int MP3ImportFileHandle::Import(TrackFactory *trackFactory, TrackHolders &outTracks,
Tags *tags)
{
outTracks.clear();
CreateProgress();
/* Prepare decoder data, initialize decoder */
mPrivateData.file = mFile;
mPrivateData.inputBuffer = new unsigned char [INPUT_BUFFER_SIZE];
mPrivateData.progress = mProgress.get();
mPrivateData.updateResult= eProgressSuccess;
mPrivateData.id3checked = false;
mPrivateData.numChannels = 0;
mPrivateData.trackFactory= trackFactory;
mad_decoder_init(&mDecoder, &mPrivateData, input_cb, 0, 0, output_cb, error_cb, 0);
/* and send the decoder on its way! */
bool res = (mad_decoder_run(&mDecoder, MAD_DECODER_MODE_SYNC) == 0) &&
(mPrivateData.numChannels > 0) &&
!(mPrivateData.updateResult == eProgressCancelled) &&
!(mPrivateData.updateResult == eProgressFailed);
mad_decoder_finish(&mDecoder);
delete[] mPrivateData.inputBuffer;
if (!res) {
/* failure */
/* printf("failure\n"); */
return (mPrivateData.updateResult);
}
/* success */
/* printf("success\n"); */
/* copy the WaveTrack pointers into the Track pointer list that
* we are expected to fill */
for(const auto &channel : mPrivateData.channels) {
channel->Flush();
}
outTracks.swap(mPrivateData.channels);
/* Read in any metadata */
ImportID3(tags);
return mPrivateData.updateResult;
}
ProgressResult LOFImportFileHandle::Import(TrackFactory * WXUNUSED(trackFactory), TrackHolders &outTracks,
Tags * WXUNUSED(tags))
{
outTracks.clear();
wxASSERT(mTextFile->IsOpened());
if(mTextFile->Eof())
{
mTextFile->Close();
return ProgressResult::Failed;
}
wxString line = mTextFile->GetFirstLine();
while (!mTextFile->Eof())
{
lofOpenFiles(&line);
line = mTextFile->GetNextLine();
}
// for last line
lofOpenFiles(&line);
// set any duration/offset factors for last window, as all files were called
doDuration();
doScrollOffset();
// exited ok
if(mTextFile->Close())
return ProgressResult::Success;
return ProgressResult::Failed;
}
ProgressResult LOFImportFileHandle::Import(
TrackFactory * WXUNUSED(trackFactory), TrackHolders &outTracks,
Tags * WXUNUSED(tags))
{
// Unlike other ImportFileHandle subclasses, this one never gives any tracks
// back to the caller.
// Instead, it recursively calls AudacityProject::Import for each file listed
// in the .lof file.
// Each importation creates a NEW undo state.
// If there is an error or exception during one of them, only that one's
// side effects are rolled back, and the rest of the import list is skipped.
// The file may have "window" directives that cause NEW AudacityProjects
// to be created, and the undo states are pushed onto the latest project.
// If a project is created but the first file import into it fails, destroy
// the project.
outTracks.clear();
wxASSERT(mTextFile->IsOpened());
if(mTextFile->Eof())
{
mTextFile->Close();
return ProgressResult::Failed;
}
wxString line = mTextFile->GetFirstLine();
while (!mTextFile->Eof())
{
lofOpenFiles(&line);
line = mTextFile->GetNextLine();
}
// for last line
lofOpenFiles(&line);
if(!mTextFile->Close())
return ProgressResult::Failed;
// set any duration/offset factors for last window, as all files were called
doDurationAndScrollOffset();
return ProgressResult::Success;
}
ProgressResult QTImportFileHandle::Import(TrackFactory *trackFactory,
TrackHolders &outTracks,
Tags *tags)
{
outTracks.clear();
OSErr err = noErr;
MovieAudioExtractionRef maer = NULL;
auto updateResult = ProgressResult::Success;
auto totSamples =
(sampleCount) GetMovieDuration(mMovie); // convert from TimeValue
decltype(totSamples) numSamples = 0;
Boolean discrete = true;
UInt32 quality = kQTAudioRenderQuality_Max;
AudioStreamBasicDescription desc;
UInt32 maxSampleSize;
bool res = false;
auto cleanup = finally( [&] {
if (maer) {
MovieAudioExtractionEnd(maer);
}
} );
CreateProgress();
do
{
err = MovieAudioExtractionBegin(mMovie, 0, &maer);
if (err != noErr) {
AudacityMessageBox(_("Unable to start QuickTime extraction"));
break;
}
err = MovieAudioExtractionSetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_RenderQuality,
sizeof(quality),
&quality);
if (err != noErr) {
AudacityMessageBox(_("Unable to set QuickTime render quality"));
break;
}
err = MovieAudioExtractionSetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Movie,
kQTMovieAudioExtractionMoviePropertyID_AllChannelsDiscrete,
sizeof(discrete),
&discrete);
if (err != noErr) {
AudacityMessageBox(_("Unable to set QuickTime discrete channels property"));
break;
}
err = MovieAudioExtractionGetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTAudioPropertyID_MaxAudioSampleSize,
sizeof(maxSampleSize),
&maxSampleSize,
NULL);
if (err != noErr) {
AudacityMessageBox(_("Unable to get QuickTime sample size property"));
break;
}
err = MovieAudioExtractionGetProperty(maer,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof(desc),
&desc,
NULL);
if (err != noErr) {
AudacityMessageBox(_("Unable to retrieve stream description"));
break;
}
auto numchan = desc.mChannelsPerFrame;
const size_t bufsize = 5 * desc.mSampleRate;
// determine sample format
sampleFormat format;
switch (maxSampleSize)
{
case 16:
format = int16Sample;
break;
case 24:
format = int24Sample;
break;
default:
format = floatSample;
break;
}
// Allocate an array of pointers, whose size is not known statically,
// and prefixed with the AudioBufferList structure.
