| /* |
| * Copyright (c) 2012 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 MODULES_VIDEO_CODING_CODECS_I420_INCLUDE_I420_H_ |
| #define MODULES_VIDEO_CODING_CODECS_I420_INCLUDE_I420_H_ |
| |
| #include <vector> |
| |
| #include "modules/video_coding/include/video_codec_interface.h" |
| #include "rtc_base/checks.h" |
| #include "typedefs.h" // NOLINT(build/include) |
| |
| namespace webrtc { |
| |
| class I420Encoder : public VideoEncoder { |
| public: |
| I420Encoder(); |
| |
| virtual ~I420Encoder(); |
| |
| // Initialize the encoder with the information from the VideoCodec. |
| // |
| // Input: |
| // - codecSettings : Codec settings. |
| // - numberOfCores : Number of cores available for the encoder. |
| // - maxPayloadSize : The maximum size each payload is allowed |
| // to have. Usually MTU - overhead. |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK. |
| // <0 - Error |
| int InitEncode(const VideoCodec* codecSettings, |
| int /*numberOfCores*/, |
| size_t /*maxPayloadSize*/) override; |
| |
| // "Encode" an I420 image (as a part of a video stream). The encoded image |
| // will be returned to the user via the encode complete callback. |
| // |
| // Input: |
| // - inputImage : Image to be encoded. |
| // - codecSpecificInfo : Pointer to codec specific data. |
| // - frameType : Frame type to be sent (Key /Delta). |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK. |
| // <0 - Error |
| int Encode(const VideoFrame& inputImage, |
| const CodecSpecificInfo* /*codecSpecificInfo*/, |
| const std::vector<FrameType>* /*frame_types*/) override; |
| |
| // Register an encode complete callback object. |
| // |
| // Input: |
| // - callback : Callback object which handles encoded images. |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK, < 0 otherwise. |
| int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override; |
| |
| // Free encoder memory. |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK, < 0 otherwise. |
| int Release() override; |
| |
| int SetChannelParameters(uint32_t /*packetLoss*/, int64_t /*rtt*/) override { |
| return WEBRTC_VIDEO_CODEC_OK; |
| } |
| |
| private: |
| static uint8_t* InsertHeader(uint8_t* buffer, |
| uint16_t width, |
| uint16_t height); |
| |
| bool _inited; |
| EncodedImage _encodedImage; |
| EncodedImageCallback* _encodedCompleteCallback; |
| }; // class I420Encoder |
| |
| class I420Decoder : public VideoDecoder { |
| public: |
| I420Decoder(); |
| |
| virtual ~I420Decoder(); |
| |
| // Initialize the decoder. |
| // The user must notify the codec of width and height values. |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK. |
| // <0 - Errors |
| int InitDecode(const VideoCodec* codecSettings, |
| int /*numberOfCores*/) override; |
| |
| // Decode encoded image (as a part of a video stream). The decoded image |
| // will be returned to the user through the decode complete callback. |
| // |
| // Input: |
| // - inputImage : Encoded image to be decoded |
| // - missingFrames : True if one or more frames have been lost |
| // since the previous decode call. |
| // - codecSpecificInfo : pointer to specific codec data |
| // - renderTimeMs : Render time in Ms |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK |
| // <0 - Error |
| int Decode(const EncodedImage& inputImage, |
| bool missingFrames, |
| const CodecSpecificInfo* /*codecSpecificInfo*/, |
| int64_t /*renderTimeMs*/) override; |
| |
| // Register a decode complete callback object. |
| // |
| // Input: |
| // - callback : Callback object which handles decoded images. |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK, < 0 otherwise. |
| int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override; |
| |
| // Free decoder memory. |
| // |
| // Return value : WEBRTC_VIDEO_CODEC_OK if OK. |
| // <0 - Error |
| int Release() override; |
| |
| private: |
| static const uint8_t* ExtractHeader(const uint8_t* buffer, |
| uint16_t* width, |
| uint16_t* height); |
| |
| DecodedImageCallback* _decodeCompleteCallback; |
| }; // class I420Decoder |
| |
| } // namespace webrtc |
| |
| #endif // MODULES_VIDEO_CODING_CODECS_I420_INCLUDE_I420_H_ |