mirror of
https://github.com/spaam/svtplay-dl.git
synced 2024-11-30 23:24:16 +01:00
336 lines
9.3 KiB
Python
336 lines
9.3 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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from __future__ import absolute_import
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import base64
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import struct
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import logging
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import binascii
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import copy
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import xml.etree.ElementTree as ET
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from svtplay_dl.output import progressbar, progress_stream, ETA, output
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from svtplay_dl.utils import is_py2_old, is_py2
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from svtplay_dl.utils.urllib import urlparse
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from svtplay_dl.error import UIException
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from svtplay_dl.fetcher import VideoRetriever
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from svtplay_dl.error import ServiceError
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log = logging.getLogger('svtplay_dl')
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if is_py2:
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def bytes(string=None, encoding="ascii"):
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if string is None:
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return ""
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return string
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def _chr(temp):
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return temp
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else:
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def _chr(temp):
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return chr(temp)
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class HDSException(UIException):
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def __init__(self, url, message):
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self.url = url
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super(HDSException, self).__init__(message)
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class LiveHDSException(HDSException):
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def __init__(self, url):
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super(LiveHDSException, self).__init__(
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url, "This is a live HDS stream, and they are not supported.")
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def hdsparse(options, res, manifest):
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streams = {}
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bootstrap = {}
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if res.status_code >= 400:
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streams[0] = ServiceError("Can't read HDS playlist. {0}".format(res.status_code))
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return streams
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data = res.text
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if is_py2 and isinstance(data, unicode):
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data = data.encode("utf-8")
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xml = ET.XML(data)
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if is_py2_old:
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bootstrapIter = xml.getiterator("{http://ns.adobe.com/f4m/1.0}bootstrapInfo")
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mediaIter = xml.getiterator("{http://ns.adobe.com/f4m/1.0}media")
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else:
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bootstrapIter = xml.iter("{http://ns.adobe.com/f4m/1.0}bootstrapInfo")
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mediaIter = xml.iter("{http://ns.adobe.com/f4m/1.0}media")
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if xml.find("{http://ns.adobe.com/f4m/1.0}drmAdditionalHeader") is not None:
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streams[0] = ServiceError("HDS DRM protected content.")
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return streams
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for i in bootstrapIter:
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if "id" in i.attrib:
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bootstrap[i.attrib["id"]] = i.text
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else:
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bootstrap["0"] = i.text
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parse = urlparse(manifest)
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querystring = parse.query
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manifest = "%s://%s%s" % (parse.scheme, parse.netloc, parse.path)
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for i in mediaIter:
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bootstrapid = bootstrap[i.attrib["bootstrapInfoId"]]
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streams[int(i.attrib["bitrate"])] = HDS(copy.copy(options), i.attrib["url"], i.attrib["bitrate"], manifest=manifest, bootstrap=bootstrapid,
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metadata=i.find("{http://ns.adobe.com/f4m/1.0}metadata").text, querystring=querystring, cookies=res.cookies)
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return streams
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class HDS(VideoRetriever):
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def name(self):
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return "hds"
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def download(self):
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if self.options.live and not self.options.force:
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raise LiveHDSException(self.url)
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querystring = self.kwargs["querystring"]
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cookies = self.kwargs["cookies"]
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bootstrap = base64.b64decode(self.kwargs["bootstrap"])
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box = readboxtype(bootstrap, 0)
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antal = None
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if box[2] == b"abst":
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antal = readbox(bootstrap, box[0])
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baseurl = self.kwargs["manifest"][0:self.kwargs["manifest"].rfind("/")]
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file_d = output(self.options, "flv")
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if hasattr(file_d, "read") is False:
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return
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metasize = struct.pack(">L", len(base64.b64decode(self.kwargs["metadata"])))[1:]
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file_d.write(binascii.a2b_hex(b"464c560105000000090000000012"))
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file_d.write(metasize)
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file_d.write(binascii.a2b_hex(b"00000000000000"))
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file_d.write(base64.b64decode(self.kwargs["metadata"]))
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file_d.write(binascii.a2b_hex(b"00000000"))
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i = 1
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start = antal[1]["first"]
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total = antal[1]["total"]
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eta = ETA(total)
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while i <= total:
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url = "%s/%sSeg1-Frag%s?%s" % (baseurl, self.url, start, querystring)
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if self.options.output != "-" and not self.options.silent:
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eta.update(i)
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progressbar(total, i, ''.join(["ETA: ", str(eta)]))
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data = self.http.request("get", url, cookies=cookies)
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if data.status_code == 404:
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break
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data = data.content
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number = decode_f4f(i, data)
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file_d.write(data[number:])
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i += 1
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start += 1
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if self.options.output != "-":
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file_d.close()
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if not self.options.silent:
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progress_stream.write('\n')
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self.finished = True
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def readbyte(data, pos):
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return struct.unpack("B", bytes(_chr(data[pos]), "ascii"))[0]
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def read16(data, pos):
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endpos = pos + 2
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return struct.unpack(">H", data[pos:endpos])[0]
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def read24(data, pos):
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end = pos + 3
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return struct.unpack(">L", "\x00" + data[pos:end])[0]
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def read32(data, pos):
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end = pos + 4
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return struct.unpack(">i", data[pos:end])[0]
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def readu32(data, pos):
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end = pos + 4
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return struct.unpack(">I", data[pos:end])[0]
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def read64(data, pos):
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end = pos + 8
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return struct.unpack(">Q", data[pos:end])[0]
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def readstring(data, pos):
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length = 0
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while bytes(_chr(data[pos + length]), "ascii") != b"\x00":
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length += 1
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endpos = pos + length
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string = data[pos:endpos]
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pos += length + 1
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return pos, string
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def readboxtype(data, pos):
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boxsize = read32(data, pos)
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tpos = pos + 4
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endpos = tpos + 4
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boxtype = data[tpos:endpos]
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if boxsize > 1:
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boxsize -= 8
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pos += 8
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return pos, boxsize, boxtype
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# Note! A lot of variable assignments are commented out. These are
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# accessible values that we currently don't use.
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def readbox(data, pos):
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# version = readbyte(data, pos)
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pos += 1
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# flags = read24(data, pos)
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pos += 3
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# bootstrapversion = read32(data, pos)
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pos += 4
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# byte = readbyte(data, pos)
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pos += 1
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# profile = (byte & 0xC0) >> 6
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# live = (byte & 0x20) >> 5
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# update = (byte & 0x10) >> 4
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# timescale = read32(data, pos)
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pos += 4
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# currentmediatime = read64(data, pos)
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pos += 8
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# smptetimecodeoffset = read64(data, pos)
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pos += 8
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temp = readstring(data, pos)
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# movieidentifier = temp[1]
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pos = temp[0]
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serverentrycount = readbyte(data, pos)
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pos += 1
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serverentrytable = []
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i = 0
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while i < serverentrycount:
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temp = readstring(data, pos)
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serverentrytable.append(temp[1])
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pos = temp[0]
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i += 1
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qualityentrycount = readbyte(data, pos)
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pos += 1
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qualityentrytable = []
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i = 0
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while i < qualityentrycount:
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temp = readstring(data, pos)
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qualityentrytable.append(temp[1])
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pos = temp[0]
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i += 1
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tmp = readstring(data, pos)
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# drm = tmp[1]
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pos = tmp[0]
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tmp = readstring(data, pos)
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# metadata = tmp[1]
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pos = tmp[0]
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segmentruntable = readbyte(data, pos)
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pos += 1
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if segmentruntable > 0:
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tmp = readboxtype(data, pos)
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boxtype = tmp[2]
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boxsize = tmp[1]
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pos = tmp[0]
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if boxtype == b"asrt":
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antal = readasrtbox(data, pos)
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pos += boxsize
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fragRunTableCount = readbyte(data, pos)
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pos += 1
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i = 0
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first = 1
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while i < fragRunTableCount:
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tmp = readboxtype(data, pos)
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boxtype = tmp[2]
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boxsize = tmp[1]
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pos = tmp[0]
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if boxtype == b"afrt":
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first = readafrtbox(data, pos)
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pos += boxsize
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i += 1
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antal[1]["first"] = first
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return antal
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# Note! A lot of variable assignments are commented out. These are
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# accessible values that we currently don't use.
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def readafrtbox(data, pos):
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# version = readbyte(data, pos)
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pos += 1
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# flags = read24(data, pos)
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pos += 3
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# timescale = read32(data, pos)
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pos += 4
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qualityentry = readbyte(data, pos)
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pos += 1
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i = 0
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while i < qualityentry:
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temp = readstring(data, pos)
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# qualitysegmulti = temp[1]
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pos = temp[0]
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i += 1
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fragrunentrycount = read32(data, pos)
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pos += 4
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i = 0
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first = 1
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skip = False
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while i < fragrunentrycount:
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firstfragment = readu32(data, pos)
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if not skip:
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first = firstfragment
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skip = True
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pos += 4
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# timestamp = read64(data, pos)
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pos += 8
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# duration = read32(data, pos)
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pos += 4
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i += 1
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return first
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# Note! A lot of variable assignments are commented out. These are
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# accessible values that we currently don't use.
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def readasrtbox(data, pos):
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# version = readbyte(data, pos)
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pos += 1
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# flags = read24(data, pos)
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pos += 3
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qualityentrycount = readbyte(data, pos)
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pos += 1
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qualitysegmentmodifers = []
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i = 0
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while i < qualityentrycount:
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temp = readstring(data, pos)
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qualitysegmentmodifers.append(temp[1])
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pos = temp[0]
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i += 1
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seqCount = read32(data, pos)
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pos += 4
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ret = {}
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i = 0
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while i < seqCount:
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firstseg = read32(data, pos)
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pos += 4
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fragPerSeg = read32(data, pos)
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pos += 4
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tmp = i + 1
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ret[tmp] = {"first": firstseg, "total": fragPerSeg}
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i += 1
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return ret
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def decode_f4f(fragID, fragData):
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start = fragData.find(b"mdat") + 4
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if fragID > 1:
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tagLen, = struct.unpack_from(">L", fragData, start)
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tagLen &= 0x00ffffff
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start += tagLen + 11 + 4
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return start
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