git.sesse.net Git - vlc/blob - modules/codec/realvideo.c

   1 /*****************************************************************************
   2  * realvideo.c: a realvideo decoder that uses the real's dll
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * Copyright (C) 2008 Wang Bo
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  20  *****************************************************************************/
  21
  22 /*****************************************************************************
  23  * Preamble
  24  *****************************************************************************/
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <vlc_common.h>
  30 #include <vlc_plugin.h>
  31 #include <vlc_codec.h>
  32
  33 #ifdef LOADER
  34 /* Need the w32dll loader from mplayer */
  35 #   include <wine/winerror.h>
  36 #   include <ldt_keeper.h>
  37 #   include <wine/windef.h>
  38
  39 void *WINAPI LoadLibraryA( char *name );
  40 void *WINAPI GetProcAddress( void *handle, char *func );
  41 int WINAPI FreeLibrary( void *handle );
  42 #endif
  43
  44 #ifndef WINAPI
  45 #   define WINAPI
  46 #endif
  47
  48 #if defined(HAVE_DL_DLOPEN)
  49 #   if defined(HAVE_DLFCN_H) /* Linux, BSD, Hurd */
  50 #       include <dlfcn.h>
  51 #   endif
  52 #   if defined(HAVE_SYS_DL_H)
  53 #       include <sys/dl.h>
  54 #   endif
  55 #endif
  56
  57 typedef struct cmsg_data_s
  58 {
  59     uint32_t data1;
  60     uint32_t data2;
  61     uint32_t* dimensions;
  62 } cmsg_data_t;
  63
  64 typedef struct transform_in_s
  65 {
  66     uint32_t len;
  67     uint32_t unknown1;
  68     uint32_t chunks;
  69     uint32_t* extra;
  70     uint32_t unknown2;
  71     uint32_t timestamp;
  72 } transform_in_t;
  73
  74 // copypaste from demux_real.c - it should match to get it working!
  75 typedef struct dp_hdr_s
  76 {
  77     uint32_t chunks;    // number of chunks
  78     uint32_t timestamp;    // timestamp from packet header
  79     uint32_t len;    // length of actual data
  80     uint32_t chunktab;    // offset to chunk offset array
  81 } dp_hdr_t;
  82
  83 /* we need exact positions */
  84 struct rv_init_t
  85 {
  86     short unk1;
  87     short w;
  88     short h;
  89     short unk3;
  90     int unk2;
  91     unsigned int * subformat;
  92     int unk5;
  93     unsigned int * format;
  94 } rv_init_t;
  95
  96 struct decoder_sys_t
  97 {
  98     /* library */
  99 #ifdef LOADER
 100     ldt_fs_t    *ldt_fs;
 101 #endif
 102     void        *handle;
 103     void         *rv_handle;
 104     int          inited;
 105     char         *plane;
 106 };
 107
 108 int dll_type = 1;
 109
 110 static unsigned long (*rvyuv_custom_message)(cmsg_data_t* ,void*);
 111 static unsigned long (*rvyuv_free)(void*);
 112 static unsigned long (*rvyuv_init)(void*, void*); // initdata,context
 113 static unsigned long (*rvyuv_transform)(char*, char*,transform_in_t*,unsigned int*,void*);
 114 #ifdef WIN32
 115 static unsigned long WINAPI (*wrvyuv_custom_message)(cmsg_data_t* ,void*);
 116 static unsigned long WINAPI (*wrvyuv_free)(void*);
 117 static unsigned long WINAPI (*wrvyuv_init)(void*, void*); // initdata,context
 118 static unsigned long WINAPI (*wrvyuv_transform)(char*, char*,transform_in_t*,unsigned int*,void*);
 119 #endif
 120
 121 /*****************************************************************************
 122  * Module descriptor
 123  *****************************************************************************/
 124 static int  Open ( vlc_object_t * );
 125 static void Close( vlc_object_t * );
 126
 127 //static int  OpenPacketizer( vlc_object_t * );
 128 static picture_t *DecodeVideo( decoder_t *, block_t ** );
 129
 130 vlc_module_begin ()
 131     set_description( N_("RealVideo library decoder") )
 132     set_capability( "decoder", 10 )
 133     set_category( CAT_INPUT )
 134     set_subcategory( SUBCAT_INPUT_VCODEC )
 135     set_callbacks( Open, Close )
 136 vlc_module_end ()
 137
 138
