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// Copyright (c) 2011 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 "base/format_macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/stringprintf.h"
#include "media/base/buffers.h"
#include "media/base/mock_filters.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) {
EXPECT_EQ(VideoFrame::YV12, frame->format());
size_t first_black_row = static_cast<size_t>(frame->height() *
white_to_black);
uint8* y_plane = frame->data(VideoFrame::kYPlane);
for (size_t row = 0; row < frame->height(); ++row) {
int color = (row < first_black_row) ? 0xFF : 0x00;
memset(y_plane, color, frame->width());
y_plane += frame->stride(VideoFrame::kYPlane);
}
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
for (size_t row = 0; row < frame->height(); row += 2) {
memset(u_plane, 0x80, frame->width() / 2);
memset(v_plane, 0x80, frame->width() / 2);
u_plane += frame->stride(VideoFrame::kUPlane);
v_plane += frame->stride(VideoFrame::kVPlane);
}
}
// 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) {
ASSERT_EQ(VideoFrame::YV12, yv12_frame->format());
ASSERT_EQ(yv12_frame->stride(VideoFrame::kUPlane),
yv12_frame->stride(VideoFrame::kVPlane));
scoped_refptr<media::VideoFrame> rgb_frame;
rgb_frame = media::VideoFrame::CreateFrame(VideoFrame::RGBA,
yv12_frame->width(),
yv12_frame->height(),
yv12_frame->GetTimestamp(),
yv12_frame->GetDuration());
ASSERT_EQ(yv12_frame->width(), rgb_frame->width());
ASSERT_EQ(yv12_frame->height(), rgb_frame->height());
media::ConvertYUVToRGB32(yv12_frame->data(VideoFrame::kYPlane),
yv12_frame->data(VideoFrame::kUPlane),
yv12_frame->data(VideoFrame::kVPlane),
rgb_frame->data(VideoFrame::kRGBPlane),
rgb_frame->width(),
rgb_frame->height(),
yv12_frame->stride(VideoFrame::kYPlane),
yv12_frame->stride(VideoFrame::kUPlane),
rgb_frame->stride(VideoFrame::kRGBPlane),
media::YV12);
for (size_t row = 0; row < rgb_frame->height(); ++row) {
uint32* rgb_row_data = reinterpret_cast<uint32*>(
rgb_frame->data(VideoFrame::kRGBPlane) +
(rgb_frame->stride(VideoFrame::kRGBPlane) * row));
for (size_t col = 0; col < rgb_frame->width(); ++col) {
SCOPED_TRACE(
base::StringPrintf("Checking (%" PRIuS ", %" PRIuS ")", row, col));
EXPECT_EQ(expect_rgb_color, rgb_row_data[col]);
}
}
}
TEST(VideoFrame, 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 =
VideoFrame::CreateFrame(media::VideoFrame::YV12, kWidth, kHeight,
kTimestampA, kDurationA);
ASSERT_TRUE(frame);
// Test StreamSample implementation.
EXPECT_EQ(kTimestampA.InMicroseconds(),
frame->GetTimestamp().InMicroseconds());
EXPECT_EQ(kDurationA.InMicroseconds(),
frame->GetDuration().InMicroseconds());
EXPECT_FALSE(frame->IsEndOfStream());
frame->SetTimestamp(kTimestampB);
frame->SetDuration(kDurationB);
EXPECT_EQ(kTimestampB.InMicroseconds(),
frame->GetTimestamp().InMicroseconds());
EXPECT_EQ(kDurationB.InMicroseconds(),
frame->GetDuration().InMicroseconds());
EXPECT_FALSE(frame->IsEndOfStream());
// Test VideoFrame implementation.
EXPECT_EQ(media::VideoFrame::YV12, frame->format());
{
SCOPED_TRACE("");
InitializeYV12Frame(frame, 0.0f);
ExpectFrameColor(frame, 0xFF000000);
}
{
SCOPED_TRACE("");
InitializeYV12Frame(frame, 1.0f);
ExpectFrameColor(frame, 0xFFFFFFFF);
}
// Test an empty frame.
frame = VideoFrame::CreateEmptyFrame();
EXPECT_TRUE(frame->IsEndOfStream());
}
TEST(VideoFrame, CreateBlackFrame) {
const size_t kWidth = 2;
const size_t kHeight = 2;
const uint8 kExpectedYRow[] = { 0, 0 };
const uint8 kExpectedUVRow[] = { 128 };
scoped_refptr<media::VideoFrame> frame =
VideoFrame::CreateBlackFrame(kWidth, kHeight);
ASSERT_TRUE(frame);
// Test basic properties.
EXPECT_EQ(0, frame->GetTimestamp().InMicroseconds());
EXPECT_EQ(0, frame->GetDuration().InMicroseconds());
EXPECT_FALSE(frame->IsEndOfStream());
// Test |frame| properties.
EXPECT_EQ(VideoFrame::YV12, frame->format());
EXPECT_EQ(kWidth, frame->width());
EXPECT_EQ(kHeight, frame->height());
// Test frames themselves.
uint8* y_plane = frame->data(VideoFrame::kYPlane);
for (size_t y = 0; y < frame->height(); ++y) {
EXPECT_EQ(0, memcmp(kExpectedYRow, y_plane, arraysize(kExpectedYRow)));
y_plane += frame->stride(VideoFrame::kYPlane);
}
uint8* u_plane = frame->data(VideoFrame::kUPlane);
uint8* v_plane = frame->data(VideoFrame::kVPlane);
for (size_t y = 0; y < frame->height() / 2; ++y) {
EXPECT_EQ(0, memcmp(kExpectedUVRow, u_plane, arraysize(kExpectedUVRow)));
EXPECT_EQ(0, memcmp(kExpectedUVRow, v_plane, arraysize(kExpectedUVRow)));
u_plane += frame->stride(VideoFrame::kUPlane);
v_plane += frame->stride(VideoFrame::kVPlane);
}
}
} // namespace media
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