mirror of
https://github.com/spaam/svtplay-dl.git
synced 2024-11-25 04:35:45 +01:00
287 lines
7.7 KiB
Python
287 lines
7.7 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 sys
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import base64
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import re
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import struct
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import logging
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import binascii
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import xml.etree.ElementTree as ET
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from svtplay_dl.output import progressbar, progress_stream, ETA
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from svtplay_dl.utils import get_http_data, select_quality, is_py2_old, is_py2, is_py3
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from svtplay_dl.error import UIException
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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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if is_py3:
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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 download_hds(options, url):
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data = get_http_data(url)
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streams = {}
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bootstrap = {}
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xml = ET.XML(data)
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if options.live and not options.force:
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raise LiveHDSException(url)
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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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for i in bootstrapIter:
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bootstrap[i.attrib["id"]] = i.text
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for i in mediaIter:
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streams[int(i.attrib["bitrate"])] = {"url": i.attrib["url"], "bootstrapInfoId": i.attrib["bootstrapInfoId"], "metadata": i.find("{http://ns.adobe.com/f4m/1.0}metadata").text}
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test = select_quality(options, streams)
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bootstrap = base64.b64decode(bootstrap[test["bootstrapInfoId"]])
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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 = url[0:url.rfind("/")]
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i = 1
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if options.output != "-":
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extension = re.search(r"(\.[a-z0-9]+)$", options.output)
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if not extension:
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options.output = "%s.flv" % options.output
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log.info("Outfile: %s", options.output)
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file_d = open(options.output, "wb")
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else:
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file_d = sys.stdout
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metasize = struct.pack(">L", len(base64.b64decode(test["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(test["metadata"]))
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file_d.write(binascii.a2b_hex(b"00000000"))
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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" % (baseurl, test["url"], i)
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if options.output != "-":
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eta.update(i)
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progressbar(total, i, ''.join(["ETA: ", str(eta)]))
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data = get_http_data(url)
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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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if options.output != "-":
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file_d.close()
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progress_stream.write('\n')
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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 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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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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readafrtbox(data, pos)
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pos += boxsize
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i += 1
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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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while i < fragrunentrycount:
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#firstfragment = read32(data, pos)
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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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# 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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