Move ffmpegsource_common.(cpp|h) and change the license to fit the rest of libaegisub with permission of the current license holder (Karl Blomster)

Originally committed to SVN as r5275.
This commit is contained in:
Amar Takhar 2011-02-03 15:47:43 +00:00
parent bcafbe2083
commit 93ceb59b0f
2 changed files with 505 additions and 0 deletions

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// Copyright (c) 2008-2009, Karl Blomster
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file ffmpegsource_common.cpp
/// @brief Shared code for ffms video and audio providers
/// @ingroup video_input audio_input ffms
///
#include "config.h"
#ifdef WITH_FFMPEGSOURCE
#ifndef AGI_PRE
#include <inttypes.h>
#include <map>
//#include <wx/dir.h>
//#include <wx/choicdlg.h> // Keep this last so wxUSE_CHOICEDLG is set.
#endif
#include <libaegisub/log.h>
#include "ffms_common.h"
//#include "compat.h"
//#include "ffmpegsource_common.h"
//#include "frame_main.h"
//#include "main.h"
//#include "md5.h"
//#include "standard_paths.h"
namespace agi {
namespace ffms {
/// @brief Callback function that updates the indexing progress dialog
/// @param Current The current file positition in bytes
/// @param Total The total file size in bytes
/// @param Private A pointer to the progress dialog box to update
/// @return Returns non-0 if indexing is cancelled, 0 otherwise.
///
int FFMS_CC FFmpegSourceProvider::UpdateIndexingProgress(int64_t Current, int64_t Total, void *Private) {
IndexingProgressDialog *Progress = (IndexingProgressDialog *)Private;
if (Progress->IndexingCanceled)
return 1;
// no one cares about a little bit of a rounding error here anyway
// Progress->ProgressDialog->SetProgress(((int64_t)1000*Current)/Total, 1000);
return 0;
}
/// @brief Does indexing of a source file
/// @param Indexer A pointer to the indexer object representing the file to be indexed
/// @param CacheName The filename of the output index file
/// @param Trackmask A binary mask of the track numbers to index
/// @param IgnoreDecodeErrors True if audio decoding errors will be tolerated, false otherwise
/// @return Returns the index object on success, NULL otherwise
///
FFMS_Index *FFmpegSourceProvider::DoIndexing(FFMS_Indexer *Indexer, const std::string &CacheName, int Trackmask, FFMS_IndexErrorHandling IndexEH) {
char FFMSErrMsg[1024];
FFMS_ErrorInfo ErrInfo;
ErrInfo.Buffer = FFMSErrMsg;
ErrInfo.BufferSize = sizeof(FFMSErrMsg);
ErrInfo.ErrorType = FFMS_ERROR_SUCCESS;
ErrInfo.SubType = FFMS_ERROR_SUCCESS;
std::string MsgString;
/*
// set up progress dialog callback
IndexingProgressDialog Progress;
Progress.IndexingCanceled = false;
Progress.ProgressDialog = new DialogProgress(AegisubApp::Get()->frame,
_("Indexing"), &Progress.IndexingCanceled,
_("Reading timecodes and frame/sample data"), 0, 1);
Progress.ProgressDialog->Show();
Progress.ProgressDialog->SetProgress(0,1);
// index all audio tracks
FFMS_Index *Index = FFMS_DoIndexing(Indexer, Trackmask, FFMS_TRACKMASK_NONE, NULL, NULL, IndexEH,
FFmpegSourceProvider::UpdateIndexingProgress, &Progress, &ErrInfo);
Progress.ProgressDialog->Destroy();
if (Progress.IndexingCanceled) {
throw agi::UserCancelException("indexing cancelled by user");
}
if (Index == NULL) {
MsgString.append("Failed to index: ").append(ErrInfo.Buffer);
throw MsgString;
}
// write index to disk for later use
// ignore write errors for now
FFMS_WriteIndex(CacheName.c_str(), Index, &ErrInfo);
// if (FFMS_WriteIndex(CacheName.char_str(), Index, FFMSErrMsg, MsgSize)) {
// wxString temp(FFMSErrMsg, wxConvUTF8);
// MsgString << _T("Failed to write index: ") << temp;
// throw MsgString;
// }
*/
FFMS_Index *Index;
return Index;
}
/// @brief Finds all tracks of the given type and return their track numbers and respective codec names
/// @param Indexer The indexer object representing the source file
/// @param Type The track type to look for
/// @return Returns a std::map with the track numbers as keys and the codec names as values.
