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Commit 81cfe15f authored by Stéphane Borel's avatar Stéphane Borel
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-Merged DVD netlist with input netlist to remove duplicated code. 

Basically, this adds the ability for the netlist to handle transport
packets that carry more than one data_packet.
parent 2ebfdccd
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Showing with 359 additions and 843 deletions
include/input_ext-plugins.h
View file @ 81cfe15f
......@@ -3,7 +3,7 @@
* but exported to plug-ins
*****************************************************************************
* Copyright (C) 1999, 2000, 2001 VideoLAN
* $Id: input_ext-plugins.h,v 1.2 2001/07/18 14:21:00 massiot Exp $
* $Id: input_ext-plugins.h,v 1.3 2001/11/11 01:32:03 stef Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
......@@ -156,13 +156,18 @@ typedef struct netlist_s
struct iovec * p_free_iovec;
/* FIFO size */
unsigned int i_nb_iovec;
unsigned int i_nb_pes;
unsigned int i_nb_data;
/* Index */
unsigned int i_iovec_start, i_iovec_end;
unsigned int i_data_start, i_data_end;
unsigned int i_pes_start, i_pes_end;
/* Reference counters for iovec */
unsigned int * pi_refcount;
/* Number of blocs read once by readv */
unsigned int i_read_once;
} netlist_t;
......@@ -171,17 +176,23 @@ typedef struct netlist_s
* Prototypes
*****************************************************************************/
int input_NetlistInit( struct input_thread_s *,
int i_nb_data, int i_nb_pes,
int i_nb_iovec,
int i_nb_data,
int i_nb_pes,
size_t i_buffer_size,
int i_read_once );
struct iovec * input_NetlistGetiovec( void * p_method_data );
void input_NetlistMviovec( void * , size_t, struct data_packet_s **);
struct iovec * input_NetlistGetiovec( void * p_method_data );
void input_NetlistMviovec( void * , int,
struct data_packet_s **);
struct data_packet_s * input_NetlistNewPtr( void * );
struct data_packet_s * input_NetlistNewPacket( void *, size_t );
struct pes_packet_s * input_NetlistNewPES( void * );
void input_NetlistDeletePacket( void *, struct data_packet_s * );
void input_NetlistDeletePES( void *, struct pes_packet_s * );
void input_NetlistEnd( struct input_thread_s * );
void input_NetlistDeletePacket( void *,
struct data_packet_s * );
void input_NetlistDeletePES( void *,
struct pes_packet_s * );
void input_NetlistEnd( struct input_thread_s * );
/*
......
include/modules_export.h
View file @ 81cfe15f
......@@ -121,11 +121,12 @@ typedef struct module_symbols_s
mtime_t );
int ( * input_NetlistInit ) ( struct input_thread_s *,
int, int, size_t, int );
int, int, int, size_t, int );
struct iovec * ( * input_NetlistGetiovec ) ( void * p_method_data );
void ( * input_NetlistMviovec ) ( void * , size_t,
void ( * input_NetlistMviovec ) ( void * , int,
struct data_packet_s **);
struct data_packet_s * ( * input_NetlistNewPacket ) ( void *, size_t );
struct data_packet_s * ( * input_NetlistNewPtr ) ( void * );
struct pes_packet_s * ( * input_NetlistNewPES ) ( void * );
void ( * input_NetlistDeletePacket ) ( void *, struct data_packet_s * );
void ( * input_NetlistDeletePES ) ( void *, struct pes_packet_s * );
......@@ -192,6 +193,7 @@ typedef struct module_symbols_s
(p_symbols)->input_NetlistGetiovec = input_NetlistGetiovec; \
(p_symbols)->input_NetlistMviovec = input_NetlistMviovec; \
(p_symbols)->input_NetlistNewPacket = input_NetlistNewPacket; \
(p_symbols)->input_NetlistNewPtr = input_NetlistNewPtr; \
(p_symbols)->input_NetlistNewPES = input_NetlistNewPES; \
(p_symbols)->input_NetlistDeletePacket = input_NetlistDeletePacket; \
(p_symbols)->input_NetlistDeletePES = input_NetlistDeletePES; \
......
plugins/dvd/Makefile
View file @ 81cfe15f
......@@ -7,7 +7,7 @@
# Objects
#
PLUGIN_DVD = dvd.o input_dvd.o dvd_netlist.o dvd_ifo.o dvd_udf.o dvd_summary.o $(OBJ_DVD)
PLUGIN_DVD = dvd.o input_dvd.o dvd_ifo.o dvd_udf.o dvd_summary.o $(OBJ_DVD)
BUILTIN_DVD = $(PLUGIN_DVD:%.o=BUILTIN_%.o)
ALL_OBJ = $(PLUGIN_DVD) $(BUILTIN_DVD)
......
plugins/dvd/dvd_netlist.c deleted 100644 → 0
View file @ 2ebfdccd
/*****************************************************************************
* dvd_netlist.c: Specific netlist for DVD packets
*****************************************************************************
* The original is in src/input.
* There is only one major change from input_netlist.c : data is now a
* pointer to an offset in iovec ; and iovec has a reference counter. It
* will only be given back to netlist when refcount is zero.
*****************************************************************************
* Copyright (C) 1998, 1999, 2000, 2001 VideoLAN
* $Id: dvd_netlist.c,v 1.14 2001/08/09 20:16:17 jlj Exp $
*
* Authors: Henri Fallon <henri@videolan.org>
* Stphane Borel <stef@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 "defs.h"
#include <stdlib.h>
#include <string.h> /* memcpy(), memset() */
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if defined( WIN32 )
# include <io.h> /* read() */
#else
# include <sys/uio.h> /* struct iovec */
#endif
#include "config.h"
#include "common.h"
#include "threads.h" /* mutex */
#include "mtime.h"
#include "intf_msg.h" /* intf_*Msg */
#if defined( WIN32 )
# include "input_iovec.h"
#endif
#include "stream_control.h"
#include "input_ext-intf.h"
#include "input_ext-dec.h"
#include "input_ext-plugins.h"
#include "dvd_netlist.h"
#include "modules.h"
#include "modules_export.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
/*****************************************************************************
* DVDNetlistInit: allocates netlist buffers and init indexes
* ---
* Changes from input_NetList: we have to give the length of the buffer which
* is different from i_nb_data now, since we may have several data pointers
* in one iovec. Thus we can only delete an iovec when its refcount is 0.
* We only received a buffer with a GetIovec whereas NewPacket gives a pointer.
