Commit ccaab7a6 authored by Laurent Aimar's avatar Laurent Aimar

Split stream_demux from input/demux.c

parent 02dc7efe
...@@ -326,6 +326,7 @@ SOURCES_libvlc_common = \ ...@@ -326,6 +326,7 @@ SOURCES_libvlc_common = \
input/input_interface.h \ input/input_interface.h \
input/vlm_internal.h \ input/vlm_internal.h \
input/stream.c \ input/stream.c \
input/stream_demux.c \
input/stream_memory.c \ input/stream_memory.c \
input/subtitles.c \ input/subtitles.c \
input/var.c \ input/var.c \
......
...@@ -294,277 +294,6 @@ int demux_vaControlHelper( stream_t *s, ...@@ -294,277 +294,6 @@ int demux_vaControlHelper( stream_t *s,
} }
} }
/****************************************************************************
* stream_Demux*: create a demuxer for an outpout stream (allow demuxer chain)
****************************************************************************/
typedef struct
{
/* Data buffer */
block_fifo_t *p_fifo;
block_t *p_block;
int64_t i_pos;
/* Demuxer */
char *psz_name;
es_out_t *out;
demux_t *p_demux;
} d_stream_sys_t;
static int DStreamRead ( stream_t *, void *p_read, unsigned int i_read );
static int DStreamPeek ( stream_t *, const uint8_t **pp_peek, unsigned int i_peek );
static int DStreamControl( stream_t *, int i_query, va_list );
static void DStreamDelete ( stream_t * );
static void* DStreamThread ( vlc_object_t * );
stream_t *__stream_DemuxNew( vlc_object_t *p_obj, const char *psz_demux,
es_out_t *out )
{
/* We create a stream reader, and launch a thread */
stream_t *s;
d_stream_sys_t *p_sys;
s = stream_CommonNew( p_obj );
if( s == NULL )
return NULL;
s->pf_read = DStreamRead;
s->pf_peek = DStreamPeek;
s->pf_control= DStreamControl;
s->pf_destroy= DStreamDelete;
s->p_sys = malloc( sizeof( d_stream_sys_t) );
if( s->p_sys == NULL )
{
stream_CommonDelete( s );
return NULL;
}
p_sys = (d_stream_sys_t*)s->p_sys;
p_sys->i_pos = 0;
p_sys->out = out;
p_sys->p_demux = NULL;
p_sys->p_block = NULL;
p_sys->psz_name = strdup( psz_demux );
/* decoder fifo */
if( ( p_sys->p_fifo = block_FifoNew() ) == NULL )
{
stream_CommonDelete( s );
free( p_sys->psz_name );
free( p_sys );
return NULL;
}
if( vlc_thread_create( s, "stream out", DStreamThread,
VLC_THREAD_PRIORITY_INPUT, false ) )
{
stream_CommonDelete( s );
free( p_sys->psz_name );
free( p_sys );
return NULL;
}
return s;
}
void stream_DemuxSend( stream_t *s, block_t *p_block )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
if( p_block ) block_FifoPut( p_sys->p_fifo, p_block );
}
static void DStreamDelete( stream_t *s )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
block_t *p_empty;
vlc_object_kill( s );
if( p_sys->p_demux )
vlc_object_kill( p_sys->p_demux );
p_empty = block_New( s, 1 ); p_empty->i_buffer = 0;
block_FifoPut( p_sys->p_fifo, p_empty );
vlc_thread_join( s );
if( p_sys->p_demux ) demux_Delete( p_sys->p_demux );
if( p_sys->p_block ) block_Release( p_sys->p_block );
block_FifoRelease( p_sys->p_fifo );
free( p_sys->psz_name );
free( p_sys );
stream_CommonDelete( s );
}
static int DStreamRead( stream_t *s, void *p_read, unsigned int i_read )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
uint8_t *p_out = p_read;
int i_out = 0;
//msg_Dbg( s, "DStreamRead: wanted %d bytes", i_read );
while( !s->b_die && !s->b_error && i_read )
{
