Mercurial > hg > svcore
view data/fileio/OggVorbisFileReader.cpp @ 1125:2c43f9904068 3.0-integration
Merge from default branch
author | Chris Cannam |
---|---|
date | Thu, 20 Aug 2015 13:33:46 +0100 |
parents | fe39581d249b |
children | 0a9193dc136b |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 Chris Cannam. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND #include "OggVorbisFileReader.h" #include "base/ProgressReporter.h" #include "base/Profiler.h" #include "system/System.h" #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <cmath> #include <QFileInfo> //static int instances = 0; OggVorbisFileReader::OggVorbisFileReader(FileSource source, DecodeMode decodeMode, CacheMode mode, sv_samplerate_t targetRate, bool normalised, ProgressReporter *reporter) : CodedAudioFileReader(mode, targetRate, normalised), m_source(source), m_path(source.getLocalFilename()), m_reporter(reporter), m_fileSize(0), m_bytesRead(0), m_commentsRead(false), m_cancelled(false), m_completion(0), m_decodeThread(0) { m_channelCount = 0; m_fileRate = 0; // SVDEBUG << "OggVorbisFileReader::OggVorbisFileReader(" << m_path << "): now have " << (++instances) << " instances" << endl; Profiler profiler("OggVorbisFileReader::OggVorbisFileReader", true); QFileInfo info(m_path); m_fileSize = info.size(); if (!(m_oggz = oggz_open(m_path.toLocal8Bit().data(), OGGZ_READ))) { m_error = QString("File %1 is not an OGG file.").arg(m_path); return; } FishSoundInfo fsinfo; m_fishSound = fish_sound_new(FISH_SOUND_DECODE, &fsinfo); fish_sound_set_decoded_callback(m_fishSound, acceptFrames, this); oggz_set_read_callback(m_oggz, -1, (OggzReadPacket)readPacket, this); if (decodeMode == DecodeAtOnce) { if (m_reporter) { connect(m_reporter, SIGNAL(cancelled()), this, SLOT(cancelled())); m_reporter->setMessage (tr("Decoding %1...").arg(QFileInfo(m_path).fileName())); } while (oggz_read(m_oggz, 1024) > 0); fish_sound_delete(m_fishSound); m_fishSound = 0; oggz_close(m_oggz); m_oggz = 0; if (isDecodeCacheInitialised()) finishDecodeCache(); endSerialised(); } else { if (m_reporter) m_reporter->setProgress(100); while (oggz_read(m_oggz, 1024) > 0 && (m_channelCount == 0 || m_fileRate == 0 || m_sampleRate == 0)); if (m_channelCount > 0) { m_decodeThread = new DecodeThread(this); m_decodeThread->start(); } } } OggVorbisFileReader::~OggVorbisFileReader() { // SVDEBUG << "OggVorbisFileReader::~OggVorbisFileReader(" << m_path << "): now have " << (--instances) << " instances" << endl; if (m_decodeThread) { m_cancelled = true; m_decodeThread->wait(); delete m_decodeThread; } } void OggVorbisFileReader::cancelled() { m_cancelled = true; } void OggVorbisFileReader::DecodeThread::run() { if (m_reader->m_cacheMode == CacheInTemporaryFile) { m_reader->m_completion = 1; m_reader->startSerialised("OggVorbisFileReader::Decode"); } while (oggz_read(m_reader->m_oggz, 1024) > 0); fish_sound_delete(m_reader->m_fishSound); m_reader->m_fishSound = 0; oggz_close(m_reader->m_oggz); m_reader->m_oggz = 0; if (m_reader->isDecodeCacheInitialised()) m_reader->finishDecodeCache(); m_reader->m_completion = 100; m_reader->endSerialised(); } int OggVorbisFileReader::readPacket(OGGZ *, ogg_packet *packet, long, void *data) { OggVorbisFileReader *reader = (OggVorbisFileReader *)data; FishSound *fs = reader->m_fishSound; fish_sound_prepare_truncation(fs, packet->granulepos, int(packet->e_o_s)); fish_sound_decode(fs, packet->packet, packet->bytes); reader->m_bytesRead += packet->bytes; // The number of bytes read by this function is smaller than // the file size because of the packet headers int p = int(lrint(double(reader->m_bytesRead) * 114 / double(reader->m_fileSize))); if (p > 99) p = 99; reader->m_completion = p; reader->progress(p); if (reader->m_fileSize > 0 && reader->m_reporter) { reader->m_reporter->setProgress(p); } if (reader->m_cancelled) return 1; return 0; } int OggVorbisFileReader::acceptFrames(FishSound *fs, float **frames, long nframes, void *data) { OggVorbisFileReader *reader = (OggVorbisFileReader *)data; if (!reader->m_commentsRead) { const FishSoundComment *comment; comment = fish_sound_comment_first_byname(fs, (char *)"TITLE"); if (comment && comment->value) { reader->m_title = QString::fromUtf8(comment->value); } comment = fish_sound_comment_first_byname(fs, (char *)"ARTIST"); if (comment && comment->value) { reader->m_maker = QString::fromUtf8(comment->value); } comment = fish_sound_comment_first(fs); while (comment) { reader->m_tags[QString::fromUtf8(comment->name).toUpper()] = QString::fromUtf8(comment->value); comment = fish_sound_comment_next(fs, comment); } reader->m_commentsRead = true; } if (reader->m_channelCount == 0) { FishSoundInfo fsinfo; fish_sound_command(fs, FISH_SOUND_GET_INFO, &fsinfo, sizeof(FishSoundInfo)); reader->m_fileRate = fsinfo.samplerate; reader->m_channelCount = fsinfo.channels; reader->initialiseDecodeCache(); } if (nframes > 0) { reader->addSamplesToDecodeCache(frames, nframes); } if (reader->m_cancelled) return 1; return 0; } void OggVorbisFileReader::getSupportedExtensions(std::set<QString> &extensions) { extensions.insert("ogg"); extensions.insert("oga"); } bool OggVorbisFileReader::supportsExtension(QString extension) { std::set<QString> extensions; getSupportedExtensions(extensions); return (extensions.find(extension.toLower()) != extensions.end()); } bool OggVorbisFileReader::supportsContentType(QString type) { return (type == "application/ogg"); } bool OggVorbisFileReader::supports(FileSource &source) { return (supportsExtension(source.getExtension()) || supportsContentType(source.getContentType())); } #endif #endif