->i_buffer );
p_sys->i_reject_count--;
return;
}
mad_synth_frame( &p_sys->mad_synth, &p_sys->mad_frame );
struct mad_pcm * p_pcm = &p_sys->mad_synth.pcm;
unsigned int i_samples = p_pcm->length;
mad_fixed_t const * p_left = p_pcm->samples[0];
mad_fixed_t const * p_right = p_pcm->samples[1];
mad_fixed_t * p_samples = (mad_fixed_t *)p_out_buf->p_buffer;
assert( i_samples == p_out_buf->i_nb_samples );
/* Interleave and keep buffers in mad_fixed_t format */
if ( p_pcm->channels == 2 )
{
while ( i_samples-- )
{
*p_samples++ = *p_left++;
*p_samples++ = *p_right++;
}
}
else
{
assert( p_pcm->channels == 1 );
memcpy( p_samples, p_left, i_samples * sizeof(mad_fixed_t) );
}
}
/**
* Open the module
* @param p_this: the filter object
* @return VLC_SUCCESS or vlc error codes
*/
static int Open( vlc_object_t * p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
/* Test the audio format */
if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
{
msg_Warn( p_filter, "bad input or output format" );
return VLC_EGENERIC;
}
if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
{
msg_Warn( p_filter, "input and outut are not similar" );
return VLC_EGENERIC;
}
p_filter->pf_audio_filter = DoWork;
p_sys = p_filter->p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
if( !p_sys )
return VLC_ENOMEM;
/* Create the object for the thread */
vlc_sem_init( &p_sys->ready, 0 );
p_sys->b_error = false;
p_sys->b_quit = false;
p_sys->i_width = var_InheritInteger( p_filter, "projectm-width" );
p_sys->i_height = var_InheritInteger( p_filter, "projectm-height" );
p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
vlc_mutex_init( &p_sys->lock );
p_sys->p_buffer = NULL;
p_sys->i_buffer_size = 0;
p_sys->i_nb_samples = 0;
/* Create the thread */
if( vlc_clone( &p_sys->thread, Thread, p_filter, VLC_THREAD_PRIORITY_LOW ) )
goto error;
vlc_sem_wait( &p_sys->ready );
if( p_sys->b_error )
{
vlc_join( p_sys->thread, NULL );
goto error;
}
return VLC_SUCCESS;
error:
vlc_sem_destroy( &p_sys->ready );
free (p_sys );
return VLC_EGENERIC;
}
static block_t * DoWork( filter_t * p_filter, block_t * p_in_buf )
{
uint32_t nb_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
uint32_t nb_samples = p_in_buf->i_nb_samples;
if ( dspCallback != 0 )
{
dspCallback( ( float* )p_in_buf->p_buffer, nb_channels, nb_samples );
}
return p_in_buf;
}
/**
* Trivially downmixes (i.e. drop extra channels)
*/
static block_t *Downmix( filter_t *p_filter, block_t *p_buf )
{
unsigned i_input_nb = aout_FormatNbChannels( &p_filter->fmt_in.audio );
unsigned i_output_nb = aout_FormatNbChannels( &p_filter->fmt_out.audio );
assert( i_input_nb >= i_output_nb );
float *p_dest = (float *)p_buf->p_buffer;
const float *p_src = p_dest;
for( size_t i = 0; i < p_buf->i_nb_samples; i++ )
{
for( unsigned j = 0; j < i_output_nb; j++ )
p_dest[j] = p_src[j];
p_src += i_input_nb;
p_dest += i_output_nb;
}
return p_buf;
}
/**
* Open the module.
