531 lines
15 KiB
C++
531 lines
15 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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ImportRaw.cpp
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Dominic Mazzoni
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*******************************************************************//**
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\file ImportRaw.cpp
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\brief Functions for guessing audio type and attempting to read from
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unknown sample audio data. Implements ImportRawDialog.
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*//****************************************************************//**
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\class ImportRawDialog
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\brief ImportRawDialog prompts you with options such as endianness
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and sample size to help you importing data of an unknown format.
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*//*******************************************************************/
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#include "../Audacity.h"
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#include "ImportRaw.h"
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#include "Import.h"
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#include "../DirManager.h"
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#include "../FileFormats.h"
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#include "../Internat.h"
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#include "../Prefs.h"
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#include "../ShuttleGui.h"
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#include "../WaveTrack.h"
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#include <cmath>
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#include <cstdio>
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#include <stdint.h>
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#include <vector>
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#include <wx/defs.h>
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#include <wx/button.h>
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#include <wx/choice.h>
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#include <wx/intl.h>
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#include <wx/msgdlg.h>
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#include <wx/panel.h>
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#include <wx/progdlg.h>
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#include <wx/sizer.h>
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#include <wx/stattext.h>
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#include <wx/textctrl.h>
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#include <wx/timer.h>
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#include "RawAudioGuess.h"
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#include "MultiFormatReader.h"
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#include "SpecPowerMeter.h"
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#include "FormatClassifier.h"
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#include "sndfile.h"
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class ImportRawDialog final : public wxDialogWrapper {
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public:
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ImportRawDialog(wxWindow * parent,
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int encoding, int channels,
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int offset, double rate);
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~ImportRawDialog();
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void OnOK(wxCommandEvent & event);
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void OnCancel(wxCommandEvent & event);
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void OnPlay(wxCommandEvent & event);
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void OnChoice(wxCommandEvent & event);
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// in and out
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int mEncoding;
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int mChannels;
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int mOffset;
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double mRate;
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double mPercent;
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private:
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wxButton *mOK;
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wxChoice *mEncodingChoice;
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wxChoice *mEndianChoice;
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wxChoice *mChannelChoice;
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wxTextCtrl *mOffsetText;
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wxTextCtrl *mPercentText;
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wxTextCtrl *mRateText;
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int mNumEncodings;
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int *mEncodingSubtype;
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DECLARE_EVENT_TABLE()
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};
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void ImportRaw(wxWindow *parent, const wxString &fileName,
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TrackFactory *trackFactory, TrackHolders &outTracks)
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{
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outTracks.clear();
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int encoding = 0; // Guess Format
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sampleFormat format;
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sf_count_t offset = 0;
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double rate = 44100.0;
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double percent = 100.0;
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TrackHolders channels;
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int updateResult = eProgressSuccess;
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{
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SF_INFO sndInfo;
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int result;
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int numChannels = 0;
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try {
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// Yes, FormatClassifier currently handles filenames in UTF8 format only, that's
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// a TODO ...
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FormatClassifier theClassifier(fileName.utf8_str());
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encoding = theClassifier.GetResultFormatLibSndfile();
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numChannels = theClassifier.GetResultChannels();
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offset = 0;
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} catch (...) {
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// Something went wrong in FormatClassifier, use defaults instead.
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encoding = 0;
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}
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if (encoding <= 0) {
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// Unable to guess. Use mono, 16-bit samples with CPU endianness
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// as the default.
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encoding = SF_FORMAT_RAW | SF_ENDIAN_CPU | SF_FORMAT_PCM_16;
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numChannels = 1;
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offset = 0;
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}
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ImportRawDialog dlog(parent, encoding, numChannels, (int)offset, rate);
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dlog.ShowModal();
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if (!dlog.GetReturnCode())
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return;
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encoding = dlog.mEncoding;
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numChannels = dlog.mChannels;
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rate = dlog.mRate;
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offset = (sf_count_t)dlog.mOffset;
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percent = dlog.mPercent;
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memset(&sndInfo, 0, sizeof(SF_INFO));
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sndInfo.samplerate = (int)rate;
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sndInfo.channels = (int)numChannels;
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sndInfo.format = encoding | SF_FORMAT_RAW;
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wxFile f; // will be closed when it goes out of scope
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SFFile sndFile;
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if (f.Open(fileName)) {
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// Even though there is an sf_open() that takes a filename, use the one that
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// takes a file descriptor since wxWidgets can open a file with a Unicode name and
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// libsndfile can't (under Windows).