*
* Warning: i_nb_iovec, i_nb_data, i_nb_pes have to be 2^x
*****************************************************************************/
dvd_netlist_t * DVDNetlistInit( int i_nb_iovec, int i_nb_data, int i_nb_pes,
size_t i_buffer_size, int i_read_once )
{
unsigned int i_loop;
dvd_netlist_t * p_netlist;
/* First we allocate and initialise our netlist struct */
p_netlist = malloc( sizeof(dvd_netlist_t) );
if ( p_netlist == NULL )
{
intf_ErrMsg("Unable to malloc the DVD netlist struct");
free( p_netlist );
return NULL;
}
/* Nb of packets read once by input */
p_netlist->i_read_once = i_read_once;
/* allocate the buffers */
p_netlist->p_buffers = malloc( i_nb_iovec *i_buffer_size );
if ( p_netlist->p_buffers == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (1)");
free( p_netlist->p_buffers );
free( p_netlist );
return NULL;
}
/* table of pointers to data packets */
p_netlist->p_data = malloc( i_nb_data *sizeof(data_packet_t) );
if ( p_netlist->p_data == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (2)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist );
return NULL;
}
/* table of pointer to PES packets */
p_netlist->p_pes = malloc( i_nb_pes *sizeof(pes_packet_t) );
if ( p_netlist->p_pes == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (3)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist );
return NULL;
}
/* allocate the FIFOs : tables of free pointers */
p_netlist->pp_free_data =
malloc( i_nb_data *sizeof(data_packet_t *) );
if ( p_netlist->pp_free_data == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (4)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist );
return NULL;
}
p_netlist->pp_free_pes =
malloc( i_nb_pes *sizeof(pes_packet_t *) );
if ( p_netlist->pp_free_pes == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (5)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist->pp_free_pes );
free( p_netlist );
return NULL;
}
p_netlist->p_free_iovec =
malloc( (i_nb_iovec + p_netlist->i_read_once) * sizeof(struct iovec) );
if ( p_netlist->p_free_iovec == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (6)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist->pp_free_pes );
free( p_netlist->p_free_iovec );
free( p_netlist );
return NULL;
}
/* table for reference counter of iovecs */
p_netlist->pi_refcount = malloc( i_nb_iovec *sizeof(int) );
if ( p_netlist->pi_refcount == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (7)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist->pp_free_pes );
free( p_netlist->p_free_iovec );
free( p_netlist->pi_refcount );
free( p_netlist );
return NULL;
}
/* Fill the data FIFO */
for ( i_loop = 0; i_loop < i_nb_data; i_loop++ )
{
p_netlist->pp_free_data[i_loop] =
p_netlist->p_data + i_loop;
}
/* Fill the PES FIFO */
for ( i_loop = 0; i_loop < i_nb_pes ; i_loop++ )
{
p_netlist->pp_free_pes[i_loop] =
p_netlist->p_pes + i_loop;
}
/* Deal with the iovec */
for ( i_loop = 0; i_loop < i_nb_iovec; i_loop++ )
{
p_netlist->p_free_iovec[i_loop].iov_base =
p_netlist->p_buffers + i_loop * i_buffer_size;
p_netlist->p_free_iovec[i_loop].iov_len = i_buffer_size;
}
/* initialize reference counters */
memset( p_netlist->pi_refcount, 0, i_nb_iovec *sizeof(int) );
/* vlc_mutex_init */
vlc_mutex_init (&p_netlist->lock);
/* initialize indexes */
p_netlist->i_iovec_start = 0;
p_netlist->i_iovec_end = i_nb_iovec - 1;
p_netlist->i_data_start = 0;
p_netlist->i_data_end = i_nb_data - 1;
p_netlist->i_pes_start = 0;
p_netlist->i_pes_end = i_nb_pes - 1;
/* we give (nb - 1) to use & instead of %
* if you really need nb you have to add 1 */
p_netlist->i_nb_iovec = i_nb_iovec - 1;
p_netlist->i_nb_data = i_nb_data - 1;
p_netlist->i_nb_pes = i_nb_pes - 1;
p_netlist->i_buffer_size = i_buffer_size;
return p_netlist; /* Everything went all right */
}
/*****************************************************************************
* DVDGetiovec: returns an iovec pointer for a readv() operation
*****************************************************************************
* We return an iovec vector, so that readv can read many packets at a time.
* pp_data will be set to direct to the fifo pointer in DVDMviovec, which
* will allow us to get the corresponding data_packet.
*****************************************************************************/
struct iovec * DVDGetiovec( void * p_method_data )
{
dvd_netlist_t * p_netlist;
/* cast */
p_netlist = (dvd_netlist_t *)p_method_data;
/* check that we have enough free iovec */
if( (
(p_netlist->i_iovec_end - p_netlist->i_iovec_start)
& p_netlist->i_nb_iovec ) < p_netlist->i_read_once )
{
intf_WarnMsg( 12, "input info: waiting for free iovec" );
msleep( INPUT_IDLE_SLEEP );
while( (
(p_netlist->i_iovec_end - p_netlist->i_iovec_start)
& p_netlist->i_nb_iovec ) < p_netlist->i_read_once )
{
msleep( INPUT_IDLE_SLEEP );
}
intf_WarnMsg( 12, "input info: found free iovec" );
}
if( (
(p_netlist->i_data_end - p_netlist->i_data_start)
& p_netlist->i_nb_data ) < p_netlist->i_read_once )
{
intf_WarnMsg( 12, "input info: waiting for free data packet" );
msleep( INPUT_IDLE_SLEEP );
while( (
(p_netlist->i_data_end - p_netlist->i_data_start)
& p_netlist->i_nb_data ) < p_netlist->i_read_once )
{
msleep( INPUT_IDLE_SLEEP );
}
intf_WarnMsg( 12, "input info: found free data packet" );
}
/* readv only takes contiguous buffers
* so, as a solution, we chose to have a FIFO a bit longer
* than i_nb_data, and copy the begining of the FIFO to its end
* if the readv needs to go after the end */
if( p_netlist->i_nb_iovec - p_netlist->i_iovec_start + 1 <
p_netlist->i_read_once )
{
memcpy( &p_netlist->p_free_iovec[p_netlist->i_nb_iovec + 1],
p_netlist->p_free_iovec,
(p_netlist->i_read_once -
(p_netlist->i_nb_iovec + 1 - p_netlist->i_iovec_start))
* sizeof(struct iovec)
);
}
return p_netlist->p_free_iovec + p_netlist->i_iovec_start;
}
/*****************************************************************************
* DVDMviovec: move the iovec pointer by one after a readv() operation and
* gives a data_packet corresponding to iovec in p_data
*****************************************************************************/
void DVDMviovec( void * p_method_data, int i_nb_iovec,
struct data_packet_s ** pp_data )
{
dvd_netlist_t * p_netlist;
unsigned int i_loop = 0;
/* cast */
p_netlist = (dvd_netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock( &p_netlist->lock );
/* Fills a table of pointers to packets associated with the io_vec's */
while( i_loop < i_nb_iovec )
{
pp_data[i_loop] = p_netlist->pp_free_data[p_netlist->i_data_start];
pp_data[i_loop]->p_buffer =
p_netlist->p_free_iovec[p_netlist->i_iovec_start].iov_base;
pp_data[i_loop]->pi_refcount = p_netlist->pi_refcount +
p_netlist->i_iovec_start;
p_netlist->i_iovec_start ++;
p_netlist->i_iovec_start &= p_netlist->i_nb_iovec;
p_netlist->i_data_start ++;
p_netlist->i_data_start &= p_netlist->i_nb_data;
i_loop ++;
}
/* unlock */
vlc_mutex_unlock( &p_netlist->lock );
}
