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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/buffers.h"
#include "media/base/mock_filters.h"
#include "media/base/video_frame_impl.h"
#include "media/base/yuv_convert.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
// Helper function that initializes a YV12 frame with white and black scan
// lines based on the |white_to_black| parameter. If 0, then the entire
// frame will be black, if 1 then the entire frame will be white.
void InitializeYV12Frame(VideoFrame* frame, double white_to_black) {
VideoSurface surface;
if (!frame->Lock(&surface)) {
ADD_FAILURE();
return;
}
EXPECT_EQ(surface.format, VideoSurface::YV12);
size_t first_black_row = static_cast<size_t>(surface.height * white_to_black);
uint8* y_plane = surface.data[VideoSurface::kYPlane];
for (size_t row = 0; row < surface.height; ++row) {
int color = (row < first_black_row) ? 0xFF : 0x00;
memset(y_plane, color, surface.width);
y_plane += surface.strides[VideoSurface::kYPlane];
}
uint8* u_plane = surface.data[VideoSurface::kUPlane];
uint8* v_plane = surface.data[VideoSurface::kVPlane];
for (size_t row = 0; row < surface.height; row += 2) {
memset(u_plane, 0x80, surface.width / 2);
memset(v_plane, 0x80, surface.width / 2);
u_plane += surface.strides[VideoSurface::kUPlane];
v_plane += surface.strides[VideoSurface::kVPlane];
}
frame->Unlock();
}
// Given a |yv12_frame| this method converts the YV12 frame to RGBA and
// makes sure that all the pixels of the RBG frame equal |expect_rgb_color|.
void ExpectFrameColor(media::VideoFrame* yv12_frame, uint32 expect_rgb_color) {
// On linux and mac builds if you directly compare using EXPECT_EQ and use
// the VideoSurface::kNumxxxPlanes constants, it generates an error when
// linking. These are declared so that we can compare against locals.
const size_t expect_yuv_planes = VideoSurface::kNumYUVPlanes;
const size_t expect_rgb_planes = VideoSurface::kNumRGBPlanes;
VideoSurface yuv_surface;
EXPECT_TRUE(yv12_frame->Lock(&yuv_surface));
EXPECT_EQ(yuv_surface.format, VideoSurface::YV12);
EXPECT_EQ(yuv_surface.planes, expect_yuv_planes);
EXPECT_EQ(yuv_surface.strides[VideoSurface::kUPlane],
yuv_surface.strides[VideoSurface::kVPlane]);
scoped_refptr<media::VideoFrame> rgb_frame;
media::VideoFrameImpl::CreateFrame(VideoSurface::RGBA,
yuv_surface.width,
yuv_surface.height,
yv12_frame->GetTimestamp(),
yv12_frame->GetDuration(),
&rgb_frame);
media::VideoSurface rgb_surface;
EXPECT_TRUE(rgb_frame->Lock(&rgb_surface));
EXPECT_EQ(rgb_surface.width, yuv_surface.width);
EXPECT_EQ(rgb_surface.height, yuv_surface.height);
EXPECT_EQ(rgb_surface.planes, expect_rgb_planes);
media::ConvertYUVToRGB32(yuv_surface.data[VideoSurface::kYPlane],
yuv_surface.data[VideoSurface::kUPlane],
yuv_surface.data[VideoSurface::kVPlane],
rgb_surface.data[VideoSurface::kRGBPlane],
rgb_surface.width,
rgb_surface.height,
yuv_surface.strides[VideoSurface::kYPlane],
yuv_surface.strides[VideoSurface::kUPlane],
rgb_surface.strides[VideoSurface::kRGBPlane],
media::YV12);
for (size_t row = 0; row < rgb_surface.height; ++row) {
uint32* rgb_row_data = reinterpret_cast<uint32*>(
rgb_surface.data[VideoSurface::kRGBPlane] +
(rgb_surface.strides[VideoSurface::kRGBPlane] * row));
for (size_t col = 0; col < rgb_surface.width; ++col) {
EXPECT_EQ(rgb_row_data[col], expect_rgb_color);
}
}
rgb_frame->Unlock();
yv12_frame->Unlock();
}
TEST(VideoFrameImpl, CreateFrame) {
const size_t kWidth = 64;
const size_t kHeight = 48;
const base::TimeDelta kTimestampA = base::TimeDelta::FromMicroseconds(1337);
const base::TimeDelta kDurationA = base::TimeDelta::FromMicroseconds(1667);
const base::TimeDelta kTimestampB = base::TimeDelta::FromMicroseconds(1234);
const base::TimeDelta kDurationB = base::TimeDelta::FromMicroseconds(5678);
// Create a YV12 Video Frame.
scoped_refptr<media::VideoFrame> frame;
VideoFrameImpl::CreateFrame(media::VideoSurface::YV12, kWidth, kHeight,
kTimestampA, kDurationA, &frame);
ASSERT_TRUE(frame);
// Test StreamSample implementation.
EXPECT_TRUE(kTimestampA == frame->GetTimestamp());
EXPECT_TRUE(kDurationA == frame->GetDuration());
EXPECT_FALSE(frame->IsEndOfStream());
EXPECT_FALSE(frame->IsDiscontinuous());
frame->SetTimestamp(kTimestampB);
frame->SetDuration(kDurationB);
EXPECT_TRUE(kTimestampB == frame->GetTimestamp());
EXPECT_TRUE(kDurationB == frame->GetDuration());
EXPECT_FALSE(frame->IsEndOfStream());
frame->SetDiscontinuous(true);
EXPECT_TRUE(frame->IsDiscontinuous());
frame->SetDiscontinuous(false);
EXPECT_FALSE(frame->IsDiscontinuous());
// Test VideoFrame implementation.
InitializeYV12Frame(frame, 0.0f);
ExpectFrameColor(frame, 0xFF000000);
InitializeYV12Frame(frame, 1.0f);
ExpectFrameColor(frame, 0xFFFFFFFF);
// Test an empty frame.
VideoFrameImpl::CreateEmptyFrame(&frame);
EXPECT_TRUE(frame->IsEndOfStream());
}
} // namespace media
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