webrtc/common_video/i420_video_frame_unittest.cc - src - Git at Google

 /*
  *  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.
  */

 #include "webrtc/video_frame.h"

 #include <math.h>
 #include <string.h>

 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/base/bind.h"
 #include "webrtc/base/scoped_ptr.h"

 namespace webrtc {

 class NativeHandleImpl {
  public:
   NativeHandleImpl() : no_longer_needed_(false) {}
   virtual ~NativeHandleImpl() {}
   bool no_longer_needed() const { return no_longer_needed_; }
   void SetNoLongerNeeded() { no_longer_needed_ = true; }

  private:
   bool no_longer_needed_;
 };

 bool EqualPlane(const uint8_t* data1,
                 const uint8_t* data2,
                 int stride,
                 int width,
                 int height);
 bool EqualFrames(const VideoFrame& frame1, const VideoFrame& frame2);
 bool EqualTextureFrames(const VideoFrame& frame1, const VideoFrame& frame2);
 int ExpectedSize(int plane_stride, int image_height, PlaneType type);

 TEST(TestVideoFrame, InitialValues) {
   VideoFrame frame;
   EXPECT_TRUE(frame.IsZeroSize());
   EXPECT_EQ(kVideoRotation_0, frame.rotation());
 }

 TEST(TestVideoFrame, CopiesInitialFrameWithoutCrashing) {
   VideoFrame frame;
   VideoFrame frame2;
   frame2.CopyFrame(frame);
 }

 TEST(TestVideoFrame, WidthHeightValues) {
   VideoFrame frame;
   const int valid_value = 10;
   EXPECT_EQ(0, frame.CreateEmptyFrame(10, 10, 10, 14, 90));
   EXPECT_EQ(valid_value, frame.width());
   EXPECT_EQ(valid_value, frame.height());
   frame.set_timestamp(123u);
   EXPECT_EQ(123u, frame.timestamp());
   frame.set_ntp_time_ms(456);
   EXPECT_EQ(456, frame.ntp_time_ms());
   frame.set_render_time_ms(789);
   EXPECT_EQ(789, frame.render_time_ms());
 }

 TEST(TestVideoFrame, SizeAllocation) {
   VideoFrame frame;
   EXPECT_EQ(0, frame. CreateEmptyFrame(10, 10, 12, 14, 220));
   int height = frame.height();
   int stride_y = frame.stride(kYPlane);
   int stride_u = frame.stride(kUPlane);
   int stride_v = frame.stride(kVPlane);
   // Verify that allocated size was computed correctly.
   EXPECT_EQ(ExpectedSize(stride_y, height, kYPlane),
             frame.allocated_size(kYPlane));
   EXPECT_EQ(ExpectedSize(stride_u, height, kUPlane),
             frame.allocated_size(kUPlane));
   EXPECT_EQ(ExpectedSize(stride_v, height, kVPlane),
             frame.allocated_size(kVPlane));
 }

 TEST(TestVideoFrame, CopyFrame) {
   uint32_t timestamp = 1;
   int64_t ntp_time_ms = 2;
   int64_t render_time_ms = 3;
   int stride_y = 15;
   int stride_u = 10;
   int stride_v = 10;
   int width = 15;
   int height = 15;
   // Copy frame.
   VideoFrame small_frame;
   EXPECT_EQ(0, small_frame.CreateEmptyFrame(width, height,
                                             stride_y, stride_u, stride_v));
   small_frame.set_timestamp(timestamp);
   small_frame.set_ntp_time_ms(ntp_time_ms);
   small_frame.set_render_time_ms(render_time_ms);
   const int kSizeY = 400;
   const int kSizeU = 100;
   const int kSizeV = 100;
   const VideoRotation kRotation = kVideoRotation_270;
   uint8_t buffer_y[kSizeY];
   uint8_t buffer_u[kSizeU];
   uint8_t buffer_v[kSizeV];
   memset(buffer_y, 16, kSizeY);
   memset(buffer_u, 8, kSizeU);
   memset(buffer_v, 4, kSizeV);
   VideoFrame big_frame;
   EXPECT_EQ(0,
             big_frame.CreateFrame(buffer_y, buffer_u, buffer_v,
                                   width + 5, height + 5, stride_y + 5,
                                   stride_u, stride_v, kRotation));
   // Frame of smaller dimensions.
   EXPECT_EQ(0, small_frame.CopyFrame(big_frame));
   EXPECT_TRUE(EqualFrames(small_frame, big_frame));
   EXPECT_EQ(kRotation, small_frame.rotation());

