* araw.c: Pseudo audio decoder; for raw pcm data
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
- * $Id: araw.c,v 1.5 2002/10/27 16:58:14 gbazin Exp $
+ * $Id: araw.c,v 1.18 2003/10/25 00:49:13 sam Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#include <stdlib.h> /* malloc(), free() */
#include <string.h> /* strdup() */
-
+#include "codecs.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-typedef struct waveformatex_s
-{
- u16 i_formattag;
- u16 i_channels;
- u32 i_samplespersec;
- u32 i_avgbytespersec;
- u16 i_blockalign;
- u16 i_bitspersample;
- u16 i_size; /* the extra size in bytes */
- u8 *p_data; /* The extra data */
-} waveformatex_t;
typedef struct adec_thread_s
{
- waveformatex_t format;
-
- /* The bit stream structure handles the PES stream at the bit level */
-// bit_stream_t bit_stream;
+ WAVEFORMATEX *p_wf;
/* Input properties */
decoder_fifo_t *p_fifo;
-
+ int16_t *p_logtos16; // used with m/alaw to int16_t
+
/* Output properties */
aout_instance_t * p_aout; /* opaque */
aout_input_t * p_aout_input; /* opaque */
*****************************************************************************/
vlc_module_begin();
- set_description( _("Pseudo Raw Audio decoder") );
+ set_description( _("Pseudo Raw/Log Audio decoder") );
set_capability( "decoder", 50 );
set_callbacks( OpenDecoder, NULL );
vlc_module_end();
-static int i_channels_maps[6] =
-{
- 0,
- AOUT_CHAN_MONO, AOUT_CHAN_STEREO,
- AOUT_CHAN_3F, AOUT_CHAN_2F2R,
- AOUT_CHAN_3F2R
-};
-
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
- decoder_fifo_t *p_fifo = (decoder_fifo_t*) p_this;
-
- switch( p_fifo->i_fourcc )
- {
- case VLC_FOURCC('a','r','a','w'):
- case VLC_FOURCC('t','w','o','s'): /* for mov file */
- p_fifo->pf_run = RunDecoder;
+ decoder_t *p_dec = (decoder_t*)p_this;
+
+ switch( p_dec->p_fifo->i_fourcc )
+ {
+ case VLC_FOURCC('a','r','a','w'): /* from wav/avi/asf file */
+ case VLC_FOURCC('t','w','o','s'): /* _signed_ big endian samples (mov)*/
+ case VLC_FOURCC('s','o','w','t'): /* _signed_ little endian samples (mov)*/
+
+ case VLC_FOURCC('a','l','a','w'):
+ case VLC_FOURCC('u','l','a','w'):
+ p_dec->pf_run = RunDecoder;
return VLC_SUCCESS;
-
+
default:
return VLC_EGENERIC;
}
-
}
+static int pi_channels_maps[6] =
+{
+ 0,
+ AOUT_CHAN_CENTER,
+ AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
+ AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER,
+ AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARLEFT,
+ AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
+ | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARLEFT
+};
+
+static int16_t ulawtos16[256] =
+{
+ -32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956,
+ -23932, -22908, -21884, -20860, -19836, -18812, -17788, -16764,
+ -15996, -15484, -14972, -14460, -13948, -13436, -12924, -12412,
+ -11900, -11388, -10876, -10364, -9852, -9340, -8828, -8316,
+ -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140,
+ -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092,
+ -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004,
+ -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980,
+ -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436,