MallocPtr< AudioBufferList > abl{
static_cast< AudioBufferList * >(
calloc( 1, offsetof( AudioBufferList, mBuffers ) +
(sizeof(AudioBuffer) * numchan))) };
abl->mNumberBuffers = numchan;
TrackHolders channels{ numchan };
const auto size = sizeof(float) * bufsize;
ArraysOf<unsigned char> holders{ numchan, size };
for (size_t c = 0; c < numchan; c++) {
auto &buffer = abl->mBuffers[c];
auto &holder = holders[c];
auto &channel = channels[c];
buffer.mNumberChannels = 1;
buffer.mDataByteSize = size;
buffer.mData = holder.get();
channel = trackFactory->NewWaveTrack( format );
channel->SetRate( desc.mSampleRate );
if (numchan == 2) {
if (c == 0) {
channel->SetChannel(Track::LeftChannel);
channel->SetLinked(true);
}
else if (c == 1) {
channel->SetChannel(Track::RightChannel);
}
}
}
do {
UInt32 flags = 0;
UInt32 numFrames = bufsize;
err = MovieAudioExtractionFillBuffer(maer,
&numFrames,
abl.get(),
&flags);
if (err != noErr) {
AudacityMessageBox(_("Unable to get fill buffer"));
break;
}
for (size_t c = 0; c < numchan; c++) {
channels[c]->Append((char *) abl->mBuffers[c].mData, floatSample, numFrames);
}
numSamples += numFrames;
updateResult = mProgress->Update(
numSamples.as_long_long(),
totSamples.as_long_long() );
if (numFrames == 0 || flags & kQTMovieAudioExtractionComplete) {
break;
}
} while (updateResult == ProgressResult::Success);
res = (updateResult == ProgressResult::Success && err == noErr);
if (res) {
for (const auto &channel: channels) {
channel->Flush();
}
outTracks.swap(channels);
}
//
// Extract any metadata
//
if (res) {
AddMetadata(tags);
}
} while (false);
// done:
return (res ? ProgressResult::Success : ProgressResult::Failed);
}
// returns number of tracks imported
bool Importer::Import(const wxString &fName,
TrackFactory *trackFactory,
TrackHolders &tracks,
Tags *tags,
wxString &errorMessage)
{
AudacityProject *pProj = GetActiveProject();
auto cleanup = valueRestorer( pProj->mbBusyImporting, true );
wxString extension = fName.AfterLast(wxT('.'));
// Always refuse to import MIDI, even though the FFmpeg plugin pretends to know how (but makes very bad renderings)
#ifdef USE_MIDI
// MIDI files must be imported, not opened
if (IsMidi(fName)) {
errorMessage.Printf(_("\"%s\" \nis a MIDI file, not an audio file. \nAudacity cannot open this type of file for playing, but you can\nedit it by clicking File > Import > MIDI."), fName);
return false;
}
#endif
using ImportPluginPtrs = std::vector< ImportPlugin* >;
// This list is used to call plugins in correct order
ImportPluginPtrs importPlugins;
// This list is used to remember plugins that should have been compatible with the file.