* @param p_this: the filter object
* @return VLC_SUCCESS or vlc error codes
*/
static int Open(vlc_object_t * p_this)
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
p_sys = p_filter->p_sys = (filter_sys_t*)malloc(sizeof(*p_sys));
if (p_sys == NULL)
return VLC_ENOMEM;
/* Create the object for the thread */
vlc_sem_init(&p_sys->ready, 0);
p_sys->b_error = false;
p_sys->i_width = var_InheritInteger(p_filter, "glspectrum-width");
p_sys->i_height = var_InheritInteger(p_filter, "glspectrum-height");
p_sys->i_channels = aout_FormatNbChannels(&p_filter->fmt_in.audio);
p_sys->i_prev_nb_samples = 0;
p_sys->p_prev_s16_buff = NULL;
p_sys->f_rotationAngle = 0;
p_sys->f_rotationIncrement = ROTATION_INCREMENT;
/* Fetch the FFT window parameters */
window_get_param( VLC_OBJECT( p_filter ), &p_sys->wind_param );
/* Create the FIFO for the audio data. */
p_sys->fifo = block_FifoNew();
if (p_sys->fifo == NULL)
goto error;
/* Create the thread */
if (vlc_clone(&p_sys->thread, Thread, p_filter,
VLC_THREAD_PRIORITY_VIDEO))
goto error;
/* Wait for the displaying thread to be ready. */
vlc_sem_wait(&p_sys->ready);
if (p_sys->b_error)
{
vlc_join(p_sys->thread, NULL);
goto error;
}
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
error:
vlc_sem_destroy(&p_sys->ready);
free(p_sys);
return VLC_EGENERIC;
}
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
aout_filter_t *p_filter = (aout_filter_t*)p_this;
bool b_fit = true;
int i_channels;
aout_filter_sys_t *p_sys;
if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
{
b_fit = false;
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio.i_format = VLC_CODEC_FL32;
msg_Warn( p_filter, "bad input or output format" );
}
if ( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
{
b_fit = false;
memcpy( &p_filter->fmt_out.audio, &p_filter->fmt_in.audio,
sizeof(audio_sample_format_t) );
msg_Warn( p_filter, "input and output formats are not similar" );
}
if ( ! b_fit )
{
return VLC_EGENERIC;
}
p_filter->pf_do_work = DoWork;
p_filter->b_in_place = true;
i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
p_sys->i_nb = var_CreateGetInteger( p_filter->p_parent, "norm-buff-size" );
p_sys->f_max = var_CreateGetFloat( p_filter->p_parent, "norm-max-level" );
if( p_sys->f_max <= 0 ) p_sys->f_max = 0.01;
/* We need to store (nb_buffers+1)*nb_channels floats */
p_sys->p_last = calloc( i_channels * (p_filter->p_sys->i_nb + 2), sizeof(float) );
if( !p_sys->p_last )
{
free( p_sys );
return VLC_ENOMEM;
}
return VLC_SUCCESS;
}
/**
* Open the module
* @param p_this: the filter object
* @return VLC_SUCCESS or vlc error codes
*/
static int Open( vlc_object_t * p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
/* Test the audio format */
if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 )
{
msg_Warn( p_filter, "bad input format" );
return VLC_EGENERIC;
}
p_sys = p_filter->p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
if( unlikely( !p_sys ) )
{
return VLC_ENOMEM;
}
/* Create the object for the thread */
vlc_sem_init( &p_sys->ready, 0 );
p_sys->b_error = false;
p_sys->b_quit = false;
p_sys->i_width = var_InheritInteger( p_filter, "vsxu-width" );
p_sys->i_height = var_InheritInteger( p_filter, "vsxu-height" );
p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
vlc_mutex_init( &p_sys->lock );
vlc_mutex_init( &p_sys->cyclic_block_mutex );
p_sys->vsxu_cyclic_buffer = new cyclic_block_queue();
/* Create the thread */
if( vlc_clone( &p_sys->thread, Thread, p_filter, VLC_THREAD_PRIORITY_LOW ) )
goto error;
vlc_sem_wait( &p_sys->ready );
if( p_sys->b_error )
{
vlc_join( p_sys->thread, NULL );
goto error;
}
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
error:
vlc_sem_destroy( &p_sys->ready );
free (p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* Filter:
*****************************************************************************/
static block_t *Filter( filter_t *p_filter, block_t *p_block )
{
void (*work)(filter_t *, block_t *, block_t *) = (void *)p_filter->p_sys;
