200 lines
10 KiB
Python
200 lines
10 KiB
Python
|
# encoding: utf-8
|
||
|
|
||
|
"""Objects related to images, audio, and video."""
|
||
|
|
||
|
from __future__ import absolute_import, division, print_function, unicode_literals
|
||
|
|
||
|
import base64
|
||
|
import hashlib
|
||
|
import os
|
||
|
|
||
|
from .compat import is_string
|
||
|
from .opc.constants import CONTENT_TYPE as CT
|
||
|
from .util import lazyproperty
|
||
|
|
||
|
|
||
|
class Video(object):
|
||
|
"""Immutable value object representing a video such as MP4."""
|
||
|
|
||
|
def __init__(self, blob, mime_type, filename):
|
||
|
super(Video, self).__init__()
|
||
|
self._blob = blob
|
||
|
self._mime_type = mime_type
|
||
|
self._filename = filename
|
||
|
|
||
|
@classmethod
|
||
|
def from_blob(cls, blob, mime_type, filename=None):
|
||
|
"""Return a new |Video| object loaded from image binary in *blob*."""
|
||
|
return cls(blob, mime_type, filename)
|
||
|
|
||
|
@classmethod
|
||
|
def from_path_or_file_like(cls, movie_file, mime_type):
|
||
|
"""Return a new |Video| object containing video in *movie_file*.
|
||
|
|
||
|
*movie_file* can be either a path (string) or a file-like
|
||
|
(e.g. StringIO) object.
|
||
|
"""
|
||
|
if is_string(movie_file):
|
||
|
# treat movie_file as a path
|
||
|
with open(movie_file, "rb") as f:
|
||
|
blob = f.read()
|
||
|
filename = os.path.basename(movie_file)
|
||
|
else:
|
||
|
# assume movie_file is a file-like object
|
||
|
blob = movie_file.read()
|
||
|
filename = None
|
||
|
|
||
|
return cls.from_blob(blob, mime_type, filename)
|
||
|
|
||
|
@property
|
||
|
def blob(self):
|
||
|
"""The bytestream of the media "file"."""
|
||
|
return self._blob
|
||
|
|
||
|
@property
|
||
|
def content_type(self):
|
||
|
"""MIME-type of this media, e.g. `'video/mp4'`."""
|
||
|
return self._mime_type
|
||
|
|
||
|
@property
|
||
|
def ext(self):
|
||
|
"""Return the file extension for this video, e.g. 'mp4'.
|
||
|
|
||
|
The extension is that from the actual filename if known. Otherwise
|
||
|
it is the lowercase canonical extension for the video's MIME type.
|
||
|
'vid' is used if the MIME type is 'video/unknown'.
|
||
|
"""
|
||
|
if self._filename:
|
||
|
return os.path.splitext(self._filename)[1].lstrip(".")
|
||
|
return {
|
||
|
CT.ASF: "asf",
|
||
|
CT.AVI: "avi",
|
||
|
CT.MOV: "mov",
|
||
|
CT.MP4: "mp4",
|
||
|
CT.MPG: "mpg",
|
||
|
CT.MS_VIDEO: "avi",
|
||
|
CT.SWF: "swf",
|
||
|
CT.WMV: "wmv",
|
||
|
CT.X_MS_VIDEO: "avi",
|
||
|
}.get(self._mime_type, "vid")
|
||
|
|
||
|
@property
|
||
|
def filename(self):
|
||
|
"""Return a filename.ext string appropriate to this video.
|
||
|
|
||
|
The base filename from the original path is used if this image was
|
||
|
loaded from the filesystem. If no filename is available, such as when
|
||
|
the video object is created from an in-memory stream, the string
|
||
|
'movie.{ext}' is used where 'ext' is suitable to the video format,
|
||
|
such as 'mp4'.
|
||
|
"""
|
||
|
if self._filename is not None:
|
||
|
return self._filename
|
||
|
return "movie.%s" % self.ext
|
||
|
|
||
|
@lazyproperty
|
||
|
def sha1(self):
|
||
|
"""The SHA1 hash digest for the binary "file" of this video.