std::map<int,std::string> FFmpegSourceProvider::GetTracksOfType(FFMS_Indexer *Indexer, FFMS_TrackType Type) {
std::map<int,std::string> TrackList;
int NumTracks = FFMS_GetNumTracksI(Indexer);
for (int i=0; i<NumTracks; i++) {
if (FFMS_GetTrackTypeI(Indexer, i) == Type) {
std::string CodecName(FFMS_GetCodecNameI(Indexer, i));
TrackList.insert(std::pair<int,std::string>(i, CodecName));
}
}
return TrackList;
}
/// @brief Ask user for which track he wants to load
/// @param TrackList A std::map with the track numbers as keys and codec names as values
/// @param Type The track type to ask about
/// @return Returns the track number chosen (an integer >= 0) on success, or a negative integer if the user cancelled.
/*
int FFmpegSourceProvider::AskForTrackSelection(const std::map<int,std::string> &TrackList, FFMS_TrackType Type) {
std::vector<int> TrackNumbers;
wxArrayString Choices;
std::string TypeName = "";
if (Type == FFMS_TYPE_VIDEO)
TypeName = _("video");
else if (Type == FFMS_TYPE_AUDIO)
TypeName = _("audio");
for (std::map<int,std::string>::const_iterator i = TrackList.begin(); i != TrackList.end(); i++) {
istream str;
//XXX Choices.Add(ng::Format(_("Track %02d: %s"), i->first, i->second.c_str()));
TrackNumbers.push_back(i->first);
}
int Choice = wxGetSingleChoiceIndex(wxString::Format(_("Multiple %s tracks detected, please choose the one you wish to load:"), TypeName.c_str()),
wxString::Format(_("Choose %s track"), TypeName.c_str()), Choices);
if (Choice < 0)
return Choice;
else
return TrackNumbers[Choice];
}
*/
/// @brief Set ffms2 log level according to setting in config.dat
void FFmpegSourceProvider::SetLogLevel() {
/*
wxString LogLevel = lagi_wxString(OPT_GET("Provider/FFmpegSource/Log Level")->GetString());
if (!LogLevel.CmpNoCase("panic"))
FFMS_SetLogLevel(FFMS_LOG_PANIC);
else if (!LogLevel.CmpNoCase("fatal"))
FFMS_SetLogLevel(FFMS_LOG_FATAL);
else if (!LogLevel.CmpNoCase("error"))
FFMS_SetLogLevel(FFMS_LOG_ERROR);
else if (!LogLevel.CmpNoCase("warning"))
FFMS_SetLogLevel(FFMS_LOG_WARNING);
else if (!LogLevel.CmpNoCase("info"))
FFMS_SetLogLevel(FFMS_LOG_INFO);
else if (!LogLevel.CmpNoCase("verbose"))
FFMS_SetLogLevel(FFMS_LOG_VERBOSE);
else if (!LogLevel.CmpNoCase("debug"))
FFMS_SetLogLevel(FFMS_LOG_DEBUG);
else */
FFMS_SetLogLevel(FFMS_LOG_QUIET);
}
FFMS_IndexErrorHandling FFmpegSourceProvider::GetErrorHandlingMode() {
// std::string Mode = lagi_wxString(OPT_GET("Provider/Audio/FFmpegSource/Decode Error Handling")->GetString());
std::string mode = "ignore";
if (mode == "ignore")
return FFMS_IEH_IGNORE;
else if (mode == "clear")
return FFMS_IEH_CLEAR_TRACK;
else if (mode == "stop")
return FFMS_IEH_STOP_TRACK;
else if (mode == "abort")
return FFMS_IEH_ABORT;
else
return FFMS_IEH_STOP_TRACK; // questionable default?
