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MacAddict 83
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MacAddict_083_2003-07.iso
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VLC Source 0.5.3.dmg
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src
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stream_output
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stream_output.c
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C/C++ Source or Header
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2003-04-07
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36KB
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1,303 lines
/*****************************************************************************
* stream_output.c : stream output module
*****************************************************************************
* Copyright (C) 2002 VideoLAN
* $Id: stream_output.c,v 1.23 2003/03/31 03:46:11 fenrir Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
* Laurent Aimar <fenrir@via.ecp.fr>
* Eric Petit <titer@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> /* free() */
#include <stdio.h> /* sprintf() */
#include <string.h> /* strerror() */
#include <vlc/vlc.h>
#include <vlc/sout.h>
#undef DEBUG_BUFFER
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int InstanceNewOutput ( sout_instance_t *, char * );
static int InstanceMuxNew ( sout_instance_t *,
char *, char *, char * );
static sout_mux_t * MuxNew ( sout_instance_t*,
char *, sout_access_out_t * );
static sout_input_t *MuxAddStream ( sout_mux_t *, sout_packet_format_t * );
static void MuxDeleteStream ( sout_mux_t *, sout_input_t * );
static void MuxDelete ( sout_mux_t * );
#if 0
typedef struct
{
/* if muxer doesn't support adding stream at any time then we first wait
* for stream then we refuse all stream and start muxing */
vlc_bool_t b_add_stream_any_time;
vlc_bool_t b_waiting_stream;
/* we wait one second after first stream added */
mtime_t i_add_stream_start;
} sout_instance_sys_mux_t;
#endif
struct sout_instance_sys_t
{
int i_d_u_m_m_y;
};
/*
* Generic MRL parser
*
*/
/* <access>{options}/<way>{options}://<name> */
typedef struct mrl_option_s
{
struct mrl_option_s *p_next;
char *psz_name;
char *psz_value;
} mrl_option_t;
typedef struct
{
char *psz_access;
mrl_option_t *p_access_options;
char *psz_way;
mrl_option_t *p_way_options;
char *psz_name;
} mrl_t;
/* mrl_Parse: parse psz_mrl and fill p_mrl */
static int mrl_Parse( mrl_t *p_mrl, char *psz_mrl );
/* mrl_Clean: clean p_mrl after a call to mrl_Parse */
static void mrl_Clean( mrl_t *p_mrl );
/* some macro */
#define TAB_APPEND( count, tab, p ) \
if( (count) > 0 ) \
{ \
(tab) = realloc( (tab), sizeof( void ** ) * ( (count) + 1 ) ); \
} \
else \
{ \
(tab) = malloc( sizeof( void ** ) ); \
} \
(void**)(tab)[(count)] = (void*)(p); \
(count)++
#define TAB_FIND( count, tab, p, index ) \
{ \
int _i_; \
(index) = -1; \
for( _i_ = 0; _i_ < (count); _i_++ ) \
{ \
if((void**)(tab)[_i_]==(void*)(p)) \
{ \
(index) = _i_; \
break; \
} \
} \
}
#define TAB_REMOVE( count, tab, p ) \
{ \
int i_index; \
TAB_FIND( count, tab, p, i_index ); \
if( i_index >= 0 ) \
{ \
if( count > 1 ) \
{ \
memmove( ((void**)tab + i_index), \
((void**)tab + i_index+1), \
( (count) - i_index - 1 ) * sizeof( void* ) );\
} \
else \
{ \
free( tab ); \
(tab) = NULL; \
} \
(count)--; \
} \
}
#define FREE( p ) if( p ) { free( p ); (p) = NULL; }
/*****************************************************************************
* sout_NewInstance: creates a new stream output instance
*****************************************************************************/
sout_instance_t * __sout_NewInstance ( vlc_object_t *p_parent,
char * psz_dest )
{
sout_instance_t *p_sout;
char *psz_dup, *psz_parser, *psz_pos;
/* Allocate descriptor */
p_sout = vlc_object_create( p_parent, VLC_OBJECT_SOUT );
if( p_sout == NULL )
{
msg_Err( p_parent, "out of memory" );
return NULL;
}
p_sout->psz_sout = NULL;
p_sout->i_nb_dest = 0;
