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 sys
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import os
import re
import urllib
import loggable
import urlparse
import subprocess
from operator import itemgetter
GST_SECOND = long(1000000000)
DEFAULT_TIMEOUT = 30
DEFAULT_MAIN_DIR = os.path.expanduser("~/gst-validate/")
DEFAULT_GST_QA_ASSETS = os.path.join(DEFAULT_MAIN_DIR, "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"
KNOWN_ERROR = "Known error"
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class Protocols(object):
HTTP = "http"
FILE = "file"
HLS = "hls"
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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):
path = urlparse.urlparse(url).path
if "win32" in sys.platform:
if path[0] == '/':
return path[1:] # We need to remove the first '/' on windows
return 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, video_restriction=None, audio_restriction=None):
return get_profile_full(FORMATS[combination.container],
FORMATS[combination.vcodec],
FORMATS[combination.acodec],
video_restriction=video_restriction,
audio_restriction=audio_restriction)
##################################################
# Some utilities to parse gst-validate output #
##################################################
def gsttime_from_tuple(stime):
return long((int(stime[0]) * 3600 + int(stime[1]) * 60 + int(stime[2])) * GST_SECOND + int(stime[3]))
timeregex = re.compile(r'(?P<_0>.+):(?P<_1>.+):(?P<_2>.+)\.(?P<_3>.+)')
def parse_gsttimeargs(time):
stime = map(itemgetter(1), sorted(timeregex.match(time).groupdict().items()))
return long((int(stime[0]) * 3600 + int(stime[1]) * 60 + int(stime[2])) * GST_SECOND + int(stime[3]))
def get_duration(media_file):
duration = 0
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, "")
def get_scenarios():
GST_VALIDATE_COMMAND = "gst-validate-1.0"
os.system("%s --scenarios-defs-output-file %s" % (GST_VALIDATE_COMMAND,
))