Chris@148: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@148:
Chris@148: /*
Chris@148: Sonic Visualiser
Chris@148: An audio file viewer and annotation editor.
Chris@148: Centre for Digital Music, Queen Mary, University of London.
Chris@202: This file copyright 2006 Chris Cannam and QMUL.
Chris@148:
Chris@148: This program is free software; you can redistribute it and/or
Chris@148: modify it under the terms of the GNU General Public License as
Chris@148: published by the Free Software Foundation; either version 2 of the
Chris@148: License, or (at your option) any later version. See the file
Chris@148: COPYING included with this distribution for more information.
Chris@148: */
Chris@148:
Chris@148: #include "WavFileReader.h"
Chris@148:
Chris@1256: #include "base/HitCount.h"
Chris@1258: #include "base/Profiler.h"
Chris@1256:
Chris@148: #include <iostream>
Chris@148:
Chris@175: #include <QMutexLocker>
Chris@316: #include <QFileInfo>
Chris@175:
Chris@1096: using namespace std;
Chris@1096:
Chris@317: WavFileReader::WavFileReader(FileSource source, bool fileUpdating) :
Chris@148: m_file(0),
Chris@316: m_source(source),
Chris@316: m_path(source.getLocalFilename()),
Chris@823: m_seekable(false),
Chris@148: m_lastStart(0),
Chris@176: m_lastCount(0),
Chris@176: m_updating(fileUpdating)
Chris@148: {
Chris@148: m_frameCount = 0;
Chris@148: m_channelCount = 0;
Chris@148: m_sampleRate = 0;
Chris@148:
Chris@148: m_fileInfo.format = 0;
Chris@148: m_fileInfo.frames = 0;
Chris@290: m_file = sf_open(m_path.toLocal8Bit(), SFM_READ, &m_fileInfo);
Chris@148:
Chris@187: if (!m_file || (!fileUpdating && m_fileInfo.channels <= 0)) {
Chris@1279: SVDEBUG << "WavFileReader::initialize: Failed to open file at \""
Chris@1279: << m_path << "\" ("
Chris@1279: << sf_strerror(m_file) << ")" << endl;
Chris@148:
Chris@148: if (m_file) {
Chris@290: m_error = QString("Couldn't load audio file '%1':\n%2")
Chris@290: .arg(m_path).arg(sf_strerror(m_file));
Chris@148: } else {
Chris@290: m_error = QString("Failed to open audio file '%1'")
Chris@290: .arg(m_path);
Chris@148: }
Chris@148: return;
Chris@148: }
Chris@148:
Chris@187: if (m_fileInfo.channels > 0) {
Chris@823:
Chris@187: m_frameCount = m_fileInfo.frames;
Chris@187: m_channelCount = m_fileInfo.channels;
Chris@187: m_sampleRate = m_fileInfo.samplerate;
Chris@823:
Chris@823: m_seekable = (m_fileInfo.seekable != 0);
Chris@823:
Chris@823: int type = m_fileInfo.format & SF_FORMAT_TYPEMASK;
Chris@1162: int subtype = m_fileInfo.format & SF_FORMAT_SUBMASK;
Chris@1162:
Chris@823: if (type >= SF_FORMAT_FLAC || type >= SF_FORMAT_OGG) {
Chris@1162: // Our m_seekable reports whether a file is rapidly
Chris@1162: // seekable, so things like Ogg don't qualify. We
Chris@1162: // cautiously report every file type of "at least" the
Chris@1162: // historical period of Ogg or FLAC as non-seekable.
Chris@823: m_seekable = false;
Chris@1162: } else if (type == SF_FORMAT_WAV && subtype <= SF_FORMAT_DOUBLE) {
Chris@1162: // libsndfile 1.0.26 has a bug (subsequently fixed in the
Chris@1162: // repo) that causes all files to be reported as
Chris@1162: // non-seekable. We know that certain common file types
Chris@1162: // are definitely seekable so, again cautiously, identify
Chris@1162: // and mark those (basically only non-adaptive WAVs).