ImportPluginPtrs compatiblePlugins;
// If user explicitly selected a filter,
// then we should try importing via corresponding plugin first
wxString type = gPrefs->Read(wxT("/LastOpenType"),wxT(""));
// Not implemented (yet?)
wxString mime_type = wxT("*");
// First, add user-selected filter
bool usersSelectionOverrides;
gPrefs->Read(wxT("/ExtendedImport/OverrideExtendedImportByOpenFileDialogChoice"), &usersSelectionOverrides, false);
wxLogDebug(wxT("LastOpenType is %s"),type);
wxLogDebug(wxT("OverrideExtendedImportByOpenFileDialogChoice is %i"),usersSelectionOverrides);
if (usersSelectionOverrides)
{
for (const auto &plugin : mImportPluginList)
{
if (plugin->GetPluginFormatDescription().CompareTo(type) == 0)
{
// This plugin corresponds to user-selected filter, try it first.
wxLogDebug(wxT("Inserting %s"),plugin->GetPluginStringID());
importPlugins.insert(importPlugins.begin(), plugin.get());
}
}
}
wxLogMessage(wxT("File name is %s"), fName);
wxLogMessage(wxT("Mime type is %s"), mime_type.Lower());
for (const auto &uItem : mExtImportItems)
{
ExtImportItem *item = uItem.get();
bool matches_ext = false, matches_mime = false;
wxLogDebug(wxT("Testing extensions"));
for (size_t j = 0; j < item->extensions.Count(); j++)
{
wxLogDebug(wxT("%s"), item->extensions[j].Lower());
if (wxMatchWild (item->extensions[j].Lower(),fName.Lower(), false))
{
wxLogDebug(wxT("Match!"));
matches_ext = true;
break;
}
}
if (item->extensions.Count() == 0)
{
wxLogDebug(wxT("Match! (empty list)"));
matches_ext = true;
}
if (matches_ext)
wxLogDebug(wxT("Testing mime types"));
else
wxLogDebug(wxT("Not testing mime types"));
for (size_t j = 0; matches_ext && j < item->mime_types.Count(); j++)
{
if (wxMatchWild (item->mime_types[j].Lower(),mime_type.Lower(), false))
{
wxLogDebug(wxT("Match!"));
matches_mime = true;
break;
}
}
if (item->mime_types.Count() == 0)
{
wxLogDebug(wxT("Match! (empty list)"));
matches_mime = true;
}
if (matches_ext && matches_mime)
{
wxLogDebug(wxT("Complete match!"));
for (size_t j = 0; j < item->filter_objects.size() && (item->divider < 0 || (int) j < item->divider); j++)
{
// the filter_object can be NULL if a suitable importer was not found
// this happens when we recompile with --without-ffmpeg and there
// is still ffmpeg in prefs from previous --with-ffmpeg builds
if (!(item->filter_objects[j]))
continue;
wxLogDebug(wxT("Inserting %s"),item->filter_objects[j]->GetPluginStringID());
importPlugins.push_back(item->filter_objects[j]);
}
}
}
// Add all plugins that support the extension
// Here we rely on the fact that the first plugin in mImportPluginList is libsndfile.
// We want to save this for later insertion ahead of libmad, if libmad supports the extension.
// The order of plugins in mImportPluginList is determined by the Importer constructor alone and
// is not changed by user selection overrides or any other mechanism, but we include an assert
// in case subsequent code revisions to the constructor should break this assumption that
// libsndfile is first.
ImportPlugin *libsndfilePlugin = mImportPluginList.begin()->get();
wxASSERT(libsndfilePlugin->GetPluginStringID().IsSameAs(wxT("libsndfile")));
for (const auto &plugin : mImportPluginList)
{
// Make sure its not already in the list
if (importPlugins.end() ==
std::find(importPlugins.begin(), importPlugins.end(), plugin.get()))
{
if (plugin->SupportsExtension(extension))
{
// If libmad is accidentally fed a wav file which has been incorrectly
// given an .mp3 extension then it can choke on the contents and crash.
// To avoid this, put libsndfile ahead of libmad in the lists created for
// mp3 files, or for any of the extensions supported by libmad.
// A genuine .mp3 file will first fail an attempted import with libsndfile
// but then get processed as desired by libmad.
// But a wav file which bears an incorrect .mp3 extension will be successfully
// processed by libsndfile and thus avoid being submitted to libmad.
if (plugin->GetPluginStringID().IsSameAs(wxT("libmad")))
{
// Make sure libsndfile is not already in the list
if (importPlugins.end() ==
std::find(importPlugins.begin(), importPlugins.end(), libsndfilePlugin))
{
wxLogDebug(wxT("Appending %s"),libsndfilePlugin->GetPluginStringID());
importPlugins.push_back(libsndfilePlugin);
}
}
wxLogDebug(wxT("Appending %s"),plugin->GetPluginStringID());
importPlugins.push_back(plugin.get());
}
}
}
// Add remaining plugins, except for libmad, which should not be used as a fallback for anything.
