1/*
2 *  Copyright (c) 2014 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
11#ifndef WEBRTC_VIDEO_ENCODER_H_
12#define WEBRTC_VIDEO_ENCODER_H_
13
14#include <vector>
15
16#include "webrtc/common_types.h"
17#include "webrtc/typedefs.h"
18#include "webrtc/video_frame.h"
19
20namespace webrtc {
21
22class RTPFragmentationHeader;
23// TODO(pbos): Expose these through a public (root) header or change these APIs.
24struct CodecSpecificInfo;
25struct VideoCodec;
26
27class EncodedImageCallback {
28 public:
29  virtual ~EncodedImageCallback() {}
30
31  // Callback function which is called when an image has been encoded.
32  // TODO(pbos): Make encoded_image const or pointer. Remove default arguments.
33  virtual int32_t Encoded(
34      EncodedImage& encoded_image,
35      const CodecSpecificInfo* codec_specific_info = NULL,
36      const RTPFragmentationHeader* fragmentation = NULL) = 0;
37};
38
39class VideoEncoder {
40 public:
41  enum EncoderType {
42    kVp8,
43  };
44
45  static VideoEncoder* Create(EncoderType codec_type);
46
47  static VideoCodecVP8 GetDefaultVp8Settings();
48  static VideoCodecH264 GetDefaultH264Settings();
49
50  virtual ~VideoEncoder() {}
51
52  virtual int32_t InitEncode(const VideoCodec* codec_settings,
53                             int32_t number_of_cores,
54                             uint32_t max_payload_size) = 0;
55  virtual int32_t RegisterEncodeCompleteCallback(
56      EncodedImageCallback* callback) = 0;
57  virtual int32_t Release() = 0;
58
59
60  virtual int32_t Encode(const I420VideoFrame& frame,
61                         const CodecSpecificInfo* codec_specific_info,
62                         const std::vector<VideoFrameType>* frame_types) = 0;
63
64  virtual int32_t SetChannelParameters(uint32_t packet_loss, int rtt) = 0;
65  virtual int32_t SetRates(uint32_t bitrate, uint32_t framerate) = 0;
66
67  virtual int32_t SetPeriodicKeyFrames(bool enable) { return -1; }
68  virtual int32_t CodecConfigParameters(uint8_t* /*buffer*/, int32_t /*size*/) {
69    return -1;
70  }
71};
72
73}  // namespace webrtc
74#endif  // WEBRTC_VIDEO_ENCODER_H_
75