libmpcodecs/vd_realvid.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 #include "config.h"
  23
  24 #ifdef HAVE_LIBDL
  25 #include <dlfcn.h>
  26 #endif
  27
  28 #include "mp_msg.h"
  29 #include "help_mp.h"
  30 #include "mpbswap.h"
  31 #include "path.h"
  32
  33 #include "vd_internal.h"
  34 #include "loader/wine/windef.h"
  35
  36 static const vd_info_t info = {
  37         "RealVideo decoder",
  38         "realvid",
  39         "Alex Beregszaszi",
  40         "Florian Schneider, Arpad Gereoffy, Alex Beregszaszi, Donnie Smith",
  41         "binary real video codecs"
  42 };
  43
  44 LIBVD_EXTERN(realvid)
  45
  46
  47 /*
  48  * Structures for data packets.  These used to be tables of unsigned ints, but
  49  * that does not work on 64 bit platforms (e.g. Alpha).  The entries that are
  50  * pointers get truncated.  Pointers on 64 bit platforms are 8 byte longs.
  51  * So we have to use structures so the compiler will assign the proper space
  52  * for the pointer.
  53  */
  54 typedef struct cmsg_data_s {
  55         uint32_t data1;
  56         uint32_t data2;
  57         uint32_t* dimensions;
  58 } cmsg_data_t;
  59
  60 typedef struct transform_in_s {
  61         uint32_t len;
  62         uint32_t unknown1;
  63         uint32_t chunks;
  64         uint32_t* extra;
  65         uint32_t unknown2;
  66         uint32_t timestamp;
  67 } transform_in_t;
  68
  69 static unsigned long (*rvyuv_custom_message)(cmsg_data_t* ,void*);
  70 static unsigned long (*rvyuv_free)(void*);
  71 static unsigned long (*rvyuv_init)(void*, void*); // initdata,context
  72 static unsigned long (*rvyuv_transform)(char*, char*,transform_in_t*,unsigned int*,void*);
  73 #ifdef CONFIG_WIN32DLL
  74 static unsigned long WINAPI (*wrvyuv_custom_message)(cmsg_data_t* ,void*);
  75 static unsigned long WINAPI (*wrvyuv_free)(void*);
  76 static unsigned long WINAPI (*wrvyuv_init)(void*, void*); // initdata,context
  77 static unsigned long WINAPI (*wrvyuv_transform)(char*, char*,transform_in_t*,unsigned int*,void*);
  78 #endif
  79
  80 static void *rv_handle=NULL;
  81 static int initialized=0;
  82 static uint8_t *buffer = NULL;
  83 static int bufsz = 0;
  84 #ifdef CONFIG_WIN32DLL
  85 static int dll_type = 0; /* 0 = unix dlopen, 1 = win32 dll */
  86 #endif
  87
  88 // to set/get/query special features/parameters
  89 static int control(sh_video_t *sh,int cmd,void* arg,...){
  90 //    switch(cmd){
  91 //    case VDCTRL_QUERY_MAX_PP_LEVEL:
  92 //      return 9;
  93 //    case VDCTRL_SET_PP_LEVEL:
  94 //      vfw_set_postproc(sh,10*(*((int*)arg)));
  95 //      return CONTROL_OK;
  96 //    }
  97     return CONTROL_UNKNOWN;
  98 }
  99
 100 /* exits program when failure */
 101 #ifdef HAVE_LIBDL
 102 static int load_syms_linux(char *path) {
 103                 void *handle;
 104
 105                 mp_msg(MSGT_DECVIDEO,MSGL_V, "opening shared obj '%s'\n", path);
 106                 handle = dlopen (path, RTLD_LAZY);
 107                 if (!handle) {
 108                         mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error: %s\n",dlerror());
 109                         return 0;
 110                 }
 111
 112                 rvyuv_custom_message = dlsym(handle, "RV20toYUV420CustomMessage");
 113                 rvyuv_free = dlsym(handle, "RV20toYUV420Free");
 114                 rvyuv_init = dlsym(handle, "RV20toYUV420Init");
 115                 rvyuv_transform = dlsym(handle, "RV20toYUV420Transform");
 116
 117     if(rvyuv_custom_message &&
 118        rvyuv_free &&
 119        rvyuv_init &&
 120        rvyuv_transform)
 121     {
 122         rv_handle = handle;
 123         return 1;
 124     }
 125
 126                 rvyuv_custom_message = dlsym(handle, "RV40toYUV420CustomMessage");
 127                 rvyuv_free = dlsym(handle, "RV40toYUV420Free");
 128                 rvyuv_init = dlsym(handle, "RV40toYUV420Init");
 129                 rvyuv_transform = dlsym(handle, "RV40toYUV420Transform");
