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vlc-1.1
Commit aba1225f authored by Christophe Massiot's avatar Christophe Massiot
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Added support for 32 kHz LPCM streams (thanks _Demo_ !).

parent de7a1d45
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Showing with 147 additions and 60 deletions
Makefile.am
View file @ aba1225f
......@@ -466,9 +466,9 @@ vlc.app: vlc $(PLUGIN_FILES)
$(INSTALL) -d vlc.app/Contents/MacOS/share
$(INSTALL) -m 644 share/*.psf vlc.app/Contents/MacOS/share
$(INSTALL) -d vlc.app/Contents/MacOS/locale
for i in $(CATALOGS); do
mkdir -p vlc.app/Contents/MacOS/locale/$${i%.gmo}/LC_MESSAGES
cp po/$$i vlc.app/Contents/MacOS/locale/$${i%.gmo}/LC_MESSAGES/vlc.mo
for i in $(CATALOGS); do \
mkdir -p vlc.app/Contents/MacOS/locale/$${i%.gmo}/LC_MESSAGES \
cp po/$$i vlc.app/Contents/MacOS/locale/$${i%.gmo}/LC_MESSAGES/vlc.mo \
done
endif
......
modules/codec/a52.c
View file @ aba1225f
......@@ -2,7 +2,7 @@
* a52.c: A/52 basic parser
*****************************************************************************
* Copyright (C) 2001-2002 VideoLAN
* $Id: a52.c,v 1.19 2002/12/06 16:34:05 sam Exp $
* $Id: a52.c,v 1.20 2002/12/28 02:02:18 massiot Exp $
*
* Authors: Stphane Borel <stef@via.ecp.fr>
* Christophe Massiot <massiot@via.ecp.fr>
......@@ -137,7 +137,7 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
return -1;
}
/* decoder thread's main loop */
/* Decoder thread's main loop */
while ( !p_dec->p_fifo->b_die && !p_dec->p_fifo->b_error )
{
int i_bit_rate;
......@@ -149,10 +149,11 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
/* Look for sync word - should be 0x0b77 */
RealignBits( &p_dec->bit_stream );
while ( (ShowBits( &p_dec->bit_stream, 16 ) ) != 0x0b77 &&
(!p_dec->p_fifo->b_die) && (!p_dec->p_fifo->b_error))
(!p_dec->p_fifo->b_die) && (!p_dec->p_fifo->b_error) )
{
RemoveBits( &p_dec->bit_stream, 8 );
}
if ( p_dec->p_fifo->b_die || p_dec->p_fifo->b_error ) break;
/* Set the Presentation Time Stamp */
NextPTS( &p_dec->bit_stream, &pts, NULL );
......@@ -163,7 +164,7 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
/* Get A/52 frame header */
GetChunk( &p_dec->bit_stream, p_header, 7 );
if( p_dec->p_fifo->b_die ) break;
if ( p_dec->p_fifo->b_die || p_dec->p_fifo->b_error ) break;
/* Check if frame is valid and get frame info */
i_frame_size = SyncInfo( p_header, &i_original_channels, &i_rate,
......@@ -218,7 +219,11 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
p_buffer = aout_DecNewBuffer( p_dec->p_aout, p_dec->p_aout_input,
A52_FRAME_NB );
if ( p_buffer == NULL ) return -1;
if ( p_buffer == NULL )
{
p_dec->p_fifo->b_error = 1;
break;
}
p_buffer->start_date = aout_DateGet( &end_date );
p_buffer->end_date = aout_DateIncrement( &end_date,
A52_FRAME_NB );
......@@ -234,17 +239,15 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
break;
}
/* Send the buffer to the mixer. */
/* Send the buffer to the aout core. */
aout_DecPlay( p_dec->p_aout, p_dec->p_aout_input, p_buffer );
}
/* If b_error is set, the spdif thread enters the error loop */
if( p_dec->p_fifo->b_error )
{
DecoderError( p_dec->p_fifo );
}
/* End of the spdif decoder thread */
EndThread( p_dec );
return 0;
......
