c69ae69d0b
BUG=1662 R=stefan@webrtc.org Review URL: https://webrtc-codereview.appspot.com/1546004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4167 4adac7df-926f-26a2-2b94-8c16560cd09d
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_COMMON_VIDEO_JPEG
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#define WEBRTC_COMMON_VIDEO_JPEG
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#include "webrtc/common_video/interface/i420_video_frame.h"
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#include "webrtc/common_video/interface/video_image.h" // EncodedImage
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#include "webrtc/typedefs.h"
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// jpeg forward declaration
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struct jpeg_compress_struct;
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namespace webrtc
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{
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// TODO(mikhal): Move this to LibYuv wrapper, when LibYuv will have a JPG
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// Encode.
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class JpegEncoder
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{
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public:
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JpegEncoder();
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~JpegEncoder();
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// SetFileName
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// Input:
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// - fileName - Pointer to input vector (should be less than 256) to which the
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// compressed file will be written to
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// Output:
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// - 0 : OK
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// - (-1) : Error
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int32_t SetFileName(const char* fileName);
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// Encode an I420 image. The encoded image is saved to a file
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//
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// Input:
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// - inputImage : Image to be encoded
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//
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// Output:
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// - 0 : OK
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// - (-1) : Error
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int32_t Encode(const I420VideoFrame& inputImage);
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private:
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jpeg_compress_struct* _cinfo;
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char _fileName[257];
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};
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// Decodes a JPEG-stream
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// Supports 1 image component. 3 interleaved image components,
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// YCbCr sub-sampling 4:4:4, 4:2:2, 4:2:0.
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//
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// Input:
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// - input_image : encoded image to be decoded.
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// - output_image : VideoFrame to store decoded output.
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//
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// Output:
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// - 0 : OK
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// - (-1) : Error
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// - (-2) : Unsupported format
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int ConvertJpegToI420(const EncodedImage& input_image,
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I420VideoFrame* output_image);
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}
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#endif /* WEBRTC_COMMON_VIDEO_JPEG */
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