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 #if HAVE_WINSOCK2_H
  18 #include <winsock2.h>
  19 #endif
  20
  21 #include "mp_msg.h"
  22 #include "help_mp.h"
  23 #include "osdep/shmem.h"
  24 #include "network.h"
  25 #include "stream.h"
  26 #include "libmpdemux/demuxer.h"
  27
  28 #include "m_option.h"
  29 #include "m_struct.h"
  30
  31 #include "cache2.h"
  32
  33 //#include "vcd_read_bincue.h"
  34
  35 struct input_ctx;
  36 static int (*stream_check_interrupt_cb)(struct input_ctx *ctx, int time);
  37 static struct input_ctx *stream_check_interrupt_ctx;
  38
  39 extern const stream_info_t stream_info_vcd;
  40 extern const stream_info_t stream_info_cdda;
  41 extern const stream_info_t stream_info_netstream;
  42 extern const stream_info_t stream_info_pnm;
  43 extern const stream_info_t stream_info_asf;
  44 extern const stream_info_t stream_info_rtsp;
  45 extern const stream_info_t stream_info_rtp;
  46 extern const stream_info_t stream_info_udp;
  47 extern const stream_info_t stream_info_http1;
  48 extern const stream_info_t stream_info_http2;
  49 extern const stream_info_t stream_info_dvb;
  50 extern const stream_info_t stream_info_tv;
  51 extern const stream_info_t stream_info_radio;
  52 extern const stream_info_t stream_info_pvr;
  53 extern const stream_info_t stream_info_ftp;
  54 extern const stream_info_t stream_info_vstream;
  55 extern const stream_info_t stream_info_dvdnav;
  56 extern const stream_info_t stream_info_smb;
  57 extern const stream_info_t stream_info_sdp;
  58 extern const stream_info_t stream_info_rtsp_sip;
  59
  60 extern const stream_info_t stream_info_cue;
  61 extern const stream_info_t stream_info_null;
  62 extern const stream_info_t stream_info_mf;
  63 extern const stream_info_t stream_info_file;
  64 extern const stream_info_t stream_info_ifo;
  65 extern const stream_info_t stream_info_dvd;
  66
  67 static const stream_info_t* const auto_open_streams[] = {
  68 #ifdef CONFIG_VCD
  69   &stream_info_vcd,
  70 #endif
  71 #ifdef CONFIG_CDDA
  72   &stream_info_cdda,
  73 #endif
  74 #ifdef CONFIG_NETWORK
  75   &stream_info_netstream,
  76   &stream_info_http1,
  77   &stream_info_asf,
  78   &stream_info_pnm,
  79   &stream_info_rtsp,
  80 #ifdef CONFIG_LIVE555
  81   &stream_info_sdp,
  82   &stream_info_rtsp_sip,
  83 #endif
  84   &stream_info_rtp,
  85   &stream_info_udp,
  86   &stream_info_http2,
  87 #endif
  88 #ifdef CONFIG_DVBIN
  89   &stream_info_dvb,
  90 #endif
  91 #ifdef CONFIG_TV
  92   &stream_info_tv,
  93 #endif
  94 #ifdef CONFIG_RADIO
  95   &stream_info_radio,
  96 #endif
  97 #ifdef CONFIG_PVR
  98   &stream_info_pvr,
  99 #endif
 100 #ifdef CONFIG_FTP
 101   &stream_info_ftp,
 102 #endif
 103 #ifdef CONFIG_VSTREAM
 104   &stream_info_vstream,
 105 #endif
 106 #ifdef CONFIG_LIBSMBCLIENT
 107   &stream_info_smb,
 108 #endif
 109   &stream_info_cue,
 110 #ifdef CONFIG_DVDREAD
 111   &stream_info_ifo,
 112   &stream_info_dvd,
 113 #endif
 114 #ifdef CONFIG_DVDNAV
 115   &stream_info_dvdnav,
 116 #endif
 117
 118   &stream_info_null,
 119   &stream_info_mf,
 120   &stream_info_file,
 121   NULL
 122 };
 123
 124 static stream_t *open_stream_plugin(const stream_info_t *sinfo, char *filename,
 125                                     int mode, struct MPOpts *options,