/*****************************************************************************
* DVDNewPtr: returns a free data_packet_t
* Gives a pointer ; its fields need to be initialized
*****************************************************************************/
struct data_packet_s * DVDNewPtr( void * p_method_data )
{
dvd_netlist_t * p_netlist;
struct data_packet_s * p_return;
/* cast */
p_netlist = (dvd_netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* check */
if ( p_netlist->i_data_start == p_netlist->i_data_end )
{
intf_ErrMsg("Empty Data FIFO in netlist. Unable to allocate memory");
return ( NULL );
}
p_return = (p_netlist->pp_free_data[p_netlist->i_data_start]);
p_netlist->i_data_start++;
p_netlist->i_data_start &= p_netlist->i_nb_data;
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
return ( p_return );
}
/*****************************************************************************
* DVDNewPacket: returns a free data_packet_t, and takes a corresponding
* storage iovec
*****************************************************************************/
struct data_packet_s * DVDNewPacket( void * p_method_data,
size_t i_buffer_size )
{
dvd_netlist_t * p_netlist;
struct data_packet_s * p_packet;
//intf_ErrMsg( "netlist: New packet" );
/* cast */
p_netlist = (dvd_netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock( &p_netlist->lock );
/* check */
if ( p_netlist->i_iovec_start == p_netlist->i_iovec_end )
{
intf_ErrMsg("Empty io_vec FIFO in netlist. Unable to allocate memory");
return ( NULL );
}
if ( p_netlist->i_data_start == p_netlist->i_data_end )
{
intf_ErrMsg("Empty Data FIFO in netlist. Unable to allocate memory");
return ( NULL );
}
/* Gives an io_vec and associated data */
p_packet = p_netlist->pp_free_data[p_netlist->i_data_start];
p_packet->p_buffer =
p_netlist->p_free_iovec[p_netlist->i_iovec_start].iov_base;
p_packet->p_payload_start = p_packet->p_buffer;
p_packet->p_payload_end =
p_packet->p_buffer + i_buffer_size;
p_packet->p_next = NULL;
p_packet->b_discard_payload = 0;
p_packet->pi_refcount = p_netlist->pi_refcount + p_netlist->i_iovec_start;
(*p_packet->pi_refcount)++;
p_netlist->i_iovec_start ++;
p_netlist->i_iovec_start &= p_netlist->i_nb_iovec;
p_netlist->i_data_start ++;
p_netlist->i_data_start &= p_netlist->i_nb_data;
/* unlock */
vlc_mutex_unlock( &p_netlist->lock );
return p_packet;
}
/*****************************************************************************
* DVDNewPES: returns a free pes_packet_t
*****************************************************************************/
struct pes_packet_s * DVDNewPES( void * p_method_data )
{
dvd_netlist_t * p_netlist;
pes_packet_t * p_return;
//intf_ErrMsg( "netlist: New pes" );
/* cast */
p_netlist = (dvd_netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* check */
if ( p_netlist->i_pes_start == p_netlist->i_pes_end )
{
intf_ErrMsg("Empty PES FIFO in netlist - Unable to allocate memory");
return ( NULL );
}
/* allocate */
p_return = p_netlist->pp_free_pes[p_netlist->i_pes_start];
p_netlist->i_pes_start++;
p_netlist->i_pes_start &= p_netlist->i_nb_pes;
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
/* initialize PES */
p_return->b_data_alignment = 0;
p_return->b_discontinuity = 0;
p_return->i_pts = 0;
p_return->i_dts = 0;
p_return->i_pes_size = 0;
p_return->p_first = NULL;
return ( p_return );
}
/*****************************************************************************
* DVDDeletePacket: puts a data_packet_t back into the netlist
*****************************************************************************/
void DVDDeletePacket( void * p_method_data, data_packet_t * p_data )
{
dvd_netlist_t * p_netlist;
/* cast */
p_netlist = (dvd_netlist_t *) p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* Delete data_packet */
p_netlist->i_data_end ++;
p_netlist->i_data_end &= p_netlist->i_nb_data;
p_netlist->pp_free_data[p_netlist->i_data_end] = p_data;
p_data->p_next = NULL;
p_data->b_discard_payload = 0;
/* Update reference counter */
(*p_data->pi_refcount)--;
if( (*p_data->pi_refcount) == 0 )
{
p_netlist->i_iovec_end++;
p_netlist->i_iovec_end &= p_netlist->i_nb_iovec;
p_netlist->p_free_iovec[p_netlist->i_iovec_end].iov_base =
p_data->p_buffer;
}
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
}
/*****************************************************************************
* DVDDeletePES: puts a pes_packet_t back into the netlist
*****************************************************************************/
void DVDDeletePES( void * p_method_data, pes_packet_t * p_pes )
{
dvd_netlist_t * p_netlist;
data_packet_t * p_current_packet;
data_packet_t * p_next_packet;
/* cast */
p_netlist = (dvd_netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* delete free p_pes->p_first, p_next ... */
p_current_packet = p_pes->p_first;
while ( p_current_packet != NULL )
{
/* copy of NetListDeletePacket, duplicate code avoid many locks */
p_netlist->i_data_end ++;
p_netlist->i_data_end &= p_netlist->i_nb_data;
/* re initialize */
p_current_packet->p_payload_start = p_current_packet->p_buffer;
p_netlist->pp_free_data[p_netlist->i_data_end] = p_current_packet;
/* Update reference counter */
(*p_current_packet->pi_refcount)--;
if( (*p_current_packet->pi_refcount) <= 0 )
{
p_netlist->i_iovec_end++;
p_netlist->i_iovec_end &= p_netlist->i_nb_iovec;
p_netlist->p_free_iovec[p_netlist->i_iovec_end].iov_base =
p_current_packet->p_buffer;
}
p_next_packet = p_current_packet->p_next;
p_current_packet->p_next = NULL;
p_current_packet->b_discard_payload = 0;
p_current_packet = p_next_packet;
}
/* delete our current PES packet */
p_netlist->i_pes_end ++;
p_netlist->i_pes_end &= p_netlist->i_nb_pes;
p_netlist->pp_free_pes[p_netlist->i_pes_end] = p_pes;
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
}
/*****************************************************************************
* DVDNetlistEnd: frees all allocated structures
*****************************************************************************/
void DVDNetlistEnd( dvd_netlist_t * p_netlist )
{
/* destroy the mutex lock */
vlc_mutex_destroy( &p_netlist->lock );
/* free the FIFO, the buffer, and the netlist structure */
free( p_netlist->pi_refcount );
free( p_netlist->p_free_iovec );
free( p_netlist->pp_free_pes );
free( p_netlist->pp_free_data );
free( p_netlist->p_pes );
free( p_netlist->p_data );
free( p_netlist->p_buffers );
/* free the netlist */
free( p_netlist );
}
plugins/dvd/dvd_netlist.h deleted 100644 → 0
View file @ 2ebfdccd
/*****************************************************************************
* dvd_netlist.h: Specific netlist structures for DVD packets
*****************************************************************************
* Copyright (C) 1998, 1999, 2000, 2001 VideoLAN
* $Id: dvd_netlist.h,v 1.2 2001/03/03 07:07:01 stef Exp $
*
* Authors: Henri Fallon <henri@videolan.org>
* Stphane Borel <stef@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.
