--- /dev/null
+/*****************************************************************************
+ * araw.c: Pseudo audio decoder; for raw pcm data
+ *****************************************************************************
+ * Copyright (C) 2001, 2002 VideoLAN
+ * $Id: araw.c,v 1.1 2002/10/14 21:59:44 fenrir 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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <vlc/vlc.h>
+#include <vlc/aout.h>
+#include <vlc/decoder.h>
+#include <vlc/input.h>
+
+#include <stdlib.h> /* malloc(), free() */
+#include <string.h> /* strdup() */
+
+/*****************************************************************************
+ * 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;
+
+ /* Input properties */
+ decoder_fifo_t *p_fifo;
+
+ /* Output properties */
+ aout_instance_t * p_aout; /* opaque */
+ aout_input_t * p_aout_input; /* opaque */
+ audio_sample_format_t output_format;
+
+ audio_date_t date;
+ mtime_t pts;
+
+} adec_thread_t;
+
+static int OpenDecoder ( vlc_object_t * );
+
+static int RunDecoder ( decoder_fifo_t * );
+static int InitThread ( adec_thread_t * );
+static void DecodeThread ( adec_thread_t * );
+static void EndThread ( adec_thread_t * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+
+vlc_module_begin();
+ set_description( _("Pseudo Raw Audio decoder") );
+ set_capability( "decoder", 50 );
+ set_callbacks( OpenDecoder, NULL );
+vlc_module_end();
+
+/*****************************************************************************
+ * OpenDecoder: probe the decoder and return score
+ *****************************************************************************
+ * Tries to launch a decoder and return score so that the interface is able
+ * to choose.
+ *****************************************************************************/
+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;
+ return VLC_SUCCESS;
+
+ default:
+ return VLC_EGENERIC;
+ }
+
+}
+
+/*****************************************************************************
+ * RunDecoder: this function is called just after the thread is created
+ *****************************************************************************/
+static int RunDecoder( decoder_fifo_t *p_fifo )
+{
+ adec_thread_t *p_adec;
+ int b_error;
+
+ if( !( p_adec = malloc( sizeof( adec_thread_t ) ) ) )
+ {
+ msg_Err( p_fifo, "out of memory" );
+ DecoderError( p_fifo );
+ return( -1 );
+ }
+ memset( p_adec, 0, sizeof( adec_thread_t ) );
+
+ p_adec->p_fifo = p_fifo;
+
+ if( InitThread( p_adec ) != 0 )
+ {
+ DecoderError( p_fifo );
+ return( -1 );
+ }
+
+ while( ( !p_adec->p_fifo->b_die )&&( !p_adec->p_fifo->b_error ) )
+ {
+ DecodeThread( p_adec );
+ }
+
+
+ if( ( b_error = p_adec->p_fifo->b_error ) )
+ {
+ DecoderError( p_adec->p_fifo );
+ }
+
+ EndThread( p_adec );
+ if( b_error )
+ {
+ return( -1 );
+ }
+
+ return( 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 );
+ }
+ }
+}
+
+/* get the first pes from fifo */
+static pes_packet_t *PESGetFirst( decoder_fifo_t *p_fifo )
+{
+ pes_packet_t *p_pes;
+
+ vlc_mutex_lock( &p_fifo->data_lock );
+
+ /* if fifo is empty wait */
+ while( !p_fifo->p_first )
+ {
+ if( p_fifo->b_die )
+ {
+ vlc_mutex_unlock( &p_fifo->data_lock );
+ return NULL;
+ }
+ vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
+ }
+ p_pes = p_fifo->p_first;
+
+ vlc_mutex_unlock( &p_fifo->data_lock );
+
+ return p_pes;
+}
+static int PESGetSize( pes_packet_t *p_pes )
+{
+ data_packet_t *p_data;
+ int i_size = 0;
+
+ if( !p_pes )
+ {
+ return( 0 );