block_t *p_block = p_sys->p_block;
int i_copy;
if( !p_block )
{
p_block = block_FifoGet( p_sys->p_fifo );
if( !p_block ) s->b_error = 1;
p_sys->p_block = p_block;
}
if( p_block && i_read )
{
i_copy = __MIN( i_read, p_block->i_buffer );
if( p_out && i_copy ) memcpy( p_out, p_block->p_buffer, i_copy );
i_read -= i_copy;
i_out += i_copy;
p_block->i_buffer -= i_copy;
p_block->p_buffer += i_copy;
if( !p_block->i_buffer )
{
block_Release( p_block );
p_sys->p_block = NULL;
}
}
}
p_sys->i_pos += i_out;
return i_out;
}
static int DStreamPeek( stream_t *s, const uint8_t **pp_peek, unsigned int i_peek )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
block_t **pp_block = &p_sys->p_block;
int i_out = 0;
*pp_peek = 0;
//msg_Dbg( s, "DStreamPeek: wanted %d bytes", i_peek );
while( !s->b_die && !s->b_error && i_peek )
{
int i_copy;
if( !*pp_block )
{
*pp_block = block_FifoGet( p_sys->p_fifo );
if( !*pp_block ) s->b_error = 1;
}
if( *pp_block && i_peek )
{
i_copy = __MIN( i_peek, (*pp_block)->i_buffer );
i_peek -= i_copy;
i_out += i_copy;
if( i_peek ) pp_block = &(*pp_block)->p_next;
}
}
if( p_sys->p_block )
{
p_sys->p_block = block_ChainGather( p_sys->p_block );
*pp_peek = p_sys->p_block->p_buffer;
}
return i_out;
}
static int DStreamControl( stream_t *s, int i_query, va_list args )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
int64_t *p_i64;
bool *p_b;
int *p_int;
switch( i_query )
{
case STREAM_GET_SIZE:
p_i64 = (int64_t*) va_arg( args, int64_t * );
*p_i64 = 0;
return VLC_SUCCESS;
case STREAM_CAN_SEEK:
p_b = (bool*) va_arg( args, bool * );
*p_b = false;
return VLC_SUCCESS;
case STREAM_CAN_FASTSEEK:
p_b = (bool*) va_arg( args, bool * );
*p_b = false;
return VLC_SUCCESS;
case STREAM_GET_POSITION:
p_i64 = (int64_t*) va_arg( args, int64_t * );
*p_i64 = p_sys->i_pos;
return VLC_SUCCESS;
case STREAM_SET_POSITION:
{
int64_t i64 = (int64_t)va_arg( args, int64_t );
int i_skip;
if( i64 < p_sys->i_pos ) return VLC_EGENERIC;
i_skip = i64 - p_sys->i_pos;
while( i_skip > 0 )
{
int i_read = DStreamRead( s, NULL, (long)i_skip );
if( i_read <= 0 ) return VLC_EGENERIC;
i_skip -= i_read;
}
return VLC_SUCCESS;
}
case STREAM_GET_MTU:
p_int = (int*) va_arg( args, int * );
*p_int = 0;
return VLC_SUCCESS;
case STREAM_CONTROL_ACCESS:
case STREAM_GET_CONTENT_TYPE:
case STREAM_SET_RECORD_STATE:
return VLC_EGENERIC;
default:
msg_Err( s, "invalid DStreamControl query=0x%x", i_query );
return VLC_EGENERIC;
}
}
static void* DStreamThread( vlc_object_t* p_this )
{
stream_t *s = (stream_t *)p_this;
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
demux_t *p_demux;
int canc = vlc_savecancel();
/* Create the demuxer */
if( !(p_demux = demux_New( s, "", p_sys->psz_name, "", s, p_sys->out,
false )) )
{
return NULL;
}
p_sys->p_demux = p_demux;
/* Main loop */
while( !s->b_die && !p_demux->b_die )
{
if( demux_Demux( p_demux ) <= 0 ) break;
}
vlc_restorecancel( canc );
vlc_object_kill( p_demux );
return NULL;
}
/**************************************************************************** /****************************************************************************
* Utility functions * Utility functions
****************************************************************************/ ****************************************************************************/
......
