stream/stream.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5
   6 #include <sys/types.h>
   7 #include <sys/stat.h>
   8 #ifndef __MINGW32__
   9 #include <sys/ioctl.h>
  10 #include <sys/wait.h>
  11 #endif
  12 #include <fcntl.h>
  13 #include <strings.h>
  14
  15 #include "config.h"
  16
  17 #ifndef HAVE_WINSOCK2
  18 #define closesocket close
  19 #else
  20 #include <winsock2.h>
  21 #endif
  22
  23 #include "mp_msg.h"
  24 #include "help_mp.h"
  25 #include "osdep/shmem.h"
  26
  27 #include "stream.h"
  28 #include "libmpdemux/demuxer.h"
  29
  30 #include "m_option.h"
  31 #include "m_struct.h"
  32
  33 #include "cache2.h"
  34
  35 //#include "vcd_read_bincue.h"
  36
  37 struct input_ctx;
  38 static int (*stream_check_interrupt_cb)(struct input_ctx *ctx, int time);
  39 static struct input_ctx *stream_check_interrupt_ctx;
  40
  41 extern const stream_info_t stream_info_vcd;
  42 extern const stream_info_t stream_info_cdda;
  43 extern const stream_info_t stream_info_netstream;
  44 extern const stream_info_t stream_info_pnm;
  45 extern const stream_info_t stream_info_asf;
  46 extern const stream_info_t stream_info_rtsp;
  47 extern const stream_info_t stream_info_rtp;
  48 extern const stream_info_t stream_info_udp;
  49 extern const stream_info_t stream_info_http1;
  50 extern const stream_info_t stream_info_http2;
  51 extern const stream_info_t stream_info_dvb;
  52 extern const stream_info_t stream_info_tv;
  53 extern const stream_info_t stream_info_radio;
  54 extern const stream_info_t stream_info_pvr;
  55 extern const stream_info_t stream_info_ftp;
  56 extern const stream_info_t stream_info_vstream;
  57 extern const stream_info_t stream_info_dvdnav;
  58 extern const stream_info_t stream_info_smb;
  59 extern const stream_info_t stream_info_sdp;
  60 extern const stream_info_t stream_info_rtsp_sip;
  61
  62 extern const stream_info_t stream_info_cue;
  63 extern const stream_info_t stream_info_null;
  64 extern const stream_info_t stream_info_mf;
  65 extern const stream_info_t stream_info_file;
  66 extern const stream_info_t stream_info_ifo;
  67 extern const stream_info_t stream_info_dvd;
  68
  69 static const stream_info_t* const auto_open_streams[] = {
  70 #ifdef CONFIG_VCD
  71   &stream_info_vcd,
  72 #endif
  73 #ifdef CONFIG_CDDA
  74   &stream_info_cdda,
  75 #endif
  76 #ifdef CONFIG_NETWORK
  77   &stream_info_netstream,
  78   &stream_info_http1,
  79   &stream_info_asf,
  80   &stream_info_pnm,
  81   &stream_info_rtsp,
  82 #ifdef CONFIG_LIVE555
  83   &stream_info_sdp,
  84   &stream_info_rtsp_sip,
  85 #endif
  86   &stream_info_rtp,
  87   &stream_info_udp,
  88   &stream_info_http2,
  89 #endif
  90 #ifdef CONFIG_DVBIN
  91   &stream_info_dvb,
  92 #endif
  93 #ifdef CONFIG_TV
  94   &stream_info_tv,
  95 #endif
  96 #ifdef CONFIG_RADIO
  97   &stream_info_radio,
  98 #endif
  99 #ifdef CONFIG_PVR
 100   &stream_info_pvr,
 101 #endif
 102 #ifdef CONFIG_FTP
 103   &stream_info_ftp,
 104 #endif
 105 #ifdef CONFIG_VSTREAM
 106   &stream_info_vstream,
 107 #endif
 108 #ifdef CONFIG_LIBSMBCLIENT
 109   &stream_info_smb,
 110 #endif
 111   &stream_info_cue,
 112 #ifdef CONFIG_DVDREAD
 113   &stream_info_ifo,
 114   &stream_info_dvd,
 115 #endif
 116 #ifdef CONFIG_DVDNAV
 117   &stream_info_dvdnav,
 118 #endif
 119
 120   &stream_info_null,
 121   &stream_info_mf,
 122   &stream_info_file,
 123   NULL
 124 };
 125
