Commit 90a612c6 authored by Sam Hocevar's avatar Sam Hocevar

* ./modules/audio_filter/converter/fixed32tofloat32.c: fixed conversion.

  * ./modules/codec/mad/libmad.c: ported to the latest aout changes. Still
    doesn't work here, though.
parent 00724b73
......@@ -2,7 +2,7 @@
* fixed32float32.c : converter from fixed32 to float32 bits integer
*****************************************************************************
* Copyright (C) 2002 VideoLAN
* $Id: fixed32tofloat32.c,v 1.6 2002/08/21 22:41:59 massiot Exp $
* $Id: fixed32tofloat32.c,v 1.7 2002/08/22 17:14:52 sam Exp $
*
* Authors: Jean-Paul Saman <jpsaman@wxs.nl>
*
......@@ -87,31 +87,7 @@ static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
for ( i = p_in_buf->i_nb_samples * p_filter->input.i_channels ; i-- ; )
{
/* convert vlc_fixed_t into s32 */
#if 0
s32 temp;
if ( *p_in >= 8 ) temp = 32767;
else if ( *p_in < -8 ) temp = -32768;
else temp = *p_in * (s32) 4096; // (32768/8);
#endif
/* convert s32 into float */
#if 0
if (temp >= 32768)
*p_out = (float) 1.0;
else if (temp <= -32768)
*p_out = (float) -1.0;
else *p_out = (float) (temp/32768.0);
#endif
/* combined conversion */
/* This has absolutely no chance of working. *p_in is s32, gcc
* doesn't know anything of vlc_fixed_t... --Meuuh */
if ( *p_in >= 8 ) *p_out = (float) 1.0;
else if ( *p_in < -8 ) *p_out = (float) -1.0;
else *p_out =(float) (*p_in/8.0);
p_in++; p_out++;
*p_out++ = (float)*p_in++ / -(float)FIXED32_MIN;
}
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
......
......@@ -42,19 +42,19 @@
*****************************************************************************/
static int OpenDecoder ( vlc_object_t * );
static int RunDecoder ( decoder_fifo_t * );
static int InitThread ( mad_adec_thread_t * p_mad_adec );
static void EndThread ( mad_adec_thread_t * p_mad_adec );
static int InitThread ( mad_adec_thread_t * );
static void EndThread ( mad_adec_thread_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define DOWNSCALE_TEXT N_("Mad audio downscale routine (fast,mp321)")
#define DOWNSCALE_TEXT N_("mad audio downscale routine (fast,mpg321)")
#define DOWNSCALE_LONGTEXT N_( \
"Specify the mad audio downscale routine you want to use. By default " \
"the mad plugin will use the fastest routine.")
vlc_module_begin();
add_category_hint( N_("Miscellaneous"), NULL );
add_category_hint( N_("Libmad"), NULL );
add_string( "downscale", "fast", NULL, DOWNSCALE_TEXT, DOWNSCALE_LONGTEXT );
set_description( _("libmad MPEG 1/2/3 audio decoder") );
set_capability( "decoder", 100 );
......@@ -85,68 +85,71 @@ static int OpenDecoder( vlc_object_t *p_this )
*****************************************************************************/
static int RunDecoder( decoder_fifo_t *p_fifo )
{
mad_adec_thread_t * p_mad_adec;
mad_adec_thread_t * p_dec;
int i_ret;
/* Allocate the memory needed to store the thread's structure */
p_mad_adec = (mad_adec_thread_t *) malloc(sizeof(mad_adec_thread_t));
p_dec = (mad_adec_thread_t *) malloc(sizeof(mad_adec_thread_t));
if (p_mad_adec == NULL)
if (p_dec == NULL)
{
msg_Err( p_fifo, "out of memory" );
DecoderError( p_fifo );
return( -1 );