// Otherwise, if FFmpeg (libav) has not been installed, libmad will still be there near the
// end of the preference list importPlugins, where it will claim success importing FFmpeg file
// formats unsuitable for it, and produce distorted results.
for (const auto &plugin : mImportPluginList)
{
if (!(plugin->GetPluginStringID().IsSameAs(wxT("libmad"))))
{
// Make sure its not already in the list
if (importPlugins.end() ==
std::find(importPlugins.begin(), importPlugins.end(), plugin.get()))
{
wxLogDebug(wxT("Appending %s"),plugin->GetPluginStringID());
importPlugins.push_back(plugin.get());
}
}
}
// Try the import plugins, in the permuted sequences just determined
for (const auto plugin : importPlugins)
{
// Try to open the file with this plugin (probe it)
wxLogMessage(wxT("Opening with %s"),plugin->GetPluginStringID());
auto inFile = plugin->Open(fName);
if ( (inFile != NULL) && (inFile->GetStreamCount() > 0) )
{
wxLogMessage(wxT("Open(%s) succeeded"), fName);
// File has more than one stream - display stream selector
if (inFile->GetStreamCount() > 1)
{
ImportStreamDialog ImportDlg(inFile.get(), NULL, -1, _("Select stream(s) to import"));
if (ImportDlg.ShowModal() == wxID_CANCEL)
{
return false;
}
}
// One stream - import it by default
else
inFile->SetStreamUsage(0,TRUE);
auto res = inFile->Import(trackFactory, tracks, tags);
if (res == ProgressResult::Success || res == ProgressResult::Stopped)
{
// LOF ("list-of-files") has different semantics
if (extension.IsSameAs(wxT("lof"), false))
{
return true;
}
if (tracks.size() > 0)
{
// success!
return true;
}
}
if (res == ProgressResult::Cancelled || res == ProgressResult::Failed)
{
return false;
}
// We could exit here since we had a match on the file extension,
// but there may be another plug-in that can import the file and
// that may recognize the extension, so we allow the loop to
// continue.
}
}
wxLogError(wxT("Importer::Import: Opening failed."));
// None of our plugins can handle this file. It might be that
// Audacity supports this format, but support was not compiled in.
// If so, notify the user of this fact
for (const auto &unusableImportPlugin : mUnusableImportPluginList)
{
if( unusableImportPlugin->SupportsExtension(extension) )
{
errorMessage.Printf(_("This version of Audacity was not compiled with %s support."),
unusableImportPlugin->
GetPluginFormatDescription());
return false;
}
}
/* warnings for unsupported data types */
if (compatiblePlugins.empty())
{
// if someone has sent us a .cda file, send them away
if (extension.IsSameAs(wxT("cda"), false)) {
/* i18n-hint: %s will be the filename */
errorMessage.Printf(_("\"%s\" is an audio CD track. \nAudacity cannot open audio CDs directly. \nExtract (rip) the CD tracks to an audio format that \nAudacity can import, such as WAV or AIFF."), fName);
return false;
}
// playlist type files
if ((extension.IsSameAs(wxT("m3u"), false))||(extension.IsSameAs(wxT("ram"), false))||(extension.IsSameAs(wxT("pls"), false))) {
errorMessage.Printf(_("\"%s\" is a playlist file. \nAudacity cannot open this file because it only contains links to other files. \nYou may be able to open it in a text editor and download the actual audio files."), fName);
return false;
}
//WMA files of various forms
if ((extension.IsSameAs(wxT("wma"), false))||(extension.IsSameAs(wxT("asf"), false))) {
errorMessage.Printf(_("\"%s\" is a Windows Media Audio file. \nAudacity cannot open this type of file due to patent restrictions. \nYou need to convert it to a supported audio format, such as WAV or AIFF."), fName);
return false;
}
//AAC files of various forms (probably not encrypted)
if ((extension.IsSameAs(wxT("aac"), false))||(extension.IsSameAs(wxT("m4a"), false))||(extension.IsSameAs(wxT("m4r"), false))||(extension.IsSameAs(wxT("mp4"), false))) {
errorMessage.Printf(_("\"%s\" is an Advanced Audio Coding file. \nAudacity cannot open this type of file. \nYou need to convert it to a supported audio format, such as WAV or AIFF."), fName);
return false;
}
// encrypted itunes files
if ((extension.IsSameAs(wxT("m4p"), false))) {
errorMessage.Printf(_("\"%s\" is an encrypted audio file. \nThese typically are from an online music store. \nAudacity cannot open this type of file due to the encryption. \nTry recording the file into Audacity, or burn it to audio CD then \nextract the CD track to a supported audio format such as WAV or AIFF."), fName);
return false;
}
// Real Inc. files of various sorts
if ((extension.IsSameAs(wxT("ra"), false))||(extension.IsSameAs(wxT("rm"), false))||(extension.IsSameAs(wxT("rpm"), false))) {
errorMessage.Printf(_("\"%s\" is a RealPlayer media file. \nAudacity cannot open this proprietary format. \nYou need to convert it to a supported audio format, such as WAV or AIFF."), fName);
