# ex:ts=4:sw=4:sts=4:et # -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- from __future__ import absolute_import import copy import xml.etree.ElementTree as ET import os import re from svtplay_dl.output import progress_stream, output, ETA, progressbar from svtplay_dl.utils.urllib import urljoin from svtplay_dl.error import UIException, ServiceError from svtplay_dl.fetcher import VideoRetriever class DASHException(UIException): def __init__(self, url, message): self.url = url super(DASHException, self).__init__(message) class LiveDASHException(DASHException): def __init__(self, url): super(LiveDASHException, self).__init__( url, "This is a live DASH stream, and they are not supported.") def templateelemt(element, filename, idnumber): files = [] init = element.attrib["initialization"] media = element.attrib["media"] if "startNumber" in element.attrib: start = int(element.attrib["startNumber"]) else: start = 0 timeline = element.find("{urn:mpeg:dash:schema:mpd:2011}SegmentTimeline") rvalue = timeline.findall(".//{urn:mpeg:dash:schema:mpd:2011}S[@r]") selements = timeline.findall(".//{urn:mpeg:dash:schema:mpd:2011}S") selements.pop() if rvalue: total = int(rvalue[0].attrib["r"]) + len(selements) + 1 name = media.replace("$RepresentationID$", idnumber) files.append(urljoin(filename, init.replace("$RepresentationID$", idnumber))) if "$Time$" in media: time = [] time.append(0) for n in selements: time.append(int(n.attrib["d"])) match = re.search("\$Time\$", name) if match: number = 0 if len(selements) < 3: for n in range(start, start + total): new = name.replace("$Time$", str(n * int(rvalue[0].attrib["d"]))) files.append(urljoin(filename, new)) else: for n in time: number += int(n) new = name.replace("$Time$", str(number)) files.append(urljoin(filename, new)) if "$Number" in name: if re.search("\$Number(\%\d+)d\$", name): vname = name.replace("$Number", "").replace("$", "") for n in range(start, start + total): files.append(urljoin(filename, vname % n)) else: for n in range(start, start + total): newname = name.replace("$Number$", str(n)) files.append(urljoin(filename, newname)) return files def adaptionset(element, url, baseurl=None): streams = {} dirname = os.path.dirname(url) + "/" if baseurl: dirname = urljoin(dirname, baseurl) template = element[0].find("{urn:mpeg:dash:schema:mpd:2011}SegmentTemplate") represtation = element[0].findall(".//{urn:mpeg:dash:schema:mpd:2011}Representation") for i in represtation: files = [] segments = False filename = dirname bitrate = int(int(i.attrib["bandwidth"]) / 1000) idnumber = i.attrib["id"] if i.find("{urn:mpeg:dash:schema:mpd:2011}BaseURL") is not None: filename = urljoin(filename, i.find("{urn:mpeg:dash:schema:mpd:2011}BaseURL").text) if i.find("{urn:mpeg:dash:schema:mpd:2011}SegmentBase") is not None: files.append(filename) if template is not None: segments = True files = templateelemt(template, filename, idnumber) elif i.find("{urn:mpeg:dash:schema:mpd:2011}SegmentTemplate"): segments = True files = templateelemt(i.find("{urn:mpeg:dash:schema:mpd:2011}SegmentTemplate"), filename, idnumber) streams[bitrate] = {"segments": segments, "files": files} return streams def dashparse(options, res, url): streams = {} if not res: return None if res.status_code >= 400: streams[0] = ServiceError("Can't read DASH playlist. {0}".format(res.status_code)) return streams xml = ET.XML(res.text) temp = xml.findall('.//{urn:mpeg:dash:schema:mpd:2011}AdaptationSet[@mimeType="audio/mp4"]') audiofiles = adaptionset(temp, url) temp = xml.findall('.//{urn:mpeg:dash:schema:mpd:2011}AdaptationSet[@mimeType="video/mp4"]') videofiles = adaptionset(temp, url) for i in videofiles.keys(): bitrate = (int(i) + int(list(audiofiles.keys())[0])) options.other = "mp4" options.segments = videofiles[i]["segments"] streams[int(bitrate)] = DASH(copy.copy(options), url, bitrate, cookies=res.cookies, audio=audiofiles[list(audiofiles.keys())[0]]["files"], files=videofiles[i]["files"]) return streams class DASH(VideoRetriever): def name(self): return "dash" def download(self): if self.options.live and not self.options.force: raise LiveDASHException(self.url) if self.options.segments: if self.audio: self._download2(self.audio, audio=True) self._download2(self.files) else: if self.audio: self._download(self.audio, audio=True) self._download(self.url) def _download(self, url, audio=False): cookies = self.kwargs["cookies"] data = self.http.request("get", url, cookies=cookies, headers={'Range': 'bytes=0-8192'}) try: total_size = data.headers['Content-Range'] total_size = total_size[total_size.find("/")+1:] except KeyError: total_size = 0 total_size = int(total_size) bytes_so_far = 8192 if audio: file_d = output(copy.copy(self.options), "m4a") else: file_d = output(self.options, self.options.other) if hasattr(file_d, "read") is False: return file_d.write(data.content) eta = ETA(total_size) while bytes_so_far < total_size: old = bytes_so_far + 1 bytes_so_far = old + 1000000 if bytes_so_far > total_size: bytes_so_far = total_size bytes_range = "bytes=%s-%s" % (old, bytes_so_far) data = self.http.request("get", url, cookies=cookies, headers={'Range': bytes_range}) file_d.write(data.content) if self.options.output != "-" and not self.options.silent: eta.update(old) progressbar(total_size, old, ''.join(["ETA: ", str(eta)])) if self.options.output != "-": file_d.close() progressbar(bytes_so_far, total_size, "ETA: complete") progress_stream.write('\n') self.finished = True def _download2(self, files, audio=False): cookies = self.kwargs["cookies"] if audio: file_d = output(copy.copy(self.options), "m4a") else: file_d = output(self.options, self.options.other) if hasattr(file_d, "read") is False: return eta = ETA(len(files)) n = 1 for i in files: if self.options.output != "-" and not self.options.silent: eta.increment() progressbar(len(files), n, ''.join(['ETA: ', str(eta)])) n += 1 data = self.http.request("get", i, cookies=cookies) if data.status_code == 404: break data = data.content file_d.write(data) if self.options.output != "-": file_d.close() if not self.options.silent: progress_stream.write('\n') self.finished = True