Chris@1162: m_seekable = true;
Chris@823: }
Chris@187: }
Chris@175:
Chris@1279: SVDEBUG << "WavFileReader: Filename " << m_path << ", frame count " << m_frameCount << ", channel count " << m_channelCount << ", sample rate " << m_sampleRate << ", format " << m_fileInfo.format << ", seekable " << m_fileInfo.seekable << " adjusted to " << m_seekable << endl;
Chris@148: }
Chris@148:
Chris@148: WavFileReader::~WavFileReader()
Chris@148: {
Chris@148: if (m_file) sf_close(m_file);
Chris@148: }
Chris@148:
Chris@148: void
Chris@175: WavFileReader::updateFrameCount()
Chris@175: {
Chris@175: QMutexLocker locker(&m_mutex);
Chris@175:
Chris@1038: sv_frame_t prevCount = m_fileInfo.frames;
Chris@175:
Chris@175: if (m_file) {
Chris@175: sf_close(m_file);
Chris@290: m_file = sf_open(m_path.toLocal8Bit(), SFM_READ, &m_fileInfo);
Chris@175: if (!m_file || m_fileInfo.channels <= 0) {
Chris@1279: SVDEBUG << "WavFileReader::updateFrameCount: Failed to open file at \"" << m_path << "\" ("
Chris@1279: << sf_strerror(m_file) << ")" << endl;
Chris@175: }
Chris@175: }
Chris@175:
Chris@690: // SVDEBUG << "WavFileReader::updateFrameCount: now " << m_fileInfo.frames << endl;
Chris@175:
Chris@176: m_frameCount = m_fileInfo.frames;
Chris@176:
Chris@187: if (m_channelCount == 0) {
Chris@187: m_channelCount = m_fileInfo.channels;
Chris@187: m_sampleRate = m_fileInfo.samplerate;
Chris@187: }
Chris@187:
Chris@258: if (m_frameCount != prevCount) {
Chris@258: emit frameCountChanged();
Chris@258: }
Chris@176: }
Chris@176:
Chris@176: void
Chris@176: WavFileReader::updateDone()
Chris@176: {
Chris@176: updateFrameCount();
Chris@176: m_updating = false;
Chris@175: }
Chris@175:
Chris@1096: vector<float>
Chris@1041: WavFileReader::getInterleavedFrames(sv_frame_t start, sv_frame_t count) const
Chris@148: {
Chris@1256: static HitCount lastRead("WavFileReader: last read");
Chris@1256:
Chris@1096: if (count == 0) return {};
Chris@175:
Chris@175: QMutexLocker locker(&m_mutex);
Chris@175:
Chris@1258: Profiler profiler("WavFileReader::getInterleavedFrames");
Chris@1258:
Chris@175: if (!m_file || !m_channelCount) {
Chris@1096: return {};
Chris@175: }
Chris@148:
Chris@1040: if (start >= m_fileInfo.frames) {
Chris@690: // SVDEBUG << "WavFileReader::getInterleavedFrames: " << start
Chris@687: // << " > " << m_fileInfo.frames << endl;
Chris@1096: return {};
Chris@148: }
Chris@148:
Chris@1040: if (start + count > m_fileInfo.frames) {
Chris@148: count = m_fileInfo.frames - start;
Chris@148: }
Chris@148:
Chris@1096: // Because WaveFileModel::getSummaries() is called separately for
Chris@1096: // individual channels, it's quite common for us to be called
Chris@1096: // repeatedly for the same data. So this is worth cacheing.
Chris@1096: if (start == m_lastStart && count == m_lastCount) {
Chris@1256: lastRead.hit();
Chris@1096: return m_buffer;
Chris@1096: }
Chris@1256:
Chris@1256: // We don't actually support partial cache reads, but let's use
Chris@1256: // the term partial to refer to any forward seek and consider a
Chris@1256: // backward seek to be a miss
Chris@1256: if (start >= m_lastStart) {
Chris@1256: lastRead.partial();
Chris@1256: } else {
Chris@1256: lastRead.miss();
Chris@1256: }
Chris@1096:
Chris@1096: if (sf_seek(m_file, start, SEEK_SET) < 0) {
Chris@1096: return {};
Chris@148: }
Chris@148:
Chris@1096: vector<float> data;
Chris@1096: sv_frame_t n = count * m_fileInfo.channels;
Chris@1096: data.resize(n);
Chris@1096:
Chris@1096: m_lastStart = start;
Chris@1096: m_lastCount = count;
Chris@1096:
Chris@1096: sf_count_t readCount = 0;
Chris@1096: if ((readCount = sf_readf_float(m_file, data.data(), count)) < 0) {
Chris@1096: return {};
Chris@1096: }
Chris@1096:
Chris@1103: m_buffer = data;
Chris@1096: return data;
Chris@148: }
Chris@148:
Chris@157: void
Chris@1096: WavFileReader::getSupportedExtensions(set<QString> &extensions)
Chris@157: {
Chris@157: int count;
Chris@157:
Chris@157: if (sf_command(0, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(count))) {
Chris@157: extensions.insert("wav");
Chris@157: extensions.insert("aiff");
Chris@316: extensions.insert("aifc");
Chris@157: extensions.insert("aif");
Chris@157: return;
Chris@157: }
Chris@157:
Chris@157: SF_FORMAT_INFO info;
Chris@157: for (int i = 0; i < count; ++i) {
Chris@157: info.format = i;
Chris@157: if (!sf_command(0, SFC_GET_FORMAT_MAJOR, &info, sizeof(info))) {
Chris@783: QString ext = QString(info.extension).toLower();
Chris@783: extensions.insert(ext);
Chris@783: if (ext == "oga") {
Chris@783: // libsndfile is awfully proper, it says it only
Chris@783: // supports .oga but lots of Ogg audio files in the
Chris@783: // wild are .ogg and it will accept that
Chris@783: extensions.insert("ogg");
Chris@783: }
Chris@157: }
Chris@157: }
Chris@157: }
Chris@316:
Chris@316: bool
Chris@316: WavFileReader::supportsExtension(QString extension)
Chris@316: {
Chris@1096: set<QString> extensions;
Chris@316: getSupportedExtensions(extensions);
Chris@316: return (extensions.find(extension.toLower()) != extensions.end());
Chris@316: }
Chris@316:
Chris@316: bool
Chris@316: WavFileReader::supportsContentType(QString type)
Chris@316: {
Chris@316: return (type == "audio/x-wav" ||
Chris@316: type == "audio/x-aiff" ||
Chris@316: type == "audio/basic");
Chris@316: }
Chris@316:
Chris@316: bool
Chris@317: WavFileReader::supports(FileSource &source)
Chris@316: {
Chris@316: return (supportsExtension(source.getExtension()) ||
Chris@316: supportsContentType(source.getContentType()));
Chris@316: }
Chris@316:
Chris@316: