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authorMarvin W <git@larma.de>2021-03-21 12:41:38 +0100
committerMarvin W <git@larma.de>2021-03-21 12:41:38 +0100
commitef2e3c774cab82a94a5e34399f2013d64c3cf03b (patch)
treedee0b7184eb2e225593508d74b25a8228e35144f /plugins/rtp/src
parente6a933ad307116952d3202c36d0a8d6e7f4b0946 (diff)
downloaddino-ef2e3c774cab82a94a5e34399f2013d64c3cf03b.tar.gz
dino-ef2e3c774cab82a94a5e34399f2013d64c3cf03b.zip
Add RTP implementation as plugin
Diffstat (limited to 'plugins/rtp/src')
-rw-r--r--plugins/rtp/src/codec_util.vala245
-rw-r--r--plugins/rtp/src/device.vala206
-rw-r--r--plugins/rtp/src/module.vala264
-rw-r--r--plugins/rtp/src/participant.vala39
-rw-r--r--plugins/rtp/src/plugin.vala413
-rw-r--r--plugins/rtp/src/register_plugin.vala3
-rw-r--r--plugins/rtp/src/stream.vala432
-rw-r--r--plugins/rtp/src/video_widget.vala110
8 files changed, 1712 insertions, 0 deletions
diff --git a/plugins/rtp/src/codec_util.vala b/plugins/rtp/src/codec_util.vala
new file mode 100644
index 00000000..e419b5ad
--- /dev/null
+++ b/plugins/rtp/src/codec_util.vala
@@ -0,0 +1,245 @@
+using Gee;
+using Xmpp;
+using Xmpp.Xep;
+
+public class Dino.Plugins.Rtp.CodecUtil {
+ private Set<string> supported_elements = new HashSet<string>();
+ private Set<string> unsupported_elements = new HashSet<string>();
+
+ public static Gst.Caps get_caps(string media, JingleRtp.PayloadType payload_type) {
+ Gst.Caps caps = new Gst.Caps.simple("application/x-rtp",
+ "media", typeof(string), media,
+ "payload", typeof(int), payload_type.id);
+ //"channels", typeof(int), payloadType.channels,
+ //"max-ptime", typeof(int), payloadType.maxptime);
+ unowned Gst.Structure s = caps.get_structure(0);
+ if (payload_type.clockrate != 0) {
+ s.set("clock-rate", typeof(int), payload_type.clockrate);
+ }
+ if (payload_type.name != null) {
+ s.set("encoding-name", typeof(string), payload_type.name.up());
+ }
+ return caps;
+ }
+
+ public static string? get_codec_from_payload(string media, JingleRtp.PayloadType payload_type) {
+ if (payload_type.name != null) return payload_type.name.down();
+ if (media == "audio") {
+ switch (payload_type.id) {
+ case 0:
+ return "pcmu";
+ case 8:
+ return "pcma";
+ }
+ }
+ return null;
+ }
+
+ public static string? get_media_type_from_payload(string media, JingleRtp.PayloadType payload_type) {
+ return get_media_type(media, get_codec_from_payload(media, payload_type));
+ }
+
+ public static string? get_media_type(string media, string? codec) {
+ if (codec == null) return null;
+ if (media == "audio") {
+ switch (codec) {
+ case "pcma":
+ return "audio/x-alaw";
+ case "pcmu":
+ return "audio/x-mulaw";
+ }
+ }
+ return @"$media/x-$codec";
+ }
+
+ public static string? get_rtp_pay_element_name_from_payload(string media, JingleRtp.PayloadType payload_type) {
+ return get_pay_candidate(media, get_codec_from_payload(media, payload_type));
+ }
+
+ public static string? get_pay_candidate(string media, string? codec) {
+ if (codec == null) return null;
+ return @"rtp$(codec)pay";
+ }
+
+ public static string? get_rtp_depay_element_name_from_payload(string media, JingleRtp.PayloadType payload_type) {
+ return get_depay_candidate(media, get_codec_from_payload(media, payload_type));
+ }
+
+ public static string? get_depay_candidate(string media, string? codec) {
+ if (codec == null) return null;
+ return @"rtp$(codec)depay";
+ }
+
+ public static string[] get_encode_candidates(string media, string? codec) {
+ if (codec == null) return new string[0];
+ if (media == "audio") {
+ switch (codec) {
+ case "opus":
+ return new string[] {"opusenc"};
+ case "speex":
+ return new string[] {"speexenc"};
+ case "pcma":
+ return new string[] {"alawenc"};
+ case "pcmu":
+ return new string[] {"mulawenc"};
+ }
+ } else if (media == "video") {
+ switch (codec) {
+ case "h264":
+ return new string[] {/*"msdkh264enc", */"vaapih264enc", "x264enc"};
+ case "vp9":
+ return new string[] {/*"msdkvp9enc", */"vaapivp9enc" /*, "vp9enc" */};
+ case "vp8":
+ return new string[] {/*"msdkvp8enc", */"vaapivp8enc", "vp8enc"};
+ }
+ }
+ return new string[0];
+ }
+
+ public static string[] get_decode_candidates(string media, string? codec) {
+ if (codec == null) return new string[0];
+ if (media == "audio") {
+ switch (codec) {
+ case "opus":
+ return new string[] {"opusdec"};
+ case "speex":
+ return new string[] {"speexdec"};
+ case "pcma":
+ return new string[] {"alawdec"};
+ case "pcmu":
+ return new string[] {"mulawdec"};
+ }
+ } else if (media == "video") {
+ switch (codec) {
+ case "h264":
+ return new string[] {/*"msdkh264dec", */"vaapih264dec"};
+ case "vp9":
+ return new string[] {/*"msdkvp9dec", */"vaapivp9dec", "vp9dec"};
+ case "vp8":
+ return new string[] {/*"msdkvp8dec", */"vaapivp8dec", "vp8dec"};
+ }
+ }
+ return new string[0];
+ }
+
+ public static string? get_encode_prefix(string media, string codec, string encode) {
+ if (encode == "msdkh264enc") return "video/x-raw,format=NV12 ! ";
+ if (encode == "vaapih264enc") return "video/x-raw,format=NV12 ! ";
+ return null;
+ }
+
+ public static string? get_encode_suffix(string media, string codec, string encode) {
+ // H264
+ const string h264_suffix = " ! video/x-h264,profile=constrained-baseline ! h264parse";
+ if (encode == "msdkh264enc") return @" bitrate=256 rate-control=vbr target-usage=7$h264_suffix";
+ if (encode == "vaapih264enc") return @" bitrate=256 quality-level=7 tune=low-power$h264_suffix";
+ if (encode == "x264enc") return @" byte-stream=1 bitrate=256 profile=baseline speed-preset=ultrafast tune=zerolatency$h264_suffix";
+ if (media == "video" && codec == "h264") return h264_suffix;
+
+ // VP8
+ if (encode == "msdkvp8enc") return " bitrate=256 rate-control=vbr target-usage=7";
+ if (encode == "vaapivp8enc") return " bitrate=256 rate-control=vbr quality-level=7";
+ if (encode == "vp8enc") return " target-bitrate=256000 deadline=1 error-resilient=1";
+
+ // OPUS
+ if (encode == "opusenc") return " audio-type=voice";
+
+ return null;
+ }
+
+ public static string? get_decode_prefix(string media, string codec, string decode) {
+ return null;
+ }
+
+ public bool is_element_supported(string element_name) {
+ if (unsupported_elements.contains(element_name)) return false;
+ if (supported_elements.contains(element_name)) return true;
+ var test_element = Gst.ElementFactory.make(element_name, @"test-$element_name");
+ if (test_element != null) {
+ supported_elements.add(element_name);
+ return true;
+ } else {
+ debug("%s is not supported on this platform", element_name);
+ unsupported_elements.add(element_name);
+ return false;
+ }
+ }
+
+ public string? get_encode_element_name(string media, string? codec) {
+ foreach (string candidate in get_encode_candidates(media, codec)) {
+ if (is_element_supported(candidate)) return candidate;
+ }
+ return null;
+ }
+
+ public string? get_pay_element_name(string media, string? codec) {
+ string candidate = get_pay_candidate(media, codec);
+ if (is_element_supported(candidate)) return candidate;
+ return null;
+ }
+
