src/third_party/webrtc/video_engine/test/libvietest/include/vie_external_render_filter.h

   1 /*
   2  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10 #ifndef WEBRTC_VIDEO_ENGINE_TEST_LIBVIETEST_INCLUDE_VIE_EXTERNAL_RENDER_H_
  11 #define WEBRTC_VIDEO_ENGINE_TEST_LIBVIETEST_INCLUDE_VIE_EXTERNAL_RENDER_H_
  12
  13 #include "webrtc/system_wrappers/interface/tick_util.h"
  14 #include "webrtc/video_engine/include/vie_render.h"
  15
  16 namespace webrtc {
  17
  18 // A render filter which passes frames directly to an external renderer. This
  19 // is different from plugging the external renderer directly into the sending
  20 // side since this will only run on frames that actually get sent and not on
  21 // frames that only get captured.
  22 class ExternalRendererEffectFilter : public webrtc::ViEEffectFilter {
  23  public:
  24   explicit ExternalRendererEffectFilter(webrtc::ExternalRenderer* renderer)
  25       : width_(0), height_(0), renderer_(renderer) {}
  26   virtual ~ExternalRendererEffectFilter() {}
  27   virtual int Transform(int size,
  28                         unsigned char* frame_buffer,
  29                         int64_t ntp_time_ms,
  30                         unsigned int timestamp,
  31                         unsigned int width,
  32                         unsigned int height) {
  33     if (width != width_ || height_ != height) {
  34       renderer_->FrameSizeChange(width, height, 1);
  35       width_ = width;
  36       height_ = height;
  37     }
  38     return renderer_->DeliverFrame(frame_buffer,
  39                                    size,
  40                                    ntp_time_ms,
  41                                    timestamp,
  42                                    webrtc::TickTime::MillisecondTimestamp(),
  43                                    NULL);
  44   }
  45
  46  private:
  47   unsigned int width_;
  48   unsigned int height_;
  49   webrtc::ExternalRenderer* renderer_;
  50 };
  51
  52 }  // namespace webrtc
  53
  54 #endif  // WEBRTC_VIDEO_ENGINE_TEST_LIBVIETEST_INCLUDE_VIE_EXTERNAL_RENDER_H_