 130
 131     if(rvyuv_custom_message &&
 132        rvyuv_free &&
 133        rvyuv_init &&
 134        rvyuv_transform)
 135     {
 136         rv_handle = handle;
 137         return 1;
 138     }
 139
 140     mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error resolving symbols! (version incompatibility?)\n");
 141     dlclose(handle);
 142     return 0;
 143 }
 144 #endif
 145
 146 #ifdef CONFIG_WIN32DLL
 147
 148 #ifdef WIN32_LOADER
 149 #include "loader/ldt_keeper.h"
 150 #endif
 151 void* WINAPI LoadLibraryA(char* name);
 152 void* WINAPI GetProcAddress(void* handle,char* func);
 153 int WINAPI FreeLibrary(void *handle);
 154
 155 #ifndef WIN32_LOADER
 156 void * WINAPI GetModuleHandleA(char *);
 157 static int patch_dll(uint8_t *patchpos, const uint8_t *oldcode,
 158                      const uint8_t *newcode, int codesize) {
 159   void *handle = GetModuleHandleA("kernel32");
 160   int WINAPI (*VirtProt)(void *, unsigned, int, int *);
 161   int res = 0;
 162   int prot, tmp;
 163   VirtProt = GetProcAddress(handle, "VirtualProtect");
 164   // change permissions to PAGE_WRITECOPY
 165   if (!VirtProt ||
 166       !VirtProt(patchpos, codesize, 0x08, &prot)) {
 167     mp_msg(MSGT_DECVIDEO, MSGL_WARN, "VirtualProtect failed at %p\n", patchpos);
 168     return 0;
 169   }
 170   if (memcmp(patchpos, oldcode, codesize) == 0) {
 171     memcpy(patchpos, newcode, codesize);
 172     res = 1;
 173   }
 174   VirtProt(patchpos, codesize, prot, &tmp);
 175   return res;
 176 }
 177 #endif
 178
 179 static int load_syms_windows(char *path) {
 180     void *handle;
 181
 182     mp_msg(MSGT_DECVIDEO,MSGL_V, "opening win32 dll '%s'\n", path);
 183 #ifdef WIN32_LOADER
 184     Setup_LDT_Keeper();
 185 #endif
 186     handle = LoadLibraryA(path);
 187     mp_msg(MSGT_DECVIDEO,MSGL_V,"win32 real codec handle=%p  \n",handle);
 188     if (!handle) {
 189         mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error loading dll\n");
 190         return 0;
 191     }
 192
 193     wrvyuv_custom_message = GetProcAddress(handle, "RV20toYUV420CustomMessage");
 194     wrvyuv_free = GetProcAddress(handle, "RV20toYUV420Free");
 195     wrvyuv_init = GetProcAddress(handle, "RV20toYUV420Init");
 196     wrvyuv_transform = GetProcAddress(handle, "RV20toYUV420Transform");
 197
 198     if(wrvyuv_custom_message &&
 199        wrvyuv_free &&
 200        wrvyuv_init &&
 201        wrvyuv_transform)
 202     {
 203         dll_type = 1;
 204         rv_handle = handle;
 205 #ifndef WIN32_LOADER
 206         {
 207             if (strstr(path, "drv43260.dll")) {
 208                 int patched;
 209                 // patch away multithreaded decoding, it causes crashes
 210                 static const uint8_t oldcode[13] = {
 211                     0x83, 0xbb, 0xf8, 0x05, 0x00, 0x00, 0x01,
 212                     0x0f, 0x86, 0xd0, 0x00, 0x00, 0x00 };
 213                 static const uint8_t newcode[13] = {
 214                     0x31, 0xc0,
 215                     0x89, 0x83, 0xf8, 0x05, 0x00, 0x00,
 216                     0xe9, 0xd0, 0x00, 0x00, 0x00 };
 217                 patched = patch_dll(
 218                         (char*)wrvyuv_transform + 0x634132fa - 0x634114d0,
 219                         oldcode, newcode, sizeof(oldcode));
 220                 if (!patched)
 221                     mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Could not patch Real codec, this might crash on multi-CPU systems\n");
 222             }
 223         }
 224 #endif
 225         return 1;
 226     }
 227
 228     wrvyuv_custom_message = GetProcAddress(handle, "RV40toYUV420CustomMessage");
 229     wrvyuv_free = GetProcAddress(handle, "RV40toYUV420Free");
 230     wrvyuv_init = GetProcAddress(handle, "RV40toYUV420Init");
 231     wrvyuv_transform = GetProcAddress(handle, "RV40toYUV420Transform");
 232     if(wrvyuv_custom_message &&
 233        wrvyuv_free &&
 234        wrvyuv_init &&
 235        wrvyuv_transform) {
