2018-02-27 18:06:05 +01:00
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/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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2021-03-20 21:14:47 +01:00
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* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
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2018-02-27 18:06:05 +01:00
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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2018-08-09 18:10:03 +02:00
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*
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2018-02-27 18:06:05 +01:00
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*/
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#include "config.h"
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2020-06-14 23:54:18 +02:00
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#include <cstddef>
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2018-05-01 00:41:33 +02:00
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#include <glib.h>
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#include <glib/gtypes.h>
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#include <glib-object.h>
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#include <QtGlobal>
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#include <QObject>
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#include <QMutex>
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#include <QByteArray>
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#include <QString>
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#include <QUrl>
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#include <QtDebug>
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#include <cdio/cdio.h>
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2018-02-27 18:06:05 +01:00
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#include <gst/gst.h>
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#include <gst/tag/tag.h>
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#include "cddasongloader.h"
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#include "core/logging.h"
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#include "core/timeconstants.h"
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CddaSongLoader::CddaSongLoader(const QUrl &url, QObject *parent)
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2021-07-11 07:40:57 +02:00
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: QObject(parent),
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url_(url),
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cdda_(nullptr),
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cdio_(nullptr) {}
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2018-02-27 18:06:05 +01:00
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CddaSongLoader::~CddaSongLoader() {
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if (cdio_) cdio_destroy(cdio_);
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}
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QUrl CddaSongLoader::GetUrlFromTrack(int track_number) const {
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if (url_.isEmpty()) {
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2018-03-10 13:01:26 +01:00
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return QUrl(QString("cdda://%1a").arg(track_number));
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2018-02-27 18:06:05 +01:00
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}
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else {
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return QUrl(QString("cdda://%1/%2").arg(url_.path()).arg(track_number));
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}
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}
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void CddaSongLoader::LoadSongs() {
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QMutexLocker locker(&mutex_load_);
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cdio_ = cdio_open(url_.path().toLocal8Bit().constData(), DRIVER_DEVICE);
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if (cdio_ == nullptr) {
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2020-04-07 16:48:12 +02:00
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Error("Unable to open CDIO device.");
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2018-02-27 18:06:05 +01:00
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return;
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}
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2018-03-10 13:01:26 +01:00
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2018-02-27 18:06:05 +01:00
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// Create gstreamer cdda element
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GError *error = nullptr;
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cdda_ = gst_element_make_from_uri(GST_URI_SRC, "cdda://", nullptr, &error);
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if (error) {
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2020-04-07 16:48:12 +02:00
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Error(QString("%1: %2").arg(error->code).arg(error->message));
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2018-02-27 18:06:05 +01:00
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}
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2020-05-13 19:00:57 +02:00
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if (!cdda_) return;
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2018-02-27 18:06:05 +01:00
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if (!url_.isEmpty()) {
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g_object_set(cdda_, "device", g_strdup(url_.path().toLocal8Bit().constData()), nullptr);
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}
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2021-07-11 09:49:38 +02:00
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if (g_object_class_find_property(G_OBJECT_GET_CLASS(cdda_), "paranoia-mode")) {
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2020-04-07 16:48:12 +02:00
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g_object_set(cdda_, "paranoia-mode", 0, nullptr);
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2018-02-27 18:06:05 +01:00
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}
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// Change the element's state to ready and paused, to be able to query it
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2020-04-07 16:48:12 +02:00
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if (gst_element_set_state(cdda_, GST_STATE_READY) == GST_STATE_CHANGE_FAILURE) {
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2018-02-27 18:06:05 +01:00
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gst_element_set_state(cdda_, GST_STATE_NULL);
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gst_object_unref(GST_OBJECT(cdda_));
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2020-04-07 16:48:12 +02:00
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cdda_ = nullptr;
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Error(tr("Error while setting CDDA device to ready state."));
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return;
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}
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if (gst_element_set_state(cdda_, GST_STATE_PAUSED) == GST_STATE_CHANGE_FAILURE) {
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gst_element_set_state(cdda_, GST_STATE_NULL);
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gst_object_unref(GST_OBJECT(cdda_));
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cdda_ = nullptr;
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Error(tr("Error while setting CDDA device to pause state."));