return false;
}
// Other notes-based formats
if ((extension.IsSameAs(wxT("kar"), false))||(extension.IsSameAs(wxT("mod"), false))||(extension.IsSameAs(wxT("rmi"), false))) {
errorMessage.Printf(_("\"%s\" is a notes-based file, not an audio file. \nAudacity cannot open this type of file. \nTry converting it to an audio file such as WAV or AIFF and \nthen import it, or record it into Audacity."), fName);
return false;
}
// MusePack files
if ((extension.IsSameAs(wxT("mp+"), false))||(extension.IsSameAs(wxT("mpc"), false))||(extension.IsSameAs(wxT("mpp"), false))) {
errorMessage.Printf(_("\"%s\" is a Musepack audio file. \nAudacity cannot open this type of file. \nIf you think it might be an mp3 file, rename it to end with \".mp3\" \nand try importing it again. Otherwise you need to convert it to a supported audio \nformat, such as WAV or AIFF."), fName);
return false;
}
// WavPack files
if ((extension.IsSameAs(wxT("wv"), false))||(extension.IsSameAs(wxT("wvc"), false))) {
errorMessage.Printf(_("\"%s\" is a Wavpack audio file. \nAudacity cannot open this type of file. \nYou need to convert it to a supported audio format, such as WAV or AIFF."), fName);
return false;
}
// AC3 files
if ((extension.IsSameAs(wxT("ac3"), false))) {
errorMessage.Printf(_("\"%s\" is a Dolby Digital audio file. \nAudacity cannot currently open this type of file. \nYou need to convert it to a supported audio format, such as WAV or AIFF."), fName);
return false;
}
// Speex files
if ((extension.IsSameAs(wxT("spx"), false))) {
errorMessage.Printf(_("\"%s\" is an Ogg Speex audio file. \nAudacity cannot currently open this type of file. \nYou need to convert it to a supported audio format, such as WAV or AIFF."), fName);
return false;
}
// Video files of various forms
if ((extension.IsSameAs(wxT("mpg"), false))||(extension.IsSameAs(wxT("mpeg"), false))||(extension.IsSameAs(wxT("avi"), false))||(extension.IsSameAs(wxT("wmv"), false))||(extension.IsSameAs(wxT("rv"), false))) {
errorMessage.Printf(_("\"%s\" is a video file. \nAudacity cannot currently open this type of file. \nYou need to extract the audio to a supported format, such as WAV or AIFF."), fName);
return false;
}
// Audacity project
if (extension.IsSameAs(wxT("aup"), false)) {
errorMessage.Printf(_("\"%s\" is an Audacity Project file. \nUse the 'File > Open' command to open Audacity Projects."), fName);
return false;
}
// we were not able to recognize the file type
errorMessage.Printf(_("Audacity did not recognize the type of the file '%s'.\nTry installing FFmpeg. For uncompressed files, also try File > Import > Raw Data."),fName);
}
else
{
// We DO have a plugin for this file, but import failed.
wxString pluglist;
for (const auto &plugin : compatiblePlugins)
{
if (pluglist.empty())
pluglist = plugin->GetPluginFormatDescription();
else
pluglist = wxString::Format( _("%s, %s"),
pluglist, plugin->GetPluginFormatDescription() );
}
errorMessage.Printf(_("Audacity recognized the type of the file '%s'.\nImporters supposedly supporting such files are:\n%s,\nbut none of them understood this file format."),fName, pluglist);
}
return false;
}
int FFmpegImportFileHandle::Import(TrackFactory *trackFactory,
TrackHolders &outTracks,
Tags *tags)
{
outTracks.clear();
CreateProgress();
// Remove stream contexts which are not marked for importing and adjust mScs and mNumStreams accordingly
const auto scs = mScs->get();
for (int i = 0; i < mNumStreams;)
{
if (!scs[i]->m_use)
{
for (int j = i; j < mNumStreams - 1; j++)
{
scs[j] = std::move(scs[j+1]);
}
mNumStreams--;
}
else i++;
}
mChannels.resize(mNumStreams);
int s = -1;
for (auto &stream : mChannels)
{
++s;
auto sc = scs[s].get();
switch (sc->m_stream->codec->sample_fmt)
{
case AV_SAMPLE_FMT_U8:
case AV_SAMPLE_FMT_S16:
case AV_SAMPLE_FMT_U8P:
case AV_SAMPLE_FMT_S16P:
sc->m_osamplesize = sizeof(int16_t);
sc->m_osamplefmt = int16Sample;
break;
default:
sc->m_osamplesize = sizeof(float);
sc->m_osamplefmt = floatSample;
break;
}
// There is a possibility that number of channels will change over time, but we do not have WaveTracks for NEW channels. Remember the number of channels and stick to it.
sc->m_initialchannels = sc->m_stream->codec->channels;
stream.resize(sc->m_stream->codec->channels);
int c = -1;
for (auto &channel : stream)
{
++c;
channel = trackFactory->NewWaveTrack(sc->m_osamplefmt, sc->m_stream->codec->sample_rate);
if (sc->m_stream->codec->channels == 2)
{
switch (c)
{
case 0:
channel->SetChannel(Track::LeftChannel);
channel->SetLinked(true);
break;
case 1:
channel->SetChannel(Track::RightChannel);
break;
}
}
else
{
channel->SetChannel(Track::MonoChannel);
}
}
}
// Handles the start_time by creating silence. This may or may not be correct.