 126 static stream_t *open_stream_plugin(const stream_info_t *sinfo, char *filename,
 127                                     int mode, struct MPOpts *options,
 128                                     int *file_format, int *ret,
 129                                     char **redirected_url)
 130 {
 131   void* arg = NULL;
 132   stream_t* s;
 133   m_struct_t* desc = (m_struct_t*)sinfo->opts;
 134
 135   // Parse options
 136   if(desc) {
 137     arg = m_struct_alloc(desc);
 138     if(sinfo->opts_url) {
 139       m_option_t url_opt =
 140         { "stream url", arg , CONF_TYPE_CUSTOM_URL, 0, 0 ,0, sinfo->opts };
 141       if(m_option_parse(&url_opt,"stream url",filename,arg,M_CONFIG_FILE) < 0) {
 142         mp_msg(MSGT_OPEN,MSGL_ERR, "URL parsing failed on url %s\n",filename);
 143         m_struct_free(desc,arg);
 144         return NULL;
 145       }
 146     }
 147   }
 148   s = new_stream(-2,-2);
 149   s->opts = options;
 150   s->url=strdup(filename);
 151   s->flags |= mode;
 152   *ret = sinfo->open(s,mode,arg,file_format);
 153   if((*ret) != STREAM_OK) {
 154 #ifdef CONFIG_NETWORK
 155     if (*ret == STREAM_REDIRECTED && redirected_url) {
 156         if (s->streaming_ctrl && s->streaming_ctrl->url
 157             && s->streaming_ctrl->url->url)
 158           *redirected_url = strdup(s->streaming_ctrl->url->url);
 159         else
 160           *redirected_url = NULL;
 161     }
 162     streaming_ctrl_free(s->streaming_ctrl);
 163 #endif
 164     free(s->url);
 165     free(s);
 166     return NULL;
 167   }
 168   if(s->type <= -2)
 169     mp_msg(MSGT_OPEN,MSGL_WARN, "Warning streams need a type !!!!\n");
 170   if(s->flags & STREAM_SEEK && !s->seek)
 171     s->flags &= ~STREAM_SEEK;
 172   if(s->seek && !(s->flags & STREAM_SEEK))
 173     s->flags |= STREAM_SEEK;
 174
 175   s->mode = mode;
 176
 177   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: [%s] %s\n",sinfo->name,filename);
 178   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Description: %s\n",sinfo->info);
 179   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Author: %s\n", sinfo->author);
 180   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Comment: %s\n", sinfo->comment);
 181
 182   return s;
 183 }
 184
 185
 186 stream_t *open_stream_full(char *filename,int mode, struct MPOpts *options,
 187                            int* file_format)
 188 {
 189   int i,j,l,r;
 190   const stream_info_t* sinfo;
 191   stream_t* s;
 192   char *redirected_url = NULL;
 193
 194   for(i = 0 ; auto_open_streams[i] ; i++) {
 195     sinfo = auto_open_streams[i];
 196     if(!sinfo->protocols) {
 197       mp_msg(MSGT_OPEN,MSGL_WARN, "Stream type %s has protocols == NULL, it's a bug\n", sinfo->name);
 198       continue;
 199     }
 200     for(j = 0 ; sinfo->protocols[j] ; j++) {
 201       l = strlen(sinfo->protocols[j]);
 202       // l == 0 => Don't do protocol matching (ie network and filenames)
 203       if((l == 0 && !strstr(filename, "://")) ||
 204          ((strncasecmp(sinfo->protocols[j],filename,l) == 0) &&
 205                       (strncmp("://",filename+l,3) == 0))) {
 206         *file_format = DEMUXER_TYPE_UNKNOWN;
 207         s = open_stream_plugin(sinfo,filename,mode,options,file_format,&r,
 208                                 &redirected_url);
 209         if(s) return s;
 210         if(r == STREAM_REDIRECTED && redirected_url) {
 211           mp_msg(MSGT_OPEN,MSGL_V, "[%s] open %s redirected to %s\n",
