X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Finput%2Finput.c;h=e923239accfdf8b4d4694d845651e925b7208e91;hb=0a4aeaa67cae0699195b135dcc65ce5b0ee5fdc4;hp=6116673d0359c926d20281be5fd6865efd63055f;hpb=24dafcdc380d455433f696e4f1051dcbe8e99ace;p=vlc diff --git a/src/input/input.c b/src/input/input.c index 6116673d03..e923239acc 100644 --- a/src/input/input.c +++ b/src/input/input.c @@ -1,1209 +1,702 @@ -/******************************************************************************* - * input.c: input thread - * (c)1998 VideoLAN - ******************************************************************************* +/***************************************************************************** + * input.c: input thread * Read an MPEG2 stream, demultiplex and parse it before sending it to * decoders. - *******************************************************************************/ - -/******************************************************************************* + ***************************************************************************** + * Copyright (C) 1998, 1999, 2000 VideoLAN + * $Id: input.c,v 1.102 2001/04/28 03:36:25 sam Exp $ + * + * Authors: Christophe Massiot + * + * 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 -#include -#include /* iovec */ + *****************************************************************************/ +#include "defs.h" + +#include +#include +#include +#include +#include #include +#ifdef STRNCASECMP_IN_STRINGS_H +# include +#endif +#include -#include -#include -#include +/* Network functions */ -#include /* atoi(), malloc(), free() */ -#include -#include /* ioctl() */ -#include /* ifreq */ +#if !defined( SYS_BEOS ) && !defined( SYS_NTO ) && !defined( WIN32 ) +#include /* hostent ... */ +#include #include +#include +#include +#include +#endif + +#ifdef STATS +# include +#endif -#include "common.h" #include "config.h" +#include "common.h" +#include "threads.h" #include "mtime.h" +#include "netutils.h" +#include "modules.h" + #include "intf_msg.h" -#include "debug.h" +#include "intf_playlist.h" + +#include "stream_control.h" +#include "input_ext-intf.h" +#include "input_ext-dec.h" #include "input.h" -#include "input_psi.h" -#include "input_pcr.h" -#include "input_netlist.h" -#include "decoder_fifo.h" -#include "input_file.h" -#include "input_network.h" +#include "interface.h" + +#include "main.h" -#include "audio_output.h" -#include "audio_decoder.h" + /* #include */ -#include "video.h" -#include "video_output.h" -#include "video_decoder.h" -/****************************************************************************** +/***************************************************************************** * Local prototypes - ******************************************************************************/ -static void input_Thread( input_thread_t *p_input ); -static __inline__ int input_ReadPacket( input_thread_t *p_input ); -static __inline__ void input_SortPacket( input_thread_t *p_input, - ts_packet_t *ts_packet ); -static __inline__ void input_DemuxTS( input_thread_t *p_input, - ts_packet_t *ts_packet, - es_descriptor_t *es_descriptor ); -static __inline__ void input_DemuxPES( input_thread_t *p_input, - ts_packet_t *ts_packet, - es_descriptor_t *p_es_descriptor, - boolean_t b_unit_start, boolean_t b_packet_lost ); -static __inline__ void input_DemuxPSI( input_thread_t *p_input, - ts_packet_t *ts_packet, - es_descriptor_t *p_es_descriptor, - boolean_t b_unit_start, boolean_t b_packet_lost ); - -/******************************************************************************* - * input_CreateThread: initialize and spawn an input thread - ******************************************************************************* - * This function initializes and spawns an input thread. It returns NULL on - * failure. If you want a better understanding of the input thread, don't start - * by reading this function :-). - *******************************************************************************/ -input_thread_t *input_CreateThread( input_cfg_t *p_cfg ) + *****************************************************************************/ +static void RunThread ( input_thread_t *p_input ); +static int InitThread ( input_thread_t *p_input ); +static void ErrorThread ( input_thread_t *p_input ); +static void DestroyThread ( input_thread_t *p_input ); +static void EndThread ( input_thread_t *p_input ); + +/***************************************************************************** + * input_CreateThread: creates a new input thread + ***************************************************************************** + * This function creates a new input, and returns a pointer + * to its description. On error, it returns NULL. + * If pi_status is NULL, then the function will block until the thread is ready. + * If not, it will be updated using one of the THREAD_* constants. + *****************************************************************************/ +input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status ) { - input_thread_t * p_input; - int i_index; - - intf_DbgMsg("input debug 1-1: creating thread (cfg : %p)\n", p_cfg ); + input_thread_t * p_input; /* thread descriptor */ + int i_status; /* thread status */ - /* Allocate input_thread_t structure. */ - if( !( p_input = (input_thread_t *)malloc(sizeof(input_thread_t)) ) ) + /* Allocate descriptor */ + p_input = (input_thread_t *)malloc( sizeof(input_thread_t) ); + if( p_input == NULL ) { - intf_ErrMsg("input error: can't allocate input thread structure (%s)\n", - strerror(errno)); + intf_ErrMsg( "input error: can't allocate input thread (%s)", + strerror(errno) ); return( NULL ); } - /* Init it */ - bzero( p_input, sizeof(input_thread_t)); - for( i_index = 0; i_index < INPUT_MAX_ES; i_index++ ) - { - p_input->p_es[i_index].i_id = EMPTY_PID; - } - /* Find out which method we are gonna use and retrieve pointers. */ - if( !((p_cfg->i_properties) & INPUT_CFG_METHOD) ) - { - /* i_method is not set. */ - intf_DbgMsg("input debug: using default method (%d)\n", - INPUT_DEFAULT_METHOD); - p_cfg->i_method = INPUT_DEFAULT_METHOD; - p_cfg->i_properties |= INPUT_CFG_METHOD; - } - p_input->i_method = p_cfg->i_method; - switch( p_cfg->i_method ) - { - /* File methods */ - case INPUT_METHOD_TS_FILE: - p_input->p_open = &input_FileCreateMethod; - p_input->p_read = &input_FileRead; - p_input->p_clean = &input_FileDestroyMethod; - break; - - /* Network methods */ - case INPUT_METHOD_TS_UCAST: - case INPUT_METHOD_TS_MCAST: - case INPUT_METHOD_TS_BCAST: - case INPUT_METHOD_TS_VLAN_BCAST: - p_input->p_open = &input_NetworkCreateMethod; - p_input->p_read = &input_NetworkRead; - p_input->p_clean = &input_NetworkDestroyMethod; - break; - - case INPUT_METHOD_NONE: - default: -#ifdef DEBUG - /* Internal error, which should never happen */ - intf_DbgMsg("input debug: unknow method type %d\n", - p_cfg->i_method); - return( NULL ); -#endif - break; - } + /* Packets read once */ + p_input->i_read_once = INPUT_READ_ONCE; - /* Initialize PSI decoder. */ - intf_DbgMsg("Initializing PSI decoder\n"); - if( input_PsiInit( p_input ) == -1 ) - { - free( p_input ); - return( NULL ); - } + /* Initialize thread properties */ + p_input->b_die = 0; + p_input->b_error = 0; + p_input->b_eof = 0; - /* Initialize PCR decoder. */ - intf_DbgMsg("Initializing PCR decoder\n"); - if( input_PcrInit( p_input ) == -1 ) - { - input_PsiClean( p_input ); - free( p_input ); - return( NULL ); - } + /* Set target */ + p_input->p_source = p_item->psz_name; - /* Initialize netlists. */ - if( input_NetlistOpen( p_input ) ) - { - input_PsiClean( p_input ); - input_PcrClean( p_input ); - free( p_input ); - return( NULL ); - } + /* I have never understood that stuff --Meuuh */ + p_input->pi_status = (pi_status != NULL) ? pi_status : &i_status; + *p_input->pi_status = THREAD_CREATE; -#ifdef STATS - /* Initialize counters. */ - p_input->c_bytes = 0; - p_input->c_payload_bytes = 0; - p_input->c_ts_packets_read = 0; - p_input->c_ts_packets_trashed = 0; -#ifdef DEBUG - p_input->c_loops = 0; -#endif -#endif + /* Initialize stream description */ + p_input->stream.i_es_number = 0; + p_input->stream.i_selected_es_number = 0; + p_input->stream.i_pgrm_number = 0; + p_input->stream.i_new_status = p_input->stream.i_new_rate = 0; + p_input->stream.i_mux_rate = 0; - /* Let the appropriate method open the socket. */ - if( (*(p_input->p_open))( p_input, p_cfg ) == -1 ) - { - input_NetlistClean( p_input ); - input_PsiClean( p_input ); - input_PcrClean( p_input ); - free( p_input ); - return( NULL ); - } + /* no stream, no area */ + p_input->stream.i_area_nb = 0; + p_input->stream.pp_areas = NULL; + p_input->stream.p_selected_area = NULL; + /* By default there is one areas in a stream */ + input_AddArea( p_input ); + p_input->stream.p_selected_area = p_input->stream.pp_areas[0]; + + /* Initialize stream control properties. */ + p_input->stream.control.i_status = PLAYING_S; + p_input->stream.control.i_rate = DEFAULT_RATE; + p_input->stream.control.b_mute = 0; + p_input->stream.control.b_bw = 0; - intf_DbgMsg("input debug: method %d properly initialized the socket\n", - p_input->i_method); + /* Initialize default settings for spawned decoders */ + p_input->p_default_aout = p_main->p_aout; + p_input->p_default_vout = p_main->p_vout; /* Create thread and set locks. */ - p_input->b_die = 0; - pthread_mutex_init( &p_input->netlist.lock, NULL ); - pthread_mutex_init( &p_input->programs_lock, NULL ); - pthread_mutex_init( &p_input->es_lock, NULL ); -#ifdef NO_THREAD - input_Thread( p_input ); -#else - if( pthread_create(&p_input->thread_id, NULL, (void *) input_Thread, - (void *) p_input) ) - { - intf_ErrMsg("input error: can't spawn input thread (%s)\n", - strerror(errno) ); - (*p_input->p_clean)( p_input ); - input_NetlistClean( p_input );; - input_PsiClean( p_input ); - input_PcrClean( p_input ); + vlc_mutex_init( &p_input->stream.stream_lock ); + vlc_cond_init( &p_input->stream.stream_wait ); + vlc_mutex_init( &p_input->stream.control.control_lock ); + if( vlc_thread_create( &p_input->thread_id, "input", (void *) RunThread, + (void *) p_input ) ) + { + intf_ErrMsg( "input error: can't create input thread (%s)", + strerror(errno) ); free( p_input ); return( NULL ); } -#endif - - /* Default setting for new decoders */ - p_input->p_aout = p_cfg->p_aout; + /* If status is NULL, wait until the thread is created */ + if( pi_status == NULL ) + { + do + { + msleep( THREAD_SLEEP ); + } while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR) + && (i_status != THREAD_FATAL) ); + if( i_status != THREAD_READY ) + { + return( NULL ); + } + } return( p_input ); } -/****************************************************************************** +/***************************************************************************** * input_DestroyThread: mark an input thread as zombie - ****************************************************************************** + ***************************************************************************** * This function should not return until the thread is effectively cancelled. - ******************************************************************************/ -void input_DestroyThread( input_thread_t *p_input ) + *****************************************************************************/ +void input_DestroyThread( input_thread_t *p_input, int *pi_status ) { - int i_es_loop; + int i_status; /* thread status */ - intf_DbgMsg("input debug: requesting termination of input thread\n"); - p_input->b_die = 1; /* ask thread to kill itself */ - pthread_join( p_input->thread_id, NULL ); /* wait until it's done */ + /* Set status */ + p_input->pi_status = (pi_status != NULL) ? pi_status : &i_status; + *p_input->pi_status = THREAD_DESTROY; - (*p_input->p_clean)( p_input ); /* close input method */ + /* Request thread destruction */ + p_input->b_die = 1; - /* Destroy all decoder threads. */ - for( i_es_loop = 0; i_es_loop < INPUT_MAX_ES; i_es_loop++ ) + /* Make the thread exit of an eventual vlc_cond_wait() */ + vlc_mutex_lock( &p_input->stream.stream_lock ); + vlc_cond_signal( &p_input->stream.stream_wait ); + vlc_mutex_unlock( &p_input->stream.stream_lock ); + + /* If status is NULL, wait until thread has been destroyed */ + if( pi_status == NULL ) { - if( p_input->pp_selected_es[i_es_loop] ) - { - switch( p_input->pp_selected_es[i_es_loop]->i_type ) - { - case MPEG1_VIDEO_ES: - case MPEG2_VIDEO_ES: - vdec_DestroyThread( (vdec_thread_t*)(p_input->pp_selected_es[i_es_loop]->p_dec) /*, NULL */ ); - break; - case MPEG1_AUDIO_ES: - case MPEG2_AUDIO_ES: - adec_DestroyThread( (adec_thread_t*)(p_input->pp_selected_es[i_es_loop]->p_dec) ); - break; - default: -#ifdef DEBUG - /* This should never happen. */ - intf_DbgMsg("input debug: unknown stream type ! (%d, %d)\n", - p_input->pp_selected_es[i_es_loop]->i_id, - p_input->pp_selected_es[i_es_loop]->i_type); -#endif - break; - } - } - else + do { - /* pp_selected_es should not contain any hole. */ - break; - } + msleep( THREAD_SLEEP ); + } while ( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR) + && (i_status != THREAD_FATAL) ); } - - input_NetlistClean( p_input ); /* clean netlist */ - input_PsiClean( p_input ); /* clean PSI information */ - input_PcrClean( p_input ); /* clean PCR information */ - free( p_input ); /* free input_thread structure */ -} - -#if 0 -/******************************************************************************* - * input_OpenAudioStream: open an audio stream - ******************************************************************************* - * This function spawns an audio decoder and plugs it on the audio output - * thread. - *******************************************************************************/ -int input_OpenAudioStream( input_thread_t *p_input, int i_id ) -{ - /* ?? */ } -/******************************************************************************* - * input_CloseAudioStream: close an audio stream - ******************************************************************************* - * This function destroys an audio decoder. - *******************************************************************************/ -void input_CloseAudioStream( input_thread_t *p_input, int i_id ) +/***************************************************************************** + * RunThread: main thread loop + ***************************************************************************** + * Thread in charge of processing the network packets and demultiplexing. + *****************************************************************************/ +static void RunThread( input_thread_t *p_input ) { - /* ?? */ -} + int i_error, i; -/******************************************************************************* - * input_OpenVideoStream: open a video stream - ******************************************************************************* - * This function spawns a video decoder and plugs it on a video output thread. - *******************************************************************************/ -int input_OpenVideoStream( input_thread_t *p_input, - struct vout_thread_s *p_vout, struct video_cfg_s * p_cfg ) -{ - /* ?? */ -} + if( InitThread( p_input ) ) + { -/******************************************************************************* - * input_CloseVideoStream: close a video stream - ******************************************************************************* - * This function destroys an video decoder. - *******************************************************************************/ -void input_CloseVideoStream( input_thread_t *p_input, int i_id ) -{ - /* ?? */ -} -#endif + /* If we failed, wait before we are killed, and exit */ + *p_input->pi_status = THREAD_ERROR; + p_input->b_error = 1; + ErrorThread( p_input ); + DestroyThread( p_input ); + return; + } -/* following functions are local */ + /* initialization is completed */ + vlc_mutex_lock( &p_input->stream.stream_lock ); + p_input->stream.b_changed = 1; + vlc_mutex_unlock( &p_input->stream.stream_lock ); -/******************************************************************************* - * input_Thread: input thread - ******************************************************************************* - * Thread in charge of processing the network packets and demultiplexing. - *******************************************************************************/ -static void input_Thread( input_thread_t *p_input ) -{ - intf_DbgMsg("input debug 11-1: thread %p is active\n", p_input); - while( !p_input->b_die ) + while( !p_input->b_die && !p_input->b_error && !p_input->b_eof ) { - /* Scatter read the UDP packet from the network or the file. */ - if( (input_ReadPacket( p_input )) == (-1) ) - { - /* ??? Normally, a thread can't kill itself, but we don't have - * any method in case of an error condition ... */ - p_input->b_die = 1; - } + data_packet_t * pp_packets[p_input->i_read_once]; #ifdef STATS p_input->c_loops++; #endif - } - /* Ohoh, we have to die as soon as possible. */ - intf_DbgMsg("input debug: thread %p destroyed\n", p_input); - pthread_exit( 0 ); -} + vlc_mutex_lock( &p_input->stream.stream_lock ); -/******************************************************************************* - * input_ReadPacket: reads a packet from the network or the file - *******************************************************************************/ -static __inline__ int input_ReadPacket( input_thread_t *p_input ) -{ - int i_base_index; /* index of the first free iovec */ - int i_current_index; - int i_packet_size; -#ifdef INPUT_LIFO_TS_NETLIST - int i_meanwhile_released; - int i_currently_removed; -#endif - ts_packet_t * p_ts_packet; + if( p_input->stream.p_selected_area->i_seek != NO_SEEK ) + { + if( p_input->stream.b_seekable && p_input->pf_seek != NULL ) + { + p_input->pf_seek( p_input, + p_input->stream.p_selected_area->i_seek ); - /* In this function, we only care about the TS netlist. PES netlist - * is for the demultiplexer. */ -#ifdef INPUT_LIFO_TS_NETLIST - i_base_index = p_input->netlist.i_ts_index; + for( i = 0; i < p_input->stream.i_pgrm_number; i++ ) + { + pgrm_descriptor_t * p_pgrm + = p_input->stream.pp_programs[i]; + /* Escape all decoders for the stream discontinuity they + * will encounter. */ + input_EscapeDiscontinuity( p_input, p_pgrm ); + + /* Reinitialize synchro. */ + p_pgrm->i_synchro_state = SYNCHRO_REINIT; + } + } + p_input->stream.p_selected_area->i_seek = NO_SEEK; + } - /* Verify that we still have packets in the TS netlist */ - if( (INPUT_MAX_TS + INPUT_TS_READ_ONCE - 1 - p_input->netlist.i_ts_index) <= INPUT_TS_READ_ONCE ) - { - intf_ErrMsg("input error: TS netlist is empty !\n"); - return( -1 ); - } + vlc_mutex_unlock( &p_input->stream.stream_lock ); -#else /* FIFO netlist */ - i_base_index = p_input->netlist.i_ts_start; - if( p_input->netlist.i_ts_start + INPUT_TS_READ_ONCE -1 > INPUT_MAX_TS ) - { - /* The netlist is splitted in 2 parts. We must gather them to consolidate - the FIFO (we make the loop easily in having the same iovec at the far - end and in the beginning of netlist_free). - That's why the netlist is (INPUT_MAX_TS +1) + (INPUT_TS_READ_ONCE -1) - large. */ - memcpy( p_input->netlist.p_ts_free + INPUT_MAX_TS + 1, - p_input->netlist.p_ts_free, - (p_input->netlist.i_ts_start + INPUT_TS_READ_ONCE - 1 - INPUT_MAX_TS) - * sizeof(struct iovec) ); + i_error = p_input->pf_read( p_input, pp_packets ); + + /* Demultiplex read packets. */ + for( i = 0; i < p_input->i_read_once && pp_packets[i] != NULL; i++ ) + { + p_input->pf_demux( p_input, pp_packets[i] ); + } + + if( i_error ) + { + if( i_error == 1 ) + { + /* End of file - we do not set b_die because only the + * interface is allowed to do so. */ + intf_WarnMsg( 1, "input: EOF reached" ); + p_input->b_eof = 1; + } + else + { + p_input->b_error = 1; + } + } } - /* Verify that we still have packets in the TS netlist */ - if( ((p_input->netlist.i_ts_end -1 - p_input->netlist.i_ts_start) & INPUT_MAX_TS) <= INPUT_TS_READ_ONCE ) + if( p_input->b_error || p_input->b_eof ) { - intf_ErrMsg("input error: TS netlist is empty !\n"); - return( -1 ); + ErrorThread( p_input ); } -#endif /* FIFO netlist */ - /* Scatter read the buffer. */ - i_packet_size = (*p_input->p_read)( p_input, - &p_input->netlist.p_ts_free[i_base_index], - INPUT_TS_READ_ONCE ); - if( i_packet_size == (-1) ) + EndThread( p_input ); + + DestroyThread( p_input ); + + intf_DbgMsg("input: Thread end"); +} + +/***************************************************************************** + * InitThread: init the input Thread + *****************************************************************************/ +static int InitThread( input_thread_t * p_input ) +{ + +#ifdef STATS + /* Initialize statistics */ + p_input->c_loops = 0; + p_input->c_bytes = 0; + p_input->c_payload_bytes = 0; + p_input->c_packets_read = 0; + p_input->c_packets_trashed = 0; +#endif + + p_input->p_input_module = module_Need( p_main->p_bank, + MODULE_CAPABILITY_INPUT, + (probedata_t *)p_input ); + + if( p_input->p_input_module == NULL ) { - intf_DbgMsg("Read packet %d %p %d %d\n", i_base_index, - &p_input->netlist.p_ts_free[i_base_index], - p_input->netlist.i_ts_start, - p_input->netlist.i_ts_end); - intf_ErrMsg("input error: readv() failed (%s)\n", strerror(errno)); + intf_ErrMsg( "input error: no suitable input module for `%s'", + p_input->p_source ); return( -1 ); } - if( i_packet_size == 0 ) - { - /* No packet has been received, so stop here. */ - return( 0 ); - } - - /* Demultiplex the TS packets (1..INPUT_TS_READ_ONCE) received. */ - for( i_current_index = i_base_index; - (i_packet_size -= TS_PACKET_SIZE) >= 0; - i_current_index++ ) - { - /* BTW, something REALLY bad could happen if we receive packets with - a wrong size. */ - p_ts_packet = (ts_packet_t*)(p_input->netlist.p_ts_free[i_current_index].iov_base); - /* Don't cry :-), we are allowed to do that cast, because initially, - our buffer was malloc'ed with sizeof(ts_packet_t) */ - - /* Find out if we need this packet and demultiplex. */ - input_SortPacket( p_input /* for current PIDs and netlist */, - p_ts_packet); +#define f p_input->p_input_module->p_functions->input.functions.input + p_input->pf_init = f.pf_init; + p_input->pf_open = f.pf_open; + p_input->pf_close = f.pf_close; + p_input->pf_end = f.pf_end; + p_input->pf_read = f.pf_read; + p_input->pf_set_area = f.pf_set_area; + p_input->pf_demux = f.pf_demux; + p_input->pf_new_packet = f.pf_new_packet; + p_input->pf_new_pes = f.pf_new_pes; + p_input->pf_delete_packet = f.pf_delete_packet; + p_input->pf_delete_pes = f.pf_delete_pes; + p_input->pf_rewind = f.pf_rewind; + p_input->pf_seek = f.pf_seek; +#undef f + p_input->pf_open( p_input ); + + if( p_input->b_error ) + { + /* We barfed -- exit nicely */ + p_input->pf_close( p_input ); + module_Unneed( p_main->p_bank, p_input->p_input_module ); + return( -1 ); } - if( i_packet_size > 0 ) + p_input->pf_init( p_input ); + + if( p_input->b_error ) { - intf_ErrMsg("input error: wrong size\n"); + /* We barfed -- exit nicely */ + p_input->pf_close( p_input ); + module_Unneed( p_main->p_bank, p_input->p_input_module ); return( -1 ); } - /* Remove the TS packets we have just filled from the netlist */ -#ifdef INPUT_LIFO_TS_NETLIST - /* We need to take a lock here while we're calculating index positions. */ - pthread_mutex_lock( &p_input->netlist.lock ); + *p_input->pi_status = THREAD_READY; - i_meanwhile_released = i_base_index - p_input->netlist.i_ts_index; - if( i_meanwhile_released ) - { - /* That's where it becomes funny :-). Since we didn't take locks for - efficiency reasons, other threads (including ourselves, with - input_DemuxPacket) might have released packets to the netlist. - So we have to copy these iovec where they should go. - - BTW, that explains why the TS netlist is - (INPUT_MAX_TS +1) + (TS_READ_ONCE -1) large. */ - - i_currently_removed = i_current_index - i_base_index; - if( i_meanwhile_released < i_currently_removed ) - { - /* Copy all iovecs in that case */ - memcpy( &p_input->netlist.p_ts_free[p_input->netlist.i_ts_index] - + i_currently_removed, - &p_input->netlist.p_ts_free[p_input->netlist.i_ts_index], - i_meanwhile_released * sizeof(struct iovec) ); - } - else - { - /* We have fewer places than items, so we only move - i_currently_removed of them. */ - memcpy( &p_input->netlist.p_ts_free[i_base_index], - &p_input->netlist.p_ts_free[p_input->netlist.i_ts_index], - i_currently_removed * sizeof(struct iovec) ); - } + return( 0 ); +} - /* Update i_netlist_index with the information gathered above. */ - p_input->netlist.i_ts_index += i_currently_removed; - } - else +/***************************************************************************** + * ErrorThread: RunThread() error loop + ***************************************************************************** + * This function is called when an error occured during thread main's loop. + *****************************************************************************/ +static void ErrorThread( input_thread_t *p_input ) +{ + while( !p_input->b_die ) { - /* Nothing happened. */ - p_input->netlist.i_ts_index = i_current_index; + /* Sleep a while */ + msleep( INPUT_IDLE_SLEEP ); } - - pthread_mutex_unlock( &p_input->netlist.lock ); - -#else /* FIFO netlist */ - /* & is modulo ; that's where we make the loop. */ - p_input->netlist.i_ts_start = i_current_index & INPUT_MAX_TS; -#endif - -#ifdef STATS - p_input->c_ts_packets_read += i_current_index - i_base_index; - p_input->c_bytes += (i_current_index - i_base_index) * TS_PACKET_SIZE; -#endif - return( 0 ); } -/******************************************************************************* - * input_SortPacket: find out whether we need that packet - *******************************************************************************/ -static __inline__ void input_SortPacket( input_thread_t *p_input, - ts_packet_t *p_ts_packet ) +/***************************************************************************** + * EndThread: end the input thread + *****************************************************************************/ +static void EndThread( input_thread_t * p_input ) { - int i_current_pid; - int i_es_loop; + int * pi_status; /* thread status */ - /* Verify that sync_byte, error_indicator and scrambling_control are - what we expected. */ - if( !(p_ts_packet->buffer[0] == 0x47) || (p_ts_packet->buffer[1] & 0x80) || - (p_ts_packet->buffer[3] & 0xc0) ) - { - intf_DbgMsg("input debug: invalid TS header (%p)\n", p_ts_packet); - } - else - { - /* Get the PID of the packet. Note that ntohs is needed, for endianness - purposes (see man page). */ - i_current_pid = U16_AT(&p_ts_packet->buffer[1]) & 0x1fff; - -// intf_DbgMsg("input debug: pid %d received (%p)\n", -// i_current_pid, p_ts_packet); - - /* Lock current ES state. */ - pthread_mutex_lock( &p_input->es_lock ); - - /* Verify that we actually want this PID. */ - for( i_es_loop = 0; i_es_loop < INPUT_MAX_SELECTED_ES; i_es_loop++ ) - { - if( p_input->pp_selected_es[i_es_loop] != NULL) - { - if( (*p_input->pp_selected_es[i_es_loop]).i_id - == i_current_pid ) - { - /* Don't need the lock anymore, since the value pointed - out by p_input->pp_selected_es[i_es_loop] can only be - modified from inside the input_thread (by the PSI - decoder): interface thread is only allowed to modify - the pp_selected_es table */ - pthread_mutex_unlock( &p_input->es_lock ); - - /* We're interested. Pass it to the demultiplexer. */ - input_DemuxTS( p_input, p_ts_packet, - p_input->pp_selected_es[i_es_loop] ); - return; - } - } - else - { - /* pp_selected_es should not contain any hole. */ - break; - } - } - pthread_mutex_unlock( &p_input->es_lock ); - } + /* Store status */ + pi_status = p_input->pi_status; + *pi_status = THREAD_END; - /* We weren't interested in receiving this packet. Give it back to the - netlist. */ -// intf_DbgMsg("SortPacket: freeing unwanted TS %p (pid %d)\n", p_ts_packet, -// U16_AT(&p_ts_packet->buffer[1]) & 0x1fff); - input_NetlistFreeTS( p_input, p_ts_packet ); #ifdef STATS - p_input->c_ts_packets_trashed++; + { + struct tms cpu_usage; + times( &cpu_usage ); + + intf_Msg("input stats: cpu usage (user: %d, system: %d)", + cpu_usage.tms_utime, cpu_usage.tms_stime); + } #endif -} -/******************************************************************************* - * input_DemuxTS: first step of demultiplexing: the TS header - ******************************************************************************* - * Stream must also only contain PES and PSI, so PID must have been filtered - *******************************************************************************/ -static __inline__ void input_DemuxTS( input_thread_t *p_input, - ts_packet_t *p_ts_packet, - es_descriptor_t *p_es_descriptor ) -{ - int i_dummy; - boolean_t b_adaption; /* Adaption field is present */ - boolean_t b_payload; /* Packet carries payload */ - boolean_t b_unit_start; /* A PSI or a PES start in the packet */ - boolean_t b_trash = 0; /* Must the packet be trashed ? */ - boolean_t b_lost = 0; /* Was there a packet lost ? */ + /* Free all ES and destroy all decoder threads */ + input_EndStream( p_input ); - ASSERT(p_input); - ASSERT(p_ts_packet); - ASSERT(p_es_descriptor); + /* Free demultiplexer's data */ + p_input->pf_end( p_input ); -#define p (p_ts_packet->buffer) + /* Close stream */ + p_input->pf_close( p_input ); -// intf_DbgMsg("input debug: TS-demultiplexing packet %p, pid %d, number %d\n", -// p_ts_packet, U16_AT(&p[1]) & 0x1fff, p[3] & 0x0f); + /* Release modules */ + module_Unneed( p_main->p_bank, p_input->p_input_module ); -#ifdef STATS - p_es_descriptor->c_packets++; - p_es_descriptor->c_bytes += TS_PACKET_SIZE; -#endif +} - /* Extract flags values from TS common header. */ - b_unit_start = (p[1] & 0x40); - b_adaption = (p[3] & 0x20); - b_payload = (p[3] & 0x10); - - /* Extract adaption field informations if any */ - if( !b_adaption ) - { - /* We don't have any adaptation_field, so payload start immediately - after the 4 byte TS header */ - p_ts_packet->i_payload_start = 4; - } - else - { - /* p[4] is adaptation_field_length minus one */ - p_ts_packet->i_payload_start = 5 + p[4]; +/***************************************************************************** + * DestroyThread: destroy the input thread + *****************************************************************************/ +static void DestroyThread( input_thread_t * p_input ) +{ + int * pi_status; /* thread status */ - /* The adaption field can be limited to the adaptation_field_length byte, - so that there is nothing to do: skip this possibility */ - if( p[4] ) - { - /* If the packet has both adaptation_field and payload, adaptation_field - cannot be more than 182 bytes long; if there is only an adaptation_field, - it must fill the next 183 bytes. */ - if( b_payload ? (p[4] > 182) : (p[4] != 183) ) - { - intf_DbgMsg("input debug: invalid TS adaptation field (%p)\n", - p_ts_packet); -#ifdef STATS - p_es_descriptor->c_invalid_packets++; -#endif - b_trash = 1; - } + /* Store status */ + pi_status = p_input->pi_status; - /* No we are sure that the byte containing flags is present: read it */ - else - { - /* discontinuity_indicator */ - if( p[5] & 0x80 ) - { - intf_DbgMsg("discontinuity_indicator encountered by TS demux " \ - "(position read: %d, saved: %d)\n", p[5] & 0x80, - p_es_descriptor->i_continuity_counter); - - /* If the PID carries the PCR, there will be a system time-base - discontinuity. We let the PCR decoder handle that. */ - p_es_descriptor->b_discontinuity = 1; - - /* There also may be a continuity_counter discontinuity: resynchronise - our counter with the one of the stream */ - p_es_descriptor->i_continuity_counter = (p[3] & 0x0f) - 1; - } + /* Destroy Mutex locks */ + vlc_mutex_destroy( &p_input->stream.control.control_lock ); + vlc_mutex_destroy( &p_input->stream.stream_lock ); + + /* Free input structure */ + free( p_input ); - /* random_access_indicator */ - p_es_descriptor->b_random |= p[5] & 0x40; + /* Update status */ + *pi_status = THREAD_OVER; +} - /* If this is a PCR_PID, and this TS packet contains a PCR, we pass it - along to the PCR decoder. */ - if( (p_es_descriptor->b_pcr) && (p[5] & 0x10) ) - { - /* There should be a PCR field in the packet, check if the adaption - field is long enough to carry it */ - if( p[4] >= 7 ) - { - /* Call the PCR decoder */ - input_PcrDecode( p_input, p_es_descriptor, &p[6] ); - } - } - } - } - } +/***************************************************************************** + * input_FileOpen : open a file descriptor + *****************************************************************************/ +void input_FileOpen( input_thread_t * p_input ) +{ + struct stat stat_info; + int i_stat; - /* Check the continuity of the stream. */ - i_dummy = ((p[3] & 0x0f) - p_es_descriptor->i_continuity_counter) & 0x0f; - if( i_dummy == 1 ) - { - /* Everything is ok, just increase our counter */ - p_es_descriptor->i_continuity_counter++; - } - else + char *psz_name = p_input->p_source; + + /* FIXME: this code ought to be in the plugin so that code can + * be shared with the *_Probe function */ + if( ( i_stat = stat( psz_name, &stat_info ) ) == (-1) ) { - if( !b_payload && i_dummy == 0 ) + int i_size = strlen( psz_name ); + + if( ( i_size > 4 ) + && !strncasecmp( psz_name, "dvd:", 4 ) ) { - /* This is a packet without payload, this is allowed by the draft - As there is nothing interessant in this packet (except PCR that - have already been handled), we can trash the packet. */ - intf_DbgMsg("Packet without payload received by TS demux\n"); - b_trash = 1; + /* get rid of the 'dvd:' stuff and try again */ + psz_name += 4; + i_stat = stat( psz_name, &stat_info ); } - else if( i_dummy <= 0 ) + else if( ( i_size > 5 ) + && !strncasecmp( psz_name, "file:", 5 ) ) { - /* Duplicate packet: mark it as being to be trashed. */ - intf_DbgMsg("Duplicate packet received by TS demux\n"); - b_trash = 1; + /* get rid of the 'file:' stuff and try again */ + psz_name += 5; + i_stat = stat( psz_name, &stat_info ); } - else + + if( i_stat == (-1) ) { - /* This can indicate that we missed a packet or that the - continuity_counter wrapped and we received a dup packet: as we - don't know, do as if we missed a packet to be sure to recover - from this situation */ - intf_DbgMsg("Packet lost by TS demux: current %d, packet %d\n", - p_es_descriptor->i_continuity_counter & 0x0f, - p[3] & 0x0f); - b_lost = 1; - p_es_descriptor->i_continuity_counter = p[3] & 0x0f; + intf_ErrMsg( "input error: cannot stat() file `%s' (%s)", + psz_name, strerror(errno)); + p_input->b_error = 1; + return; } } - /* Trash the packet if it has no payload or if it is bad */ - if( b_trash ) + vlc_mutex_lock( &p_input->stream.stream_lock ); + + /* If we are here we can control the pace... */ + p_input->stream.b_pace_control = 1; + + if( S_ISREG(stat_info.st_mode) || S_ISCHR(stat_info.st_mode) + || S_ISBLK(stat_info.st_mode) ) { - input_NetlistFreeTS( p_input, p_ts_packet ); -#ifdef STATS - p_input->c_ts_packets_trashed++; + p_input->stream.b_seekable = 1; + p_input->stream.p_selected_area->i_size = stat_info.st_size; + } + else if( S_ISFIFO(stat_info.st_mode) +#if !defined( SYS_BEOS ) && !defined( WIN32 ) + || S_ISSOCK(stat_info.st_mode) #endif + ) + { + p_input->stream.b_seekable = 0; + p_input->stream.p_selected_area->i_size = 0; } else { - if( p_es_descriptor->b_psi ) - { - /* The payload contains PSI tables */ - input_DemuxPSI( p_input, p_ts_packet, p_es_descriptor, - b_unit_start, b_lost ); - } - else - { - /* The payload carries a PES stream */ - input_DemuxPES( p_input, p_ts_packet, p_es_descriptor, - b_unit_start, b_lost ); - } + vlc_mutex_unlock( &p_input->stream.stream_lock ); + intf_ErrMsg( "input error: unknown file type for `%s'", + psz_name ); + p_input->b_error = 1; + return; } -#undef p -} - + p_input->stream.p_selected_area->i_tell = 0; + vlc_mutex_unlock( &p_input->stream.stream_lock ); + intf_Msg( "input: opening file `%s'", p_input->p_source ); +#ifndef WIN32 + if( (p_input->i_handle = open( psz_name, + /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) ) +#else + if( (p_input->i_handle = open( psz_name, O_BINARY + /*O_NONBLOCK | O_LARGEFILE*/ )) == (-1) ) +#endif + { + intf_ErrMsg( "input error: cannot open file (%s)", strerror(errno) ); + p_input->b_error = 1; + return; + } +} -/******************************************************************************* - * input_DemuxPES: - ******************************************************************************* - * Gather a PES packet and analyzes its header. - *******************************************************************************/ -static __inline__ void input_DemuxPES( input_thread_t *p_input, - ts_packet_t *p_ts_packet, - es_descriptor_t *p_es_descriptor, - boolean_t b_unit_start, - boolean_t b_packet_lost ) +/***************************************************************************** + * input_FileClose : close a file descriptor + *****************************************************************************/ +void input_FileClose( input_thread_t * p_input ) { - decoder_fifo_t * p_fifo; - u8 i_pes_header_size; - int i_dummy; - pes_packet_t* p_last_pes; - ts_packet_t * p_ts; - int i_ts_payload_size; - - -#define p_pes (p_es_descriptor->p_pes_packet) - - ASSERT(p_input); - ASSERT(p_ts_packet); - ASSERT(p_es_descriptor); + intf_Msg( "input: closing file `%s'", p_input->p_source ); + close( p_input->i_handle ); -// intf_DbgMsg("PES-demultiplexing %p (%p)\n", p_ts_packet, p_pes); + return; +} - /* If we lost data, discard the PES packet we are trying to reassemble - if any and wait for the beginning of a new one in order to synchronise - again */ - if( b_packet_lost && p_pes != NULL ) - { - intf_DbgMsg("PES %p trashed because of packet lost\n", p_pes); - input_NetlistFreePES( p_input, p_pes ); - p_pes = NULL; - } - /* If the TS packet contains the begining of a new PES packet, and if we - were reassembling a PES packet, then the PES should be complete now, - so parse its header and give it to the decoders */ - if( b_unit_start && p_pes != NULL ) +#if !defined( SYS_BEOS ) && !defined( SYS_NTO ) && !defined( WIN32 ) +/***************************************************************************** + * input_NetworkOpen : open a network socket + *****************************************************************************/ +void input_NetworkOpen( input_thread_t * p_input ) +{ + char *psz_server = NULL; + int i_port = 0; + int i_opt; + struct sockaddr_in sock; + char * psz_broadcast; + + /* Are we broadcasting ? */ + psz_broadcast = main_GetPszVariable( INPUT_BROADCAST_VAR, NULL ); + + /* Get the remote server */ + if( p_input->p_source != NULL ) { -// intf_DbgMsg("End of PES packet %p\n", p_pes); - - /* Parse the header. The header has a variable length, but in order - to improve the algorithm, we will read the 14 bytes we may be - interested in */ - p_ts = p_pes->p_first_ts; - i_ts_payload_size = p_ts->i_payload_end - p_ts->i_payload_start; - i_dummy = 0; + psz_server = p_input->p_source; - if(i_ts_payload_size >= PES_HEADER_SIZE) + /* Skip the protocol name */ + while( *psz_server && *psz_server != ':' ) { - /* This part of the header entirely fits in the payload of - the first TS packet */ - p_pes->p_pes_header = &(p_ts->buffer[p_ts->i_payload_start]); + psz_server++; } - else - { - /* This part of the header does not fit in the current TS packet: - copy the part of the header we are interested in to the - p_pes_header_save buffer */ - intf_DbgMsg("Code never tested encourtered, WARNING ! (benny)\n"); - do - { - memcpy(p_pes->p_pes_header_save + i_dummy, - &p_ts->buffer[p_ts->i_payload_start], i_ts_payload_size); - i_dummy += i_ts_payload_size; - - p_ts = p_ts->p_next_ts; - if(!p_ts) - { - /* The payload of the PES packet is shorter than the 14 bytes - we would read. This means that high packet lost occured - so the PES won't be usefull for any decoder. Moreover, - this should never happen so we can trash the packet and - exit roughly without regrets */ - intf_DbgMsg("PES packet too short: trashed\n"); - input_NetlistFreePES( p_input, p_pes ); - p_pes = NULL; - /* Stats ?? */ - return; - } - - i_ts_payload_size = p_ts->i_payload_end - p_ts->i_payload_start; - } - while(i_ts_payload_size + i_dummy < PES_HEADER_SIZE); - - /* This last TS packet is partly header, partly payload, so just - copy the header part */ - memcpy(p_pes->p_pes_header_save + i_dummy, - &p_ts->buffer[p_ts->i_payload_start], - PES_HEADER_SIZE - i_dummy); - /* The header must be read in the buffer not in any TS packet */ - p_pes->p_pes_header = p_pes->p_pes_header_save; - } - - /* Now we have the part of the PES header we were interested in: - parse it */ - - /* First read the 6 header bytes common to all PES packets: - use them to test the PES validity */ - if( (p_pes->p_pes_header[0] || p_pes->p_pes_header[1] || - (p_pes->p_pes_header[2] != 1)) || - /* packet_start_code_prefix != 0x000001 */ - ((i_dummy = U16_AT(p_pes->p_pes_header + 4)) && - (i_dummy + 6 != p_pes->i_pes_size)) ) - /* PES_packet_length is set and != total received payload */ + /* Skip the "://" part */ + while( *psz_server && (*psz_server == ':' || *psz_server == '/') ) { - /* Trash the packet and set p_pes to NULL to be sure the next PES - packet will have its b_data_lost flag set */ - intf_DbgMsg("Corrupted PES packet received: trashed\n"); - input_NetlistFreePES( p_input, p_pes ); - p_pes = NULL; - /* Stats ?? */ + psz_server++; } - else - { - /* The PES packet is valid. Check its type to test if it may - carry additional informations in a header extension */ - p_pes->i_stream_id = p_pes->p_pes_header[3]; - - switch( p_pes->i_stream_id ) - { - case 0xBE: /* Padding */ - case 0xBC: /* Program stream map */ - case 0xBF: /* Private stream 2 */ - case 0xB0: /* ECM */ - case 0xB1: /* EMM */ - case 0xFF: /* Program stream directory */ - case 0xF2: /* DSMCC stream */ - case 0xF8: /* ITU-T H.222.1 type E stream */ - /* The payload begins immediatly after the 6 bytes header, so - we have finished with the parsing */ - i_pes_header_size = 6; - break; - - default: - /* The PES header contains at least 3 more bytes: parse them */ - p_pes->b_data_alignment = p_pes->p_pes_header[6] & 0x10; - p_pes->b_has_pts = p_pes->p_pes_header[7] & 0x4; - i_pes_header_size = 9 + p_pes->p_pes_header[8]; - - /* Now parse the optional header extensions (in the limit of - the 14 bytes */ - if( p_pes->b_has_pts ) - { - pcr_descriptor_t *p_pcr; - /* The PTS field is split in 3 bit records. We have to add - them, and thereafter we substract the 2 marker_bits */ - - p_pcr = p_input->p_pcr; - pthread_mutex_lock( &p_pcr->lock ); - if( p_pcr->delta_clock == 0 ) - { - p_pes->i_pts = 0; - } - else - { - p_pes->i_pts = ( ((s64)p_pes->p_pes_header[9] << 29) + - ((s64)U16_AT(p_pes->p_pes_header + 10) << 14) + - ((s64)U16_AT(p_pes->p_pes_header + 12) >> 1) - - (1 << 14) - (1 << 29) ); - p_pes->i_pts *= 300; - p_pes->i_pts /= 27; - p_pes->i_pts += p_pcr->delta_clock; - if( p_pcr->c_pts == 0 ) - { - p_pcr->delta_decode = (s64)mdate() - p_pes->i_pts + 500000; - } - p_pes->i_pts += p_pcr->delta_decode; - } - p_pcr->c_pts += 1; - pthread_mutex_unlock( &p_pcr->lock ); - } - break; - } - /* Now we've parsed the header, we just have to indicate in some - specific TS packets where the PES payload begins (renumber - i_payload_start), so that the decoders can find the beginning - of their data right out of the box. */ - p_ts = p_pes->p_first_ts; - i_ts_payload_size = p_ts->i_payload_end - p_ts->i_payload_start; - while( i_pes_header_size > i_ts_payload_size ) - { - /* These packets are entirely filled by the PES header. */ - i_pes_header_size -= i_ts_payload_size; - p_ts->i_payload_start = p_ts->i_payload_end; - /* Go to the next TS packet: here we won't have to test it is - not NULL because we trash the PES packets when packet lost - occurs */ - p_ts = p_ts->p_next_ts; - i_ts_payload_size = p_ts->i_payload_end - p_ts->i_payload_start; - } - /* This last packet is partly header, partly payload. */ - p_ts->i_payload_start += i_pes_header_size; + /* Found a server name */ + if( *psz_server ) + { + char *psz_port = psz_server; - /* Now we can eventually put the PES packet in the decoder's - PES fifo */ - switch( p_es_descriptor->i_type ) + /* Skip the hostname part */ + while( *psz_port && *psz_port != ':' ) { - case MPEG1_VIDEO_ES: - case MPEG2_VIDEO_ES: - p_fifo = &(((vdec_thread_t*)(p_es_descriptor->p_dec))->fifo); - break; - case MPEG1_AUDIO_ES: - case MPEG2_AUDIO_ES: - p_fifo = &(((adec_thread_t*)(p_es_descriptor->p_dec))->fifo); - break; - default: - /* This should never happen. */ - intf_DbgMsg("Unknown stream type (%d, %d): PES trashed\n", - p_es_descriptor->i_id, p_es_descriptor->i_type); - p_fifo = NULL; - break; + psz_port++; } - if( p_fifo != NULL ) + /* Found a port name */ + if( *psz_port ) { - pthread_mutex_lock( &p_fifo->data_lock ); - if( DECODER_FIFO_ISFULL( *p_fifo ) ) - { - /* The FIFO is full !!! This should not happen. */ -#ifdef STATS - p_input->c_ts_packets_trashed += p_pes->i_ts_packets; - p_es_descriptor->c_invalid_packets += p_pes->i_ts_packets; -#endif - input_NetlistFreePES( p_input, p_pes ); - intf_DbgMsg("PES trashed - fifo full ! (%d, %d)\n", - p_es_descriptor->i_id, p_es_descriptor->i_type); - } - else - { -// intf_DbgMsg("Putting %p into fifo %p/%d\n", -// p_pes, p_fifo, p_fifo->i_end); - p_fifo->buffer[p_fifo->i_end] = p_pes; - DECODER_FIFO_INCEND( *p_fifo ); + /* Replace ':' with '\0' */ + *psz_port = '\0'; + psz_port++; - /* Warn the decoder that it's got work to do. */ - pthread_cond_signal( &p_fifo->data_wait ); - } - pthread_mutex_unlock( &p_fifo->data_lock ); - } - else - { - intf_DbgMsg("No fifo to receive PES %p: trash\n", p_pes); -#ifdef STATS - p_input->c_ts_packets_trashed += p_pes->i_ts_packets; - p_es_descriptor->c_invalid_packets += p_pes->i_ts_packets; -#endif - input_NetlistFreePES( p_input, p_pes ); + i_port = atoi( psz_port ); } } - } - - - /* If we are at the beginning of a new PES packet, we must fetch a new - PES buffer to begin with the reassembly of this PES packet. This is - also here that we can synchronise with the stream if we we lost - packets or if the decoder has just started */ - if( b_unit_start ) - { - p_last_pes = p_pes; - - /* Get a new one PES from the PES netlist. */ - if( (p_pes = input_NetlistGetPES( p_input )) == (NULL) ) - { - /* PES netlist is empty ! */ - p_input->b_error = 1; - } else { -// intf_DbgMsg("New PES packet %p (first TS: %p)\n", p_pes, p_ts_packet); - - /* Init the PES fields so that the first TS packet could be correctly - added to the PES packet (see below) */ - p_pes->p_first_ts = p_ts_packet; - p_pes->p_last_ts = NULL; - - /* If the last pes packet was null, this means that the synchronisation - was lost and so warn the decoder that he will have to find a way to - recover */ - if( !p_last_pes ) - p_pes->b_data_loss = 1; - - /* Read the b_random_access flag status and then reinit it */ - p_pes->b_random_access = p_es_descriptor->b_random; - p_es_descriptor->b_random = 0; + psz_server = NULL; } } - - /* If we are synchronised with the stream, and so if we are ready to - receive correctly the data, add the TS packet to the current PES - packet */ - if( p_pes != NULL ) + /* Check that we got a valid server */ + if( psz_server == NULL ) { -// intf_DbgMsg("Adding TS %p to PES %p\n", p_ts_packet, p_pes); - - /* Size of the payload carried in the TS packet */ - i_ts_payload_size = p_ts_packet->i_payload_end - - p_ts_packet->i_payload_start; - - /* Update the relations between the TS packets */ - p_ts_packet->p_prev_ts = p_pes->p_last_ts; - p_ts_packet->p_next_ts = NULL; - if( p_pes->i_ts_packets != 0 ) - { - /* Regarder si il serait pas plus efficace de ne creer que les liens - precedent->suivant pour le moment, et les liens suivant->precedent - quand le paquet est termine */ - /* Otherwise it is the first TS packet. */ - p_pes->p_last_ts->p_next_ts = p_ts_packet; - } - /* Now add the TS to the PES packet */ - p_pes->p_last_ts = p_ts_packet; - p_pes->i_ts_packets++; - p_pes->i_pes_size += i_ts_payload_size; - - /* Stats */ -#ifdef STATS - i_dummy = p_ts_packet->i_payload_end - p_ts_packet->i_payload_start; - p_es_descriptor->c_payload_bytes += i_dummy; -#endif + psz_server = main_GetPszVariable( INPUT_SERVER_VAR, + INPUT_SERVER_DEFAULT ); } - else + + /* Check that we got a valid port */ + if( i_port == 0 ) { - /* Since we don't use the TS packet to build a PES packet, we don't - need it anymore, so give it back to the netlist */ -// intf_DbgMsg("Trashing TS %p: no PES being build\n", p_ts_packet); - input_NetlistFreeTS( p_input, p_ts_packet ); + i_port = main_GetIntVariable( INPUT_PORT_VAR, INPUT_PORT_DEFAULT ); } -#undef p_pes -} - + /* Open a SOCK_DGRAM (UDP) socket, in the AF_INET domain, automatic (0) + * protocol */ + p_input->i_handle = socket( AF_INET, SOCK_DGRAM, 0 ); + if( p_input->i_handle == -1 ) + { + intf_ErrMsg("input error: can't create socket : %s", strerror(errno)); + p_input->b_error = 1; + return; + } + /* We may want to reuse an already used socket */ + i_opt = 1; + if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_REUSEADDR, + &i_opt, sizeof( i_opt ) ) == -1 ) + { + intf_ErrMsg("input error: can't configure socket (SO_REUSEADDR: %s)", + strerror(errno)); + close( p_input->i_handle ); + p_input->b_error = 1; + return; + } + /* Increase the receive buffer size to 1/2MB (8Mb/s during 1/2s) to avoid + * packet loss caused by scheduling problems */ + i_opt = 0x80000; + if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_RCVBUF, + &i_opt, sizeof( i_opt ) ) == -1 ) + { + intf_ErrMsg("input error: can't configure socket (SO_RCVBUF: %s)", + strerror(errno)); + close( p_input->i_handle ); + p_input->b_error = 1; + return; + } -/******************************************************************************* - * input_DemuxPSI: - ******************************************************************************* - * Notice that current ES state has been locked by input_SortPacket. (No more true, - * changed by benny - See if it'a ok, and definitely change the code ???????? ) - *******************************************************************************/ -static __inline__ void input_DemuxPSI( input_thread_t *p_input, - ts_packet_t *p_ts_packet, - es_descriptor_t *p_es_descriptor, - boolean_t b_unit_start, boolean_t b_packet_lost ) -{ - int i_data_offset; /* Offset of the interesting data in the TS packet */ - u16 i_data_length; /* Length of those data */ - boolean_t b_first_section; /* Was there another section in the TS packet ? */ + /* Build the local socket */ + if ( network_BuildLocalAddr( &sock, i_port, psz_broadcast ) + == -1 ) + { + close( p_input->i_handle ); + p_input->b_error = 1; + return; + } - ASSERT(p_input); - ASSERT(p_ts_packet); - ASSERT(p_es_descriptor); - -#define p_psi (p_es_descriptor->p_psi_section) - -// intf_DbgMsg( "input debug: PSI demultiplexing %p (%p)\n", p_ts_packet, p_input); - -// intf_DbgMsg( "Packet: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x (unit start: %d)\n", p_ts_packet->buffer[p_ts_packet->i_payload_start], p_ts_packet->buffer[p_ts_packet->i_payload_start+1], p_ts_packet->buffer[p_ts_packet->i_payload_start+2], p_ts_packet->buffer[p_ts_packet->i_payload_start+3], p_ts_packet->buffer[p_ts_packet->i_payload_start+4], p_ts_packet->buffer[p_ts_packet->i_payload_start+5], p_ts_packet->buffer[p_ts_packet->i_payload_start+6], p_ts_packet->buffer[p_ts_packet->i_payload_start+7], p_ts_packet->buffer[p_ts_packet->i_payload_start+8], p_ts_packet->buffer[p_ts_packet->i_payload_start+9], p_ts_packet->buffer[p_ts_packet->i_payload_start+10], p_ts_packet->buffer[p_ts_packet->i_payload_start+11], p_ts_packet->buffer[p_ts_packet->i_payload_start+12], p_ts_packet->buffer[p_ts_packet->i_payload_start+13], p_ts_packet->buffer[p_ts_packet->i_payload_start+14], p_ts_packet->buffer[p_ts_packet->i_payload_start+15], p_ts_packet->buffer[p_ts_packet->i_payload_start+16], p_ts_packet->buffer[p_ts_packet->i_payload_start+17], p_ts_packet->buffer[p_ts_packet->i_payload_start+18], p_ts_packet->buffer[p_ts_packet->i_payload_start+19], p_ts_packet->buffer[p_ts_packet->i_payload_start+20], b_unit_start); - - /* The section we will deal with during the first iteration of the following - loop is the first one contained in the TS packet */ - b_first_section = 1; - - /* Reassemble the pieces of sections contained in the TS packet and decode - the sections that could have been completed */ - do + /* Bind it */ + if( bind( p_input->i_handle, (struct sockaddr *)&sock, + sizeof( sock ) ) < 0 ) { - /* Has the reassembly of a section already began in a previous packet ? */ - if( p_psi->b_running_section ) - { - /* Was data lost since the last TS packet ? */ - if( b_packet_lost ) - { - /* Discard the section and wait for the begining of a new one to resynch */ - p_psi->b_running_section = 0; - intf_DbgMsg( "Section discarded due to packet loss\n" ); - } - else - { - /* The data that complete a previously began section are always at - the beginning of the TS payload... */ - i_data_offset = p_ts_packet->i_payload_start; - /* ...Unless there is a pointer field, that we have to bypass */ - if( b_unit_start ) - i_data_offset ++; -// intf_DbgMsg( "New part of the section received at offset %d\n", i_data_offset ); - } - } - /* We are looking for the beginning of a new section */ - else - { - if( !b_unit_start ) - { - /* Cannot do anything with those data: trash both PSI section and TS packet */ - p_psi->b_running_section = 0; - break; - } - else - { - /* Get the offset at which the data for that section can be found */ - if( b_first_section ) - { - /* The offset is stored in the pointer_field since we are interested in - the first section of the TS packet. Note that the +1 is to bypass - the pointer field */ - i_data_offset = p_ts_packet->i_payload_start + - p_ts_packet->buffer[p_ts_packet->i_payload_start] + 1; - } - else - { - /* Since no gap is allowed between 2 sections in a TS packet, the - offset is given by the end of the previous section. In fact, there - is nothing to do, i_offset was set to the right value in the - previous iteration */ - } -// intf_DbgMsg( "New section beginning at offset %d in TS packet\n", i_data_offset ); - - /* Read the length of that section */ - p_psi->i_length = (U16_AT(&p_ts_packet->buffer[i_data_offset+1]) & 0xFFF) + 3; -// intf_DbgMsg( "Section length %d\n", p_psi->i_length ); - if( p_psi->i_length > PSI_SECTION_SIZE ) - { - /* The TS packet is corrupted, stop here to avoid possible a seg fault */ - intf_DbgMsg( "Section size is too big, aborting its reception\n" ); - break; - } - - /* Init the reassembly of that section */ - p_psi->b_running_section = 1; - p_psi->i_current_position = 0; - } - } - - /* Compute the length of data related to the section in this TS packet */ - if( p_psi->i_length - p_psi->i_current_position > TS_PACKET_SIZE - i_data_offset) - i_data_length = TS_PACKET_SIZE - i_data_offset; - else - i_data_length = p_psi->i_length - p_psi->i_current_position; + intf_ErrMsg("input error: can't bind socket (%s)", strerror(errno)); + close( p_input->i_handle ); + p_input->b_error = 1; + return; + } - /* Copy those data in the section buffer */ - memcpy( &p_psi->buffer[p_psi->i_current_position], &p_ts_packet->buffer[i_data_offset], - i_data_length ); - - /* Interesting data are now after the ones we copied */ - i_data_offset += i_data_length; + /* Build socket for remote connection */ + if ( network_BuildRemoteAddr( &sock, psz_server ) == -1 ) + { + close( p_input->i_handle ); + p_input->b_error = 1; + return; + } - /* Decode the packet if it is now complete */ - if (p_psi->i_length == p_psi->i_current_position + i_data_length) - { - /* Packet is complete, decode it */ -// intf_DbgMsg( "SECTION COMPLETE: starting decoding of its data\n" ); - input_PsiDecode( p_input, p_psi ); - - /* Prepare the buffer to receive a new section */ - p_psi->i_current_position = 0; - p_psi->b_running_section = 0; - - /* The new section won't be the first anymore */ - b_first_section = 0; - } - else - { - /* Prepare the buffer to receive the next part of the section */ - p_psi->i_current_position += i_data_length; -// intf_DbgMsg( "Section not complete, waiting for the end\n" ); - } - -// intf_DbgMsg( "Must loop ? Next data offset: %d, stuffing: %d\n", -// i_data_offset, p_ts_packet->buffer[i_data_offset] ); + /* And connect it ... should we really connect ? */ + if( connect( p_input->i_handle, (struct sockaddr *) &sock, + sizeof( sock ) ) == (-1) ) + { + intf_ErrMsg( "NetworkOpen: can't connect socket : %s", + strerror(errno) ); + close( p_input->i_handle ); + p_input->b_error = 1; + return; } - /* Stop if we reached the end of the packet or stuffing bytes */ - while( i_data_offset < TS_PACKET_SIZE && p_ts_packet->buffer[i_data_offset] != 0xFF ); - /* Relase the TS packet, we don't need it anymore */ - input_NetlistFreeTS( p_input, p_ts_packet ); + /* We can't pace control, but FIXME : bug in meuuh's code to sync PCR + * with the server. */ + p_input->stream.b_pace_control = 1; + p_input->stream.b_seekable = 0; + + return; +} -#undef p_psi +/***************************************************************************** + * input_NetworkClose : close a network socket + *****************************************************************************/ +void input_NetworkClose( input_thread_t * p_input ) +{ + close( p_input->i_handle ); } +#endif