|
||
|
|
||
|
Example: `'1be010ea47803b00e140b852765cdf84f491da47'`
|
||
|
"""
|
||
|
return hashlib.sha1(self._blob).hexdigest()
|
||
|
|
||
|
|
||
|
SPEAKER_IMAGE_BYTES = base64.b64decode(
|
||
|
"iVBORw0KGgoAAAANSUhEUgAAAHgAAAA3CAYAAADHao5rAAAACXBIWXMAAAsTAAALEwEAmpw"
|
||
|
"YAAAKT2lDQ1BQaG90b3Nob3AgSUNDIHByb2ZpbGUAAHjanVNnVFPpFj333vRCS4iAlEtvUh"
|
||
|
"UIIFJCi4AUkSYqIQkQSoghodkVUcERRUUEG8igiAOOjoCMFVEsDIoK2AfkIaKOg6OIisr74"
|
||
|
"Xuja9a89+bN/rXXPues852zzwfACAyWSDNRNYAMqUIeEeCDx8TG4eQuQIEKJHAAEAizZCFz"
|
||
|
"/SMBAPh+PDwrIsAHvgABeNMLCADATZvAMByH/w/qQplcAYCEAcB0kThLCIAUAEB6jkKmAEB"
|
||
|
"GAYCdmCZTAKAEAGDLY2LjAFAtAGAnf+bTAICd+Jl7AQBblCEVAaCRACATZYhEAGg7AKzPVo"
|
||
|
"pFAFgwABRmS8Q5ANgtADBJV2ZIALC3AMDOEAuyAAgMADBRiIUpAAR7AGDIIyN4AISZABRG8"
|
||
|
"lc88SuuEOcqAAB4mbI8uSQ5RYFbCC1xB1dXLh4ozkkXKxQ2YQJhmkAuwnmZGTKBNA/g88wA"
|
||
|
"AKCRFRHgg/P9eM4Ors7ONo62Dl8t6r8G/yJiYuP+5c+rcEAAAOF0ftH+LC+zGoA7BoBt/qI"
|
||
|
"l7gRoXgugdfeLZrIPQLUAoOnaV/Nw+H48PEWhkLnZ2eXk5NhKxEJbYcpXff5nwl/AV/1s+X"
|
||
|
"48/Pf14L7iJIEyXYFHBPjgwsz0TKUcz5IJhGLc5o9H/LcL//wd0yLESWK5WCoU41EScY5Em"
|
||
|
"ozzMqUiiUKSKcUl0v9k4t8s+wM+3zUAsGo+AXuRLahdYwP2SycQWHTA4vcAAPK7b8HUKAgD"
|
||
|
"gGiD4c93/+8//UegJQCAZkmScQAAXkQkLlTKsz/HCAAARKCBKrBBG/TBGCzABhzBBdzBC/x"
|
||
|
"gNoRCJMTCQhBCCmSAHHJgKayCQiiGzbAdKmAv1EAdNMBRaIaTcA4uwlW4Dj1wD/phCJ7BKL"
|
||
|
"yBCQRByAgTYSHaiAFiilgjjggXmYX4IcFIBBKLJCDJiBRRIkuRNUgxUopUIFVIHfI9cgI5h"
|
||
|
"1xGupE7yAAygvyGvEcxlIGyUT3UDLVDuag3GoRGogvQZHQxmo8WoJvQcrQaPYw2oefQq2gP"
|
||
|
"2o8+Q8cwwOgYBzPEbDAuxsNCsTgsCZNjy7EirAyrxhqwVqwDu4n1Y8+xdwQSgUXACTYEd0I"
|
||
|
"gYR5BSFhMWE7YSKggHCQ0EdoJNwkDhFHCJyKTqEu0JroR+cQYYjIxh1hILCPWEo8TLxB7iE"
|
||
|
"PENyQSiUMyJ7mQAkmxpFTSEtJG0m5SI+ksqZs0SBojk8naZGuyBzmULCAryIXkneTD5DPkG"
|
||
|
"+Qh8lsKnWJAcaT4U+IoUspqShnlEOU05QZlmDJBVaOaUt2ooVQRNY9aQq2htlKvUYeoEzR1"
|
||
|
"mjnNgxZJS6WtopXTGmgXaPdpr+h0uhHdlR5Ol9BX0svpR+iX6AP0dwwNhhWDx4hnKBmbGAc"
|
||
|
"YZxl3GK+YTKYZ04sZx1QwNzHrmOeZD5lvVVgqtip8FZHKCpVKlSaVGyovVKmqpqreqgtV81"
