1 /* 2 * libjingle 3 * Copyright 2004 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_MEDIA_BASE_VIDEOPROCESSOR_H_ 29 #define TALK_MEDIA_BASE_VIDEOPROCESSOR_H_ 30 31 #include "talk/base/sigslot.h" 32 #include "talk/media/base/videoframe.h" 33 34 namespace cricket { 35 36 class VideoProcessor : public sigslot::has_slots<> { 37 public: 38 virtual ~VideoProcessor() {} 39 // Contents of frame may be manipulated by the processor. 40 // The processed data is expected to be the same size as the 41 // original data. VideoProcessors may be chained together and may decide 42 // that the current frame should be dropped. If *drop_frame is true, 43 // the current processor should skip processing. If the current processor 44 // decides it cannot process the current frame in a timely manner, it may set 45 // *drop_frame = true and the frame will be dropped. 46 virtual void OnFrame(uint32 ssrc, VideoFrame* frame, bool* drop_frame) = 0; 47 }; 48 49 } // namespace cricket 50 #endif // TALK_MEDIA_BASE_VIDEOPROCESSOR_H_ 51
