#endif
#include <math.h> /* sqrt */
-
-#ifdef HAVE_STDINT_H
-# include <stdint.h> /* int16_t .. */
-#elif defined(HAVE_INTTYPES_H)
-# include <inttypes.h> /* int16_t .. */
-#endif
+#include <stdint.h> /* int16_t .. */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#include <vlc_common.h>
#include <vlc_plugin.h>
-#include <vlc_es.h>
#include <vlc_block.h>
#include <vlc_filter.h>
#include <vlc_aout.h>
#define MONO_DOWNMIX_TEXT N_("Use downmix algorithm")
#define MONO_DOWNMIX_LONGTEXT N_("This option selects a stereo to mono " \
- "downmix algorithm that is used in the headphone channel mixer. It" \
+ "downmix algorithm that is used in the headphone channel mixer. It " \
"gives the effect of standing in a room full of speakers." )
#define MONO_CHANNEL_TEXT N_("Select channel to keep")
/*****************************************************************************
* Module descriptor
*****************************************************************************/
-vlc_module_begin();
- set_description( N_("Audio filter for stereo to mono conversion") );
- set_capability( "audio filter2", 0 );
-
- add_bool( MONO_CFG "downmix", false, NULL, MONO_DOWNMIX_TEXT,
- MONO_DOWNMIX_LONGTEXT, false );
+vlc_module_begin ()
+ set_description( N_("Audio filter for stereo to mono conversion") )
+ set_capability( "audio filter2", 2 )
+ set_category( CAT_AUDIO )
+ set_subcategory( SUBCAT_AUDIO_MISC )
+ set_callbacks( OpenFilter, CloseFilter )
+ set_shortname( "Mono" )
+
+ add_bool( MONO_CFG "downmix", true, NULL, MONO_DOWNMIX_TEXT,
+ MONO_DOWNMIX_LONGTEXT, false )
add_integer( MONO_CFG "channel", -1, NULL, MONO_CHANNEL_TEXT,
- MONO_CHANNEL_LONGTEXT, false );
- change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
+ MONO_CHANNEL_LONGTEXT, false )
+ change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
- set_category( CAT_AUDIO );
- set_subcategory( SUBCAT_AUDIO_MISC );
- set_callbacks( OpenFilter, CloseFilter );
- set_shortname( "Mono" );
-vlc_module_end();
+vlc_module_end ()
/* Init() and ComputeChannelOperations() -
* Code taken from modules/audio_filter/channel_mixer/headphone.c
int i_source_channel_offset;
unsigned int i;
- if( p_data == NULL )
- {
- msg_Dbg( p_this, "passing a null pointer as argument" );
- return 0;
- }
-
if( config_GetInt( p_this, "headphone-compensate" ) )
{
/* minimal distance to any speaker */
}
}
p_data->p_overflow_buffer = malloc( p_data->i_overflow_buffer_size );
- if( p_data->p_atomic_operations == NULL )
+ if( p_data->p_overflow_buffer == NULL )
+ {
+ free( p_data->p_atomic_operations );
return -1;
+ }
memset( p_data->p_overflow_buffer, 0, p_data->i_overflow_buffer_size );
/* end */
if( aout_FormatNbChannels( &(p_filter->fmt_in.audio) ) == 1 )
{
- msg_Dbg( p_filter, "filter discarded (incompatible format)" );
+ /*msg_Dbg( p_filter, "filter discarded (incompatible format)" );*/
return VLC_EGENERIC;
}
- if( (p_filter->fmt_in.i_codec != AOUT_FMT_S16_NE) ||
- (p_filter->fmt_out.i_codec != AOUT_FMT_S16_NE) )
+ if( (p_filter->fmt_in.i_codec != VLC_CODEC_S16N) ||
+ (p_filter->fmt_out.i_codec != VLC_CODEC_S16N) )
{
- msg_Err( p_this, "filter discarded (invalid format)" );
- return -1;
+ /*msg_Err( p_this, "filter discarded (invalid format)" );*/
