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// Copyright (c) 2012 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/video_frame.h"
#include "media/base/video_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkDevice.h"
#include "media/filters/skcanvas_video_renderer.h"
using media::VideoFrame;
namespace media {
static const int kWidth = 320;
static const int kHeight = 240;
static const gfx::Rect kNaturalRect(0, 0, kWidth, kHeight);
// Helper for filling a |canvas| with a solid |color|.
void FillCanvas(SkCanvas* canvas, SkColor color) {
const SkBitmap& bitmap = canvas->getDevice()->accessBitmap(true);
bitmap.lockPixels();
bitmap.eraseColor(color);
bitmap.unlockPixels();
}
// Helper for returning the color of a solid |canvas|.
SkColor GetColorAt(SkCanvas* canvas, int x, int y) {
const SkBitmap& bitmap = canvas->getDevice()->accessBitmap(false);
bitmap.lockPixels();
SkColor c = bitmap.getColor(x, y);
bitmap.unlockPixels();
return c;
}
SkColor GetColor(SkCanvas* canvas) {
return GetColorAt(canvas, 0, 0);
}
class SkCanvasVideoRendererTest : public testing::Test {
public:
enum Color {
kNone,
kRed,
kGreen,
kBlue,
};
SkCanvasVideoRendererTest();
virtual ~SkCanvasVideoRendererTest();
// Paints to |canvas| using |renderer_| without any frame data.
void PaintWithoutFrame(SkCanvas* canvas);
// Paints the |video_frame| to the |canvas| using |renderer_|, setting the
// color of |video_frame| to |color| first.
void Paint(VideoFrame* video_frame, SkCanvas* canvas, Color color);
// Getters for various frame sizes.
VideoFrame* natural_frame() { return natural_frame_; }
VideoFrame* larger_frame() { return larger_frame_; }
VideoFrame* smaller_frame() { return smaller_frame_; }
VideoFrame* cropped_frame() { return cropped_frame_; }
// Getters for canvases that trigger the various painting paths.
SkCanvas* fast_path_canvas() { return &fast_path_canvas_; }
SkCanvas* slow_path_canvas() { return &slow_path_canvas_; }
private:
SkCanvasVideoRenderer renderer_;
scoped_refptr<VideoFrame> natural_frame_;
scoped_refptr<VideoFrame> larger_frame_;
scoped_refptr<VideoFrame> smaller_frame_;
scoped_refptr<VideoFrame> cropped_frame_;
SkDevice fast_path_device_;
SkCanvas fast_path_canvas_;
SkDevice slow_path_device_;
SkCanvas slow_path_canvas_;
DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRendererTest);
};
SkCanvasVideoRendererTest::SkCanvasVideoRendererTest()
: natural_frame_(VideoFrame::CreateBlackFrame(gfx::Size(kWidth, kHeight))),
larger_frame_(VideoFrame::CreateBlackFrame(
gfx::Size(kWidth * 2, kHeight * 2))),
smaller_frame_(VideoFrame::CreateBlackFrame(
gfx::Size(kWidth / 2, kHeight / 2))),
cropped_frame_(VideoFrame::CreateFrame(
VideoFrame::YV12,
gfx::Size(16, 16),
gfx::Rect(6, 6, 8, 6),
gfx::Size(8, 6),
base::TimeDelta::FromMilliseconds(4))),
fast_path_device_(SkBitmap::kARGB_8888_Config, kWidth, kHeight, true),
fast_path_canvas_(&fast_path_device_),
slow_path_device_(SkBitmap::kARGB_8888_Config, kWidth, kHeight, false),
slow_path_canvas_(&slow_path_device_) {
// Give each frame a unique timestamp.
natural_frame_->SetTimestamp(base::TimeDelta::FromMilliseconds(1));
larger_frame_->SetTimestamp(base::TimeDelta::FromMilliseconds(2));
smaller_frame_->SetTimestamp(base::TimeDelta::FromMilliseconds(3));
// Make sure the cropped video frame's aspect ratio matches the output device.
// Update cropped_frame_'s crop dimensions if this is not the case.
