/*****************************************************************************
* stream_output.c : stream output module
*****************************************************************************
* Copyright (C) 2002-2007 VLC authors and VideoLAN
*
* 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 Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include <vlc_common.h>
#include <vlc_arrays.h>
#include <vlc_configuration.h>
#include <stdlib.h> /* free() */
#include <stdio.h> /* sprintf() */
#include <string.h>
#include <vlc_sout.h>
#include "stream_output.h"
#include <vlc_meta.h>
#include <vlc_block.h>
#include <vlc_frame.h>
#include <vlc_codec.h>
#include <vlc_modules.h>
#include "input/input_interface.h"
#include "clock/clock.h"
#undef DEBUG_BUFFER
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static char *sout_stream_url_to_chain( bool, const char * );
/*
* Generic MRL parser
*
*/
typedef struct
{
char *psz_access;
char *psz_way;
char *psz_name;
} mrl_t;
/* mrl_Parse: parse psz_mrl and fill p_mrl */
static int mrl_Parse( mrl_t *p_mrl, const char *psz_mrl );
/* mrl_Clean: clean p_mrl after a call to mrl_Parse */
static void mrl_Clean( mrl_t *p_mrl );
#undef sout_NewInstance
/*****************************************************************************
* sout_NewInstance: creates a new stream output instance
*****************************************************************************/
sout_stream_t *sout_NewInstance( vlc_object_t *p_parent, const char *psz_dest )
{
sout_stream_t *p_sout;
char *psz_chain;
assert( psz_dest != NULL );
if( psz_dest[0] == '#' )
{
psz_chain = strdup( &psz_dest[1] );
}
else
{
psz_chain = sout_stream_url_to_chain(
var_InheritBool(p_parent, "sout-display"), psz_dest );
}
if(!psz_chain)
return NULL;
msg_Dbg(p_parent, "creating stream output chain `%s'", psz_chain);
p_sout = sout_StreamChainNew(p_parent, psz_chain, NULL);
if (p_sout == NULL)
msg_Err(p_parent, "failed to create stream output chain `%s'",
psz_chain);
free(psz_chain);
return p_sout;
}
/*****************************************************************************
* Packetizer/Input
*****************************************************************************/
struct sout_packetizer_input_t
{
void *id;
bool b_flushed;
};
sout_packetizer_input_t *sout_InputNew( sout_stream_t *p_sout,
const es_format_t *p_fmt,
const char *es_id)
{
sout_packetizer_input_t *p_input;
/* *** create a packetizer input *** */
if( !p_fmt->i_codec || !(p_input = malloc(sizeof(sout_packetizer_input_t))) )
return NULL;
p_input->b_flushed = false;
msg_Dbg(p_sout, "adding an output ES for `%4.4s` (%p)",
(char *)&p_fmt->i_codec, (void *)p_input);
/* *** add it to the stream chain */
p_input->id = sout_StreamIdAdd( p_sout, p_fmt, es_id);
if( p_input->id == NULL )
{
msg_Warn(p_sout, "failed to add output ES (%p)", (void *)p_input);
free( p_input );
p_input = NULL;
}
return( p_input );
}
/*****************************************************************************
*
*****************************************************************************/
int sout_InputDelete( sout_stream_t *p_sout,
sout_packetizer_input_t *p_input )
{
msg_Dbg(p_sout, "removing an output ES (%p)", (void *)p_input);
sout_StreamIdDel( p_sout, p_input->id );
free( p_input );
return( VLC_SUCCESS);
}
static int sout_InputControlVa( sout_stream_t *p_sout,
sout_packetizer_input_t *p_input,
int i_query, va_list args )
{
if( i_query == SOUT_INPUT_SET_SPU_HIGHLIGHT )
{
const vlc_spu_highlight_t *spu_hl = va_arg( args, const vlc_spu_highlight_t * );
return sout_StreamControl( p_sout, SOUT_STREAM_ID_SPU_HIGHLIGHT,
p_input->id, spu_hl );