+ return VLC_EGENERIC;
}
if( (p_filter->fmt_in.audio.i_format != p_filter->fmt_out.audio.i_format) &&
(p_filter->fmt_in.audio.i_rate != p_filter->fmt_out.audio.i_rate) &&
- (p_filter->fmt_in.audio.i_format != AOUT_FMT_S16_NE) &&
- (p_filter->fmt_out.audio.i_format != AOUT_FMT_S16_NE) &&
+ (p_filter->fmt_in.audio.i_format != VLC_CODEC_S16N) &&
+ (p_filter->fmt_out.audio.i_format != VLC_CODEC_S16N) &&
(p_filter->fmt_in.audio.i_bitspersample !=
p_filter->fmt_out.audio.i_bitspersample))
{
- msg_Err( p_this, "couldn't load mono filter" );
+ /*msg_Err( p_this, "couldn't load mono filter" );*/
return VLC_EGENERIC;
}
if( p_sys == NULL )
return VLC_EGENERIC;
- var_Create( p_this, MONO_CFG "downmix",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- p_sys->b_downmix = var_GetBool( p_this, MONO_CFG "downmix" );
-
- var_Create( p_this, MONO_CFG "channel",
- VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ p_sys->b_downmix = var_CreateGetBool( p_this, MONO_CFG "downmix" );
p_sys->i_channel_selected =
- (unsigned int) var_GetInteger( p_this, MONO_CFG "channel" );
+ (unsigned int) var_CreateGetInteger( p_this, MONO_CFG "channel" );
if( p_sys->b_downmix )
{
p_filter->fmt_in.audio.i_physical_channels,
p_filter->fmt_in.audio.i_rate ) < 0 )
{
+ var_Destroy( p_this, MONO_CFG "channel" );
+ var_Destroy( p_this, MONO_CFG "downmix" );
+ free( p_sys );
return VLC_EGENERIC;
}
var_Destroy( p_this, MONO_CFG "channel" );
var_Destroy( p_this, MONO_CFG "downmix" );
+ free( p_sys->p_atomic_operations );
+ free( p_sys->p_overflow_buffer );
free( p_sys );
}
if( !p_block || !p_block->i_samples )
{
if( p_block )
- p_block->pf_release( p_block );
+ block_Release( p_block );
return NULL;
}
if( !p_out )
{
msg_Warn( p_filter, "can't get output buffer" );
- p_block->pf_release( p_block );
+ block_Release( p_block );
return NULL;
}
p_out->i_samples = (p_block->i_samples / p_filter->p_sys->i_nb_channels) *
p_out->i_buffer = out_buf.i_nb_bytes;
p_out->i_samples = out_buf.i_nb_samples;
- p_block->pf_release( p_block );
+ block_Release( p_block );
return p_out;
}
p_out = p_out_buf->p_buffer;
i_out_size = p_out_buf->i_nb_bytes;
- if( p_sys != NULL )
- {
- /* Slide the overflow buffer */
- p_overflow = p_sys->p_overflow_buffer;
- i_overflow_size = p_sys->i_overflow_buffer_size;
+ /* Slide the overflow buffer */
+ p_overflow = p_sys->p_overflow_buffer;
+ i_overflow_size = p_sys->i_overflow_buffer_size;
- if ( i_out_size > i_overflow_size )
- memcpy( p_out, p_overflow, i_overflow_size );
+ if ( i_out_size > i_overflow_size )
+ memcpy( p_out, p_overflow, i_overflow_size );
+ else
+ memcpy( p_out, p_overflow, i_out_size );
+
+ p_slide = p_sys->p_overflow_buffer;
+ while( p_slide < p_overflow + i_overflow_size )
+ {
+ if( p_slide + i_out_size < p_overflow + i_overflow_size )
+ {
+ memset( p_slide, 0, i_out_size );
+ if( p_slide + 2 * i_out_size < p_overflow + i_overflow_size )
+ memcpy( p_slide, p_slide + i_out_size, i_out_size );
+ else
+ memcpy( p_slide, p_slide + i_out_size,
+ p_overflow + i_overflow_size - ( p_slide + i_out_size ) );
+ }
else
- memcpy( p_out, p_overflow, i_out_size );
+ {
+ memset( p_slide, 0, p_overflow + i_overflow_size - p_slide );