 212                  sinfo->info, filename, redirected_url);
 213           s = open_stream_full(redirected_url, mode, options, file_format);
 214           free(redirected_url);
 215           return s;
 216         }
 217         else if(r != STREAM_UNSUPPORTED) {
 218           mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_FailedToOpen,filename);
 219           return NULL;
 220         }
 221         break;
 222       }
 223     }
 224   }
 225
 226   mp_msg(MSGT_OPEN,MSGL_ERR, "No stream found to handle url %s\n",filename);
 227   return NULL;
 228 }
 229
 230 stream_t *open_output_stream(char *filename, struct MPOpts *options)
 231 {
 232   int file_format; //unused
 233   if(!filename) {
 234     mp_msg(MSGT_OPEN,MSGL_ERR,"open_output_stream(), NULL filename, report this bug\n");
 235     return NULL;
 236   }
 237
 238   return open_stream_full(filename,STREAM_WRITE,options,&file_format);
 239 }
 240
 241 //=================== STREAMER =========================
 242
 243 int stream_fill_buffer(stream_t *s){
 244   int len;
 245   if (/*s->fd == NULL ||*/ s->eof) { s->buf_pos = s->buf_len = 0; return 0; }
 246   switch(s->type){
 247   case STREAMTYPE_STREAM:
 248 #ifdef CONFIG_NETWORK
 249     if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_read ) {
 250             len=s->streaming_ctrl->streaming_read(s->fd,s->buffer,STREAM_BUFFER_SIZE, s->streaming_ctrl);break;
 251     } else {
 252       len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);break;
 253     }
 254 #else
 255     len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);break;
 256 #endif
 257   case STREAMTYPE_DS:
 258     len = demux_read_data((demux_stream_t*)s->priv,s->buffer,STREAM_BUFFER_SIZE);
 259     break;
 260
 261
 262   default:
 263     len= s->fill_buffer ? s->fill_buffer(s,s->buffer,STREAM_BUFFER_SIZE) : 0;
 264   }
 265   if(len<=0){ s->eof=1; s->buf_pos=s->buf_len=0; return 0; }
 266   s->buf_pos=0;
 267   s->buf_len=len;
 268   s->pos+=len;
 269 //  printf("[%d]",len);fflush(stdout);
 270   return len;
 271 }
 272
 273 int stream_write_buffer(stream_t *s, unsigned char *buf, int len) {
 274   int rd;
 275   if(!s->write_buffer)
 276     return -1;
 277   rd = s->write_buffer(s, buf, len);
 278   if(rd < 0)
 279     return -1;
 280   s->pos += rd;
 281   return rd;
 282 }
 283
 284 int stream_seek_long(stream_t *s,off_t pos){
 285 off_t newpos=0;
 286
 287 //  if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ) printf("seek_long to 0x%X\n",(unsigned int)pos);
 288
 289   s->buf_pos=s->buf_len=0;
 290
 291   if(s->mode == STREAM_WRITE) {
 292     if(!s->seek || !s->seek(s,pos))
 293       return 0;
 294     return 1;
 295   }
 296
 297   if(s->sector_size)
 298       newpos = (pos/s->sector_size)*s->sector_size;
 299   else
 300       newpos = pos&(~((off_t)STREAM_BUFFER_SIZE-1));
 301
 302 if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ){
 303   mp_msg(MSGT_STREAM,MSGL_DBG3, "s->pos=%"PRIX64"  newpos=%"PRIX64"  new_bufpos=%"PRIX64"  buflen=%X  \n",
 304     (int64_t)s->pos,(int64_t)newpos,(int64_t)pos,s->buf_len);
 305 }
 306   pos-=newpos;
 307
 308 if(newpos==0 || newpos!=s->pos){
 309   switch(s->type){
 310   case STREAMTYPE_STREAM:
 311     //s->pos=newpos; // real seek
 312     // Some streaming protocol allow to seek backward and forward
 313     // A function call that return -1 can tell that the protocol
 314     // doesn't support seeking.