*****************************************************************************/
/*****************************************************************************
* netlist_t: structure to manage a netlist
*****************************************************************************/
typedef struct dvd_netlist_s
{
vlc_mutex_t lock;
size_t i_buffer_size;
/* Buffers */
byte_t * p_buffers; /* Big malloc'ed area */
data_packet_t * p_data; /* malloc'ed area */
pes_packet_t * p_pes; /* malloc'ed area */
/* FIFOs of free packets */
data_packet_t ** pp_free_data;
pes_packet_t ** pp_free_pes;
struct iovec * p_free_iovec;
/* FIFO size */
unsigned int i_nb_iovec;
unsigned int i_nb_pes;
unsigned int i_nb_data;
/* Index */
unsigned int i_iovec_start, i_iovec_end;
unsigned int i_data_start, i_data_end;
unsigned int i_pes_start, i_pes_end;
/* Reference counters for iovec */
unsigned int * pi_refcount;
/* Nb of packets read once */
unsigned int i_read_once;
} dvd_netlist_t;
/*****************************************************************************
* Prototypes
*****************************************************************************/
struct dvd_netlist_s * DVDNetlistInit( int , int, int, size_t, int );
struct iovec * DVDGetiovec( void * p_method_data );
void DVDMviovec( void * , int, struct data_packet_s **);
struct data_packet_s * DVDNewPtr( void * );
struct data_packet_s * DVDNewPacket( void *, size_t );
struct pes_packet_s * DVDNewPES( void * );
void DVDDeletePacket( void *, struct data_packet_s * );
void DVDDeletePES( void *, struct pes_packet_s * );
void DVDNetlistEnd( struct dvd_netlist_s * );
plugins/dvd/input_dvd.c
View file @ 81cfe15f
......@@ -10,7 +10,7 @@
* -dvd_udf to find files
*****************************************************************************
* Copyright (C) 1998-2001 VideoLAN
* $Id: input_dvd.c,v 1.92 2001/11/07 17:37:16 stef Exp $
* $Id: input_dvd.c,v 1.93 2001/11/11 01:32:03 stef Exp $
*
* Author: Stphane Borel <stef@via.ecp.fr>
*
......@@ -86,7 +86,6 @@
#include "input_ext-plugins.h"
#include "input_dvd.h"
#include "dvd_netlist.h"
#include "dvd_ifo.h"
#include "dvd_summary.h"
......@@ -138,10 +137,10 @@ void _M( input_getfunctions )( function_list_t * p_function_list )
input.pf_read = DVDRead;
input.pf_set_area = DVDSetArea;
input.pf_demux = input_DemuxPS;
input.pf_new_packet = DVDNewPacket;
input.pf_new_pes = DVDNewPES;
input.pf_delete_packet = DVDDeletePacket;
input.pf_delete_pes = DVDDeletePES;
input.pf_new_packet = input_NetlistNewPacket;
input.pf_new_pes = input_NetlistNewPES;
input.pf_delete_packet = input_NetlistDeletePacket;
input.pf_delete_pes = input_NetlistDeletePES;
input.pf_rewind = DVDRewind;
input.pf_seek = DVDSeek;
#undef input
......@@ -214,9 +213,8 @@ static void DVDInit( input_thread_t * p_input )
p_input->i_read_once = DVD_DATA_READ_ONCE;
/* Reading structures initialisation */
p_input->p_method_data =
DVDNetlistInit( DVD_NETLIST_SIZE, 2 * DVD_NETLIST_SIZE,
DVD_NETLIST_SIZE, DVD_LB_SIZE, p_dvd->i_block_once );
input_NetlistInit( p_input, DVD_NETLIST_SIZE, 2 * DVD_NETLIST_SIZE,
DVD_NETLIST_SIZE, DVD_LB_SIZE, p_dvd->i_block_once );
intf_WarnMsg( 2, "dvd info: netlist initialized" );
/* Ifo allocation & initialisation */
......@@ -370,16 +368,14 @@ static void DVDClose( struct input_thread_s *p_input )
static void DVDEnd( input_thread_t * p_input )
{
thread_dvd_data_t * p_dvd;
dvd_netlist_t * p_netlist;
p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
p_netlist = (dvd_netlist_t *)p_input->p_method_data;
IfoDestroy( p_dvd->p_ifo );
free( p_dvd );
DVDNetlistEnd( p_netlist );
input_NetlistEnd( p_input );
}
/*****************************************************************************
......@@ -809,7 +805,7 @@ static int DVDRead( input_thread_t * p_input,
data_packet_t ** pp_packets )
{
thread_dvd_data_t * p_dvd;
dvd_netlist_t * p_netlist;
netlist_t * p_netlist;
struct iovec * p_vec;
struct data_packet_s * pp_data[DVD_DATA_READ_ONCE];
u8 * pi_cur;
......@@ -825,7 +821,7 @@ static int DVDRead( input_thread_t * p_input,
boolean_t b_eoc;
p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
p_netlist = (dvd_netlist_t *)p_input->p_method_data;
p_netlist = (netlist_t *)p_input->p_method_data;
b_eoc = 0;
i_sector = p_dvd->i_title_start + p_dvd->i_sector;
......@@ -892,7 +888,7 @@ intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_o
p_netlist->i_read_once = i_block_once;
/* Get an iovec pointer */
if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
if( ( p_vec = input_NetlistGetiovec( p_netlist ) ) == NULL )
{
intf_ErrMsg( "dvd error: can't get iovec" );
return -1;
......@@ -904,7 +900,7 @@ intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_o
/* Update netlist indexes: we don't do it in DVDGetiovec since we
* need know the real number of blocks read */
DVDMviovec( p_netlist, i_read_blocks, pp_data );
input_NetlistMviovec( p_netlist, i_read_blocks, pp_data );
/* Update global position */
p_dvd->i_sector += i_read_blocks;
......@@ -925,31 +921,25 @@ intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_o
{
/* That's the case for all packets, except pack header. */
i_packet_size = U16_AT( pi_cur + 4 );
pp_packets[i_packet] = DVDNewPtr( p_netlist );
pp_packets[i_packet] = input_NetlistNewPtr( p_netlist );
(*pp_data[i_iovec]->pi_refcount)++;
pp_packets[i_packet]->pi_refcount =
pp_data[i_iovec]->pi_refcount;
pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
}
else
{
/* MPEG-2 Pack header. */
i_packet_size = 8;
pp_packets[i_packet] = pp_data[i_iovec];
}
(*pp_data[i_iovec]->pi_refcount)++;
pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
pp_packets[i_packet]->p_payload_start =
pp_packets[i_packet]->p_buffer + i_pos;
pp_packets[i_packet]->p_payload_end =
pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
pp_packets[i_packet]->p_next = NULL;
pp_packets[i_packet]->b_discard_payload = 0;
i_packet++;
i_pos += i_packet_size + 6;
}
......