+ public string? get_decode_element_name(string media, string? codec) {
+ foreach (string candidate in get_decode_candidates(media, codec)) {
+ if (is_element_supported(candidate)) return candidate;
+ }
+ return null;
+ }
+
+ public string? get_depay_element_name(string media, string? codec) {
+ string candidate = get_depay_candidate(media, codec);
+ if (is_element_supported(candidate)) return candidate;
+ return null;
+ }
+
+ public void mark_element_unsupported(string element_name) {
+ unsupported_elements.add(element_name);
+ }
+
+ public string? get_decode_bin_description(string media, string? codec, string? element_name = null, string? name = null) {
+ if (codec == null) return null;
+ string base_name = name ?? @"encode-$codec-$(Random.next_int())";
+ string depay = get_depay_element_name(media, codec);
+ string decode = element_name ?? get_decode_element_name(media, codec);
+ if (depay == null || decode == null) return null;
+ string decode_prefix = get_decode_prefix(media, codec, decode) ?? "";
+ return @"$depay name=$base_name-rtp-depay ! $decode_prefix$decode name=$base_name-decode ! $(media)convert name=$base_name-convert";
+ }
+
+ public Gst.Element? get_decode_bin(string media, JingleRtp.PayloadType payload_type, string? name = null) {
+ string? codec = get_codec_from_payload(media, payload_type);
+ string base_name = name ?? @"encode-$codec-$(Random.next_int())";
+ string? desc = get_decode_bin_description(media, codec, null, base_name);
+ if (desc == null) return null;
+ debug("Pipeline to decode %s %s: %s", media, codec, desc);
+ Gst.Element bin = Gst.parse_bin_from_description(desc, true);
+ bin.name = name;
+ return bin;
+ }
+
+ public string? get_encode_bin_description(string media, string? codec, string? element_name = null, uint pt = 96, string? name = null) {
+ if (codec == null) return null;
+ string base_name = name ?? @"encode-$codec-$(Random.next_int())";
+ string pay = get_pay_element_name(media, codec);
+ string encode = element_name ?? get_encode_element_name(media, codec);
+ if (pay == null || encode == null) return null;
+ string encode_prefix = get_encode_prefix(media, codec, encode) ?? "";
+ string encode_suffix = get_encode_suffix(media, codec, encode) ?? "";
+ if (media == "audio") {
+ return @"audioconvert name=$base_name-convert ! audioresample name=$base_name-resample ! $encode_prefix$encode$encode_suffix ! $pay pt=$pt name=$base_name-rtp-pay";
+ } else {
+ return @"$(media)convert name=$base_name-convert ! $encode_prefix$encode$encode_suffix ! $pay pt=$pt name=$base_name-rtp-pay";
+ }
+ }
+
+ public Gst.Element? get_encode_bin(string media, JingleRtp.PayloadType payload_type, string? name = null) {
+ string? codec = get_codec_from_payload(media, payload_type);
+ string base_name = name ?? @"encode-$codec-$(Random.next_int())";
+ string? desc = get_encode_bin_description(media, codec, null, payload_type.id, base_name);
+ if (desc == null) return null;
+ debug("Pipeline to encode %s %s: %s", media, codec, desc);
+ Gst.Element bin = Gst.parse_bin_from_description(desc, true);
+ bin.name = name;
+ return bin;
+ }
+
+} \ No newline at end of file
diff --git a/plugins/rtp/src/device.vala b/plugins/rtp/src/device.vala
new file mode 100644
index 00000000..796be203
--- /dev/null
+++ b/plugins/rtp/src/device.vala
@@ -0,0 +1,206 @@
+public class Dino.Plugins.Rtp.Device : MediaDevice, Object {
+ public Plugin plugin { get; private set; }
+ public Gst.Device device { get; private set; }
+
+ private string device_name;
+ public string id { get {
+ return device_name;
+ }}
+ private string device_display_name;
+ public string display_name { get {
+ return device_display_name;
+ }}
+ public string detail_name { get {
+ return device.properties.get_string("alsa.card_name") ?? device.properties.get_string("alsa.id") ?? id;
+ }}
+ public Gst.Pipeline pipe { get {
+ return plugin.pipe;
+ }}
+ public string? media { get {
+ if (device.device_class.has_prefix("Audio/")) {
+ return "audio";
+ } else if (device.device_class.has_prefix("Video/")) {
+ return "video";
+ } else {
+ return null;
+ }
+ }}
+ public bool is_source { get {
+ return device.device_class.has_suffix("/Source");
+ }}
+ public bool is_sink { get {
+ return device.device_class.has_suffix("/Sink");
+ }}
+
+ private Gst.Element element;
+ private Gst.Element tee;
+ private Gst.Element dsp;
+ private Gst.Element mixer;
+ private Gst.Element filter;
+ private int links = 0;
+
+ public Device(Plugin plugin, Gst.Device device) {
+ this.plugin = plugin;
+ update(device);
+ }
+
+ public bool matches(Gst.Device device) {
+ if (this.device.name == device.name) return true;
+ return false;
+ }
+
+ public void update(Gst.Device device) {
+ this.device = device;
+ this.device_name = device.name;
+ this.device_display_name = device.display_name;
+ }
+
+ public Gst.Element? link_sink() {
+ if (element == null) create();
+ links++;
+ if (mixer != null) return mixer;
+ if (is_sink && media == "audio") return plugin.echoprobe;
+ return element;
+ }
+
+ public Gst.Element? link_source() {
+ if (element == null) create();
+ links++;
+ if (tee != null) return tee;
+ return element;
+ }
+
+ public void unlink() {
+ if (links <= 0) {
+ critical("Link count below zero.");
+ return;
+ }
+ links--;
+ if (links == 0) {
+ destroy();
+ }
+ }
+
+ private Gst.Caps get_best_caps() {
+ if (media == "audio") {
+ return Gst.Caps.from_string("audio/x-raw,rate=48000,channels=1");
+ } else if (media == "video" && device.caps.get_size() > 0) {
+ int best_index = 0;
+ int best_fps = 0;
+ int best_width = 0;
+ int best_height = 0;
+ for (int i = 0; i < device.caps.get_size(); i++) {
+ unowned Gst.Structure? that = device.caps.get_structure(i);
+ if (!that.has_name("video/x-raw")) continue;
+ int num = 0, den = 0, width = 0, height = 0;
+ if (!that.has_field("framerate") || !that.get_fraction("framerate", out num, out den)) continue;
+ if (!that.has_field("width") || !that.get_int("width", out width)) continue;
+ if (!that.has_field("height") || !that.get_int("height", out height)) continue;
+ int fps = num/den;
+ if (best_fps < fps || best_fps == fps && best_width < width || best_fps == fps && best_width == width && best_height < height) {
+ best_fps = fps;
+ best_width = width;
+ best_height = height;
+ best_index = i;
+ }
+ }
+ return device.caps.copy_nth(best_index);
+ } else if (device.caps.get_size() > 0) {
+ return device.caps.copy_nth(0);
+ } else {
+ return new Gst.Caps.any();
+ }
+ }
+
+ private void create() {
+ debug("Creating device %s", id);
+ plugin.pause();
+ element = device.create_element(id);
+ pipe.add(element);
+ if (is_source) {
+ filter = Gst.ElementFactory.make("capsfilter", @"$id-caps-filter");
+ filter.@set("caps", get_best_caps());
+ pipe.add(filter);
+ element.link(filter);
+ if (media == "audio") {
+ dsp = Gst.ElementFactory.make("webrtcdsp", @"$id-dsp");
+ dsp.@set("probe", plugin.echoprobe.name);
+ pipe.add(dsp);
+ filter.link(dsp);
+ }
+ tee = Gst.ElementFactory.make("tee", @"$id-tee");
+ tee.@set("allow-not-linked", true);
+ pipe.add(tee);
+ (dsp ?? filter).link(tee);
+ }
