diff options
Diffstat (limited to 'indra/llaudio/llaudiodecodemgr.cpp')
| -rw-r--r-- | indra/llaudio/llaudiodecodemgr.cpp | 92 |
1 files changed, 67 insertions, 25 deletions
diff --git a/indra/llaudio/llaudiodecodemgr.cpp b/indra/llaudio/llaudiodecodemgr.cpp index 6a494d1983..01dfd03c18 100644 --- a/indra/llaudio/llaudiodecodemgr.cpp +++ b/indra/llaudio/llaudiodecodemgr.cpp @@ -1,31 +1,25 @@ /** * @file llaudiodecodemgr.cpp * - * $LicenseInfo:firstyear=2003&license=viewergpl$ - * - * Copyright (c) 2003-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2003&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -33,8 +27,7 @@ #include "llaudiodecodemgr.h" -#include "vorbisdecode.h" -#include "audioengine.h" +#include "llaudioengine.h" #include "lllfsthread.h" #include "llvfile.h" #include "llstring.h" @@ -43,6 +36,8 @@ #include "llassetstorage.h" #include "llrefcount.h" +#include "llvorbisencode.h" + #include "vorbis/codec.h" #include "vorbis/vorbisfile.h" @@ -180,6 +175,8 @@ LLVorbisDecodeState::LLVorbisDecodeState(const LLUUID &uuid, const std::string & mFileHandle = LLLFSThread::nullHandle(); #endif // No default value for mVF, it's an ogg structure? + // Hey, let's zero it anyway, for predictability. + memset(&mVF, 0, sizeof(mVF)); } LLVorbisDecodeState::~LLVorbisDecodeState() @@ -218,11 +215,56 @@ BOOL LLVorbisDecodeState::initDecode() return(FALSE); } - size_t size_guess = (size_t)ov_pcm_total(&mVF, -1); + S32 sample_count = ov_pcm_total(&mVF, -1); + size_t size_guess = (size_t)sample_count; vorbis_info* vi = ov_info(&mVF, -1); - size_guess *= vi->channels; + size_guess *= (vi? vi->channels : 1); size_guess *= 2; size_guess += 2048; + + bool abort_decode = false; + + if (vi) + { + if( vi->channels < 1 || vi->channels > LLVORBIS_CLIP_MAX_CHANNELS ) + { + abort_decode = true; + llwarns << "Bad channel count: " << vi->channels << llendl; + } + } + else // !vi + { + abort_decode = true; + llwarns << "No default bitstream found" << llendl; + } + + if( (size_t)sample_count > LLVORBIS_CLIP_REJECT_SAMPLES || + (size_t)sample_count <= 0) + { + abort_decode = true; + llwarns << "Illegal sample count: " << sample_count << llendl; + } + + if( size_guess > LLVORBIS_CLIP_REJECT_SIZE || + size_guess < 0) + { + abort_decode = true; + llwarns << "Illegal sample size: " << size_guess << llendl; + } + + if( abort_decode ) + { + llwarns << "Canceling initDecode. Bad asset: " << mUUID << llendl; + vorbis_comment* comment = ov_comment(&mVF,-1); + if (comment && comment->vendor) + { + llwarns << "Bad asset encoded by: " << comment->vendor << llendl; + } + delete mInFilep; + mInFilep = NULL; + return FALSE; + } + mWAVBuffer.reserve(size_guess); mWAVBuffer.resize(WAV_HEADER_SIZE); |