ref: ccbde503b2ccffdcd94dbadd7d03d045abed3fe1
dir: /test/Rakefile/
require 'open-uri' def raw_dir(size) sprintf("raw/%s", size) end def raw_files(size) (5208..5280).collect {|n| sprintf("raw/%s/big_buck_bunny_%05d.png", size, n)} end # 640x360 directory raw_dir("640x360") rule %r(raw/640x360/big_buck_bunny_[0-9]+\.png) => raw_dir("640x360") do |t| url = sprintf("http://media.xiph.org/BBB/BBB-360-png/%s", t.name.pathmap("%f")) puts "Grabbing #{url}" open(url) do |s| IO.copy_stream(s, t.name) end end file "test_640x360.h264" => raw_files("640x360") do |f| sh "ffmpeg -y -start_number 5208 -i raw/640x360/big_buck_bunny_%05d.png -pix_fmt yuv420p -c:v libx264 -x264-params keyint=40 -profile:v baseline -f rawvideo test_640x360.h264" end # 1920x1080 directory raw_dir("1920x1080") rule %r(raw/1920x1080/big_buck_bunny_[0-9]+\.png) => raw_dir("1920x1080") do |t| url = sprintf("http://media.xiph.org/BBB/BBB-1080-png/%s", t.name.pathmap("%f")) puts "Grabbing #{url}" open(url) do |s| IO.copy_stream(s, t.name) end end file "test_1920x1080.h264" => raw_files("1920x1080") do |f| sh "ffmpeg -y -start_number 5208 -i raw/1920x1080/big_buck_bunny_%05d.png -pix_fmt yuv420p -c:v libx264 -x264-params keyint=40 -profile:v baseline -f rawvideo test_1920x1080.h264" end task :generate_test_data => ["test_640x360.h264", "test_1920x1080.h264"] rule ".yuv" => ".h264" do |t| sh "ffmpeg -y -i #{t.source} -c:v rawvideo -pix_fmt yuv420p #{t.name}" end task :generate_output_data => ["test_640x360.yuv", "test_1920x1080.yuv"] task :clean do FileUtils.rm_rf "raw" FileUtils.rm_f "test_640x360.h264" FileUtils.rm_f "test_1920x1080.h264" FileUtils.rm_f "test_640x360.yuv" FileUtils.rm_f "test_1920x1080.yuv" end task :default => [:generate_test_data]