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Diffstat (limited to 'webrtc/common_video/interface/video_frame_buffer.h')
-rw-r--r-- | webrtc/common_video/interface/video_frame_buffer.h | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/webrtc/common_video/interface/video_frame_buffer.h b/webrtc/common_video/interface/video_frame_buffer.h deleted file mode 100644 index 1062165b81..0000000000 --- a/webrtc/common_video/interface/video_frame_buffer.h +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Copyright (c) 2015 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 WEBRTC_VIDEO_FRAME_BUFFER_H_ -#define WEBRTC_VIDEO_FRAME_BUFFER_H_ - -#include "webrtc/base/callback.h" -#include "webrtc/base/refcount.h" -#include "webrtc/base/scoped_ptr.h" -#include "webrtc/base/scoped_ref_ptr.h" -#include "webrtc/system_wrappers/include/aligned_malloc.h" - -namespace webrtc { - -enum PlaneType { - kYPlane = 0, - kUPlane = 1, - kVPlane = 2, - kNumOfPlanes = 3, -}; - -// Interface of a simple frame buffer containing pixel data. This interface does -// not contain any frame metadata such as rotation, timestamp, pixel_width, etc. -class VideoFrameBuffer : public rtc::RefCountInterface { - public: - // Returns true if this buffer has a single exclusive owner. - virtual bool HasOneRef() const = 0; - - // The resolution of the frame in pixels. For formats where some planes are - // subsampled, this is the highest-resolution plane. - virtual int width() const = 0; - virtual int height() const = 0; - - // Returns pointer to the pixel data for a given plane. The memory is owned by - // the VideoFrameBuffer object and must not be freed by the caller. - virtual const uint8_t* data(PlaneType type) const = 0; - - // Non-const data access is disallowed by default. You need to make sure you - // have exclusive access and a writable buffer before calling this function. - virtual uint8_t* MutableData(PlaneType type); - - // Returns the number of bytes between successive rows for a given plane. - virtual int stride(PlaneType type) const = 0; - - // Return the handle of the underlying video frame. This is used when the - // frame is backed by a texture. - virtual void* native_handle() const = 0; - - // Returns a new memory-backed frame buffer converted from this buffer's - // native handle. - virtual rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() = 0; - - protected: - virtual ~VideoFrameBuffer(); -}; - -// Plain I420 buffer in standard memory. -class I420Buffer : public VideoFrameBuffer { - public: - I420Buffer(int width, int height); - I420Buffer(int width, int height, int stride_y, int stride_u, int stride_v); - - int width() const override; - int height() const override; - const uint8_t* data(PlaneType type) const override; - // Non-const data access is only allowed if HasOneRef() is true to protect - // against unexpected overwrites. - uint8_t* MutableData(PlaneType type) override; - int stride(PlaneType type) const override; - void* native_handle() const override; - rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override; - - protected: - ~I420Buffer() override; - - private: - const int width_; - const int height_; - const int stride_y_; - const int stride_u_; - const int stride_v_; - const rtc::scoped_ptr<uint8_t, AlignedFreeDeleter> data_; -}; - -// Base class for native-handle buffer is a wrapper around a |native_handle|. -// This is used for convenience as most native-handle implementations can share -// many VideoFrame implementations, but need to implement a few others (such -// as their own destructors or conversion methods back to software I420). -class NativeHandleBuffer : public VideoFrameBuffer { - public: - NativeHandleBuffer(void* native_handle, int width, int height); - - int width() const override; - int height() const override; - const uint8_t* data(PlaneType type) const override; - int stride(PlaneType type) const override; - void* native_handle() const override; - - protected: - void* native_handle_; - const int width_; - const int height_; -}; - -class WrappedI420Buffer : public webrtc::VideoFrameBuffer { - public: - WrappedI420Buffer(int width, - int height, - const uint8_t* y_plane, - int y_stride, - const uint8_t* u_plane, - int u_stride, - const uint8_t* v_plane, - int v_stride, - const rtc::Callback0<void>& no_longer_used); - int width() const override; - int height() const override; - - const uint8_t* data(PlaneType type) const override; - - int stride(PlaneType type) const override; - void* native_handle() const override; - - rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override; - - private: - friend class rtc::RefCountedObject<WrappedI420Buffer>; - ~WrappedI420Buffer() override; - - const int width_; - const int height_; - const uint8_t* const y_plane_; - const uint8_t* const u_plane_; - const uint8_t* const v_plane_; - const int y_stride_; - const int u_stride_; - const int v_stride_; - rtc::Callback0<void> no_longer_used_cb_; -}; - -// Helper function to crop |buffer| without making a deep copy. May only be used -// for non-native frames. -rtc::scoped_refptr<VideoFrameBuffer> ShallowCenterCrop( - const rtc::scoped_refptr<VideoFrameBuffer>& buffer, - int cropped_width, - int cropped_height); - -} // namespace webrtc - -#endif // WEBRTC_VIDEO_FRAME_BUFFER_H_ |