98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
// Copyright (c) 2005, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file avisynth_wrap.cpp
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/// @brief Wrapper-layer for Avisynth
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/// @ingroup video_input audio_input
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///
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#include "config.h"
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#ifdef WITH_AVISYNTH
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#include "avisynth_wrap.h"
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#include "main.h"
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// Allocate storage for and initialise static members
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int AviSynthWrapper::avs_refcount = 0;
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HINSTANCE AviSynthWrapper::hLib = NULL;
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IScriptEnvironment *AviSynthWrapper::env = NULL;
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wxMutex AviSynthWrapper::AviSynthMutex;
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/// @brief AviSynth constructor
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///
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AviSynthWrapper::AviSynthWrapper() {
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if (!avs_refcount) {
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hLib=LoadLibrary(_T("avisynth.dll"));
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if (hLib == NULL) {
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throw wxString(_T("Could not load avisynth.dll"));
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}
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FUNC *CreateScriptEnv = (FUNC*)GetProcAddress(hLib, "CreateScriptEnvironment");
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if (CreateScriptEnv == NULL) {
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throw wxString(_T("Failed to get address of CreateScriptEnv from avisynth.dll"));
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}
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// Require Avisynth 2.5.6+?
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if (OPT_GET("Provider/Avisynth/Allow Ancient")->GetBool())
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env = CreateScriptEnv(AVISYNTH_INTERFACE_VERSION-1);
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else
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env = CreateScriptEnv(AVISYNTH_INTERFACE_VERSION);
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if (env == NULL) {
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throw wxString(_T("Failed to create a new avisynth script environment. Avisynth is too old?"));
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}
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// Set memory limit
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const int memoryMax = OPT_GET("Provider/Avisynth/Memory Max")->GetInt();
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if (memoryMax != 0) {
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env->SetMemoryMax(memoryMax);
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}
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}
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avs_refcount++;
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}
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/// @brief AviSynth destructor
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///
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AviSynthWrapper::~AviSynthWrapper() {
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if (!--avs_refcount) {
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delete env;
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FreeLibrary(hLib);
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}
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}
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/// @brief Get environment
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///
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IScriptEnvironment *AviSynthWrapper::GetEnv() {
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return env;
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}
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#endif
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