Aegisub/aegisub/src/video_provider_manager.cpp

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// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file video_provider_manager.cpp
/// @brief Keep track of installed video providers
/// @ingroup video_input
///
#include "config.h"
#include <libaegisub/log.h>
#include "compat.h"
#include "main.h"
#ifdef WITH_AVISYNTH
#include "video_provider_avs.h"
#endif
#include "video_provider_cache.h"
#include "video_provider_dummy.h"
#ifdef WITH_FFMPEGSOURCE
#include "video_provider_ffmpegsource.h"
#endif
#include "video_provider_manager.h"
#include "video_provider_yuv4mpeg.h"
/// @brief Get provider
/// @param video
/// @return
///
VideoProvider *VideoProviderFactory::GetProvider(wxString video) {
// First check special case of dummy video
if (video.StartsWith(_T("?dummy:"))) {
return new DummyVideoProvider(video.wc_str());
}
try {
VideoProvider *y4m_provider = new YUV4MPEGVideoProvider(video);
if (y4m_provider)
y4m_provider = new VideoProviderCache(y4m_provider);
return y4m_provider;
}
catch (wxString temp) {
LOG_E("manager/video/provider/yuv4mpeg") << "Provider creation failed with reason: "<< temp.c_str() << " trying other providers";
}
catch (...) {
LOG_E("manager/video/provider/yuv4mpeg") << "Provider creation failed (unknown reason) trying other providers";
}
// List of providers
std::vector<std::string> list = GetClasses(OPT_GET("Video/Provider")->GetString());
if (video.StartsWith("?dummy")) list.insert(list.begin(), "Dummy");
list.insert(list.begin(), "YUV4MPEG");
// None available
if (list.empty()) throw _T("No video providers are available.");
// Get provider
wxString error;
for (unsigned int i=0;i<list.size();i++) {
try {
// Create provider
VideoProvider *provider = Create(list[i], video);
if (provider) {
// Cache if necessary
if (provider->WantsCaching()) {
provider = new VideoProviderCache(provider);
}
return provider;
}
}
catch (wxString err) { error += list[i] + _T(" factory: ") + err + _T("\n"); }
catch (const wxChar *err) { error += list[i] + _T(" factory: ") + wxString(err) + _T("\n"); }
catch (...) { error += list[i] + _T(" factory: Unknown error\n"); }
}
// Failed
throw error;
}
/// @brief Register all providers
///
void VideoProviderFactory::RegisterProviders() {
#ifdef WITH_AVISYNTH
Register<AvisynthVideoProvider>("Avisynth");
#endif
#ifdef WITH_FFMPEGSOURCE
Register<FFmpegSourceVideoProvider>("FFmpegSource");
#endif
Register<DummyVideoProvider>("Dummy", true);
Register<YUV4MPEGVideoProvider>("YUV4MPEG", true);
}
/// DOCME
template<> VideoProviderFactory::map *FactoryBase<VideoProvider *(*)(wxString)>::classes = NULL;