}
return VLC_EGENERIC;
}
int sout_InputControl( sout_stream_t *p_sout,
sout_packetizer_input_t *p_input, int i_query, ... )
{
va_list args;
int i_result;
va_start( args, i_query );
i_result = sout_InputControlVa( p_sout, p_input, i_query, args );
va_end( args );
return i_result;
}
void sout_InputFlush( sout_stream_t *p_sout,
sout_packetizer_input_t *p_input )
{
sout_StreamFlush( p_sout, p_input->id );
p_input->b_flushed = true;
}
/*****************************************************************************
*
*****************************************************************************/
int sout_InputSendBuffer( sout_stream_t *p_sout,
sout_packetizer_input_t *p_input,
vlc_frame_t *frame )
{
if( p_input->b_flushed )
{
frame->i_flags |= VLC_FRAME_FLAG_DISCONTINUITY;
p_input->b_flushed = false;
}
return sout_StreamIdSend( p_sout, p_input->id, frame );
}
#undef sout_AccessOutNew
/*****************************************************************************
* sout_AccessOutNew: allocate a new access out
*****************************************************************************/
sout_access_out_t *sout_AccessOutNew( vlc_object_t *p_sout,
const char *psz_access, const char *psz_name )
{
sout_access_out_t *p_access;
char *psz_next;
p_access = vlc_custom_create( p_sout, sizeof( *p_access ), "access out" );
if( !p_access )
return NULL;
psz_next = config_ChainCreate( &p_access->psz_access, &p_access->p_cfg,
psz_access );
free( psz_next );
p_access->psz_path = strdup( psz_name ? psz_name : "" );
if( unlikely(p_access->psz_path == NULL) )
goto error;
p_access->p_sys = NULL;
p_access->pf_seek = NULL;
p_access->pf_read = NULL;
p_access->pf_write = NULL;
p_access->pf_control = NULL;
p_access->p_module = NULL;
p_access->p_module =
module_need( p_access, "sout access", p_access->psz_access, true );
if( !p_access->p_module )
{
free( p_access->psz_path );
error:
free( p_access->psz_access );
vlc_object_delete(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 );
config_ChainDestroy( p_access->p_cfg );
free( p_access->psz_path );
vlc_object_delete(p_access);
}
/*****************************************************************************
* sout_AccessSeek:
*****************************************************************************/
int sout_AccessOutSeek( sout_access_out_t *p_access, uint64_t i_pos )
{
if (p_access->pf_seek == NULL)
return VLC_EGENERIC;
return p_access->pf_seek( p_access, i_pos );
}
/*****************************************************************************
* sout_AccessRead:
*****************************************************************************/
ssize_t sout_AccessOutRead( sout_access_out_t *p_access, block_t *p_buffer )
{
return( p_access->pf_read ?
p_access->pf_read( p_access, p_buffer ) : VLC_EGENERIC );
}
/*****************************************************************************
* sout_AccessWrite:
*****************************************************************************/
ssize_t sout_AccessOutWrite( sout_access_out_t *p_access, block_t *p_buffer )
{
return p_access->pf_write( p_access, p_buffer );
}
/**
* sout_AccessOutControl
*/
int sout_AccessOutControl (sout_access_out_t *access, int query, ...)
{
va_list ap;
int ret;
va_start (ap, query);
if (access->pf_control)
ret = access->pf_control (access, query, ap);
else
ret = VLC_EGENERIC;
va_end (ap);
return ret;
}
/*****************************************************************************
* sout_MuxNew: create a new mux
*****************************************************************************/
sout_mux_t *sout_MuxNew( sout_access_out_t *p_access, const char *psz_mux )