return VLC_ENOMEM;
}
/*
* Initialize the thread properties
*/
p_mad_adec->p_fifo = p_fifo;
if( InitThread( p_mad_adec ) )
p_dec->p_fifo = p_fifo;
if( InitThread( p_dec ) )
{
msg_Err( p_fifo, "could not initialize thread" );
DecoderError( p_fifo );
free( p_mad_adec );
return( -1 );
free( p_dec );
return VLC_ETHREAD;
}
/* mad decoder thread's main loop */
while ((!p_mad_adec->p_fifo->b_die) && (!p_mad_adec->p_fifo->b_error))
while( !p_dec->p_fifo->b_die && !p_dec->p_fifo->b_error )
{
msg_Dbg( p_mad_adec->p_fifo, "starting libmad decoder" );
if (mad_decoder_run(p_mad_adec->libmad_decoder, MAD_DECODER_MODE_SYNC)==-1)
msg_Dbg( p_dec->p_fifo, "starting libmad decoder" );
i_ret = mad_decoder_run( &p_dec->libmad_decoder,
MAD_DECODER_MODE_SYNC );
if( i_ret == -1 )
{
msg_Err( p_mad_adec->p_fifo, "libmad decoder returned abnormally" );
DecoderError( p_mad_adec->p_fifo );
EndThread(p_mad_adec);
return( -1 );
msg_Err( p_dec->p_fifo, "libmad decoder returned abnormally" );
DecoderError( p_dec->p_fifo );
EndThread(p_dec);
return VLC_EGENERIC;
}
}
/* If b_error is set, the mad decoder thread enters the error loop */
if (p_mad_adec->p_fifo->b_error)
if (p_dec->p_fifo->b_error)
{
DecoderError( p_mad_adec->p_fifo );
DecoderError( p_dec->p_fifo );
}
/* End of the mad decoder thread */
EndThread (p_mad_adec);
EndThread (p_dec);
return( 0 );
return VLC_SUCCESS;
}
/*****************************************************************************
* InitThread: initialize data before entering main loop
*****************************************************************************/
static int InitThread( mad_adec_thread_t * p_mad_adec )
static int InitThread( mad_adec_thread_t * p_dec )
{
decoder_fifo_t * p_fifo = p_mad_adec->p_fifo;
decoder_fifo_t * p_fifo = p_dec->p_fifo;
char *psz_downscale = NULL;
/* Initialize the thread properties */
p_mad_adec->p_aout = NULL;
p_mad_adec->p_aout_input = NULL;
p_mad_adec->output_format.i_format = AOUT_FMT_FIXED32;
p_mad_adec->output_format.i_channels = 2; /* FIXME ! */
p_dec->p_aout = NULL;
p_dec->p_aout_input = NULL;
p_dec->output_format.i_format = AOUT_FMT_FIXED32;
p_dec->output_format.i_channels = 2; /* FIXME ! */
/*
* Properties of audio for libmad
......@@ -157,45 +160,43 @@ static int InitThread( mad_adec_thread_t * p_mad_adec )
if ( strncmp(psz_downscale,"fast",4)==0 )
{
p_mad_adec->audio_scaling = FAST_SCALING;
p_dec->audio_scaling = FAST_SCALING;
msg_Dbg( p_fifo, "downscale fast selected" );
}
else if ( strncmp(psz_downscale,"mpg321",7)==0 )
{
p_mad_adec->audio_scaling = MPG321_SCALING;
p_dec->audio_scaling = MPG321_SCALING;
msg_Dbg( p_fifo, "downscale mpg321 selected" );
}
else
{
p_mad_adec->audio_scaling = FAST_SCALING;
p_dec->audio_scaling = FAST_SCALING;
msg_Dbg( p_fifo, "downscale default fast selected" );
}
if (psz_downscale) free(psz_downscale);
/* Initialize the libmad decoder structures */
p_mad_adec->libmad_decoder = (struct mad_decoder*) malloc(sizeof(struct mad_decoder));
if (p_mad_adec->libmad_decoder == NULL)
{
msg_Err( p_mad_adec->p_fifo, "out of memory" );
return -1;
}
p_mad_adec->i_current_pts = p_mad_adec->i_next_pts = 0;
p_dec->i_current_pts = p_dec->i_next_pts = 0;
