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vlc/modules/stream_out/es.c
Laurent Aimar 43a8115c06 * all: cosmetics.
2004-07-10 17:20:59 +00:00

415 lines
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/*****************************************************************************
* es.c: Elementary stream output module
*****************************************************************************
* Copyright (C) 2003-2004 VideoLAN
* $Id$
*
* 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>
#include <string.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define ACCESS_TEXT N_("Output access method")
#define ACCESS_LONGTEXT N_( \
"Allows you to specify the output access method used for the streaming " \
"output." )
#define ACCESSA_TEXT N_("Audio output access method")
#define ACCESSA_LONGTEXT N_( \
"Allows you to specify the output access method used for the audio " \
"streaming output." )
#define ACCESSV_TEXT N_("Video output access method")
#define ACCESSV_LONGTEXT N_( \
"Allows you to specify the output access method used for the video " \
"streaming output." )
#define MUX_TEXT N_("Output muxer")
#define MUX_LONGTEXT N_( \
"Allows you to specify the muxer used for the streaming output." )
#define MUXA_TEXT N_("Audio output muxer")
#define MUXA_LONGTEXT N_( \
"Allows you to specify the muxer used for the audio streaming output." )
#define MUXV_TEXT N_("Video output muxer")
#define MUXV_LONGTEXT N_( \
"Allows you to specify the muxer used for the video streaming output." )
#define DEST_TEXT N_("Output URL")
#define DEST_LONGTEXT N_( \
"Allows you to specify the output URL used for the streaming output." )
#define DESTA_TEXT N_("Audio output URL")
#define DESTA_LONGTEXT N_( \
"Allows you to specify the output URL used for the audio streaming " \
"output." )
#define DESTV_TEXT N_("Video output URL")
#define DESTV_LONGTEXT N_( \
"Allows you to specify the output URL used for the video streaming " \
"output." )
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
#define SOUT_CFG_PREFIX "sout-es-"
vlc_module_begin();
set_description( _("Elementary stream output") );
set_capability( "sout stream", 50 );
add_shortcut( "es" );
add_string( SOUT_CFG_PREFIX "access", "", NULL, ACCESS_TEXT,
ACCESS_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "access-audio", "", NULL, ACCESSA_TEXT,
ACCESSA_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "access-video", "", NULL, ACCESSV_TEXT,
ACCESSV_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
MUX_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "mux-audio", "", NULL, MUXA_TEXT,
MUXA_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "mux-video", "", NULL, MUXV_TEXT,
MUXV_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "dst", "", NULL, DEST_TEXT,
DEST_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "dst-audio", "", NULL, DESTA_TEXT,
DESTA_LONGTEXT, VLC_TRUE );
add_string( SOUT_CFG_PREFIX "dst-video", "", NULL, DESTV_TEXT,
DESTV_LONGTEXT, VLC_TRUE );
set_callbacks( Open, Close );
vlc_module_end();
#define FREE( p ) if( p ) { free( p ); (p) = NULL; }
/*****************************************************************************
* Exported prototypes
*****************************************************************************/
static const char *ppsz_sout_options[] = {
"access", "access-audio", "access-video",
"mux", "mux-audio", "mux-video",
"dst", "dst-audio", "dst-video",
NULL
};
static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
static int Del ( sout_stream_t *, sout_stream_id_t * );
static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
struct sout_stream_sys_t
{
int i_count_audio;
int i_count_video;
int i_count;
char *psz_mux;
char *psz_mux_audio;
char *psz_mux_video;
char *psz_access;
char *psz_access_audio;
char *psz_access_video;
char *psz_dst;
char *psz_dst_audio;
char *psz_dst_video;
};
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_stream_sys_t *p_sys;
vlc_value_t val;
sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options, p_stream->p_cfg );
p_sys = malloc( sizeof( sout_stream_sys_t ) );
p_sys->i_count = 0;
p_sys->i_count_audio = 0;
p_sys->i_count_video = 0;
var_Get( p_stream, SOUT_CFG_PREFIX "access", &val );
p_sys->psz_access = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "access-audio", &val );
p_sys->psz_access_audio = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "access-video", &val );
p_sys->psz_access_video = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
p_sys->psz_mux = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "mux-audio", &val );
p_sys->psz_mux_audio = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "mux-video", &val );
