320 lines
9.7 KiB
C
320 lines
9.7 KiB
C
/*
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* $Id: opj_dec_server.c 46 2011-02-17 14:50:55Z kaori $
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*
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* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2011, Professor Benoit Macq
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* Copyright (c) 2010-2011, Kaori Hagihara
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*! \file
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* \brief opj_dec_server is a server to decode JPT-stream and communicate locally with JPIP client, which is coded in java.
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*
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* \section impinst Implementing instructions
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* Launch opj_dec_server from a terminal in the same machine as JPIP client image viewers. \n
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* % ./opj_dec_server \n
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* Keep it alive as long as image viewers are open.\n
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*
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* To quite the opj_dec_server, send a message "quit" through the telnet.\n
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* % telnet localhost 5000\n
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* quit\n
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* Be sure all image viewers are closed.\n
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* Cache file in JPT format is stored in the working directly before it quites.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <unistd.h>
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#include "byte_manager.h"
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#include "msgqueue_manager.h"
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#include "ihdrbox_manager.h"
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#include "imgsock_manager.h"
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#include "jptstream_manager.h"
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#include "cache_manager.h"
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//! maximum length of target name
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#define MAX_LENOFTARGET 128
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//! maximum length of channel identifier
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#define MAX_LENOFCID 30
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/**
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* handle JPTstream message
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*
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* @param[in] connected_socket socket descriptor
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* @param[in] cachelist cache list pointer
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* @param[in,out] jptstream address of jptstream pointer
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* @param[in,out] jptlen address of jptstream length
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* @param[in,out] msgqueue message queue pointer
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*/
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void handle_JPTstreamMSG( int connected_socket, cachelist_param_t *cachelist, Byte_t **jptstream, int *jptlen, msgqueue_param_t *msgqueue);
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/**
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* handle PNM request message
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*
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* @param[in] connected_socket socket descriptor
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* @param[in] jptstream jptstream pointer
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* @param[in] msgqueue message queue pointer
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* @param[in] cachelist cache list pointer
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*/
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void handle_PNMreqMSG( int connected_socket, Byte_t *jptstream, msgqueue_param_t *msgqueue, cachelist_param_t *cachelist);
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/**
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* handle XML request message
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*
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* @param[in] connected_socket socket descriptor
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* @param[in] jptstream address of caching jptstream pointer
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* @param[in] cachelist cache list pointer
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*/
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void handle_XMLreqMSG( int connected_socket, Byte_t *jptstream, cachelist_param_t *cachelist);
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/**
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* handle ChannelID request message
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*
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* @param[in] connected_socket socket descriptor
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* @param[in] cachelist cache list pointer
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*/
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void handle_CIDreqMSG( int connected_socket, cachelist_param_t *cachelist);
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/**
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* handle distroy ChannelID message
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*
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* @param[in] connected_socket socket descriptor
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* @param[in,out] cachelist cache list pointer
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*/
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void handle_dstCIDreqMSG( int connected_socket, cachelist_param_t *cachelist);
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/**
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* handle saving JP2 file request message
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*
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* @param[in] connected_socket socket descriptor
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* @param[in] cachelist cache list pointer
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* @param[in] msgqueue message queue pointer
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* @param[in] jptstream address of caching jptstream pointer
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*/
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void handle_JP2saveMSG( int connected_socket, cachelist_param_t *cachelist, msgqueue_param_t *msgqueue, Byte_t *jptstream);
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int main(int argc, char *argv[]){
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int connected_socket;
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struct sockaddr_in peer_sin;
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Byte_t *jptstream = NULL;
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int jptlen = 0;
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msgqueue_param_t *msgqueue = gene_msgqueue( true, NULL);
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bool quit = false;
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int listening_socket = open_listeningsocket();
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int addrlen = sizeof(peer_sin);
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cachelist_param_t *cachelist = gene_cachelist();
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while(( connected_socket = accept(listening_socket, (struct sockaddr *)&peer_sin, &addrlen))!=-1 ){
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msgtype_t msgtype = identify_clientmsg( connected_socket);
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switch( msgtype){
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case JPTSTREAM:
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handle_JPTstreamMSG( connected_socket, cachelist, &jptstream, &jptlen, msgqueue);
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break;
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case PNMREQ:
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handle_PNMreqMSG( connected_socket, jptstream, msgqueue, cachelist);
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break;
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case XMLREQ:
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handle_XMLreqMSG( connected_socket, jptstream, cachelist);
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break;
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case CIDREQ:
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handle_CIDreqMSG( connected_socket, cachelist);
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break;
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case CIDDST:
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handle_dstCIDreqMSG( connected_socket, cachelist);
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break;
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case JP2SAVE:
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handle_JP2saveMSG( connected_socket, cachelist, msgqueue, jptstream);
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break;
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case QUIT:
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quit = true;
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break;
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case ERROR:
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break;