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sndFile.reset(SFCall<SNDFILE*>(sf_open_fd, f.fd(), SFM_READ, &sndInfo, FALSE));
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}
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if (!sndFile){
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// TODO: Handle error
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char str[1000];
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sf_error_str((SNDFILE *)NULL, str, 1000);
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printf("%s\n", str);
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return;
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}
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result = sf_command(sndFile.get(), SFC_SET_RAW_START_OFFSET, &offset, sizeof(offset));
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if (result != 0) {
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char str[1000];
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sf_error_str(sndFile.get(), str, 1000);
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printf("%s\n", str);
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}
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SFCall<sf_count_t>(sf_seek, sndFile.get(), 0, SEEK_SET);
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auto totalFrames = (sampleCount)(sndInfo.frames * percent / 100.0);
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//
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// Sample format:
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//
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// In general, go with the user's preferences. However, if
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// the file is higher-quality, go with a format which preserves
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// the quality of the original file.
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//
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format = (sampleFormat)
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gPrefs->Read(wxT("/SamplingRate/DefaultProjectSampleFormat"), floatSample);
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if (format != floatSample &&
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sf_subtype_more_than_16_bits(encoding))
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format = floatSample;
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channels.resize(numChannels);
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auto iter = channels.begin();
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for (int c = 0; c < numChannels; ++iter, ++c) {
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const auto channel =
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(*iter = trackFactory->NewWaveTrack(format, rate)).get();
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if (numChannels > 1)
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switch (c) {
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case 0:
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channel->SetChannel(Track::LeftChannel);
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break;
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case 1:
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channel->SetChannel(Track::RightChannel);
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break;
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default:
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channel->SetChannel(Track::MonoChannel);
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}
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}
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const auto firstChannel = channels.begin()->get();
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if (numChannels == 2) {
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firstChannel->SetLinked(true);
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}
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auto maxBlockSize = firstChannel->GetMaxBlockSize();
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SampleBuffer srcbuffer(maxBlockSize * numChannels, format);
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SampleBuffer buffer(maxBlockSize, format);
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decltype(totalFrames) framescompleted = 0;
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if (totalFrames < 0) {
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wxASSERT(false);
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totalFrames = 0;
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}
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wxString msg;
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msg.Printf(_("Importing %s"), wxFileName::FileName(fileName).GetFullName().c_str());
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/* i18n-hint: 'Raw' means 'unprocessed' here and should usually be tanslated.*/
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ProgressDialog progress(_("Import Raw"), msg);
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size_t block;
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do {
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block =
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limitSampleBufferSize( maxBlockSize, totalFrames - framescompleted );
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sf_count_t result;
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if (format == int16Sample)
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result = SFCall<sf_count_t>(sf_readf_short, sndFile.get(), (short *)srcbuffer.ptr(), block);
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else
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result = SFCall<sf_count_t>(sf_readf_float, sndFile.get(), (float *)srcbuffer.ptr(), block);
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if (result >= 0) {
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block = result;
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}
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else {
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// This is not supposed to happen, sndfile.h says result is always
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// a count, not an invalid value for error
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wxASSERT(false);
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updateResult = eProgressFailed;
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break;
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}
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if (block) {
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auto iter = channels.begin();
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for(int c=0; c<numChannels; ++iter, ++c) {
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if (format==int16Sample) {
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for(decltype(block) j=0; j<block; j++)
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((short *)buffer.ptr())[j] =
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((short *)srcbuffer.ptr())[numChannels*j+c];
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}
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else {
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for(decltype(block) j=0; j<block; j++)
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((float *)buffer.ptr())[j] =
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((float *)srcbuffer.ptr())[numChannels*j+c];
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}
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iter->get()->Append(buffer.ptr(), format, block);
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}
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framescompleted += block;
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}
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updateResult = progress.Update((wxULongLong_t)framescompleted,
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(wxULongLong_t)totalFrames);
