* input_ts.c: TS demux and netlist management
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
- * $Id: input_ts.c,v 1.1 2001/02/08 04:43:27 sam Exp $
+ * $Id: input_ts.c,v 1.25 2001/06/02 01:09:03 sam Exp $
*
- * Authors:
+ * Authors: Henri Fallon <henri@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
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
+#define MODULE_NAME ts
+#include "modules_inner.h"
+
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <string.h>
#include <errno.h>
+#ifdef STRNCASECMP_IN_STRINGS_H
+# include <strings.h>
+#endif
+
+#include <sys/types.h>
+
+#if !defined( _MSC_VER )
+# include <sys/time.h>
+#endif
+
+#ifdef SYS_NTO
+# include <sys/select.h>
+#endif
+
+#include <sys/stat.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include <fcntl.h>
+
+#if defined( WIN32 )
+# include <io.h>
+# include "input_iovec.h"
+#else
+# include <sys/uio.h> /* struct iovec */
+#endif
+
#include "config.h"
#include "common.h"
#include "threads.h"
#include "input_ext-dec.h"
#include "input.h"
+#include "input_ts.h"
#include "mpeg_system.h"
#include "input_netlist.h"
* Local prototypes
*****************************************************************************/
static int TSProbe ( probedata_t * );
-static int TSRead ( struct input_thread_s *,
- data_packet_t * p_packets[INPUT_READ_ONCE] );
static void TSInit ( struct input_thread_s * );
+static void TSFakeOpen ( struct input_thread_s * );
static void TSEnd ( struct input_thread_s * );
+static int TSRead ( struct input_thread_s *,
+ data_packet_t * p_packets[INPUT_READ_ONCE] );
/*****************************************************************************
* Functions exported as capabilities. They are declared as static so that
* we don't pollute the namespace too much.
*****************************************************************************/
-void input_getfunctions( function_list_t * p_function_list )
+void _M( input_getfunctions )( function_list_t * p_function_list )
{
#define input p_function_list->functions.input
p_function_list->pf_probe = TSProbe;
input.pf_init = TSInit;
- input.pf_open = input_FileOpen;
- input.pf_close = input_FileClose;
+ input.pf_open = TSFakeOpen;
+ input.pf_close = NULL; /* Will be set by pf_open */
input.pf_end = TSEnd;
+ input.pf_set_area = NULL;
input.pf_read = TSRead;
input.pf_demux = input_DemuxTS;
input.pf_new_packet = input_NetlistNewPacket;
*****************************************************************************/
static int TSProbe( probedata_t * p_data )
{
+ input_thread_t * p_input = (input_thread_t *)p_data;
+
+ char * psz_name = p_input->p_source;
+ int i_handle;
+ int i_score = 1;
+
if( TestMethod( INPUT_METHOD_VAR, "ts" ) )
{
return( 999 );
}
- /* verify that the first byte is 0x47 */
- return 1;
+ if( ( strlen(psz_name) > 3 ) && !strncasecmp( psz_name, "ts:", 3 ) )
+ {
+ /* If the user specified "ts:" then it's probably a network stream */
+ return( 999 );
+ }
+
+ if( ( strlen(psz_name) > 5 ) && !strncasecmp( psz_name, "file:", 5 ) )
+ {
+ /* If the user specified "file:" then it's probably a file */
+ psz_name += 5;
+ }
+
+ if( ( strlen(psz_name) > 3 ) &&
+ !strncasecmp( psz_name+strlen(psz_name)-3, ".ts", 3) )
+ {
+ /* If it is a ".ts" file it's probably a TS file ... */
+ return( 900 );
+ }
+
+ i_handle = open( psz_name, 0 );
+ if( i_handle == -1 )
+ {
+ return( 0 );
+ }
+ close( i_handle );
+
+ return( i_score );
}
/*****************************************************************************
static void TSInit( input_thread_t * p_input )
{
/* Initialize netlist and TS structures */
+ thread_ts_data_t * p_method;
+ es_descriptor_t * p_pat_es;
+ es_ts_data_t * p_demux_data;
+ stream_ts_data_t * p_stream_data;
+
+ /* Initialise structure */
+ p_method = malloc( sizeof( thread_ts_data_t ) );
+ if( p_method == NULL )
+ {
+ intf_ErrMsg( "TS input : Out of memory" );
+ p_input->b_error = 1;
+ return;
+ }
+
+ p_input->p_plugin_data = (void *)p_method;
+ p_input->p_method_data = NULL;
+
+
+ /* Initialize netlist */
+ if( input_NetlistInit( p_input, NB_DATA, NB_PES, TS_PACKET_SIZE,
+ INPUT_READ_ONCE ) )
+ {
+ intf_ErrMsg( "TS input : Could not initialize netlist" );
+ return;
+ }
+
+ /* Initialize the stream */
+ input_InitStream( p_input, sizeof( stream_ts_data_t ) );
+
+ /* input method type */
+ /* FIXME: should test if you have network or file here */
+ p_input->stream.i_method = INPUT_METHOD_NETWORK;
+ p_input->stream.p_selected_area->i_tell = 0;
+
+ /* Init */
+ p_stream_data = (stream_ts_data_t *)p_input->stream.p_demux_data;
+ p_stream_data->i_pat_version = PAT_UNINITIALIZED ;
+
+ /* We'll have to catch the PAT in order to continue
+ * Then the input will catch the PMT and then the others ES
+ * The PAT es is indepedent of any program. */
+ p_pat_es = input_AddES( p_input, NULL,
+ 0x00, sizeof( es_ts_data_t ) );
+ p_demux_data=(es_ts_data_t *)p_pat_es->p_demux_data;
+ p_demux_data->b_psi = 1;
+ p_demux_data->i_psi_type = PSI_IS_PAT;
+ p_demux_data->p_psi_section = malloc(sizeof(psi_section_t));
+ p_demux_data->p_psi_section->b_is_complete = 1;
+
+}
+
+/*****************************************************************************
+ * TSFakeOpen: open the stream and set pf_close
+ *****************************************************************************/
+void TSFakeOpen( input_thread_t * p_input )
+{
+#if !defined( SYS_BEOS ) && !defined( SYS_NTO )
+ char *psz_name = p_input->p_source;
+
+ if( ( strlen(psz_name) > 3 ) && !strncasecmp( psz_name, "ts:", 3 ) )
+ {
+ /* If the user specified "ts:" he wants a network stream */
+ p_input->pf_open = p_input->pf_network_open;
+ p_input->pf_close = p_input->pf_network_close;
+ }
+ else
+#endif
+ {
+ p_input->pf_open = p_input->pf_file_open;
+ p_input->pf_close = p_input->pf_file_close;
+ }
+
+ p_input->pf_open( p_input );
}
/*****************************************************************************
*****************************************************************************/
static void TSEnd( input_thread_t * p_input )
{
+ es_descriptor_t * p_pat_es;
+
+ p_pat_es = input_FindES( p_input, 0x00 );
+ if( p_pat_es != NULL )
+ input_DelES( p_input, p_pat_es );
+ free(p_input->p_plugin_data);
}
/*****************************************************************************
static int TSRead( input_thread_t * p_input,
data_packet_t * pp_packets[INPUT_READ_ONCE] )
{
- return -1;
+ thread_ts_data_t * p_method;
+ unsigned int i_read, i_loop;
+ int i_data;
+ struct iovec * p_iovec;
+ struct timeval s_wait;
+
+
+ /* Get iovecs */
+ p_iovec = input_NetlistGetiovec( p_input->p_method_data );
+
+ if ( p_iovec == NULL )
+ {
+ return( -1 ); /* empty netlist */
+ }
+
+ /* Init */
+ p_method = ( thread_ts_data_t * )p_input->p_plugin_data;
+
+ /* Initialize file descriptor set */
+ FD_ZERO( &(p_method->fds) );
+ FD_SET( p_input->i_handle, &(p_method->fds) );
+
+ /* We'll wait 0.5 second if nothing happens */
+ s_wait.tv_sec = 0;
+ s_wait.tv_usec = 500000;
+
+ /* Reset pointer table */
+ memset( pp_packets, 0, INPUT_READ_ONCE * sizeof(data_packet_t *) );
+
+ /* Fill if some data is available */
+ i_data = select( p_input->i_handle + 1, &(p_method->fds), NULL, NULL,
+ &s_wait);
+
+ if( i_data == -1 )
+ {
+ intf_ErrMsg( "input error: TS select error (%s)", strerror(errno) );
+ return( -1 );
+ }
+
+ if( i_data )
+ {
+ i_read = readv( p_input->i_handle, p_iovec, INPUT_READ_ONCE );
+
+ if( i_read == -1 )
+ {
+ intf_ErrMsg( "input error: TS readv error" );
+ return( -1 );
+ }
+
+ input_NetlistMviovec( p_input->p_method_data,
+ (int)(i_read/TS_PACKET_SIZE) , pp_packets );
+
+ /* check correct TS header */
+ for( i_loop=0; i_loop * TS_PACKET_SIZE < i_read; i_loop++ )
+ {
+ if( pp_packets[i_loop]->p_buffer[0] != 0x47 )
+ intf_ErrMsg( "input error: bad TS packet (starts with "
+ "0x%.2x, should be 0x47)",
+ pp_packets[i_loop]->p_buffer[0] );
+ }
+
+ p_input->stream.p_selected_area->i_tell += i_read;
+ }
+ return 0;
}
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