101 lines
1.9 KiB
C++
101 lines
1.9 KiB
C++
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/*
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* Copyright 2013 (c) Anna Schumaker.
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*/
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#include <audio.h>
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#include <deck.h>
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#include <library.h>
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#include <string.h>
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static GstElement *ocarina_player;
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static bool track_loaded = false;
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static gboolean on_message(GstBus *bus, GstMessage *message, gpointer data)
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{
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return TRUE;
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}
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static bool change_state(GstState state)
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{
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GstStateChangeReturn ret;
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ret = gst_element_set_state(GST_ELEMENT(ocarina_player), state);
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switch (ret) {
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case GST_STATE_CHANGE_SUCCESS:
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case GST_STATE_CHANGE_ASYNC:
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return true;
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default:
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return false;
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}
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}
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static bool load_song(library :: Song &song)
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{
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GstState state;
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gchar *escaped;
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std::string filepath = song.library->root_path + "/" + song.track->filepath;
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gst_element_get_state(GST_ELEMENT(ocarina_player), &state,
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NULL, GST_CLOCK_TIME_NONE);
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escaped = gst_filename_to_uri(filepath.c_str(), NULL);
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g_object_set(G_OBJECT(ocarina_player), "uri", escaped, NULL);
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g_free(escaped);
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return change_state(state);
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}
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void audio :: init(int *argc, char ***argv)
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{
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GstBus *bus;
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gst_init(argc, argv);
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ocarina_player = gst_element_factory_make("playbin", "ocarina_player");
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bus = gst_pipeline_get_bus(GST_PIPELINE(ocarina_player));
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gst_bus_add_watch(bus, on_message, NULL);
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}
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bool audio :: play()
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{
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if (track_loaded == false)
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return false;
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return change_state(GST_STATE_PLAYING);
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}
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bool audio :: pause()
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{
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if (track_loaded == false)
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return false;
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return change_state(GST_STATE_PAUSED);
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}
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bool audio :: seek_to(double pos)
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{
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if (track_loaded == false)
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return false;
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return gst_element_seek_simple(GST_ELEMENT(ocarina_player),
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GST_FORMAT_TIME,
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GST_SEEK_FLAG_FLUSH,
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pos);
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return true;
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}
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bool audio :: next()
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{
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unsigned int id;
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library :: Song song;
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try {
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id = deck :: next();
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if (library :: lookup(id, &song) == false)
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track_loaded = false;
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else
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track_loaded = load_song(song);
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} catch (int) {
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track_loaded = false;
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}
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return track_loaded;
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}
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