+ }
+
+ for( p_data = p_pes->p_first; p_data != NULL; p_data = p_data->p_next )
+ {
+ i_size += p_data->p_payload_end - p_data->p_payload_start;
+ }
+
+ return( 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
+ {
+ msg_Err( p_adec->p_fifo, "unknown raw format" );
+ return( -1 );
+ }
+
+ 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 );
+
+ /* Initialize the thread properties */
+ switch( ( p_adec->format.i_bitspersample + 7 ) / 8 )
+ {
+ 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 );
+ }
+ p_adec->output_format.i_rate = p_adec->format.i_samplespersec;
+ p_adec->output_format.i_channels = p_adec->format.i_channels;
+ p_adec->p_aout = NULL;
+ p_adec->p_aout_input = NULL;
+
+ /* **** Create a new audio output **** */
+ aout_DateInit( &p_adec->date, p_adec->output_format.i_rate );
+ p_adec->p_aout_input = aout_DecNew( p_adec->p_fifo,
+ &p_adec->p_aout,
+ &p_adec->output_format );
+ if( !p_adec->p_aout_input )
+ {
+ msg_Err( p_adec->p_fifo, "cannot create aout" );
+ return( -1 );
+ }
+
+ /* Init the BitStream */
+ InitBitstream( &p_adec->bit_stream, p_adec->p_fifo,
+ NULL, NULL );
+
+ return( 0 );
+}
+
+/*****************************************************************************
+ * DecodeThread: decodes a frame
+ *****************************************************************************/
+static void DecodeThread( adec_thread_t *p_adec )
+{
+ aout_buffer_t *p_aout_buffer;
+ int i_samples; // per channels
+ int i_size;
+ pes_packet_t *p_pes;
+
+ /* **** get samples count **** */
+ p_pes = PESGetFirst( p_adec->p_fifo );
+
+ i_size = PESGetSize( p_pes );
+ if( p_adec->format.i_blockalign > 0 )
+ {
+ i_size -= i_size % p_adec->format.i_blockalign;
+ }
+ i_size = __MAX( i_size, p_adec->format.i_blockalign );
+
+ if( !i_size || !p_pes )
+ {
+ msg_Err( p_adec->p_fifo, "infinite loop..." );
+ 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 );
+ 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 );
+ }
+ else if( !aout_DateGet( &p_adec->date ) )
+ {
+ return;
+ }
+
+ p_aout_buffer = aout_DecNewBuffer( p_adec->p_aout,
+ p_adec->p_aout_input,
+ i_samples );
+ if( !p_aout_buffer )
+ {
+ 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 );
+ GetChunk( &p_adec->bit_stream,
+ p_aout_buffer->p_buffer,
+ p_aout_buffer->i_nb_bytes );
+
+ aout_DecPlay( p_adec->p_aout, p_adec->p_aout_input, p_aout_buffer );
+}
+
+
+/*****************************************************************************
+ * EndThread : faad decoder thread destruction
+ *****************************************************************************/
+static void EndThread (adec_thread_t *p_adec)
+{
+ if( p_adec->p_aout_input )
+ {
+ 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 );
+}
+
+
--- /dev/null
+/*****************************************************************************
+ * wav.c : wav file input module for vlc
+ *****************************************************************************
+ * Copyright (C) 2001 VideoLAN
+ * $Id: wav.c,v 1.1 2002/10/14 21:59:44 fenrir 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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdlib.h> /* malloc(), free() */
+#include <string.h> /* strdup() */
+#include <errno.h>
+#include <sys/types.h>
+
+#include <vlc/vlc.h>
+#include <vlc/input.h>
+
+#include "wav.h"
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int WAVInit ( vlc_object_t * );
+static void __WAVEnd ( vlc_object_t * );
+static int WAVDemux ( input_thread_t * );
+static int WAVCallDemux ( input_thread_t * );