plugins/mpeg/input_es.c
View file @ 81cfe15f
......@@ -2,7 +2,7 @@
* input_es.c: Elementary Stream demux and packet management
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: input_es.c,v 1.11 2001/10/02 17:04:42 massiot Exp $
* $Id: input_es.c,v 1.12 2001/11/11 01:32:03 stef Exp $
*
* Author: Christophe Massiot <massiot@via.ecp.fr>
*
......@@ -145,7 +145,7 @@ static void ESInit( input_thread_t * p_input )
p_input->p_method_data = NULL;
/* Initialize netlist */
if( input_NetlistInit( p_input, NB_DATA, NB_PES, ES_PACKET_SIZE,
if( input_NetlistInit( p_input, NB_DATA, NB_DATA, NB_PES, ES_PACKET_SIZE,
INPUT_READ_ONCE ) )
{
intf_ErrMsg( "ES input : Could not initialize netlist" );
......
plugins/mpeg/input_ts.c
View file @ 81cfe15f
......@@ -2,7 +2,7 @@
* input_ts.c: TS demux and netlist management
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
* $Id: input_ts.c,v 1.35 2001/10/22 02:33:54 xav Exp $
* $Id: input_ts.c,v 1.36 2001/11/11 01:32:03 stef Exp $
*
* Authors: Henri Fallon <henri@videolan.org>
*
......@@ -185,7 +185,7 @@ static void TSInit( input_thread_t * p_input )
/* Initialize netlist */
if( input_NetlistInit( p_input, NB_DATA, NB_PES, TS_PACKET_SIZE,
if( input_NetlistInit( p_input, NB_DATA, NB_DATA, NB_PES, TS_PACKET_SIZE,
INPUT_READ_ONCE ) )
{
intf_ErrMsg( "TS input : Could not initialize netlist" );
......
src/input/input_netlist.c
View file @ 81cfe15f
/*****************************************************************************
* input_netlist.c: netlist management
* dvd_netlist.c: netlist management v2
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
* $Id: input_netlist.c,v 1.42 2001/09/06 18:21:02 henri Exp $
* There is only one major change from input_netlist.c (1) : data is now a
* pointer to an offset in iovec ; and iovec has a reference counter. It
* will only be given back to netlist when refcount is zero.
*****************************************************************************
* Copyright (C) 1998, 1999, 2000, 2001 VideoLAN
* $Id: input_netlist.c,v 1.43 2001/11/11 01:32:03 stef Exp $
*
* Authors: Henri Fallon <henri@videolan.org>
* Stphane Borel <stef@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
......@@ -55,14 +60,24 @@
#include "input_ext-dec.h"
#include "input_ext-plugins.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
/*****************************************************************************
* input_NetlistInit: allocates netlist buffers and init indexes
* ---
* Changes from input_NetList: we have to give the length of the buffer which
* is different from i_nb_data now, since we may have several data pointers
* in one iovec. Thus we can only delete an iovec when its refcount is 0.
* We only received a buffer with a GetIovec whereas NewPacket gives a pointer.
*****************************************************************************/
int input_NetlistInit( input_thread_t * p_input, int i_nb_data, int i_nb_pes,
int input_NetlistInit( input_thread_t * p_input,
int i_nb_iovec, int i_nb_data, int i_nb_pes,
size_t i_buffer_size, int i_read_once )
{
unsigned int i_loop;
netlist_t * p_netlist;
unsigned int i_loop;
netlist_t * p_netlist;
/* First we allocate and initialise our netlist struct */
p_input->p_method_data = malloc(sizeof(netlist_t));
......@@ -71,15 +86,16 @@ int input_NetlistInit( input_thread_t * p_input, int i_nb_data, int i_nb_pes,
intf_ErrMsg("Unable to malloc the netlist struct");
return (-1);
}
p_netlist = (netlist_t *) p_input->p_method_data;
/* Nb of packets read once by input */
p_netlist->i_read_once = i_read_once;
/* In order to optimize netlist, we are taking i_nb_data a 2^i
* so that modulo is an "&".
