[Spice-devel] [PATCH spice-html5 3/4] Display: Implement change preferred video codec type message

[Pavel Grunt]

From: Tomáš Bohdálek <tom.bohdalek at gmail.com>

---
 display.js  | 16 ++++++++++++++++
 enums.js    | 10 ++++++++++
 spicemsg.js | 24 ++++++++++++++++++++++++
 3 files changed, 50 insertions(+)

diff --git a/display.js b/display.js
index 60c79b4..0868f91 100644
--- a/display.js
+++ b/display.js
@@ -1261,3 +1261,19 @@ SpiceDisplayConn.prototype.change_preferred_compression = function(compression_i
     msg.build_msg(SPICE_MSGC_DISPLAY_PREFERRED_COMPRESSION, compression);
     this.send_msg(msg);
 }
+
+SpiceDisplayConn.prototype.change_preferred_video_codec_type = function(video_codecs)
+{
+    var ch = this.channel_type();
+    if (!this.channel_test_capability(SPICE_DISPLAY_CAP_PREF_VIDEO_CODEC_TYPE))
+    {
+        this.log_warn(ch + " does not have capability to change the preferred video codec type");
+        return;
+    }
+
+    var msg = new SpiceMiniData();
+    var video_codec_type = new SpiceMsgcDisplayPreferredVideoCodecType(video_codecs);
+
+    msg.build_msg(SPICE_MSGC_DISPLAY_PREFERRED_VIDEO_CODEC_TYPE, video_codec_type);
+    this.send_msg(msg);
+}
diff --git a/enums.js b/enums.js
index b37cb20..b69bf3e 100644
--- a/enums.js
+++ b/enums.js
@@ -135,6 +135,8 @@ var SPICE_MSG_DISPLAY_STREAM_ACTIVATE_REPORT = 319;
 var SPICE_MSGC_DISPLAY_INIT             = 101;
 var SPICE_MSGC_DISPLAY_STREAM_REPORT    = 102;
 var SPICE_MSGC_DISPLAY_PREFERRED_COMPRESSION = 103;
+var SPICE_MSGC_DISPLAY_GL_DRAW_DONE     = 104;
+var SPICE_MSGC_DISPLAY_PREFERRED_VIDEO_CODEC_TYPE = 105;
 
 var SPICE_MSG_INPUTS_INIT               = 101;
 var SPICE_MSG_INPUTS_KEY_MODIFIERS      = 102;
@@ -197,6 +199,9 @@ var SPICE_DISPLAY_CAP_GL_SCANOUT          = 7;
 var SPICE_DISPLAY_CAP_MULTI_CODEC         = 8;
 var SPICE_DISPLAY_CAP_CODEC_MJPEG         = 9;
 var SPICE_DISPLAY_CAP_CODEC_VP8           = 10;
+var SPICE_DISPLAY_CAP_CODEC_H264          = 11;
+var SPICE_DISPLAY_CAP_PREF_VIDEO_CODEC_TYPE = 12;
+var SPICE_DISPLAY_CAP_CODEC_VP9           = 13;
 
 var SPICE_AUDIO_DATA_MODE_INVALID       = 0;
 var SPICE_AUDIO_DATA_MODE_RAW           = 1;
@@ -231,6 +236,11 @@ var SPICE_MOUSE_MODE_SERVER = (1 << 0),
 var SPICE_CLIP_TYPE_NONE            = 0;
 var SPICE_CLIP_TYPE_RECTS           = 1;
 
+var SPICE_VIDEO_CODEC_TYPE_MJPEG    = 1,
+    SPICE_VIDEO_CODEC_TYPE_VP8      = 2,
+    SPICE_VIDEO_CODEC_TYPE_H264     = 3,
+    SPICE_VIDEO_CODEC_TYPE_VP9      = 4;
+
 var SPICE_IMAGE_TYPE_BITMAP         = 0;
 var SPICE_IMAGE_TYPE_QUIC           = 1;
 var SPICE_IMAGE_TYPE_RESERVED       = 2;
diff --git a/spicemsg.js b/spicemsg.js
index 8a9eeed..dd684b7 100644
--- a/spicemsg.js
+++ b/spicemsg.js
@@ -1316,3 +1316,27 @@ SpiceMsgcDisplayPreferredCompression.prototype =
         return 1;
     }
 }
+
+function SpiceMsgcDisplayPreferredVideoCodecType(codecs)
+{
+    this.codecs = codecs;
+    this.num_of_codecs = codecs.length;
+}
+
+SpiceMsgcDisplayPreferredVideoCodecType.prototype =
+{
+    to_buffer: function(a, at)
+    {
+        at = at || 0;
+        var dv = new SpiceDataView(a);
+        dv.setUint8(at, this.num_of_codecs, true); at += 1;
+        for (var i = 0; i < this.codecs.length; i++)
+            dv.setUint8(at + i, this.codecs[i], true);
+        at += this.num_of_codecs;
+        return at;
+    },
+    buffer_size: function()
+    {
+        return this.num_of_codecs + 1;
+    }
+}
-- 
2.13.0