* This plugin makes use of liba52 to decode A/52 audio
* (http://liba52.sf.net/).
*****************************************************************************
- * Copyright (C) 2001, 2002 the VideoLAN team
+ * Copyright (C) 2001-2009 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
# include "config.h"
#endif
-#include <vlc/vlc.h>
+#include <vlc_common.h>
#include <vlc_plugin.h>
-#ifdef HAVE_STDINT_H
-# include <stdint.h> /* int16_t .. */
-#elif HAVE_INTTYPES_H
-# include <inttypes.h> /* int16_t .. */
-#endif
+#include <stdint.h> /* int16_t .. */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
/* liba52 channel order */
static const uint32_t pi_channels_in[] =
{ AOUT_CHAN_LFE, AOUT_CHAN_LEFT, AOUT_CHAN_CENTER, AOUT_CHAN_RIGHT,
- AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT, 0 };
-/* our internal channel order (WG-4 order) */
-static const uint32_t pi_channels_out[] =
-{ AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT, AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,
- AOUT_CHAN_CENTER, AOUT_CHAN_LFE, 0 };
+ AOUT_CHAN_REARLEFT, AOUT_CHAN_REARCENTER, AOUT_CHAN_REARRIGHT, 0 };
/*****************************************************************************
* Local structures
#define UPMIX_LONGTEXT N_( \
"Enable the internal upmixing algorithm (not recommended).")
-vlc_module_begin();
- set_shortname( "A/52" );
- set_description( N_("ATSC A/52 (AC-3) audio decoder") );
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_ACODEC );
- add_bool( "a52-dynrng", 1, NULL, DYNRNG_TEXT, DYNRNG_LONGTEXT, false );
- add_bool( "a52-upmix", 0, NULL, UPMIX_TEXT, UPMIX_LONGTEXT, true );
- set_capability( "audio filter", 100 );
- set_callbacks( Create, Destroy );
-
- add_submodule();
- set_description( N_("ATSC A/52 (AC-3) audio decoder") );
- set_capability( "audio filter2", 100 );
- set_callbacks( OpenFilter, CloseFilter );
-vlc_module_end();
+vlc_module_begin ()
+ set_shortname( "A/52" )
+ set_description( N_("ATSC A/52 (AC-3) audio decoder") )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACODEC )
+ add_bool( "a52-dynrng", true, NULL, DYNRNG_TEXT, DYNRNG_LONGTEXT, false )
+ add_bool( "a52-upmix", false, NULL, UPMIX_TEXT, UPMIX_LONGTEXT, true )
+ set_capability( "audio filter", 100 )
+ set_callbacks( Create, Destroy )
+
+ add_submodule ()
+ set_description( N_("ATSC A/52 (AC-3) audio decoder") )
+ set_capability( "audio filter2", 100 )
+ set_callbacks( OpenFilter, CloseFilter )
+vlc_module_end ()
/*****************************************************************************
* Create:
static int Create( vlc_object_t *p_this )
{
aout_filter_t *p_filter = (aout_filter_t *)p_this;
- filter_sys_t *p_sys = (filter_sys_t *)p_filter->p_sys;
+ filter_sys_t *p_sys;
int i_ret;
- if ( p_filter->input.i_format != VLC_FOURCC('a','5','2',' ')
+ if ( p_filter->input.i_format != VLC_CODEC_A52
#ifdef LIBA52_FIXED
- || p_filter->output.i_format != VLC_FOURCC('f','i','3','2') )
+ || p_filter->output.i_format != VLC_CODEC_FI32 )
#else
- || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
+ || p_filter->output.i_format != VLC_CODEC_FL32 )
#endif
{
return -1;
p_sys = malloc( sizeof(filter_sys_t) );
p_filter->p_sys = (struct aout_filter_sys_t *)p_sys;
if( p_sys == NULL )
- {
- msg_Err( p_filter, "out of memory" );
return -1;
- }
i_ret = Open( VLC_OBJECT(p_filter), p_sys,
p_filter->input, p_filter->output );
return VLC_EGENERIC;
}
- aout_CheckChannelReorder( pi_channels_in, pi_channels_out,
+ aout_CheckChannelReorder( pi_channels_in, NULL,
output.i_physical_channels & AOUT_CHAN_PHYSMASK,
p_sys->i_nb_channels,
p_sys->pi_chan_table );
/*****************************************************************************
* Interleave: helper function to interleave channels
*****************************************************************************/
-static void Interleave( float * p_out, const float * p_in, int i_nb_channels,
- int *pi_chan_table )
+static void Interleave( sample_t * p_out, const sample_t * p_in,
