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   1 /*
   2  *      Copyright (C) 2005-2013 Team XBMC
   3  *      http://xbmc.org
   4  *
   5  *  This Program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2, or (at your option)
   8  *  any later version.
   9  *
  10  *  This Program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with XBMC; see the file COPYING.  If not, see
  17  *  <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 #include "threads/SystemClock.h"
  22 #include "DVDFileInfo.h"
  23 #include "FileItem.h"
  24 #include "settings/AdvancedSettings.h"
  25 #include "pictures/Picture.h"
  26 #include "video/VideoInfoTag.h"
  27 #include "filesystem/StackDirectory.h"
  28 #include "utils/log.h"
  29 #include "utils/TimeUtils.h"
  30 #include "utils/URIUtils.h"
  31
  32 #include "DVDClock.h"
  33 #include "DVDStreamInfo.h"
  34 #include "DVDInputStreams/DVDInputStream.h"
  35 #ifdef HAVE_LIBBLURAY
  36 #include "DVDInputStreams/DVDInputStreamBluray.h"
  37 #endif
  38 #include "DVDInputStreams/DVDFactoryInputStream.h"
  39 #include "DVDDemuxers/DVDDemux.h"
  40 #include "DVDDemuxers/DVDDemuxUtils.h"
  41 #include "DVDDemuxers/DVDFactoryDemuxer.h"
  42 #include "DVDDemuxers/DVDDemuxFFmpeg.h"
  43 #include "DVDCodecs/DVDCodecs.h"
  44 #include "DVDCodecs/DVDFactoryCodec.h"
  45 #include "DVDCodecs/Video/DVDVideoCodec.h"
  46 #include "DVDCodecs/Video/DVDVideoCodecFFmpeg.h"
  47 #include "DVDDemuxers/DVDDemuxVobsub.h"
  48
  49 #include "DllAvCodec.h"
  50 #include "DllSwScale.h"
  51 #include "filesystem/File.h"
  52 #include "TextureCache.h"
  53 #include "Util.h"
  54 #include "utils/LangCodeExpander.h"
  55
  56
  57 bool CDVDFileInfo::GetFileDuration(const CStdString &path, int& duration)
  58 {
  59   std::auto_ptr<CDVDInputStream> input;
  60   std::auto_ptr<CDVDDemux> demux;
  61
  62   input.reset(CDVDFactoryInputStream::CreateInputStream(NULL, path, ""));
  63   if (!input.get())
  64     return false;
  65
  66   if (!input->Open(path, ""))
  67     return false;
  68
  69   demux.reset(CDVDFactoryDemuxer::CreateDemuxer(input.get()));
  70   if (!demux.get())
  71     return false;
  72
  73   duration = demux->GetStreamLength();
  74   if (duration > 0)
  75     return true;
  76   else
  77     return false;
  78 }
  79
  80 int DegreeToOrientation(int degrees)
  81 {
  82   switch(degrees)
  83   {
  84     case 90:
  85       return 5;
  86     case 180:
  87       return 2;
  88     case 270:
  89       return 7;
  90     default:
  91       return 0;
  92   }
  93 }
  94
  95 bool CDVDFileInfo::ExtractThumb(const CStdString &strPath, CTextureDetails &details, CStreamDetails *pStreamDetails)
  96 {
  97   std::string redactPath = CURL::GetRedacted(strPath);
  98   unsigned int nTime = XbmcThreads::SystemClockMillis();
  99   CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, strPath, "");
 100   if (!pInputStream)
 101   {
 102     CLog::Log(LOGERROR, "InputStream: Error creating stream for %s", redactPath.c_str());
 103     return false;
 104   }
 105
 106   if (pInputStream->IsStreamType(DVDSTREAM_TYPE_DVD))
 107   {
 108     CLog::Log(LOGERROR, "InputStream: dvd streams not supported for thumb extraction, file: %s", redactPath.c_str());
 109     delete pInputStream;
 110     return false;
 111   }
 112
 113   if (!pInputStream->Open(strPath.c_str(), ""))
 114   {
 115     CLog::Log(LOGERROR, "InputStream: Error opening, %s", redactPath.c_str());
 116     if (pInputStream)
 117       delete pInputStream;
 118     return false;
 119   }
 120
 121   CDVDDemux *pDemuxer = NULL;
 122
 123   try
 124   {
 125     pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream);
 126     if(!pDemuxer)
 127     {
 128       delete pInputStream;
 129       CLog::Log(LOGERROR, "%s - Error creating demuxer", __FUNCTION__);
 130       return false;
 131     }
 132   }
 133   catch(...)
