--- /dev/null
+/*****************************************************************************
+ * wav.c: wav muxer module for vlc
+ *****************************************************************************
+ * Copyright (C) 2004 VideoLAN
+ * $Id$
+ *
+ * Authors: Gildas Bazin <gbazin@videolan.org>
+ *
+ * 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>
+
+#include <vlc/vlc.h>
+#include <vlc/sout.h>
+
+#include "codecs.h"
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+vlc_module_begin();
+ set_description( _("WAV muxer") );
+ set_capability( "sout mux", 5 );
+ set_callbacks( Open, Close );
+ add_shortcut( "wav" );
+vlc_module_end();
+
+/*****************************************************************************
+ * Exported prototypes
+ *****************************************************************************/
+static int Capability(sout_mux_t *, int, void *, void * );
+static int AddStream( sout_mux_t *, sout_input_t * );
+static int DelStream( sout_mux_t *, sout_input_t * );
+static int Mux ( sout_mux_t * );
+
+struct sout_mux_sys_t
+{
+ vlc_bool_t b_used;
+ vlc_bool_t b_header;
+
+ /* Wave header for the output data */
+ WAVEHEADER waveheader;
+};
+
+/*****************************************************************************
+ * Open:
+ *****************************************************************************/
+static int Open( vlc_object_t *p_this )
+{
+ sout_mux_t *p_mux = (sout_mux_t*)p_this;
+ sout_mux_sys_t *p_sys;
+
+ p_mux->pf_capacity = Capability;
+ p_mux->pf_addstream = AddStream;
+ p_mux->pf_delstream = DelStream;
+ p_mux->pf_mux = Mux;
+
+ p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
+ p_sys->b_used = VLC_FALSE;
+ p_sys->b_header = VLC_TRUE;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Close:
+ *****************************************************************************/
+static void Close( vlc_object_t * p_this )
+{
+ sout_mux_t *p_mux = (sout_mux_t*)p_this;
+ sout_mux_sys_t *p_sys = p_mux->p_sys;
+
+ free( p_sys );
+}
+
+static int Capability( sout_mux_t *p_mux, int i_query,
+ void *p_args, void *p_answer )
+{
+ switch( i_query )
+ {
+ case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
+ *(vlc_bool_t*)p_answer = VLC_FALSE;
+ return SOUT_MUX_CAP_ERR_OK;
+ default:
+ return SOUT_MUX_CAP_ERR_UNIMPLEMENTED;
+ }
+}
+
+static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
+{
+ sout_mux_sys_t *p_sys = p_mux->p_sys;
+ int i_bytes_per_sample;
+
+ if( p_input->p_fmt->i_cat != AUDIO_ES )
+ msg_Dbg( p_mux, "not an audio stream" );
+
+ if( p_sys->b_used )
+ {
+ msg_Dbg( p_mux, "can't add more than 1 stream" );
+ return VLC_EGENERIC;
+ }
+
+ msg_Dbg( p_mux, "adding input %i channels, %iHz",
+ p_input->p_fmt->audio.i_channels,
+ p_input->p_fmt->audio.i_rate );
+
+ //p_input->p_fmt->i_codec;
+
+ /* Build a WAV header for the output data */
+ memset( &p_sys->waveheader, 0, sizeof(WAVEHEADER) );
+ SetWLE( &p_sys->waveheader.Format, 1 ); /*WAVE_FORMAT_PCM*/
+ SetWLE( &p_sys->waveheader.BitsPerSample, 16);
+ p_sys->waveheader.MainChunkID = VLC_FOURCC('R', 'I', 'F', 'F');
+ p_sys->waveheader.Length = 0; /* we just don't know */
+ p_sys->waveheader.ChunkTypeID = VLC_FOURCC('W', 'A', 'V', 'E');
+ p_sys->waveheader.SubChunkID = VLC_FOURCC('f', 'm', 't', ' ');
+ SetDWLE( &p_sys->waveheader.SubChunkLength, 16 );
+ SetWLE( &p_sys->waveheader.Modus, p_input->p_fmt->audio.i_channels );
+ SetDWLE( &p_sys->waveheader.SampleFreq, p_input->p_fmt->audio.i_rate );
+ i_bytes_per_sample = p_input->p_fmt->audio.i_channels *
+ 16 /*BitsPerSample*/ / 8;
+ SetWLE( &p_sys->waveheader.BytesPerSample, i_bytes_per_sample );
+ SetDWLE( &p_sys->waveheader.BytesPerSec,
+ i_bytes_per_sample * p_input->p_fmt->audio.i_rate );
+ p_sys->waveheader.DataChunkID = VLC_FOURCC('d', 'a', 't', 'a');
+ p_sys->waveheader.DataLength = 0; /* we just don't know */
+
+ p_sys->b_used = VLC_TRUE;
+
+ return VLC_SUCCESS;
+}
+
+static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
+{
+ msg_Dbg( p_mux, "removing input" );
+ return VLC_SUCCESS;
+}
+
+static int Mux( sout_mux_t *p_mux )
+{
+ sout_mux_sys_t *p_sys = p_mux->p_sys;
+
+ if( !p_mux->i_nb_inputs ) return VLC_SUCCESS;
+
+ if( p_sys->b_header )
+ {
+ /* Return only the header */
+ block_t *p_block = block_New( p_mux, sizeof( WAVEHEADER ) );
+ memcpy( p_block->p_buffer, &p_sys->waveheader, sizeof(WAVEHEADER) );
+
+ msg_Dbg( p_mux, "writing header data" );
+ sout_AccessOutWrite( p_mux->p_access, p_block );
+ }
+ p_sys->b_header = VLC_FALSE;
+
+ while( p_mux->pp_inputs[0]->p_fifo->i_depth > 0 )
+ {
+ block_t *p_block = block_FifoGet( p_mux->pp_inputs[0]->p_fifo );
+ sout_AccessOutWrite( p_mux->p_access, p_block );
+ }
+
+ return VLC_SUCCESS;
+}
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