p_sout->ppsz_dest = NULL;
p_sout->i_preheader = 0;
p_sout->i_nb_mux = 0;
p_sout->pp_mux = 0;
vlc_mutex_init( p_sout, &p_sout->lock );
p_sout->i_nb_inputs = 0;
p_sout->pp_inputs = NULL;
p_sout->p_sys = malloc( sizeof( sout_instance_sys_t ) );
/* now parse psz_sout */
psz_dup = strdup( psz_dest );
psz_parser = psz_dup;
while( ( psz_pos = strchr( psz_parser, '#' ) ) != NULL )
{
*psz_pos++ = '\0';
if( InstanceNewOutput( p_sout, psz_parser ) )
{
msg_Err( p_sout, "adding `%s' failed", psz_parser );
}
psz_parser = psz_pos;
}
if( *psz_parser )
{
if( InstanceNewOutput( p_sout, psz_parser ) )
{
msg_Err( p_sout, "adding `%s' failed", psz_parser );
}
}
free( psz_dup );
if( p_sout->i_nb_dest <= 0 )
{
msg_Err( p_sout, "all sout failed" );
vlc_object_destroy( p_sout );
return( NULL );
}
vlc_object_attach( p_sout, p_parent );
return p_sout;
}
/*****************************************************************************
* sout_DeleteInstance: delete a previously allocated instance
*****************************************************************************/
void sout_DeleteInstance( sout_instance_t * p_sout )
{
int i;
/* Unlink object */
vlc_object_detach( p_sout );
/* *** free all string *** */
FREE( p_sout->psz_sout );
for( i = 0; i < p_sout->i_nb_dest; i++ )
{
FREE( p_sout->ppsz_dest[i] );
}
FREE( p_sout->ppsz_dest );
/* *** there shouldn't be any input ** */
if( p_sout->i_nb_inputs > 0 )
{
msg_Err( p_sout, "i_nb_inputs=%d > 0 !!!!!!", p_sout->i_nb_inputs );
msg_Err( p_sout, "mmmh I have a bad feeling..." );
}
vlc_mutex_destroy( &p_sout->lock );
/* *** remove all muxer *** */
for( i = 0; i < p_sout->i_nb_mux; i++ )
{
sout_access_out_t *p_access;
#define p_mux p_sout->pp_mux[i]
p_access = p_mux->p_access;
MuxDelete( p_mux );
sout_AccessOutDelete( p_access );
#undef p_mux
}
FREE( p_sout->pp_mux );
#if 0
for( i = 0; i < p_sout->p_sys->i_nb_mux; i++ )
{
FREE( p_sout->p_sys->pp_mux[i] );
}
FREE( p_sout->p_sys->pp_mux );
#endif
/* Free structure */
vlc_object_destroy( p_sout );
}
/*****************************************************************************
* InitInstance: opens appropriate modules
*****************************************************************************/
static int InstanceNewOutput (sout_instance_t *p_sout, char *psz_dest )
{
mrl_t mrl;
char * psz_dup;
#if 0
/* Parse dest string. Syntax : [[<access>][/<mux>]:][<dest>] */
/* This code is identical to input.c:InitThread. FIXME : factorize it ? */
char * psz_dup = strdup( psz_dest );
char * psz_parser = psz_dup;
char * psz_access = "";
char * psz_mux = "";
char * psz_name = "";
/* *** first parse psz_dest */
while( *psz_parser && *psz_parser != ':' )
{
psz_parser++;
}
#if defined( WIN32 ) || defined( UNDER_CE )
if( psz_parser - psz_dup == 1 )
{
msg_Warn( p_sout, "drive letter %c: found in source string",
*psz_dup ) ;
psz_parser = "";
}
#endif
if( !*psz_parser )
{
psz_access = psz_mux = "";
psz_name = psz_dup;
}
else
{
*psz_parser++ = '\0';
/* let's skip '//' */
if( psz_parser[0] == '/' && psz_parser[1] == '/' )
{
psz_parser += 2 ;
}
psz_name = psz_parser ;
/* Come back to parse the access and mux plug-ins */
psz_parser = psz_dup;
if( !*psz_parser )
{
/* No access */
psz_access = "";
}
else if( *psz_parser == '/' )
{
/* No access */
psz_access = "";
psz_parser++;
}
else
{
psz_access = psz_parser;
while( *psz_parser && *psz_parser != '/' )
{
psz_parser++;
}
if( *psz_parser == '/' )
{
*psz_parser++ = '\0';
}
}
if( !*psz_parser )
{
/* No mux */
psz_mux = "";
}
else
{
psz_mux = psz_parser;
}
}
msg_Dbg( p_sout, "access `%s', mux `%s', name `%s'",
psz_access, psz_mux, psz_name );
#endif
mrl_Parse( &mrl, psz_dest );
msg_Dbg( p_sout, "access `%s', mux `%s', name `%s'",
mrl.psz_access, mrl.psz_way, mrl.psz_name );
vlc_mutex_lock( &p_sout->lock );
/* *** create mux *** */
if( InstanceMuxNew( p_sout, mrl.psz_way, mrl.psz_access, mrl.psz_name ) )
{
msg_Err( p_sout, "cannot create sout chain for %s/%s://%s",
mrl.psz_access, mrl.psz_way, mrl.psz_name );
mrl_Clean( &mrl );