modules/codec/lpcm.c
View file @ aba1225f
......@@ -2,10 +2,11 @@
* lpcm.c: lpcm decoder module
*****************************************************************************
* Copyright (C) 1999-2001 VideoLAN
* $Id: lpcm.c,v 1.7 2002/11/14 22:38:47 massiot Exp $
* $Id: lpcm.c,v 1.8 2002/12/28 02:02:18 massiot Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Henri Fallon <henri@videolan.org>
* Christophe Massiot <massiot@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
......@@ -37,7 +38,8 @@
# include <unistd.h> /* getpid() */
#endif
#define LPCM_FRAME_NB 502
/* DVD PES size (2048) - 40 bytes (headers) */
#define LPCM_FRAME_LENGTH 2008
/*****************************************************************************
* dec_thread_t : lpcm decoder thread descriptor
......@@ -65,14 +67,28 @@ typedef struct dec_thread_t
audio_date_t end_date;
} dec_thread_t;
/*
* LPCM header :
* - PES header
* - private stream ID (16 bits) == 0xA0 -> not in the bitstream
* - frame number (8 bits)
* - unknown (16 bits) == 0x0003 ?
* - unknown (4 bits)
* - current frame (4 bits)
* - unknown (2 bits)
* - frequency (2 bits) 0 == 48 kHz, 1 == 32 kHz, 2 == ?, 3 == ?
* - unknown (1 bit)
* - number of channels - 1 (3 bits) 1 == 2 channels
* - start code (8 bits) == 0x80
*/
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int OpenDecoder ( vlc_object_t * );
static int RunDecoder ( decoder_fifo_t * );
void DecodeFrame ( dec_thread_t * );
// static int InitThread ( dec_thread_t * );
static void DecodeFrame ( dec_thread_t * );
static void EndThread ( dec_thread_t * );
/*****************************************************************************
......@@ -130,29 +146,11 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
return -1;
}
/* FIXME : I suppose the number of channel and sampling rate
* are somewhere in the headers */
p_dec->output_format.i_format = VLC_FOURCC('s','1','6','b');
p_dec->output_format.i_physical_channels
= p_dec->output_format.i_original_channels
= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
p_dec->output_format.i_rate = 48000;
aout_DateInit( &p_dec->end_date, 48000 );
p_dec->p_aout = NULL;
p_dec->p_aout_input = aout_DecNew( p_dec->p_fifo,
&p_dec->p_aout,
&p_dec->output_format );
if ( p_dec->p_aout_input == NULL )
{
msg_Err( p_dec->p_fifo, "failed to create aout fifo" );
p_dec->p_fifo->b_error = 1;
EndThread( p_dec );
return( -1 );
}
p_dec->p_aout_input = NULL;
/* lpcm decoder thread's main loop */
/* LPCM decoder thread's main loop */
while ( (!p_dec->p_fifo->b_die) && (!p_dec->p_fifo->b_error) )
{
DecodeFrame(p_dec);
......@@ -173,50 +171,136 @@ static int RunDecoder( decoder_fifo_t * p_fifo )
/*****************************************************************************
* DecodeFrame: decodes a frame.
*****************************************************************************/
void DecodeFrame( dec_thread_t * p_dec )
static void DecodeFrame( dec_thread_t * p_dec )
{
aout_buffer_t * p_aout_buffer;
aout_buffer_t * p_buffer;
mtime_t i_pts;
uint8_t i_header;
unsigned int i_rate, i_original_channels;
NextPTS( &p_dec->bit_stream, &i_pts, NULL );
/* Look for sync word - should be 0xXX80 */
RealignBits( &p_dec->bit_stream );
while ( (ShowBits( &p_dec->bit_stream, 16 ) & 0xc8ff) != 0x0080 &&
(!p_dec->p_fifo->b_die) && (!p_dec->p_fifo->b_error) )
{
RemoveBits( &p_dec->bit_stream, 8 );
}
if ( p_dec->p_fifo->b_die || p_dec->p_fifo->b_error ) return;
NextPTS( &p_dec->bit_stream, &i_pts, NULL );
if( i_pts != 0 && i_pts != aout_DateGet( &p_dec->end_date ) )
{
aout_DateSet( &p_dec->end_date, i_pts );
}
p_aout_buffer = aout_DecNewBuffer( p_dec->p_aout,
p_dec->p_aout_input,
LPCM_FRAME_NB );
/* Get LPCM header. */
i_header = GetBits( &p_dec->bit_stream, 16 ) >> 8;
if( !p_aout_buffer )
switch ( i_header >> 4 )
{
