Mercurial > hg > svcore
view data/fileio/OggVorbisFileReader.cpp @ 1008:d9e0e59a1581
When using an aggregate model to pass data to a transform, zero-pad the shorter input to the duration of the longer rather than truncating the longer. (This is better behaviour for e.g. MATCH, and in any case the code was previously truncating incorrectly and ending up with garbage data at the end.)
author | Chris Cannam |
---|---|
date | Fri, 14 Nov 2014 13:51:33 +0000 |
parents | d03b3d956358 |
children | 1ecd533a9977 |
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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, int 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, 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 = 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, "TITLE"); if (comment && comment->value) { reader->m_title = QString::fromUtf8(comment->value); } comment = fish_sound_comment_first_byname(fs, "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