+
+#define WAVEnd(a) __WAVEnd(VLC_OBJECT(a))
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( "WAV demuxer" );
+ set_capability( "demux", 142 );
+ set_callbacks( WAVInit, __WAVEnd );
+vlc_module_end();
+
+/*****************************************************************************
+ * Declaration of local function
+ *****************************************************************************/
+
+#define FREE( p ) if( p ) free( p ); (p) = NULL
+
+#define __EVEN( x ) ( (x)%2 != 0 ) ? ((x)+1) : (x)
+
+/* Some functions to manipulate memory */
+static u16 GetWLE( u8 *p_buff )
+{
+ return( (p_buff[0]) + ( p_buff[1] <<8 ) );
+}
+
+static u32 GetDWLE( u8 *p_buff )
+{
+ return( p_buff[0] + ( p_buff[1] <<8 ) +
+ ( p_buff[2] <<16 ) + ( p_buff[3] <<24 ) );
+}
+
+static u32 CreateDWLE( int a, int b, int c, int d )
+{
+ return( a + ( b << 8 ) + ( c << 16 ) + ( d << 24 ) );
+}
+
+
+static off_t TellAbsolute( input_thread_t *p_input )
+{
+ off_t i_pos;
+
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+
+ i_pos= p_input->stream.p_selected_area->i_tell -
+ ( p_input->p_last_data - p_input->p_current_data );
+
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+
+ return( i_pos );
+}
+
+static int SeekAbsolute( input_thread_t *p_input,
+ off_t i_pos)
+{
+ off_t i_filepos;
+
+ if( i_pos >= p_input->stream.p_selected_area->i_size )
+ {
+ return( 0 );
+ }
+
+ i_filepos = TellAbsolute( p_input );
+ if( i_pos != i_filepos )
+ {
+ p_input->pf_seek( p_input, i_pos );
+ input_AccessReinit( p_input );
+ }
+ return( 1 );
+}
+
+static int SkipBytes( input_thread_t *p_input, int i_skip )
+{
+ return( SeekAbsolute( p_input, TellAbsolute( p_input ) + i_skip ) );
+}
+
+/* return 1 if success, 0 if fail */
+static int ReadData( input_thread_t *p_input, u8 *p_buff, int i_size )
+{
+ data_packet_t *p_data;
+
+ int i_read;
+
+
+ if( !i_size )
+ {
+ return( 1 );
+ }
+
+ do
+ {
+ i_read = input_SplitBuffer(p_input, &p_data, __MIN( i_size, 1024 ) );
+ if( i_read <= 0 )
+ {
+ return( 0 );
+ }
+ memcpy( p_buff, p_data->p_payload_start, i_read );
+ input_DeletePacket( p_input->p_method_data, p_data );
+
+ p_buff += i_read;
+ i_size -= i_read;
+
+ } while( i_size );
+
+ return( 1 );
+}
+
+
+static int ReadPES( input_thread_t *p_input,
+ pes_packet_t **pp_pes,
+ int i_size )
+{
+ pes_packet_t *p_pes;
+
+ *pp_pes = NULL;
+
+ if( !(p_pes = input_NewPES( p_input->p_method_data )) )
+ {
+ msg_Err( p_input, "cannot allocate new PES" );
+ return( 0 );
+ }
+
+ while( i_size > 0 )
+ {
+ data_packet_t *p_data;
+ int i_read;
+
+ if( (i_read = input_SplitBuffer( p_input,
+ &p_data,
+ __MIN( i_size, 1024 ) ) ) <= 0 )
+ {
+ input_DeletePES( p_input->p_method_data, p_pes );
+ return( 0 );
+ }
+ if( !p_pes->p_first )
+ {
+ p_pes->p_first = p_data;
+ p_pes->i_nb_data = 1;
+ p_pes->i_pes_size = i_read;
+ }
+ else
+ {
+ p_pes->p_last->p_next = p_data;
+ p_pes->i_nb_data++;
+ p_pes->i_pes_size += i_read;
+ }
+ p_pes->p_last = p_data;
+ i_size -= i_read;
+ }
+ *pp_pes = p_pes;
+ return( 1 );
+}
+
+static int FindTag( input_thread_t *p_input, u32 i_tag )
+{
+ u32 i_id;
+ u32 i_size;
+ u8 *p_peek;
+
+ for( ;; )
+ {
+
+ if( input_Peek( p_input, &p_peek, 8 ) < 8 )
+ {
+ msg_Err( p_input, "cannot peek()" );
+ return( 0 );
+ }
+
+ i_id = GetDWLE( p_peek );
+ i_size = GetDWLE( p_peek + 4 );
+
+ msg_Dbg( p_input, "FindTag: tag:%4.4s size:%d", &i_id, i_size );
+ if( i_id == i_tag )
+ {
+ /* Yes, we have found the good tag */
+ return( 1 );
+ }
+ if( !SkipBytes( p_input, __EVEN( i_size ) + 8 ) )
