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1 /* | |
2 * Copyright (c) 2015 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 | |
12 #ifndef WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_ENCODER_IMPL_H_ | |
13 #define WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_ENCODER_IMPL_H_ | |
14 | |
15 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h" | |
16 | |
17 #include <vector> | |
18 | |
19 class ISVCEncoder; | |
20 | |
21 namespace webrtc { | |
22 | |
23 class H264EncoderImpl : public H264Encoder { | |
24 public: | |
25 // Copies |encoded_image._buffer| data with NAL headers excluded to | |
26 // |enc_buffer_with_nal|, inserting missing NAL headers between each fragment | |
27 // based on |frag_header|. RTPFragmentize in .cc documents why you might want | |
28 // to do this. |enc_buffer_with_nal_length| must be at least | |
29 // RTPDefragmentizeBufferLengthWithNAL(encoded_image, frag_header). | |
30 static void RTPDefragmentize( | |
stefan-webrtc
2015/09/28 11:19:02
RtpDefragmentize
hbos
2015/09/30 15:35:19
(Removed, no longer needed due to including start
| |
31 const EncodedImage& encoded_image, | |
32 const RTPFragmentationHeader* frag_header, | |
33 uint8_t* enc_buffer_with_nal, size_t enc_buffer_with_nal_length); | |
34 static size_t RTPDefragmentizeBufferLengthWithNAL( | |
35 const EncodedImage& encoded_image, | |
36 const webrtc::RTPFragmentationHeader* frag_header); | |
37 | |
38 H264EncoderImpl(); | |
39 ~H264EncoderImpl() override; | |
40 | |
41 // |number_of_cores| and |max_payload_size| are ignored. | |
42 // The following members of |codec_settings| are used. The rest are ignored. | |
43 // - codecType (must be kVideoCodecH264) | |
44 // - targetBitrate | |
45 // - maxFramerate | |
46 // - width | |
47 // - height | |
48 int32_t InitEncode(const VideoCodec* codec_settings, | |
49 int32_t /*number_of_cores*/, | |
50 size_t /*max_payload_size*/) override; | |
51 int32_t Release() override; | |
52 | |
53 int32_t RegisterEncodeCompleteCallback( | |
54 EncodedImageCallback* callback) override; | |
55 int32_t SetRates(uint32_t bitrate, uint32_t framerate) override; | |
56 | |
57 // The result of encoding - an EncodedImage and RTPFragmentationHeader - are | |
58 // passed to the encode complete callback. The encoded image data has had its | |
59 // NAL headers removed. In order to be able to decode this data with an | |
60 // H264Decoder, the NAL headers need to be re-inserted, see RTPFragmentize in | |
61 // .cc and RTPDefragmentize for more information. | |
62 int32_t Encode(const VideoFrame& frame, | |
63 const CodecSpecificInfo* codec_specific_info, | |
64 const std::vector<VideoFrameType>* frame_types) override; | |
65 | |
66 bool IsInitialized(); | |
67 | |
68 // Unsupported / Do nothing. | |
69 int32_t SetChannelParameters(uint32_t packet_loss, int64_t rtt) override; | |
70 int32_t SetPeriodicKeyFrames(bool enable) override; | |
71 int32_t CodecConfigParameters(uint8_t* buffer, int32_t size) override; | |
72 void OnDroppedFrame() override; | |
73 | |
74 private: | |
75 ISVCEncoder* openh264_encoder_; | |
76 VideoCodec codec_settings_; | |
77 | |
78 EncodedImage encoded_image_; | |
79 EncodedImageCallback* encoded_image_callback_; | |
80 }; | |
81 | |
82 } // namespace webrtc | |
83 | |
84 #endif // WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_ENCODER_IMPL_H_ | |
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