vlc_mutex_unlock( &p_sout->lock );
return( VLC_EGENERIC );
}
mrl_Clean( &mrl );
/* *** finish all setup *** */
if( p_sout->psz_sout )
{
p_sout->psz_sout =
realloc( p_sout->psz_sout,
strlen( p_sout->psz_sout ) +2+1+ strlen( psz_dest ) );
strcat( p_sout->psz_sout, "#" );
strcat( p_sout->psz_sout, psz_dest );
}
else
{
p_sout->psz_sout = strdup( psz_dest );
}
psz_dup = strdup( psz_dest );
TAB_APPEND( p_sout->i_nb_dest, p_sout->ppsz_dest, psz_dup );
vlc_mutex_unlock( &p_sout->lock );
msg_Dbg( p_sout, "complete sout `%s'", p_sout->psz_sout );
return VLC_SUCCESS;
}
static int InstanceMuxNew ( sout_instance_t *p_sout,
char *psz_mux, char *psz_access, char *psz_name )
{
sout_access_out_t *p_access;
sout_mux_t *p_mux;
/* *** find and open appropriate access module *** */
p_access =
sout_AccessOutNew( p_sout, psz_access, psz_name );
if( p_access == NULL )
{
msg_Err( p_sout, "no suitable sout access module for `%s/%s://%s'",
psz_access, psz_mux, psz_name );
return( VLC_EGENERIC );
}
/* *** find and open appropriate mux module *** */
p_mux = MuxNew( p_sout, psz_mux, p_access );
if( p_mux == NULL )
{
msg_Err( p_sout, "no suitable sout mux module for `%s/%s://%s'",
psz_access, psz_mux, psz_name );
sout_AccessOutDelete( p_access );
return( VLC_EGENERIC );
}
p_sout->i_preheader = __MAX( p_sout->i_preheader,
p_mux->i_preheader );
TAB_APPEND( p_sout->i_nb_mux, p_sout->pp_mux, p_mux );
return VLC_SUCCESS;
}
/*****************************************************************************
* sout_AccessOutNew: allocate a new access out
*****************************************************************************/
sout_access_out_t *sout_AccessOutNew( sout_instance_t *p_sout,
char *psz_access, char *psz_name )
{
sout_access_out_t *p_access;
if( !( p_access = vlc_object_create( p_sout,
sizeof( sout_access_out_t ) ) ) )
{
msg_Err( p_sout, "out of memory" );
return NULL;
}
p_access->psz_access = strdup( psz_access ? psz_access : "" );
p_access->psz_name = strdup( psz_name ? psz_name : "" );
p_access->p_sout = p_sout;
p_access->p_sys = NULL;
p_access->pf_seek = NULL;
p_access->pf_write = NULL;
p_access->p_module = module_Need( p_access,
"sout access",
p_access->psz_access );;
if( !p_access->p_module )
{
free( p_access->psz_access );
free( p_access->psz_name );
vlc_object_destroy( p_access );
return( NULL );
}
return p_access;
}
/*****************************************************************************
* sout_AccessDelete: delete an access out
*****************************************************************************/
void sout_AccessOutDelete( sout_access_out_t *p_access )
{
if( p_access->p_module )
{
module_Unneed( p_access, p_access->p_module );
}
free( p_access->psz_access );
free( p_access->psz_name );
vlc_object_destroy( p_access );
}
/*****************************************************************************
* sout_AccessSeek:
*****************************************************************************/
int sout_AccessOutSeek( sout_access_out_t *p_access, off_t i_pos )
{
return( p_access->pf_seek( p_access, i_pos ) );
}
/*****************************************************************************
* sout_AccessWrite:
*****************************************************************************/
int sout_AccessOutWrite( sout_access_out_t *p_access, sout_buffer_t *p_buffer )
{
return( p_access->pf_write( p_access, p_buffer ) );
}
static sout_input_t *SoutInputCreate( sout_instance_t *p_sout,
sout_packet_format_t *p_format )
{
sout_input_t *p_input;
p_input = malloc( sizeof( sout_input_t ) );
p_input->p_sout = p_sout;
memcpy( &p_input->input_format,
p_format,
sizeof( sout_packet_format_t ) );
p_input->p_fifo = sout_FifoCreate( p_sout );
p_input->p_sys = NULL;
return p_input;
}
static void SoutInputDestroy( sout_instance_t *p_sout,
sout_input_t *p_input )
{
sout_FifoDestroy( p_sout, p_input->p_fifo );
free( p_input );
}
/*****************************************************************************
* Mux*: create/destroy/manipulate muxer.