+ if (is_sink) {
+ element.@set("async", false);
+ element.@set("sync", false);
+ }
+ if (is_sink && media == "audio") {
+// mixer = Gst.ElementFactory.make("audiomixer", @"$id-mixer");
+// pipe.add(mixer);
+// mixer.link(plugin.echoprobe);
+ plugin.echoprobe.link(element);
+ }
+ plugin.unpause();
+ }
+
+ private void destroy() {
+ if (mixer != null) {
+ if (is_sink && media == "audio") {
+ plugin.echoprobe.unlink(mixer);
+ }
+ int linked_sink_pads = 0;
+ mixer.foreach_sink_pad((_, pad) => {
+ if (pad.is_linked()) linked_sink_pads++;
+ return true;
+ });
+ if (linked_sink_pads > 0) {
+ warning("%s-mixer still has %i sink pads while being destroyed", id, linked_sink_pads);
+ }
+ mixer.set_locked_state(true);
+ mixer.set_state(Gst.State.NULL);
+ mixer.unlink(element);
+ pipe.remove(mixer);
+ mixer = null;
+ } else if (is_sink && media == "audio") {
+ plugin.echoprobe.unlink(element);
+ }
+ element.set_locked_state(true);
+ element.set_state(Gst.State.NULL);
+ if (filter != null) element.unlink(filter);
+ else if (is_source) element.unlink(tee);
+ pipe.remove(element);
+ element = null;
+ if (filter != null) {
+ filter.set_locked_state(true);
+ filter.set_state(Gst.State.NULL);
+ filter.unlink(dsp ?? tee);
+ pipe.remove(filter);
+ filter = null;
+ }
+ if (dsp != null) {
+ dsp.set_locked_state(true);
+ dsp.set_state(Gst.State.NULL);
+ dsp.unlink(tee);
+ pipe.remove(dsp);
+ dsp = null;
+ }
+ if (tee != null) {
+ int linked_src_pads = 0;
+ tee.foreach_src_pad((_, pad) => {
+ if (pad.is_linked()) linked_src_pads++;
+ return true;
+ });
+ if (linked_src_pads != 0) {
+ warning("%s-tee still has %d src pads while being destroyed", id, linked_src_pads);
+ }
+ tee.set_locked_state(true);
+ tee.set_state(Gst.State.NULL);
+ pipe.remove(tee);
+ tee = null;
+ }
+ debug("Destroyed device %s", id);
+ }
+} \ No newline at end of file
diff --git a/plugins/rtp/src/module.vala b/plugins/rtp/src/module.vala
new file mode 100644
index 00000000..577e9f53
--- /dev/null
+++ b/plugins/rtp/src/module.vala
@@ -0,0 +1,264 @@
+using Gee;
+using Xmpp;
+using Xmpp.Xep;
+
+public class Dino.Plugins.Rtp.Module : JingleRtp.Module {
+ private Set<string> supported_codecs = new HashSet<string>();
+ private Set<string> unsupported_codecs = new HashSet<string>();
+ public Plugin plugin { get; private set; }
+ public CodecUtil codec_util { get {
+ return plugin.codec_util;
+ }}
+
+ public Module(Plugin plugin) {
+ base();
+ this.plugin = plugin;
+ }
+
+ private async bool pipeline_works(string media, string element_desc) {
+ var supported = false;
+ string pipeline_desc = @"$(media)testsrc is-live=true ! $element_desc ! appsink name=output";
+ try {
+ var pipeline = Gst.parse_launch(pipeline_desc);
+ var output = (pipeline as Gst.Bin).get_by_name("output") as Gst.App.Sink;
+ SourceFunc callback = pipeline_works.callback;
+ var finished = false;
+ output.emit_signals = true;
+ output.new_sample.connect(() => {
+ if (!finished) {
+ finished = true;
+ supported = true;
+ Idle.add(() => {
+ callback();
+ return Source.REMOVE;
+ });
+ }
+ return Gst.FlowReturn.EOS;
+ });
+ pipeline.bus.add_watch(Priority.DEFAULT, (_, message) => {
+ if (message.type == Gst.MessageType.ERROR && !finished) {
+ Error e;
+ string d;
+ message.parse_error(out e, out d);
+ debug("pipeline [%s] failed: %s", pipeline_desc, e.message);
+ debug(d);
+ finished = true;
+ callback();
+ }
+ return true;
+ });
+ Timeout.add(2000, () => {
+ if (!finished) {
+ finished = true;
+ callback();
+ }
+ return Source.REMOVE;
+ });
+ pipeline.set_state(Gst.State.PLAYING);
+ yield;
+ pipeline.set_state(Gst.State.NULL);
+ } catch (Error e) {
+ debug("pipeline [%s] failed: %s", pipeline_desc, e.message);
+ }
+ return supported;
+ }
+
+ private async bool supports(string media, JingleRtp.PayloadType payload_type) {
+ string codec = CodecUtil.get_codec_from_payload(media, payload_type);
+ if (codec == null) return false;
+ if (unsupported_codecs.contains(codec)) return false;
+ if (supported_codecs.contains(codec)) return true;
+
+ string encode_element = codec_util.get_encode_element_name(media, codec);
+ string decode_element = codec_util.get_decode_element_name(media, codec);
+ if (encode_element == null || decode_element == null) {
+ debug("No suitable encoder or decoder found for %s", codec);
+ unsupported_codecs.add(codec);
+ return false;
+ }
+
+ string encode_bin = codec_util.get_encode_bin_description(media, codec, encode_element);
+ while (!(yield pipeline_works(media, encode_bin))) {
+ debug("%s not suited for encoding %s", encode_element, codec);
+ codec_util.mark_element_unsupported(encode_element);
+ encode_element = codec_util.get_encode_element_name(media, codec);
+ if (encode_element == null) {
+ debug("No suitable encoder found for %s", codec);
+ unsupported_codecs.add(codec);
+ return false;
+ }
+ encode_bin = codec_util.get_encode_bin_description(media, codec, encode_element);
+ }
+ debug("using %s to encode %s", encode_element, codec);
+
+ string decode_bin = codec_util.get_decode_bin_description(media, codec, decode_element);
+ while (!(yield pipeline_works(media, @"$encode_bin ! $decode_bin"))) {
+ debug("%s not suited for decoding %s", decode_element, codec);
+ codec_util.mark_element_unsupported(decode_element);
+ decode_element = codec_util.get_decode_element_name(media, codec);
+ if (decode_element == null) {
+ debug("No suitable decoder found for %s", codec);
+ unsupported_codecs.add(codec);
+ return false;
+ }
+ decode_bin = codec_util.get_decode_bin_description(media, codec, decode_element);
+ }
+ debug("using %s to decode %s", decode_element, codec);
+
+ supported_codecs.add(codec);
+ return true;
+ }
+
+ public async void add_if_supported(Gee.List<JingleRtp.PayloadType> list, string media, JingleRtp.PayloadType payload_type) {
+ if (yield supports(media, payload_type)) {
+ list.add(payload_type);
+ }
+ }
+
+ public override async Gee.List<JingleRtp.PayloadType> get_supported_payloads(string media) {
+ Gee.List<JingleRtp.PayloadType> list = new ArrayList<JingleRtp.PayloadType>(JingleRtp.PayloadType.equals_func);
+ if (media == "audio") {
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ channels = 2,
+ clockrate = 48000,
+ name = "opus",
+ id = 96
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ channels = 1,
+ clockrate = 32000,
+ name = "speex",
+ id = 97
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ channels = 1,
+ clockrate = 16000,
+ name = "speex",
+ id = 98
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ channels = 1,
+ clockrate = 8000,
+ name = "speex",
+ id = 99
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ channels = 1,
+ clockrate = 8000,
+ name = "PCMU",
+ id = 0
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ channels = 1,
+ clockrate = 8000,
+ name = "PCMA",
+ id = 8
+ });
+ } else if (media == "video") {
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ clockrate = 90000,
+ name = "H264",
+ id = 96
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ clockrate = 90000,
+ name = "VP9",
+ id = 97
+ });