mad_decoder_init( p_mad_adec->libmad_decoder,
p_mad_adec, /* vlc's thread structure and p_fifo playbuffer */
mad_decoder_init( &p_dec->libmad_decoder,
p_dec, /* vlc's thread structure and p_fifo playbuffer */
libmad_input, /* input_func */
0, /* header_func */
0, /* filter */
libmad_output3, /* output_func */
0, /* error */
0); /* message */
NULL, /* header_func */
NULL, /* filter */
libmad_output, /* output_func */
NULL, /* error */
NULL ); /* message */
mad_decoder_options(p_mad_adec->libmad_decoder, MAD_OPTION_IGNORECRC);
mad_decoder_options( &p_dec->libmad_decoder, MAD_OPTION_IGNORECRC );
/*
* Initialize the input properties
*/
/* Init the Bitstream */
InitBitstream( &p_dec->bit_stream, p_dec->p_fifo, NULL, NULL );
/* Get the first data packet. */
vlc_mutex_lock( &p_fifo->data_lock );
while ( p_fifo->p_first == NULL )
......@@ -203,32 +204,30 @@ static int InitThread( mad_adec_thread_t * p_mad_adec )
if ( p_fifo->b_die )
{
vlc_mutex_unlock( &p_fifo->data_lock );
return( -1 );
return VLC_EGENERIC;
}
vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
}
vlc_mutex_unlock( &p_fifo->data_lock );
p_mad_adec->p_data = p_fifo->p_first->p_first;
p_dec->p_data = p_fifo->p_first->p_first;
return( 0 );
return VLC_SUCCESS;
}
/*****************************************************************************
* EndThread : libmad decoder thread destruction
*****************************************************************************/
static void EndThread (mad_adec_thread_t * p_mad_adec)
static void EndThread (mad_adec_thread_t * p_dec)
{
/* If the audio output fifo was created, we destroy it */
if (p_mad_adec->p_aout_input != NULL)
if (p_dec->p_aout_input != NULL)
{
aout_InputDelete( p_mad_adec->p_aout, p_mad_adec->p_aout_input );
aout_InputDelete( p_dec->p_aout, p_dec->p_aout_input );
}
/* mad_decoder_finish releases the memory allocated inside the struct */
mad_decoder_finish( p_mad_adec->libmad_decoder );
mad_decoder_finish( &p_dec->libmad_decoder );
/* Unlock the modules, p_mad_adec->p_fifo is released by the decoder subsystem */
free( p_mad_adec->libmad_decoder );
free( p_mad_adec );
free( p_dec );
}
......@@ -29,7 +29,7 @@ typedef struct mad_adec_thread_s
/*
* Decoder properties
*/
struct mad_decoder *libmad_decoder;
struct mad_decoder libmad_decoder;
mad_timer_t libmad_timer;
byte_t buffer[MAD_BUFFER_MDLEN];
......@@ -38,6 +38,9 @@ typedef struct mad_adec_thread_s
*/
vlc_thread_t thread_id; /* id for thread functions */
/* The bit stream structure handles the PES stream at the bit level */
bit_stream_t bit_stream;
/*
* Input properties
*/
......@@ -47,19 +50,14 @@ typedef struct mad_adec_thread_s
/* Store i_pts for syncing audio frames */
mtime_t i_current_pts, i_next_pts;
/*
* Output properties
*/
//old way aout_fifo_t * p_aout_fifo; /* stores the decompressed audio frames */
/*
* Output properties
*/
aout_instance_t * p_aout; /* opaque */
aout_input_t * p_aout_input; /* opaque */
audio_sample_format_t output_format;
audio_date_t end_date;
mtime_t last_date;
enum mad_scaling audio_scaling;
} mad_adec_thread_t;
......
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