/*****************************************************************************
* stream_demux.c
*****************************************************************************
* Copyright (C) 1999-2008 the VideoLAN team
* $Id$
*
* Author: Laurent Aimar <fenrir _AT_ videolan _DOT_ 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "demux.h"
#include <libvlc.h>
#include <vlc_codec.h>
/****************************************************************************
* stream_Demux*: create a demuxer for an outpout stream (allow demuxer chain)
****************************************************************************/
typedef struct
{
/* Data buffer */
block_fifo_t *p_fifo;
block_t *p_block;
int64_t i_pos;
/* Demuxer */
char *psz_name;
es_out_t *out;
demux_t *p_demux;
} d_stream_sys_t;
static int DStreamRead ( stream_t *, void *p_read, unsigned int i_read );
static int DStreamPeek ( stream_t *, const uint8_t **pp_peek, unsigned int i_peek );
static int DStreamControl( stream_t *, int i_query, va_list );
static void DStreamDelete ( stream_t * );
static void* DStreamThread ( vlc_object_t * );
stream_t *__stream_DemuxNew( vlc_object_t *p_obj, const char *psz_demux,
es_out_t *out )
{
/* We create a stream reader, and launch a thread */
stream_t *s;
d_stream_sys_t *p_sys;
s = stream_CommonNew( p_obj );
if( s == NULL )
return NULL;
s->pf_read = DStreamRead;
s->pf_peek = DStreamPeek;
s->pf_control= DStreamControl;
s->pf_destroy= DStreamDelete;
s->p_sys = malloc( sizeof( d_stream_sys_t) );
if( s->p_sys == NULL )
{
stream_CommonDelete( s );
return NULL;
}
p_sys = (d_stream_sys_t*)s->p_sys;
p_sys->i_pos = 0;
p_sys->out = out;
p_sys->p_demux = NULL;
p_sys->p_block = NULL;
p_sys->psz_name = strdup( psz_demux );
/* decoder fifo */
if( ( p_sys->p_fifo = block_FifoNew() ) == NULL )
{
stream_CommonDelete( s );
free( p_sys->psz_name );
free( p_sys );
return NULL;
}
if( vlc_thread_create( s, "stream out", DStreamThread,
VLC_THREAD_PRIORITY_INPUT, false ) )
{
stream_CommonDelete( s );
free( p_sys->psz_name );
free( p_sys );
return NULL;
}
return s;
}
void stream_DemuxSend( stream_t *s, block_t *p_block )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
if( p_block ) block_FifoPut( p_sys->p_fifo, p_block );
}
static void DStreamDelete( stream_t *s )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
block_t *p_empty;
vlc_object_kill( s );
if( p_sys->p_demux )
vlc_object_kill( p_sys->p_demux );
p_empty = block_New( s, 1 ); p_empty->i_buffer = 0;
block_FifoPut( p_sys->p_fifo, p_empty );
vlc_thread_join( s );
if( p_sys->p_demux ) demux_Delete( p_sys->p_demux );
if( p_sys->p_block ) block_Release( p_sys->p_block );
block_FifoRelease( p_sys->p_fifo );
free( p_sys->psz_name );
free( p_sys );
stream_CommonDelete( s );
}
static int DStreamRead( stream_t *s, void *p_read, unsigned int i_read )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
uint8_t *p_out = p_read;
int i_out = 0;
//msg_Dbg( s, "DStreamRead: wanted %d bytes", i_read );
while( !s->b_die && !s->b_error && i_read )
