mirror of https://github.com/odrling/Aegisub
127 lines
4.3 KiB
C++
127 lines
4.3 KiB
C++
// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// Aegisub Project http://www.aegisub.org/
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#include "audio_provider_factory.h"
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#include "factory_manager.h"
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#include "options.h"
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#include "utils.h"
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#include <libaegisub/audio/provider.h>
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#include <libaegisub/fs.h>
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#include <libaegisub/log.h>
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#include <libaegisub/path.h>
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#include <boost/range/iterator_range.hpp>
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using namespace agi;
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std::unique_ptr<AudioProvider> CreateAvisynthAudioProvider(fs::path const& filename, BackgroundRunner *);
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std::unique_ptr<AudioProvider> CreateFFmpegSourceAudioProvider(fs::path const& filename, BackgroundRunner *);
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namespace {
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struct factory {
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const char *name;
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std::unique_ptr<AudioProvider> (*create)(fs::path const&, BackgroundRunner *);
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bool hidden;
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};
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const factory providers[] = {
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{"Dummy", CreateDummyAudioProvider, true},
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{"PCM", CreatePCMAudioProvider, true},
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#ifdef WITH_FFMS2
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{"FFmpegSource", CreateFFmpegSourceAudioProvider, false},
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#endif
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#ifdef WITH_AVISYNTH
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{"Avisynth", CreateAvisynthAudioProvider, false},
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#endif
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};
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}
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std::vector<std::string> GetAudioProviderNames() {
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return ::GetClasses(boost::make_iterator_range(std::begin(providers), std::end(providers)));
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}
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std::unique_ptr<AudioProvider> GetAudioProvider(fs::path const& filename, BackgroundRunner *br) {
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auto preferred = OPT_GET("Audio/Provider")->GetString();
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auto sorted = GetSorted(boost::make_iterator_range(std::begin(providers), std::end(providers)), preferred);
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std::unique_ptr<AudioProvider> provider;
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bool found_file = false;
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bool found_audio = false;
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std::string msg_all; // error messages from all attempted providers
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std::string msg_partial; // error messages from providers that could partially load the file (knows container, missing codec)
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for (auto const& factory : sorted) {
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try {
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provider = factory->create(filename, br);
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if (!provider) continue;
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LOG_I("audio_provider") << "Using audio provider: " << factory->name;
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break;
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}
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catch (fs::FileNotFound const& err) {
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LOG_D("audio_provider") << err.GetMessage();
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msg_all += std::string(factory->name) + ": " + err.GetMessage() + " not found.\n";
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}
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catch (AudioDataNotFound const& err) {
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LOG_D("audio_provider") << err.GetMessage();
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found_file = true;
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msg_all += std::string(factory->name) + ": " + err.GetMessage() + "\n";
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}
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catch (AudioProviderError const& err) {
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LOG_D("audio_provider") << err.GetMessage();
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found_audio = true;
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found_file = true;
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std::string thismsg = std::string(factory->name) + ": " + err.GetMessage() + "\n";
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msg_all += thismsg;
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msg_partial += thismsg;
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}
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}
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if (!provider) {
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if (found_audio)
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throw AudioProviderError(msg_partial);
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if (found_file)
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throw AudioDataNotFound(msg_all);
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throw fs::FileNotFound(filename);
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}
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bool needs_cache = provider->NeedsCache();
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// Give it a converter if needed
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if (provider->GetBytesPerSample() != 2 || provider->GetSampleRate() < 32000 || provider->GetChannels() != 1)
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provider = CreateConvertAudioProvider(std::move(provider));
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// Change provider to RAM/HD cache if needed
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int cache = OPT_GET("Audio/Cache/Type")->GetInt();
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if (!cache || !needs_cache)
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return CreateLockAudioProvider(std::move(provider));
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// Convert to RAM
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if (cache == 1) return CreateRAMAudioProvider(std::move(provider));
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// Convert to HD
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if (cache == 2) {
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auto path = OPT_GET("Audio/Cache/HD/Location")->GetString();
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if (path == "default")
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path = "?temp";
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auto cache_dir = config::path->MakeAbsolute(config::path->Decode(path), "?temp");
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return CreateHDAudioProvider(std::move(provider), cache_dir);
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}
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throw InternalError("Invalid audio caching method");
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}
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