forked from mia/Aegisub
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
// Copyright (c) 2006, 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 video_provider_manager.cpp
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/// @brief Keep track of installed video providers
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/// @ingroup video_input
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///
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#include "config.h"
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#ifndef MAGI_PRE
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#include <string>
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#endif
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#include <libaegisub/log.h>
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#include "libmedia/video.h"
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#ifdef WITH_AVISYNTH
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#include "../video/avs_video.h"
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#endif
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#include "../cache/video_cache.h"
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//XXX: needs fixing. #include "../video/dummy_video.h"
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#ifdef WITH_FFMPEGSOURCE
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#include "../video/ffms_video.h"
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#endif
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//XXX: needs fixing. #include "../video/yuv4mpeg.h"
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namespace media {
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/// @brief Get provider
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/// @param video
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/// @return
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///
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VideoProvider *VideoProviderFactory::GetProvider(std::string video) {
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//XXX std::vector<std::string> list = GetClasses(OPT_GET("Video/Provider")->GetString());
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std::vector<std::string> list = GetClasses("ffmpegsource");
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if (video.find("?dummy") == 0) list.insert(list.begin(), "Dummy");
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list.insert(list.begin(), "YUV4MPEG");
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bool fileFound = false;
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bool fileSupported = false;
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std::string errors;
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errors.reserve(1024);
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for (int i = 0; i < (signed)list.size(); ++i) {
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std::string err;
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try {
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VideoProvider *provider = Create(list[i], video);
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LOG_I("manager/video/provider") << list[i] << ": opened " << video;
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if (provider->WantsCaching()) {
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return new VideoProviderCache(provider);
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}
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return provider;
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}
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catch (agi::FileNotFoundError const&) {
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err = list[i] + ": file not found.";
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// Keep trying other providers as this one may just not be able to
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// open a valid path
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}
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catch (VideoNotSupported const&) {
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fileFound = true;
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err = list[i] + ": video is not in a supported format.";
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}
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catch (VideoOpenError const& ex) {
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fileSupported = true;
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err = list[i] + ": " + ex.GetMessage();
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}
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catch (agi::vfr::Error const& ex) {
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fileSupported = true;
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err = list[i] + ": " + ex.GetMessage();
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}
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errors += err;
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errors += "\n";
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LOG_D("manager/video/provider") << err;
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}
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// No provider could open the file
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LOG_E("manager/video/provider") << "Could not open " << video;
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std::string msg = "Could not open " + video + ":\n" + errors;
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if (!fileFound) throw agi::FileNotFoundError(video);
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if (!fileSupported) throw VideoNotSupported(msg);
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throw VideoOpenError(msg);
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}
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/// @brief Register all providers
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///
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void VideoProviderFactory::RegisterProviders() {
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#ifdef WITH_AVISYNTH
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Register<AvisynthVideoProvider>("Avisynth");
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#endif
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#ifdef WITH_FFMPEGSOURCE
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Register<ffms::FFmpegSourceVideoProvider>("FFmpegSource");
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#endif
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//XXX Register<DummyVideoProvider>("Dummy", true);
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//XXX Register<YUV4MPEGVideoProvider>("YUV4MPEG", true);
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}
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template<> VideoProviderFactory::map *FactoryBase<VideoProvider *(*)(std::string)>::classes = NULL;
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} // namespace media
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