// There is a possibility that we should ignore first N milliseconds of audio instead. I do not know.
/// TODO: Nag FFmpeg devs about start_time until they finally say WHAT is this and HOW to handle it.
s = -1;
for (auto &stream : mChannels)
{
++s;
int64_t stream_delay = 0;
auto sc = scs[s].get();
if (sc->m_stream->start_time != int64_t(AV_NOPTS_VALUE) && sc->m_stream->start_time > 0)
{
stream_delay = sc->m_stream->start_time;
wxLogDebug(wxT("Stream %d start_time = %lld, that would be %f milliseconds."), s, (long long) sc->m_stream->start_time, double(sc->m_stream->start_time)/AV_TIME_BASE*1000);
}
if (stream_delay != 0)
{
int c = -1;
for (auto &channel : stream)
{
++c;
WaveTrack *t = channel.get();
t->InsertSilence(0,double(stream_delay)/AV_TIME_BASE);
}
}
}
// This is the heart of the importing process
// The result of Import() to be returend. It will be something other than zero if user canceled or some error appears.
int res = eProgressSuccess;
#ifdef EXPERIMENTAL_OD_FFMPEG
mUsingOD = false;
gPrefs->Read(wxT("/Library/FFmpegOnDemand"), &mUsingOD);
//at this point we know the file is good and that we have to load the number of channels in mScs[s]->m_stream->codec->channels;
//so for OD loading we create the tracks and releasee the modal lock after starting the ODTask.
if (mUsingOD) {
std::vector<ODDecodeFFmpegTask*> tasks;
//append blockfiles to each stream and add an individual ODDecodeTask for each one.
s = -1;
for (const auto &stream : mChannels) {
++s;
ODDecodeFFmpegTask* odTask =
new ODDecodeFFmpegTask(mScs, ODDecodeFFmpegTask::FromList(mChannels), mFormatContext, s);
odTask->CreateFileDecoder(mFilename);
//each stream has different duration. We need to know it if seeking is to be allowed.
sampleCount sampleDuration = 0;
auto sc = scs[s].get();
if (sc->m_stream->duration > 0)
sampleDuration = ((sampleCount)sc->m_stream->duration * sc->m_stream->time_base.num), sc->m_stream->codec->sample_rate / sc->m_stream->time_base.den;
else
sampleDuration = ((sampleCount)mFormatContext->duration *sc->m_stream->codec->sample_rate) / AV_TIME_BASE;
// printf(" OD duration samples %qi, sr %d, secs %d\n",sampleDuration, (int)sc->m_stream->codec->sample_rate, (int)sampleDuration/sc->m_stream->codec->sample_rate);
//for each wavetrack within the stream add coded blockfiles
for (int c = 0; c < sc->m_stream->codec->channels; c++) {
WaveTrack *t = stream[c].get();
odTask->AddWaveTrack(t);
sampleCount maxBlockSize = t->GetMaxBlockSize();
//use the maximum blockfile size to divide the sections (about 11secs per blockfile at 44.1khz)
for (sampleCount i = 0; i < sampleDuration; i += maxBlockSize) {
sampleCount blockLen = maxBlockSize;
if (i + blockLen > sampleDuration)
blockLen = sampleDuration - i;
t->AppendCoded(mFilename, i, blockLen, c, ODTask::eODFFMPEG);
// This only works well for single streams since we assume
// each stream is of the same duration and channels
res = mProgress->Update(i+sampleDuration*c+ sampleDuration*sc->m_stream->codec->channels*s,
sampleDuration*sc->m_stream->codec->channels*mNumStreams);
if (res != eProgressSuccess)
break;
}
}
tasks.push_back(odTask);
}
//Now we add the tasks and let them run, or DELETE them if the user cancelled
for(int i=0; i < (int)tasks.size(); i++) {
if(res==eProgressSuccess)
ODManager::Instance()->AddNewTask(tasks[i]);
else
{
delete tasks[i];
}
}
} else {
#endif
// Read next frame.
for (streamContext *sc; (sc = ReadNextFrame()) != NULL && (res == eProgressSuccess);)
{
// ReadNextFrame returns 1 if stream is not to be imported
if (sc != (streamContext*)1)
{
// Decode frame until it is not possible to decode any further
while (sc->m_pktRemainingSiz > 0 && (res == eProgressSuccess || res == eProgressStopped))
{
if (DecodeFrame(sc,false) < 0)
break;
// If something useable was decoded - write it to mChannels
if (sc->m_frameValid)
res = WriteData(sc);
}
// Cleanup after frame decoding
if (sc->m_pktValid)
{
av_free_packet(&sc->m_pkt);
sc->m_pktValid = 0;
}
}
}
// Flush the decoders.