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2018-02-27 18:06:05 +01:00
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return;
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}
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// Get number of tracks
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GstFormat fmt = gst_format_get_by_nick("track");
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GstFormat out_fmt = fmt;
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gint64 num_tracks = 0;
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2020-04-07 16:48:12 +02:00
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if (!gst_element_query_duration(cdda_, out_fmt, &num_tracks)) {
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gst_element_set_state(cdda_, GST_STATE_NULL);
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gst_object_unref(GST_OBJECT(cdda_));
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cdda_ = nullptr;
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Error(tr("Error while querying CDDA tracks."));
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return;
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}
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if (out_fmt != fmt) {
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qLog(Error) << "Error while querying cdda GstElement (2).";
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gst_element_set_state(cdda_, GST_STATE_NULL);
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2018-02-27 18:06:05 +01:00
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gst_object_unref(GST_OBJECT(cdda_));
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2020-04-07 16:48:12 +02:00
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cdda_ = nullptr;
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Error(tr("Error while querying CDDA tracks."));
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2018-02-27 18:06:05 +01:00
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return;
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}
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SongList songs;
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2021-06-20 19:04:08 +02:00
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songs.reserve(num_tracks);
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for (int track_number = 1; track_number <= num_tracks; ++track_number) {
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2018-02-27 18:06:05 +01:00
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// Init song
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2019-11-14 00:09:35 +01:00
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Song song(Song::Source_CDDA);
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2018-02-27 18:06:05 +01:00
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song.set_id(track_number);
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song.set_valid(true);
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2018-09-08 12:38:02 +02:00
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song.set_filetype(Song::FileType_CDDA);
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2018-02-27 18:06:05 +01:00
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song.set_url(GetUrlFromTrack(track_number));
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song.set_title(QString("Track %1").arg(track_number));
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song.set_track(track_number);
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songs << song;
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}
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emit SongsLoaded(songs);
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gst_tag_register_musicbrainz_tags();
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GstElement *pipeline = gst_pipeline_new("pipeline");
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2021-07-11 09:49:38 +02:00
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GstElement *sink = gst_element_factory_make("fakesink", nullptr);
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gst_bin_add_many(GST_BIN(pipeline), cdda_, sink, nullptr);
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gst_element_link(cdda_, sink);
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2018-02-27 18:06:05 +01:00
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gst_element_set_state(pipeline, GST_STATE_READY);
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gst_element_set_state(pipeline, GST_STATE_PAUSED);
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// Get TOC and TAG messages
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GstMessage *msg = nullptr;
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GstMessage *msg_toc = nullptr;
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GstMessage *msg_tag = nullptr;
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2020-06-15 17:59:02 +02:00
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while ((msg = gst_bus_timed_pop_filtered(GST_ELEMENT_BUS(pipeline), GST_SECOND, static_cast<GstMessageType>(GST_MESSAGE_TOC | GST_MESSAGE_TAG)))) {
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2018-02-27 18:06:05 +01:00
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if (GST_MESSAGE_TYPE(msg) == GST_MESSAGE_TOC) {
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if (msg_toc) gst_message_unref(msg_toc); // Shouldn't happen, but just in case
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msg_toc = msg;
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2018-03-05 21:05:30 +01:00
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}
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else if (GST_MESSAGE_TYPE(msg) == GST_MESSAGE_TAG) {
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2018-02-27 18:06:05 +01:00
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if (msg_tag) gst_message_unref(msg_tag);
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msg_tag = msg;
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}
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}
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// Handle TOC message: get tracks duration
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if (msg_toc) {
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2021-03-26 21:30:13 +01:00
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GstToc *toc = nullptr;
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2021-07-11 09:49:38 +02:00
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gst_message_parse_toc(msg_toc, &toc, nullptr);
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2018-02-27 18:06:05 +01:00
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if (toc) {
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GList *entries = gst_toc_get_entries(toc);
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2020-06-15 17:59:02 +02:00
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if (entries && static_cast<guint>(songs.size()) <= g_list_length(entries)) {
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2018-02-27 18:06:05 +01:00
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int i = 0;
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for (GList *node = entries; node != nullptr; node = node->next) {
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GstTocEntry *entry = static_cast<GstTocEntry*>(node->data);
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quint64 duration = 0;
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2021-03-26 21:30:13 +01:00
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gint64 start = 0, stop = 0;
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2021-07-11 09:49:38 +02:00
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if (gst_toc_entry_get_start_stop_times(entry, &start, &stop)) duration = stop - start;
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2018-02-27 18:06:05 +01:00