EXPECT_EQ(cropped_frame()->natural_size().width() * kHeight,
cropped_frame()->natural_size().height() * kWidth);
// Fill in the cropped frame's entire data with colors:
//
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// Bl Bl Bl Bl Bl Bl Bl Bl R R R R R R R R
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
// G G G G G G G G B B B B B B B B
//
// The visible crop of the frame (as set by its visible_rect_) has contents:
//
// Bl Bl R R R R R R
// Bl Bl R R R R R R
// G G B B B B B B
// G G B B B B B B
// G G B B B B B B
// G G B B B B B B
//
// Each color region in the cropped frame is on a 2x2 block granularity, to
// avoid sharing UV samples between regions.
static const uint8 cropped_y_plane[] = {
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
0, 0, 0, 0, 0, 0, 0, 0, 76, 76, 76, 76, 76, 76, 76, 76,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
149, 149, 149, 149, 149, 149, 149, 149, 29, 29, 29, 29, 29, 29, 29, 29,
};
static const uint8 cropped_u_plane[] = {
128, 128, 128, 128, 84, 84, 84, 84,
128, 128, 128, 128, 84, 84, 84, 84,
128, 128, 128, 128, 84, 84, 84, 84,
128, 128, 128, 128, 84, 84, 84, 84,
43, 43, 43, 43, 255, 255, 255, 255,
43, 43, 43, 43, 255, 255, 255, 255,
43, 43, 43, 43, 255, 255, 255, 255,
43, 43, 43, 43, 255, 255, 255, 255,
};
static const uint8 cropped_v_plane[] = {
128, 128, 128, 128, 255, 255, 255, 255,
128, 128, 128, 128, 255, 255, 255, 255,
128, 128, 128, 128, 255, 255, 255, 255,
128, 128, 128, 128, 255, 255, 255, 255,
21, 21, 21, 21, 107, 107, 107, 107,
21, 21, 21, 21, 107, 107, 107, 107,
21, 21, 21, 21, 107, 107, 107, 107,
21, 21, 21, 21, 107, 107, 107, 107,
};
media::CopyYPlane(cropped_y_plane, 16, 16, cropped_frame());
media::CopyUPlane(cropped_u_plane, 8, 8, cropped_frame());
media::CopyVPlane(cropped_v_plane, 8, 8, cropped_frame());
}
SkCanvasVideoRendererTest::~SkCanvasVideoRendererTest() {}
void SkCanvasVideoRendererTest::PaintWithoutFrame(SkCanvas* canvas) {
renderer_.Paint(NULL, canvas, kNaturalRect, 0xFF);
}
void SkCanvasVideoRendererTest::Paint(VideoFrame* video_frame,
SkCanvas* canvas,
Color color) {
switch (color) {
case kNone:
break;
case kRed:
media::FillYUV(video_frame, 76, 84, 255);
break;
case kGreen:
media::FillYUV(video_frame, 149, 43, 21);
break;
case kBlue:
media::FillYUV(video_frame, 29, 255, 107);
break;
}
renderer_.Paint(video_frame, canvas, kNaturalRect, 0xFF);
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_NoFrame) {
// Test that black gets painted over canvas.
FillCanvas(fast_path_canvas(), SK_ColorRED);
PaintWithoutFrame(fast_path_canvas());
EXPECT_EQ(SK_ColorBLACK, GetColor(fast_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_NoFrame) {
// Test that black gets painted over canvas.
FillCanvas(slow_path_canvas(), SK_ColorRED);
PaintWithoutFrame(slow_path_canvas());
EXPECT_EQ(SK_ColorBLACK, GetColor(slow_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_Natural) {
Paint(natural_frame(), fast_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(fast_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_Natural) {
Paint(natural_frame(), slow_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(slow_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_Larger) {
Paint(natural_frame(), fast_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(fast_path_canvas()));
Paint(larger_frame(), fast_path_canvas(), kBlue);
EXPECT_EQ(SK_ColorBLUE, GetColor(fast_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_Larger) {
Paint(natural_frame(), slow_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(slow_path_canvas()));
Paint(larger_frame(), slow_path_canvas(), kBlue);
EXPECT_EQ(SK_ColorBLUE, GetColor(slow_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_Smaller) {
Paint(natural_frame(), fast_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(fast_path_canvas()));
Paint(smaller_frame(), fast_path_canvas(), kBlue);
EXPECT_EQ(SK_ColorBLUE, GetColor(fast_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_Smaller) {
Paint(natural_frame(), slow_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(slow_path_canvas()));
Paint(smaller_frame(), slow_path_canvas(), kBlue);
EXPECT_EQ(SK_ColorBLUE, GetColor(slow_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_NoTimestamp) {
VideoFrame* video_frame = natural_frame();
video_frame->SetTimestamp(media::kNoTimestamp());
Paint(video_frame, fast_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(fast_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_NoTimestamp) {
VideoFrame* video_frame = natural_frame();
video_frame->SetTimestamp(media::kNoTimestamp());
Paint(video_frame, slow_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(slow_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_SameVideoFrame) {
Paint(natural_frame(), fast_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(fast_path_canvas()));
// Fast paints always get painted to the canvas.
