9fedff7c17
Review URL: https://webrtc-codereview.appspot.com/922004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@2983 4adac7df-926f-26a2-2b94-8c16560cd09d
126 lines
3.7 KiB
C++
126 lines
3.7 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 COMMON_VIDEO_INTERFACE_I420_VIDEO_FRAME_H
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#define COMMON_VIDEO_INTERFACE_I420_VIDEO_FRAME_H
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// I420VideoFrame class
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//
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// Storing and handling of YUV (I420) video frames.
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#include "common_video/plane.h"
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#include "typedefs.h" //NOLINT
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namespace webrtc {
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enum PlaneType {
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kYPlane = 0,
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kUPlane = 1,
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kVPlane = 2,
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kNumOfPlanes = 3
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};
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class I420VideoFrame {
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public:
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I420VideoFrame();
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~I420VideoFrame();
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// CreateEmptyFrame: Sets frame dimensions and allocates buffers based
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// on set dimensions - height and plane stride.
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// If required size is bigger than the allocated one, new buffers of adequate
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// size will be allocated.
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// Return value: 0 on success ,-1 on error.
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int CreateEmptyFrame(int width, int height,
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int stride_y, int stride_u, int stride_v);
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// CreateFrame: Sets the frame's members and buffers. If required size is
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// bigger than allocated one, new buffers of adequate size will be allocated.
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// Return value: 0 on success ,-1 on error.
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int CreateFrame(int size_y, const uint8_t* buffer_y,
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int size_u, const uint8_t* buffer_u,
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int size_v, const uint8_t* buffer_v,
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int width, int height,
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int stride_y, int stride_u, int stride_v);
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// Copy frame: If required size is bigger than allocated one, new buffers of
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// adequate size will be allocated.
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// Return value: 0 on success ,-1 on error.
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int CopyFrame(const I420VideoFrame& videoFrame);
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// Swap Frame.
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void SwapFrame(I420VideoFrame* videoFrame);
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// Get pointer to buffer per plane.
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uint8_t* buffer(PlaneType type);
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// Overloading with const.
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const uint8_t* buffer(PlaneType type) const;
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// Get allocated size per plane.
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int allocated_size(PlaneType type) const;
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// Get allocated stride per plane.
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int stride(PlaneType type) const;
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// Set frame width.
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int set_width(int width);
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// Set frame height.
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int set_height(int height);
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// Get frame width.
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int width() const {return width_;}
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// Get frame height.
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int height() const {return height_;}
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// Set frame timestamp (90kHz).
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void set_timestamp(const uint32_t timestamp) {timestamp_ = timestamp;}
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// Get frame timestamp (90kHz).
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uint32_t timestamp() const {return timestamp_;}
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// Set render time in miliseconds.
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void set_render_time_ms(int64_t render_time_ms) {render_time_ms_ =
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render_time_ms;}
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// Get render time in miliseconds.
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int64_t render_time_ms() const {return render_time_ms_;}
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// Return true if underlying plane buffers are of zero size, false if not.
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bool IsZeroSize() const;
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// Reset underlying plane buffers sizes to 0. This function doesn't
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// clear memory.
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void ResetSize();
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private:
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// Verifies legality of parameters.
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// Return value: 0 on success ,-1 on error.
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int CheckDimensions(int width, int height,
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int stride_y, int stride_u, int stride_v);
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// Get the pointer to a specific plane.
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const Plane* GetPlane(PlaneType type) const;
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// Overloading with non-const.
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Plane* GetPlane(PlaneType type);
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Plane y_plane_;
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Plane u_plane_;
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Plane v_plane_;
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int width_;
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int height_;
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uint32_t timestamp_;
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int64_t render_time_ms_;
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}; // I420VideoFrame
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} // namespace webrtc
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#endif // COMMON_VIDEO_INTERFACE_I420_VIDEO_FRAME_H
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