Media: Document and reformat media. (3cd8a3fa) · Commits · Canek Peláez / Music Library Maintainer · GitLab

src/application/encoder.vala

+35 −7

Original line number	Original line	Diff line number	Diff line
	@@ -22,11 +22,21 @@

	namespace MLM {		namespace MLM {

			/**
			* Class for encoders.
			*/
	public class Encoder : Media {		public class Encoder : Media {

			/* The source filename. */
	private string source;		private string source;
			/* The target filename. */
	private string target;		private string target;

			/**
			* Initializes the encoder.
			* @param source the source filename.
			* @param target the target filename.
			*/
	public Encoder(string source, string target) {		public Encoder(string source, string target) {
	base();		base();
	this.source = source;		this.source = source;
	@@ -38,22 +48,34 @@ namespace MLM {
	sink.set_property("location", target);		sink.set_property("location", target);
	}		}

			/**
			* Sets the pipeline.
			*/
	protected override void set_pipeline() {		protected override void set_pipeline() {
	try {		try {
	pipe = (Gst.Pipeline)		pipe = (Gst.Pipeline)
	Gst.parse_launch(		Gst.parse_launch(
	"filesrc name=src ! " +		"filesrc " +
			" name=src ! " +
	"decodebin ! " +		"decodebin ! " +
	"audioconvert ! " +		"audioconvert ! " +
	"rglimiter ! " +		"rglimiter ! " +
	"audioconvert ! " +		"audioconvert ! " +
	"lamemp3enc target=1 bitrate=128 cbr=true ! " +		"lamemp3enc " +
	"filesink name=sink");		" target=1 " +
			" bitrate=128 " +
			" cbr=true ! " +
			"filesink " +
			" name=sink");
	} catch (GLib.Error e) {		} catch (GLib.Error e) {
	stderr.printf("%s\n", e.message);		stderr.printf("%s\n", e.message);
	}		}
	}		}

			/**
			* Handles the message received.
			* @param message the message.
			*/
	protected override void message_received(Gst.Message message) {		protected override void message_received(Gst.Message message) {
	switch (message.type) {		switch (message.type) {
	case Gst.MessageType.EOS:		case Gst.MessageType.EOS:
	@@ -75,11 +97,17 @@ namespace MLM {
	}		}
	}		}

			/**
			* Encodes the source.
			*/
	public void encode() {		public void encode() {
	pipe.set_state(Gst.State.PLAYING);		pipe.set_state(Gst.State.PLAYING);
	working = true;		working = true;
	}		}

			/**
			* Cancel the encoding.
			*/
	public void cancel() {		public void cancel() {
	pipe.set_state(Gst.State.NULL);		pipe.set_state(Gst.State.NULL);
	}		}

src/application/media.vala

+26 −1

Original line number	Original line	Diff line number	Diff line
	@@ -22,23 +22,48 @@

	namespace MLM {		namespace MLM {

			/**
			* Abstract class for media.
			*/
	public abstract class Media : GLib.Object {		public abstract class Media : GLib.Object {

			/**
			* The pipeline.
			*/
	protected Gst.Pipeline pipe;		protected Gst.Pipeline pipe;

			/**
			* Whether the media is working.
			*/
	public bool working { get; protected set; }		public bool working { get; protected set; }

			/**
			* Initializes the media.
			*/
	public Media() {		public Media() {
	set_pipeline();		set_pipeline();

	var bus = pipe.get_bus();		var bus = pipe.get_bus();
	bus.add_signal_watch();		bus.add_signal_watch();
	bus.message.connect(message_received);		bus.message.connect(message_received);
	}		}

			/**
			* Sets the pipeline.
			*/
	protected abstract void set_pipeline();		protected abstract void set_pipeline();

			/**
			* Handles the message received.
			* @param message the message.
			*/
	protected abstract void message_received(Gst.Message message);		protected abstract void message_received(Gst.Message message);

			/**
			* Returns the completion percentage of the media.
			* @param duration the duration of the media.
			* @param duration the position of the media.
			* @return the completion percentage of the media.
			*/
	public double get_completion(out int64 duration = null,		public double get_completion(out int64 duration = null,
	out int64 position = null) {		out int64 position = null) {
	duration = -1;		duration = -1;

src/application/player.vala

+43 −0

Original line number	Original line	Diff line number	Diff line
	@@ -22,13 +22,32 @@

	namespace MLM {		namespace MLM {

			/**
			* Class for players.
			*/
	public class Player : Media {		public class Player : Media {

			/**
			* The “state-changed” signal.
			*
			* The ''::state-changed'' signal will be emitted when the state of the
			* player changes.
			* @param state the new state.
			*/
	public signal void state_changed(Gst.State state);		public signal void state_changed(Gst.State state);

			/**
			* The state.
			*/
	public Gst.State state { get { return obtain_state(); } }		public Gst.State state { get { return obtain_state(); } }

			/* The last state. */
	private Gst.State last_state;		private Gst.State last_state;

			/**
			* Initializes the player.
			* @param filename the filename.
			*/
	public Player(string filename) {		public Player(string filename) {
	base();		base();
	var src = pipe.get_by_name("src");		var src = pipe.get_by_name("src");
	@@ -37,6 +56,9 @@ namespace MLM {
	last_state = Gst.State.PAUSED;		last_state = Gst.State.PAUSED;
	}		}

			/**
			* Sets the pipeline.
			*/
	protected override void set_pipeline() {		protected override void set_pipeline() {
	try {		try {
	pipe = (Gst.Pipeline)		pipe = (Gst.Pipeline)
	@@ -49,6 +71,10 @@ namespace MLM {
	}		}
	}		}

			/**
			* Handles the message received.
			* @param message the message.
			*/
	protected override void message_received(Gst.Message message) {		protected override void message_received(Gst.Message message) {
	switch (message.type) {		switch (message.type) {
	case Gst.MessageType.EOS:		case Gst.MessageType.EOS:
	@@ -78,18 +104,31 @@ namespace MLM {
	}		}
	}		}

			/**
			* Plays the player.
			*/
	public void play() {		public void play() {
	pipe.set_state(Gst.State.PLAYING);		pipe.set_state(Gst.State.PLAYING);
	}		}

			/**
			* Pauses the player.
			*/
	public void pause() {		public void pause() {
	pipe.set_state(Gst.State.PAUSED);		pipe.set_state(Gst.State.PAUSED);
	}		}

			/**
			* Finishes the player.
			*/
	public void finish() {		public void finish() {
	pipe.set_state(Gst.State.READY);		pipe.set_state(Gst.State.READY);
	}		}

			/**
			* Seeks a position in the player.
			* @para percentage the percentage position.
			*/
	public bool seek(double percentage) {		public bool seek(double percentage) {
	int64 duration = -1;		int64 duration = -1;
	if (!pipe.query_duration(Gst.Format.TIME, out duration))		if (!pipe.query_duration(Gst.Format.TIME, out duration))
	@@ -103,6 +142,10 @@ namespace MLM {
	return true;		return true;
	}		}

			/**
			* Returns the current state.
			* @return the current state.
			*/
	private Gst.State obtain_state() {		private Gst.State obtain_state() {
	var new_state = Gst.State.NULL;		var new_state = Gst.State.NULL;
	var pending = Gst.State.NULL;		var pending = Gst.State.NULL;