+ }
+ p_slide += i_out_size;
+ }
- p_slide = p_sys->p_overflow_buffer;
- while( p_slide < p_overflow + i_overflow_size )
+ /* apply the atomic operations */
+ for( i = 0; i < p_sys->i_nb_atomic_operations; i++ )
+ {
+ /* shorter variable names */
+ i_source_channel_offset
+ = p_sys->p_atomic_operations[i].i_source_channel_offset;
+ i_dest_channel_offset
+ = p_sys->p_atomic_operations[i].i_dest_channel_offset;
+ i_delay = p_sys->p_atomic_operations[i].i_delay;
+ d_amplitude_factor
+ = p_sys->p_atomic_operations[i].d_amplitude_factor;
+
+ if( p_out_buf->i_nb_samples > i_delay )
{
- if( p_slide + i_out_size < p_overflow + i_overflow_size )
+ /* current buffer coefficients */
+ for( j = 0; j < p_out_buf->i_nb_samples - i_delay; j++ )
{
- memset( p_slide, 0, i_out_size );
- if( p_slide + 2 * i_out_size < p_overflow + i_overflow_size )
- memcpy( p_slide, p_slide + i_out_size, i_out_size );
- else
- memcpy( p_slide, p_slide + i_out_size,
- p_overflow + i_overflow_size - ( p_slide + i_out_size ) );
+ ((int16_t*)p_out)[ (i_delay+j)*i_output_nb + i_dest_channel_offset ]
+ += p_in[ j * i_input_nb + i_source_channel_offset ]
+ * d_amplitude_factor;
}
- else
+
+ /* overflow buffer coefficients */
+ for( j = 0; j < i_delay; j++ )
{
- memset( p_slide, 0, p_overflow + i_overflow_size - p_slide );
+ ((int16_t*)p_overflow)[ j*i_output_nb + i_dest_channel_offset ]
+ += p_in[ (p_out_buf->i_nb_samples - i_delay + j)
+ * i_input_nb + i_source_channel_offset ]
+ * d_amplitude_factor;
}
- p_slide += i_out_size;
}
-
- /* apply the atomic operations */
- for( i = 0; i < p_sys->i_nb_atomic_operations; i++ )
+ else
{
- /* shorter variable names */
- i_source_channel_offset
- = p_sys->p_atomic_operations[i].i_source_channel_offset;
- i_dest_channel_offset
- = p_sys->p_atomic_operations[i].i_dest_channel_offset;
- i_delay = p_sys->p_atomic_operations[i].i_delay;
- d_amplitude_factor
- = p_sys->p_atomic_operations[i].d_amplitude_factor;
-
- if( p_out_buf->i_nb_samples > i_delay )
- {
- /* current buffer coefficients */
- for( j = 0; j < p_out_buf->i_nb_samples - i_delay; j++ )
- {
- ((int16_t*)p_out)[ (i_delay+j)*i_output_nb + i_dest_channel_offset ]
- += p_in[ j * i_input_nb + i_source_channel_offset ]
- * d_amplitude_factor;
- }
-
- /* overflow buffer coefficients */
- for( j = 0; j < i_delay; j++ )
- {
- ((int16_t*)p_overflow)[ j*i_output_nb + i_dest_channel_offset ]
- += p_in[ (p_out_buf->i_nb_samples - i_delay + j)
- * i_input_nb + i_source_channel_offset ]
- * d_amplitude_factor;
- }
- }
- else
+ /* overflow buffer coefficients only */
+ for( j = 0; j < p_out_buf->i_nb_samples; j++ )
{
- /* overflow buffer coefficients only */
- for( j = 0; j < p_out_buf->i_nb_samples; j++ )
- {
- ((int16_t*)p_overflow)[ (i_delay - p_out_buf->i_nb_samples + j)
- * i_output_nb + i_dest_channel_offset ]
- += p_in[ j * i_input_nb + i_source_channel_offset ]
- * d_amplitude_factor;
- }
+ ((int16_t*)p_overflow)[ (i_delay - p_out_buf->i_nb_samples + j)
+ * i_output_nb + i_dest_channel_offset ]
+ += p_in[ j * i_input_nb + i_source_channel_offset ]
+ * d_amplitude_factor;
}
}
}
- else
- {
- memset( p_out, 0, i_out_size );
- }
}
/* Simple stereo to mono mixing. */
projects / vlc / blobdiff