forked from mia/Aegisub
270 lines
9.1 KiB
C++
270 lines
9.1 KiB
C++
// Copyright (c) 2008, Karl Blomster
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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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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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#include "config.h"
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#ifdef WITH_FFMPEGSOURCE
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///////////
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// Headers
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#include <wx/wxprec.h>
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#include <wx/dir.h>
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#include "ffmpegsource_common.h"
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#include "md5.h"
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#include "standard_paths.h"
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#include "main.h"
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#include "frame_main.h"
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#include "options.h"
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#include <map>
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// lookit dis here static shit
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wxMutex FFmpegSourceProvider::CleaningInProgress;
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///////////////
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// Update indexing progress
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int FFMS_CC FFmpegSourceProvider::UpdateIndexingProgress(int64_t Current, int64_t Total, void *Private) {
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IndexingProgressDialog *Progress = (IndexingProgressDialog *)Private;
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if (Progress->IndexingCanceled)
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return 1;
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// noone cares about a little bit of a rounding error here anyway
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Progress->ProgressDialog->SetProgress((1000*Current)/Total, 1000);
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return 0;
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}
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///////////
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// Do indexing
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FFIndex *FFmpegSourceProvider::DoIndexing(FFIndex *Index, wxString FileNameWX, wxString CacheName, int Trackmask, bool IgnoreDecodeErrors) {
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char FFMSErrMsg[1024];
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unsigned MsgSize = sizeof(FFMSErrMsg);
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wxString MsgString;
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// set up progress dialog callback
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IndexingProgressDialog Progress;
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Progress.IndexingCanceled = false;
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Progress.ProgressDialog = new DialogProgress(AegisubApp::Get()->frame, _("Indexing"), &Progress.IndexingCanceled, _("Reading timecodes and frame/sample data"), 0, 1);
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Progress.ProgressDialog->Show();
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Progress.ProgressDialog->SetProgress(0,1);
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// index all audio tracks
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Index = FFMS_MakeIndex(FileNameWX.mb_str(wxConvUTF8), Trackmask, FFMSTrackMaskNone, NULL, NULL, IgnoreDecodeErrors, FFmpegSourceProvider::UpdateIndexingProgress, &Progress, FFMSErrMsg, MsgSize);
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if (!Index) {
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Progress.ProgressDialog->Destroy();
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wxString temp(FFMSErrMsg, wxConvUTF8);
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MsgString << _T("Failed to index: ") << temp;
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throw MsgString;
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}
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Progress.ProgressDialog->Destroy();
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// write index to disk for later use
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// ignore write errors for now
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FFMS_WriteIndex(CacheName.char_str(), Index, FFMSErrMsg, MsgSize);
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/*if (FFMS_WriteIndex(CacheName.char_str(), Index, FFMSErrMsg, MsgSize)) {
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wxString temp(FFMSErrMsg, wxConvUTF8);
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MsgString << _T("Failed to write index: ") << temp;
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throw MsgString;
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} */
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return Index;
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}
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/////////////////////
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// Creates a name for the ffmpegsource2 index and prepares the folder if it doesn't exist
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// method by amz
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wxString FFmpegSourceProvider::GetCacheFilename(const wxString& filename)
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{
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// Get the size of the file to be hashed
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wxFileOffset len = 0;
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{
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wxFile file(filename,wxFile::read);
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if (file.IsOpened()) len = file.Length();
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}
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// Generate string to be hashed
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wxString toHash = filename + wxString::Format(_T(":%i"),len);
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// Get the MD5 digest of the string
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md5_state_t state;
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md5_byte_t digest[16];
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md5_init(&state);
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#if wxCHECK_VERSION(2,9,0)
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md5_append(&state,(md5_byte_t*)toHash.wc_str(),toHash.Length()*sizeof(wxChar));
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#else
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md5_append(&state,(md5_byte_t*)toHash.c_str(),toHash.Length()*sizeof(wxChar));
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#endif
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md5_finish(&state,digest);
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// Generate the filename
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unsigned int *md5 = (unsigned int*) digest;
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wxString result = wxString::Format(_T("?user/ffms2cache/%08X%08X%08X%08X.ffindex"),md5[0],md5[1],md5[2],md5[3]);
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result = StandardPaths::DecodePath(result);
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// Ensure that folder exists
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wxFileName fn(result);
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wxString dir = fn.GetPath();
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if (!wxFileName::DirExists(dir)) {
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wxFileName::Mkdir(dir);
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}
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wxFileName dirfn(dir);
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return dirfn.GetShortPath() + _T("/") + fn.GetFullName();
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}
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/////////////////////
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// fire and forget cleaning thread (well, almost)