+ yield add_if_supported(list, media, new JingleRtp.PayloadType() {
+ clockrate = 90000,
+ name = "VP8",
+ id = 98
+ });
+ } else {
+ warning("Unsupported media type: %s", media);
+ }
+ return list;
+ }
+
+ public override async JingleRtp.PayloadType? pick_payload_type(string media, Gee.List<JingleRtp.PayloadType> payloads) {
+ if (media == "audio") {
+ foreach (JingleRtp.PayloadType type in payloads) {
+ if (yield supports(media, type)) return type;
+ }
+ } else if (media == "video") {
+ foreach (JingleRtp.PayloadType type in payloads) {
+ if (yield supports(media, type)) return type;
+ }
+ } else {
+ warning("Unsupported media type: %s", media);
+ }
+ return null;
+ }
+
+ public override JingleRtp.Stream create_stream(Jingle.Content content) {
+ return plugin.open_stream(content);
+ }
+
+ public override void close_stream(JingleRtp.Stream stream) {
+ var rtp_stream = stream as Rtp.Stream;
+ plugin.close_stream(rtp_stream);
+ }
+
+// public uint32 get_session_id(string id) {
+// return (uint32) id.split("-")[0].to_int();
+// }
+//
+// public string create_feed(string media, bool incoming) {
+// init();
+// string id = random_uuid();
+// if (media == "audio") {
+// id = "0-" + id;
+// } else {
+// id = "1-" + id;
+// }
+// MediaDevice? device = plugin.get_preferred_device(media, incoming);
+// Feed feed;
+// if (incoming) {
+// if (media == "audio") {
+// feed = new IncomingAudioFeed(id, this, device);
+// } else if (media == "video") {
+// feed = new IncomingVideoFeed(id, this, device);
+// } else {
+// critical("Incoming feed of media '%s' not supported", media);
+// return id;
+// }
+// } else {
+// if (media == "audio") {
+// string? matching_incoming_feed_id = null;
+// foreach (Feed match in plugin.feeds.values) {
+// if (match is IncomingAudioFeed) {
+// matching_incoming_feed_id = match.id;
+// }
+// }
+// feed = new OutgoingAudioFeed(id, this, device);
+// } else if (media == "video") {
+// feed = new OutgoingVideoFeed(id, this, device);
+// } else {
+// critical("Outgoing feed of media '%s' not supported", media);
+// return id;
+// }
+// }
+// plugin.add_feed(id, feed);
+// return id;
+// }
+//
+// public void connect_feed(string id, JingleRtp.PayloadType payload, Jingle.DatagramConnection connection) {
+// if (!plugin.feeds.has_key(id)) {
+// critical("Tried to connect feed with id %s, but no such feed found", id);
+// return;
+// }
+// Feed feed = plugin.feeds[id];
+// feed.connect(payload, connection);
+// }
+//
+// public void destroy_feed(string id) {
+// if (!plugin.feeds.has_key(id)) {
+// critical("Tried to destroy feed with id %s, but no such feed found", id);
+// return;
+// }
+// Feed feed = plugin.feeds[id];
+// feed.destroy();
+// plugin.feeds.remove(id);
+// }
+} \ No newline at end of file
diff --git a/plugins/rtp/src/participant.vala b/plugins/rtp/src/participant.vala
new file mode 100644
index 00000000..1ca13191
--- /dev/null
+++ b/plugins/rtp/src/participant.vala
@@ -0,0 +1,39 @@
+using Gee;
+using Xmpp;
+
+public class Dino.Plugins.Rtp.Participant {
+ public Jid full_jid { get; private set; }
+
+ protected Gst.Pipeline pipe;
+ private Map<Stream, uint32> ssrcs = new HashMap<Stream, uint32>();
+
+ public Participant(Gst.Pipeline pipe, Jid full_jid) {
+ this.pipe = pipe;
+ this.full_jid = full_jid;
+ }
+
+ public uint32 get_ssrc(Stream stream) {
+ if (ssrcs.has_key(stream)) {
+ return ssrcs[stream];
+ }
+ return 0;
+ }
+
+ public void set_ssrc(Stream stream, uint32 ssrc) {
+ if (ssrcs.has_key(stream)) {
+ warning("Learning ssrc %ul for %s in %s when it is already known as %ul", ssrc, full_jid.to_string(), stream.to_string(), ssrcs[stream]);
+ } else {
+ stream.on_destroy.connect(unset_ssrc);
+ }
+ ssrcs[stream] = ssrc;
+ }
+
+ public void unset_ssrc(Stream stream) {
+ ssrcs.unset(stream);
+ stream.on_destroy.disconnect(unset_ssrc);
+ }
+
+ public string to_string() {
+ return @"participant $full_jid";
+ }
+} \ No newline at end of file
diff --git a/plugins/rtp/src/plugin.vala b/plugins/rtp/src/plugin.vala
new file mode 100644
index 00000000..69b0f37a
--- /dev/null
+++ b/plugins/rtp/src/plugin.vala
@@ -0,0 +1,413 @@
+using Gee;
+using Xmpp;
+using Xmpp.Xep;
+
+public class Dino.Plugins.Rtp.Plugin : RootInterface, VideoCallPlugin, Object {
+ public Dino.Application app { get; private set; }
+ public CodecUtil codec_util { get; private set; }
+ public Gst.DeviceMonitor device_monitor { get; private set; }
+ public Gst.Pipeline pipe { get; private set; }
+ public Gst.Bin rtpbin { get; private set; }
+ public Gst.Element echoprobe { get; private set; }
+
+ private Gee.List<Stream> streams = new ArrayList<Stream>();
+ private Gee.List<Device> devices = new ArrayList<Device>();
+ // private Gee.List<Participant> participants = new ArrayList<Participant>();
+
+ public void registered(Dino.Application app) {
+ this.app = app;
+ this.codec_util = new CodecUtil();
+ app.startup.connect(startup);
+ app.add_option_group(Gst.init_get_option_group());
+ app.stream_interactor.module_manager.initialize_account_modules.connect((account, list) => {
+ list.add(new Module(this));
+ });
+ app.plugin_registry.video_call_plugin = this;
+ }
+
+ private int pause_count = 0;
+ public void pause() {
+// if (pause_count == 0) {
+// debug("Pausing pipe for modifications");
+// pipe.set_state(Gst.State.PAUSED);
+// }
+ pause_count++;
+ }
+ public void unpause() {
+ pause_count--;
+ if (pause_count == 0) {
+ debug("Continue pipe after modifications");
+ pipe.set_state(Gst.State.PLAYING);
+ }
+ if (pause_count < 0) warning("Pause count below zero!");
+ }
+
+ public void startup() {
+ device_monitor = new Gst.DeviceMonitor();
+ device_monitor.show_all = true;
+ device_monitor.get_bus().add_watch(Priority.DEFAULT, on_device_monitor_message);
+ device_monitor.start();
+
+ pipe = new Gst.Pipeline(null);
+
+ // RTP
+ rtpbin = Gst.ElementFactory.make("rtpbin", null) as Gst.Bin;
+ if (rtpbin == null) {
+ warning("RTP not supported");
+ pipe = null;
+ return;
+ }
+ rtpbin.pad_added.connect(on_rtp_pad_added);
+ rtpbin.@set("latency", 100);
+ rtpbin.connect("signal::request-pt-map", request_pt_map, this);
+ pipe.add(rtpbin);
+
+ // Audio echo probe
+ echoprobe = Gst.ElementFactory.make("webrtcechoprobe", "echo-probe");
+ pipe.add(echoprobe);
+
+ // Pipeline
+ pipe.auto_flush_bus = true;
+ pipe.bus.add_watch(GLib.Priority.DEFAULT, (_, message) => {
+ on_pipe_bus_message(message);
+ return true;
+ });
+ pipe.set_state(Gst.State.PLAYING);
+ }
+
+ private static Gst.Caps? request_pt_map(Gst.Element rtpbin, uint session, uint pt, Plugin plugin) {
+ debug("request-pt-map");
+ return null;
+ }
+
+ private void on_rtp_pad_added(Gst.Pad pad) {
+ debug("pad added: %s", pad.name);
+ if (pad.name.has_prefix("recv_rtp_src_")) {
+ string[] split = pad.name.split("_");
+ uint8 rtpid = (uint8)int.parse(split[3]);
+ foreach (Stream stream in streams) {
+ if (stream.rtpid == rtpid) {
+ stream.on_ssrc_pad_added(split[4], pad);
+ }
+ }
+ }
+ if (pad.name.has_prefix("send_rtp_src_")) {
+ string[] split = pad.name.split("_");
+ uint8 rtpid = (uint8)int.parse(split[3]);