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}
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printf("cut the connection. listening to port\n");
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if( close(connected_socket) == -1 ){
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perror("close");
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return -1;
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}
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if( quit)
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break;
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}
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if( close(listening_socket) == -1 ){
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perror("close");
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return -1;
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}
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delete_cachelist( &cachelist);
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if( msgqueue)
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delete_msgqueue( &msgqueue);
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save_codestream( jptstream, jptlen, "jpt");
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free( jptstream);
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return 0;
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}
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void handle_JPTstreamMSG( int connected_socket, cachelist_param_t *cachelist,
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Byte_t **jptstream, int *jptlen, msgqueue_param_t *msgqueue)
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{
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Byte_t *newjptstream;
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int newjptlen = 0;
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cache_param_t *cache;
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char target[MAX_LENOFTARGET], cid[MAX_LENOFCID];
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metadatalist_param_t *metadatalist;
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newjptstream = receive_JPTstream( connected_socket, target, cid, &newjptlen);
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parse_stream( newjptstream, newjptlen, *jptlen, msgqueue);
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*jptstream = update_JPTstream( newjptstream, newjptlen, *jptstream, jptlen);
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free( newjptstream);
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metadatalist = gene_metadatalist();
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parse_metamsg( msgqueue, *jptstream, *jptlen, metadatalist);
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// cid registration
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if( target[0] != 0 && cid[0] != 0){
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if((cache = search_cache( target, cachelist)))
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add_cachecid( cid, cache);
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else{
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cache = gene_cache( target, msgqueue->last->csn, cid);
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insert_cache_into_list( cache, cachelist);
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}
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}
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else
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cache = search_cacheBycsn( msgqueue->last->csn, cachelist);
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if( cache->metadatalist)
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delete_metadatalist( &cache->metadatalist);
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cache->metadatalist = metadatalist;
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response_signal( connected_socket, true);
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}
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void handle_PNMreqMSG( int connected_socket, Byte_t *jptstream, msgqueue_param_t *msgqueue, cachelist_param_t *cachelist)
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{
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Byte_t *pnmstream;
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ihdrbox_param_t *ihdrbox;
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char cid[MAX_LENOFCID], tmp[10];
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cache_param_t *cache;
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int fw, fh;
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read_line( connected_socket, cid);
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if(!(cache = search_cacheBycid( cid, cachelist)))
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return;
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read_line( connected_socket, tmp);
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fw = atoi( tmp);
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read_line( connected_socket, tmp);
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fh = atoi( tmp);
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pnmstream = jpt_to_pnm( jptstream, msgqueue, cache->csn, fw, fh, &cache->ihdrbox);
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ihdrbox = cache->ihdrbox;
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send_PNMstream( connected_socket, pnmstream, ihdrbox->width, ihdrbox->height, ihdrbox->nc, ihdrbox->bpc > 8 ? 255 : (1 << ihdrbox->bpc) - 1);
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free( pnmstream);
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}
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void handle_XMLreqMSG( int connected_socket, Byte_t *jptstream, cachelist_param_t *cachelist)
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{
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char cid[MAX_LENOFCID];
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cache_param_t *cache;
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read_line( connected_socket, cid);
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if(!(cache = search_cacheBycid( cid, cachelist)))
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return;
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boxcontents_param_t *boxcontents = cache->metadatalist->last->boxcontents;
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Byte_t *xmlstream = (Byte_t *)malloc( boxcontents->length);
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memcpy( xmlstream, jptstream+boxcontents->offset, boxcontents->length);
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send_XMLstream( connected_socket, xmlstream, boxcontents->length);
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free( xmlstream);
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}
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void handle_CIDreqMSG( int connected_socket, cachelist_param_t *cachelist)
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{
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char target[MAX_LENOFTARGET], *cid = NULL;
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cache_param_t *cache;
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int cidlen = 0;
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read_line( connected_socket, target);
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cache = search_cache( target, cachelist);
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if( cache){
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if( cache->numOfcid > 0){
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cid = cache->cid[ cache->numOfcid-1];
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cidlen = strlen(cid);
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}
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}
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send_CIDstream( connected_socket, cid, cidlen);
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}
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void handle_dstCIDreqMSG( int connected_socket, cachelist_param_t *cachelist)
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{
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char cid[MAX_LENOFCID];
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read_line( connected_socket, cid);
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remove_cachecid( cid, cachelist);
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response_signal( connected_socket, true);
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}
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void handle_JP2saveMSG( int connected_socket, cachelist_param_t *cachelist, msgqueue_param_t *msgqueue, Byte_t *jptstream)
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{
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char cid[MAX_LENOFCID];
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cache_param_t *cache;
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Byte_t *jp2stream;
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Byte8_t jp2len;
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read_line( connected_socket, cid);
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if(!(cache = search_cacheBycid( cid, cachelist)))
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return;
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jp2stream = recons_jp2( msgqueue, jptstream, cache->csn, &jp2len);
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if( jp2stream){
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save_codestream( jp2stream, jp2len, "jp2");
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free( jp2stream);
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}
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}
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