src/video_engine/vie_codec_impl.h

/*
 *  Copyright (c) 2011 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 WEBRTC_VIDEO_ENGINE_VIE_CODEC_IMPL_H_
#define WEBRTC_VIDEO_ENGINE_VIE_CODEC_IMPL_H_

#include "typedefs.h"
#include "video_engine/include/vie_codec.h"
#include "video_engine/vie_defines.h"
#include "video_engine/vie_ref_count.h"
#include "video_engine/vie_shared_data.h"

namespace webrtc {

class ViECodecImpl
    : public virtual ViESharedData,
      public ViECodec,
      public ViERefCount {
 public:
  virtual int Release();

  // Implements ViECodec.
  virtual int NumberOfCodecs() const;
  virtual int GetCodec(const unsigned char list_number,
                       VideoCodec& video_codec) const;
  virtual int SetSendCodec(const int video_channel,
                           const VideoCodec& video_codec);
  virtual int GetSendCodec(const int video_channel,
                           VideoCodec& video_codec) const;
  virtual int SetReceiveCodec(const int video_channel,
                              const VideoCodec& video_codec);
  virtual int GetReceiveCodec(const int video_channel,
                              VideoCodec& video_codec) const;
  virtual int GetCodecConfigParameters(
    const int video_channel,
    unsigned char config_parameters[kConfigParameterSize],
    unsigned char& config_parameters_size) const;
  virtual int SetImageScaleStatus(const int video_channel, const bool enable);
  virtual int GetSendCodecStastistics(const int video_channel,
                                      unsigned int& key_frames,
                                      unsigned int& delta_frames) const;
  virtual int GetReceiveCodecStastistics(const int video_channel,
                                         unsigned int& key_frames,
                                         unsigned int& delta_frames) const;
  virtual unsigned int GetDiscardedPackets(const int video_channel) const;
  virtual int SetKeyFrameRequestCallbackStatus(const int video_channel,
                                               const bool enable);
  virtual int SetSignalKeyPacketLossStatus(const int video_channel,
                                           const bool enable,
                                           const bool only_key_frames = false);
  virtual int RegisterEncoderObserver(const int video_channel,
                                      ViEEncoderObserver& observer);
  virtual int DeregisterEncoderObserver(const int video_channel);
  virtual int RegisterDecoderObserver(const int video_channel,
                                      ViEDecoderObserver& observer);
  virtual int DeregisterDecoderObserver(const int video_channel);
  virtual int SendKeyFrame(const int video_channel);
  virtual int WaitForFirstKeyFrame(const int video_channel, const bool wait);

 protected:
  ViECodecImpl();
  virtual ~ViECodecImpl();

 private:
  bool CodecValid(const VideoCodec& video_codec);
};

}  // namespace webrtc

#endif  // WEBRTC_VIDEO_ENGINE_VIE_CODEC_IMPL_H_