 126                                     int *file_format, int *ret,
 127                                     char **redirected_url)
 128 {
 129   void* arg = NULL;
 130   stream_t* s;
 131   m_struct_t* desc = (m_struct_t*)sinfo->opts;
 132
 133   // Parse options
 134   if(desc) {
 135     arg = m_struct_alloc(desc);
 136     if(sinfo->opts_url) {
 137       m_option_t url_opt =
 138         { "stream url", arg , CONF_TYPE_CUSTOM_URL, 0, 0 ,0, sinfo->opts };
 139       if(m_option_parse(&url_opt,"stream url",filename,arg,M_CONFIG_FILE) < 0) {
 140         mp_msg(MSGT_OPEN,MSGL_ERR, "URL parsing failed on url %s\n",filename);
 141         m_struct_free(desc,arg);
 142         return NULL;
 143       }
 144     }
 145   }
 146   s = new_stream(-2,-2);
 147   s->opts = options;
 148   s->url=strdup(filename);
 149   s->flags |= mode;
 150   *ret = sinfo->open(s,mode,arg,file_format);
 151   if((*ret) != STREAM_OK) {
 152 #ifdef CONFIG_NETWORK
 153     if (*ret == STREAM_REDIRECTED && redirected_url) {
 154         if (s->streaming_ctrl && s->streaming_ctrl->url
 155             && s->streaming_ctrl->url->url)
 156           *redirected_url = strdup(s->streaming_ctrl->url->url);
 157         else
 158           *redirected_url = NULL;
 159     }
 160     streaming_ctrl_free(s->streaming_ctrl);
 161 #endif
 162     free(s->url);
 163     free(s);
 164     return NULL;
 165   }
 166   if(s->type <= -2)
 167     mp_msg(MSGT_OPEN,MSGL_WARN, "Warning streams need a type !!!!\n");
 168   if(s->flags & STREAM_SEEK && !s->seek)
 169     s->flags &= ~STREAM_SEEK;
 170   if(s->seek && !(s->flags & STREAM_SEEK))
 171     s->flags |= STREAM_SEEK;
 172
 173   s->mode = mode;
 174
 175   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: [%s] %s\n",sinfo->name,filename);
 176   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Description: %s\n",sinfo->info);
 177   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Author: %s\n", sinfo->author);
 178   mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Comment: %s\n", sinfo->comment);
 179
 180   return s;
 181 }
 182
 183
 184 stream_t *open_stream_full(char *filename,int mode, struct MPOpts *options,
 185                            int* file_format)
 186 {
 187   int i,j,l,r;
 188   const stream_info_t* sinfo;
 189   stream_t* s;
 190   char *redirected_url = NULL;
 191
 192   for(i = 0 ; auto_open_streams[i] ; i++) {
 193     sinfo = auto_open_streams[i];
 194     if(!sinfo->protocols) {
 195       mp_msg(MSGT_OPEN,MSGL_WARN, "Stream type %s has protocols == NULL, it's a bug\n", sinfo->name);
 196       continue;
 197     }
 198     for(j = 0 ; sinfo->protocols[j] ; j++) {
 199       l = strlen(sinfo->protocols[j]);
 200       // l == 0 => Don't do protocol matching (ie network and filenames)
 201       if((l == 0 && !strstr(filename, "://")) ||
 202          ((strncasecmp(sinfo->protocols[j],filename,l) == 0) &&
 203                       (strncmp("://",filename+l,3) == 0))) {
 204         *file_format = DEMUXER_TYPE_UNKNOWN;
 205         s = open_stream_plugin(sinfo,filename,mode,options,file_format,&r,
 206                                 &redirected_url);
 207         if(s) return s;
 208         if(r == STREAM_REDIRECTED && redirected_url) {
 209           mp_msg(MSGT_OPEN,MSGL_V, "[%s] open %s redirected to %s\n",