{
sout_mux_t *p_mux;
char *psz_next;
p_mux = vlc_custom_create( p_access, sizeof( *p_mux ), "mux" );
if( p_mux == NULL )
return NULL;
psz_next = config_ChainCreate( &p_mux->psz_mux, &p_mux->p_cfg, psz_mux );
free( psz_next );
p_mux->p_access = p_access;
p_mux->pf_control = 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 = NULL;
p_mux->b_add_stream_any_time = false;
p_mux->b_waiting_stream = true;
p_mux->i_add_stream_start = VLC_TICK_INVALID;
p_mux->p_module =
module_need( p_mux, "sout mux", p_mux->psz_mux, true );
if( p_mux->p_module == NULL )
{
FREENULL( p_mux->psz_mux );
vlc_object_delete(p_mux);
return NULL;
}
/* *** probe mux capacity *** */
if( p_mux->pf_control )
{
int b_answer = false;
if( sout_MuxControl( p_mux, MUX_CAN_ADD_STREAM_WHILE_MUXING,
&b_answer ) )
{
b_answer = false;
}
if( b_answer )
{
msg_Dbg( p_access, "muxer support adding stream at any time" );
p_mux->b_add_stream_any_time = true;
p_mux->b_waiting_stream = true;
}
}
return p_mux;
}
/*****************************************************************************
* sout_MuxDelete:
*****************************************************************************/
void sout_MuxDelete( sout_mux_t *p_mux )
{
if( p_mux->p_module )
{
module_unneed( p_mux, p_mux->p_module );
}
free( p_mux->psz_mux );
config_ChainDestroy( p_mux->p_cfg );
vlc_object_delete(p_mux);
}
/*****************************************************************************
* sout_MuxAddStream:
*****************************************************************************/
sout_input_t *sout_MuxAddStream( sout_mux_t *p_mux, const es_format_t *p_fmt )
{
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 (unsupported while muxing "
"to this format). You can try increasing sout-mux-caching value" );
return NULL;
}
msg_Dbg( p_mux, "adding a new input" );
/* create a new sout input */
p_input = malloc( sizeof( sout_input_t ) );
if( !p_input )
return NULL;
// FIXME: remove either fmt or p_fmt...
es_format_Copy( &p_input->fmt, p_fmt );
p_input->p_fmt = &p_input->fmt;
p_input->p_fifo = block_FifoNew();
p_input->p_sys = NULL;
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" );
TAB_REMOVE( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
block_FifoRelease( p_input->p_fifo );
es_format_Clean( &p_input->fmt );
free( p_input );
return NULL;
}
return p_input;
}
/*****************************************************************************
* sout_MuxDeleteStream:
*****************************************************************************/
void sout_MuxDeleteStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
int i_index;
if( p_mux->b_waiting_stream )
{
/* We stop waiting, and call the muxer for taking care of the data
* before we remove this es */
p_mux->b_waiting_stream = false;
p_mux->pf_mux( p_mux );
}
TAB_FIND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input, i_index );
if( i_index >= 0 )
{
/* remove the entry */
TAB_ERASE( p_mux->i_nb_inputs, p_mux->pp_inputs, i_index );
p_mux->pf_delstream( p_mux, p_input );
if( p_mux->i_nb_inputs == 0 )
{
msg_Warn( p_mux, "no more input streams for this mux" );
}
block_FifoRelease( p_input->p_fifo );
es_format_Clean( &p_input->fmt );
free( p_input );
}
}
/*****************************************************************************
* sout_MuxSendBuffer:
*****************************************************************************/
int sout_MuxSendBuffer( sout_mux_t *p_mux, sout_input_t *p_input,
block_t *p_buffer )
{
vlc_tick_t i_dts = p_buffer->i_dts;
block_FifoPut( p_input->p_fifo, p_buffer );
if( i_dts == VLC_TICK_INVALID )
i_dts = p_buffer->i_pts;