* This is not changing i_nb data outside this function except in
* the netlist_t struct */
* the netlist_t struct */
/* As i_loop is unsigned int, and i_ns_data int, this shouldn't be a
* problem */
for( i_loop = 1; i_loop < i_nb_data; i_loop *= 2 )
......@@ -91,75 +107,127 @@ int input_NetlistInit( input_thread_t * p_input, int i_nb_data, int i_nb_pes,
i_nb_data = i_loop;
/* Same thing for i_nb_pes */
for( i_loop = 1; i_loop < i_nb_data; i_loop *= 2 )
for( i_loop = 1; i_loop < i_nb_pes; i_loop *= 2 )
{
;
}
intf_DbgMsg( "Netlist : Required %i byte, got %u",i_nb_data,i_loop );
i_nb_data = i_loop;
intf_DbgMsg( "Netlist : Required %i byte, got %u",i_nb_pes,i_loop );
i_nb_pes = i_loop;
/* Same thing for i_nb_iovec */
for( i_loop = 1; i_loop < i_nb_iovec; i_loop *= 2 )
{
;
}
intf_DbgMsg( "Netlist : Required %i byte, got %u",i_nb_iovec,i_loop );
i_nb_iovec = i_loop;
/* allocate the buffers */
p_netlist->p_buffers =
(byte_t *) malloc(i_buffer_size* i_nb_data );
p_netlist->p_buffers = malloc( i_nb_iovec *i_buffer_size );
if ( p_netlist->p_buffers == NULL )
{
intf_ErrMsg ("Unable to malloc in netlist initialization (1)");
return (-1);
free( p_netlist );
return -1;
}
p_netlist->p_data =
(data_packet_t *) malloc(sizeof(data_packet_t)*(i_nb_data));
/* table of pointers to data packets */
p_netlist->p_data = malloc( i_nb_data *sizeof(data_packet_t) );
if ( p_netlist->p_data == NULL )
{
intf_ErrMsg ("Unable to malloc in netlist initialization (2)");
return (-1);
free( p_netlist->p_buffers );
free( p_netlist );
return -1;
}
p_netlist->p_pes =
(pes_packet_t *) malloc(sizeof(pes_packet_t)*(i_nb_pes));
/* table of pointer to PES packets */
p_netlist->p_pes = malloc( i_nb_pes *sizeof(pes_packet_t) );
if ( p_netlist->p_pes == NULL )
{
intf_ErrMsg ("Unable to malloc in netlist initialization (3)");
return (-1);
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist );
return -1;
}
/* allocate the FIFOs */
/* allocate the FIFOs : tables of free pointers */
p_netlist->pp_free_data =
(data_packet_t **) malloc (i_nb_data * sizeof(data_packet_t *) );
malloc( i_nb_data *sizeof(data_packet_t *) );
if ( p_netlist->pp_free_data == NULL )
{
intf_ErrMsg ("Unable to malloc in netlist initialization (4)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist );
return -1;
}
p_netlist->pp_free_pes =
(pes_packet_t **) malloc (i_nb_pes * sizeof(pes_packet_t *) );
malloc( i_nb_pes *sizeof(pes_packet_t *) );
if ( p_netlist->pp_free_pes == NULL )
{
intf_ErrMsg ("Unable to malloc in netlist initialization (5)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist );
return -1;
}
p_netlist->p_free_iovec = ( struct iovec * )
malloc( (i_nb_data + p_netlist->i_read_once) * sizeof(struct iovec) );
p_netlist->p_free_iovec =
malloc( (i_nb_iovec + p_netlist->i_read_once) * sizeof(struct iovec) );
if ( p_netlist->p_free_iovec == NULL )
{
intf_ErrMsg ("Unable to malloc in netlist initialization (6)");
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (6)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist->pp_free_pes );
free( p_netlist );
return -1;
}
/* table for reference counter of iovecs */
p_netlist->pi_refcount = malloc( i_nb_iovec *sizeof(int) );
if ( p_netlist->pi_refcount == NULL )
{
intf_ErrMsg ("Unable to malloc in DVD netlist initialization (7)");
free( p_netlist->p_buffers );
free( p_netlist->p_data );
free( p_netlist->p_pes );
free( p_netlist->pp_free_data );
free( p_netlist->pp_free_pes );
free( p_netlist->p_free_iovec );
free( p_netlist );
return -1;
}
/* Fill the data FIFO */
for ( i_loop = 0; i_loop < i_nb_data; i_loop++ )
{
p_netlist->pp_free_data[i_loop] =
p_netlist->p_data + i_loop;
p_netlist->pp_free_data[i_loop]->p_buffer =
p_netlist->p_buffers + i_loop * i_buffer_size;
p_netlist->pp_free_data[i_loop]->p_payload_start =
p_netlist->pp_free_data[i_loop]->p_buffer;
p_netlist->pp_free_data[i_loop]->p_payload_end =
p_netlist->pp_free_data[i_loop]->p_buffer + i_buffer_size;
/* by default, one data packet for one buffer */
if( i_nb_data == i_nb_iovec )
{
p_netlist->pp_free_data[i_loop]->p_buffer =
p_netlist->p_buffers + i_loop * i_buffer_size;
p_netlist->pp_free_data[i_loop]->p_payload_start =
p_netlist->pp_free_data[i_loop]->p_buffer;
p_netlist->pp_free_data[i_loop]->p_payload_end =
p_netlist->pp_free_data[i_loop]->p_buffer + i_buffer_size;
}
}
/* Fill the PES FIFO */
for ( i_loop = 0; i_loop < i_nb_pes ; i_loop++ )
{
......@@ -168,125 +236,196 @@ int input_NetlistInit( input_thread_t * p_input, int i_nb_data, int i_nb_pes,
}
/* Deal with the iovec */
for ( i_loop = 0; i_loop < i_nb_data; i_loop++ )
for ( i_loop = 0; i_loop < i_nb_iovec; i_loop++ )
{
p_netlist->p_free_iovec[i_loop].iov_base =
p_netlist->p_buffers + i_loop * i_buffer_size;
p_netlist->p_free_iovec[i_loop].iov_len = i_buffer_size;
}
/* initialize reference counters */
memset( p_netlist->pi_refcount, 0, i_nb_iovec *sizeof(int) );
/* vlc_mutex_init */
vlc_mutex_init (&p_netlist->lock);
/* initialize indexes */
p_netlist->i_iovec_start = 0;
p_netlist->i_iovec_end = i_nb_iovec - 1;
p_netlist->i_data_start = 0;
p_netlist->i_data_end = i_nb_data - 1;
p_netlist->i_pes_start = 0;
p_netlist->i_pes_end = i_nb_pes - 1;
p_netlist->i_nb_data = i_nb_data;
p_netlist->i_nb_pes = i_nb_pes;
/* we give (nb - 1) to use & instead of %
* if you really need nb you have to add 1 */
p_netlist->i_nb_iovec = i_nb_iovec - 1;
p_netlist->i_nb_data = i_nb_data - 1;
p_netlist->i_nb_pes = i_nb_pes - 1;
p_netlist->i_buffer_size = i_buffer_size;
return (0); /* Everything went all right */
return 0; /* Everything went all right */
}
/*****************************************************************************
* input_NetlistGetiovec: returns an iovec pointer for a readv() operation
*****************************************************************************
* We return an iovec vector, so that readv can read many packets at a time,
* and we set pp_data to direct to the fifo pointer, which will allow us
* to get the corresponding data_packet.
* We return an iovec vector, so that readv can read many packets at a time.
* pp_data will be set to direct to the fifo pointer in DVDMviovec, which
* will allow us to get the corresponding data_packet.