|
||
|
"XLVI+pXlN9rkZVM1PjqQnUlqtVqp1Q61MbU2epO6iHqmeob1Q/pH5Z/YkGWcNMw09DpFGgs"
|
||
|
"V/jvMYgC2MZs3gsIWsNq4Z1gTXEJrHN2Xx2KruY/R27iz2qqaE5QzNKM1ezUvOUZj8H45hx"
|
||
|
"+Jx0TgnnKKeX836K3hTvKeIpG6Y0TLkxZVxrqpaXllirSKtRq0frvTau7aedpr1Fu1n7gQ5"
|
||
|
"Bx0onXCdHZ4/OBZ3nU9lT3acKpxZNPTr1ri6qa6UbobtEd79up+6Ynr5egJ5Mb6feeb3n+h"
|
||
|
"x9L/1U/W36p/VHDFgGswwkBtsMzhg8xTVxbzwdL8fb8VFDXcNAQ6VhlWGX4YSRudE8o9VGj"
|
||
|
"UYPjGnGXOMk423GbcajJgYmISZLTepN7ppSTbmmKaY7TDtMx83MzaLN1pk1mz0x1zLnm+eb"
|
||
|
"15vft2BaeFostqi2uGVJsuRaplnutrxuhVo5WaVYVVpds0atna0l1rutu6cRp7lOk06rntZ"
|
||
|
"nw7Dxtsm2qbcZsOXYBtuutm22fWFnYhdnt8Wuw+6TvZN9un2N/T0HDYfZDqsdWh1+c7RyFD"
|
||
|
"pWOt6azpzuP33F9JbpL2dYzxDP2DPjthPLKcRpnVOb00dnF2e5c4PziIuJS4LLLpc+Lpsbx"
|
||
|
"t3IveRKdPVxXeF60vWdm7Obwu2o26/uNu5p7ofcn8w0nymeWTNz0MPIQ+BR5dE/C5+VMGvf"
|
||
|
"rH5PQ0+BZ7XnIy9jL5FXrdewt6V3qvdh7xc+9j5yn+M+4zw33jLeWV/MN8C3yLfLT8Nvnl+"
|
||
|
"F30N/I/9k/3r/0QCngCUBZwOJgUGBWwL7+Hp8Ib+OPzrbZfay2e1BjKC5QRVBj4KtguXBrS"
|
||
|
"FoyOyQrSH355jOkc5pDoVQfujW0Adh5mGLw34MJ4WHhVeGP45wiFga0TGXNXfR3ENz30T6R"
|
||
|
"JZE3ptnMU85ry1KNSo+qi5qPNo3ujS6P8YuZlnM1VidWElsSxw5LiquNm5svt/87fOH4p3i"
|
||
|
"C+N7F5gvyF1weaHOwvSFpxapLhIsOpZATIhOOJTwQRAqqBaMJfITdyWOCnnCHcJnIi/RNtG"
|
||
|
"I2ENcKh5O8kgqTXqS7JG8NXkkxTOlLOW5hCepkLxMDUzdmzqeFpp2IG0yPTq9MYOSkZBxQq"
|
||
|
"ohTZO2Z+pn5mZ2y6xlhbL+xW6Lty8elQfJa7OQrAVZLQq2QqboVFoo1yoHsmdlV2a/zYnKO"
|
||
|
"ZarnivN7cyzytuQN5zvn//tEsIS4ZK2pYZLVy0dWOa9rGo5sjxxedsK4xUFK4ZWBqw8uIq2"
|
||
|
"Km3VT6vtV5eufr0mek1rgV7ByoLBtQFr6wtVCuWFfevc1+1dT1gvWd+1YfqGnRs+FYmKrhT"
|
||
|
"bF5cVf9go3HjlG4dvyr+Z3JS0qavEuWTPZtJm6ebeLZ5bDpaql+aXDm4N2dq0Dd9WtO319k"
|
||
|
"XbL5fNKNu7g7ZDuaO/PLi8ZafJzs07P1SkVPRU+lQ27tLdtWHX+G7R7ht7vPY07NXbW7z3/"
|
||
|
"T7JvttVAVVN1WbVZftJ+7P3P66Jqun4lvttXa1ObXHtxwPSA/0HIw6217nU1R3SPVRSj9Yr"
|
||
|
"60cOxx++/p3vdy0NNg1VjZzG4iNwRHnk6fcJ3/ceDTradox7rOEH0x92HWcdL2pCmvKaRpt"
|
||
|
"TmvtbYlu6T8w+0dbq3nr8R9sfD5w0PFl5SvNUyWna6YLTk2fyz4ydlZ19fi753GDborZ752"