   // Frame of larger dimensions.
   EXPECT_EQ(0, small_frame.CreateEmptyFrame(width, height,
                                             stride_y, stride_u, stride_v));
   memset(small_frame.buffer(kYPlane), 1, small_frame.allocated_size(kYPlane));
   memset(small_frame.buffer(kUPlane), 2, small_frame.allocated_size(kUPlane));
   memset(small_frame.buffer(kVPlane), 3, small_frame.allocated_size(kVPlane));
   EXPECT_EQ(0, big_frame.CopyFrame(small_frame));
   EXPECT_TRUE(EqualFrames(small_frame, big_frame));
 }

 TEST(TestVideoFrame, ShallowCopy) {
   uint32_t timestamp = 1;
   int64_t ntp_time_ms = 2;
   int64_t render_time_ms = 3;
   int stride_y = 15;
   int stride_u = 10;
   int stride_v = 10;
   int width = 15;
   int height = 15;

   const int kSizeY = 400;
   const int kSizeU = 100;
   const int kSizeV = 100;
   const VideoRotation kRotation = kVideoRotation_270;
   uint8_t buffer_y[kSizeY];
   uint8_t buffer_u[kSizeU];
   uint8_t buffer_v[kSizeV];
   memset(buffer_y, 16, kSizeY);
   memset(buffer_u, 8, kSizeU);
   memset(buffer_v, 4, kSizeV);
   VideoFrame frame1;
   EXPECT_EQ(0, frame1.CreateFrame(buffer_y, buffer_u, buffer_v, width, height,
                                   stride_y, stride_u, stride_v, kRotation));
   frame1.set_timestamp(timestamp);
   frame1.set_ntp_time_ms(ntp_time_ms);
   frame1.set_render_time_ms(render_time_ms);
   VideoFrame frame2;
   frame2.ShallowCopy(frame1);

   // To be able to access the buffers, we need const pointers to the frames.
   const VideoFrame* const_frame1_ptr = &frame1;
   const VideoFrame* const_frame2_ptr = &frame2;

   EXPECT_TRUE(const_frame1_ptr->buffer(kYPlane) ==
               const_frame2_ptr->buffer(kYPlane));
   EXPECT_TRUE(const_frame1_ptr->buffer(kUPlane) ==
               const_frame2_ptr->buffer(kUPlane));
   EXPECT_TRUE(const_frame1_ptr->buffer(kVPlane) ==
               const_frame2_ptr->buffer(kVPlane));

   EXPECT_EQ(frame2.timestamp(), frame1.timestamp());
   EXPECT_EQ(frame2.ntp_time_ms(), frame1.ntp_time_ms());
   EXPECT_EQ(frame2.render_time_ms(), frame1.render_time_ms());
   EXPECT_EQ(frame2.rotation(), frame1.rotation());

   frame2.set_timestamp(timestamp + 1);
   frame2.set_ntp_time_ms(ntp_time_ms + 1);
   frame2.set_render_time_ms(render_time_ms + 1);
   frame2.set_rotation(kVideoRotation_90);

   EXPECT_NE(frame2.timestamp(), frame1.timestamp());
   EXPECT_NE(frame2.ntp_time_ms(), frame1.ntp_time_ms());
   EXPECT_NE(frame2.render_time_ms(), frame1.render_time_ms());
   EXPECT_NE(frame2.rotation(), frame1.rotation());
 }

 TEST(TestVideoFrame, Reset) {
   VideoFrame frame;
   ASSERT_TRUE(frame.CreateEmptyFrame(5, 5, 5, 5, 5) == 0);
   frame.set_ntp_time_ms(1);
   frame.set_timestamp(2);
   frame.set_render_time_ms(3);
   ASSERT_TRUE(frame.video_frame_buffer() != NULL);

   frame.Reset();
   EXPECT_EQ(0u, frame.ntp_time_ms());
   EXPECT_EQ(0u, frame.render_time_ms());
   EXPECT_EQ(0u, frame.timestamp());
   EXPECT_TRUE(frame.video_frame_buffer() == NULL);
 }