}
#include <inttypes.h>
/// @brief Generates an unique name for the ffms2 index file and prepares the cache folder if it doesn't exist
/// @param filename The name of the source file
/// @return Returns the generated filename.
std::string FFmpegSourceProvider::GetCacheFilename(const std::string& _filename)
{
/*
// Get the size of the file to be hashed
wxFileOffset len = 0;
{
wxFile file(_filename,wxFile::read);
if (file.IsOpened()) len = file.Length();
}
wxFileName filename(_filename);
// Generate string to be hashed
// std::string toHash = wxString::Format("%s %" PRId64 " %" PRId64, filename.GetFullName(), len, (int64_t)filename.GetModificationTime().GetTicks());
std::string toHash = "XXX";
// Get the MD5 digest of the string
const wchar_t *tmp = toHash.wc_str();
md5_state_t state;
md5_byte_t digest[16];
md5_init(&state);
md5_append(&state,(md5_byte_t*)tmp,toHash.Length()*sizeof(wchar_t));
md5_finish(&state,digest);
// Generate the filename
unsigned int *md5 = (unsigned int*) digest;
wxString result = wxString::Format("?user/ffms2cache/%08X%08X%08X%08X.ffindex",md5[0],md5[1],md5[2],md5[3]);
result = StandardPaths::DecodePath(result);
// Ensure that folder exists
wxFileName fn(result);
wxString dir = fn.GetPath();
if (!wxFileName::DirExists(dir)) {
wxFileName::Mkdir(dir);
}
wxFileName dirfn(dir);
return dirfn.GetShortPath() + "/" + fn.GetFullName();
*/
return "XXX";
}
/*
/// @brief Starts the cache cleaner thread
/// @return True on success, false if the thread could not be started.
bool FFmpegSourceProvider::CleanCache() {
LOG_D("provider/ffmpegsource/cache") << "attempting to start thread";
FFmpegSourceCacheCleaner *CleaningThread = new FFmpegSourceCacheCleaner(this);
if (CleaningThread->Create() != wxTHREAD_NO_ERROR) {
LOG_D("provider/ffmpegsource/cache") << "thread creation failed";
delete CleaningThread;
CleaningThread = NULL;
return false;
}
if (CleaningThread->Run() != wxTHREAD_NO_ERROR) {
LOG_D("provider/ffmpegsource/cache") << "failed to start thread";
delete CleaningThread;
CleaningThread = NULL;
return false;
}
LOG_D("provider/ffmpegsource/cache") << "thread started successfully";
return true;
}
/// @brief constructor
/// @param par the parent provider
FFmpegSourceCacheCleaner::FFmpegSourceCacheCleaner(FFmpegSourceProvider *par) : wxThread(wxTHREAD_DETACHED) {
parent = par;
}
/// @brief Cleans the ffms2 index cache folder
/// @return Returns non-0 on error, 0 otherwise.
wxThread::ExitCode FFmpegSourceCacheCleaner::Entry() {
wxMutexLocker lock(FFmpegSourceProvider::CleaningInProgress);
if (!lock.IsOk()) {
LOG_D("provider/ffmpegsource/cache") << "cleaning already in progress, thread exiting";
return (wxThread::ExitCode)1;
}
wxString cachedirname = StandardPaths::DecodePath(_T("?user/ffms2cache/"));
wxDir cachedir;
if (!cachedir.Open(cachedirname)) {
LOG_D("provider/ffmpegsource/cache") << "couldn't open cache directory " << cachedirname.c_str();
return (wxThread::ExitCode)1;
}
// sleep for a bit so we (hopefully) don't thrash the disk too much while indexing is in progress
wxThread::This()->Sleep(2000);
// the option is in megabytes, we need bytes
// shift left by 20 is CLEARLY more efficient than multiplying by 1048576
int64_t maxsize = OPT_GET("Provider/FFmpegSource/Cache/Size")->GetInt() << 20;
int64_t cursize = wxDir::GetTotalSize(cachedirname).GetValue();
int maxfiles = OPT_GET("Provider/FFmpegSource/Cache/Files")->GetInt();
if (!cachedir.HasFiles(_T("*.ffindex"))) {
LOG_D("provider/ffmpegsource/cache") << "no index files in cache folder, exiting";
return (wxThread::ExitCode)0;
}
int deleted = 0;
int numfiles = 0;
std::multimap<int64_t,wxFileName> cachefiles;
wxString curfn_str;
wxFileName curfn;
wxDateTime curatime;
// unusually paranoid sanity check
// (someone might have deleted the file(s) after we did HasFiles() above; does wxDir.Open() lock the dir?)
if (!cachedir.GetFirst(&curfn_str, _T("*.ffindex"), wxDIR_FILES)) {
LOG_D("provider/ffmpegsource/cache") << "undefined error";
return (wxThread::ExitCode)1;
}
numfiles++;
curfn = wxFileName(cachedirname, curfn_str);
curfn.GetTimes(&curatime, NULL, NULL);
// FIXME: will break when the time_t's wrap around!!1!
