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/*
* libjingle
* Copyright 2004 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_MEDIA_BASE_VIDEORENDERER_H_
#define TALK_MEDIA_BASE_VIDEORENDERER_H_
#if !defined(NDEBUG)
#include <string>
#endif
#include "webrtc/base/sigslot.h"
namespace cricket {
class VideoFrame;
// Abstract interface for rendering VideoFrames.
class VideoRenderer {
public:
virtual ~VideoRenderer() {}
// Called when the video has changed size. This is also used as an
// initialization method to set the UI size before any video frame
// rendered. webrtc::ExternalRenderer's FrameSizeChange will invoke this when
// it's called or later when a VideoRenderer is attached.
virtual bool SetSize(int width, int height, int reserved) = 0;
// Called when a new frame is available for display.
virtual bool RenderFrame(const VideoFrame *frame) = 0;
#if !defined(NDEBUG)
// Allow renderer dumping out rendered frames.
virtual bool SetDumpPath(const std::string &path) { return true; }
#endif
};
} // namespace cricket
#endif // TALK_MEDIA_BASE_VIDEORENDERER_H_
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