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if (updateResult != eProgressSuccess)
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break;
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} while (block > 0 && framescompleted < totalFrames);
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}
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if (updateResult == eProgressFailed || updateResult == eProgressCancelled) {
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// It's a shame we can't return proper error code
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return;
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}
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for (const auto &channel : channels)
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channel->Flush();
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outTracks.swap(channels);
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}
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//
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// ImportRawDialog
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//
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enum {
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ChoiceID = 9000,
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PlayID
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};
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BEGIN_EVENT_TABLE(ImportRawDialog, wxDialogWrapper)
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EVT_BUTTON(wxID_OK, ImportRawDialog::OnOK)
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EVT_BUTTON(wxID_CANCEL, ImportRawDialog::OnCancel)
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EVT_BUTTON(PlayID, ImportRawDialog::OnPlay)
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EVT_CHOICE(ChoiceID, ImportRawDialog::OnChoice)
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END_EVENT_TABLE()
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ImportRawDialog::ImportRawDialog(wxWindow * parent,
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int encoding, int channels,
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int offset, double rate)
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: wxDialogWrapper(parent, wxID_ANY, _("Import Raw Data"),
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wxDefaultPosition, wxDefaultSize,
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wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER),
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mEncoding(encoding),
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mChannels(channels),
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mOffset(offset),
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mRate(rate)
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{
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SetName(GetTitle());
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ShuttleGui S(this, eIsCreating);
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wxArrayString encodings;
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wxArrayString endians;
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wxArrayString chans;
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int num;
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int selection;
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int endian;
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int i;
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num = sf_num_encodings();
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mNumEncodings = 0;
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mEncodingSubtype = new int[num];
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selection = 0;
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for (i=0; i<num; i++) {
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SF_INFO info;
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memset(&info, 0, sizeof(SF_INFO));
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int subtype = sf_encoding_index_to_subtype(i);
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info.format = SF_FORMAT_RAW + SF_ENDIAN_LITTLE + subtype;
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info.channels = 1;
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info.samplerate = 44100;
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if (sf_format_check(&info)) {
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mEncodingSubtype[mNumEncodings] = subtype;
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encodings.Add(sf_encoding_index_name(i));
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if ((mEncoding & SF_FORMAT_SUBMASK) == subtype)
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selection = mNumEncodings;
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mNumEncodings++;
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}
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}
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/* i18n-hint: Refers to byte-order. Don't translate "endianness" if you don't
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know the correct technical word. */
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endians.Add(_("No endianness"));
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/* i18n-hint: Refers to byte-order. Don't translate this if you don't
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know the correct technical word. */
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endians.Add(_("Little-endian"));
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/* i18n-hint: Refers to byte-order. Don't translate this if you don't
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know the correct technical word. */
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endians.Add(_("Big-endian"));
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/* i18n-hint: Refers to byte-order. Don't translate "endianness" if you don't
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know the correct technical word. */
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endians.Add(_("Default endianness"));
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switch (mEncoding & (SF_FORMAT_ENDMASK))
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{
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default:
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case SF_ENDIAN_FILE:
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endian = 0;
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break;
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case SF_ENDIAN_LITTLE:
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endian = 1;
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break;
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case SF_ENDIAN_BIG:
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endian = 2;
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break;
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case SF_ENDIAN_CPU:
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endian = 3;
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break;
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}
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chans.Add(_("1 Channel (Mono)"));
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chans.Add(_("2 Channels (Stereo)"));
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for (i=2; i<16; i++) {
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chans.Add(wxString::Format(_("%d Channels"), i + 1));
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}
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S.StartVerticalLay(false);
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{
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S.SetBorder(5);
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S.StartTwoColumn();
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{
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mEncodingChoice = S.Id(ChoiceID).AddChoice(_("Encoding:"),
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encodings[selection],