if ((mNumStreams != 0) && (res == eProgressSuccess || res == eProgressStopped))
{
for (int i = 0; i < mNumStreams; i++)
{
auto sc = scs[i].get();
if (DecodeFrame(sc, true) == 0)
{
WriteData(sc);
if (sc->m_pktValid)
{
av_free_packet(&sc->m_pkt);
sc->m_pktValid = 0;
}
}
}
}
#ifdef EXPERIMENTAL_OD_FFMPEG
} // else -- !mUsingOD == true
#endif //EXPERIMENTAL_OD_FFMPEG
// Something bad happened - destroy everything!
if (res == eProgressCancelled || res == eProgressFailed)
return res;
//else if (res == 2), we just stop the decoding as if the file has ended
// Copy audio from mChannels to newly created tracks (destroying mChannels elements in process)
for (auto &stream : mChannels)
{
for(auto &channel : stream)
{
channel->Flush();
outTracks.push_back(std::move(channel));
}
}
// Save metadata
WriteMetadata(tags);
return res;
}
int OggImportFileHandle::Import(TrackFactory *trackFactory, TrackHolders &outTracks,
Tags *tags)
{
outTracks.clear();
wxASSERT(mFile->IsOpened());
CreateProgress();
//Number of streams used may be less than mVorbisFile->links,
//but this way bitstream matches array index.
mChannels.resize(mVorbisFile->links);
int i = -1;
for (auto &link: mChannels)
{
++i;
//Stream is not used
if (mStreamUsage[i] == 0)
{
//This is just a padding to keep bitstream number and
//array indices matched.
continue;
}
vorbis_info *vi = ov_info(mVorbisFile, i);
link.resize(vi->channels);
int c = - 1;
for (auto &channel : link) {
++c;
channel = trackFactory->NewWaveTrack(mFormat, vi->rate);
if (vi->channels == 2) {
switch (c) {
case 0:
channel->SetChannel(Track::LeftChannel);
channel->SetLinked(true);
break;
case 1:
channel->SetChannel(Track::RightChannel);
break;
}
}
else {
channel->SetChannel(Track::MonoChannel);
}
}
}
/* The number of bytes to get from the codec in each run */
#define CODEC_TRANSFER_SIZE 4096
/* The number of samples to read between calls to the callback.
* Balance between responsiveness of the GUI and throughput of import. */
#define SAMPLES_PER_CALLBACK 100000
short *mainBuffer = new short[CODEC_TRANSFER_SIZE];
/* determine endianness (clever trick courtesy of Nicholas Devillard,
* (http://www.eso.org/~ndevilla/endian/) */
int testvar = 1, endian;
if(*(char *)&testvar)
endian = 0; // little endian
else
endian = 1; // big endian
/* number of samples currently in each channel's buffer */
int updateResult = eProgressSuccess;
long bytesRead = 0;
long samplesRead = 0;
int bitstream = 0;
int samplesSinceLastCallback = 0;
// You would think that the stream would already be seeked to 0, and
// indeed it is if the file is legit. But I had several ogg files on
// my hard drive that have malformed headers, and this added call
// causes them to be read correctly. Otherwise they have lots of
// zeros inserted at the beginning
ov_pcm_seek(mVorbisFile, 0);
do {
/* get data from the decoder */
bytesRead = ov_read(mVorbisFile, (char *) mainBuffer,
CODEC_TRANSFER_SIZE,
endian,
2, // word length (2 for 16 bit samples)
1, // signed
&bitstream);
if (bytesRead == OV_HOLE) {
wxFileName ff(mFilename);
wxLogError(wxT("Ogg Vorbis importer: file %s is malformed, ov_read() reported a hole"),
ff.GetFullName().c_str());
/* http://lists.xiph.org/pipermail/vorbis-dev/2001-February/003223.html
* is the justification for doing this - best effort for malformed file,
* hence the message.