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songs[i++].set_length_nanosec(duration);
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}
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}
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}
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gst_message_unref(msg_toc);
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}
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emit SongsDurationLoaded(songs);
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2021-05-10 21:17:50 +02:00
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#ifdef HAVE_MUSICBRAINZ
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2018-02-27 18:06:05 +01:00
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// Handle TAG message: generate MusicBrainz DiscId
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if (msg_tag) {
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GstTagList *tags = nullptr;
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gst_message_parse_tag(msg_tag, &tags);
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char *string_mb = nullptr;
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if (gst_tag_list_get_string(tags, GST_TAG_CDDA_MUSICBRAINZ_DISCID, &string_mb)) {
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QString musicbrainz_discid(string_mb);
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qLog(Info) << "MusicBrainz discid: " << musicbrainz_discid;
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MusicBrainzClient *musicbrainz_client = new MusicBrainzClient;
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2021-01-26 16:48:04 +01:00
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QObject::connect(musicbrainz_client, &MusicBrainzClient::DiscIdFinished, this, &CddaSongLoader::AudioCDTagsLoaded);
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2018-02-27 18:06:05 +01:00
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musicbrainz_client->StartDiscIdRequest(musicbrainz_discid);
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g_free(string_mb);
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gst_message_unref(msg_tag);
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2020-10-17 04:54:46 +02:00
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gst_tag_list_unref(tags);
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2018-02-27 18:06:05 +01:00
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}
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}
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2018-07-16 07:23:37 +02:00
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#endif
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2018-02-27 18:06:05 +01:00
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gst_element_set_state(pipeline, GST_STATE_NULL);
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// This will also cause cdda_ to be unref'd.
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gst_object_unref(pipeline);
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}
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2021-05-10 21:17:50 +02:00
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#ifdef HAVE_MUSICBRAINZ
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2018-02-27 18:06:05 +01:00
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void CddaSongLoader::AudioCDTagsLoaded(const QString &artist, const QString &album, const MusicBrainzClient::ResultList &results) {
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MusicBrainzClient *musicbrainz_client = qobject_cast<MusicBrainzClient*>(sender());
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musicbrainz_client->deleteLater();
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2019-04-08 18:46:11 +02:00
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if (results.empty()) return;
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2021-06-20 19:04:08 +02:00
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SongList songs;
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songs.reserve(results.count());
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2018-02-27 18:06:05 +01:00
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int track_number = 1;
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for (const MusicBrainzClient::Result &ret : results) {
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2019-11-14 00:09:35 +01:00
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Song song(Song::Source_CDDA);
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2018-02-27 18:06:05 +01:00
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song.set_artist(artist);
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song.set_album(album);
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song.set_title(ret.title_);
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song.set_length_nanosec(ret.duration_msec_ * kNsecPerMsec);
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song.set_track(track_number);
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song.set_year(ret.year_);
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song.set_id(track_number);
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2018-09-08 12:38:02 +02:00
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song.set_filetype(Song::FileType_CDDA);
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2018-02-27 18:06:05 +01:00
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song.set_valid(true);
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2018-03-10 13:01:26 +01:00
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// We need to set url: that's how playlist will find the correct item to update
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2018-02-27 18:06:05 +01:00
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song.set_url(GetUrlFromTrack(track_number++));
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songs << song;
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}
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emit SongsMetadataLoaded(songs);
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}
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2018-07-16 07:23:37 +02:00
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#endif
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2018-02-27 18:06:05 +01:00
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bool CddaSongLoader::HasChanged() {
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2020-05-13 19:00:57 +02:00
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if (cdio_ && cdio_get_media_changed(cdio_) != 1) {
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2018-02-27 18:06:05 +01:00
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return false;
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}
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// Check if mutex is already token (i.e. init is already taking place)
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if (!mutex_load_.tryLock()) {
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return false;
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}
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mutex_load_.unlock();
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2020-05-13 19:00:57 +02:00
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2018-02-27 18:06:05 +01:00
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return true;
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}
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2020-04-07 16:48:12 +02:00
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void CddaSongLoader::Error(const QString &error) {
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qLog(Error) << error;
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emit SongsDurationLoaded(SongList(), error);
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}
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