* XXX: for now they are private, but I will near export them
* to allow muxer creating private muxer (ogg in avi, flexmux in ts/ps)
*****************************************************************************/
/*****************************************************************************
* MuxNew: allocate a new mux
*****************************************************************************/
static sout_mux_t * MuxNew ( sout_instance_t *p_sout,
char *psz_mux,
sout_access_out_t *p_access )
{
sout_mux_t *p_mux;
p_mux = vlc_object_create( p_sout,
sizeof( sout_mux_t ) );
if( p_mux == NULL )
{
msg_Err( p_sout, "out of memory" );
return NULL;
}
p_mux->p_sout = p_sout;
p_mux->psz_mux = strdup( psz_mux);
p_mux->p_access = p_access;
p_mux->i_preheader = 0;
p_mux->pf_capacity = NULL;
p_mux->pf_addstream = NULL;
p_mux->pf_delstream = NULL;
p_mux->pf_mux = NULL;
p_mux->i_nb_inputs = 0;
p_mux->pp_inputs = NULL;
p_mux->p_sys = NULL;
p_mux->p_module = module_Need( p_mux,
"sout mux",
p_mux->psz_mux );
if( p_mux->p_module == NULL )
{
FREE( p_mux->psz_mux );
vlc_object_destroy( p_mux );
return NULL;
}
/* *** probe mux capacity *** */
if( p_mux->pf_capacity )
{
int b_answer;
if( p_mux->pf_capacity( p_mux,
SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME,
NULL, (void*)&b_answer ) != SOUT_MUX_CAP_ERR_OK )
{
b_answer = VLC_FALSE;
}
if( b_answer )
{
msg_Dbg( p_sout, "muxer support adding stream at any time" );
p_mux->b_add_stream_any_time = VLC_TRUE;
p_mux->b_waiting_stream = VLC_FALSE;
}
else
{
p_mux->b_add_stream_any_time = VLC_FALSE;
p_mux->b_waiting_stream = VLC_TRUE;
}
}
else
{
p_mux->b_add_stream_any_time = VLC_FALSE;
p_mux->b_waiting_stream = VLC_TRUE;
}
p_mux->i_add_stream_start = -1;
return p_mux;
}
static void MuxDelete ( sout_mux_t *p_mux )
{
if( p_mux->p_module )
{
module_Unneed( p_mux, p_mux->p_module );
}
free( p_mux->psz_mux );
vlc_object_destroy( p_mux );
}
static sout_input_t *MuxAddStream ( sout_mux_t *p_mux,
sout_packet_format_t *p_format )
{
sout_input_t *p_input;
if( !p_mux->b_add_stream_any_time && !p_mux->b_waiting_stream)
{
msg_Err( p_mux, "cannot add a new stream (unsuported while muxing for this format)" );
return NULL;
}
if( p_mux->i_add_stream_start < 0 )
{
/* we wait for one second */
p_mux->i_add_stream_start = mdate();
}
msg_Dbg( p_mux, "adding a new input" );
/* create a new sout input */
p_input = SoutInputCreate( p_mux->p_sout, p_format );
TAB_APPEND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
if( p_mux->pf_addstream( p_mux, p_input ) < 0 )
{
msg_Err( p_mux, "cannot add this stream" );
MuxDeleteStream( p_mux, p_input );
return( NULL );
}
return( p_input );
}
static void MuxDeleteStream ( sout_mux_t *p_mux,
sout_input_t *p_input )
{
int i_index;
TAB_FIND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input, i_index );
if( i_index >= 0 )
{
if( p_mux->pf_delstream( p_mux, p_input ) < 0 )
{
msg_Err( p_mux, "cannot del this stream from mux" );
}
/* remove the entry */