 TEST(TestVideoFrame, CopyBuffer) {
   VideoFrame frame1, frame2;
   int width = 15;
   int height = 15;
   int stride_y = 15;
   int stride_uv = 10;
   const int kSizeY = 225;
   const int kSizeUv = 80;
   EXPECT_EQ(0, frame2.CreateEmptyFrame(width, height,
                                        stride_y, stride_uv, stride_uv));
   uint8_t buffer_y[kSizeY];
   uint8_t buffer_u[kSizeUv];
   uint8_t buffer_v[kSizeUv];
   memset(buffer_y, 16, kSizeY);
   memset(buffer_u, 8, kSizeUv);
   memset(buffer_v, 4, kSizeUv);
   frame2.CreateFrame(buffer_y, buffer_u, buffer_v,
                      width, height, stride_y, stride_uv, stride_uv);
   // Expect exactly the same pixel data.
   EXPECT_TRUE(EqualPlane(buffer_y, frame2.buffer(kYPlane), stride_y, 15, 15));
   EXPECT_TRUE(EqualPlane(buffer_u, frame2.buffer(kUPlane), stride_uv, 8, 8));
   EXPECT_TRUE(EqualPlane(buffer_v, frame2.buffer(kVPlane), stride_uv, 8, 8));

   // Compare size.
   EXPECT_LE(kSizeY, frame2.allocated_size(kYPlane));
   EXPECT_LE(kSizeUv, frame2.allocated_size(kUPlane));
   EXPECT_LE(kSizeUv, frame2.allocated_size(kVPlane));
 }

 TEST(TestVideoFrame, ReuseAllocation) {
   VideoFrame frame;
   frame.CreateEmptyFrame(640, 320, 640, 320, 320);
   const uint8_t* y = frame.buffer(kYPlane);
   const uint8_t* u = frame.buffer(kUPlane);
   const uint8_t* v = frame.buffer(kVPlane);
   frame.CreateEmptyFrame(640, 320, 640, 320, 320);
   EXPECT_EQ(y, frame.buffer(kYPlane));
   EXPECT_EQ(u, frame.buffer(kUPlane));
   EXPECT_EQ(v, frame.buffer(kVPlane));
 }

 TEST(TestVideoFrame, FailToReuseAllocation) {
   VideoFrame frame1;
   frame1.CreateEmptyFrame(640, 320, 640, 320, 320);
   const uint8_t* y = frame1.buffer(kYPlane);
   const uint8_t* u = frame1.buffer(kUPlane);
   const uint8_t* v = frame1.buffer(kVPlane);
   // Make a shallow copy of |frame1|.
   VideoFrame frame2(frame1.video_frame_buffer(), 0, 0, kVideoRotation_0);
   frame1.CreateEmptyFrame(640, 320, 640, 320, 320);
   EXPECT_NE(y, frame1.buffer(kYPlane));
   EXPECT_NE(u, frame1.buffer(kUPlane));
   EXPECT_NE(v, frame1.buffer(kVPlane));
 }

 TEST(TestVideoFrame, TextureInitialValues) {
   NativeHandleImpl handle;
   VideoFrame frame(&handle, 640, 480, 100, 10, webrtc::kVideoRotation_0,
                    rtc::Callback0<void>());
   EXPECT_EQ(640, frame.width());
   EXPECT_EQ(480, frame.height());
   EXPECT_EQ(100u, frame.timestamp());
   EXPECT_EQ(10, frame.render_time_ms());
   EXPECT_EQ(&handle, frame.native_handle());

   frame.set_timestamp(200);
   EXPECT_EQ(200u, frame.timestamp());
   frame.set_render_time_ms(20);
   EXPECT_EQ(20, frame.render_time_ms());
 }

 TEST(TestVideoFrame, NoLongerNeeded) {
   NativeHandleImpl handle;
   ASSERT_FALSE(handle.no_longer_needed());
   VideoFrame* frame =
       new VideoFrame(&handle, 640, 480, 100, 200, webrtc::kVideoRotation_0,
                      rtc::Bind(&NativeHandleImpl::SetNoLongerNeeded, &handle));
   EXPECT_FALSE(handle.no_longer_needed());
   delete frame;
   EXPECT_TRUE(handle.no_longer_needed());
 }