 236         dll_type = 1;
 237         rv_handle = handle;
 238         return 1;
 239     }
 240
 241     mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error resolving symbols! (version incompatibility?)\n");
 242     FreeLibrary(handle);
 243     return 0; // error
 244 }
 245 #endif
 246
 247 /* we need exact positions */
 248 struct rv_init_t {
 249         short unk1;
 250         short w;
 251         short h;
 252         short unk3;
 253         int unk2;
 254         int subformat;
 255         int unk5;
 256         int format;
 257 } rv_init_t;
 258
 259 // init driver
 260 static int init(sh_video_t *sh){
 261         //unsigned int out_fmt;
 262         char *path;
 263         int result;
 264         // we export codec id and sub-id from demuxer in bitmapinfohdr:
 265         unsigned char* extrahdr=(unsigned char*)(sh->bih+1);
 266         unsigned int extrahdr_size = sh->bih->biSize - sizeof(BITMAPINFOHEADER);
 267         struct rv_init_t init_data;
 268
 269         if(extrahdr_size < 8) {
 270             mp_msg(MSGT_DECVIDEO,MSGL_ERR,"realvideo: extradata too small (%u)\n", sh->bih->biSize - sizeof(BITMAPINFOHEADER));
 271             return 0;
 272         }
 273         init_data = (struct rv_init_t){11, sh->disp_w, sh->disp_h, 0, 0, be2me_32(((unsigned int*)extrahdr)[0]), 1, be2me_32(((unsigned int*)extrahdr)[1])}; // rv30
 274
 275         mp_msg(MSGT_DECVIDEO,MSGL_V,"realvideo codec id: 0x%08X  sub-id: 0x%08X\n",be2me_32(((unsigned int*)extrahdr)[1]),be2me_32(((unsigned int*)extrahdr)[0]));
 276
 277         path = malloc(strlen(codec_path) + strlen(sh->codec->dll) + 2);
 278         if (!path) return 0;
 279         sprintf(path, "%s/%s", codec_path, sh->codec->dll);
 280
 281         /* first try to load linux dlls, if failed and we're supporting win32 dlls,
 282            then try to load the windows ones */
 283 #ifdef HAVE_LIBDL
 284         if(strstr(sh->codec->dll,".dll") || !load_syms_linux(path))
 285 #endif
 286 #ifdef CONFIG_WIN32DLL
 287             if (!load_syms_windows(sh->codec->dll))
 288 #endif
 289         {
 290                 mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingDLLcodec,sh->codec->dll);
 291                 mp_msg(MSGT_DECVIDEO,MSGL_HINT,"Read the RealVideo section of the DOCS!\n");
 292                 free(path);
 293                 return 0;
 294         }
 295         free(path);
 296         // only I420 supported
 297 //      if((sh->format!=0x30335652) && !mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_I420)) return 0;
 298         // init codec:
 299         sh->context=NULL;
 300 #ifdef CONFIG_WIN32DLL
 301         if (dll_type == 1)
 302             result=(*wrvyuv_init)(&init_data, &sh->context);
 303         else
 304 #endif
 305         result=(*rvyuv_init)(&init_data, &sh->context);
 306         if (result){
 307             mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Couldn't open RealVideo codec, error code: 0x%X  \n",result);
 308             return 0;
 309         }
 310         // setup rv30 codec (codec sub-type and image dimensions):
 311         if((sh->format<=0x30335652) && (be2me_32(((unsigned int*)extrahdr)[1])>=0x20200002)){
 312             int i, cmsg_cnt;
 313             uint32_t cmsg24[16]={sh->disp_w,sh->disp_h};
 314             cmsg_data_t cmsg_data={0x24,1+(extrahdr[1]&7), &cmsg24[0]};
 315
 316             mp_msg(MSGT_DECVIDEO,MSGL_V,"realvideo: using cmsg24 with %u elements.\n",extrahdr[1]&7);
 317             cmsg_cnt = (extrahdr[1]&7)*2;
 318             if (extrahdr_size-8 < cmsg_cnt) {
 319                 mp_msg(MSGT_DECVIDEO,MSGL_WARN,"realvideo: not enough extradata (%u) to make %u cmsg24 elements.\n",extrahdr_size-8,extrahdr[1]&7);
 320                 cmsg_cnt = extrahdr_size-8;
 321             }
 322             for (i = 0; i < cmsg_cnt; i++)
 323                 cmsg24[2+i] = extrahdr[8+i]*4;
 324             if (extrahdr_size-8 > cmsg_cnt)