if( !p_block || !p_block->i_nb_samples )
{
if( p_block )
block_Release( p_block );
return NULL;
}
size_t i_out_size = p_block->i_nb_samples *
p_filter->fmt_out.audio.i_bitspersample *
p_filter->fmt_out.audio.i_channels / 8;
block_t *p_out = block_Alloc( i_out_size );
if( !p_out )
{
msg_Warn( p_filter, "can't get output buffer" );
block_Release( p_block );
return NULL;
}
p_out->i_nb_samples = p_block->i_nb_samples;
p_out->i_dts = p_block->i_dts;
p_out->i_pts = p_block->i_pts;
p_out->i_length = p_block->i_length;
int i_input_nb = aout_FormatNbChannels( &p_filter->fmt_in.audio );
int i_output_nb = aout_FormatNbChannels( &p_filter->fmt_out.audio );
p_out->i_nb_samples = p_block->i_nb_samples;
p_out->i_buffer = p_block->i_buffer * i_output_nb / i_input_nb;
work( p_filter, p_block, p_out );
block_Release( p_block );
return p_out;
}
/*****************************************************************************
* Helpers:
*****************************************************************************/
static bool IsSupported( const audio_format_t *p_input, const audio_format_t *p_output )
{
if( p_input->i_format != VLC_CODEC_FL32 ||
p_input->i_format != p_output->i_format ||
p_input->i_rate != p_output->i_rate )
return false;
if( p_input->i_physical_channels == p_output->i_physical_channels &&
p_input->i_original_channels == p_output->i_original_channels )
{
return false;
}
/* Only conversion to Mono, Stereo and 4.0 right now */
if( p_output->i_physical_channels != AOUT_CHAN_CENTER &&
p_output->i_physical_channels != AOUT_CHANS_2_0 &&
p_output->i_physical_channels != AOUT_CHANS_4_0 )
{
return false;
}
/* Only from 7/7.1/5/5.1/3/3.1/2.0
* XXX 5.X rear and middle are handled the same way */
if( (p_input->i_physical_channels & ~AOUT_CHAN_LFE) != AOUT_CHANS_7_0 &&
(p_input->i_physical_channels & ~AOUT_CHAN_LFE) != AOUT_CHANS_5_0 &&
(p_input->i_physical_channels & ~AOUT_CHAN_LFE) != AOUT_CHANS_5_0_MIDDLE &&
(p_input->i_physical_channels & ~AOUT_CHAN_LFE) != AOUT_CHANS_3_0 &&
(p_input->i_physical_channels & ~AOUT_CHAN_LFE) != AOUT_CHANS_4_CENTER_REAR &&
p_input->i_physical_channels != AOUT_CHANS_2_0 )
{
return false;
}
/* Only if we downmix */
if( aout_FormatNbChannels( p_input ) <= aout_FormatNbChannels( p_output ) )
return false;
return true;
}
/*****************************************************************************
* Open: initialize as "audio filter"
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
/* Allocate structure */
filter_sys_t *p_sys = p_filter->p_sys = malloc( sizeof(*p_sys) );
if( ! p_sys )
return VLC_ENOMEM;
p_sys->scale = 1.0;
p_sys->sample_rate = p_filter->fmt_in.audio.i_rate;
p_sys->samples_per_frame = aout_FormatNbChannels( &p_filter->fmt_in.audio );
p_sys->bytes_per_sample = 4;
p_sys->bytes_per_frame = p_sys->samples_per_frame * p_sys->bytes_per_sample;
msg_Dbg( p_this, "format: %5i rate, %i nch, %i bps, %s",
p_sys->sample_rate,
p_sys->samples_per_frame,
p_sys->bytes_per_sample,
"fl32" );
p_sys->ms_stride = var_InheritInteger( p_this, "scaletempo-stride" );
p_sys->percent_overlap = var_InheritFloat( p_this, "scaletempo-overlap" );
p_sys->ms_search = var_InheritInteger( p_this, "scaletempo-search" );
msg_Dbg( p_this, "params: %i stride, %.3f overlap, %i search",
p_sys->ms_stride, p_sys->percent_overlap, p_sys->ms_search );
p_sys->buf_queue = NULL;
p_sys->buf_overlap = NULL;
p_sys->table_blend = NULL;
p_sys->buf_pre_corr = NULL;
p_sys->table_window = NULL;
p_sys->bytes_overlap = 0;
p_sys->bytes_queued = 0;
p_sys->bytes_to_slide = 0;
p_sys->frames_stride_error = 0;
if( reinit_buffers( p_filter ) != VLC_SUCCESS )
{
Close( p_this );
return VLC_EGENERIC;
}
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
aout_FormatPrepare(&p_filter->fmt_in.audio);
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
}
/**
* Open the module
* @param p_this: the filter object
* @return VLC_SUCCESS or vlc error codes
*/
static int Open( vlc_object_t * p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
p_sys = p_filter->p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
