mirror of
https://github.com/spaam/svtplay-dl.git
synced 2024-11-28 06:04:17 +01:00
259 lines
6.8 KiB
Python
259 lines
6.8 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 time
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from datetime import timedelta
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import xml.etree.ElementTree as ET
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from svtplay.output import progressbar, progress_stream
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from svtplay.utils import get_http_data, select_quality
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log = logging.getLogger('svtplay_dl')
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def download_hds(options, url, swf=None):
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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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prefix = xml.find("{http://ns.adobe.com/f4m/1.0}id").text
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if sys.version_info < (2, 7):
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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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if box[2] == "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("(\.[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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file_d.write(binascii.a2b_hex(b"464c56010500000009000000001200010c00000000000000"))
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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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start = time.time()
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estimated = ""
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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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progressbar(total, i, estimated)
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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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now = time.time()
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dt = now - start
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et = dt / (i + 1) * total
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rt = et - dt
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td = timedelta(seconds = int(rt))
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estimated = "Estimated Remaining: " + str(td)
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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", data[pos])[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 (data[pos + length] != "\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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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 == "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 == "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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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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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("mdat") + 4
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if (fragID > 1):
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for dummy in range(2):
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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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