 bool EqualPlane(const uint8_t* data1,
                 const uint8_t* data2,
                 int stride,
                 int width,
                 int height) {
   for (int y = 0; y < height; ++y) {
     if (memcmp(data1, data2, width) != 0)
       return false;
     data1 += stride;
     data2 += stride;
   }
   return true;
 }

 bool EqualFrames(const VideoFrame& frame1, const VideoFrame& frame2) {
   if ((frame1.width() != frame2.width()) ||
       (frame1.height() != frame2.height()) ||
       (frame1.stride(kYPlane) != frame2.stride(kYPlane)) ||
       (frame1.stride(kUPlane) != frame2.stride(kUPlane)) ||
       (frame1.stride(kVPlane) != frame2.stride(kVPlane)) ||
       (frame1.timestamp() != frame2.timestamp()) ||
       (frame1.ntp_time_ms() != frame2.ntp_time_ms()) ||
       (frame1.render_time_ms() != frame2.render_time_ms())) {
     return false;
   }
   const int half_width = (frame1.width() + 1) / 2;
   const int half_height = (frame1.height() + 1) / 2;
   return EqualPlane(frame1.buffer(kYPlane), frame2.buffer(kYPlane),
                     frame1.stride(kYPlane), frame1.width(), frame1.height()) &&
          EqualPlane(frame1.buffer(kUPlane), frame2.buffer(kUPlane),
                     frame1.stride(kUPlane), half_width, half_height) &&
          EqualPlane(frame1.buffer(kVPlane), frame2.buffer(kVPlane),
                     frame1.stride(kVPlane), half_width, half_height);
 }

 bool EqualTextureFrames(const VideoFrame& frame1, const VideoFrame& frame2) {
   return ((frame1.native_handle() == frame2.native_handle()) &&
           (frame1.width() == frame2.width()) &&
           (frame1.height() == frame2.height()) &&
           (frame1.timestamp() == frame2.timestamp()) &&
           (frame1.render_time_ms() == frame2.render_time_ms()));
 }

 int ExpectedSize(int plane_stride, int image_height, PlaneType type) {
   if (type == kYPlane) {
     return (plane_stride * image_height);
   } else {
     int half_height = (image_height + 1) / 2;
     return (plane_stride * half_height);
   }
 }

 }  // namespace webrtc
	/*
	* 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.
	*/

	#include "webrtc/video_frame.h"

	#include <math.h>
	#include <string.h>

	#include "testing/gtest/include/gtest/gtest.h"
	#include "webrtc/base/bind.h"
	#include "webrtc/base/scoped_ptr.h"

	namespace webrtc {

	class NativeHandleImpl {
	public:
	NativeHandleImpl() : no_longer_needed_(false) {}
	virtual ~NativeHandleImpl() {}
	bool no_longer_needed() const { return no_longer_needed_; }
	void SetNoLongerNeeded() { no_longer_needed_ = true; }

	private:
	bool no_longer_needed_;
	};

	bool EqualPlane(const uint8_t* data1,
	const uint8_t* data2,
	int stride,
	int width,
	int height);
	bool EqualFrames(const VideoFrame& frame1, const VideoFrame& frame2);
	bool EqualTextureFrames(const VideoFrame& frame1, const VideoFrame& frame2);
	int ExpectedSize(int plane_stride, int image_height, PlaneType type);

	TEST(TestVideoFrame, InitialValues) {
	VideoFrame frame;
	EXPECT_TRUE(frame.IsZeroSize());
	EXPECT_EQ(kVideoRotation_0, frame.rotation());
	}

	TEST(TestVideoFrame, CopiesInitialFrameWithoutCrashing) {
	VideoFrame frame;
	VideoFrame frame2;
	frame2.CopyFrame(frame);
	}

	TEST(TestVideoFrame, WidthHeightValues) {
	VideoFrame frame;
	const int valid_value = 10;
	EXPECT_EQ(0, frame.CreateEmptyFrame(10, 10, 10, 14, 90));
	EXPECT_EQ(valid_value, frame.width());
	EXPECT_EQ(valid_value, frame.height());
	frame.set_timestamp(123u);
	EXPECT_EQ(123u, frame.timestamp());
	frame.set_ntp_time_ms(456);
	EXPECT_EQ(456, frame.ntp_time_ms());
	frame.set_render_time_ms(789);
	EXPECT_EQ(789, frame.render_time_ms());
	}

	TEST(TestVideoFrame, SizeAllocation) {
	VideoFrame frame;
	EXPECT_EQ(0, frame. CreateEmptyFrame(10, 10, 12, 14, 220));
	int height = frame.height();
	int stride_y = frame.stride(kYPlane);
	int stride_u = frame.stride(kUPlane);
	int stride_v = frame.stride(kVPlane);
	// Verify that allocated size was computed correctly.
	EXPECT_EQ(ExpectedSize(stride_y, height, kYPlane),
	frame.allocated_size(kYPlane));
	EXPECT_EQ(ExpectedSize(stride_u, height, kUPlane),
	frame.allocated_size(kUPlane));
	EXPECT_EQ(ExpectedSize(stride_v, height, kVPlane),
	frame.allocated_size(kVPlane));
	}

	TEST(TestVideoFrame, CopyFrame) {
	uint32_t timestamp = 1;
	int64_t ntp_time_ms = 2;
	int64_t render_time_ms = 3;
	int stride_y = 15;
	int stride_u = 10;
	int stride_v = 10;
	int width = 15;
	int height = 15;
	// Copy frame.
	VideoFrame small_frame;
	EXPECT_EQ(0, small_frame.CreateEmptyFrame(width, height,
	stride_y, stride_u, stride_v));
	small_frame.set_timestamp(timestamp);
	small_frame.set_ntp_time_ms(ntp_time_ms);
	small_frame.set_render_time_ms(render_time_ms);
	const int kSizeY = 400;
	const int kSizeU = 100;
	const int kSizeV = 100;
	const VideoRotation kRotation = kVideoRotation_270;
	uint8_t buffer_y[kSizeY];
	uint8_t buffer_u[kSizeU];
	uint8_t buffer_v[kSizeV];
	memset(buffer_y, 16, kSizeY);
	memset(buffer_u, 8, kSizeU);
	memset(buffer_v, 4, kSizeV);
	VideoFrame big_frame;
	EXPECT_EQ(0,
	big_frame.CreateFrame(buffer_y, buffer_u, buffer_v,
	width + 5, height + 5, stride_y + 5,
	stride_u, stride_v, kRotation));
	// Frame of smaller dimensions.
	EXPECT_EQ(0, small_frame.CopyFrame(big_frame));
	EXPECT_TRUE(EqualFrames(small_frame, big_frame));
	EXPECT_EQ(kRotation, small_frame.rotation());

	// Frame of larger dimensions.
	EXPECT_EQ(0, small_frame.CreateEmptyFrame(width, height,
	stride_y, stride_u, stride_v));
	memset(small_frame.buffer(kYPlane), 1, small_frame.allocated_size(kYPlane));
	memset(small_frame.buffer(kUPlane), 2, small_frame.allocated_size(kUPlane));
	memset(small_frame.buffer(kVPlane), 3, small_frame.allocated_size(kVPlane));
	EXPECT_EQ(0, big_frame.CopyFrame(small_frame));
	EXPECT_TRUE(EqualFrames(small_frame, big_frame));
	}

	TEST(TestVideoFrame, ShallowCopy) {
	uint32_t timestamp = 1;
	int64_t ntp_time_ms = 2;
	int64_t render_time_ms = 3;
	int stride_y = 15;
	int stride_u = 10;
	int stride_v = 10;
	int width = 15;
	int height = 15;

	const int kSizeY = 400;
	const int kSizeU = 100;
	const int kSizeV = 100;
	const VideoRotation kRotation = kVideoRotation_270;
	uint8_t buffer_y[kSizeY];
	uint8_t buffer_u[kSizeU];
	uint8_t buffer_v[kSizeV];
	memset(buffer_y, 16, kSizeY);
	memset(buffer_u, 8, kSizeU);
	memset(buffer_v, 4, kSizeV);
	VideoFrame frame1;
	EXPECT_EQ(0, frame1.CreateFrame(buffer_y, buffer_u, buffer_v, width, height,
	stride_y, stride_u, stride_v, kRotation));
	frame1.set_timestamp(timestamp);
	frame1.set_ntp_time_ms(ntp_time_ms);
	frame1.set_render_time_ms(render_time_ms);
	VideoFrame frame2;
	frame2.ShallowCopy(frame1);

	// To be able to access the buffers, we need const pointers to the frames.
	const VideoFrame* const_frame1_ptr = &frame1;
	const VideoFrame* const_frame2_ptr = &frame2;

	EXPECT_TRUE(const_frame1_ptr->buffer(kYPlane) ==
	const_frame2_ptr->buffer(kYPlane));
	EXPECT_TRUE(const_frame1_ptr->buffer(kUPlane) ==
	const_frame2_ptr->buffer(kUPlane));
	EXPECT_TRUE(const_frame1_ptr->buffer(kVPlane) ==
	const_frame2_ptr->buffer(kVPlane));

	EXPECT_EQ(frame2.timestamp(), frame1.timestamp());
	EXPECT_EQ(frame2.ntp_time_ms(), frame1.ntp_time_ms());
	EXPECT_EQ(frame2.render_time_ms(), frame1.render_time_ms());
	EXPECT_EQ(frame2.rotation(), frame1.rotation());

	frame2.set_timestamp(timestamp + 1);
	frame2.set_ntp_time_ms(ntp_time_ms + 1);
	frame2.set_render_time_ms(render_time_ms + 1);
	frame2.set_rotation(kVideoRotation_90);

	EXPECT_NE(frame2.timestamp(), frame1.timestamp());
	EXPECT_NE(frame2.ntp_time_ms(), frame1.ntp_time_ms());
	EXPECT_NE(frame2.render_time_ms(), frame1.render_time_ms());
	EXPECT_NE(frame2.rotation(), frame1.rotation());
	}

	TEST(TestVideoFrame, Reset) {
	VideoFrame frame;
	ASSERT_TRUE(frame.CreateEmptyFrame(5, 5, 5, 5, 5) == 0);
	frame.set_ntp_time_ms(1);
	frame.set_timestamp(2);
	frame.set_render_time_ms(3);
	ASSERT_TRUE(frame.video_frame_buffer() != NULL);

	frame.Reset();
	EXPECT_EQ(0u, frame.ntp_time_ms());
	EXPECT_EQ(0u, frame.render_time_ms());
	EXPECT_EQ(0u, frame.timestamp());
	EXPECT_TRUE(frame.video_frame_buffer() == NULL);
	}

	TEST(TestVideoFrame, CopyBuffer) {
	VideoFrame frame1, frame2;
	int width = 15;
	int height = 15;
	int stride_y = 15;
	int stride_uv = 10;
	const int kSizeY = 225;
	const int kSizeUv = 80;
	EXPECT_EQ(0, frame2.CreateEmptyFrame(width, height,
	stride_y, stride_uv, stride_uv));
	uint8_t buffer_y[kSizeY];
	uint8_t buffer_u[kSizeUv];
	uint8_t buffer_v[kSizeUv];
	memset(buffer_y, 16, kSizeY);
	memset(buffer_u, 8, kSizeUv);
	memset(buffer_v, 4, kSizeUv);
	frame2.CreateFrame(buffer_y, buffer_u, buffer_v,
	width, height, stride_y, stride_uv, stride_uv);
	// Expect exactly the same pixel data.
	EXPECT_TRUE(EqualPlane(buffer_y, frame2.buffer(kYPlane), stride_y, 15, 15));
	EXPECT_TRUE(EqualPlane(buffer_u, frame2.buffer(kUPlane), stride_uv, 8, 8));
	EXPECT_TRUE(EqualPlane(buffer_v, frame2.buffer(kVPlane), stride_uv, 8, 8));

	// Compare size.
	EXPECT_LE(kSizeY, frame2.allocated_size(kYPlane));
	EXPECT_LE(kSizeUv, frame2.allocated_size(kUPlane));
	EXPECT_LE(kSizeUv, frame2.allocated_size(kVPlane));
	}

	TEST(TestVideoFrame, ReuseAllocation) {
	VideoFrame frame;
	frame.CreateEmptyFrame(640, 320, 640, 320, 320);
	const uint8_t* y = frame.buffer(kYPlane);
	const uint8_t* u = frame.buffer(kUPlane);
	const uint8_t* v = frame.buffer(kVPlane);
	frame.CreateEmptyFrame(640, 320, 640, 320, 320);
	EXPECT_EQ(y, frame.buffer(kYPlane));
	EXPECT_EQ(u, frame.buffer(kUPlane));
	EXPECT_EQ(v, frame.buffer(kVPlane));
	}