if( p_mux->b_waiting_stream && i_dts != VLC_TICK_INVALID )
{
const vlc_tick_t i_caching = VLC_TICK_FROM_MS(var_InheritInteger( p_mux, "sout-mux-caching" ));
if( p_mux->i_add_stream_start == VLC_TICK_INVALID )
p_mux->i_add_stream_start = i_dts;
/* Wait until we have enough data before muxing */
if( llabs( i_dts - p_mux->i_add_stream_start ) < i_caching )
return VLC_SUCCESS;
p_mux->b_waiting_stream = false;
}
return p_mux->pf_mux( p_mux );
}
void sout_MuxFlush( sout_mux_t *p_mux, sout_input_t *p_input )
{
VLC_UNUSED(p_mux);
block_FifoEmpty( p_input->p_fifo );
}
/*****************************************************************************
* sout_MuxGetStream: find stream to be muxed
*****************************************************************************/
int sout_MuxGetStream( sout_mux_t *p_mux, unsigned i_blocks, vlc_tick_t *pi_dts )
{
vlc_tick_t i_dts = VLC_TICK_MAX;
int i_stream = -1;
assert( i_blocks > 0 );
for( int i = 0; i < p_mux->i_nb_inputs; i++ )
{
sout_input_t *p_input = p_mux->pp_inputs[i];
block_t *p_data;
if( block_FifoCount( p_input->p_fifo ) < i_blocks )
{
if( (!p_mux->b_add_stream_any_time) &&
(p_input->p_fmt->i_cat != SPU_ES ) )
{
return -1;
}
/* FIXME: SPU muxing */
continue;
}
p_data = block_FifoShow( p_input->p_fifo );
if( p_data->i_dts < i_dts )
{
i_stream = i;
i_dts = p_data->i_dts;
}
}
if( pi_dts ) *pi_dts = i_dts;
return i_stream;
}
/*****************************************************************************
*
*****************************************************************************/
static int mrl_Parse( mrl_t *p_mrl, const char *psz_mrl )
{
char * psz_dup = strdup( psz_mrl );
char * psz_parser = psz_dup;
const char * psz_access;
const 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( __OS2__ )
if( psz_parser - psz_dup == 1 )
{
/* msg_Warn( p_sout, "drive letter %c: found in source string",
*psz_dup ) ; */
*psz_parser = '\0';
}
#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;
}
}
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 )
{
FREENULL( p_mrl->psz_access );
FREENULL( p_mrl->psz_way );
FREENULL( p_mrl->psz_name );
}
/****************************************************************************
****************************************************************************
**
**
**
****************************************************************************
****************************************************************************/
struct sout_stream_private {
sout_stream_t stream;
vlc_mutex_t lock;
};
struct vlc_sout_clock_bus {
struct {
vlc_clock_main_t *bus;
vlc_clock_t *input;
} clocks;
};
#define sout_stream_priv(s) \
container_of(s, struct sout_stream_private, stream)
static void sout_StreamLock(sout_stream_t *s)
{
vlc_mutex_lock(&sout_stream_priv(s)->lock);
}
static void sout_StreamUnlock(sout_stream_t *s)
{
vlc_mutex_unlock(&sout_stream_priv(s)->lock);
}
void *sout_StreamIdAdd(sout_stream_t *s, const es_format_t *fmt, const char *es_id)
{
void *id;
assert(es_id != NULL);
sout_StreamLock(s);
id = s->ops->add(s, fmt, es_id);
sout_StreamUnlock(s);
return id;
}
void sout_StreamIdDel(sout_stream_t *s, void *id)
{
sout_StreamLock(s);
s->ops->del(s, id);
sout_StreamUnlock(s);
}
int sout_StreamIdSend(sout_stream_t *s, void *id, vlc_frame_t *f)
{
int val;
assert(f->p_next == NULL);
sout_StreamLock(s);
val = s->ops->send(s, id, f);
sout_StreamUnlock(s);
return val;
}
void sout_StreamFlush(sout_stream_t *s, void *id)
{
if (s->ops->flush != NULL)
{
sout_StreamLock(s);
s->ops->flush(s, id);
sout_StreamUnlock(s);
}
}
void sout_StreamSetPCR(sout_stream_t *s, vlc_tick_t pcr)
{
if (s->ops->set_pcr != NULL)
{
sout_StreamLock(s);
