| bool Impala::Core::Stream::RgbDataSrcLavc_old::InitFormatCtx | ( | ) | [inline, private] |
Definition at line 330 of file RgbDataSrcLavc_old.h.
References Impala::CmdOptions::GetInstance(), Impala::CmdOptions::GetString(), ILOG_DEBUG, ILOG_ERROR, ILOG_INFO, Impala::Core::Stream::RgbDataSrc::mBitRate, mFormatCtx, Impala::Core::Stream::RgbDataSrc::mFormatLName, Impala::Core::Stream::RgbDataSrc::mFormatName, Impala::Core::Stream::RgbDataSrc::mSrcName, and SetJumpMethod().
Referenced by Init().
00331 { 00332 // Open video file 00333 CmdOptions& options = CmdOptions::GetInstance(); 00334 String dataServer = options.GetString("dataServer"); 00335 String srcAddress = mSrcName; 00336 if (!dataServer.empty()) 00337 srcAddress = "dataserver:" + mSrcName; 00338 00339 int result = av_open_input_file(&mFormatCtx, 00340 srcAddress.c_str(), NULL, 0, NULL); 00341 00342 if (result != 0) 00343 { 00344 ILOG_ERROR("Return value from av_open_input_file(): " << result); 00345 throw (LAVCException("Unable to open: " + mSrcName, 0)); 00346 return false; 00347 } 00348 00349 #if LIBAVFORMAT_VERSION_INT >= ((51<<16)+(14<<8)+0) // from version 51.14.0 on 00350 if (mFormatCtx->iformat->flags & AVFMT_GENERIC_INDEX) 00351 { 00352 // if flag not initially cleared, may result in invalid data; 00353 // mFormatCtx is not available until input file is opened 00354 mFormatCtx->iformat->flags -= AVFMT_GENERIC_INDEX; 00355 ILOG_DEBUG("Flag cleared: mFormatCtx->iformat->flags -= " << 00356 "AVFMT_GENERIC_INDEX"); 00357 00358 // re-open the file 00359 result = av_open_input_file(&mFormatCtx, 00360 srcAddress.c_str(), NULL, 0, NULL); 00361 } 00362 #endif 00363 00364 // Retrieve stream information 00365 if (av_find_stream_info(mFormatCtx) < 0) 00366 throw LAVCException("Could not find stream info in: " + mSrcName, 0); 00367 00368 // Dump information about file onto standard error 00369 dump_format(mFormatCtx, 0, mSrcName.c_str(), false); 00370 00371 mFormatCtx->flags |= AVFMT_FLAG_GENPTS; 00372 00373 mBitRate = mFormatCtx->bit_rate; 00374 mFormatName = mFormatCtx->iformat->name; 00375 mFormatLName = mFormatCtx->iformat->long_name; 00376 ILOG_INFO("Format name is: " << mFormatLName << " (" << mFormatName << ")"); 00377 00378 if ((mFormatName == "avi") || 00379 (mFormatName == "mov,mp4,m4a,3gp,3g2,mj2")) 00380 { 00381 SetJumpMethod("pts"); 00382 } 00383 else 00384 { 00385 //SK, 16-Mar-2009: It appears the following clause should 00386 // never be used anyway. 00387 //#if LIBAVFORMAT_VERSION_INT >= ((51<<16)+(14<<8)+0) 00388 // // SK, 11-Mar-2009: this appeared not to work out well for AVI: 00389 // int oldFlags = mFormatCtx->iformat->flags; 00390 // ILOG_DEBUG("Changing mFormatCtx->iformat->flags from " << 00391 // oldFlags << " into " << (oldFlags | AVFMT_GENERIC_INDEX)); 00392 // mFormatCtx->iformat->flags |= AVFMT_GENERIC_INDEX; 00393 //#endif 00394 } 00395 00396 return true; 00397 }
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