|
||
|
"PO32oPb++6EHTh0kX/i+c7vDvOXPK4dPKy2+UTV7hXmq86X23qdOo8/pPTT8e7nLuarrlca"
|
||
|
"7nuer21e2b36RueN87d9L158Rb/1tWeOT3dvfN6b/fF9/XfFt1+cif9zsu72Xcn7q28T7xf"
|
||
|
"9EDtQdlD3YfVP1v+3Njv3H9qwHeg89HcR/cGhYPP/pH1jw9DBY+Zj8uGDYbrnjg+OTniP3L"
|
||
|
"96fynQ89kzyaeF/6i/suuFxYvfvjV69fO0ZjRoZfyl5O/bXyl/erA6xmv28bCxh6+yXgzMV"
|
||
|
"70VvvtwXfcdx3vo98PT+R8IH8o/2j5sfVT0Kf7kxmTk/8EA5jz/GMzLdsAAAAgY0hSTQAAe"
|
||
|
"iUAAICDAAD5/wAAgOkAAHUwAADqYAAAOpgAABdvkl/FRgAACJ5JREFUeNrsm19oW9cdx7/n"
|
||
|
"/tO9uleS9ceWZMdO68Su0jiEmNCGLVsDg+J16xhkYx0UM1ayvS19SQZ7WfK6PWR7Gax0S9n"
|
||
|
"24JGFlbGNPIRgEkKWZC1u6rizHMXxv1iWJdnWvbqS7p9z9uDokqzs1bWd84GDQEigez465/"
|
||
|
"x+v3MOYYyBs3shXDAXzOGCOVwwhwvmcMEcLpjDBXPBHC6YwwVzuOAt4dGjRy/MzMwMmqZpS"
|
||
|
"JLkZbPZYn9//8NkMlnmgncwt27d+tKlS5e+W6lUEolEYjQUCoExBsuy4Lru+319fXMjIyNX"
|
||
|
"jh49+m8ueAfRarXUCxcuvHvv3r3DR44ceavRaMCyLDDGIAgCFEVBOBwGIQSFQuH9PXv2PD5"
|
||
|
"16tRvu7u7H3PB2xzXdZXz58//vFKp/Gzfvn1YXFyEYRgwDAOSJEEQBDDG4LouPM+DpmnwPA"
|
||
|
"/5fP73o6Ojf3zttdfGueBtzAcffPCD8fHxi0NDQ1hZWUE6nYYoiiCEQBCEZ14JIfA8D77vA"
|
||
|
"wAmJib+cPLkyctvvvnm33ZLf0i7Se7s7Gz/tWvXvpbL5bC+vo5sNgtFUTb/yU/EthshBAAg"
|
||
|
"yzIAoNls4tChQ6OXL1+GKIreG2+88U8ueJsxPj5+QlXVt0OhEGRZhqIoEEXxGbFPC6aUBuJ"
|
||
|
"VVYVlWThw4MDo2NiYkMlkisPDwx/v9D4Rdotc0zSj9+7dO5RMJgEA4XAYkiRBkqRA9tNNlu"
|
||
|
"VArKIokCQJ8Xgc8Xgc+/fvf/u999778fr6egcXvE0ol8spx3HeNQwDoihClmXIsgxRFCFJ0"
|
||
|
"ucEE0KgqipCodAz0pPJJFKpFGKx2I8uXrz4Qy54m1CpVBK+70MUxUDW0yO1Lbz9XnuUPz26"
|
||
|
"25/JZDLo7OzExMTE4cnJySG+Bm8DarVa1Pd9EEIgy3IwPYuiCFEANFWEIGw2x6PQNA2qqqK"
|
||
|
"dRTDGwBgDpTSQXKvVRj/88MOZoaGhSS74C8a27XA75ZEk6YloBYoswHQNfPy4Fx4JoTdmYj"
|
||
|
"BRhSozsP+ZwCil8DwPlFIkk0kkEglMTEwM5PP5wcHBwTwX/AXhOI5i23bY930wxqAoymbVi"
|
||
|
"jA0/DD+mj8C048iqjMUHYbFRg0n+uaQ0FzQJ5IdxwGlNFi/AaCzsxPpdHr0+vXrN3aq4F2x"
|
||
|
"Bs/Pz/eFQqE/t0egIAjQdR2SQDFVzmKlHoEme1BEH3uyDJFsHFdnX4SLECRRhOM4EAQBhmF"
|
||
|
"A1/UgvUomk4jH4/j0008PeZ4nccFbTKPRCH/00UdHi8Viph1gNZtNUEqhKAp0XUfRNMAYQC"
