Commit e07a1121 authored by Gildas Bazin's avatar Gildas Bazin

* modules/mux/wav.c: start of a WAV audio file muxer.

parent bd6ee669
......@@ -1139,7 +1139,7 @@ AC_ARG_ENABLE(sout,
if test "${enable_sout}" != "no"
then
VLC_ADD_PLUGINS([access_output_dummy access_output_udp access_output_file access_output_http])
VLC_ADD_PLUGINS([mux_ps mux_avi mux_mp4 mux_asf mux_dummy])
VLC_ADD_PLUGINS([mux_ps mux_avi mux_mp4 mux_asf mux_dummy mux_wav])
VLC_ADD_PLUGINS([packetizer_mpegvideo packetizer_h264])
VLC_ADD_PLUGINS([packetizer_mpeg4video packetizer_mpeg4audio])
VLC_ADD_PLUGINS([packetizer_copy])
......
......@@ -3,3 +3,4 @@ SOURCES_mux_avi = avi.c
SOURCES_mux_ogg = ogg.c
SOURCES_mux_mp4 = mp4.c
SOURCES_mux_asf = asf.c
SOURCES_mux_wav = wav.c
/*****************************************************************************
* 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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