1 # Copyright (c) 2015 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 from native_Benchmarks_common import * 6 from webm import webm 7 8 class vp8(object): 9 """Build webm codec (vpxenc/vpxdec) and run them on client""" 10 def __init__(self, scratch_srv, scratch_cli, client, args): 11 # Instantiating webm builds the codec. 12 self.webm = webm(scratch_srv, scratch_cli, client, args) 13 self.client = client 14 self.scratch_cli = scratch_cli 15 16 # download 17 src = '%s/vp8.webm' % SERVER_TEST_ROOT 18 dst = '%s/vp8.webm' % scratch_cli 19 rcp_check(client, src, dst, 20 'Error occurred while sending vp8.webm to client.\n') 21 22 def run(self): 23 """Returns perf_value tuples""" 24 # run decoder 25 cmd = ('%s --summary %s/vp8.webm -o %s/vp8.yuv 2>&1' % 26 (self.webm.vpxdec, self.scratch_cli, self.scratch_cli)) 27 declog = run_check(self.client, cmd, "Error occurred while running vp8") 28 # run encoder 29 cmd = (('%s %s/vp8.yuv -o /dev/null --codec=vp8 --i420 -w 1280' + 30 ' -h 720 --good --cpu-used=0 --target-bitrate=2000 2>&1') % 31 (self.webm.vpxenc, self.scratch_cli)) 32 enclog = run_check(self.client, cmd, 33 "Error occurred while running vp8enc") 34 return self.parse(declog, enclog) 35 36 def parse(self, dec, enc): 37 """Translate logs into perf_values tuples. 38 @param dec: logs from decoder 39 @param enc: logs from encoder 40 """ 41 return [{'description': 'VP8', 42 'graph': 'decode', 43 'value': dec.split()[-2][1:], 44 'units': 'fps'}, 45 {'description': 'VP8', 46 'graph': 'encode', 47 'value': enc.split()[-2][1:], 48 'units': 'fps'}] 49 50 def __del__(self): 51 run_check(self.client, 'rm -f %s/vp8.yuv' % self.scratch_cli, 52 "Error occurred while cleaning up") 53
