Media Capture Depth Stream Extensions API: videoKind settings and constraint.

content/common/media/media_stream_options.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_MEDIA_MEDIA_STREAM_OPTIONS_H_
 #define CONTENT_COMMON_MEDIA_MEDIA_STREAM_OPTIONS_H_
 
 #include <string>
 #include <vector>
 
 #include "content/common/content_export.h"
 #include "content/public/common/media_stream_request.h"
 
 namespace content {
 
 // Names for media stream source capture types.
 // These are values of the "TrackControls.stream_source" field, and are
 // set via the "chromeMediaSource" constraint.
 CONTENT_EXPORT extern const char kMediaStreamSourceTab[];
 CONTENT_EXPORT extern const char kMediaStreamSourceScreen[];
 CONTENT_EXPORT extern const char kMediaStreamSourceDesktop[];
 CONTENT_EXPORT extern const char kMediaStreamSourceSystem[];
 
+// The type of video stream. See https://w3c.github.io/mediacapture-depth.
+enum VideoKind {
+  VIDEO_KIND_NO_CONSTRAINT,

[Guido Urdaneta, 2017/02/07 10:26:04]

would VIDEO_KIND_NONE be better name?
At this point, it is no longer a constraint but a setting.

[aleksandar.stojiljkovic, 2017/02/07 11:33:49]

Done. I didn't like it's semantics when using it as constraint but your point is
valid.

+  VIDEO_KIND_COLOR,
+  VIDEO_KIND_DEPTH,
+  NUM_VIDEO_KINDS,
+};
+
 struct CONTENT_EXPORT TrackControls {
  public:
   TrackControls();
   explicit TrackControls(bool request);
   explicit TrackControls(const TrackControls& other);
   ~TrackControls();
   bool requested;
 
   // Source. This is "tab", "screen", "desktop", "system", or blank.
   // Consider replacing with MediaStreamType enum variables.
@@ skipping 13 matching lines @@
  public:
   StreamControls();
   StreamControls(bool request_audio, bool request_video);
   ~StreamControls();
   TrackControls audio;
   TrackControls video;
   // Hotword functionality (chromeos only)
   // See crbug.com/564574 for discussion on possibly #ifdef'ing this out.
   bool hotword_enabled;  // kMediaStreamAudioHotword = "googHotword";
   bool disable_local_echo;
+  // https://w3c.github.io/mediacapture-depth
+  VideoKind video_kind;
 };
 
 // StreamDeviceInfo describes information about a device.
 struct CONTENT_EXPORT StreamDeviceInfo {
   static const int kNoId;
 
   StreamDeviceInfo();
   StreamDeviceInfo(MediaStreamType service_param,
                    const std::string& name_param,
                    const std::string& device_param);
@@ skipping 10 matching lines @@
 
   // Id for this capture session. Unique for all sessions of the same type.
   int session_id;
 };
 
 typedef std::vector<StreamDeviceInfo> StreamDeviceInfoArray;
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_MEDIA_MEDIA_STREAM_OPTIONS_H_