+ debug("pad %s for stream %hhu", pad.name, rtpid);
+ foreach (Stream stream in streams) {
+ if (stream.rtpid == rtpid) {
+ stream.on_send_rtp_src_added(pad);
+ }
+ }
+ }
+ }
+
+ private void on_pipe_bus_message(Gst.Message message) {
+ switch (message.type) {
+ case Gst.MessageType.ERROR:
+ Error error;
+ string str;
+ message.parse_error(out error, out str);
+ warning("Error in pipeline: %s", error.message);
+ debug(str);
+ break;
+ case Gst.MessageType.WARNING:
+ Error error;
+ string str;
+ message.parse_warning(out error, out str);
+ warning("Warning in pipeline: %s", error.message);
+ debug(str);
+ break;
+ case Gst.MessageType.CLOCK_LOST:
+ debug("Clock lost. Restarting");
+ pipe.set_state(Gst.State.READY);
+ pipe.set_state(Gst.State.PLAYING);
+ break;
+ case Gst.MessageType.STATE_CHANGED:
+ Gst.State new_state;
+ message.parse_state_changed(null, out new_state, null);
+ if (message.src is Gst.Element) {
+ debug("%s changed state to %s", ((Gst.Element)message.src).name, new_state.to_string());
+ }
+ break;
+ case Gst.MessageType.STREAM_STATUS:
+ Gst.StreamStatusType status;
+ Gst.Element owner;
+ message.parse_stream_status(out status, out owner);
+ if (owner != null) {
+ debug("%s stream changed status to %s", owner.name, status.to_string());
+ }
+ break;
+ case Gst.MessageType.ELEMENT:
+ unowned Gst.Structure struc = message.get_structure();
+ if (struc != null && message.src is Gst.Element) {
+ debug("Message from %s in pipeline: %s", ((Gst.Element)message.src).name, struc.to_string());
+ }
+ break;
+ case Gst.MessageType.NEW_CLOCK:
+ debug("New clock.");
+ break;
+ case Gst.MessageType.TAG:
+ // Ignore
+ break;
+ case Gst.MessageType.QOS:
+ // Ignore
+ break;
+ default:
+ debug("Pipe bus message: %s", message.type.to_string());
+ break;
+ }
+ }
+
+ private bool on_device_monitor_message(Gst.Bus bus, Gst.Message message) {
+ Gst.Device old_device = null;
+ Gst.Device device = null;
+ switch (message.type) {
+ case Gst.MessageType.DEVICE_ADDED:
+ message.parse_device_added(out device);
+ if (device.properties.has_name("pipewire-proplist") && device.device_class.has_prefix("Audio/")) return Source.CONTINUE;
+ if (device.properties.get_string("device.class") == "monitor") return Source.CONTINUE;
+ devices.add(new Device(this, device));
+ break;
+ case Gst.MessageType.DEVICE_CHANGED:
+ message.parse_device_changed(out device, out old_device);
+ if (device.properties.has_name("pipewire-proplist") && device.device_class.has_prefix("Audio/")) return Source.CONTINUE;
+ if (device.properties.get_string("device.class") == "monitor") return Source.CONTINUE;
+ devices.first_match((it) => it.matches(old_device)).update(device);
+ break;
+ case Gst.MessageType.DEVICE_REMOVED:
+ message.parse_device_removed(out device);
+ if (device.properties.has_name("pipewire-proplist") && device.device_class.has_prefix("Audio/")) return Source.CONTINUE;
+ if (device.properties.get_string("device.class") == "monitor") return Source.CONTINUE;
+ devices.remove(devices.first_match((it) => it.matches(device)));
+ break;
+ }
+ if (device != null) {
+ switch (device.device_class) {
+ case "Audio/Source":
+ devices_changed("audio", false);
+ break;
+ case "Audio/Sink":
+ devices_changed("audio", true);
+ break;
+ case "Video/Source":
+ devices_changed("video", false);
+ break;
+ case "Video/Sink":
+ devices_changed("video", true);
+ break;
+ }
+ }
+ return Source.CONTINUE;
+ }
+
+ public uint8 next_free_id() {
+ uint8 rtpid = 0;
+ while (streams.size < 100 && streams.any_match((stream) => stream.rtpid == rtpid)) {
+ rtpid++;
+ }
+ return rtpid;
+ }
+
+ // public Participant get_participant(Jid full_jid, bool self) {
+// foreach (Participant participant in participants) {
+// if (participant.full_jid.equals(full_jid)) {
+// return participant;
+// }
+// }
+// Participant participant;
+// if (self) {
+// participant = new SelfParticipant(pipe, full_jid);
+// } else {
+// participant = new Participant(pipe, full_jid);
+// }
+// participants.add(participant);
+// return participant;
+// }
+
+ public Stream open_stream(Xmpp.Xep.Jingle.Content content) {
+ var content_params = content.content_params as Xmpp.Xep.JingleRtp.Parameters;
+ if (content_params == null) return null;
+ Stream stream;
+ if (content_params.media == "video") {
+ stream = new VideoStream(this, content);
+ } else {
+ stream = new Stream(this, content);
+ }
+ streams.add(stream);
+ return stream;
+ }
+
+ public void close_stream(Stream stream) {
+ streams.remove(stream);
+ stream.destroy();
+ }
+
+ public void shutdown() {
+ device_monitor.stop();
+ pipe.set_state(Gst.State.NULL);
+ rtpbin = null;
+ pipe = null;
+ Gst.deinit();
+ }
+
+ public VideoCallWidget? create_widget(WidgetType type) {
+ if (type == WidgetType.GTK) {
+ return new VideoWidget(this);
+ }
+ return null;
+ }
+
+ public Gee.List<MediaDevice> get_devices(string media, bool incoming) {
+ if (media == "video" && !incoming) {
+ return get_video_sources();
+ }
+
+ ArrayList<MediaDevice> result = new ArrayList<MediaDevice>();
+ foreach (Device device in devices) {
+ if (device.media == media && (incoming && device.is_sink || !incoming && device.is_source)) {
+ result.add(device);
+ }
+ }
+ if (media == "audio") {
+ // Reorder sources
+ result.sort((media_left, media_right) => {
+ Device left = media_left as Device;
+ Device right = media_right as Device;
+ if (left == null) return 1;
+ if (right == null) return -1;
+
+ bool left_is_pipewire = left.device.properties.has_name("pipewire-proplist");
+ bool right_is_pipewire = right.device.properties.has_name("pipewire-proplist");
+
+ bool left_is_default = false;
+ left.device.properties.get_boolean("is-default", out left_is_default);
+ bool right_is_default = false;
+ right.device.properties.get_boolean("is-default", out right_is_default);
+
+ // Prefer pipewire
+ if (left_is_pipewire && !right_is_pipewire) return -1;
+ if (right_is_pipewire && !left_is_pipewire) return 1;
+
+ // Prefer pulse audio default device
+ if (left_is_default && !right_is_default) return -1;
+ if (right_is_default && !left_is_default) return 1;
+
+
+ return 0;
+ });
+ }
+ return result;
+ }
+
+ public Gee.List<MediaDevice> get_video_sources() {
+ ArrayList<MediaDevice> pipewire_devices = new ArrayList<MediaDevice>();
+ ArrayList<MediaDevice> other_devices = new ArrayList<MediaDevice>();
+
+ foreach (Device device in devices) {
+ if (device.media != "video") continue;
+ if (device.is_sink) continue;
+
+ bool is_color = false;
+ for (int i = 0; i < device.device.caps.get_size(); i++) {
+ unowned Gst.Structure structure = device.device.caps.get_structure(i);
+ if (structure.has_field("format") && !structure.get_string("format").has_prefix("GRAY")) {
+ is_color = true;
+ }
+ }
+
+ // Don't allow grey-scale devices
+ if (!is_color) continue;
+
+ if (device.device.properties.has_name("pipewire-proplist")) {
+ pipewire_devices.add(device);
+ } else {
+ other_devices.add(device);
+ }
+ }
+
+ // If we have any pipewire devices, present only those. Don't want duplicated devices from pipewire and video for linux.