 134   {
 135     CLog::Log(LOGERROR, "%s - Exception thrown when opening demuxer", __FUNCTION__);
 136     if (pDemuxer)
 137       delete pDemuxer;
 138     delete pInputStream;
 139     return false;
 140   }
 141
 142   if (pStreamDetails)
 143   {
 144     DemuxerToStreamDetails(pInputStream, pDemuxer, *pStreamDetails, strPath);
 145
 146     //extern subtitles
 147     std::vector<CStdString> filenames;
 148     CStdString video_path;
 149     if (strPath.empty())
 150       video_path = pInputStream->GetFileName();
 151     else
 152       video_path = strPath;
 153
 154     CUtil::ScanForExternalSubtitles(video_path, filenames);
 155
 156     for(unsigned int i=0;i<filenames.size();i++)
 157     {
 158       // if vobsub subtitle:
 159       if (URIUtils::GetExtension(filenames[i]) == ".idx")
 160       {
 161         CStdString strSubFile;
 162         if ( CUtil::FindVobSubPair(filenames, filenames[i], strSubFile) )
 163           AddExternalSubtitleToDetails(video_path, *pStreamDetails, filenames[i], strSubFile);
 164       }
 165       else
 166       {
 167         if ( !CUtil::IsVobSub(filenames, filenames[i]) )
 168         {
 169           AddExternalSubtitleToDetails(video_path, *pStreamDetails, filenames[i]);
 170         }
 171       }
 172     }
 173   }
 174
 175   int nVideoStream = -1;
 176   for (int i = 0; i < pDemuxer->GetNrOfStreams(); i++)
 177   {
 178     CDemuxStream* pStream = pDemuxer->GetStream(i);
 179     if (pStream)
 180     {
 181       if(pStream->type == STREAM_VIDEO)
 182         nVideoStream = i;
 183       else
 184         pStream->SetDiscard(AVDISCARD_ALL);
 185     }
 186   }
 187
 188   bool bOk = false;
 189   int packetsTried = 0;
 190
 191   if (nVideoStream != -1)
 192   {
 193     CDVDVideoCodec *pVideoCodec;
 194
 195     CDVDStreamInfo hint(*pDemuxer->GetStream(nVideoStream), true);
 196     hint.software = true;
 197
 198     if (hint.codec == AV_CODEC_ID_MPEG2VIDEO || hint.codec == AV_CODEC_ID_MPEG1VIDEO)
 199     {
 200       // libmpeg2 is not thread safe so use ffmepg for mpeg2/mpeg1 thumb extraction
 201       CDVDCodecOptions dvdOptions;
 202       pVideoCodec = CDVDFactoryCodec::OpenCodec(new CDVDVideoCodecFFmpeg(), hint, dvdOptions);
 203     }
 204     else
 205     {
 206       pVideoCodec = CDVDFactoryCodec::CreateVideoCodec( hint );
 207     }
 208
 209     if (pVideoCodec)
 210     {
 211       int nTotalLen = pDemuxer->GetStreamLength();
 212       int nSeekTo = nTotalLen / 3;
 213
 214       CLog::Log(LOGDEBUG,"%s - seeking to pos %dms (total: %dms) in %s", __FUNCTION__, nSeekTo, nTotalLen, redactPath.c_str());
 215       if (pDemuxer->SeekTime(nSeekTo, true))
 216       {
 217         int iDecoderState = VC_ERROR;
 218         DVDVideoPicture picture;
 219
 220         memset(&picture, 0, sizeof(picture));
 221
 222         // num streams * 80 frames, should get a valid frame, if not abort.