*****************************************************************************/
struct iovec * input_NetlistGetiovec( void * p_method_data )
{
netlist_t * p_netlist;
netlist_t * p_netlist;
/* cast */
p_netlist = ( netlist_t * ) p_method_data;
p_netlist = (netlist_t *)p_method_data;
/* check */
if(
( (p_netlist->i_data_end - p_netlist->i_data_start + p_netlist->i_nb_data)
& ( p_netlist->i_nb_data -1 ) ) < p_netlist->i_read_once )
/* check that we have enough free iovec */
if( (
(p_netlist->i_iovec_end - p_netlist->i_iovec_start)
& p_netlist->i_nb_iovec ) < p_netlist->i_read_once )
{
intf_ErrMsg("Empty iovec FIFO.");
return (NULL);
intf_WarnMsg( 12, "input info: waiting for free iovec" );
msleep( INPUT_IDLE_SLEEP );
while( (
(p_netlist->i_iovec_end - p_netlist->i_iovec_start)
& p_netlist->i_nb_iovec ) < p_netlist->i_read_once )
{
msleep( INPUT_IDLE_SLEEP );
}
intf_WarnMsg( 12, "input info: found free iovec" );
}
if( (
(p_netlist->i_data_end - p_netlist->i_data_start)
& p_netlist->i_nb_data ) < p_netlist->i_read_once )
{
intf_WarnMsg( 12, "input info: waiting for free data packet" );
msleep( INPUT_IDLE_SLEEP );
while( (
(p_netlist->i_data_end - p_netlist->i_data_start)
& p_netlist->i_nb_data ) < p_netlist->i_read_once )
{
msleep( INPUT_IDLE_SLEEP );
}
intf_WarnMsg( 12, "input info: found free data packet" );
}
/* readv only takes contiguous buffers
* so, as a solution, we chose to have a FIFO a bit longer
* than i_nb_data, and copy the begining of the FIFO to its end
* if the readv needs to go after the end */
if( p_netlist->i_nb_data - p_netlist->i_data_start <
if( p_netlist->i_nb_iovec - p_netlist->i_iovec_start + 1 <
p_netlist->i_read_once )
{
memcpy( &p_netlist->p_free_iovec[p_netlist->i_nb_data],
memcpy( &p_netlist->p_free_iovec[p_netlist->i_nb_iovec + 1],
p_netlist->p_free_iovec,
(p_netlist->i_read_once-
(p_netlist->i_nb_data-p_netlist->i_data_start))
(p_netlist->i_read_once -
(p_netlist->i_nb_iovec + 1 - p_netlist->i_iovec_start))
* sizeof(struct iovec)
);
}
return &p_netlist->p_free_iovec[p_netlist->i_data_start];
return p_netlist->p_free_iovec + p_netlist->i_iovec_start;
}
/*****************************************************************************
* input_NetlistMviovec: move the iovec pointer after a readv() operation
* input_NetlistMviovec: move the iovec pointer by one after a readv()
* operation and gives a data_packet corresponding to iovec in p_data
*****************************************************************************/
void input_NetlistMviovec( void * p_method_data, size_t i_nb_iovec,
struct data_packet_s * pp_packets[INPUT_READ_ONCE] )
void input_NetlistMviovec( void * p_method_data, int i_nb_iovec,
struct data_packet_s ** pp_data )
{
netlist_t * p_netlist;
unsigned int i_loop = 0;
unsigned int i_current;
netlist_t * p_netlist;
unsigned int i_loop = 0;
/* cast */
p_netlist = (netlist_t *) p_method_data;
p_netlist = (netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
i_current = p_netlist->i_data_start;
vlc_mutex_lock( &p_netlist->lock );
/* Fills a table of pointers to packets associated with the io_vec's */
while (i_loop < i_nb_iovec )
while( i_loop < i_nb_iovec )
{
if( i_current >= p_netlist->i_nb_data )
i_current-=p_netlist->i_nb_data;
pp_data[i_loop] = p_netlist->pp_free_data[p_netlist->i_data_start];
pp_data[i_loop]->p_buffer =
p_netlist->p_free_iovec[p_netlist->i_iovec_start].iov_base;
pp_packets[i_loop] = p_netlist->pp_free_data[i_current];
pp_packets[i_loop]->b_discard_payload = 0;
pp_data[i_loop]->pi_refcount = p_netlist->pi_refcount +
p_netlist->i_iovec_start;
(*pp_data[i_loop]->pi_refcount)++;
p_netlist->i_iovec_start ++;
p_netlist->i_iovec_start &= p_netlist->i_nb_iovec;
p_netlist->i_data_start ++;
p_netlist->i_data_start &= p_netlist->i_nb_data;
i_loop ++;
i_current ++;
}
p_netlist->i_data_start += i_nb_iovec;
p_netlist->i_data_start &= ( p_netlist->i_nb_data - 1 );
/* unlock */
vlc_mutex_unlock( &p_netlist->lock );
}
/*****************************************************************************
* input_NetlistNewPtr: returns a free data_packet_t
* Gives a pointer ; its fields need to be initialized
*****************************************************************************/
struct data_packet_s * input_NetlistNewPtr( void * p_method_data )
{
netlist_t * p_netlist;
struct data_packet_s * p_return;
/* cast */
p_netlist = (netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* check */
if ( p_netlist->i_data_start == p_netlist->i_data_end )
{
intf_ErrMsg("Empty Data FIFO in netlist. Unable to allocate memory");
return ( NULL );
}
p_return = (p_netlist->pp_free_data[p_netlist->i_data_start]);
p_netlist->i_data_start++;
p_netlist->i_data_start &= p_netlist->i_nb_data;
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
return ( p_return );
}
/*****************************************************************************
* input_NetlistNewPacket: returns a free data_packet_t
* input_NetlistNewPacket: returns a free data_packet_t, and takes
* a corresponding storage iovec.
*****************************************************************************/
struct data_packet_s * input_NetlistNewPacket( void * p_method_data,
size_t i_buffer_size )
{
netlist_t * p_netlist;
struct data_packet_s * p_return;
{
netlist_t * p_netlist;
struct data_packet_s * p_packet;
/* cast */
p_netlist = ( netlist_t * ) p_method_data;
p_netlist = (netlist_t *)p_method_data;
#ifdef DEBUG
if( i_buffer_size > p_netlist->i_buffer_size )
......@@ -296,33 +435,51 @@ struct data_packet_s * input_NetlistNewPacket( void * p_method_data,
return NULL;
}
#endif
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* check */
vlc_mutex_lock( &p_netlist->lock );
/* check */
if ( p_netlist->i_iovec_start == p_netlist->i_iovec_end )
{
intf_ErrMsg("Empty io_vec FIFO in netlist. Unable to allocate memory");
return ( NULL );
}
if ( p_netlist->i_data_start == p_netlist->i_data_end )
{
intf_ErrMsg("Empty Data FIFO in netlist.");
intf_ErrMsg("Empty Data FIFO in netlist. Unable to allocate memory");
return ( NULL );
}
p_return = p_netlist->pp_free_data[p_netlist->i_data_start];
p_netlist->i_data_start++;
p_netlist->i_data_start &= ( p_netlist->i_nb_data - 1 );
/* Gives an io_vec and associated data */