|
||
|
"ng+0DNAhp1H4s1A3fmkwhrMmKxGGKxGFRVDdZvWZYRiUQQjUZRq9V+Mjc39wIXvIWsra0lx"
|
||
|
"sfHTzx48OAuY+yGKIpQVRX1eh2O4wQBFmMUjsvQ8oCWC5RWGWZmKVyX4e58DLarIBzWnomy"
|
||
|
"23mxoiiIRqPQdR2FQqGfr8FbhOu6SrFYzJim+Y9mswnHcSCKImKxGFZWVmBZFgRBgCQTpPU"
|
||
|
"6LNOCquhgjMERAUIAnzJUWgrmqzJeTclouRSUUrQj8XbQZRgGwuEwFhYW+vgI3iJarZbS2d"
|
||
|
"l5v1Qqwfd9uK4LAEgmk2g0GlhfX99cV0UFL2dNCLSGmtlEvUFg2oBpA5YNmHWCikmgKNLnc"
|
||
|
"uH2VN2udFWr1QQXvEV4nicxxlCv19FsNoOtv0QiAUVRsLq6ikqlAtel2JvycOxFCyulFZh1"
|
||
|
"CqtBNuXaBPV6EyHRhyAIaLVaQST99MZEWzQPsrZ2BKu2bYMQgmq1Cs/z4DgOwuEwMpkMSqU"
|
||
|
"SlpeXwQBoegTfe9XEgayDhaUHWNuoo1YHKus1hEgVuR4GLRxFPB6HrusQRRGU0uBwQLsAsl"
|
||
|
"O3VXdskNVsNtHR0YHl5WU0Gg24rgvGGLLZLCilWFpawuLiIggR0d1l4KffMPH6yz5a5iNUV"
|
||
|
"qcR8ot4+9UKcv0pCOLmlBwKhaBpGjRNC1Kl9p9H07QmD7K2CFVVm2tra0in07AsCysrK0il"
|
||
|
"UnBdF5FIBD09PVhYWMDDhw+RyWTQ07MH/X0qznyripNFhnKNYU8SeOVwL6Idm9+jdFNm+yB"
|
||
|
"AO9CybRumaeLw4cOPueAtIhKJ1Hzf/4phGDe6urowOTmJY8eOBbXk9jRdKBQQiUTQ0dGBeD"
|
||
|
"yOSCyB4z0aZEmErKhoNDfX7v83BXueh2q1ilKpBF7J2sofLQi0p6dn0bZtDAwMYGNjA1NTU"
|
||
|
"/B9H61WC4qioK+vDxsbG5iZmcHdu3dh2zZEUUTL8QFBAYgIQSAolUrBsR1KadCe5NpYXl6G"
|
||
|
"qqp/yuVy/+GCt5C9e/fOy7L8dVmWkcvlMD09jc8++yxYM3VdR29vL+bn53H//n3cunULtm0"
|
||
|
"HGwqu6wY169XVVTiOE4hmjKHRaGB2dhaFQgHHjx+/EQ6H7Z3YT+K5c+d2pGBCCOvu7n48NT"
|
||
|
"X1gFL6bcMwUCgUUCqVgkpUu/Q4NzeHZrOJVquFSCQCwzCCIzuSJMH3fViWBUII2ulXoVDAn"
|
||
|
"Tt3UC6X/3L27NlfaJrW4IK3GFmW3ZdeeilvWda/HMe5u2/fvhFFUWCa5m/279///vDw8K8y"
|
||
|
"mczfCSH56enpr5bL5UC0IAhPSpksCKparRbK5TJmZmZw+/ZtfPLJJ1fPnDnzy506PQO76Nh"
|
||
|
"stVpNFIvFDGNMSKfTxVQqVX66tHnp0qXvjI2NfZ8Q8s3e3l709/ejq6sL0WgUoVAIruuiVq"
|
||
|
"thaWkJ09PTWFpaunL69Olfj4yMXNnJ/fJcXT7L5/ODY2Njb928efPLoii+3t5IkGUZnufBN"
|
||
|
"E2sra1dHR4e/vidd9753cDAQH6nP/Nzebtwdna2//bt269MTk4eKpVKXZ7nSbquW7lcbvrE"
|
||
|
"iRPjBw8enNwtz/rcXx9ljAlPypJ0Nz4fvx+8y+GCuWAOF8zhgjlcMIcL5nDBHC6YC+ZwwRw"
|
||
|
"umLMN+O8AX65uqCMleo4AAAAASUVORK5CYII="
|
||
|
)
|