 223         int abort_index = pDemuxer->GetNrOfStreams() * 80;
 224         do
 225         {
 226           DemuxPacket* pPacket = pDemuxer->Read();
 227           packetsTried++;
 228
 229           if (!pPacket)
 230             break;
 231
 232           if (pPacket->iStreamId != nVideoStream)
 233           {
 234             CDVDDemuxUtils::FreeDemuxPacket(pPacket);
 235             continue;
 236           }
 237
 238           iDecoderState = pVideoCodec->Decode(pPacket->pData, pPacket->iSize, pPacket->dts, pPacket->pts);
 239           CDVDDemuxUtils::FreeDemuxPacket(pPacket);
 240
 241           if (iDecoderState & VC_ERROR)
 242             break;
 243
 244           if (iDecoderState & VC_PICTURE)
 245           {
 246             memset(&picture, 0, sizeof(DVDVideoPicture));
 247             if (pVideoCodec->GetPicture(&picture))
 248             {
 249               if(!(picture.iFlags & DVP_FLAG_DROPPED))
 250                 break;
 251             }
 252           }
 253
 254         } while (abort_index--);
 255
 256         if (iDecoderState & VC_PICTURE && !(picture.iFlags & DVP_FLAG_DROPPED))
 257         {
 258           {
 259             unsigned int nWidth = g_advancedSettings.GetThumbSize();
 260             double aspect = (double)picture.iDisplayWidth / (double)picture.iDisplayHeight;
 261             if(hint.forced_aspect && hint.aspect != 0)
 262               aspect = hint.aspect;
 263             unsigned int nHeight = (unsigned int)((double)g_advancedSettings.GetThumbSize() / aspect);
 264
 265             DllSwScale dllSwScale;
 266             dllSwScale.Load();
 267
 268             uint8_t *pOutBuf = new uint8_t[nWidth * nHeight * 4];
 269             struct SwsContext *context = dllSwScale.sws_getContext(picture.iWidth, picture.iHeight,
 270                   PIX_FMT_YUV420P, nWidth, nHeight, PIX_FMT_BGRA, SWS_FAST_BILINEAR | SwScaleCPUFlags(), NULL, NULL, NULL);
 271
 272             if (context)
 273             {
 274               uint8_t *src[] = { picture.data[0], picture.data[1], picture.data[2], 0 };
 275               int     srcStride[] = { picture.iLineSize[0], picture.iLineSize[1], picture.iLineSize[2], 0 };
 276               uint8_t *dst[] = { pOutBuf, 0, 0, 0 };
 277               int     dstStride[] = { (int)nWidth*4, 0, 0, 0 };
 278               int orientation = DegreeToOrientation(hint.orientation);
 279               dllSwScale.sws_scale(context, src, srcStride, 0, picture.iHeight, dst, dstStride);
 280               dllSwScale.sws_freeContext(context);
 281
 282               details.width = nWidth;
 283               details.height = nHeight;
 284               CPicture::CacheTexture(pOutBuf, nWidth, nHeight, nWidth * 4, orientation, nWidth, nHeight, CTextureCache::GetCachedPath(details.file));
 285               bOk = true;
 286             }
 287
 288             dllSwScale.Unload();
 289             delete [] pOutBuf;
 290           }
 291         }
 292         else
 293         {
 294           CLog::Log(LOGDEBUG,"%s - decode failed in %s after %d packets.", __FUNCTION__, redactPath.c_str(), packetsTried);
 295         }
 296       }
 297       delete pVideoCodec;
 298     }
 299   }
 300
 301   if (pDemuxer)
 302     delete pDemuxer;
 303
 304   delete pInputStream;
 305
 306   if(!bOk)
 307   {
 308     XFILE::CFile file;
