2 Copyright 2004-2005 Chris Tallon, Andreas Vogel
4 This file is part of VOMP.
6 VOMP is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 VOMP is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with VOMP; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "mediafile.h"
25 #include <sys/types.h>
33 MediaFile::MediaFile(ULONG pid){
37 MediaFile::~MediaFile(){
43 const char* extension;
46 {".mp3",MEDIA_TYPE_AUDIO},
47 {".MP3",MEDIA_TYPE_AUDIO},
48 {".jpg",MEDIA_TYPE_PICTURE},
49 {".JPG",MEDIA_TYPE_PICTURE},
50 {".jpeg",MEDIA_TYPE_PICTURE},
51 {".JPEG",MEDIA_TYPE_PICTURE},
52 {".mpg",MEDIA_TYPE_VIDEO},
53 {".MPG",MEDIA_TYPE_VIDEO}
55 //#define NUMTYPES (sizeof(mediatypes)/sizeof(mtype))
58 //helper from vdr tools.c
59 bool endswith(const char *s, const char *p)
61 const char *se = s + strlen(s) - 1;
62 const char *pe = p + strlen(p) - 1;
64 if (*pe-- != *se-- || (se < s && pe >= p))
70 MediaList* MediaFile::getRootList() {
71 //has to be implemented in the derived class
75 ULONG MediaFile::getMediaType(const char * filename) {
76 for (ULONG i=0;i<NUMTYPES;i++) {
77 if (endswith(filename,mediatypes[i].extension)) {
78 return mediatypes[i].type;
81 return MEDIA_TYPE_UNKNOWN;
85 Media * MediaFile::createMedia(const char * dirname, const char * filename, bool withURI) {
88 asprintf(&buffer, "%s/%s", dirname, filename);
90 ULONG mtype=MEDIA_TYPE_UNKNOWN;
91 if (stat(buffer, &st) == 0) {
92 if (S_ISDIR(st.st_mode)) {
96 mtype=getMediaType(filename);
99 //only consider entries we accept by type here
100 if (mtype != MEDIA_TYPE_UNKNOWN) {
102 rt->setMediaType(mtype);
103 rt->setFileName(filename);
104 rt->setTime(st.st_mtime);
105 Log::getInstance()->log("Media",Log::DEBUG,"created Media %s, type=%d",filename,mtype);
107 MediaURI u(providerid,buffer,NULL);
115 MediaList* MediaFile::getMediaList(const MediaURI * parent){
116 ULONG mediaType=parent->getAllowedTypes();
117 Log::getInstance()->log("MediaFile::getMediaList",Log::DEBUG,"parent %s,types=0x%0lx",parent->getName(),mediaType);
119 rt=new MediaList(parent);
120 const char *dirname=parent->getName();
121 //open the directory and read out the entries
122 DIR *d=opendir(dirname);
124 union { // according to "The GNU C Library Reference Manual"
126 char b[offsetof(struct dirent, d_name) + NAME_MAX + 1];
129 while (d != NULL && (readdir_r(d,&u.d,&e) == 0) && e != NULL) {
130 const char * fname=e->d_name;
131 if ( fname == NULL) continue;
132 if (strcmp(fname,".") == 0) continue;
133 if (strcmp(fname,"..") == 0) continue;
134 Media *m=createMedia(dirname,fname);
135 if (m && ( m->getMediaType() & mediaType)) {
136 Log::getInstance()->log("Media",Log::DEBUG,"added entry %s, type=%d",fname,m->getMediaType());
143 if (d != NULL) closedir(d);
148 int MediaFile::openMedium(ULONG channel, const MediaURI * uri, ULLONG * size, ULONG xsize, ULONG ysize) {
149 Log::getInstance()->log("Media::openMedium",Log::DEBUG,"fn=%s,chan=%u",uri->getName(),channel);
151 if (channel <0 || channel >= NUMCHANNELS) return -1;
152 struct ChannelInfo *info=&channels[channel];
153 if (info->file) info->reset();
154 FILE *fp=fopen(uri->getName(),"r");
156 Log::getInstance()->log("Media::openMedium",Log::ERR,"unable to open file fn=%s,chan=%u",uri->getName(),channel);
161 if ( fstat(fileno(fp),&st) == 0) mysize=st.st_size;
163 Log::getInstance()->log("Media::openMedium",Log::ERR,"unable to open file fn=%s,chan=%u",uri->getName(),channel);
167 info->setFilename(uri->getName());
171 info->provider=providerid;
176 int MediaFile::getMediaBlock(ULONG channel, ULLONG offset, ULONG len, ULONG * outlen,
177 unsigned char ** buffer) {
178 Log::getInstance()->log("Media::getMediaBlock",Log::DEBUG,"chan=%u,offset=%llu,len=%lu",channel,offset,len);
180 if (channel <0 || channel >= NUMCHANNELS) return -1;
181 struct ChannelInfo *info=&channels[channel];
183 Log::getInstance()->log("Media::getMediaBlock",Log::ERR,"not open chan=%u",channel);
186 ULLONG cpos=ftell(info->file);
187 if (offset != cpos) {
188 fseek(info->file,offset-cpos,SEEK_CUR);
190 if (offset != (ULLONG)ftell(info->file)) {
191 Log::getInstance()->log("Client", Log::DEBUG, "getMediaBlock pos = %llu not available", offset);
194 if (*buffer == NULL) *buffer=(UCHAR *)malloc(len);
195 if (*buffer == NULL) {
196 Log::getInstance()->log("Media::getMediaBlock",Log::ERR,"uanble to allocate buffer");
199 ULONG amount=fread(*buffer,1,len,info->file);
200 Log::getInstance()->log("Media::getMediaBlock",Log::DEBUG,"readlen=%lu",amount);
206 int MediaFile::closeMediaChannel(ULONG channel){
207 Log::getInstance()->log("Media::closeMediaChannel",Log::DEBUG,"chan=%u",channel);
208 if (channel <0 || channel >= NUMCHANNELS) return -1;
209 struct ChannelInfo *info=&channels[channel];
214 //TODO: fill in more info
215 int MediaFile::getMediaInfo(ULONG channel, MediaInfo * result){
216 Log::getInstance()->log("Media::getMediaInfo",Log::DEBUG,"chan=%u",channel);
217 if (channel <0 || channel >= NUMCHANNELS) return -1;
218 struct ChannelInfo *info=&channels[channel];
219 if (! info->file) return -1;
220 result->size=info->size;
221 result->canPosition=true;