TAB_REMOVE( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
if( p_mux->i_nb_inputs == 0 )
{
msg_Warn( p_mux, "no more input stream for this mux" );
}
SoutInputDestroy( p_mux->p_sout, p_input );
}
}
static void MuxSendBuffer ( sout_mux_t *p_mux,
sout_input_t *p_input,
sout_buffer_t *p_buffer )
{
sout_FifoPut( p_input->p_fifo, p_buffer );
if( p_mux->b_waiting_stream )
{
if( p_mux->i_add_stream_start > 0 &&
p_mux->i_add_stream_start + (mtime_t)1500000 < mdate() )
{
/* more than 1.5 second, start muxing */
p_mux->b_waiting_stream = VLC_FALSE;
}
else
{
return;
}
}
p_mux->pf_mux( p_mux );
}
/*****************************************************************************
*
*****************************************************************************/
sout_packetizer_input_t *__sout_InputNew( vlc_object_t *p_this,
sout_packet_format_t *p_format )
{
sout_instance_t *p_sout = NULL;
sout_packetizer_input_t *p_input;
int i_try;
int i_mux;
vlc_bool_t b_accepted = VLC_FALSE;
/* search an stream output */
for( i_try = 0; i_try < 12; i_try++ )
{
p_sout = vlc_object_find( p_this, VLC_OBJECT_SOUT, FIND_ANYWHERE );
if( !p_sout )
{
msleep( 100*1000 );
msg_Dbg( p_this, "waiting for sout" );
}
else
{
break;
}
}
if( !p_sout )
{
msg_Err( p_this, "cannot find any stream ouput" );
return( NULL );
}
msg_Dbg( p_sout, "adding a new input" );
/* *** create a packetizer input *** */
p_input = malloc( sizeof( sout_packetizer_input_t ) );
p_input->p_sout = p_sout;
p_input->i_nb_inputs = 0;
p_input->pp_inputs = NULL;
p_input->i_nb_mux = 0;
p_input->pp_mux = NULL;
memcpy( &p_input->input_format,
p_format,
sizeof( sout_packet_format_t ) );
if( p_format->i_fourcc == VLC_FOURCC( 'n', 'u', 'l', 'l' ) )
{
vlc_object_release( p_sout );
return p_input;
}
vlc_mutex_lock( &p_sout->lock );
/* *** add this input to all muxers *** */
for( i_mux = 0; i_mux < p_sout->i_nb_mux; i_mux++ )
{
sout_input_t *p_mux_input;
#define p_mux p_sout->pp_mux[i_mux]
p_mux_input = MuxAddStream( p_mux, p_format );
if( p_mux_input )
{
TAB_APPEND( p_input->i_nb_inputs, p_input->pp_inputs, p_mux_input );
TAB_APPEND( p_input->i_nb_mux, p_input->pp_mux, p_mux );
b_accepted = VLC_TRUE;
}
#undef p_mux
}
if( !b_accepted )
{
/* all muxer refuse this stream, so delete it */
free( p_input );
vlc_mutex_unlock( &p_sout->lock );
vlc_object_release( p_sout );
return( NULL );
}
TAB_APPEND( p_sout->i_nb_inputs, p_sout->pp_inputs, p_input );
vlc_mutex_unlock( &p_sout->lock );
vlc_object_release( p_sout );
return( p_input );
}
int sout_InputDelete( sout_packetizer_input_t *p_input )
{
sout_instance_t *p_sout = p_input->p_sout;
int i_input;
msg_Dbg( p_sout, "removing an input" );
vlc_mutex_lock( &p_sout->lock );
/* *** remove this input to all muxers *** */
for( i_input = 0; i_input < p_input->i_nb_inputs; i_input++ )
{
MuxDeleteStream( p_input->pp_mux[i_input], p_input->pp_inputs[i_input] );
}
TAB_REMOVE( p_sout->i_nb_inputs, p_sout->pp_inputs, p_input );
free( p_input->pp_inputs );
free( p_input->pp_mux );
