Index: media/video/capture/video_capture_types.h |
diff --git a/media/video/capture/video_capture_types.h b/media/video/capture/video_capture_types.h |
index a791b4e9eb4e9ff498993e55ead2323f8f05d903..ec57c451372831580b5476befa53d4acf6398982 100644 |
--- a/media/video/capture/video_capture_types.h |
+++ b/media/video/capture/video_capture_types.h |
@@ -31,6 +31,23 @@ enum VideoPixelFormat { |
PIXEL_FORMAT_MAX, |
}; |
+// Policies for capture devices that has source content with dynamic resolution. |
+enum ResolutionChangePolicy { |
+ // Capture device outputs a fixed resolution all the time. The resolution of |
+ // the first frame is the resolution for all frames. |
+ // It is implementation specific for the capture device to scale, letter-box |
+ // and pillar-box. The only gurantee is that resolution will never change. |
+ RESOLUTION_POLICY_FIXED, |
+ |
+ // Capture device outputs frames with dynamic resolution. The width and height |
+ // will not exceed the maximum dimensions specified. The typical scenario is |
+ // the frames will have the same aspect ratio as the original content and |
+ // scaled down to fit inside the limit. |
+ RESOLUTION_POLICY_DYNAMIC_WITHIN_LIMIT, |
+ |
+ RESOLUTION_POLICY_LAST, |
+}; |
+ |
// Some drivers use rational time per frame instead of float frame rate, this |
// constant k is used to convert between both: A fps -> [k/k*A] seconds/frame. |
const int kFrameRatePrecision = 10000; |
@@ -71,8 +88,8 @@ class MEDIA_EXPORT VideoCaptureParams { |
// Requests a resolution and format at which the capture will occur. |
VideoCaptureFormat requested_format; |
- // Allow mid-capture resolution change. |
- bool allow_resolution_change; |
+ // Policy for resolution change. |
+ ResolutionChangePolicy resolution_change_policy; |
}; |
} // namespace media |