mirror of https://github.com/odrling/Aegisub
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
// Copyright (c) 2022, arch1t3cht <arch1t3cht@gmail.com>
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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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/// @file ffmpegsource_common.cpp
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/// @brief Shared code for ffms video and audio providers
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/// @ingroup video_input audio_input ffms
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///
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#ifdef WITH_BESTSOURCE
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#include "bestsource_common.h"
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#include "options.h"
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#include <libaegisub/fs.h>
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#include <libaegisub/path.h>
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#include <boost/crc.hpp>
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#include <boost/filesystem/path.hpp>
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std::string GetBSCacheFile(agi::fs::path const& filename) {
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// BS can store all its index data in a single file, but we make a separate index file
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// for each video file to ensure that the old index is invalidated if the file is modified.
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// While BS does check the filesize of the files, it doesn't check the modification time.
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uintmax_t len = agi::fs::Size(filename);
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boost::crc_32_type hash;
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hash.process_bytes(filename.string().c_str(), filename.string().size());
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auto result = config::path->Decode("?local/bsindex/" + filename.filename().string() + "_" + std::to_string(hash.checksum()) + "_" + std::to_string(len) + "_" + std::to_string(agi::fs::ModifiedTime(filename)) + ".json");
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agi::fs::CreateDirectory(result.parent_path());
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return result.string();
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}
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#endif // WITH_BESTSOURCE
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