 325                 mp_msg(MSGT_DECVIDEO,MSGL_WARN,"realvideo: %u bytes of unknown extradata remaining.\n",extrahdr_size-8-cmsg_cnt);
 326
 327 #ifdef CONFIG_WIN32DLL
 328             if (dll_type == 1)
 329                 (*wrvyuv_custom_message)(&cmsg_data,sh->context);
 330             else
 331 #endif
 332             (*rvyuv_custom_message)(&cmsg_data,sh->context);
 333         }
 334         mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: RealVideo codec init OK!\n");
 335         return 1;
 336 }
 337
 338 // uninit driver
 339 static void uninit(sh_video_t *sh){
 340 #ifdef CONFIG_WIN32DLL
 341         if (dll_type == 1)
 342         {
 343             if (wrvyuv_free) wrvyuv_free(sh->context);
 344         } else
 345 #endif
 346         if(rvyuv_free) rvyuv_free(sh->context);
 347
 348 #ifdef CONFIG_WIN32DLL
 349         if (dll_type == 1)
 350         {
 351             if (rv_handle) FreeLibrary(rv_handle);
 352         } else
 353 #endif
 354 #ifdef HAVE_LIBDL
 355         if(rv_handle) dlclose(rv_handle);
 356 #endif
 357         rv_handle=NULL;
 358         initialized = 0;
 359         if (buffer)
 360             free(buffer);
 361         buffer = NULL;
 362         bufsz = 0;
 363 }
 364
 365 // decode a frame
 366 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
 367         mp_image_t* mpi;
 368         unsigned long result;
 369         uint8_t *buf = data;
 370         int chunks = *buf++;
 371         int extra_size = 8*(chunks+1);
 372         uint32_t data_size = len-1-extra_size;
 373         unsigned char* dp_data=buf+extra_size;
 374         uint32_t* extra=(uint32_t*)buf;
 375         int i;
 376
 377         unsigned int transform_out[5];
 378         transform_in_t transform_in={
 379                 data_size,      // length of the packet (sub-packets appended)
 380                 0,              // unknown, seems to be unused
 381                 chunks, // number of sub-packets - 1
 382                 extra,          // table of sub-packet offsets
 383                 0,              // unknown, seems to be unused
 384                 0,              // timestamp (should be unneded)
 385         };
 386
 387         if(len<=0 || flags&2) return NULL; // skipped frame || hardframedrop
 388
 389         if (bufsz < sh->disp_w*sh->disp_h*3/2) {
 390             if (buffer) free(buffer);
 391             bufsz = sh->disp_w*sh->disp_h*3/2;
 392             buffer=malloc(bufsz);
 393             if (!buffer) return 0;
 394         }
 395
 396         for (i=0; i<2*(chunks+1); i++)
 397                 extra[i] = le2me_32(extra[i]);
 398
 399 #ifdef CONFIG_WIN32DLL
 400         if (dll_type == 1)
 401             result=(*wrvyuv_transform)(dp_data, buffer, &transform_in,
 402                 transform_out, sh->context);
 403         else
 404 #endif
 405         result=(*rvyuv_transform)(dp_data, buffer, &transform_in,
 406                 transform_out, sh->context);
 407
 408         if(!initialized){  // rv30 width/height now known
 409             sh->aspect=(float)sh->disp_w/(float)sh->disp_h;
 410             sh->disp_w=transform_out[3];
 411             sh->disp_h=transform_out[4];
 412             if (!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_I420)) return 0;
 413             initialized=1;
 414         }
 415             mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, 0 /*MP_IMGFLAG_ACCEPT_STRIDE*/,
 416                     sh->disp_w, sh->disp_h);
 417             if(!mpi) return NULL;
 418             mpi->planes[0] = buffer;
 419             mpi->stride[0] = sh->disp_w;
 420             mpi->planes[1] = buffer + sh->disp_w*sh->disp_h;
 421             mpi->stride[1] = sh->disp_w / 2;
 422             mpi->planes[2] = buffer + sh->disp_w*sh->disp_h*5/4;
 423             mpi->stride[2] = sh->disp_w / 2;
 424
 425         if(transform_out[0] &&
 426            (sh->disp_w != transform_out[3] || sh->disp_h != transform_out[4]))
 427             initialized = 0;
 428
 429         return result ? NULL : mpi;
 430 }