+ ArrayList<MediaDevice> devices = pipewire_devices.size > 0 ? pipewire_devices : other_devices;
+
+ // Reorder sources
+ devices.sort((media_left, media_right) => {
+ Device left = media_left as Device;
+ Device right = media_right as Device;
+ if (left == null) return 1;
+ if (right == null) return -1;
+
+ int left_fps = 0;
+ for (int i = 0; i < left.device.caps.get_size(); i++) {
+ unowned Gst.Structure structure = left.device.caps.get_structure(i);
+ int num = 0, den = 0;
+ if (structure.has_field("framerate") && structure.get_fraction("framerate", out num, out den)) left_fps = int.max(left_fps, num / den);
+ }
+
+ int right_fps = 0;
+ for (int i = 0; i < left.device.caps.get_size(); i++) {
+ unowned Gst.Structure structure = left.device.caps.get_structure(i);
+ int num = 0, den = 0;
+ if (structure.has_field("framerate") && structure.get_fraction("framerate", out num, out den)) right_fps = int.max(right_fps, num / den);
+ }
+
+ // More FPS is better
+ if (left_fps > right_fps) return -1;
+ if (right_fps > left_fps) return 1;
+
+ return 0;
+ });
+
+ return devices;
+ }
+
+ public Device? get_preferred_device(string media, bool incoming) {
+ foreach (MediaDevice media_device in get_devices(media, incoming)) {
+ Device? device = media_device as Device;
+ if (device != null) return device;
+ }
+ warning("No preferred device for %s %s. Media will not be processed.", incoming ? "incoming" : "outgoing", media);
+ return null;
+ }
+
+ public MediaDevice? get_device(Xmpp.Xep.JingleRtp.Stream stream, bool incoming) {
+ Stream plugin_stream = stream as Stream;
+ if (plugin_stream == null) return null;
+ if (incoming) {
+ return plugin_stream.output_device ?? get_preferred_device(stream.media, incoming);
+ } else {
+ return plugin_stream.input_device ?? get_preferred_device(stream.media, incoming);
+ }
+ }
+
+ private void dump_dot() {
+ string name = @"pipe-$(pipe.clock.get_time())-$(pipe.current_state)";
+ Gst.Debug.bin_to_dot_file(pipe, Gst.DebugGraphDetails.ALL, name);
+ debug("Stored pipe details as %s", name);
+ }
+
+ public void set_pause(Xmpp.Xep.JingleRtp.Stream stream, bool pause) {
+ Stream plugin_stream = stream as Stream;
+ if (plugin_stream == null) return;
+ if (pause) {
+ plugin_stream.pause();
+ } else {
+ plugin_stream.unpause();
+ Timeout.add_seconds(3, () => {
+ dump_dot();
+ return false;
+ });
+ }
+ }
+
+ public void set_device(Xmpp.Xep.JingleRtp.Stream stream, MediaDevice? device) {
+ Device real_device = device as Device;
+ Stream plugin_stream = stream as Stream;
+ if (real_device == null || plugin_stream == null) return;
+ if (real_device.is_source) {
+ plugin_stream.input_device = real_device;
+ } else if (real_device.is_sink) {
+ plugin_stream.output_device = real_device;
+ }
+ }
+}
diff --git a/plugins/rtp/src/register_plugin.vala b/plugins/rtp/src/register_plugin.vala
new file mode 100644
index 00000000..a80137ea
--- /dev/null
+++ b/plugins/rtp/src/register_plugin.vala
@@ -0,0 +1,3 @@
+public Type register_plugin(Module module) {
+ return typeof (Dino.Plugins.Rtp.Plugin);
+}
diff --git a/plugins/rtp/src/stream.vala b/plugins/rtp/src/stream.vala
new file mode 100644
index 00000000..aea2fe85
--- /dev/null
+++ b/plugins/rtp/src/stream.vala
@@ -0,0 +1,432 @@
+using Gee;
+using Xmpp;
+
+public class Dino.Plugins.Rtp.Stream : Xmpp.Xep.JingleRtp.Stream {
+ public uint8 rtpid { get; private set; }
+
+ public Plugin plugin { get; private set; }
+ public Gst.Pipeline pipe { get {
+ return plugin.pipe;
+ }}
+ public Gst.Element rtpbin { get {
+ return plugin.rtpbin;
+ }}
+ public CodecUtil codec_util { get {
+ return plugin.codec_util;
+ }}
+ private Gst.App.Sink send_rtp;
+ private Gst.App.Sink send_rtcp;
+ private Gst.App.Src recv_rtp;
+ private Gst.App.Src recv_rtcp;
+ private Gst.Element encode;
+ private Gst.Element decode;
+ private Gst.Element input;
+ private Gst.Element output;
+
+ private Device _input_device;
+ public Device input_device { get { return _input_device; } set {
+ if (!paused) {
+ if (this._input_device != null) {
+ this._input_device.unlink();
+ this._input_device = null;
+ }
+ set_input(value != null ? value.link_source() : null);
+ }
+ this._input_device = value;
+ }}
+ private Device _output_device;
+ public Device output_device { get { return _output_device; } set {
+ if (output != null) remove_output(output);
+ if (value != null) add_output(value.link_sink());
+ this._output_device = value;
+ }}
+
+ public bool created { get; private set; default = false; }
+ public bool paused { get; private set; default = false; }
+ private bool push_recv_data = false;
+ private string participant_ssrc = null;
+
+ private Gst.Pad recv_rtcp_sink_pad;
+ private Gst.Pad recv_rtp_sink_pad;
+ private Gst.Pad recv_rtp_src_pad;
+ private Gst.Pad send_rtcp_src_pad;
+ private Gst.Pad send_rtp_sink_pad;
+ private Gst.Pad send_rtp_src_pad;
+
+ public Stream(Plugin plugin, Xmpp.Xep.Jingle.Content content) {
+ base(content);
+ this.plugin = plugin;
+ this.rtpid = plugin.next_free_id();
+
+ content.notify["senders"].connect_after(on_senders_changed);
+ }
+
+ public void on_senders_changed() {
+ if (sending && input == null) {
+ input_device = plugin.get_preferred_device(media, false);
+ }
+ if (receiving && output == null) {
+ output_device = plugin.get_preferred_device(media, true);
+ }
+ }
+
+ public override void create() {
+ plugin.pause();
+
+ // Create i/o if needed
+
+ if (input == null && input_device == null && sending) {
+ input_device = plugin.get_preferred_device(media, false);
+ }
+ if (output == null && output_device == null && receiving && media == "audio") {
+ output_device = plugin.get_preferred_device(media, true);
+ }
+
+ // Create app elements