free( p_input );
vlc_mutex_unlock( &p_sout->lock );
return( 0 );
}
int sout_InputSendBuffer( sout_packetizer_input_t *p_input, sout_buffer_t *p_buffer )
{
// sout_instance_sys_t *p_sys = p_input->p_sout->p_sys;
/* msg_Dbg( p_input->p_sout,
"send buffer, size:%d", p_buffer->i_size ); */
if( p_input->input_format.i_fourcc != VLC_FOURCC( 'n', 'u', 'l', 'l' ) &&
p_input->i_nb_inputs > 0 )
{
int i;
vlc_mutex_lock( &p_input->p_sout->lock );
for( i = 0; i < p_input->i_nb_inputs - 1; i++ )
{
sout_buffer_t *p_dup;
p_dup = sout_BufferDuplicate( p_input->p_sout, p_buffer );
MuxSendBuffer( p_input->pp_mux[i],
p_input->pp_inputs[i],
p_dup );
}
MuxSendBuffer( p_input->pp_mux[p_input->i_nb_inputs-1],
p_input->pp_inputs[p_input->i_nb_inputs-1],
p_buffer );
vlc_mutex_unlock( &p_input->p_sout->lock );
}
else
{
sout_BufferDelete( p_input->p_sout, p_buffer );
}
return( 0 );
}
sout_fifo_t *sout_FifoCreate( sout_instance_t *p_sout )
{
sout_fifo_t *p_fifo;
if( !( p_fifo = malloc( sizeof( sout_fifo_t ) ) ) )
{
return( NULL );
}
vlc_mutex_init( p_sout, &p_fifo->lock );
vlc_cond_init ( p_sout, &p_fifo->wait );
p_fifo->i_depth = 0;
p_fifo->p_first = NULL;
p_fifo->pp_last = &p_fifo->p_first;
return( p_fifo );
}
void sout_FifoFree( sout_instance_t *p_sout, sout_fifo_t *p_fifo )
{
sout_buffer_t *p_buffer;
vlc_mutex_lock( &p_fifo->lock );
p_buffer = p_fifo->p_first;
while( p_buffer )
{
sout_buffer_t *p_next;
p_next = p_buffer->p_next;
sout_BufferDelete( p_sout, p_buffer );
p_buffer = p_next;
}
vlc_mutex_unlock( &p_fifo->lock );
return;
}
void sout_FifoDestroy( sout_instance_t *p_sout, sout_fifo_t *p_fifo )
{
sout_FifoFree( p_sout, p_fifo );
vlc_mutex_destroy( &p_fifo->lock );
vlc_cond_destroy ( &p_fifo->wait );
free( p_fifo );
}
void sout_FifoPut( sout_fifo_t *p_fifo, sout_buffer_t *p_buffer )
{
vlc_mutex_lock( &p_fifo->lock );
do
{
*p_fifo->pp_last = p_buffer;
p_fifo->pp_last = &p_buffer->p_next;
p_fifo->i_depth++;
p_buffer = p_buffer->p_next;
} while( p_buffer );
/* warm there is data in this fifo */
vlc_cond_signal( &p_fifo->wait );
vlc_mutex_unlock( &p_fifo->lock );
}
sout_buffer_t *sout_FifoGet( sout_fifo_t *p_fifo )
{
sout_buffer_t *p_buffer;
vlc_mutex_lock( &p_fifo->lock );
if( p_fifo->p_first == NULL )
{
vlc_cond_wait( &p_fifo->wait, &p_fifo->lock );
}
p_buffer = p_fifo->p_first;
p_fifo->p_first = p_buffer->p_next;
p_fifo->i_depth--;
if( p_fifo->p_first == NULL )
{
p_fifo->pp_last = &p_fifo->p_first;
}
vlc_mutex_unlock( &p_fifo->lock );
p_buffer->p_next = NULL;
return( p_buffer );
}
sout_buffer_t *sout_FifoShow( sout_fifo_t *p_fifo )
{
sout_buffer_t *p_buffer;
vlc_mutex_lock( &p_fifo->lock );
if( p_fifo->p_first == NULL )
{
vlc_cond_wait( &p_fifo->wait, &p_fifo->lock );
}
p_buffer = p_fifo->p_first;
vlc_mutex_unlock( &p_fifo->lock );
return( p_buffer );
}
sout_buffer_t *sout_BufferNew( sout_instance_t *p_sout, size_t i_size )
{
sout_buffer_t *p_buffer;
size_t i_preheader;
#ifdef DEBUG_BUFFER