 315 #ifdef CONFIG_NETWORK
 316     if(s->seek) { // new stream seek is much cleaner than streaming_ctrl one
 317       if(!s->seek(s,newpos)) {
 318         mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
 319         return 0;
 320       }
 321       break;
 322     }
 323
 324     if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_seek ) {
 325       if( s->streaming_ctrl->streaming_seek( s->fd, pos, s->streaming_ctrl )<0 ) {
 326         mp_msg(MSGT_STREAM,MSGL_INFO,"Stream not seekable!\n");
 327         return 1;
 328       }
 329     }
 330 #else
 331     if(newpos<s->pos){
 332       mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek backward in linear streams!\n");
 333       return 1;
 334     }
 335     while(s->pos<newpos){
 336       if(stream_fill_buffer(s)<=0) break; // EOF
 337     }
 338 #endif
 339     break;
 340   default:
 341     // This should at the beginning as soon as all streams are converted
 342     if(!s->seek)
 343       return 0;
 344     // Now seek
 345     if(!s->seek(s,newpos)) {
 346       mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
 347       return 0;
 348     }
 349   }
 350 //   putchar('.');fflush(stdout);
 351 //} else {
 352 //   putchar('%');fflush(stdout);
 353 }
 354
 355 while(stream_fill_buffer(s) > 0 && pos >= 0) {
 356   if(pos<=s->buf_len){
 357     s->buf_pos=pos; // byte position in sector
 358     return 1;
 359   }
 360   pos -= s->buf_len;
 361 }
 362
 363 //  if(pos==s->buf_len) printf("XXX Seek to last byte of file -> EOF\n");
 364
 365   mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%"PRIX64" !\n",(int64_t)(pos+newpos));
 366   return 0;
 367 }
 368
 369
 370 void stream_reset(stream_t *s){
 371   if(s->eof){
 372     s->pos=0; //ftell(f);
 373 //    s->buf_pos=s->buf_len=0;
 374     s->eof=0;
 375   }
 376   if(s->control) s->control(s,STREAM_CTRL_RESET,NULL);
 377   //stream_seek(s,0);
 378 }
 379
 380 int stream_control(stream_t *s, int cmd, void *arg){
 381   if(!s->control) return STREAM_UNSUPPORTED;
 382 #ifdef CONFIG_STREAM_CACHE
 383   if (s->cache_pid)
 384     return cache_do_control(s, cmd, arg);
 385 #endif
 386   return s->control(s, cmd, arg);
 387 }
 388
 389 stream_t* new_memory_stream(unsigned char* data,int len){
 390   stream_t *s;
 391
 392   if(len < 0)
 393     return NULL;
 394   s=malloc(sizeof(stream_t)+len);
 395   memset(s,0,sizeof(stream_t));
 396   s->fd=-1;
 397   s->type=STREAMTYPE_MEMORY;
 398   s->buf_pos=0; s->buf_len=len;
 399   s->start_pos=0; s->end_pos=len;
 400   stream_reset(s);
 401   s->pos=len;
 402   memcpy(s->buffer,data,len);
 403   return s;
 404 }
 405
 406 stream_t* new_stream(int fd,int type){
 407   stream_t *s=malloc(sizeof(stream_t));
 408   if(s==NULL) return NULL;
 409   memset(s,0,sizeof(stream_t));
 410
 411 #ifdef HAVE_WINSOCK2
 412   {
 413     WSADATA wsdata;
 414     int temp = WSAStartup(0x0202, &wsdata); // there might be a better place for this (-> later)
 415     mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 init: %i\n", temp);
 416   }
 417 #endif
 418
 419   s->fd=fd;
 420   s->type=type;
 421   s->buf_pos=s->buf_len=0;
 422   s->start_pos=s->end_pos=0;
 423   s->priv=NULL;
 424   s->url=NULL;
 425   s->cache_pid=0;
 426   stream_reset(s);
 427   return s;
 428 }
 429
 430 void free_stream(stream_t *s){
 431 //  printf("\n*** free_stream() called ***\n");
 432 #ifdef CONFIG_STREAM_CACHE
 433   if(s->cache_pid) {
 434     cache_uninit(s);
 435   }
 436 #endif
 437   if(s->close) s->close(s);
 438   if(s->fd>0){
 439     /* on unix we define closesocket to close
 440        on windows however we have to distinguish between
 441        network socket and file */
 442     if(s->url && strstr(s->url,"://"))
 443       closesocket(s->fd);
 444     else close(s->fd);
 445   }
 446 #ifdef HAVE_WINSOCK2
 447   mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 uninit\n");
 448   WSACleanup(); // there might be a better place for this (-> later)
 449 #endif
 450   // Disabled atm, i don't like that. s->priv can be anything after all
 451   // streams should destroy their priv on close
 452   //if(s->priv) free(s->priv);
 453   if(s->url) free(s->url);
 454   free(s);
 455 }
 456
 457 stream_t* new_ds_stream(demux_stream_t *ds) {
 458   stream_t* s = new_stream(-1,STREAMTYPE_DS);
 459   s->priv = ds;
 460   return s;
 461 }
 462
 463 void stream_set_interrupt_callback(int (*cb)(struct input_ctx *, int),
 464                                    struct input_ctx *ctx)
 465 {
 466     stream_check_interrupt_cb = cb;
 467     stream_check_interrupt_ctx = ctx;
 468 }
 469
 470 int stream_check_interrupt(int time) {
 471     if(!stream_check_interrupt_cb) return 0;
 472     return stream_check_interrupt_cb(stream_check_interrupt_ctx, time);
 473 }