cachefiles.insert(std::pair<int64_t,wxFileName>(curatime.GetTicks(),curfn));
while (cachedir.GetNext(&curfn_str)) {
curfn = wxFileName(cachedirname, curfn_str);
curfn.GetTimes(&curatime, NULL, NULL);
cachefiles.insert(std::pair<int64_t,wxFileName>(curatime.GetTicks(),curfn));
numfiles++;
wxThread::This()->Sleep(250);
}
if (numfiles <= maxfiles && cursize <= maxsize) {
LOG_D("provider/ffmpegsource/cache") << "cache does not need cleaning (maxsize=" << (int)maxsize << ", cursize=" << (int)cursize << "; maxfiles=" << maxfiles << "numfiles=" << numfiles << ",exiting";
return (wxThread::ExitCode)0;
}
for (std::multimap<int64_t,wxFileName>::iterator i = cachefiles.begin(); i != cachefiles.end(); i++) {
// stop cleaning?
if ((cursize <= maxsize && numfiles <= maxfiles) || numfiles <= 1)
break;
int64_t fsize = i->second.GetSize().GetValue();
if (!wxRemoveFile(i->second.GetFullPath())) {
LOG_D("provider/ffmpegsource/cache") << "failed to remove file " << i->second.GetFullPath().c_str();
continue;
}
cursize -= fsize;
numfiles--;
deleted++;
wxThread::This()->Sleep(250);
}
LOG_D("provider/ffmpegsource/cache") << "deleted " << deleted << " files, exiting";
return (wxThread::ExitCode)0;
}
*/
#endif // WITH_FFMPEGSOURCE
} // namespace ffms
} // namespace agi

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// Copyright (c) 2008-2009, Karl Blomster
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file ffmpegsource_common.h
/// @see ffmpegsource_common.cpp
/// @ingroup video_input audio_input ffms
///
#ifdef WITH_FFMPEGSOURCE
#ifndef AGI_PRE
#include <map>
//#include <wx/filename.h>
//#include <wx/thread.h>
#endif
#include "../../libffms/include/ffms.h"
namespace agi {
namespace ffms {
//#include "dialog_progress.h"
/// Index all tracks
#define FFMS_TRACKMASK_ALL -1
/// Index no tracks
#define FFMS_TRACKMASK_NONE 0
/// @class FFmpegSourceProvider
/// @brief Base class for FFMS2 source providers; contains common functions etc
class FFmpegSourceProvider {
friend class FFmpegSourceCacheCleaner;
public:
/// Logging level constants from avutil/log.h
enum FFMS_LogLevel {
/// nothing printed
FFMS_LOG_QUIET = -8,
FFMS_LOG_PANIC = 0,
FFMS_LOG_FATAL = 8,
FFMS_LOG_ERROR = 16,
FFMS_LOG_WARNING = 24,
FFMS_LOG_INFO = 32,
FFMS_LOG_VERBOSE = 40,
FFMS_LOG_DEBUG = 48,
};
/// Indexing progress report dialog
struct IndexingProgressDialog {
volatile bool IndexingCanceled;
// DialogProgress *ProgressDialog;
};
/// Mutex preventing two cache cleaner threads from running at the same time
// static wxMutex CleaningInProgress;
bool CleanCache();
static int FFMS_CC UpdateIndexingProgress(int64_t Current, int64_t Total, void *Private);
FFMS_Index *DoIndexing(FFMS_Indexer *Indexer, const std::string& Cachename, int Trackmask, FFMS_IndexErrorHandling IndexEH);
std::map<int,std::string> GetTracksOfType(FFMS_Indexer *Indexer, FFMS_TrackType Type);
int AskForTrackSelection(const std::map<int,std::string>& TrackList, FFMS_TrackType Type);
std::string GetCacheFilename(const std::string& filename);
void SetLogLevel();
FFMS_IndexErrorHandling GetErrorHandlingMode();
virtual ~FFmpegSourceProvider() {}
};
/// @class FFmpegSourceCacheCleaner
/// @brief Implements index cache cleaning functionality for the FFMS2 providers
class FFmpegSourceCacheCleaner {
private:
FFmpegSourceProvider *parent;
public:
FFmpegSourceCacheCleaner(FFmpegSourceProvider *par);
~FFmpegSourceCacheCleaner() {};
// wxThread::ExitCode Entry();
};
#endif /* WITH_FFMPEGSOURCE */
} // namespace ffms
} // namespace agi