gstreamer/validate/tools/launcher/utils.py

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2013-12-31 10:45:07 +00:00
#!/usr/bin/python
#
# Copyright (c) 2013,Thibault Saunier <thibault.saunier@collabora.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
# Boston, MA 02110-1301, USA.
""" Some utilies. """
import os
import urllib
import loggable
import urlparse
import subprocess
GST_SECOND = 1000000000
DEFAULT_TIMEOUT = 10
DEFAULT_GST_QA_ASSETS = os.path.join(os.path.expanduser('~'), "Videos",
"gst-qa-assets")
DISCOVERER_COMMAND = "gst-discoverer-1.0"
DURATION_TOLERANCE = GST_SECOND / 2
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class Result(object):
NOT_RUN = "Not run"
FAILED = "Failed"
TIMEOUT = "Timeout"
PASSED = "Passed"
class Colors(object):
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'
def desactivate_colors():
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Colors.HEADER = ''
Colors.OKBLUE = ''
Colors.OKGREEN = ''
Colors.WARNING = ''
Colors.FAIL = ''
Colors.ENDC = ''
def mkdir(directory):
try:
os.makedirs(directory)
except os.error:
pass
def which(name):
result = []
exts = filter(None, os.environ.get('PATHEXT', '').split(os.pathsep))
path = os.environ.get('PATH', None)
if path is None:
return []
for p in os.environ.get('PATH', '').split(os.pathsep):
p = os.path.join(p, name)
if os.access(p, os.X_OK):
result.append(p)
for e in exts:
pext = p + e
if os.access(pext, os.X_OK):
result.append(pext)
return result
def get_color_for_result(result):
if result is Result.FAILED:
color = Colors.FAIL
elif result is Result.TIMEOUT:
color = Colors.WARNING
elif result is Result.PASSED:
color = Colors.OKGREEN
else:
color = Colors.OKBLUE
return color
def printc(message, color="", title=False):
if title:
length = 0
for l in message.split("\n"):
if len(l) > length:
length = len(l)
if length == 0:
length = len(message)
message = length * '=' + "\n" + str(message) + "\n" + length * '='
if hasattr(message, "result") and color == '':
color = get_color_for_result(message.result)
print color + str(message) + Colors.ENDC
def launch_command(command, color=None):
printc(command, Colors.OKGREEN, True)
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os.system(command)
def path2url(path):
return urlparse.urljoin('file:', urllib.pathname2url(path))
def url2path(url):
return urlparse.urlparse(url).path
def isuri(string):
url = urlparse.urlparse(string)
if url.scheme != "" and url.scheme != "":
return True
return False
##############################
# Encoding related utils #
##############################
class MediaFormatCombination(object):
def __str__(self):
return "%s and %s in %s" % (self.acodec, self.vcodec, self.container)
def __init__(self, container, acodec, vcodec):
self.container = container
self.acodec = acodec
self.vcodec = vcodec
FORMATS = {"aac": "audio/mpeg,mpegversion=4",
"ac3": "audio/x-ac3",
"vorbis": "audio/x-vorbis",
"mp3": "audio/mpeg,mpegversion=1,layer=3",
"h264": "video/x-h264",
"vp8": "video/x-vp8",
"theora": "video/x-theora",
"ogg": "application/ogg",
"mkv": "video/x-matroska",
"mp4": "video/quicktime,variant=iso;",
"webm": "video/webm"}
def get_profile_full(muxer, venc, aenc, video_restriction=None,
audio_restriction=None,
audio_presence=0, video_presence=0):
ret = "\""
if muxer:
ret += muxer
ret += ":"
if venc:
if video_restriction is not None:
ret = ret + video_restriction + '->'
ret += venc
if video_presence:
ret = ret + '|' + str(video_presence)
if aenc:
ret += ":"
if audio_restriction is not None:
ret = ret + audio_restriction + '->'
ret += aenc
if audio_presence:
ret = ret + '|' + str(audio_presence)
ret += "\""
return ret.replace("::", ":")
def get_profile(combination):
return get_profile_full(FORMATS[combination.container],
FORMATS[combination.vcodec],
FORMATS[combination.acodec],
video_restriction="video/x-raw,format=I420")
##################################################
# Some utilities to parse gst-validate output #
##################################################
def _parse_position(p):
def parse_gsttimeargs(time):
return int(time.split(":")[0]) * 3600 + int(time.split(":")[1]) * 60 + int(time.split(":")[2].split(".")[0]) * 60
start_stop = p.replace("<position: ", '').replace("/>", "").split(" duration: ")
if len(start_stop) < 2:
loggable.warning("utils", "Got a unparsable value: %s" % p)
return 0, 0
if " speed: "in start_stop[1]:
start_stop[1] = start_stop[1].split("speed: ")[0]
return parse_gsttimeargs(start_stop[0]), parse_gsttimeargs(start_stop[1])
def _parse_buffering(b):
return b.split("buffering... ")[1].split("%")[0], 100
def _get_position(test):
position = duration = -1
test.reporter.out.seek(0)
m = None
for l in reversed(test.reporter.out.readlines()):
l = l.lower()
if "<position:" in l or "buffering" in l:
m = l
break
if m is None:
loggable.debug("utils", "Could not fine any positionning info")
return position, duration
for j in m.split("\r"):
if j.startswith("<position:") and j.endswith("/>"):
position, duration = _parse_position(j)
elif j.startswith("buffering") and j.endswith("%"):
position, duration = _parse_buffering(j)
return position, duration
def get_current_position(test, max_passed_stop=0.5):
position, duration = _get_position(test)
if position > duration + max_passed_stop:
loggable.warning("utils", "Position > duration -> Returning -1")
return -1
return position
def get_current_size(test):
position = get_current_position(test)
if position is -1:
return -1
size = os.stat(urlparse.urlparse(test.dest_file).path).st_size
loggable.debug("utils", "Size: %s" % size)
return size
def get_duration(media_file):
duration = 0
def parse_gsttimeargs(time):
stime = time.split(":")
sns = stime[2].split(".")
stime[2] = sns[0]
stime.append(sns[1])
return (int(stime[0]) * 3600 + int(stime[1]) * 60 + int(stime[2]) * 60) * GST_SECOND + int(stime[3])
try:
res = subprocess.check_output([DISCOVERER_COMMAND, media_file])
except subprocess.CalledProcessError:
# gst-media-check returns !0 if seeking is not possible, we do not care in that case.
pass
for l in res.split('\n'):
if "Duration: " in l:
duration = parse_gsttimeargs(l.replace("Duration: ", ""))
break
return duration
def compare_rendered_with_original(orig_duration, dest_file, tolerance=DURATION_TOLERANCE):
duration = get_duration(dest_file)
if orig_duration - tolerance >= duration >= orig_duration + tolerance:
return (Result.FAILED, "Duration of encoded file is "
" wrong (%s instead of %s)" %
(orig_duration / GST_SECOND,
duration / GST_SECOND),
"wrong-duration")
else:
return (Result.PASSED, "")