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&encodings);
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mEndianChoice = S.Id(ChoiceID).AddChoice(_("Byte order:"),
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endians[endian],
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&endians);
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mChannelChoice = S.Id(ChoiceID).AddChoice(_("Channels:"),
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chans[mChannels-1],
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&chans);
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}
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S.EndTwoColumn();
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S.SetBorder(5);
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S.StartMultiColumn(3);
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{
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// Offset text
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/* i18n-hint: (noun)*/
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mOffsetText = S.AddTextBox(_("Start offset:"),
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wxString::Format(wxT("%d"), mOffset),
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12);
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S.AddUnits(_("bytes"));
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// Percent text
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mPercentText = S.AddTextBox(_("Amount to import:"),
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wxT("100"),
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12);
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S.AddUnits(wxT("%"));
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// Rate text
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/* i18n-hint: (noun)*/
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mRateText = S.AddTextBox(_("Sample rate:"),
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wxString::Format(wxT("%d"), (int)mRate),
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12);
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/* i18n-hint: This is the abbreviation for "Hertz", or
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cycles per second. */
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S.AddUnits(_("Hz"));
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}
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S.EndMultiColumn();
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//
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// Preview Pane goes here
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//
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S.AddStandardButtons();
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// Find the OK button, and change its text to 'Import'.
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// We MUST set mOK because it is used later.
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mOK = (wxButton *)wxWindow::FindWindowById(wxID_OK, this);
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mOK->SetLabel(_("&Import"));
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}
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S.EndVerticalLay();
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Fit();
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SetSizeHints(GetSize());
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Centre(wxBOTH);
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}
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ImportRawDialog::~ImportRawDialog()
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{
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delete[] mEncodingSubtype;
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}
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void ImportRawDialog::OnOK(wxCommandEvent & WXUNUSED(event))
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{
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long l;
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mEncoding = mEncodingSubtype[mEncodingChoice->GetSelection()];
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mEncoding += (mEndianChoice->GetSelection() * 0x10000000);
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mChannels = mChannelChoice->GetSelection() + 1;
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mOffsetText->GetValue().ToLong(&l);
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mOffset = l;
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mPercentText->GetValue().ToDouble(&mPercent);
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mRateText->GetValue().ToDouble(&mRate);
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if (mChannels < 1 || mChannels > 16)
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mChannels = 1;
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if (mOffset < 0)
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mOffset = 0;
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if (mPercent < 0.0)
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mPercent = 0.0;
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if (mPercent > 100.0)
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mPercent = 100.0;
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if (mRate < 100.0)
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mRate = 100.0;
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if (mRate > 100000.0)
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mRate = 100000.0;
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EndModal(true);
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}
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void ImportRawDialog::OnCancel(wxCommandEvent & WXUNUSED(event))
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{
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EndModal(false);
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}
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void ImportRawDialog::OnPlay(wxCommandEvent & WXUNUSED(event))
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{
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}
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void ImportRawDialog::OnChoice(wxCommandEvent & WXUNUSED(event))
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{
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SF_INFO info;
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memset(&info, 0, sizeof(SF_INFO));
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mEncoding = mEncodingSubtype[mEncodingChoice->GetSelection()];
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mEncoding += (mEndianChoice->GetSelection() * 0x10000000);
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info.format = mEncoding | SF_FORMAT_RAW;
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info.channels = mChannelChoice->GetSelection() + 1;
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info.samplerate = 44100;
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//mOK = (wxButton *)wxWindow::FindWindowById(wxID_OK, this);
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if (sf_format_check(&info)) {
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mOK->Enable(true);
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return;
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}
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// Try it with 1-channel
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info.channels = 1;
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if (sf_format_check(&info)) {
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mChannelChoice->SetSelection(0);
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mOK->Enable(true);
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return;
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}
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// Otherwise, this is an unsupported format
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mOK->Enable(false);
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}
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