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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/
/// @file ffmpegsource_common.cpp
/// @brief Shared code for ffms video and audio providers
/// @ingroup video_input audio_input ffms
///
#ifdef WITH_FFMS2
#include "ffmpegsource_common.h"
#include "compat.h"
#include "format.h"
#include "options.h"
#include "utils.h"
#include <libaegisub/background_runner.h>
#include <libaegisub/fs.h>
#include <libaegisub/path.h>
#include <boost/algorithm/string/case_conv.hpp>
#include <boost/crc.hpp>
#include <boost/filesystem/path.hpp>
#include <wx/intl.h>
#include <wx/choicdlg.h>
#ifdef _WIN32
#include <objbase.h>
static void deinit_com(bool) {
CoUninitialize();
}
#else
static void deinit_com(bool) { }
#endif
FFmpegSourceProvider::FFmpegSourceProvider(agi::BackgroundRunner *br)
: COMInited(false, deinit_com)
, br(br)
{
#ifdef _WIN32
HRESULT res = CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
if (SUCCEEDED(res))
COMInited = true;
else if (res != RPC_E_CHANGED_MODE)
throw agi::EnvironmentError("COM initialization failure");
#endif
// initialize ffmpegsource
FFMS_Init(0, 1);
}
/// @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
FFMS_Index *FFmpegSourceProvider::DoIndexing(FFMS_Indexer *Indexer, agi::fs::path const& 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;
// index all audio tracks
FFMS_Index *Index;
br->Run([&](agi::ProgressSink *ps) {
ps->SetTitle(from_wx(_("Indexing")));
ps->SetMessage(from_wx(_("Reading timecodes and frame/sample data")));
TIndexCallback callback = [](int64_t Current, int64_t Total, void *Private) -> int {
auto ps = static_cast<agi::ProgressSink *>(Private);
ps->SetProgress(Current, Total);
return ps->IsCancelled();
};
Index = FFMS_DoIndexing(Indexer, Trackmask, FFMS_TRACKMASK_NONE,
nullptr, nullptr, IndexEH, callback, ps, &ErrInfo);
});
if (Index == nullptr)
throw agi::EnvironmentError(std::string("Failed to index: ") + ErrInfo.Buffer);
// write index to disk for later use
FFMS_WriteIndex(CacheName.string().c_str(), Index, &ErrInfo);
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) {
const char *CodecName = FFMS_GetCodecNameI(Indexer, i);
if (CodecName)
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;
for (auto const& track : TrackList) {
Choices.Add(agi::wxformat(_("Track %02d: %s"), track.first, track.second));
TrackNumbers.push_back(track.first);
}
int Choice = wxGetSingleChoiceIndex(
Type == FFMS_TYPE_VIDEO ? _("Multiple video tracks detected, please choose the one you wish to load:") : _("Multiple audio tracks detected, please choose the one you wish to load:"),
Type == FFMS_TYPE_VIDEO ? _("Choose video track") : _("Choose audio track"),
Choices);
if (Choice < 0)
return Choice;
return TrackNumbers[Choice];
}
/// @brief Set ffms2 log level according to setting in config.dat
void FFmpegSourceProvider::SetLogLevel() {
auto LogLevel = OPT_GET("Provider/FFmpegSource/Log Level")->GetString();
boost::to_lower(LogLevel);
if (LogLevel == "panic")
FFMS_SetLogLevel(FFMS_LOG_PANIC);
else if (LogLevel == "fatal")
FFMS_SetLogLevel(FFMS_LOG_FATAL);
else if (LogLevel == "error")
FFMS_SetLogLevel(FFMS_LOG_ERROR);
else if (LogLevel == "warning")
FFMS_SetLogLevel(FFMS_LOG_WARNING);
else if (LogLevel == "info")
FFMS_SetLogLevel(FFMS_LOG_INFO);
else if (LogLevel == "verbose")
FFMS_SetLogLevel(FFMS_LOG_VERBOSE);
else if (LogLevel == "debug")
FFMS_SetLogLevel(FFMS_LOG_DEBUG);
else
FFMS_SetLogLevel(FFMS_LOG_QUIET);
}
FFMS_IndexErrorHandling FFmpegSourceProvider::GetErrorHandlingMode() {
auto Mode = OPT_GET("Provider/Audio/FFmpegSource/Decode Error Handling")->GetString();
boost::to_lower(Mode);
if (Mode == "ignore")
return FFMS_IEH_IGNORE;
if (Mode == "clear")
return FFMS_IEH_CLEAR_TRACK;
if (Mode == "stop")
return FFMS_IEH_STOP_TRACK;
if (Mode == "abort")
return FFMS_IEH_ABORT;
return FFMS_IEH_STOP_TRACK; // questionable default?
}
/// @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.
agi::fs::path FFmpegSourceProvider::GetCacheFilename(agi::fs::path const& filename) {
// Get the size of the file to be hashed
uintmax_t len = agi::fs::Size(filename);
// Get the hash of the filename
boost::crc_32_type hash;
hash.process_bytes(filename.string().c_str(), filename.string().size());
// Generate the filename
auto result = config::path->Decode("?local/ffms2cache/" + std::to_string(hash.checksum()) + "_" + std::to_string(len) + "_" + std::to_string(agi::fs::ModifiedTime(filename)) + ".ffindex");
// Ensure that folder exists
agi::fs::CreateDirectory(result.parent_path());
return result;
}
void FFmpegSourceProvider::CleanCache() {
::CleanCache(config::path->Decode("?local/ffms2cache/"),
"*.ffindex",
OPT_GET("Provider/FFmpegSource/Cache/Size")->GetInt(),
OPT_GET("Provider/FFmpegSource/Cache/Files")->GetInt());
}
#endif // WITH_FFMS2
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