p_packet = p_netlist->pp_free_data[p_netlist->i_data_start];
p_packet->p_buffer =
p_netlist->p_free_iovec[p_netlist->i_iovec_start].iov_base;
p_packet->p_payload_start = p_packet->p_buffer;
p_packet->p_payload_end =
p_packet->p_buffer + i_buffer_size;
p_packet->p_next = NULL;
p_packet->b_discard_payload = 0;
p_packet->pi_refcount = p_netlist->pi_refcount + p_netlist->i_iovec_start;
(*p_packet->pi_refcount)++;
p_netlist->i_iovec_start ++;
p_netlist->i_iovec_start &= p_netlist->i_nb_iovec;
p_netlist->i_data_start ++;
p_netlist->i_data_start &= p_netlist->i_nb_data;
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
vlc_mutex_unlock( &p_netlist->lock );
/* initialize data */
p_return->p_next = NULL;
p_return->b_discard_payload = 0;
p_return->p_payload_start = p_return->p_buffer;
p_return->p_payload_end = p_return->p_payload_start + i_buffer_size;
return ( p_return );
return p_packet;
}
/*****************************************************************************
......@@ -330,11 +487,11 @@ struct data_packet_s * input_NetlistNewPacket( void * p_method_data,
*****************************************************************************/
struct pes_packet_s * input_NetlistNewPES( void * p_method_data )
{
netlist_t * p_netlist;
pes_packet_t * p_return;
netlist_t * p_netlist;
pes_packet_t * p_return;
/* cast */
p_netlist = (netlist_t *) p_method_data;
p_netlist = (netlist_t *)p_method_data;
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
......@@ -342,25 +499,26 @@ struct pes_packet_s * input_NetlistNewPES( void * p_method_data )
/* check */
if ( p_netlist->i_pes_start == p_netlist->i_pes_end )
{
intf_ErrMsg("Empty PES FIFO in netlist");
intf_ErrMsg("Empty PES FIFO in netlist - Unable to allocate memory");
return ( NULL );
}
/* allocate */
p_return = p_netlist->pp_free_pes[p_netlist->i_pes_start];
p_netlist->i_pes_start++;
p_netlist->i_pes_start &= ( p_netlist->i_nb_pes - 1 );
p_netlist->i_pes_start &= p_netlist->i_nb_pes;
/* unlock */
vlc_mutex_unlock (&p_netlist->lock);
/* initialize PES */
p_return->b_data_alignment =
p_return->b_discontinuity =
p_return->i_pts = p_return->i_dts = 0;
p_return->b_data_alignment = 0;
p_return->b_discontinuity = 0;
p_return->i_pts = 0;
p_return->i_dts = 0;
p_return->i_pes_size = 0;
p_return->p_first = NULL;
return ( p_return );
}
......@@ -377,20 +535,32 @@ void input_NetlistDeletePacket( void * p_method_data, data_packet_t * p_data )
/* lock */
vlc_mutex_lock ( &p_netlist->lock );
/* Delete data_packet */
p_netlist->i_data_end ++;
p_netlist->i_data_end &= ( p_netlist->i_nb_data - 1 );
p_netlist->i_data_end &= p_netlist->i_nb_data;
p_data->p_payload_start = p_data->p_buffer;
p_data->p_payload_end = p_data->p_buffer + p_netlist->i_buffer_size;
p_netlist->pp_free_data[p_netlist->i_data_end] = p_data;
p_netlist->p_free_iovec[p_netlist->i_data_end].iov_base = p_data->p_buffer;
/* re initialize for next time */
p_data->p_payload_start = p_data->p_buffer;
p_data->p_next = NULL;
p_data->b_discard_payload = 0;
/* Update reference counter */
(*p_data->pi_refcount)--;
if( (*p_data->pi_refcount) <= 0 )
{
p_netlist->i_iovec_end++;
p_netlist->i_iovec_end &= p_netlist->i_nb_iovec;
p_netlist->p_free_iovec[p_netlist->i_iovec_end].iov_base =
p_data->p_buffer;
}
/* unlock */
vlc_mutex_unlock( &p_netlist->lock );
vlc_mutex_unlock (&p_netlist->lock);
}
/*****************************************************************************
......@@ -398,8 +568,9 @@ void input_NetlistDeletePacket( void * p_method_data, data_packet_t * p_data )
*****************************************************************************/
void input_NetlistDeletePES( void * p_method_data, pes_packet_t * p_pes )
{
netlist_t * p_netlist;
data_packet_t * p_current_packet,* p_next_packet;
netlist_t * p_netlist;
data_packet_t * p_current_packet;
data_packet_t * p_next_packet;
/* cast */
p_netlist = (netlist_t *)p_method_data;
......@@ -414,47 +585,61 @@ void input_NetlistDeletePES( void * p_method_data, pes_packet_t * p_pes )
/* copy of NetListDeletePacket, duplicate code avoid many locks */
p_netlist->i_data_end ++;
p_netlist->i_data_end &= ( p_netlist->i_nb_data - 1 );
p_netlist->i_data_end &= p_netlist->i_nb_data;
/* re initialize*/
/* re initialize */
p_current_packet->p_payload_start = p_current_packet->p_buffer;
p_current_packet->p_payload_end = p_current_packet->p_buffer
+ p_netlist->i_buffer_size;
p_netlist->pp_free_data[p_netlist->i_data_end] = p_current_packet;
p_netlist->p_free_iovec[p_netlist->i_data_end].iov_base
= p_current_packet->p_buffer;
/* Update reference counter */
(*p_current_packet->pi_refcount)--;
if( (*p_current_packet->pi_refcount) <= 0 )
{
(*p_current_packet->pi_refcount) = 0;
p_netlist->i_iovec_end++;
p_netlist->i_iovec_end &= p_netlist->i_nb_iovec;
p_netlist->p_free_iovec[p_netlist->i_iovec_end].iov_base =
p_current_packet->p_buffer;
}
p_next_packet = p_current_packet->p_next;
p_current_packet->p_next = NULL;
p_current_packet->b_discard_payload = 0;
p_current_packet = p_next_packet;
}
/* delete our current PES packet */
p_netlist->i_pes_end ++;
p_netlist->i_pes_end &= ( p_netlist->i_nb_pes - 1 );
p_netlist->i_pes_end &= p_netlist->i_nb_pes;
p_netlist->pp_free_pes[p_netlist->i_pes_end] = p_pes;
/* unlock */
vlc_mutex_unlock( &p_netlist->lock );
vlc_mutex_unlock (&p_netlist->lock);
}
/*****************************************************************************
* input_NetlistEnd: frees all allocated structures
*****************************************************************************/
void input_NetlistEnd( input_thread_t * p_input)
void input_NetlistEnd( input_thread_t * p_input )
{
netlist_t * p_netlist;
/* cast */
p_netlist = ( netlist_t * ) p_input->p_method_data;
/* destroy the mutex lock */
vlc_mutex_destroy (&p_netlist->lock);
vlc_mutex_destroy( &p_netlist->lock );
/* free the FIFO, the buffer, and the netlist structure */
free( p_netlist->pp_free_data );
free( p_netlist->pi_refcount );
free( p_netlist->p_free_iovec );
free( p_netlist->pp_free_pes );
free( p_netlist->pp_free_data );
free( p_netlist->p_pes );
free( p_netlist->p_data );
free( p_netlist->p_buffers );
......@@ -462,4 +647,3 @@ void input_NetlistEnd( input_thread_t * p_input)
/* free the netlist */
free( p_netlist );
}
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