msg_Dbg( p_sout, "allocating an new buffer, size:%d", (uint32_t)i_size );
#endif
p_buffer = malloc( sizeof( sout_buffer_t ) );
i_preheader = p_sout->i_preheader;
if( i_size > 0 )
{
p_buffer->p_allocated_buffer = malloc( i_size + i_preheader );
p_buffer->p_buffer = p_buffer->p_allocated_buffer + i_preheader;
}
else
{
p_buffer->p_allocated_buffer = NULL;
p_buffer->p_buffer = NULL;
}
p_buffer->i_allocated_size = i_size + i_preheader;
p_buffer->i_buffer_size = i_size;
p_buffer->i_size = i_size;
p_buffer->i_length = 0;
p_buffer->i_dts = 0;
p_buffer->i_pts = 0;
p_buffer->i_bitrate = 0;
p_buffer->i_flags = 0x0000;
p_buffer->p_next = NULL;
return( p_buffer );
}
int sout_BufferRealloc( sout_instance_t *p_sout, sout_buffer_t *p_buffer, size_t i_size )
{
size_t i_preheader;
#ifdef DEBUG_BUFFER
msg_Dbg( p_sout,
"realloc buffer old size:%d new size:%d",
(uint32_t)p_buffer->i_allocated_size,
(uint32_t)i_size );
#endif
i_preheader = p_buffer->p_buffer - p_buffer->p_allocated_buffer;
if( !( p_buffer->p_allocated_buffer = realloc( p_buffer->p_allocated_buffer, i_size + i_preheader ) ) )
{
msg_Err( p_sout, "realloc failed" );
p_buffer->i_allocated_size = 0;
p_buffer->i_buffer_size = 0;
p_buffer->i_size = 0;
p_buffer->p_buffer = NULL;
return( -1 );
}
p_buffer->p_buffer = p_buffer->p_allocated_buffer + i_preheader;
p_buffer->i_allocated_size = i_size + i_preheader;
p_buffer->i_buffer_size = i_size;
return( 0 );
}
int sout_BufferReallocFromPreHeader( sout_instance_t *p_sout, sout_buffer_t *p_buffer, size_t i_size )
{
size_t i_preheader;
i_preheader = p_buffer->p_buffer - p_buffer->p_allocated_buffer;
if( i_preheader < i_size )
{
return( -1 );
}
p_buffer->p_buffer -= i_size;
p_buffer->i_size += i_size;
p_buffer->i_buffer_size += i_size;
return( 0 );
}
int sout_BufferDelete( sout_instance_t *p_sout, sout_buffer_t *p_buffer )
{
#ifdef DEBUG_BUFFER
msg_Dbg( p_sout, "freeing buffer, size:%d", p_buffer->i_size );
#endif
if( p_buffer->p_allocated_buffer )
{
free( p_buffer->p_allocated_buffer );
}
free( p_buffer );
return( 0 );
}
sout_buffer_t *sout_BufferDuplicate( sout_instance_t *p_sout,
sout_buffer_t *p_buffer )
{
sout_buffer_t *p_dup;
p_dup = sout_BufferNew( p_sout, p_buffer->i_size );
p_dup->i_bitrate= p_buffer->i_bitrate;
p_dup->i_dts = p_buffer->i_dts;
p_dup->i_pts = p_buffer->i_pts;
p_dup->i_length = p_buffer->i_length;
p_dup->i_flags = p_buffer->i_flags;
p_sout->p_vlc->pf_memcpy( p_dup->p_buffer, p_buffer->p_buffer, p_buffer->i_size );
return( p_dup );
}
void sout_BufferChain( sout_buffer_t **pp_chain,
sout_buffer_t *p_buffer )
{
if( *pp_chain == NULL )
{
*pp_chain = p_buffer;
}
else if( p_buffer != NULL )
{
sout_buffer_t *p = *pp_chain;
while( p->p_next )
{
p = p->p_next;
}
p->p_next = p_buffer;
}
}
#if 0
static int mrl_ParseOptions( mrl_option_t **pp_opt, char *psz_options )
{
mrl_option_t **pp_last = pp_opt;
char *psz_parser = strdup( psz_options );
*pp_last = NULL;
if( *psz_parser == '=' )
{
free( psz_parser );
return( VLC_EGENERIC );
}
if( *psz_parser == '{' )