+ send_rtp = Gst.ElementFactory.make("appsink", @"rtp-sink-$rtpid") as Gst.App.Sink;
+ send_rtp.async = false;
+ send_rtp.caps = CodecUtil.get_caps(media, payload_type);
+ send_rtp.emit_signals = true;
+ send_rtp.sync = false;
+ send_rtp.new_sample.connect(on_new_sample);
+ pipe.add(send_rtp);
+
+ send_rtcp = Gst.ElementFactory.make("appsink", @"rtcp-sink-$rtpid") as Gst.App.Sink;
+ send_rtcp.async = false;
+ send_rtcp.caps = new Gst.Caps.empty_simple("application/x-rtcp");
+ send_rtcp.emit_signals = true;
+ send_rtcp.sync = false;
+ send_rtcp.new_sample.connect(on_new_sample);
+ pipe.add(send_rtcp);
+
+ recv_rtp = Gst.ElementFactory.make("appsrc", @"rtp-src-$rtpid") as Gst.App.Src;
+ recv_rtp.caps = CodecUtil.get_caps(media, payload_type);
+ recv_rtp.do_timestamp = true;
+ recv_rtp.format = Gst.Format.TIME;
+ recv_rtp.is_live = true;
+ pipe.add(recv_rtp);
+
+ recv_rtcp = Gst.ElementFactory.make("appsrc", @"rtcp-src-$rtpid") as Gst.App.Src;
+ recv_rtcp.caps = new Gst.Caps.empty_simple("application/x-rtcp");
+ recv_rtcp.do_timestamp = true;
+ recv_rtcp.format = Gst.Format.TIME;
+ recv_rtcp.is_live = true;
+ pipe.add(recv_rtcp);
+
+ // Connect RTCP
+ send_rtcp_src_pad = rtpbin.get_request_pad(@"send_rtcp_src_$rtpid");
+ send_rtcp_src_pad.link(send_rtcp.get_static_pad("sink"));
+ recv_rtcp_sink_pad = rtpbin.get_request_pad(@"recv_rtcp_sink_$rtpid");
+ recv_rtcp.get_static_pad("src").link(recv_rtcp_sink_pad);
+
+ // Connect input
+ encode = codec_util.get_encode_bin(media, payload_type, @"encode-$rtpid");
+ pipe.add(encode);
+ send_rtp_sink_pad = rtpbin.get_request_pad(@"send_rtp_sink_$rtpid");
+ encode.get_static_pad("src").link(send_rtp_sink_pad);
+ if (input != null) {
+ input.link(encode);
+ }
+
+ // Connect output
+ decode = codec_util.get_decode_bin(media, payload_type, @"decode-$rtpid");
+ pipe.add(decode);
+ if (output != null) {
+ decode.link(output);
+ }
+
+ // Connect RTP
+ recv_rtp_sink_pad = rtpbin.get_request_pad(@"recv_rtp_sink_$rtpid");
+ recv_rtp.get_static_pad("src").link(recv_rtp_sink_pad);
+
+ created = true;
+ push_recv_data = true;
+ plugin.unpause();
+ }
+
+ private Gst.FlowReturn on_new_sample(Gst.App.Sink sink) {
+ if (sink == null) {
+ debug("Sink is null");
+ return Gst.FlowReturn.EOS;
+ }
+ Gst.Sample sample = sink.pull_sample();
+ Gst.Buffer buffer = sample.get_buffer();
+ uint8[] data;
+ buffer.extract_dup(0, buffer.get_size(), out data);
+ if (sink == send_rtp) {
+ on_send_rtp_data(new Bytes.take(data));
+ } else if (sink == send_rtcp) {
+ on_send_rtcp_data(new Bytes.take(data));
+ } else {
+ warning("unknown sample");
+ }
+ return Gst.FlowReturn.OK;
+ }
+
+ private static Gst.PadProbeReturn drop_probe() {
+ return Gst.PadProbeReturn.DROP;
+ }
+
+ public override void destroy() {
+ // Stop network communication
+ push_recv_data = false;
+ recv_rtp.end_of_stream();
+ recv_rtcp.end_of_stream();
+ send_rtp.new_sample.disconnect(on_new_sample);
+ send_rtcp.new_sample.disconnect(on_new_sample);
+
+ // Disconnect input device
+ if (input != null) {
+ input.unlink(encode);
+ input = null;
+ }
+ if (this._input_device != null) {
+ if (!paused) this._input_device.unlink();
+ this._input_device = null;
+ }
+
+ // Disconnect encode
+ encode.set_locked_state(true);
+ encode.set_state(Gst.State.NULL);
+ encode.get_static_pad("src").unlink(send_rtp_sink_pad);
+ pipe.remove(encode);
+ encode = null;
+
+ // Disconnect RTP sending
+ if (send_rtp_src_pad != null) {
+ send_rtp_src_pad.add_probe(Gst.PadProbeType.BLOCK, drop_probe);
+ send_rtp_src_pad.unlink(send_rtp.get_static_pad("sink"));
+ }
+ send_rtp.set_locked_state(true);
+ send_rtp.set_state(Gst.State.NULL);
+ pipe.remove(send_rtp);
+ send_rtp = null;
+
+ // Disconnect decode
+ if (recv_rtp_src_pad != null) {
+ recv_rtp_src_pad.add_probe(Gst.PadProbeType.BLOCK, drop_probe);
+ recv_rtp_src_pad.unlink(decode.get_static_pad("sink"));
+ }
+
+ // Disconnect RTP receiving
+ recv_rtp.set_locked_state(true);
+ recv_rtp.set_state(Gst.State.NULL);
+ recv_rtp.get_static_pad("src").unlink(recv_rtp_sink_pad);
+ pipe.remove(recv_rtp);
+ recv_rtp = null;
+
+ // Disconnect output
+ if (output != null) {
+ decode.unlink(output);
+ }
+ decode.set_locked_state(true);
+ decode.set_state(Gst.State.NULL);
+ pipe.remove(decode);
+ decode = null;
+ output = null;
+
+ // Disconnect output device
+ if (this._output_device != null) {
+ this._output_device.unlink();
+ this._output_device = null;
+ }
+
+ // Disconnect RTCP receiving
+ recv_rtcp.get_static_pad("src").unlink(recv_rtcp_sink_pad);
+ recv_rtcp.set_locked_state(true);
+ recv_rtcp.set_state(Gst.State.NULL);
+ pipe.remove(recv_rtcp);
+ recv_rtcp = null;
+
+ // Disconnect RTCP sending
+ send_rtcp_src_pad.unlink(send_rtcp.get_static_pad("sink"));
+ send_rtcp.set_locked_state(true);
+ send_rtcp.set_state(Gst.State.NULL);
+ pipe.remove(send_rtcp);
+ send_rtcp = null;
+
+ // Release rtp pads
+ rtpbin.release_request_pad(send_rtp_sink_pad);
+ send_rtp_sink_pad = null;
+ rtpbin.release_request_pad(recv_rtp_sink_pad);
+ recv_rtp_sink_pad = null;
+ rtpbin.release_request_pad(recv_rtcp_sink_pad);
+ recv_rtcp_sink_pad = null;
+ rtpbin.release_request_pad(send_rtcp_src_pad);
+ send_rtcp_src_pad = null;
+ send_rtp_src_pad = null;
+ recv_rtp_src_pad = null;
+ }
+
+ public override void on_recv_rtp_data(Bytes bytes) {
+ if (push_recv_data) {
+ recv_rtp.push_buffer(new Gst.Buffer.wrapped_bytes(bytes));
+ }
+ }
+
+ public override void on_recv_rtcp_data(Bytes bytes) {
+ if (push_recv_data) {
+ recv_rtcp.push_buffer(new Gst.Buffer.wrapped_bytes(bytes));
+ }
+ }
+
+ public override void on_rtp_ready() {
+ // If full frame has been sent before the connection was ready, the counterpart would only display our video after the next full frame.
