static void print_toc_entry (gpointer data, gpointer user_data) { GstTocEntry *entry = (GstTocEntry *) data; guint depth = GPOINTER_TO_UINT (user_data); guint indent = MIN (GPOINTER_TO_UINT (user_data), MAX_INDENT); GstTagList *tags; GList *subentries; gint64 start, stop; gst_toc_entry_get_start_stop_times (entry, &start, &stop); g_print ("%*s%s: start: %" GST_TIME_FORMAT " stop: %" GST_TIME_FORMAT "\n", depth, " ", gst_toc_entry_type_get_nick (gst_toc_entry_get_entry_type (entry)), GST_TIME_ARGS (start), GST_TIME_ARGS (stop)); indent += 2; /* print tags */ tags = gst_toc_entry_get_tags (entry); if (tags) { g_print ("%*sTags:\n", 2 * depth, " "); gst_tag_list_foreach (tags, print_tag_foreach, GUINT_TO_POINTER (indent)); } /* loop over sub-toc entries */ subentries = gst_toc_entry_get_sub_entries (entry); g_list_foreach (subentries, print_toc_entry, GUINT_TO_POINTER (indent)); }
static gboolean gst_wavenc_parse_cue (GstWavEnc * wavenc, guint32 id, GstTocEntry * entry) { gint64 start; GstWavEncCue *cue; g_return_val_if_fail (entry != NULL, FALSE); gst_toc_entry_get_start_stop_times (entry, &start, NULL); cue = g_new (GstWavEncCue, 1); cue->id = id; cue->position = gst_util_uint64_scale_round (start, wavenc->rate, GST_SECOND); memcpy (cue->data_chunk_id, "data", 4); cue->chunk_start = 0; cue->block_start = 0; cue->sample_offset = cue->position; wavenc->cues = g_list_append (wavenc->cues, cue); return TRUE; }
void CddaSongLoader::LoadSongsFromCdda() { QMutexLocker locker(&mutex_load_); cdio_ = cdio_open(url_.path().toLocal8Bit().constData(), DRIVER_DEVICE); if (cdio_ == nullptr) { return; } // Create gstreamer cdda element GError* error = nullptr; cdda_ = gst_element_make_from_uri(GST_URI_SRC, "cdda://", nullptr, &error); if (error) { qLog(Error) << error->code << QString::fromLocal8Bit(error->message); } if (cdda_ == nullptr) { return; } if (!url_.isEmpty()) { g_object_set(cdda_, "device", g_strdup(url_.path().toLocal8Bit().constData()), nullptr); } if (g_object_class_find_property (G_OBJECT_GET_CLASS (cdda_), "paranoia-mode")) { g_object_set (cdda_, "paranoia-mode", 0, NULL); } // Change the element's state to ready and paused, to be able to query it if (gst_element_set_state(cdda_, GST_STATE_READY) == GST_STATE_CHANGE_FAILURE || gst_element_set_state(cdda_, GST_STATE_PAUSED) == GST_STATE_CHANGE_FAILURE) { gst_element_set_state(cdda_, GST_STATE_NULL); gst_object_unref(GST_OBJECT(cdda_)); return; } // Get number of tracks GstFormat fmt = gst_format_get_by_nick("track"); GstFormat out_fmt = fmt; gint64 num_tracks = 0; if (!gst_element_query_duration(cdda_, out_fmt, &num_tracks) || out_fmt != fmt) { qLog(Error) << "Error while querying cdda GstElement"; gst_object_unref(GST_OBJECT(cdda_)); return; } SongList songs; for (int track_number = 1; track_number <= num_tracks; track_number++) { // Init song Song song; song.set_id(track_number); song.set_valid(true); song.set_filetype(Song::Type_Cdda); song.set_url( GetUrlFromTrack(track_number)); song.set_title(QString("Track %1").arg(track_number)); song.set_track(track_number); songs << song; } emit SongsLoaded(songs); gst_tag_register_musicbrainz_tags(); GstElement* pipeline = gst_pipeline_new("pipeline"); GstElement* sink = gst_element_factory_make ("fakesink", NULL); gst_bin_add_many (GST_BIN (pipeline), cdda_, sink, NULL); gst_element_link (cdda_, sink); gst_element_set_state(pipeline, GST_STATE_READY); gst_element_set_state(pipeline, GST_STATE_PAUSED); // Get TOC and TAG messages GstMessage* msg = nullptr; GstMessage* msg_toc = nullptr; GstMessage* msg_tag = nullptr; while ((msg = gst_bus_timed_pop_filtered( GST_ELEMENT_BUS(pipeline), 2 * GST_SECOND, (GstMessageType)(GST_MESSAGE_TOC | GST_MESSAGE_TAG)))) { if (GST_MESSAGE_TYPE(msg) == GST_MESSAGE_TOC) { if (msg_toc) gst_message_unref(msg_toc); // Shouldn't happen, but just in case msg_toc = msg; } else if (GST_MESSAGE_TYPE(msg) == GST_MESSAGE_TAG) { if (msg_tag) gst_message_unref(msg_tag); msg_tag = msg; } } // Handle TOC message: get tracks duration if (msg_toc) { GstToc* toc; gst_message_parse_toc (msg_toc, &toc, nullptr); if (toc) { GList* entries = gst_toc_get_entries(toc); if (entries && songs.size() <= g_list_length (entries)) { int i = 0; for (GList* node = entries; node != nullptr; node = node->next) { GstTocEntry *entry = static_cast<GstTocEntry*>(node->data); quint64 duration = 0; gint64 start, stop; if (gst_toc_entry_get_start_stop_times (entry, &start, &stop)) duration = stop - start; songs[i++].set_length_nanosec(duration); } } } gst_message_unref(msg_toc); } emit SongsDurationLoaded(songs); // Handle TAG message: generate MusicBrainz DiscId if (msg_tag) { GstTagList* tags = nullptr; gst_message_parse_tag(msg_tag, &tags); char* string_mb = nullptr; if (gst_tag_list_get_string(tags, GST_TAG_CDDA_MUSICBRAINZ_DISCID, &string_mb)) { QString musicbrainz_discid(string_mb); qLog(Info) << "MusicBrainz discid: " << musicbrainz_discid; emit MusicBrainzDiscIdLoaded(musicbrainz_discid); g_free(string_mb); gst_message_unref(msg_tag); gst_tag_list_free(tags); } } gst_element_set_state(pipeline, GST_STATE_NULL); // This will also cause cdda_ to be unref'd. gst_object_unref(pipeline); }