{
block_t *p_block = p_sys->p_block;
int i_copy;
if( !p_block )
{
p_block = block_FifoGet( p_sys->p_fifo );
if( !p_block ) s->b_error = 1;
p_sys->p_block = p_block;
}
if( p_block && i_read )
{
i_copy = __MIN( i_read, p_block->i_buffer );
if( p_out && i_copy ) memcpy( p_out, p_block->p_buffer, i_copy );
i_read -= i_copy;
i_out += i_copy;
p_block->i_buffer -= i_copy;
p_block->p_buffer += i_copy;
if( !p_block->i_buffer )
{
block_Release( p_block );
p_sys->p_block = NULL;
}
}
}
p_sys->i_pos += i_out;
return i_out;
}
static int DStreamPeek( stream_t *s, const uint8_t **pp_peek, unsigned int i_peek )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
block_t **pp_block = &p_sys->p_block;
int i_out = 0;
*pp_peek = 0;
//msg_Dbg( s, "DStreamPeek: wanted %d bytes", i_peek );
while( !s->b_die && !s->b_error && i_peek )
{
int i_copy;
if( !*pp_block )
{
*pp_block = block_FifoGet( p_sys->p_fifo );
if( !*pp_block ) s->b_error = 1;
}
if( *pp_block && i_peek )
{
i_copy = __MIN( i_peek, (*pp_block)->i_buffer );
i_peek -= i_copy;
i_out += i_copy;
if( i_peek ) pp_block = &(*pp_block)->p_next;
}
}
if( p_sys->p_block )
{
p_sys->p_block = block_ChainGather( p_sys->p_block );
*pp_peek = p_sys->p_block->p_buffer;
}
return i_out;
}
static int DStreamControl( stream_t *s, int i_query, va_list args )
{
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
int64_t *p_i64;
bool *p_b;
int *p_int;
switch( i_query )
{
case STREAM_GET_SIZE:
p_i64 = (int64_t*) va_arg( args, int64_t * );
*p_i64 = 0;
return VLC_SUCCESS;
case STREAM_CAN_SEEK:
p_b = (bool*) va_arg( args, bool * );
*p_b = false;
return VLC_SUCCESS;
case STREAM_CAN_FASTSEEK:
p_b = (bool*) va_arg( args, bool * );
*p_b = false;
return VLC_SUCCESS;
case STREAM_GET_POSITION:
p_i64 = (int64_t*) va_arg( args, int64_t * );
*p_i64 = p_sys->i_pos;
return VLC_SUCCESS;
case STREAM_SET_POSITION:
{
int64_t i64 = (int64_t)va_arg( args, int64_t );
int i_skip;
if( i64 < p_sys->i_pos ) return VLC_EGENERIC;
i_skip = i64 - p_sys->i_pos;
while( i_skip > 0 )
{
int i_read = DStreamRead( s, NULL, (long)i_skip );
if( i_read <= 0 ) return VLC_EGENERIC;
i_skip -= i_read;
}
return VLC_SUCCESS;
}
case STREAM_GET_MTU:
p_int = (int*) va_arg( args, int * );
*p_int = 0;
return VLC_SUCCESS;
case STREAM_CONTROL_ACCESS:
case STREAM_GET_CONTENT_TYPE:
case STREAM_SET_RECORD_STATE:
return VLC_EGENERIC;
default:
msg_Err( s, "invalid DStreamControl query=0x%x", i_query );
return VLC_EGENERIC;
}
}
static void* DStreamThread( vlc_object_t* p_this )
{
stream_t *s = (stream_t *)p_this;
d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
demux_t *p_demux;
int canc = vlc_savecancel();
/* Create the demuxer */
if( !(p_demux = demux_New( s, "", p_sys->psz_name, "", s, p_sys->out,
false )) )
{
return NULL;
}
p_sys->p_demux = p_demux;
/* Main loop */
while( !s->b_die && !p_demux->b_die )
{
if( demux_Demux( p_demux ) <= 0 ) break;
}
vlc_restorecancel( canc );
vlc_object_kill( p_demux );
return NULL;
}
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