 309     if(file.OpenForWrite(CTextureCache::GetCachedPath(details.file)))
 310       file.Close();
 311   }
 312
 313   unsigned int nTotalTime = XbmcThreads::SystemClockMillis() - nTime;
 314   CLog::Log(LOGDEBUG,"%s - measured %u ms to extract thumb from file <%s> in %d packets. ", __FUNCTION__, nTotalTime, redactPath.c_str(), packetsTried);
 315   return bOk;
 316 }
 317
 318 /**
 319  * \brief Open the item pointed to by pItem and extact streamdetails
 320  * \return true if the stream details have changed
 321  */
 322 bool CDVDFileInfo::GetFileStreamDetails(CFileItem *pItem)
 323 {
 324   if (!pItem)
 325     return false;
 326
 327   CStdString strFileNameAndPath;
 328   if (pItem->HasVideoInfoTag())
 329     strFileNameAndPath = pItem->GetVideoInfoTag()->m_strFileNameAndPath;
 330
 331   if (strFileNameAndPath.empty())
 332     strFileNameAndPath = pItem->GetPath();
 333
 334   CStdString playablePath = strFileNameAndPath;
 335   if (URIUtils::IsStack(playablePath))
 336     playablePath = XFILE::CStackDirectory::GetFirstStackedFile(playablePath);
 337
 338   CDVDInputStream *pInputStream = CDVDFactoryInputStream::CreateInputStream(NULL, playablePath, "");
 339   if (!pInputStream)
 340     return false;
 341
 342   if (pInputStream->IsStreamType(DVDSTREAM_TYPE_DVD) || !pInputStream->Open(playablePath.c_str(), ""))
 343   {
 344     delete pInputStream;
 345     return false;
 346   }
 347
 348   CDVDDemux *pDemuxer = CDVDFactoryDemuxer::CreateDemuxer(pInputStream);
 349   if (pDemuxer)
 350   {
 351     bool retVal = DemuxerToStreamDetails(pInputStream, pDemuxer, pItem->GetVideoInfoTag()->m_streamDetails, strFileNameAndPath);
 352     delete pDemuxer;
 353     delete pInputStream;
 354     return retVal;
 355   }
 356   else
 357   {
 358     delete pInputStream;
 359     return false;
 360   }
 361 }
 362
 363 bool CDVDFileInfo::DemuxerToStreamDetails(CDVDInputStream *pInputStream, CDVDDemux *pDemuxer, const std::vector<CStreamDetailSubtitle> &subs, CStreamDetails &details)
 364 {
 365   bool result = DemuxerToStreamDetails(pInputStream, pDemuxer, details);
 366   for (unsigned int i = 0; i < subs.size(); i++)
 367   {
 368     CStreamDetailSubtitle* sub = new CStreamDetailSubtitle();
 369     sub->m_strLanguage = subs[i].m_strLanguage;
 370     details.AddStream(sub);
 371     result = true;
 372   }
 373   return result;
 374 }
 375
 376 /* returns true if details have been added */
 377 bool CDVDFileInfo::DemuxerToStreamDetails(CDVDInputStream *pInputStream, CDVDDemux *pDemux, CStreamDetails &details, const CStdString &path)
 378 {
 379   bool retVal = false;
 380   details.Reset();
 381
 382   for (int iStream=0; iStream<pDemux->GetNrOfStreams(); iStream++)
 383   {
 384     CDemuxStream *stream = pDemux->GetStream(iStream);
 385     if (stream->type == STREAM_VIDEO)
 386     {
 387       CStreamDetailVideo *p = new CStreamDetailVideo();
 388       p->m_iWidth = ((CDemuxStreamVideo *)stream)->iWidth;
 389       p->m_iHeight = ((CDemuxStreamVideo *)stream)->iHeight;
 390       p->m_fAspect = ((CDemuxStreamVideo *)stream)->fAspect;
 391       if (p->m_fAspect == 0.0f)
 392         p->m_fAspect = (float)p->m_iWidth / p->m_iHeight;
 393       pDemux->GetStreamCodecName(iStream, p->m_strCodec);
 394       p->m_iDuration = pDemux->GetStreamLength();
 395       p->m_strStereoMode = ((CDemuxStreamVideo *)stream)->stereo_mode;
 396
 397       // stack handling
