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 20 namespace webrtc { 21 22 class RTPFragmentationHeader; 23 // TODO(pbos): Expose these through a public (root) header or change these APIs. 24 struct CodecSpecificInfo; 25 struct VideoCodec; 26 27 class EncodedImageCallback { 28 public: ~EncodedImageCallback()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 39 class 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 ~VideoEncoder()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 SetPeriodicKeyFrames(bool enable)67 virtual int32_t SetPeriodicKeyFrames(bool enable) { return -1; } CodecConfigParameters(uint8_t *,int32_t)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