p_sys->psz_mux_video = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "dst", &val );
p_sys->psz_dst = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "dst-audio", &val );
p_sys->psz_dst_audio = val.psz_string;
var_Get( p_stream, SOUT_CFG_PREFIX "dst-video", &val );
p_sys->psz_dst_video = val.psz_string;
p_stream->pf_add = Add;
p_stream->pf_del = Del;
p_stream->pf_send = Send;
p_stream->p_sys = p_sys;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_stream_sys_t *p_sys = p_stream->p_sys;
free( p_sys->psz_access );
free( p_sys->psz_access_audio );
free( p_sys->psz_access_video );
free( p_sys->psz_mux );
free( p_sys->psz_mux_audio );
free( p_sys->psz_mux_video );
free( p_sys->psz_dst );
free( p_sys->psz_dst_audio );
free( p_sys->psz_dst_video );
free( p_sys );
}
struct sout_stream_id_t
{
sout_input_t *p_input;
sout_mux_t *p_mux;
};
static char * es_print_url( char *psz_fmt, vlc_fourcc_t i_fourcc, int i_count,
char *psz_access, char *psz_mux )
{
char *psz_dst, *p;
if( psz_fmt == NULL || !*psz_fmt )
{
psz_fmt = "stream-%n-%c.%m";
}
p = psz_dst = malloc( 4096 );
memset( p, 0, 4096 );
for( ;; )
{
if( *psz_fmt == '\0' )
{
*p = '\0';
break;
}
if( *psz_fmt != '%' )
{
*p++ = *psz_fmt++;
}
else
{
if( psz_fmt[1] == 'n' )
{
p += sprintf( p, "%d", i_count );
}
else if( psz_fmt[1] == 'c' )
{
p += sprintf( p, "%4.4s", (char*)&i_fourcc );
}
else if( psz_fmt[1] == 'm' )
{
p += sprintf( p, "%s", psz_mux );
}
else if( psz_fmt[1] == 'a' )
{
p += sprintf( p, "%s", psz_access );
}
else if( psz_fmt[1] != '\0' )
{
p += sprintf( p, "%c%c", psz_fmt[0], psz_fmt[1] );
}
else
{
p += sprintf( p, "%c", psz_fmt[0] );
*p++ = '\0';
break;
}
psz_fmt += 2;
}
}
return( psz_dst );
}
static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
sout_instance_t *p_sout = p_stream->p_sout;
sout_stream_id_t *id;
char *psz_access;
char *psz_mux;
char *psz_dst;
sout_access_out_t *p_access;
sout_mux_t *p_mux;
/* *** get access name *** */
if( p_fmt->i_cat == AUDIO_ES && p_sys->psz_access_audio && *p_sys->psz_access_audio )
{
psz_access = p_sys->psz_access_audio;
}
else if( p_fmt->i_cat == VIDEO_ES && p_sys->psz_access_video && *p_sys->psz_access_video )
{
psz_access = p_sys->psz_access_video;
}
else
{
psz_access = p_sys->psz_access;
}
/* *** get mux name *** */
if( p_fmt->i_cat == AUDIO_ES && p_sys->psz_mux_audio && *p_sys->psz_mux_audio )
{
psz_mux = p_sys->psz_mux_audio;
}
else if( p_fmt->i_cat == VIDEO_ES && p_sys->psz_mux_video && *p_sys->psz_mux_video )
{
psz_mux = p_sys->psz_mux_video;
}
else
{
psz_mux = p_sys->psz_mux;
}
/* Get url (%d expanded as a codec count, %c expanded as codec fcc ) */
if( p_fmt->i_cat == AUDIO_ES && p_sys->psz_dst_audio && *p_sys->psz_dst_audio )
{
psz_dst = es_print_url( p_sys->psz_dst_audio, p_fmt->i_codec,
p_sys->i_count_audio, psz_access, psz_mux );
}
else if( p_fmt->i_cat == VIDEO_ES && p_sys->psz_dst_video && *p_sys->psz_dst_video )
{
psz_dst = es_print_url( p_sys->psz_dst_video, p_fmt->i_codec,
p_sys->i_count_video, psz_access, psz_mux );
}
else
{
int i_count;
if( p_fmt->i_cat == VIDEO_ES )
{
i_count = p_sys->i_count_video;
}
else if( p_fmt->i_cat == AUDIO_ES )
{
i_count = p_sys->i_count_audio;
}
else
{
i_count = p_sys->i_count;
}
psz_dst = es_print_url( p_sys->psz_dst, p_fmt->i_codec,
i_count, psz_access, psz_mux );
}
p_sys->i_count++;
if( p_fmt->i_cat == VIDEO_ES )
{
p_sys->i_count_video++;
}
else if( p_fmt->i_cat == AUDIO_ES )
{
p_sys->i_count_audio++;
}
msg_Dbg( p_stream, "creating `%s/%s://%s'",
psz_access, psz_mux, psz_dst );
/* *** find and open appropriate access module *** */
p_access = sout_AccessOutNew( p_sout, psz_access, psz_dst );
if( p_access == NULL )
{
msg_Err( p_stream, "no suitable sout access module for `%s/%s://%s'",
psz_access, psz_mux, psz_dst );
return( NULL );
}
/* *** find and open appropriate mux module *** */
p_mux = sout_MuxNew( p_sout, psz_mux, p_access );
if( p_mux == NULL )
{
msg_Err( p_stream, "no suitable sout mux module for `%s/%s://%s'",
psz_access, psz_mux, psz_dst );
sout_AccessOutDelete( p_access );
return( NULL );
}
id = malloc( sizeof( sout_stream_id_t ) );
id->p_mux = p_mux;
id->p_input = sout_MuxAddStream( p_mux, p_fmt );
if( id->p_input == NULL )
{
free( id );
sout_MuxDelete( p_mux );
sout_AccessOutDelete( p_access );
free( id );
return NULL;
}
return id;
}
static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
{
sout_access_out_t *p_access = id->p_mux->p_access;
sout_MuxDeleteStream( id->p_mux, id->p_input );
sout_AccessOutDelete( p_access );
free( id );
return VLC_SUCCESS;
}
static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *p_buffer )
{
sout_MuxSendBuffer( id->p_mux, id->p_input, p_buffer );
return VLC_SUCCESS;
}
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