if( unlikely( !p_sys ) )
{
return VLC_ENOMEM;
}
/* Create the object for the thread */
p_sys->b_quit = false;
p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
vlc_mutex_init( &p_sys->lock );
vlc_mutex_init( &p_sys->cyclic_block_mutex );
p_sys->vsxu_cyclic_buffer = new cyclic_block_queue();
/* Create the openGL provider */
vout_window_cfg_t cfg;
memset( &cfg, 0, sizeof(cfg) );
cfg.width = var_InheritInteger( p_filter, "vsxu-width" );
cfg.height = var_InheritInteger( p_filter, "vsxu-height" );
p_sys->gl = vlc_gl_surface_Create( VLC_OBJECT(p_filter), &cfg, NULL );
if( p_sys->gl == NULL )
goto error;
/* Create the thread */
if( vlc_clone( &p_sys->thread, Thread, p_filter,
VLC_THREAD_PRIORITY_LOW ) )
{
vlc_gl_surface_Destroy( p_sys->gl );
goto error;
}
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
error:
vlc_mutex_destroy( &p_sys->cyclic_block_mutex );
vlc_mutex_destroy( &p_sys->lock );
free( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* DoWork: convert a buffer
*****************************************************************************/
static block_t *DoWork( filter_t * p_filter, block_t * p_in_buf )
{
/* Check if we really need to run the resampler */
if( p_filter->fmt_out.audio.i_rate == p_filter->fmt_in.audio.i_rate )
return p_in_buf;
block_t *p_out_buf = p_in_buf;
unsigned int i_out_nb = p_in_buf->i_nb_samples
* p_filter->fmt_out.audio.i_rate / p_filter->fmt_in.audio.i_rate;
const unsigned framesize = (p_filter->fmt_in.audio.i_bitspersample / 8)
* aout_FormatNbChannels( &p_filter->fmt_in.audio );
if( p_filter->fmt_out.audio.i_rate > p_filter->fmt_in.audio.i_rate )
{
p_out_buf = block_Alloc( i_out_nb * framesize );
if( !p_out_buf )
goto out;
}
unsigned char *p_out = p_out_buf->p_buffer;
unsigned char *p_in = p_in_buf->p_buffer;
unsigned int i_remainder = 0;
p_out_buf->i_nb_samples = i_out_nb;
p_out_buf->i_buffer = i_out_nb * framesize;
p_out_buf->i_pts = p_in_buf->i_pts;
p_out_buf->i_length = p_out_buf->i_nb_samples *
1000000 / p_filter->fmt_out.audio.i_rate;
while( i_out_nb )
{
if( p_out != p_in )
memcpy( p_out, p_in, framesize );
p_out += framesize;
i_out_nb--;
i_remainder += p_filter->fmt_in.audio.i_rate;
while( i_remainder >= p_filter->fmt_out.audio.i_rate )
{
p_in += framesize;
i_remainder -= p_filter->fmt_out.audio.i_rate;
}
}
if( p_in_buf != p_out_buf )
out:
block_Release( p_in_buf );
return p_out_buf;
}
/*****************************************************************************
* OpenFilter:
*****************************************************************************/
static int OpenFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
/* Activate this filter only with stereo devices */
if( p_filter->fmt_out.audio.i_physical_channels
!= (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
{
msg_Dbg( p_filter, "filter discarded (incompatible format)" );
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the module's structure */
p_sys = p_filter->p_sys = (filter_sys_t *)malloc( sizeof(struct filter_sys_t) ); // sunqueen modify
if( p_sys == NULL )
return VLC_ENOMEM;
p_sys->i_overflow_buffer_size = 0;
p_sys->p_overflow_buffer = NULL;
p_sys->i_nb_atomic_operations = 0;
p_sys->p_atomic_operations = NULL;
if( Init( VLC_OBJECT(p_filter), p_sys
, aout_FormatNbChannels ( &(p_filter->fmt_in.audio) )
, p_filter->fmt_in.audio.i_physical_channels
, p_filter->fmt_in.audio.i_rate ) < 0 )
{
free( p_sys );
return VLC_EGENERIC;
}
/* Request a specific format if not already compatible */
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio.i_rate = p_filter->fmt_in.audio.i_rate;
p_filter->fmt_in.audio.i_original_channels =
p_filter->fmt_out.audio.i_original_channels;
if( p_filter->fmt_in.audio.i_physical_channels == AOUT_CHANS_STEREO
&& (p_filter->fmt_in.audio.i_original_channels & AOUT_CHAN_DOLBYSTEREO)
&& !var_InheritBool( p_filter, "headphone-dolby" ) )
{
p_filter->fmt_in.audio.i_physical_channels = AOUT_CHANS_5_0;
}
p_filter->pf_audio_filter = Convert;
return VLC_SUCCESS;
}
