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
70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Interface to the LibYuv scaling functionality
|
|
*/
|
|
|
|
#ifndef WEBRTC_COMMON_VIDEO_LIBYUV_INCLUDE_SCALER_H_
|
|
#define WEBRTC_COMMON_VIDEO_LIBYUV_INCLUDE_SCALER_H_
|
|
|
|
#include "webrtc/common_video/interface/i420_video_frame.h"
|
|
#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
|
|
#include "webrtc/typedefs.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// Supported scaling types
|
|
enum ScaleMethod {
|
|
kScalePoint, // no interpolation
|
|
kScaleBilinear,
|
|
kScaleBox
|
|
};
|
|
|
|
class Scaler {
|
|
public:
|
|
Scaler();
|
|
~Scaler();
|
|
|
|
// Set interpolation properties:
|
|
//
|
|
// Return value: 0 - OK
|
|
// -1 - parameter error
|
|
int Set(int src_width, int src_height,
|
|
int dst_width, int dst_height,
|
|
VideoType src_video_type, VideoType dst_video_type,
|
|
ScaleMethod method);
|
|
|
|
// Scale frame
|
|
// Memory is allocated by user. If dst_frame is not of sufficient size,
|
|
// the frame will be reallocated to the appropriate size.
|
|
// Return value: 0 - OK,
|
|
// -1 - parameter error
|
|
// -2 - scaler not set
|
|
int Scale(const I420VideoFrame& src_frame,
|
|
I420VideoFrame* dst_frame);
|
|
|
|
private:
|
|
// Determine if the VideoTypes are currently supported.
|
|
bool SupportedVideoType(VideoType src_video_type,
|
|
VideoType dst_video_type);
|
|
|
|
ScaleMethod method_;
|
|
int src_width_;
|
|
int src_height_;
|
|
int dst_width_;
|
|
int dst_height_;
|
|
bool set_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_COMMON_VIDEO_LIBYUV_INCLUDE_SCALER_H_
|