 139 /*****************************************************************************
 140  * Local prototypes
 141  *****************************************************************************/
 142
 143 #ifdef WIN32
 144 static void * load_syms(decoder_t *p_dec, const char *path)
 145 {
 146     void *handle;
 147
 148     msg_Dbg( p_dec, "opening win32 dll '%s'", path);
 149 #ifdef LOADER
 150     Setup_LDT_Keeper();
 151 #endif
 152     handle = LoadLibraryA(path);
 153     msg_Dbg( p_dec, "win32 real codec handle=%p",handle);
 154     if (!handle)
 155     {
 156         msg_Err( p_dec, "Error loading dll");
 157         return NULL;
 158     }
 159
 160     wrvyuv_custom_message = GetProcAddress(handle, "RV20toYUV420CustomMessage");
 161     wrvyuv_free = GetProcAddress(handle, "RV20toYUV420Free");
 162     wrvyuv_init = GetProcAddress(handle, "RV20toYUV420Init");
 163     wrvyuv_transform = GetProcAddress(handle, "RV20toYUV420Transform");
 164
 165     if (wrvyuv_custom_message && wrvyuv_free && wrvyuv_init && wrvyuv_transform)
 166     {
 167         dll_type = 1;
 168         return handle;
 169     }
 170     msg_Err( p_dec, "Error resolving symbols! (version incompatibility?)");
 171     FreeLibrary(handle);
 172     return NULL; // error
 173 }
 174 #else
 175 static void * load_syms_linux(decoder_t *p_dec, const char *path)
 176 {
 177     void *handle;
 178
 179     msg_Dbg( p_dec, "opening shared obj '%s'", path);
 180
 181     handle = dlopen (path, RTLD_LAZY);
 182     if (!handle)
 183     {
 184         msg_Err( p_dec,"Error: %s",dlerror());
 185         return NULL;
 186     }
 187
 188     rvyuv_custom_message = dlsym(handle, "RV20toYUV420CustomMessage");
 189     rvyuv_free = dlsym(handle, "RV20toYUV420Free");
 190     rvyuv_init = dlsym(handle, "RV20toYUV420Init");
 191     rvyuv_transform = dlsym(handle, "RV20toYUV420Transform");
 192
 193     if(rvyuv_custom_message && rvyuv_free && rvyuv_init && rvyuv_transform)
 194     {
 195         dll_type = 0;
 196         return handle;
 197     }
 198
 199     msg_Err( p_dec,"Error resolving symbols! (version incompatibility?)");
 200     dlclose(handle);
 201     return 0;
 202 }
 203 #endif
 204
 205 static vlc_mutex_t rm_mutex = VLC_STATIC_MUTEX;
 206
 207 static int InitVideo(decoder_t *p_dec)
 208 {
 209     int result;
 210     struct rv_init_t init_data;
 211     char fcc[4];
 212     char *g_decode_path;
 213
 214     int  i_vide = p_dec->fmt_in.i_extra;
 215     unsigned int *p_vide = p_dec->fmt_in.p_extra;
 216     decoder_sys_t *p_sys = malloc( sizeof( decoder_sys_t ) );
 217     memset(p_sys,0,sizeof( decoder_sys_t ) );
 218
 219     if( i_vide < 8 )
 220     {
 221             msg_Err( p_dec, "missing extra info" );
 222             free( p_sys );
 223             return VLC_EGENERIC;
 224     }
 225     if (p_sys->plane) free(p_sys->plane);
 226     p_sys->plane = malloc (p_dec->fmt_in.video.i_width*p_dec->fmt_in.video.i_height*3/2 + 1024 );
 227     if (NULL == p_sys->plane)
 228     {
 229         msg_Err( p_dec, "cannot alloc plane buffer" );
 230         free( p_sys );
 231         return VLC_EGENERIC;
 232     }
 233
 234     p_dec->p_sys = p_sys;
 235     p_dec->pf_decode_video = DecodeVideo;
 236
 237     memcpy( fcc, &p_dec->fmt_in.i_codec, 4 );
 238     init_data.unk1 = 11;
 239     init_data.w = p_dec->fmt_in.video.i_width ;
 240     init_data.h = p_dec->fmt_in.video.i_height ;
 241     init_data.unk3 = 0;
 242     init_data.unk2 = 0;
 243     init_data.subformat = (unsigned int*)p_vide[0];
 244     init_data.unk5 = 1;
 245     init_data.format = (unsigned int*)p_vide[1];
 246
 247     /* first try to load linux dlls, if failed and we're supporting win32 dlls,
 248        then try to load the windows ones */
 249     bool b_so_opened = false;
 250
 251 #ifdef WIN32
 252     g_decode_path="plugins\\drv43260.dll";
 253
 254     if( (p_sys->rv_handle = load_syms(p_dec, g_decode_path)) )
 255         b_so_opened = true;
 256 #else
 257     static const char psz_paths[] =
 258     {
 259         "/usr/lib/win32\0"