	TEST(TestVideoFrame, FailToReuseAllocation) {
	VideoFrame frame1;
	frame1.CreateEmptyFrame(640, 320, 640, 320, 320);
	const uint8_t* y = frame1.buffer(kYPlane);
	const uint8_t* u = frame1.buffer(kUPlane);
	const uint8_t* v = frame1.buffer(kVPlane);
	// Make a shallow copy of \|frame1\|.
	VideoFrame frame2(frame1.video_frame_buffer(), 0, 0, kVideoRotation_0);
	frame1.CreateEmptyFrame(640, 320, 640, 320, 320);
	EXPECT_NE(y, frame1.buffer(kYPlane));
	EXPECT_NE(u, frame1.buffer(kUPlane));
	EXPECT_NE(v, frame1.buffer(kVPlane));
	}

	TEST(TestVideoFrame, TextureInitialValues) {
	NativeHandleImpl handle;
	VideoFrame frame(&handle, 640, 480, 100, 10, webrtc::kVideoRotation_0,
	rtc::Callback0<void>());
	EXPECT_EQ(640, frame.width());
	EXPECT_EQ(480, frame.height());
	EXPECT_EQ(100u, frame.timestamp());
	EXPECT_EQ(10, frame.render_time_ms());
	EXPECT_EQ(&handle, frame.native_handle());

	frame.set_timestamp(200);
	EXPECT_EQ(200u, frame.timestamp());
	frame.set_render_time_ms(20);
	EXPECT_EQ(20, frame.render_time_ms());
	}

	TEST(TestVideoFrame, NoLongerNeeded) {
	NativeHandleImpl handle;
	ASSERT_FALSE(handle.no_longer_needed());
	VideoFrame* frame =
	new VideoFrame(&handle, 640, 480, 100, 200, webrtc::kVideoRotation_0,
	rtc::Bind(&NativeHandleImpl::SetNoLongerNeeded, &handle));
	EXPECT_FALSE(handle.no_longer_needed());
	delete frame;
	EXPECT_TRUE(handle.no_longer_needed());
	}

	bool EqualPlane(const uint8_t* data1,
	const uint8_t* data2,
	int stride,
	int width,
	int height) {
	for (int y = 0; y < height; ++y) {
	if (memcmp(data1, data2, width) != 0)
	return false;
	data1 += stride;
	data2 += stride;
	}
	return true;
	}

	bool EqualFrames(const VideoFrame& frame1, const VideoFrame& frame2) {
	if ((frame1.width() != frame2.width()) \|\|
	(frame1.height() != frame2.height()) \|\|
	(frame1.stride(kYPlane) != frame2.stride(kYPlane)) \|\|
	(frame1.stride(kUPlane) != frame2.stride(kUPlane)) \|\|
	(frame1.stride(kVPlane) != frame2.stride(kVPlane)) \|\|
	(frame1.timestamp() != frame2.timestamp()) \|\|
	(frame1.ntp_time_ms() != frame2.ntp_time_ms()) \|\|
	(frame1.render_time_ms() != frame2.render_time_ms())) {
	return false;
	}
	const int half_width = (frame1.width() + 1) / 2;
	const int half_height = (frame1.height() + 1) / 2;
	return EqualPlane(frame1.buffer(kYPlane), frame2.buffer(kYPlane),
	frame1.stride(kYPlane), frame1.width(), frame1.height()) &&
	EqualPlane(frame1.buffer(kUPlane), frame2.buffer(kUPlane),
	frame1.stride(kUPlane), half_width, half_height) &&
	EqualPlane(frame1.buffer(kVPlane), frame2.buffer(kVPlane),
	frame1.stride(kVPlane), half_width, half_height);
	}

	bool EqualTextureFrames(const VideoFrame& frame1, const VideoFrame& frame2) {
	return ((frame1.native_handle() == frame2.native_handle()) &&
	(frame1.width() == frame2.width()) &&
	(frame1.height() == frame2.height()) &&
	(frame1.timestamp() == frame2.timestamp()) &&
	(frame1.render_time_ms() == frame2.render_time_ms()));
	}

	int ExpectedSize(int plane_stride, int image_height, PlaneType type) {
	if (type == kYPlane) {
	return (plane_stride * image_height);
	} else {
	int half_height = (image_height + 1) / 2;
	return (plane_stride * half_height);
	}
	}

	} // namespace webrtc