msg_Err( p_dec->p_fifo, "cannot get aout buffer" );
case 0:
i_rate = 48000;
break;
case 1:
i_rate = 32000;
break;
default:
msg_Err( p_dec->p_fifo, "unsupported LPCM rate (0x%x)", i_header );
p_dec->p_fifo->b_error = 1;
return;
}
p_aout_buffer->start_date = aout_DateGet( &p_dec->end_date );
p_aout_buffer->end_date = aout_DateIncrement( &p_dec->end_date,
LPCM_FRAME_NB );
switch ( i_header & 0x7 )
{
case 0:
i_original_channels = AOUT_CHAN_CENTER;
break;
case 1:
i_original_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
break;
case 3:
i_original_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
break;
case 5:
i_original_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
| AOUT_CHAN_CENTER | AOUT_CHAN_LFE;
break;
case 2:
case 4:
case 6:
case 7:
default:
msg_Err( p_dec->p_fifo, "unsupported LPCM channels (0x%x)",
i_header );
p_dec->p_fifo->b_error = 1;
return;
}
/* Look for sync word - should be 0x0180 */
RealignBits( &p_dec->bit_stream );
while ( (GetBits( &p_dec->bit_stream, 16 ) ) != 0x0180 &&
(!p_dec->p_fifo->b_die) && (!p_dec->p_fifo->b_error));
if( (p_dec->p_aout_input != NULL) &&
( (p_dec->output_format.i_rate != i_rate)
|| (p_dec->output_format.i_original_channels
!= i_original_channels) ) )
{
/* Parameters changed - this should not happen. */
aout_DecDelete( p_dec->p_aout, p_dec->p_aout_input );
p_dec->p_aout_input = NULL;
}
/* Creating the audio input if not created yet. */
if( p_dec->p_aout_input == NULL )
{
p_dec->output_format.i_rate = i_rate;
p_dec->output_format.i_original_channels = i_original_channels;
p_dec->output_format.i_physical_channels
= i_original_channels & AOUT_CHAN_PHYSMASK;
aout_DateInit( &p_dec->end_date, i_rate );
p_dec->p_aout_input = aout_DecNew( p_dec->p_fifo,
&p_dec->p_aout,
&p_dec->output_format );
GetChunk( &p_dec->bit_stream, p_aout_buffer->p_buffer,
LPCM_FRAME_NB * 4);
if ( p_dec->p_aout_input == NULL )
{
p_dec->p_fifo->b_error = 1;
return;
}
}
if ( !aout_DateGet( &p_dec->end_date ) )
{
byte_t p_junk[LPCM_FRAME_LENGTH];
/* We've just started the stream, wait for the first PTS. */
GetChunk( &p_dec->bit_stream, p_junk, LPCM_FRAME_LENGTH );
return;
}
p_buffer = aout_DecNewBuffer( p_dec->p_aout, p_dec->p_aout_input,
LPCM_FRAME_LENGTH / p_dec->output_format.i_bytes_per_frame );
if( p_buffer == NULL )
{
msg_Err( p_dec->p_fifo, "cannot get aout buffer" );
p_dec->p_fifo->b_error = 1;
return;
}
p_buffer->start_date = aout_DateGet( &p_dec->end_date );
p_buffer->end_date = aout_DateIncrement( &p_dec->end_date,
LPCM_FRAME_LENGTH / p_dec->output_format.i_bytes_per_frame );
/* Get the whole frame. */
GetChunk( &p_dec->bit_stream, p_buffer->p_buffer,
LPCM_FRAME_LENGTH);
if( p_dec->p_fifo->b_die )
{
aout_DecDeleteBuffer( p_dec->p_aout, p_dec->p_aout_input,
p_aout_buffer );
p_buffer );
return;
}
aout_DecPlay( p_dec->p_aout, p_dec->p_aout_input,
p_aout_buffer );
/* Send the buffer to the aout core. */
aout_DecPlay( p_dec->p_aout, p_dec->p_aout_input, p_buffer );
}
/*****************************************************************************
......
src/audio_output/dec.c
View file @ aba1225f
......@@ -2,7 +2,7 @@
* dec.c : audio output API towards decoders
*****************************************************************************
* Copyright (C) 2002 VideoLAN
* $Id: dec.c,v 1.4 2002/12/10 18:22:01 gbazin Exp $
* $Id: dec.c,v 1.5 2002/12/28 02:02:18 massiot Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
......@@ -69,9 +69,9 @@ static aout_input_t * DecNew( aout_instance_t * p_aout,
p_input->b_changed = 0;
p_input->b_error = 1;
aout_FormatPrepare( &p_format );
memcpy( &p_input->input, p_format,
sizeof(audio_sample_format_t) );
aout_FormatPrepare( &p_input->input );
p_aout->pp_inputs[p_aout->i_nb_inputs] = p_input;
p_aout->i_nb_inputs++;
......
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