+ {
+ return( 0 );
+ }
+ }
+}
+
+static int LoadTag_fmt( input_thread_t *p_input,
+ demux_sys_t *p_demux )
+{
+ u8 *p_peek;
+ u32 i_size;
+
+ if( input_Peek( p_input, &p_peek , 8 ) < 8 )
+ {
+ return( 0 );
+ }
+
+ p_demux->i_wf = i_size = GetDWLE( p_peek + 4 );
+ SkipBytes( p_input, 8 );
+ if( i_size < 16 )
+ {
+ SkipBytes( p_input, i_size );
+ return( 0 );
+ }
+ p_demux->p_wf = malloc( i_size );
+ ReadData( p_input, p_demux->p_wf, __EVEN( i_size ) );
+ p_demux->format.i_format = GetWLE( p_demux->p_wf );
+ p_demux->format.i_channels = GetWLE( p_demux->p_wf + 2 );
+ p_demux->format.i_samplepersec = GetDWLE( p_demux->p_wf + 4 );
+ p_demux->format.i_avgbytespersec = GetDWLE( p_demux->p_wf + 8);
+ p_demux->format.i_blockalign = GetWLE( p_demux->p_wf + 12 );
+ p_demux->format.i_bitspersample = GetWLE( p_demux->p_wf + 14);
+ if( i_size > 18 )
+ {
+ p_demux->format.i_size = GetWLE( p_demux->p_wf + 16 );
+ p_demux->format.p_data = malloc( p_demux->format.i_size );
+ memcpy( p_demux->format.p_data,
+ p_demux->p_wf + 18,
+ p_demux->format.i_size );
+ }
+ else
+ {
+ p_demux->format.i_size = 0;
+ p_demux->format.p_data = NULL;
+ }
+
+ msg_Dbg( p_input, "loaded \"fmt \" chunk" );
+ return( 1 );
+}
+
+static int PCM_GetFrame( input_thread_t *p_input,
+ waveformatex_t *p_wf,
+ pes_packet_t **pp_pes,
+ mtime_t *pi_length )
+{
+ int i_samples;
+
+ int i_bytes;
+ int i_modulo;
+
+ /* read samples for 50ms of */
+ i_samples = __MAX( p_wf->i_samplepersec / 20, 1 );
+
+
+ *pi_length = (mtime_t)1000000 *
+ (mtime_t)i_samples /
+ (mtime_t)p_wf->i_samplepersec;
+
+ i_bytes = i_samples * p_wf->i_channels * ( p_wf->i_bitspersample + 7 ) / 8;
+
+ if( p_wf->i_blockalign > 0 )
+ {
+ if( ( i_modulo = i_bytes % p_wf->i_blockalign ) != 0 )
+ {
+ i_bytes += p_wf->i_blockalign - i_modulo;
+ }
+ }
+
+ return( ReadPES( p_input, pp_pes, i_bytes ) );
+}
+
+/*****************************************************************************
+ * WAVInit: check file and initializes structures
+ *****************************************************************************/
+static int WAVInit( vlc_object_t * p_this )
+{
+ input_thread_t *p_input = (input_thread_t *)p_this;
+ u8 *p_peek;
+ u32 i_size;
+
+ demux_sys_t *p_demux;
+
+
+
+ /* Initialize access plug-in structures. */
+ if( p_input->i_mtu == 0 )
+ {
+ /* Improve speed. */
+ p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE ;
+ }
+
+ /* a little test to see if it's a wav file */
+ if( input_Peek( p_input, &p_peek, 12 ) < 12 )
+ {
+ msg_Warn( p_input, "WAV plugin discarded (cannot peek)" );
+ return( -1 );
+ }
+
+ if( ( GetDWLE( p_peek ) != CreateDWLE( 'R', 'I', 'F', 'F' ) )||
+ ( GetDWLE( p_peek + 8 ) != CreateDWLE( 'W', 'A', 'V', 'E' ) ) )
+ {
+ msg_Warn( p_input, "WAV plugin discarded (not a valid file)" );
+ return( -1 );
+ }
+ i_size = GetDWLE( p_peek + 4 );
+ SkipBytes( p_input, 12 );
+
+ if( !FindTag( p_input, CreateDWLE( 'f', 'm', 't' ,' ' ) ) )
+ {
+ msg_Err( p_input, "cannot find \"fmt \" tag" );
+ return( -1 );
+ }
+
+ /* create our structure that will contains all data */
+ if( !( p_input->p_demux_data =
+ p_demux = malloc( sizeof( demux_sys_t ) ) ) )
+ {
+ msg_Err( p_input, "out of memory" );
+ return( -1 );
+ }
+ memset( p_demux, 0, sizeof( demux_sys_t ) );
+
+ /* Load waveformatex_t header */
+ if( !LoadTag_fmt( p_input, p_demux ) )
+ {
+ msg_Err( p_input, "cannot load \"fmt \" tag" );
+ FREE( p_demux );
+ return( -1 );
+ }
+ msg_Dbg( p_input, "format:0x%4.4x channels:%d %dHz %dKo/s blockalign:%d bits/samples:%d extra size:%d",