 398       if (URIUtils::IsStack(path))
 399       {
 400         CFileItemList files;
 401         XFILE::CStackDirectory stack;
 402         stack.GetDirectory(path, files);
 403
 404         // skip first path as we already know the duration
 405         for (int i = 1; i < files.Size(); i++)
 406         {
 407            int duration = 0;
 408            if (CDVDFileInfo::GetFileDuration(files[i]->GetPath(), duration))
 409              p->m_iDuration = p->m_iDuration + duration;
 410         }
 411       }
 412
 413       // finally, calculate seconds
 414       if (p->m_iDuration > 0)
 415         p->m_iDuration = p->m_iDuration / 1000;
 416
 417       details.AddStream(p);
 418       retVal = true;
 419     }
 420
 421     else if (stream->type == STREAM_AUDIO)
 422     {
 423       CStreamDetailAudio *p = new CStreamDetailAudio();
 424       p->m_iChannels = ((CDemuxStreamAudio *)stream)->iChannels;
 425       p->m_strLanguage = stream->language;
 426       pDemux->GetStreamCodecName(iStream, p->m_strCodec);
 427       details.AddStream(p);
 428       retVal = true;
 429     }
 430
 431     else if (stream->type == STREAM_SUBTITLE)
 432     {
 433       CStreamDetailSubtitle *p = new CStreamDetailSubtitle();
 434       p->m_strLanguage = stream->language;
 435       details.AddStream(p);
 436       retVal = true;
 437     }
 438   }  /* for iStream */
 439
 440   details.DetermineBestStreams();
 441 #ifdef HAVE_LIBBLURAY
 442   // correct bluray runtime. we need the duration from the input stream, not the demuxer.
 443   if (pInputStream->IsStreamType(DVDSTREAM_TYPE_BLURAY))
 444   {
 445     if(((CDVDInputStreamBluray*)pInputStream)->GetTotalTime() > 0)
 446     {
 447       ((CStreamDetailVideo*)details.GetNthStream(CStreamDetail::VIDEO,0))->m_iDuration = ((CDVDInputStreamBluray*)pInputStream)->GetTotalTime() / 1000;
 448     }
 449   }
 450 #endif
 451   return retVal;
 452 }
 453
 454 bool CDVDFileInfo::AddExternalSubtitleToDetails(const CStdString &path, CStreamDetails &details, const std::string& filename, const std::string& subfilename)
 455 {
 456   std::string ext = URIUtils::GetExtension(filename);
 457   std::string vobsubfile = subfilename;
 458   if(ext == ".idx")
 459   {
 460     if (vobsubfile.empty())
 461       vobsubfile = URIUtils::ReplaceExtension(filename, ".sub");
 462
 463     CDVDDemuxVobsub v;
 464     if(!v.Open(filename, vobsubfile))
 465       return false;
 466
 467     int count = v.GetNrOfStreams();
 468
 469     for(int i = 0; i < count; i++)
 470     {
 471       CStreamDetailSubtitle *dsub = new CStreamDetailSubtitle();
 472       CDemuxStream* stream = v.GetStream(i);
 473       std::string lang = stream->language;
 474       dsub->m_strLanguage = g_LangCodeExpander.ConvertToISO6392T(lang);
 475       details.AddStream(dsub);
 476     }
 477     return true;
 478   }
 479   if(ext == ".sub")
 480   {
 481     CStdString strReplace(URIUtils::ReplaceExtension(filename,".idx"));
 482     if (XFILE::CFile::Exists(strReplace))
 483       return false;
 484   }
 485
 486   CStreamDetailSubtitle *dsub = new CStreamDetailSubtitle();
 487   ExternalStreamInfo info;
 488   CUtil::GetExternalStreamDetailsFromFilename(path, filename, info);
 489   dsub->m_strLanguage = g_LangCodeExpander.ConvertToISO6392T(info.language);
 490   details.AddStream(dsub);
 491
 492   return true;
 493 }
 494