 210                  sinfo->info, filename, redirected_url);
 211           s = open_stream_full(redirected_url, mode, options, file_format);
 212           free(redirected_url);
 213           return s;
 214         }
 215         else if(r != STREAM_UNSUPPORTED) {
 216           mp_tmsg(MSGT_OPEN,MSGL_ERR, "Failed to open %s.\n",filename);
 217           return NULL;
 218         }
 219         break;
 220       }
 221     }
 222   }
 223
 224   mp_msg(MSGT_OPEN,MSGL_ERR, "No stream found to handle url %s\n",filename);
 225   return NULL;
 226 }
 227
 228 stream_t *open_output_stream(char *filename, struct MPOpts *options)
 229 {
 230   int file_format; //unused
 231   if(!filename) {
 232     mp_msg(MSGT_OPEN,MSGL_ERR,"open_output_stream(), NULL filename, report this bug\n");
 233     return NULL;
 234   }
 235
 236   return open_stream_full(filename,STREAM_WRITE,options,&file_format);
 237 }
 238
 239 //=================== STREAMER =========================
 240
 241 int stream_fill_buffer(stream_t *s){
 242   int len;
 243   if (/*s->fd == NULL ||*/ s->eof) { s->buf_pos = s->buf_len = 0; return 0; }
 244   switch(s->type){
 245   case STREAMTYPE_STREAM:
 246 #ifdef CONFIG_NETWORK
 247     if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_read ) {
 248             len=s->streaming_ctrl->streaming_read(s->fd,s->buffer,STREAM_BUFFER_SIZE, s->streaming_ctrl);
 249     } else
 250 #endif
 251       len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);
 252     break;
 253   case STREAMTYPE_DS:
 254     len = demux_read_data((demux_stream_t*)s->priv,s->buffer,STREAM_BUFFER_SIZE);
 255     break;
 256
 257
 258   default:
 259     len= s->fill_buffer ? s->fill_buffer(s,s->buffer,STREAM_BUFFER_SIZE) : 0;
 260   }
 261   if(len<=0){ s->eof=1; s->buf_pos=s->buf_len=0; return 0; }
 262   s->buf_pos=0;
 263   s->buf_len=len;
 264   s->pos+=len;
 265 //  printf("[%d]",len);fflush(stdout);
 266   return len;
 267 }
 268
 269 int stream_write_buffer(stream_t *s, unsigned char *buf, int len) {
 270   int rd;
 271   if(!s->write_buffer)
 272     return -1;
 273   rd = s->write_buffer(s, buf, len);
 274   if(rd < 0)
 275     return -1;
 276   s->pos += rd;
 277   return rd;
 278 }
 279
 280 int stream_seek_long(stream_t *s,off_t pos){
 281 off_t newpos=0;
 282
 283 //  if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ) printf("seek_long to 0x%X\n",(unsigned int)pos);
 284
 285   s->buf_pos=s->buf_len=0;
 286
 287   if(s->mode == STREAM_WRITE) {
 288     if(!s->seek || !s->seek(s,pos))
 289       return 0;
 290     return 1;
 291   }
 292
 293   if(s->sector_size)
 294       newpos = (pos/s->sector_size)*s->sector_size;
 295   else
 296       newpos = pos&(~((off_t)STREAM_BUFFER_SIZE-1));
 297
 298 if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ){
 299   mp_msg(MSGT_STREAM,MSGL_DBG3, "s->pos=%"PRIX64"  newpos=%"PRIX64"  new_bufpos=%"PRIX64"  buflen=%X  \n",
 300     (int64_t)s->pos,(int64_t)newpos,(int64_t)pos,s->buf_len);
 301 }
 302   pos-=newpos;
 303
 304 if(newpos==0 || newpos!=s->pos){
 305   switch(s->type){
 306   case STREAMTYPE_STREAM:
 307     //s->pos=newpos; // real seek
 308     // Some streaming protocol allow to seek backward and forward
 309     // A function call that return -1 can tell that the protocol
 310     // doesn't support seeking.