+ -1372, -1308, -1244, -1180, -1116, -1052, -988, -924,
+ -876, -844, -812, -780, -748, -716, -684, -652,
+ -620, -588, -556, -524, -492, -460, -428, -396,
+ -372, -356, -340, -324, -308, -292, -276, -260,
+ -244, -228, -212, -196, -180, -164, -148, -132,
+ -120, -112, -104, -96, -88, -80, -72, -64,
+ -56, -48, -40, -32, -24, -16, -8, 0,
+ 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956,
+ 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764,
+ 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412,
+ 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316,
+ 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140,
+ 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092,
+ 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004,
+ 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980,
+ 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436,
+ 1372, 1308, 1244, 1180, 1116, 1052, 988, 924,
+ 876, 844, 812, 780, 748, 716, 684, 652,
+ 620, 588, 556, 524, 492, 460, 428, 396,
+ 372, 356, 340, 324, 308, 292, 276, 260,
+ 244, 228, 212, 196, 180, 164, 148, 132,
+ 120, 112, 104, 96, 88, 80, 72, 64,
+ 56, 48, 40, 32, 24, 16, 8, 0
+};
+
+static int16_t alawtos16[256] =
+{
+ -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736,
+ -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784,
+ -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368,
+ -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392,
+ -22016, -20992, -24064, -23040, -17920, -16896, -19968, -18944,
+ -30208, -29184, -32256, -31232, -26112, -25088, -28160, -27136,
+ -11008, -10496, -12032, -11520, -8960, -8448, -9984, -9472,
+ -15104, -14592, -16128, -15616, -13056, -12544, -14080, -13568,
+ -344, -328, -376, -360, -280, -264, -312, -296,
+ -472, -456, -504, -488, -408, -392, -440, -424,
+ -88, -72, -120, -104, -24, -8, -56, -40,
+ -216, -200, -248, -232, -152, -136, -184, -168,
+ -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184,
+ -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696,
+ -688, -656, -752, -720, -560, -528, -624, -592,
+ -944, -912, -1008, -976, -816, -784, -880, -848,
+ 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736,
+ 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784,
+ 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368,
+ 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392,
+ 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944,
+ 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136,
+ 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472,
+ 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568,
+ 344, 328, 376, 360, 280, 264, 312, 296,
+ 472, 456, 504, 488, 408, 392, 440, 424,
+ 88, 72, 120, 104, 24, 8, 56, 40,
+ 216, 200, 248, 232, 152, 136, 184, 168,
+ 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184,
+ 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696,
+ 688, 656, 752, 720, 560, 528, 624, 592,
+ 944, 912, 1008, 976, 816, 784, 880, 848
+};
+
/*****************************************************************************
* RunDecoder: this function is called just after the thread is created
*****************************************************************************/
return( -1 );