*/
continue;
} else if (bytesRead < 0) {
/* Malformed Ogg Vorbis file. */
/* TODO: Return some sort of meaningful error. */
wxLogError(wxT("Ogg Vorbis importer: ov_read() returned error %i"),
bytesRead);
break;
}
samplesRead = bytesRead / mVorbisFile->vi[bitstream].channels / sizeof(short);
/* give the data to the wavetracks */
auto iter = mChannels.begin();
std::advance(iter, bitstream);
if (mStreamUsage[bitstream] != 0)
{
auto iter2 = iter->begin();
for (int c = 0; c < mVorbisFile->vi[bitstream].channels; ++iter2, ++c)
iter2->get()->Append((char *)(mainBuffer + c),
int16Sample,
samplesRead,
mVorbisFile->vi[bitstream].channels);
}
samplesSinceLastCallback += samplesRead;
if (samplesSinceLastCallback > SAMPLES_PER_CALLBACK) {
updateResult = mProgress->Update(ov_time_tell(mVorbisFile),
ov_time_total(mVorbisFile, bitstream));
samplesSinceLastCallback -= SAMPLES_PER_CALLBACK;
}
} while (updateResult == eProgressSuccess && bytesRead != 0);
delete[]mainBuffer;
int res = updateResult;
if (bytesRead < 0)
res = eProgressFailed;
if (res == eProgressFailed || res == eProgressCancelled) {
return res;
}
for (auto &link : mChannels)
{
for (auto &channel : link) {
channel->Flush();
outTracks.push_back(std::move(channel));
}
}
//\todo { Extract comments from each stream? }
if (mVorbisFile->vc[0].comments > 0) {
tags->Clear();
for (int c = 0; c < mVorbisFile->vc[0].comments; c++) {
wxString comment = UTF8CTOWX(mVorbisFile->vc[0].user_comments[c]);
wxString name = comment.BeforeFirst(wxT('='));
wxString value = comment.AfterFirst(wxT('='));
if (name.Upper() == wxT("DATE") && !tags->HasTag(TAG_YEAR)) {
long val;
if (value.Length() == 4 && value.ToLong(&val)) {
name = TAG_YEAR;
}
}
tags->SetTag(name, value);
}
}
return res;
}
int FLACImportFileHandle::Import(TrackFactory *trackFactory,
TrackHolders &outTracks,
Tags *tags)
{
outTracks.clear();
wxASSERT(mStreamInfoDone);
CreateProgress();
mChannels.resize(mNumChannels);
auto iter = mChannels.begin();
for (int c = 0; c < mNumChannels; ++iter, ++c) {
*iter = trackFactory->NewWaveTrack(mFormat, mSampleRate);
if (mNumChannels == 2) {
switch (c) {
case 0:
iter->get()->SetChannel(Track::LeftChannel);
iter->get()->SetLinked(true);
break;
case 1:
iter->get()->SetChannel(Track::RightChannel);
break;
}
}
else {
iter->get()->SetChannel(Track::MonoChannel);
}
}
//Start OD
bool useOD = false;
#ifdef EXPERIMENTAL_OD_FLAC
useOD=true;
#endif
// TODO: Vigilant Sentry: Variable res unused after assignment (error code DA1)
// Should check the result.
#ifdef LEGACY_FLAC
bool res = (mFile->process_until_end_of_file() != 0);
#else
bool res = true;
if(!useOD)
res = (mFile->process_until_end_of_stream() != 0);
#endif
wxUnusedVar(res);
//add the task to the ODManager
if(useOD)
{
sampleCount fileTotalFrames = mNumSamples;
sampleCount maxBlockSize = mChannels.begin()->get()->GetMaxBlockSize();
for (sampleCount i = 0; i < fileTotalFrames; i += maxBlockSize) {
sampleCount blockLen = maxBlockSize;
if (i + blockLen > fileTotalFrames)
blockLen = fileTotalFrames - i;
auto iter = mChannels.begin();
for (int c = 0; c < mNumChannels; ++c, ++iter)
iter->get()->AppendCoded(mFilename, i, blockLen, c, ODTask::eODFLAC);
mUpdateResult = mProgress->Update(i, fileTotalFrames);
if (mUpdateResult != eProgressSuccess)
break;
}
bool moreThanStereo = mNumChannels>2;
for (const auto &channel : mChannels)
{
mDecoderTask->AddWaveTrack(channel.get());
if(moreThanStereo)
{
//if we have 3 more channels, they get imported on seperate tracks, so we add individual tasks for each.
ODManager::Instance()->AddNewTask(mDecoderTask);
mDecoderTask=new ODDecodeFlacTask; //TODO: see if we need to use clone to keep the metadata.
}
}
//if we have mono or a linked track (stereo), we add ONE task for the one linked wave track
if(!moreThanStereo)
ODManager::Instance()->AddNewTask(mDecoderTask);
}
//END OD
if (mUpdateResult == eProgressFailed || mUpdateResult == eProgressCancelled) {
return mUpdateResult;
}
for (const auto &channel : mChannels) {
channel->Flush();
}
outTracks.swap(mChannels);
tags->Clear();
size_t cnt = mFile->mComments.GetCount();
for (int c = 0; c < cnt; c++) {
wxString name = mFile->mComments[c].BeforeFirst(wxT('='));
wxString value = mFile->mComments[c].AfterFirst(wxT('='));
if (name.Upper() == wxT("DATE") && !tags->HasTag(TAG_YEAR)) {
long val;
if (value.Length() == 4 && value.ToLong(&val)) {
name = TAG_YEAR;
}
}
tags->SetTag(name, value);
}
return mUpdateResult;
}