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

content/renderer/media/media_stream_video_track.h

 // Copyright 2013 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_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_TRACK_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_TRACK_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "content/common/content_export.h"
 #include "content/public/renderer/media_stream_video_sink.h"
 #include "content/renderer/media/media_stream_track.h"
 #include "content/renderer/media/media_stream_video_source.h"
 #include "content/renderer/media/secure_display_link_tracker.h"
+#include "media/capture/video_capture_types.h"
+#include "third_party/WebKit/public/platform/WebString.h"
 
 namespace content {
 
+// VideoKind enum values. https://w3c.github.io/mediacapture-depth.

[Guido Urdaneta, 2017/02/10 12:45:21]

These are used only here and in media_stream_constraints_util_video_source
files.

Since this is more a utility than a MediaStreamVideoTrack-specific thing, I
would prefer that you move this to media_stream_constraints_util_video_source.*

[aleksandar.stojiljkovic, 2017/02/10 15:06:51]

String constants removed. It is not needed to have them in header anymore.
However, left the GetVideoKindForFormat here - it is used in
media_stream_video_track.cc (settings), media_stream_video_source (filter
formats by constraint) and media_stream_constraints_util_video_source.cc.

+CONTENT_EXPORT extern const char kVideoKindColor[];
+CONTENT_EXPORT extern const char kVideoKindDepth[];
+
+// Calculates and returns videoKind value for |format|.
+blink::WebString CONTENT_EXPORT
+GetVideoKindForFormat(const media::VideoCaptureFormat& format);
+
 // MediaStreamVideoTrack is a video specific representation of a
 // blink::WebMediaStreamTrack in content. It is owned by the blink object
 // and can be retrieved from a blink object using
 // WebMediaStreamTrack::getExtraData() or MediaStreamVideoTrack::GetVideoTrack.
 class CONTENT_EXPORT MediaStreamVideoTrack : public MediaStreamTrack {
  public:
   // Help method to create a blink::WebMediaStreamTrack and a
   // MediaStreamVideoTrack instance. The MediaStreamVideoTrack object is owned
   // by the blink object in its WebMediaStreamTrack::ExtraData member.
   // |callback| is triggered if the track is added to the source
@@ skipping 62 matching lines @@
 
   // This is used for tracking if all connected video sinks are secure.
   SecureDisplayLinkTracker<MediaStreamVideoSink> secure_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoTrack);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_TRACK_H_