+ p_demux->format.i_format,
+ p_demux->format.i_channels,
+ p_demux->format.i_samplepersec,
+ p_demux->format.i_avgbytespersec/1024,
+ p_demux->format.i_blockalign,
+ p_demux->format.i_bitspersample,
+ p_demux->format.i_size );
+
+ if( !FindTag( p_input, CreateDWLE( 'd', 'a', 't', 'a' ) ) )
+ {
+ msg_Err( p_input, "cannot find \"data\" tag" );
+ FREE( p_demux->p_wf );
+ FREE( p_demux->format.p_data );
+ FREE( p_demux );
+ return( -1 );
+ }
+ if( input_Peek( p_input, &p_peek, 8 ) < 8 )
+ {
+ msg_Warn( p_input, "WAV plugin discarded (cannot peek)" );
+ FREE( p_demux->p_wf );
+ FREE( p_demux->format.p_data );
+ FREE( p_demux );
+ return( -1 );
+ }
+
+ p_demux->i_data_pos = TellAbsolute( p_input ) + 8;
+ p_demux->i_data_size = GetDWLE( p_peek + 4 );
+ SkipBytes( p_input, 8 );
+
+ /* XXX p_demux->psz_demux shouldn't be NULL ! */
+ switch( p_demux->format.i_format )
+ {
+ case( 0x01 ):
+ msg_Dbg( p_input,"found raw pcm audio format" );
+ p_demux->i_fourcc = VLC_FOURCC( 'a', 'r', 'a', 'w' );
+ p_demux->GetFrame = PCM_GetFrame;
+ p_demux->psz_demux = strdup( "" );
+ break;
+ case( 0x50 ):
+ case( 0x55 ):
+ msg_Dbg( p_input, "found mpeg audio format" );
+ p_demux->i_fourcc = VLC_FOURCC( 'm', 'p', 'g', 'a' );
+ p_demux->GetFrame = NULL;
+ p_demux->psz_demux = strdup( "mpegaudio" );
+ break;
+ case( 0x2000 ):
+ msg_Dbg( p_input,"found a52 audio format" );
+ p_demux->i_fourcc = VLC_FOURCC( 'a', '5', '2', ' ' );
+ p_demux->GetFrame = NULL;
+ p_demux->psz_demux = strdup( "a52" );
+ break;
+ default:
+ msg_Warn( p_input,"unrecognize audio format(0x%x)",
+ p_demux->format.i_format );
+ p_demux->i_fourcc =
+ VLC_FOURCC( 'm', 's',
+ (p_demux->format.i_format >> 8)&0xff,
+ (p_demux->format.i_format )&0xff);
+ p_demux->GetFrame = NULL;
+ p_demux->psz_demux = strdup( "" );
+ break;
+ }
+
+ if( p_demux->GetFrame )
+ {
+ msg_Dbg( p_input, "using internal demux" );
+
+ p_input->pf_demux = WAVDemux;
+ p_input->p_demux_data = p_demux;
+
+ /* create one program */
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ if( input_InitStream( p_input, 0 ) == -1)
+ {
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ msg_Err( p_input, "cannot init stream" );
+ // FIXME
+ return( -1 );
+ }
+ if( input_AddProgram( p_input, 0, 0) == NULL )
+ {
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ msg_Err( p_input, "cannot add program" );
+ // FIXME
+ return( -1 );
+ }
+ p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
+ p_input->stream.i_mux_rate = 0 ; /* FIXME */
+
+ p_demux->p_es = input_AddES( p_input,
+ p_input->stream.p_selected_program, 1,
+ p_demux->i_wf );
+ p_demux->p_es->i_stream_id = 1;
+ p_demux->p_es->i_fourcc = p_demux->i_fourcc;
+ p_demux->p_es->i_cat = AUDIO_ES;
+ if( p_demux->i_wf > 0 && p_demux->p_wf )
+ {
+ memcpy( p_demux->p_es->p_demux_data,
+ p_demux->p_wf,
+ p_demux->i_wf );
+ }
+
+ input_SelectES( p_input, p_demux->p_es );
+
+ p_input->stream.p_selected_program->b_is_ok = 1;
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ }
+ else
+ {
+ char *psz_sav;
+ /* call an external demux */
+ msg_Warn( p_input, "unsupported formattag, using external demux" );
+
+ psz_sav = p_input->psz_demux;
+ p_input->psz_demux = p_demux->psz_demux;
+
+ p_demux->p_demux = module_Need( p_input, "demux", NULL );
+
+ p_input->psz_demux = psz_sav;
+
+ if( !p_demux->p_demux )
+ {
+ msg_Err( p_input,
+ "cannot get external demux for formattag 0x%x",
+ p_demux->format.i_format );
+ FREE( p_demux->psz_demux );
+ FREE( p_demux->p_wf );
+ FREE( p_demux->format.p_data );