}
memset( p_adec, 0, sizeof( adec_thread_t ) );
-
+
p_adec->p_fifo = p_fifo;
if( InitThread( p_adec ) != 0 )
#define FREE( p ) if( p ) free( p ); p = NULL
-#define GetWLE( p ) \
- ( *(u8*)(p) + ( *((u8*)(p)+1) << 8 ) )
-
-#define GetDWLE( p ) \
- ( *(u8*)(p) + ( *((u8*)(p)+1) << 8 ) + \
- ( *((u8*)(p)+2) << 16 ) + ( *((u8*)(p)+3) << 24 ) )
-
-static void GetWaveFormatEx( waveformatex_t *p_wh,
- u8 *p_data )
-{
-
- p_wh->i_formattag = GetWLE( p_data );
- p_wh->i_channels = GetWLE( p_data + 2 );
- p_wh->i_samplespersec = GetDWLE( p_data + 4 );
- p_wh->i_avgbytespersec= GetDWLE( p_data + 8 );
- p_wh->i_blockalign = GetWLE( p_data + 12 );
- p_wh->i_bitspersample = GetWLE( p_data + 14 );
- if( p_wh->i_formattag != 1 )
- {
- p_wh->i_size = GetWLE( p_data + 16 );
-
- if( p_wh->i_size )
- {
- p_wh->p_data = malloc( p_wh->i_size );
- memcpy( p_wh->p_data, p_data + 18, p_wh->i_size );
- }
- }
-}
/*****************************************************************************
* InitThread: initialize data before entering main loop
*****************************************************************************/
-
static int InitThread( adec_thread_t * p_adec )
{
-
- if( p_adec->p_fifo->p_demux_data )
- {
- GetWaveFormatEx( &p_adec->format,
- (u8*)p_adec->p_fifo->p_demux_data );
- /* fixing some values */
- if( p_adec->format.i_formattag == 1 && !p_adec->format.i_blockalign )
- {
- p_adec->format.i_blockalign = p_adec->format.i_channels *
- ( ( p_adec->format.i_bitspersample + 7 ) / 8 );
- }
- }
- else
+ if( ( p_adec->p_wf = (WAVEFORMATEX*)p_adec->p_fifo->p_waveformatex )
+ == NULL )
{
msg_Err( p_adec->p_fifo, "unknown raw format" );
return( -1 );
}
+ /* fixing some values */
+ if( ( p_adec->p_wf->wFormatTag == WAVE_FORMAT_PCM ||
+ p_adec->p_wf->wFormatTag == WAVE_FORMAT_IEEE_FLOAT )&&
+ !p_adec->p_wf->nBlockAlign )
+ {
+ p_adec->p_wf->nBlockAlign =
+ p_adec->p_wf->nChannels *
+ ( ( p_adec->p_wf->wBitsPerSample + 7 ) / 8 );
+ }
+
msg_Dbg( p_adec->p_fifo,
- "raw format: samplerate:%dHz channels:%d bits/sample:%d blockalign:%d",
- p_adec->format.i_samplespersec,
- p_adec->format.i_channels,
- p_adec->format.i_bitspersample, p_adec->format.i_blockalign );
+ "raw format: samplerate:%dHz channels:%d bits/sample:%d "
+ "blockalign:%d",
+ p_adec->p_wf->nSamplesPerSec,
+ p_adec->p_wf->nChannels,
+ p_adec->p_wf->wBitsPerSample,
+ p_adec->p_wf->nBlockAlign );
/* Initialize the thread properties */
- switch( ( p_adec->format.i_bitspersample + 7 ) / 8 )
+ p_adec->p_logtos16 = NULL;
+ if( p_adec->p_wf->wFormatTag == WAVE_FORMAT_IEEE_FLOAT )
{
- case( 2 ):
- p_adec->output_format.i_format = VLC_FOURCC('s','1','6','l');
- break;
- case( 3 ):
- p_adec->output_format.i_format = VLC_FOURCC('s','2','4','l');
- break;
- case( 4 ):
- p_adec->output_format.i_format = VLC_FOURCC('s','3','2','l');
- break;
-
- case( 1 ):
- default:
- msg_Err( p_adec->p_fifo, "bad parameters(bits/sample)" );
- return( -1 );
+ switch( ( p_adec->p_wf->wBitsPerSample + 7 ) / 8 )
+ {
+ case( 4 ):
+ p_adec->output_format.i_format = VLC_FOURCC('f','l','3','2');
+ break;
+ case( 8 ):
+ p_adec->output_format.i_format = VLC_FOURCC('f','l','6','4');
+ break;
+ default:
+ msg_Err( p_adec->p_fifo, "bad parameters(bits/sample)" );
+ return( -1 );
+ }
+ }
+ else
+ {
+ if( p_adec->p_fifo->i_fourcc == VLC_FOURCC( 't', 'w', 'o', 's' ) )
+ {
+ switch( ( p_adec->p_wf->wBitsPerSample + 7 ) / 8 )
+ {
+ case( 1 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','8',' ',' ');
+ break;
+ case( 2 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','1','6','b');
+ break;
+ case( 3 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','2','4','b');
+ break;
+ case( 4 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','3','2','b');
+ break;
+ default:
+ msg_Err( p_adec->p_fifo, "bad parameters(bits/sample)" );
+ return( -1 );
+ }
+ }
+ else if( p_adec->p_fifo->i_fourcc == VLC_FOURCC( 's', 'o', 'w', 't' ) )
+ {
+ switch( ( p_adec->p_wf->wBitsPerSample + 7 ) / 8 )
+ {
+ case( 1 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','8',' ',' ');
+ break;
+ case( 2 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','1','6','l');
+ break;
+ case( 3 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','2','4','l');
+ break;
+ case( 4 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','3','2','l');
+ break;
+ default:
+ msg_Err( p_adec->p_fifo, "bad parameters(bits/sample)" );
+ return( -1 );
+ }
+ }
+ else if( p_adec->p_fifo->i_fourcc == VLC_FOURCC( 'a', 'r', 'a', 'w' ) )
+ {
+ switch( ( p_adec->p_wf->wBitsPerSample + 7 ) / 8 )
+ {
+ case( 1 ):
+ p_adec->output_format.i_format = VLC_FOURCC('u','8',' ',' ');
+ break;
+ case( 2 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','1','6','l');
+ break;
+ case( 3 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','2','4','l');
+ break;
+ case( 4 ):
+ p_adec->output_format.i_format = VLC_FOURCC('s','3','2','l');
+ break;
+ default:
+ msg_Err( p_adec->p_fifo, "bad parameters(bits/sample)" );
+ return( -1 );
+ }
+ }
+ else if( p_adec->p_fifo->i_fourcc == VLC_FOURCC( 'a', 'l', 'a', 'w' ) )
+ {
+ p_adec->output_format.i_format = AOUT_FMT_S16_NE;
+ p_adec->p_logtos16 = alawtos16;
+ }
+ else if( p_adec->p_fifo->i_fourcc == VLC_FOURCC( 'u', 'l', 'a', 'w' ) )
+ {
+ p_adec->output_format.i_format = AOUT_FMT_S16_NE;
+ p_adec->p_logtos16 = ulawtos16;
+ }
}
- p_adec->output_format.i_rate = p_adec->format.i_samplespersec;
+ p_adec->output_format.i_rate = p_adec->p_wf->nSamplesPerSec;
- if( p_adec->format.i_channels <= 0 ||
- p_adec->format.i_channels > 5 )
+ if( p_adec->p_wf->nChannels <= 0 || p_adec->p_wf->nChannels > 5 )
{
msg_Err( p_adec->p_fifo, "bad channels count(1-5)" );
return( -1 );
}
- p_adec->output_format.i_channels =
- i_channels_maps[p_adec->format.i_channels];
+ p_adec->output_format.i_physical_channels =
+ p_adec->output_format.i_original_channels =
+ pi_channels_maps[p_adec->p_wf->nChannels];
p_adec->p_aout = NULL;
p_adec->p_aout_input = NULL;
return( -1 );
}
- /* Init the BitStream */
-// InitBitstream( &p_adec->bit_stream, p_adec->p_fifo,
-// NULL, NULL );
-
return( 0 );
}
-static void GetPESData( u8 *p_buf, int i_max, pes_packet_t *p_pes )
+static void GetPESData( uint8_t *p_buf, int i_max, pes_packet_t *p_pes )
{
int i_copy;
int i_count;
while( p_data != NULL && i_count < i_max )
{
- i_copy = __MIN( p_data->p_payload_end - p_data->p_payload_start, i_max - i_count );
-
