Move videosourceinterface to api.
VideoSourceInterface is clearly an integral part of
mediastreaminterface.h already, so moving that interface to api makes
sense. This also resolves a circular dependency in call/.
Bug: webrc:6828
Change-Id: Ic1862f118363b0b55a235a9c0c35d9adc647184c
Reviewed-on: https://webrtc-review.googlesource.com/37500
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Commit-Queue: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21498}diff --git a/api/videosourceinterface.h b/api/videosourceinterface.h
new file mode 100644
index 0000000..ffb017a
--- /dev/null
+++ b/api/videosourceinterface.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef API_VIDEOSOURCEINTERFACE_H_
+#define API_VIDEOSOURCEINTERFACE_H_
+
+#include <limits>
+
+#include "api/optional.h"
+#include "api/videosinkinterface.h"
+
+namespace rtc {
+
+// VideoSinkWants is used for notifying the source of properties a video frame
+// should have when it is delivered to a certain sink.
+struct VideoSinkWants {
+ VideoSinkWants();
+ ~VideoSinkWants();
+ // Tells the source whether the sink wants frames with rotation applied.
+ // By default, any rotation must be applied by the sink.
+ bool rotation_applied = false;
+
+ // Tells the source that the sink only wants black frames.
+ bool black_frames = false;
+
+ // Tells the source the maximum number of pixels the sink wants.
+ int max_pixel_count = std::numeric_limits<int>::max();
+ // Tells the source the desired number of pixels the sinks wants. This will
+ // typically be used when stepping the resolution up again when conditions
+ // have improved after an earlier downgrade. The source should select the
+ // closest resolution to this pixel count, but if max_pixel_count is set, it
+ // still sets the absolute upper bound.
+ rtc::Optional<int> target_pixel_count;
+ // Tells the source the maximum framerate the sink wants.
+ int max_framerate_fps = std::numeric_limits<int>::max();
+};
+
+template <typename VideoFrameT>
+class VideoSourceInterface {
+ public:
+ virtual void AddOrUpdateSink(VideoSinkInterface<VideoFrameT>* sink,
+ const VideoSinkWants& wants) = 0;
+ // RemoveSink must guarantee that at the time the method returns,
+ // there is no current and no future calls to VideoSinkInterface::OnFrame.
+ virtual void RemoveSink(VideoSinkInterface<VideoFrameT>* sink) = 0;
+
+ protected:
+ virtual ~VideoSourceInterface() {}
+};
+
+} // namespace rtc
+#endif // API_VIDEOSOURCEINTERFACE_H_