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bool FFmpegSourceProvider::CleanCache() {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: attempting to start thread"));
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FFmpegSourceCacheCleaner *CleaningThread = new FFmpegSourceCacheCleaner(this);
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if (CleaningThread->Create() != wxTHREAD_NO_ERROR) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: thread creation failed"));
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delete CleaningThread;
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CleaningThread = NULL;
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return false;
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}
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if (CleaningThread->Run() != wxTHREAD_NO_ERROR) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: failed to start thread"));
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delete CleaningThread;
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CleaningThread = NULL;
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return false;
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}
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wxLogDebug(_T("FFmpegSourceCacheCleaner: thread started successfully"));
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return true;
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}
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/////////////////////
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// constructor
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FFmpegSourceCacheCleaner::FFmpegSourceCacheCleaner(FFmpegSourceProvider *par) : wxThread(wxTHREAD_DETACHED) {
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parent = par;
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}
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/////////////////////
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// all actual work happens here because I was too lazy to write more functions
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wxThread::ExitCode FFmpegSourceCacheCleaner::Entry() {
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wxMutexLocker lock(FFmpegSourceProvider::CleaningInProgress);
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if (!lock.IsOk()) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: cleaning already in progress, thread exiting"));
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return (wxThread::ExitCode)1;
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}
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wxString cachedirname = StandardPaths::DecodePath(_T("?user/ffms2cache/"));
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wxDir cachedir;
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if (!cachedir.Open(cachedirname)) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: couldn't open cache directory %s"), cachedirname.c_str());
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return (wxThread::ExitCode)1;
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}
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// sleep for a bit so we (hopefully) don't thrash the disk too much while indexing is in progress
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wxThread::This()->Sleep(2000);
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// the option is in megabytes, we need bytes
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// shift left by 20 is CLEARLY more efficient than multiplying by 1048576
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int64_t maxsize = Options.AsInt(_T("FFmpegSource max cache size")) << 20;
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int64_t cursize = wxDir::GetTotalSize(cachedirname).GetValue();
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int maxfiles = Options.AsInt(_T("FFmpegSource max cache files"));
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if (!cachedir.HasFiles(_T("*.ffindex"))) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: no index files in cache folder, exiting"));
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return (wxThread::ExitCode)0;
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}
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int deleted = 0;
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int numfiles = 0;
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std::multimap<int64_t,wxFileName> cachefiles;
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wxString curfn_str;
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wxFileName curfn;
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wxDateTime curatime;
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// unusually paranoid sanity check
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// (someone might have deleted the file(s) after we did HasFiles() above; does wxDir.Open() lock the dir?)
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if (!cachedir.GetFirst(&curfn_str, _T("*.ffindex"), wxDIR_FILES)) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: insanity/race condition/index dir fuckery detected, exiting"));
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return (wxThread::ExitCode)1;
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}
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numfiles++;
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curfn = wxFileName(cachedirname, curfn_str);
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curfn.GetTimes(&curatime, NULL, NULL);
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// FIXME: will break when the time_t's wrap around!!1!
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cachefiles.insert(std::pair<int64_t,wxFileName>(curatime.GetTicks(),curfn));
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while (cachedir.GetNext(&curfn_str)) {
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curfn = wxFileName(cachedirname, curfn_str);
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curfn.GetTimes(&curatime, NULL, NULL);
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cachefiles.insert(std::pair<int64_t,wxFileName>(curatime.GetTicks(),curfn));
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numfiles++;
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wxThread::This()->Sleep(250);
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}
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if (numfiles <= maxfiles && cursize <= maxsize) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: cache does not need cleaning (maxsize=%d, cursize=%d; maxfiles=%d, numfiles=%d), exiting"),
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(int)maxsize, (int)cursize, maxfiles, numfiles);
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return (wxThread::ExitCode)0;
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}
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for (std::multimap<int64_t,wxFileName>::iterator i = cachefiles.begin(); i != cachefiles.end(); i++) {
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// stop cleaning?
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if ((cursize <= maxsize && numfiles <= maxfiles) || numfiles <= 1)
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break;
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int64_t fsize = i->second.GetSize().GetValue();
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if (!wxRemoveFile(i->second.GetFullPath())) {
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wxLogDebug(_T("FFmpegSourceCacheCleaner: failed to remove file %s"),i->second.GetFullPath().c_str());
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continue;
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}
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cursize -= fsize;
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numfiles--;
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deleted++;
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wxThread::This()->Sleep(250);
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}
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wxLogDebug(_T("FFmpegSourceCacheCleaner: deleted %d files"), deleted);
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wxLogDebug(_T("FFmpegSourceCacheCleaner: done, exiting"));
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return (wxThread::ExitCode)0;
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}
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#endif WITH_FFMPEGSOURCE
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