 260         "/usr/lib/codecs\0"
 261         "/usr/local/RealPlayer8/Codecs\0"
 262         "/usr/RealPlayer8/Codecs\0"
 263         "/usr/lib/RealPlayer8/Codecs\0"
 264         "/opt/RealPlayer8/Codecs\0"
 265         "/usr/lib/RealPlayer9/users/Real/Codecs\0"
 266         "/usr/lib/RealPlayer10/codecs\0"
 267         "/usr/lib/RealPlayer10GOLD/codecs\0"
 268         "/usr/lib/helix/player/codecs\0"
 269         "/usr/lib64/RealPlayer8/Codecs\0"
 270         "/usr/lib64/RealPlayer9/users/Real/Codecs\0"
 271         "/usr/lib64/RealPlayer10/codecs\0"
 272         "/usr/lib64/RealPlayer10GOLD/codecs\0"
 273         "/usr/local/lib/codecs\0"
 274         "\0"
 275     };
 276
 277     for( size_t i = 0; psz_paths[i]; i += strlen( psz_paths + i ) + 1 )
 278     {
 279         if( asprintf( &g_decode_path, "%s/drv4.so.6.0", psz_paths + i ) != -1 )
 280         {
 281             p_sys->rv_handle = load_syms_linux(p_dec, g_decode_path);
 282             free( g_decode_path );
 283         }
 284         if( p_sys->rv_handle )
 285         {
 286             b_so_opened = true;
 287             break;
 288         }
 289
 290         if( asprintf( &g_decode_path, "%s/drv3.so.6.0", psz_paths + i ) != -1 )
 291         {
 292             p_sys->rv_handle = load_syms_linux(p_dec, g_decode_path);
 293             free( g_decode_path );
 294         }
 295         if( p_sys->rv_handle )
 296         {
 297             b_so_opened = true;
 298             break;
 299         }
 300
 301         msg_Dbg( p_dec, "Cannot load real decoder library: %s", g_decode_path);
 302     }
 303 #endif
 304
 305     if(!b_so_opened )
 306     {
 307         msg_Err( p_dec, "Cannot any real decoder library" );
 308         free( p_sys );
 309         return VLC_EGENERIC;
 310     }
 311
 312     vlc_mutex_lock( &rm_mutex );
 313
 314     p_sys->handle=NULL;
 315     #ifdef WIN32
 316     if (dll_type == 1)
 317         result=(*wrvyuv_init)(&init_data, &p_sys->handle);
 318     else
 319     #endif
 320         result=(*rvyuv_init)(&init_data, &p_sys->handle);
 321     if (result)
 322     {
 323         msg_Err( p_dec, "Cannot Init real decoder library: %s",  g_decode_path);
 324         free( p_sys );
 325         return VLC_EGENERIC;
 326     }
 327
 328     /* setup rv30 codec (codec sub-type and image dimensions): */
 329     /*if ( p_dec->fmt_in.i_codec == VLC_CODEC_RV30 )*/
 330     if (p_vide[1]>=0x20200002)
 331     {
 332         int i, cmsg_cnt;
 333         uint32_t cmsg24[16]={p_dec->fmt_in.video.i_width,p_dec->fmt_in.video.i_height};
 334         cmsg_data_t cmsg_data={0x24,1+(p_vide[1]&7), &cmsg24[0]};
 335         cmsg_cnt = (p_vide[1]&7)*2;
 336         if (i_vide - 8 < cmsg_cnt) {
 337                     cmsg_cnt = i_vide - 8;
 338         }
 339         for (i = 0; i < cmsg_cnt; i++)
 340             cmsg24[2+i] = p_vide[8+i]*4;
 341         #ifdef WIN32
 342         if (dll_type == 1)
 343             (*wrvyuv_custom_message)(&cmsg_data,p_sys->handle);
 344         else
 345         #endif
 346             (*rvyuv_custom_message)(&cmsg_data,p_sys->handle);
 347     }
 348     /*
 349     es_format_Init( &p_dec->fmt_out, VIDEO_ES, VLC_CODEC_YV12);
 350     es_format_Init( &p_dec->fmt_out, VIDEO_ES, VLC_CODEC_YUYV);
 351      */
 352     es_format_Init( &p_dec->fmt_out, VIDEO_ES, VLC_CODEC_I420);
 353
 354     p_dec->fmt_out.video.i_width = p_dec->fmt_in.video.i_width;
 355     p_dec->fmt_out.video.i_height= p_dec->fmt_in.video.i_height;
 356     p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR * p_dec->fmt_in.video.i_width / p_dec->fmt_in.video.i_height;
 357     p_sys->inited = 0;
 358
 359     vlc_mutex_unlock( &rm_mutex );
 360     return VLC_SUCCESS;
 361 }
 362
 363 /*****************************************************************************
 364  * Open: probe the decoder and return score
 365  *****************************************************************************
 366  * Tries to launch a decoder and return score so that the interface is able
 367  * to choose.
