mirror of https://github.com/odrling/Aegisub
108 lines
3.9 KiB
C++
108 lines
3.9 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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/// @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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#include "video_provider_manager.h"
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#include "options.h"
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#include "video_provider_avs.h"
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#include "video_provider_cache.h"
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#include "video_provider_dummy.h"
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#include "video_provider_ffmpegsource.h"
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#include "video_provider_yuv4mpeg.h"
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#include <libaegisub/fs.h>
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#include <libaegisub/log.h>
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#include <libaegisub/util.h>
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std::unique_ptr<VideoProvider> VideoProviderFactory::GetProvider(agi::fs::path const& video_file, std::string const& colormatrix) {
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std::vector<std::string> factories = GetClasses(OPT_GET("Video/Provider")->GetString());
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factories.insert(factories.begin(), "YUV4MPEG");
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factories.insert(factories.begin(), "Dummy");
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bool found = false;
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bool supported = false;
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std::string errors;
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errors.reserve(1024);
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for (auto const& factory : factories) {
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std::string err;
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try {
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auto provider = Create(factory, video_file, colormatrix);
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LOG_I("manager/video/provider") << factory << ": opened " << video_file;
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return provider->WantsCaching() ? agi::util::make_unique<VideoProviderCache>(std::move(provider)) : std::move(provider);
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}
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catch (agi::fs::FileNotFound const&) {
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err = "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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found = true;
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err = "video is not in a supported format.";
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}
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catch (VideoOpenError const& ex) {
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supported = true;
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err = ex.GetMessage();
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}
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catch (agi::vfr::Error const& ex) {
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supported = true;
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err = ex.GetMessage();
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}
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errors += factory + ": " + err + "\n";
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LOG_D("manager/video/provider") << factory << ": " << 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_file;
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std::string msg = "Could not open " + video_file.string() + ":\n" + errors;
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if (!found) throw agi::fs::FileNotFound(video_file.string());
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if (!supported) throw VideoNotSupported(msg);
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throw VideoOpenError(msg);
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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_FFMS2
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Register<FFmpegSourceVideoProvider>("FFmpegSource");
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#endif
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Register<DummyVideoProvider>("Dummy", true);
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Register<YUV4MPEGVideoProvider>("YUV4MPEG", true);
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}
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