+ FREE( p_demux );
+ return( -1 );
+ }
+ /* save value and switch back */
+ p_demux->pf_demux = p_input->pf_demux;
+ p_demux->p_demux_data = p_input->p_demux_data;
+
+ p_input->pf_demux = WAVCallDemux;
+ p_input->p_demux_data = p_demux;
+
+ }
+
+
+ return( 0 );
+}
+
+/*****************************************************************************
+ * WAVCallDemux: call true demux
+ *****************************************************************************
+ * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
+ *****************************************************************************/
+static int WAVCallDemux( input_thread_t *p_input )
+{
+ demux_sys_t *p_demux = p_input->p_demux_data;
+ int i_status;
+ char *psz_sav;
+
+ /* save context */
+ psz_sav = p_input->psz_demux;
+
+ /* switch context */
+ p_input->pf_demux = p_demux->pf_demux;
+ p_input->p_demux_data = p_demux->p_demux_data;
+ p_input->psz_demux = p_demux->psz_demux;
+
+ /* call demux */
+ i_status = p_input->pf_demux( p_input );
+
+ /* save (new?) state */
+ p_demux->pf_demux = p_input->pf_demux;
+ p_demux->p_demux_data = p_input->p_demux_data;
+
+ /* switch back */
+ p_input->psz_demux = psz_sav;
+ p_input->pf_demux = WAVCallDemux;
+ p_input->p_demux_data = p_demux;
+
+ return( i_status );
+}
+
+/*****************************************************************************
+ * WAVDemux: read packet and send them to decoders
+ *****************************************************************************
+ * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
+ *****************************************************************************/
+static int WAVDemux( input_thread_t *p_input )
+{
+ demux_sys_t *p_demux = p_input->p_demux_data;
+ pes_packet_t *p_pes;
+ mtime_t i_length;
+
+ if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
+ {
+ off_t i_offset;
+
+ i_offset = TellAbsolute( p_input ) - p_demux->i_data_pos;
+ if( i_offset < 0 )
+ {
+ SeekAbsolute( p_input, p_demux->i_data_pos );
+ }
+ else
+ if( p_demux->format.i_blockalign != 0 )
+ {
+
+ i_offset = i_offset - i_offset % p_demux->format.i_blockalign;
+ SeekAbsolute( p_input, p_demux->i_data_pos + i_offset );
+ }
+ }
+
+ input_ClockManageRef( p_input,
+ p_input->stream.p_selected_program,
+ p_demux->i_pcr );
+
+ if( TellAbsolute( p_input ) >= p_demux->i_data_pos + p_demux->i_data_size )
+ {
+ return( 0 ); // EOF
+ }
+
+ if( !p_demux->GetFrame( p_input, &p_demux->format, &p_pes, &i_length ) )
+ {
+ msg_Warn( p_input, "failed to get one frame" );
+ return( 0 );
+ }
+
+ p_pes->i_dts =
+ p_pes->i_pts = input_ClockGetTS( p_input,
+ p_input->stream.p_selected_program,
+ p_demux->i_pcr );
+
+ if( !p_demux->p_es->p_decoder_fifo )
+ {
+ msg_Err( p_input, "no audio decoder" );
+ input_DeletePES( p_input->p_method_data, p_pes );
+ return( -1 );
+ }
+ else
+ {
+ input_DecodePES( p_demux->p_es->p_decoder_fifo, p_pes );
+ }
+
+ p_demux->i_pcr += i_length * 9 / 100;
+ return( 1 );
+}
+
+/*****************************************************************************
+ * WAVEnd: frees unused data
+ *****************************************************************************/
+static void __WAVEnd ( vlc_object_t * p_this )
+{
+ input_thread_t * p_input = (input_thread_t *)p_this;
+ demux_sys_t *p_demux = p_input->p_demux_data;
+
+ FREE( p_demux->p_wf );
+ FREE( p_demux->format.p_data );
+ FREE( p_demux->psz_demux );
+
+ if( p_demux->p_demux )
+ {
+ module_Unneed( p_input, p_demux->p_demux );
+ }
+
+}
+
projects / vlc / commitdiff