+ int i_nb_channels, int *pi_chan_table )
{
/* We do not only have to interleave, but also reorder the channels */
/*****************************************************************************
* Duplicate: helper function to duplicate a unique channel
*****************************************************************************/
-static void Duplicate( float * p_out, const float * p_in )
+static void Duplicate( sample_t * p_out, const sample_t * p_in )
{
int i;
/*****************************************************************************
* Exchange: helper function to exchange left & right channels
*****************************************************************************/
-static void Exchange( float * p_out, const float * p_in )
+static void Exchange( sample_t * p_out, const sample_t * p_in )
{
int i;
- const float * p_first = p_in + 256;
- const float * p_second = p_in;
+ const sample_t * p_first = p_in + 256;
+ const sample_t * p_second = p_in;
for ( i = 0; i < 256; i++ )
{
#endif
int i_flags = p_sys->i_flags;
int i_bytes_per_block = 256 * p_sys->i_nb_channels
- * sizeof(float);
+ * sizeof(sample_t);
int i;
/* Do the actual decoding now. */
&& (p_filter->output.i_physical_channels
& (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)) )
{
- Duplicate( (float *)(p_out_buf->p_buffer + i * i_bytes_per_block),
+ Duplicate( (sample_t *)(p_out_buf->p_buffer + i * i_bytes_per_block),
p_samples );
}
else if ( p_filter->output.i_original_channels
& AOUT_CHAN_REVERSESTEREO )
{
- Exchange( (float *)(p_out_buf->p_buffer + i * i_bytes_per_block),
+ Exchange( (sample_t *)(p_out_buf->p_buffer + i * i_bytes_per_block),
p_samples );
}
else
{
/* Interleave the *$£%ù samples. */
- Interleave( (float *)(p_out_buf->p_buffer + i * i_bytes_per_block),
+ Interleave( (sample_t *)(p_out_buf->p_buffer + i * i_bytes_per_block),
p_samples, p_sys->i_nb_channels, p_sys->pi_chan_table);
}
}
filter_sys_t *p_sys;
int i_ret;
- if( p_filter->fmt_in.i_codec != VLC_FOURCC('a','5','2',' ') )
+ if( p_filter->fmt_in.i_codec != VLC_CODEC_A52 )
{
return VLC_EGENERIC;
}
p_filter->fmt_out.audio.i_format =
#ifdef LIBA52_FIXED
- p_filter->fmt_out.i_codec = VLC_FOURCC('f','i','3','2');
+ p_filter->fmt_out.i_codec = VLC_CODEC_FI32;
#else
- p_filter->fmt_out.i_codec = VLC_FOURCC('f','l','3','2');
+ p_filter->fmt_out.i_codec = VLC_CODEC_FL32;
#endif
+ p_filter->fmt_out.audio.i_bitspersample =
+ aout_BitsPerSample( p_filter->fmt_out.i_codec );
/* Allocate the memory needed to store the module's structure */
p_filter->p_sys = p_sys = malloc( sizeof(filter_sys_t) );
if( p_sys == NULL )
- {
- msg_Err( p_filter, "out of memory" );
- return VLC_EGENERIC;
- }
+ return VLC_ENOMEM;
i_ret = Open( VLC_OBJECT(p_filter), p_sys,
p_filter->fmt_in.audio, p_filter->fmt_out.audio );
block_t *p_out;
int i_out_size;
- if( !p_block || !p_block->i_samples )
+ if( !p_block || !p_block->i_nb_samples )
{
- if( p_block ) p_block->pf_release( p_block );
+ if( p_block )
+ block_Release( p_block );
return NULL;
}
- i_out_size = p_block->i_samples *
+ i_out_size = p_block->i_nb_samples *
p_filter->fmt_out.audio.i_bitspersample *
p_filter->fmt_out.audio.i_channels / 8;
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_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;
in_buf.p_buffer = p_block->p_buffer;
in_buf.i_nb_bytes = p_block->i_buffer;
- in_buf.i_nb_samples = p_block->i_samples;
+ in_buf.i_nb_samples = p_block->i_nb_samples;
out_buf.p_buffer = p_out->p_buffer;
out_buf.i_nb_bytes = p_out->i_buffer;
- out_buf.i_nb_samples = p_out->i_samples;
+ out_buf.i_nb_samples = p_out->i_nb_samples;
DoWork( (aout_instance_t *)p_filter, &aout_filter, &in_buf, &out_buf );
p_out->i_buffer = out_buf.i_nb_bytes;
- p_out->i_samples = out_buf.i_nb_samples;
+ p_out->i_nb_samples = out_buf.i_nb_samples;
- p_block->pf_release( p_block );
+ block_Release( p_block );
return p_out;
}
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