s->ops->set_pcr(s, pcr);
sout_StreamUnlock(s);
}
}
int sout_StreamControlVa(sout_stream_t *s, int i_query, va_list args)
{
int val = VLC_EGENERIC;
if (s->ops->control != NULL)
{
sout_StreamLock(s);
val = s->ops->control(s, i_query, args);
sout_StreamUnlock(s);
}
return val;
}
/* Destroy a "stream_out" module */
static void sout_StreamDelete( sout_stream_t *p_stream )
{
char *psz_name = p_stream->psz_name;
msg_Dbg( p_stream, "destroying chain... (name=%s)", psz_name ? psz_name
: "(null)" );
if (p_stream->ops != NULL && p_stream->ops->close != NULL)
p_stream->ops->close(p_stream);
FREENULL( p_stream->psz_name );
config_ChainDestroy( p_stream->p_cfg );
msg_Dbg( p_stream, "destroying chain done" );
vlc_objres_clear(VLC_OBJECT(p_stream));
vlc_object_delete(p_stream);
}
struct vlc_sout_clock_bus *sout_ClockMainCreate(sout_stream_t *p_stream)
{
struct vlc_tracer *tracer = vlc_object_get_tracer( &p_stream->obj );
struct vlc_sout_clock_bus *bus = malloc(sizeof *bus);
if (bus == NULL)
return NULL;
bus->clocks.bus = vlc_clock_main_New(p_stream->obj.logger, tracer);
if (bus->clocks.bus == NULL)
goto error_bus;
vlc_clock_main_Lock(bus->clocks.bus);
bus->clocks.input = vlc_clock_main_CreateInputSlave(bus->clocks.bus);
vlc_clock_main_Unlock(bus->clocks.bus);
if (bus->clocks.input == NULL)
goto error_input;
return bus;
error_input:
vlc_clock_main_Delete(bus->clocks.bus);
error_bus:
free(bus);
return NULL;
}
void sout_ClockMainDelete(struct vlc_sout_clock_bus *bus)
{
vlc_clock_Delete(bus->clocks.input);
vlc_clock_main_Delete(bus->clocks.bus);
free(bus);
}
void sout_ClockMainSetFirstPcr(struct vlc_sout_clock_bus *bus, vlc_tick_t pcr )
{
vlc_clock_main_Lock(bus->clocks.bus);
vlc_clock_main_Reset(bus->clocks.bus);
vlc_clock_main_SetFirstPcr(bus->clocks.bus, vlc_tick_now(), pcr);
vlc_clock_main_Unlock(bus->clocks.bus);
}
vlc_clock_t *sout_ClockCreate(struct vlc_sout_clock_bus *bus,
const es_format_t *fmt)
{
vlc_clock_main_Lock(bus->clocks.bus);
vlc_clock_t *clock =
vlc_clock_main_CreateSlave(bus->clocks.bus, NULL, fmt->i_cat,
NULL, NULL);
vlc_clock_main_Unlock(bus->clocks.bus);
return clock;
}
void sout_ClockDelete( vlc_clock_t *clock )
{
vlc_clock_Delete( clock );
}
/* Destroy a "stream_out" modules chain
*
* p_first is the first module to be destroyed in the chain
* p_last is the last module to be destroyed
* if NULL, all modules are destroyed
* if not NULL, modules following it must be destroyed separately
*/
void sout_StreamChainDelete(sout_stream_t *p_first, sout_stream_t *end)
{
while (p_first != end)
{
sout_stream_t *p_next = p_first->p_next;
sout_StreamDelete(p_first);
p_first = p_next;
}
}
static sout_stream_t *sout_StreamNewEmpty(vlc_object_t *parent, char *name)
{
assert(name != NULL);
struct sout_stream_private *priv =
vlc_custom_create(parent, sizeof(*priv), "stream out");
if (unlikely(priv == NULL))
return NULL;
vlc_mutex_init(&priv->lock);
priv->stream.psz_name = name;
priv->stream.p_cfg = NULL;
priv->stream.p_next = NULL;
priv->stream.ops = NULL;
priv->stream.p_sys = NULL;
return &priv->stream;
}
sout_stream_t *sout_StreamNew(vlc_object_t *parent, const char *config)
{
assert(config != NULL);
char *name;
config_chain_t *parsed_conf;
char *leftover = config_ChainCreate(&name, &parsed_conf, config);
free(leftover);
sout_stream_t *stream = sout_StreamNewEmpty(parent, name);
if (unlikely(stream == NULL))
return NULL;
stream->p_cfg = parsed_conf;
return stream;
}
/* Create a "stream_out" module, which may forward its ES to p_next module */
/*
* XXX name and p_cfg are used (-> do NOT free them)
*/
static sout_stream_t *sout_StreamNewModule( vlc_object_t *parent, char *psz_name,