+ // Send a full frame to let the counterpart display our video asap
+ rtpbin.send_event(new Gst.Event.custom(
+ Gst.EventType.CUSTOM_UPSTREAM,
+ new Gst.Structure("GstForceKeyUnit", "all-headers", typeof(bool), true, null))
+ );
+ }
+
+ public override void on_rtcp_ready() {
+ int rtp_session_id = (int) rtpid;
+ uint64 max_delay = int.MAX;
+ Object rtp_session;
+ bool rtp_sent;
+ GLib.Signal.emit_by_name(rtpbin, "get-internal-session", rtp_session_id, out rtp_session);
+ GLib.Signal.emit_by_name(rtp_session, "send-rtcp-full", max_delay, out rtp_sent);
+ debug("RTCP is ready, resending rtcp: %s", rtp_sent.to_string());
+ }
+
+ public void on_ssrc_pad_added(string ssrc, Gst.Pad pad) {
+ participant_ssrc = ssrc;
+ recv_rtp_src_pad = pad;
+ if (decode != null) {
+ plugin.pause();
+ debug("Link %s to %s decode for %s", recv_rtp_src_pad.name, media, name);
+ recv_rtp_src_pad.link(decode.get_static_pad("sink"));
+ plugin.unpause();
+ }
+ }
+
+ public void on_send_rtp_src_added(Gst.Pad pad) {
+ send_rtp_src_pad = pad;
+ if (send_rtp != null) {
+ plugin.pause();
+ debug("Link %s to %s send_rtp for %s", send_rtp_src_pad.name, media, name);
+ send_rtp_src_pad.link(send_rtp.get_static_pad("sink"));
+ plugin.unpause();
+ }
+ }
+
+ public void set_input(Gst.Element? input) {
+ set_input_and_pause(input, paused);
+ }
+
+ private void set_input_and_pause(Gst.Element? input, bool paused) {
+ if (created && this.input != null) {
+ this.input.unlink(encode);
+ this.input = null;
+ }
+
+ this.input = input;
+ this.paused = paused;
+
+ if (created && sending && !paused && input != null) {
+ plugin.pause();
+ input.link(encode);
+ plugin.unpause();
+ }
+ }
+
+ public void pause() {
+ if (paused) return;
+ set_input_and_pause(null, true);
+ if (input_device != null) input_device.unlink();
+ }
+
+ public void unpause() {
+ if (!paused) return;
+ set_input_and_pause(input_device != null ? input_device.link_source() : null, false);
+ }
+
+ ulong block_probe_handler_id = 0;
+ public virtual void add_output(Gst.Element element) {
+ if (output != null) {
+ critical("add_output() invoked more than once");
+ return;
+ }
+ this.output = element;
+ if (created) {
+ plugin.pause();
+ decode.link(element);
+ if (block_probe_handler_id != 0) {
+ decode.get_static_pad("src").remove_probe(block_probe_handler_id);
+ }
+ plugin.unpause();
+ }
+ }
+
+ public virtual void remove_output(Gst.Element element) {
+ if (output != element) {
+ critical("remove_output() invoked without prior add_output()");
+ return;
+ }
+ if (created) {
+ block_probe_handler_id = decode.get_static_pad("src").add_probe(Gst.PadProbeType.BLOCK, drop_probe);
+ decode.unlink(element);
+ }
+ if (this._output_device != null) {
+ this._output_device.unlink();
+ this._output_device = null;
+ }
+ this.output = null;
+ }
+}
+
+public class Dino.Plugins.Rtp.VideoStream : Stream {
+ private Gee.List<Gst.Element> outputs = new ArrayList<Gst.Element>();
+ private Gst.Element output_tee;
+
+ public VideoStream(Plugin plugin, Xmpp.Xep.Jingle.Content content) {
+ base(plugin, content);
+ if (media != "video") critical("VideoStream created for non-video media");
+ }
+
+ public override void create() {
+ plugin.pause();
+ output_tee = Gst.ElementFactory.make("tee", null);
+ output_tee.@set("allow-not-linked", true);
+ pipe.add(output_tee);
+ add_output(output_tee);
+ base.create();
+ foreach (Gst.Element output in outputs) {
+ output_tee.link(output);
+ }
+ plugin.unpause();
+ }
+
+ public override void destroy() {
+ foreach (Gst.Element output in outputs) {
+ output_tee.unlink(output);
+ }
+ base.destroy();
+ output_tee.set_locked_state(true);
+ output_tee.set_state(Gst.State.NULL);
+ pipe.remove(output_tee);
+ output_tee = null;
+ }
+
+ public override void add_output(Gst.Element element) {
+ if (element == output_tee) {
+ base.add_output(element);
+ return;
+ }
+ outputs.add(element);
+ if (output_tee != null) {
+ output_tee.link(element);
+ }
+ }
+
+ public override void remove_output(Gst.Element element) {
+ if (element == output_tee) {
+ base.remove_output(element);
+ return;
+ }
+ outputs.remove(element);
+ if (output_tee != null) {
+ output_tee.unlink(element);
+ }
+ }
+} \ No newline at end of file
diff --git a/plugins/rtp/src/video_widget.vala b/plugins/rtp/src/video_widget.vala
new file mode 100644
index 00000000..fa5ba138
--- /dev/null
+++ b/plugins/rtp/src/video_widget.vala
@@ -0,0 +1,110 @@
+public class Dino.Plugins.Rtp.VideoWidget : Gtk.Bin, Dino.Plugins.VideoCallWidget {
+ private static uint last_id = 0;
+
+ public uint id { get; private set; }
+ public Gst.Element element { get; private set; }
+ public Gtk.Widget widget { get; private set; }
+
+ public Plugin plugin { get; private set; }
+ public Gst.Pipeline pipe { get {
+ return plugin.pipe;
+ }}
+
+ private bool attached;
+ private Device? connected_device;
+ private Stream? connected_stream;
+ private Gst.Element convert;
+
+ public VideoWidget(Plugin plugin) {
+ this.plugin = plugin;
+
+ id = last_id++;
+ element = Gst.ElementFactory.make("gtksink", @"video-widget-$id");
+ if (element != null) {
+ Gtk.Widget widget;
+ element.@get("widget", out widget);
+ element.@set("async", false);
+ element.@set("sync", false);
+ this.widget = widget;
+ add(widget);
+ widget.visible = true;
+
+ // Listen for resolution changes
+ element.get_static_pad("sink").notify["caps"].connect(() => {
+ if (element.get_static_pad("sink").caps == null) return;
+
+ int width, height;
+ element.get_static_pad("sink").caps.get_structure(0).get_int("width", out width);
+ element.get_static_pad("sink").caps.get_structure(0).get_int("height", out height);
+ resolution_changed(width, height);
+ });
+ } else {
+ warning("Could not create GTK video sink. Won't display videos.");
+ }
+ }
+
+ public void display_stream(Xmpp.Xep.JingleRtp.Stream stream) {
+ if (element == null) return;
+ detach();
+ if (stream.media != "video") return;
+ connected_stream = stream as Stream;
+ if (connected_stream == null) return;
+ plugin.pause();
+ pipe.add(element);
+ convert = Gst.parse_bin_from_description(@"videoconvert name=video-widget-$id-convert", true);
+ convert.name = @"video-widget-$id-prepare";
+ pipe.add(convert);
+ convert.link(element);
+ connected_stream.add_output(convert);
+ element.set_locked_state(false);
+ plugin.unpause();
+ attached = true;
+ }
+
+ public void display_device(MediaDevice media_device) {
+ if (element == null) return;
+ detach();
+ connected_device = media_device as Device;
+ if (connected_device == null) return;
+ plugin.pause();
+ pipe.add(element);
+ convert = Gst.parse_bin_from_description(@"videoflip method=horizontal-flip name=video-widget-$id-flip ! videoconvert name=video-widget-$id-convert", true);
+ convert.name = @"video-widget-$id-prepare";
+ pipe.add(convert);
+ convert.link(element);
+ connected_device.link_source().link(convert);
+ element.set_locked_state(false);
+ plugin.unpause();
+ attached = true;
+ }
+
+ public void detach() {
+ if (element == null) return;
+ if (attached) {
+ if (connected_stream != null) {
+ connected_stream.remove_output(convert);
+ connected_stream = null;
+ }
+ if (connected_device != null) {
+ connected_device.link_source().unlink(element);
+ connected_device.unlink(); // We get a new ref to recover the element, so unlink twice
+ connected_device.unlink();
+ connected_device = null;
+ }
+ convert.set_locked_state(true);
+ convert.set_state(Gst.State.NULL);
+ pipe.remove(convert);
+ convert = null;
+ element.set_locked_state(true);
+ element.set_state(Gst.State.NULL);
+ pipe.remove(element);
+ attached = false;
+ }
+ }
+
+ public override void dispose() {
+ detach();
+ widget = null;
+ element = null;
+ }
+} \ No newline at end of file