 368  *****************************************************************************/
 369 static int Open( vlc_object_t *p_this )
 370 {
 371     decoder_t *p_dec = (decoder_t*)p_this;
 372
 373     /* create a mutex */
 374     var_Create( p_this->p_libvlc, "rm_mutex", VLC_VAR_MUTEX );
 375
 376     switch ( p_dec->fmt_in.i_codec )
 377     {
 378     case VLC_CODEC_RV10:
 379     case VLC_CODEC_RV20:
 380     case VLC_CODEC_RV30:
 381     case VLC_CODEC_RV40:
 382         p_dec->p_sys = NULL;
 383         p_dec->pf_decode_video = DecodeVideo;
 384         return InitVideo(p_dec);
 385
 386     default:
 387         return VLC_EGENERIC;
 388     }
 389 }
 390
 391 /*****************************************************************************
 392  * Close:
 393  *****************************************************************************/
 394 static void Close( vlc_object_t *p_this )
 395 {
 396     decoder_t     *p_dec = (decoder_t*)p_this;
 397     decoder_sys_t *p_sys = p_dec->p_sys;
 398
 399     /* get lock, avoid segfault */
 400     vlc_mutex_lock( &rm_mutex );
 401
 402     #ifdef WIN32
 403     if (dll_type == 1)
 404     {
 405         if (wrvyuv_free)
 406             wrvyuv_free(p_sys->handle);
 407     }
 408     else
 409     #endif
 410         if (rvyuv_free)
 411             rvyuv_free(p_sys->handle);
 412 #ifdef WIN32
 413     if (dll_type == 1)
 414     {
 415         if (p_sys->rv_handle)
 416             FreeLibrary(p_sys->rv_handle);
 417     }
 418     else
 419 #endif
 420         p_sys->rv_handle=NULL;
 421
 422     if (p_sys->plane)
 423     {
 424         free(p_sys->plane);
 425         p_sys->plane = NULL;
 426     }
 427
 428     msg_Dbg( p_dec, "FreeLibrary ok." );
 429 #ifdef LOADER
 430     Restore_LDT_Keeper( p_sys->ldt_fs );
 431     msg_Dbg( p_dec, "Restore_LDT_Keeper" );
 432 #endif
 433     p_sys->inited = 0;
 434
 435     vlc_mutex_unlock( &rm_mutex );
 436
 437     free( p_sys );
 438 }
 439
 440 /*****************************************************************************
 441  * DecodeVideo:
 442  *****************************************************************************/
 443 static picture_t *DecodeVideo( decoder_t *p_dec, block_t **pp_block )
 444 {
 445     decoder_sys_t *p_sys = p_dec->p_sys;
 446     block_t       *p_block;
 447     picture_t     *p_pic;
 448     mtime_t       i_pts;
 449     int           result;
 450
 451     /* We must do open and close in the same thread (unless we do
 452      * Setup_LDT_Keeper in the main thread before all others */
 453     if ( pp_block == NULL || *pp_block == NULL )
 454     {
 455         return NULL;
 456     }
 457     p_block = *pp_block;
 458     *pp_block = NULL;
 459
 460     i_pts = p_block->i_pts ? p_block->i_pts : p_block->i_dts;
 461
 462     vlc_mutex_lock( &rm_mutex );
 463
 464     p_pic = decoder_NewPicture( p_dec );
 465
 466     if ( p_pic )
 467     {
 468         unsigned int transform_out[5];
 469         dp_hdr_t dp_hdr;
 470         transform_in_t transform_in;
 471         uint32_t pkg_len = ((uint32_t*)p_block->p_buffer)[0];
 472         unsigned char* dp_data=((unsigned char*)p_block->p_buffer)+8;
 473         uint32_t* extra=(uint32_t*)(((char*)p_block->p_buffer)+8+pkg_len);
 474         uint32_t img_size;
 475
 476
 477         dp_hdr.len = pkg_len;
 478         dp_hdr.chunktab = 8 + pkg_len;
 479         dp_hdr.chunks = ((uint32_t*)p_block->p_buffer)[1]-1;
 480         dp_hdr.timestamp = i_pts;
 481
 482         memset(&transform_in, 0, sizeof(transform_in_t));
 483
 484         transform_in.len = dp_hdr.len;