config_chain_t *p_cfg, sout_stream_t *p_next)
{
const char *cap = (p_next != NULL) ? "sout filter" : "sout output";
sout_stream_t *p_stream = sout_StreamNewEmpty(parent, psz_name);
if (unlikely(p_stream == NULL))
return NULL;
p_stream->p_cfg = p_cfg;
p_stream->p_next = p_next;
msg_Dbg( p_stream, "stream=`%s'", p_stream->psz_name );
module_t *module = module_need(p_stream, cap, p_stream->psz_name, true);
if (module == NULL)
{
/* those must be freed by the caller if creation failed */
p_stream->psz_name = NULL;
p_stream->p_cfg = NULL;
sout_StreamDelete( p_stream );
return NULL;
}
return p_stream;
}
sout_stream_t *sout_StreamChainNew(vlc_object_t *parent, const char *psz_chain,
sout_stream_t *sink)
{
if(!psz_chain || !*psz_chain)
{
return sink;
}
char *psz_parser = strdup(psz_chain);
if(!psz_parser)
return NULL;
vlc_array_t cfg, name;
vlc_array_init(&cfg);
vlc_array_init(&name);
/* parse chain */
while(psz_parser)
{
config_chain_t *p_cfg;
char *psz_name;
char *psz_rest_chain = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
free( psz_parser );
psz_parser = psz_rest_chain;
vlc_array_append_or_abort(&cfg, p_cfg);
vlc_array_append_or_abort(&name, psz_name);
}
/* Instantiate modules from back to front of chain */
sout_stream_t *front = sink;
size_t i = vlc_array_count(&name);
while(i--)
{
sout_stream_t *prev;
prev = sout_StreamNewModule(parent,
vlc_array_item_at_index(&name, i),
vlc_array_item_at_index(&cfg, i),
front);
if (prev == NULL)
goto error;
front = prev;
}
vlc_array_clear(&name);
vlc_array_clear(&cfg);
return front;
error:
i++; /* last module couldn't be created */
/* Destroy module instances in LIFO order */
while (front != sink)
{
sout_stream_t *next = front->p_next;
sout_StreamDelete(front);
front = next;
}
/* then destroy all names and config which weren't destroyed by
* sout_StreamDelete */
while(i--)
{
free(vlc_array_item_at_index(&name, i));
config_ChainDestroy(vlc_array_item_at_index(&cfg, i));
}
vlc_array_clear(&name);
vlc_array_clear(&cfg);
return NULL;
}
static char *sout_stream_url_to_chain( bool b_sout_display,
const char *psz_url )
{
mrl_t mrl;
char *psz_chain;
mrl_Parse( &mrl, psz_url );
/* Check if the URLs goes to #rtp - otherwise we'll use #standard */
static const char rtplist[] = "dccp\0sctp\0tcp\0";
for (const char *a = rtplist; *a; a += strlen (a) + 1)
if (strcmp (a, mrl.psz_access) == 0)
goto rtp;
if (strcmp (mrl.psz_access, "rtp") == 0)
{
char *port;
/* For historical reasons, rtp:// means RTP over UDP */
strcpy (mrl.psz_access, "udp");
rtp:
if (mrl.psz_name[0] == '[')
{
port = strstr (mrl.psz_name, "]:");
if (port != NULL)
port++;
}
else
port = strchr (mrl.psz_name, ':');
if (port != NULL)
*port++ = '\0'; /* erase ':' */
if (asprintf (&psz_chain,
"rtp{mux=\"%s\",proto=\"%s\",dst=\"%s%s%s\"}",
mrl.psz_way, mrl.psz_access, mrl.psz_name,
port ? "\",port=\"" : "", port ? port : "") == -1)
psz_chain = NULL;
}
else
{
/* Convert the URL to a basic standard sout chain */
if (asprintf (&psz_chain,
"standard{mux=\"%s\",access=\"%s\",dst=\"%s\"}",
mrl.psz_way, mrl.psz_access, mrl.psz_name) == -1)
psz_chain = NULL;
}
/* Duplicate and wrap if sout-display is on */
if (psz_chain && b_sout_display)
{
char *tmp;
if (asprintf (&tmp, "duplicate{dst=display,dst=%s}", psz_chain) == -1)
tmp = NULL;
free (psz_chain);
psz_chain = tmp;
}
mrl_Clean( &mrl );
return psz_chain;
}
#undef sout_EncoderCreate
encoder_t *sout_EncoderCreate( vlc_object_t *p_this, size_t owner_size )
{
assert( owner_size >= sizeof(encoder_t) );
return vlc_custom_create( p_this, owner_size, "encoder" );
}
¤ Dauer der Verarbeitung: 0.12 Sekunden
¤
*© Formatika GbR, Deutschland
|
|