 311 #ifdef CONFIG_NETWORK
 312     if(s->seek) { // new stream seek is much cleaner than streaming_ctrl one
 313       if(!s->seek(s,newpos)) {
 314         mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
 315         return 0;
 316       }
 317       break;
 318     }
 319
 320     if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_seek ) {
 321       if( s->streaming_ctrl->streaming_seek( s->fd, pos, s->streaming_ctrl )<0 ) {
 322         mp_msg(MSGT_STREAM,MSGL_INFO,"Stream not seekable!\n");
 323         return 1;
 324       }
 325     }
 326 #else
 327     if(newpos<s->pos){
 328       mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek backward in linear streams!\n");
 329       return 1;
 330     }
 331     while(s->pos<newpos){
 332       if(stream_fill_buffer(s)<=0) break; // EOF
 333     }
 334 #endif
 335     break;
 336   default:
 337     // This should at the beginning as soon as all streams are converted
 338     if(!s->seek)
 339       return 0;
 340     // Now seek
 341     if(!s->seek(s,newpos)) {
 342       mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
 343       return 0;
 344     }
 345   }
 346 //   putchar('.');fflush(stdout);
 347 //} else {
 348 //   putchar('%');fflush(stdout);
 349 }
 350
 351 while(stream_fill_buffer(s) > 0 && pos >= 0) {
 352   if(pos<=s->buf_len){
 353     s->buf_pos=pos; // byte position in sector
 354     return 1;
 355   }
 356   pos -= s->buf_len;
 357 }
 358
 359 //  if(pos==s->buf_len) printf("XXX Seek to last byte of file -> EOF\n");
 360
 361   mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%"PRIX64" !\n",(int64_t)(pos+newpos));
 362   return 0;
 363 }
 364
 365
 366 void stream_reset(stream_t *s){
 367   if(s->eof){
 368     s->pos=0; //ftell(f);
 369 //    s->buf_pos=s->buf_len=0;
 370     s->eof=0;
 371   }
 372   if(s->control) s->control(s,STREAM_CTRL_RESET,NULL);
 373   //stream_seek(s,0);
 374 }
 375
 376 int stream_control(stream_t *s, int cmd, void *arg){
 377   if(!s->control) return STREAM_UNSUPPORTED;
 378 #ifdef CONFIG_STREAM_CACHE
 379   if (s->cache_pid)
 380     return cache_do_control(s, cmd, arg);
 381 #endif
 382   return s->control(s, cmd, arg);
 383 }
 384
 385 stream_t* new_memory_stream(unsigned char* data,int len){
 386   stream_t *s;
 387
 388   if(len < 0)
 389     return NULL;
 390   s=malloc(sizeof(stream_t)+len);
 391   memset(s,0,sizeof(stream_t));
 392   s->fd=-1;
 393   s->type=STREAMTYPE_MEMORY;
 394   s->buf_pos=0; s->buf_len=len;
 395   s->start_pos=0; s->end_pos=len;
 396   stream_reset(s);
 397   s->pos=len;
 398   memcpy(s->buffer,data,len);
 399   return s;
 400 }
 401
 402 stream_t* new_stream(int fd,int type){
 403   stream_t *s=malloc(sizeof(stream_t));
 404   if(s==NULL) return NULL;
 405   memset(s,0,sizeof(stream_t));
 406
 407 #if HAVE_WINSOCK2_H
 408   {
 409     WSADATA wsdata;
 410     int temp = WSAStartup(0x0202, &wsdata); // there might be a better place for this (-> later)
 411     mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 init: %i\n", temp);
 412   }
 413 #endif
 414
 415   s->fd=fd;
 416   s->type=type;
 417   s->buf_pos=s->buf_len=0;
 418   s->start_pos=s->end_pos=0;
 419   s->priv=NULL;
 420   s->url=NULL;
 421   s->cache_pid=0;
 422   stream_reset(s);
 423   return s;
 424 }
 425
 426 void free_stream(stream_t *s){
 427 //  printf("\n*** free_stream() called ***\n");
 428 #ifdef CONFIG_STREAM_CACHE
 429   if(s->cache_pid) {
 430     cache_uninit(s);
 431   }
 432 #endif
 433   if(s->close) s->close(s);
 434   if(s->fd>0){
 435     /* on unix we define closesocket to close
 436        on windows however we have to distinguish between
 437        network socket and file */
 438     if(s->url && strstr(s->url,"://"))
 439       closesocket(s->fd);
 440     else close(s->fd);
 441   }
 442 #if HAVE_WINSOCK2_H
 443   mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 uninit\n");
 444   WSACleanup(); // there might be a better place for this (-> later)
 445 #endif
 446   // Disabled atm, i don't like that. s->priv can be anything after all
 447   // streams should destroy their priv on close
 448   //if(s->priv) free(s->priv);
 449   if(s->url) free(s->url);
 450   free(s);
 451 }
 452
 453 stream_t* new_ds_stream(demux_stream_t *ds) {
 454   stream_t* s = new_stream(-1,STREAMTYPE_DS);
 455   s->priv = ds;
 456   return s;
 457 }
 458
 459 void stream_set_interrupt_callback(int (*cb)(struct input_ctx *, int),
 460                                    struct input_ctx *ctx)
 461 {
 462     stream_check_interrupt_cb = cb;
 463     stream_check_interrupt_ctx = ctx;
 464 }
 465
 466 int stream_check_interrupt(int time) {
 467     if(!stream_check_interrupt_cb) return 0;
 468     return stream_check_interrupt_cb(stream_check_interrupt_ctx, time);
 469 }