 485         transform_in.extra = extra;
 486         transform_in.chunks = dp_hdr.chunks;
 487         transform_in.timestamp = dp_hdr.timestamp;
 488
 489         memset (p_sys->plane, 0, p_dec->fmt_in.video.i_width * p_dec->fmt_in.video.i_height *3/2 );
 490
 491         #ifdef WIN32
 492         if (dll_type == 1)
 493             result=(*wrvyuv_transform)(dp_data, p_sys->plane, &transform_in, transform_out, p_sys->handle);
 494         else
 495         #endif
 496             result=(*rvyuv_transform)(dp_data, p_sys->plane, &transform_in, transform_out, p_sys->handle);
 497
 498         /* msg_Warn(p_dec, "Real Size %d X %d", transform_out[3],
 499                  transform_out[4]); */
 500         /* some bug rm file will print the messages :
 501                 [00000551] realvideo decoder warning: Real Size 320 X 240
 502                 [00000551] realvideo decoder warning: Real Size 480 X 272
 503                 [00000551] realvideo decoder warning: Real Size 320 X 240
 504                 [00000551] realvideo decoder warning: Real Size 320 X 240
 505                 ...
 506             so it needs fixing!
 507         */
 508         if ( p_sys->inited == 0 )
 509         {
 510             /* fix and get the correct image size! */
 511             if ( p_dec->fmt_in.video.i_width != transform_out[3]
 512              || p_dec->fmt_in.video.i_height  != transform_out[4] )
 513             {
 514                 msg_Warn(p_dec, "Warning, Real's Header give a wrong "
 515                          "information about media's width and height!"
 516                          "\tRealHeader: \t %d X %d  \t %d X %d",
 517                          p_dec->fmt_in.video.i_width,
 518                          p_dec->fmt_in.video.i_height,
 519                          transform_out[3],transform_out[4]);
 520
 521                 if ( p_dec->fmt_in.video.i_width * p_dec->fmt_in.video.i_height >= transform_out[3] * transform_out[4] )
 522                 {
 523                     p_dec->fmt_out.video.i_width =
 524                     p_dec->fmt_out.video.i_visible_width =
 525                     p_dec->fmt_in.video.i_width = transform_out[3] ;
 526
 527                     p_dec->fmt_out.video.i_height=
 528                     p_dec->fmt_out.video.i_visible_height =
 529                     p_dec->fmt_in.video.i_height= transform_out[4];
 530
 531                     p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR * p_dec->fmt_in.video.i_width / p_dec->fmt_in.video.i_height;
 532                 }
 533                 else
 534                 {
 535                     // TODO: realloc plane's size! but [in fact] it maybe not happen!
 536                     msg_Err(p_dec,"plane space not enough ,skip");
 537                 }
 538             }
 539             p_sys->inited = 1;
 540         }
 541
 542         img_size = p_dec->fmt_in.video.i_width * p_dec->fmt_in.video.i_height;
 543         memcpy( p_pic->p[0].p_pixels, p_sys->plane,  img_size);
 544         memcpy( p_pic->p[1].p_pixels, p_sys->plane + img_size, img_size/4);
 545         memcpy( p_pic->p[2].p_pixels, p_sys->plane + img_size * 5/4, img_size/4);
 546         p_pic->date = i_pts ;
 547
 548         /*  real video frame is small( frame and frame's time-shift is short),
 549             so it will become late picture easier (when render-time changed)and
 550             droped by video-output.*/
 551         p_pic->b_force = 1;
 552     }
 553
 554     vlc_mutex_unlock( &rm_mutex );
 555
 556     block_Release( p_block );
 557     return p_pic;
 558 }
 559