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// Copyright (c) 2010 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.
// This tool can be used to measure performace of video frame scaling
// code. It times performance of the scaler with and without filtering.
// It also measures performance of the Skia scaler for comparison.
#include <iostream>
#include <vector>
#include "base/command_line.h"
#include "base/scoped_vector.h"
#include "base/string_number_conversions.h"
#include "base/time.h"
#include "media/base/video_frame.h"
#include "media/base/yuv_convert.h"
#include "skia/ext/platform_canvas.h"
using base::TimeDelta;
using base::TimeTicks;
using media::VideoFrame;
using std::vector;
namespace {
int source_width = 1280;
int source_height = 720;
int dest_width = 1366;
int dest_height = 768;
int num_frames = 500;
int num_buffers = 50;
double BenchmarkSkia() {
vector< scoped_refptr<VideoFrame> > source_frames;
ScopedVector<SkBitmap> dest_frames;
for (int i = 0; i < num_buffers; i++) {
scoped_refptr<VideoFrame> source_frame;
VideoFrame::CreateBlackFrame(source_width, source_height, &source_frame);
source_frames.push_back(source_frame);
SkBitmap* bitmap = new SkBitmap();
bitmap->setConfig(SkBitmap::kARGB_8888_Config,
dest_width, dest_height);
bitmap->allocPixels();
dest_frames.push_back(bitmap);
}
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, source_width, source_height);
bitmap.allocPixels();
TimeTicks start = TimeTicks::HighResNow();
for (int i = 0; i < num_frames; i++) {
scoped_refptr<VideoFrame> source_frame = source_frames[i % num_buffers];
SkBitmap* dest_bitmap = dest_frames[i % num_buffers];
bitmap.lockPixels();
media::ConvertYUVToRGB32(source_frame->data(VideoFrame::kYPlane),
source_frame->data(VideoFrame::kUPlane),
source_frame->data(VideoFrame::kVPlane),
static_cast<uint8*>(bitmap.getPixels()),
source_width,
source_height,
source_frame->stride(VideoFrame::kYPlane),
source_frame->stride(VideoFrame::kUPlane),
bitmap.rowBytes(),
media::YV12);
bitmap.unlockPixels();
SkCanvas canvas(*dest_bitmap);
SkRect rect;
rect.set(0, 0, SkIntToScalar(dest_width),
SkIntToScalar(dest_height));
canvas.clipRect(rect);
SkMatrix matrix;
matrix.reset();
matrix.preScale(SkIntToScalar(dest_width) /
SkIntToScalar(source_width),
SkIntToScalar(dest_height) /
SkIntToScalar(source_height));
SkPaint paint;
paint.setFlags(SkPaint::kFilterBitmap_Flag);
canvas.drawBitmapMatrix(bitmap, matrix, &paint);
}
TimeTicks end = TimeTicks::HighResNow();
return static_cast<double>((end - start).InMilliseconds()) / num_frames;
}
double BenchmarkFilter(media::ScaleFilter filter) {
vector< scoped_refptr<VideoFrame> > source_frames;
vector< scoped_refptr<VideoFrame> > dest_frames;
for (int i = 0; i < num_buffers; i++) {
scoped_refptr<VideoFrame> source_frame;
VideoFrame::CreateBlackFrame(source_width, source_height, &source_frame);
source_frames.push_back(source_frame);
scoped_refptr<VideoFrame> dest_frame;
VideoFrame::CreateFrame(VideoFrame::RGB32,
dest_width,
dest_height,
TimeDelta::FromSeconds(0),
TimeDelta::FromSeconds(0),
&dest_frame);
dest_frames.push_back(dest_frame);
}
TimeTicks start = TimeTicks::HighResNow();
for (int i = 0; i < num_frames; i++) {
scoped_refptr<VideoFrame> source_frame = source_frames[i % num_buffers];
scoped_refptr<VideoFrame> dest_frame = dest_frames[i % num_buffers];
media::ScaleYUVToRGB32(source_frame->data(VideoFrame::kYPlane),
source_frame->data(VideoFrame::kUPlane),
source_frame->data(VideoFrame::kVPlane),
dest_frame->data(0),
source_width,
source_height,
dest_width,
dest_height,
source_frame->stride(VideoFrame::kYPlane),
source_frame->stride(VideoFrame::kUPlane),
dest_frame->stride(0),
media::YV12,
media::ROTATE_0,
filter);
}
TimeTicks end = TimeTicks::HighResNow();
return static_cast<double>((end - start).InMilliseconds()) / num_frames;
}
} // namespace
int main(int argc, const char** argv) {
CommandLine::Init(argc, argv);
const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
if (!cmd_line->args().empty()) {
std::cerr << "Usage: " << argv[0] << " [OPTIONS]\n"
<< " --frames=N "
<< "Number of frames\n"
<< " --buffers=N "
<< "Number of buffers\n"
<< " --src-w=N "
<< "Width of the source image\n"
<< " --src-h=N "
<< "Height of the source image\n"
<< " --dest-w=N "
<< "Width of the destination image\n"
<< " --dest-h=N "
<< "Height of the destination image\n"
<< std::endl;
return 1;
}
std::string source_width_param(cmd_line->GetSwitchValueASCII("src-w"));
if (!source_width_param.empty() &&
!base::StringToInt(source_width_param, &source_width)) {
source_width = 0;
}
std::string source_height_param(cmd_line->GetSwitchValueASCII("src-h"));
if (!source_height_param.empty() &&
!base::StringToInt(source_height_param, &source_height)) {
source_height = 0;
}
std::string dest_width_param(cmd_line->GetSwitchValueASCII("dest-w"));
if (!dest_width_param.empty() &&
!base::StringToInt(dest_width_param, &dest_width)) {
dest_width = 0;
}
std::string dest_height_param(cmd_line->GetSwitchValueASCII("dest-h"));
if (!dest_height_param.empty() &&
!base::StringToInt(dest_height_param, &dest_height)) {
dest_height = 0;
}
std::string frames_param(cmd_line->GetSwitchValueASCII("frames"));
if (!frames_param.empty() &&
!base::StringToInt(frames_param, &num_frames)) {
num_frames = 0;
}
std::string buffers_param(cmd_line->GetSwitchValueASCII("buffers"));
if (!buffers_param.empty() &&
!base::StringToInt(buffers_param, &num_buffers)) {
num_buffers = 0;
}
std::cout << "Source image size: " << source_width
<< "x" << source_height << std::endl;
std::cout << "Destination image size: " << dest_width
<< "x" << dest_height << std::endl;
std::cout << "Number of frames: " << num_frames << std::endl;
std::cout << "Number of buffers: " << num_buffers << std::endl;
std::cout << "Skia: " << BenchmarkSkia()
<< "ms/frame" << std::endl;
std::cout << "No filtering: " << BenchmarkFilter(media::FILTER_NONE)
<< "ms/frame" << std::endl;
std::cout << "Bilinear Vertical: "
<< BenchmarkFilter(media::FILTER_BILINEAR_V)
<< "ms/frame" << std::endl;
std::cout << "Bilinear Horizontal: "
<< BenchmarkFilter(media::FILTER_BILINEAR_H)
<< "ms/frame" << std::endl;
std::cout << "Bilinear: " << BenchmarkFilter(media::FILTER_BILINEAR)
<< "ms/frame" << std::endl;
return 0;
}
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