Paint(natural_frame(), fast_path_canvas(), kBlue);
EXPECT_EQ(SK_ColorBLUE, GetColor(fast_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_SameVideoFrame) {
Paint(natural_frame(), slow_path_canvas(), kRed);
EXPECT_EQ(SK_ColorRED, GetColor(slow_path_canvas()));
// Slow paints can get cached, expect the old color value.
Paint(natural_frame(), slow_path_canvas(), kBlue);
EXPECT_EQ(SK_ColorRED, GetColor(slow_path_canvas()));
}
TEST_F(SkCanvasVideoRendererTest, FastPaint_CroppedFrame) {
Paint(cropped_frame(), fast_path_canvas(), kNone);
// Check the corners.
EXPECT_EQ(SK_ColorBLACK, GetColorAt(fast_path_canvas(), 0, 0));
EXPECT_EQ(SK_ColorRED, GetColorAt(fast_path_canvas(), kWidth - 1, 0));
EXPECT_EQ(SK_ColorGREEN, GetColorAt(fast_path_canvas(), 0, kHeight - 1));
EXPECT_EQ(SK_ColorBLUE, GetColorAt(fast_path_canvas(), kWidth - 1,
kHeight - 1));
// Check the interior along the border between color regions. Note that we're
// bilinearly upscaling, so we'll need to take care to pick sample points that
// are just outside the "zone of resampling".
// TODO(sheu): commenting out two checks due to http://crbug.com/158462.
#if 0
EXPECT_EQ(SK_ColorBLACK, GetColorAt(fast_path_canvas(), kWidth * 1 / 8 - 1,
kHeight * 1 / 6 - 1));
#endif
EXPECT_EQ(SK_ColorRED, GetColorAt(fast_path_canvas(), kWidth * 3 / 8,
kHeight * 1 / 6 - 1));
#if 0
EXPECT_EQ(SK_ColorGREEN, GetColorAt(fast_path_canvas(), kWidth * 1 / 8 - 1,
kHeight * 3 / 6));
#endif
EXPECT_EQ(SK_ColorBLUE, GetColorAt(fast_path_canvas(), kWidth * 3 / 8,
kHeight * 3 / 6));
}
TEST_F(SkCanvasVideoRendererTest, SlowPaint_CroppedFrame) {
Paint(cropped_frame(), slow_path_canvas(), kNone);
// Check the corners.
EXPECT_EQ(SK_ColorBLACK, GetColorAt(slow_path_canvas(), 0, 0));
EXPECT_EQ(SK_ColorRED, GetColorAt(slow_path_canvas(), kWidth - 1, 0));
EXPECT_EQ(SK_ColorGREEN, GetColorAt(slow_path_canvas(), 0, kHeight - 1));
EXPECT_EQ(SK_ColorBLUE, GetColorAt(slow_path_canvas(), kWidth - 1,
kHeight - 1));
// Check the interior along the border between color regions. Note that we're
// bilinearly upscaling, so we'll need to take care to pick sample points that
// are just outside the "zone of resampling".
EXPECT_EQ(SK_ColorBLACK, GetColorAt(slow_path_canvas(), kWidth * 1 / 8 - 1,
kHeight * 1 / 6 - 1));
EXPECT_EQ(SK_ColorRED, GetColorAt(slow_path_canvas(), kWidth * 3 / 8,
kHeight * 1 / 6 - 1));
EXPECT_EQ(SK_ColorGREEN, GetColorAt(slow_path_canvas(), kWidth * 1 / 8 - 1,
kHeight * 3 / 6));
EXPECT_EQ(SK_ColorBLUE, GetColorAt(slow_path_canvas(), kWidth * 3 / 8,
kHeight * 3 / 6));
}
} // namespace media
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