{
free( psz_parser );
}
for( ;; )
{
char *psz_end;
mrl_option_t opt;
/* skip space */
while( *psz_parser && ( *psz_parser == ' ' || *psz_parser == '\t' || *psz_parser == ';' ) )
{
psz_parser++;
}
if( ( psz_end = strchr( psz_parser, '=' ) ) != NULL )
{
opt.p_next = NULL;
while( psz_end > psz_parser && ( *psz_end == ' ' || *psz_end == '\t' ) )
{
psz_end--;
}
if( psz_end - psz_parser <= 0 )
{
return( VLC_EGENERIC );
}
*psz_end = '\0';
opt.psz_name = strdup( psz_parser );
psz_parser = psz_end + 1;
if( ( psz_end = strchr( psz_parser, ';' ) ) == NULL &&
( psz_end = strchr( psz_parser, '}' ) ) == NULL )
{
psz_end = psz_parser + strlen( psz_parser ) + 1;
}
opt.psz_value = strdup( psz_parser );
fprintf( stderr, "option: name=`%s' value=`%s'\n",
opt.psz_name,
opt.psz_value );
psz_parser = psz_end + 1;
*pp_last = malloc( sizeof( mrl_option_t ) );
**pp_last = opt;
}
else
{
break;
}
}
}
#endif
static int mrl_Parse( mrl_t *p_mrl, char *psz_mrl )
{
char * psz_dup = strdup( psz_mrl );
char * psz_parser = psz_dup;
char * psz_access = "";
char * psz_way = "";
char * psz_name = "";
/* *** first parse psz_dest */
while( *psz_parser && *psz_parser != ':' )
{
if( *psz_parser == '{' )
{
while( *psz_parser && *psz_parser != '}' )
{
psz_parser++;
}
if( *psz_parser )
{
psz_parser++;
}
}
else
{
psz_parser++;
}
}
#if defined( WIN32 ) || defined( UNDER_CE )
if( psz_parser - psz_dup == 1 )
{
/* msg_Warn( p_sout, "drive letter %c: found in source string",
*psz_dup ) ; */
psz_parser = "";
}
#endif
if( !*psz_parser )
{
psz_access = psz_way = "";
psz_name = psz_dup;
}
else
{
*psz_parser++ = '\0';
/* let's skip '//' */
if( psz_parser[0] == '/' && psz_parser[1] == '/' )
{
psz_parser += 2 ;
}
psz_name = psz_parser ;
/* Come back to parse the access and mux plug-ins */
psz_parser = psz_dup;
if( !*psz_parser )
{
/* No access */
psz_access = "";
}
else if( *psz_parser == '/' )
{
/* No access */
psz_access = "";
psz_parser++;
}
else
{
psz_access = psz_parser;
while( *psz_parser && *psz_parser != '/' )
{
if( *psz_parser == '{' )
{
while( *psz_parser && *psz_parser != '}' )
{
psz_parser++;
}
if( *psz_parser )
{
psz_parser++;
}
}
else
{
psz_parser++;
}
}
if( *psz_parser == '/' )
{
*psz_parser++ = '\0';
}
}
if( !*psz_parser )
{
/* No mux */
psz_way = "";
}
else
{
psz_way = psz_parser;
}
}
#if 0
if( ( psz_parser = strchr( psz_access, '{' ) ) != NULL )
{
mrl_ParseOptions( &p_mrl->p_access_options, psz_parser );
*psz_parser = '\0';
}
if( ( psz_parser = strchr( psz_way, '{' ) ) != NULL )
{
mrl_ParseOptions( &p_mrl->p_way_options, psz_parser );
*psz_parser = '\0';
}
#endif
p_mrl->p_access_options = NULL;
p_mrl->p_way_options = NULL;
p_mrl->psz_access = strdup( psz_access );
p_mrl->psz_way = strdup( psz_way );
p_mrl->psz_name = strdup( psz_name );
free( psz_dup );
return( VLC_SUCCESS );
}
/* mrl_Clean: clean p_mrl after a call to mrl_Parse */
static void mrl_Clean( mrl_t *p_mrl )
{
FREE( p_mrl->psz_access );
FREE( p_mrl->psz_way );
FREE( p_mrl->psz_name );
}