+ i_copy = __MIN( p_data->p_payload_end - p_data->p_payload_start,
+ i_max - i_count );
+
if( i_copy > 0 )
{
memcpy( p_buf,
aout_buffer_t *p_aout_buffer;
int i_samples; // per channels
int i_size;
-
+ uint8_t *p_data, *p;
pes_packet_t *p_pes;
/* **** get samples count **** */
}
i_size = p_pes->i_pes_size;
- if( p_adec->format.i_blockalign > 0 )
+ if( p_adec->p_wf->nBlockAlign > 0 )
{
- i_size -= i_size % p_adec->format.i_blockalign;
+ i_size -= i_size % p_adec->p_wf->nBlockAlign;
}
- i_size = __MAX( i_size, p_adec->format.i_blockalign );
-
- if( !i_size || !p_pes )
+ if( i_size <= 0 || i_size < p_adec->p_wf->nBlockAlign )
{
- msg_Err( p_adec->p_fifo, "infinite loop..." );
+ input_DeletePES( p_adec->p_fifo->p_packets_mgt, p_pes );
return;
}
- i_samples = i_size /
- ( ( p_adec->format.i_bitspersample + 7 ) / 8 ) /
- p_adec->format.i_channels;
-// msg_Warn( p_adec->p_fifo, "got %d samples (%d bytes)", i_samples, i_size );
+ i_samples = i_size / ( ( p_adec->p_wf->wBitsPerSample + 7 ) / 8 ) /
+ p_adec->p_wf->nChannels;
+
p_adec->pts = p_pes->i_pts;
-
+
/* **** Now we can output these samples **** */
-
+
if( p_adec->pts != 0 && p_adec->pts != aout_DateGet( &p_adec->date ) )
{
aout_DateSet( &p_adec->date, p_adec->pts );
return;
}
- p_aout_buffer = aout_DecNewBuffer( p_adec->p_aout,
- p_adec->p_aout_input,
- i_samples );
- if( !p_aout_buffer )
+ /* gather data */
+ p = p_data = malloc( i_size );
+ GetPESData( p_data, i_size, p_pes );
+
+ while( i_samples > 0 )
{
- msg_Err( p_adec->p_fifo, "cannot get aout buffer" );
- p_adec->p_fifo->b_error = 1;
- return;
- }
-
- p_aout_buffer->start_date = aout_DateGet( &p_adec->date );
- p_aout_buffer->end_date = aout_DateIncrement( &p_adec->date,
- i_samples );
+ int i_copy;
+
+ i_copy = __MIN( i_samples, 1024 );
+ p_aout_buffer = aout_DecNewBuffer( p_adec->p_aout,
+ p_adec->p_aout_input,
+ i_copy );
+ if( !p_aout_buffer )
+ {
+ msg_Err( p_adec->p_fifo, "cannot get aout buffer" );
+ p_adec->p_fifo->b_error = 1;
+
+ free( p_data );
+ return;
+ }
+
+ p_aout_buffer->start_date = aout_DateGet( &p_adec->date );
+ p_aout_buffer->end_date = aout_DateIncrement( &p_adec->date,
+ i_copy );
+
+ if( p_adec->p_logtos16 )
+ {
+ int16_t *s = (int16_t*)p_aout_buffer->p_buffer;
- GetPESData( p_aout_buffer->p_buffer, p_aout_buffer->i_nb_bytes, p_pes );
+ unsigned int i;
- aout_DecPlay( p_adec->p_aout, p_adec->p_aout_input, p_aout_buffer );
+ for( i = 0; i < p_aout_buffer->i_nb_bytes; i++ )
+ {
+ *s++ = p_adec->p_logtos16[*p++];
+ }
+ }
+ else
+ {
+ memcpy( p_aout_buffer->p_buffer, p,
+ p_aout_buffer->i_nb_bytes );
+
+ p += p_aout_buffer->i_nb_bytes;
+ }
+
+ aout_DecPlay( p_adec->p_aout, p_adec->p_aout_input, p_aout_buffer );
+ i_samples -= i_copy;
+ }
+ free( p_data );
input_DeletePES( p_adec->p_fifo->p_packets_mgt, p_pes );
}
-
/*****************************************************************************
* EndThread : faad decoder thread destruction
*****************************************************************************/
aout_DecDelete( p_adec->p_aout, p_adec->p_aout_input );
}
- FREE( p_adec->format.p_data );
-
msg_Dbg( p_adec->p_fifo, "raw audio decoder closed" );
-
+
free( p_adec );
}
-
-
projects / vlc / blobdiff