-from __future__ import unicode_literals
+from __future__ import division, unicode_literals
import base64
import io
from .common import FileDownloader
from .http import HttpFD
+from ..compat import (
+ compat_urlparse,
+ compat_urllib_error,
+)
from ..utils import (
struct_pack,
struct_unpack,
- compat_urlparse,
- format_bytes,
encodeFilename,
sanitize_open,
xpath_text,
if size == 1:
real_size = self.read_unsigned_long_long()
header_end = 16
- return real_size, box_type, self.read(real_size-header_end)
+ return real_size, box_type, self.read(real_size - header_end)
def read_asrt(self):
# version
self.read_unsigned_int() # BootstrapinfoVersion
# Profile,Live,Update,Reserved
- self.read(1)
+ flags = self.read_unsigned_char()
+ live = flags & 0x20 != 0
# time scale
self.read_unsigned_int()
# CurrentMediaTime
return {
'segments': segments,
'fragments': fragments,
+ 'live': live,
}
def read_bootstrap_info(self):
""" Return a list of (segment, fragment) for each fragment in the video """
res = []
segment_run_table = boot_info['segments'][0]
- # I've only found videos with one segment
- segment_run_entry = segment_run_table['segment_run'][0]
- n_frags = segment_run_entry[1]
fragment_run_entry_table = boot_info['fragments'][0]['fragments']
first_frag_number = fragment_run_entry_table[0]['first']
- for (i, frag_number) in zip(range(1, n_frags+1), itertools.count(first_frag_number)):
- res.append((1, frag_number))
+ fragments_counter = itertools.count(first_frag_number)
+ for segment, fragments_count in segment_run_table['segment_run']:
+ for _ in range(fragments_count):
+ res.append((segment, next(fragments_counter)))
+
+ if boot_info['live']:
+ res = res[-2:]
+
return res
-def write_flv_header(stream, metadata):
- """Writes the FLV header and the metadata to stream"""
+def write_unsigned_int(stream, val):
+ stream.write(struct_pack('!I', val))
+
+
+def write_unsigned_int_24(stream, val):
+ stream.write(struct_pack('!I', val)[1:])
+
+
+def write_flv_header(stream):
+ """Writes the FLV header to stream"""
# FLV header
stream.write(b'FLV\x01')
stream.write(b'\x05')
stream.write(b'\x00\x00\x00\x09')
- # FLV File body
stream.write(b'\x00\x00\x00\x00')
- # FLVTAG
- # Script data
- stream.write(b'\x12')
- # Size of the metadata with 3 bytes
- stream.write(struct_pack('!L', len(metadata))[1:])
- stream.write(b'\x00\x00\x00\x00\x00\x00\x00')
- stream.write(metadata)
- # Magic numbers extracted from the output files produced by AdobeHDS.php
- #(https://github.com/K-S-V/Scripts)
- stream.write(b'\x00\x00\x01\x73')
+
+
+def write_metadata_tag(stream, metadata):
+ """Writes optional metadata tag to stream"""
+ SCRIPT_TAG = b'\x12'
+ FLV_TAG_HEADER_LEN = 11
+
+ if metadata:
+ stream.write(SCRIPT_TAG)
+ write_unsigned_int_24(stream, len(metadata))
+ stream.write(b'\x00\x00\x00\x00\x00\x00\x00')
+ stream.write(metadata)
+ write_unsigned_int(stream, FLV_TAG_HEADER_LEN + len(metadata))
def _add_ns(prop):
A downloader for f4m manifests or AdobeHDS.
"""
+ def _get_unencrypted_media(self, doc):
+ media = doc.findall(_add_ns('media'))
+ if not media:
+ self.report_error('No media found')
+ for e in (doc.findall(_add_ns('drmAdditionalHeader')) +
+ doc.findall(_add_ns('drmAdditionalHeaderSet'))):
+ # If id attribute is missing it's valid for all media nodes
+ # without drmAdditionalHeaderId or drmAdditionalHeaderSetId attribute
+ if 'id' not in e.attrib:
+ self.report_error('Missing ID in f4m DRM')
+ media = list(filter(lambda e: 'drmAdditionalHeaderId' not in e.attrib and
+ 'drmAdditionalHeaderSetId' not in e.attrib,
+ media))
+ if not media:
+ self.report_error('Unsupported DRM')
+ return media
+
+ def _get_bootstrap_from_url(self, bootstrap_url):
+ bootstrap = self.ydl.urlopen(bootstrap_url).read()
+ return read_bootstrap_info(bootstrap)
+
+ def _update_live_fragments(self, bootstrap_url, latest_fragment):
+ fragments_list = []
+ retries = 30
+ while (not fragments_list) and (retries > 0):
+ boot_info = self._get_bootstrap_from_url(bootstrap_url)
+ fragments_list = build_fragments_list(boot_info)
+ fragments_list = [f for f in fragments_list if f[1] > latest_fragment]
+ if not fragments_list:
+ # Retry after a while
+ time.sleep(5.0)
+ retries -= 1
+
+ if not fragments_list:
+ self.report_error('Failed to update fragments')
+
+ return fragments_list
+
+ def _parse_bootstrap_node(self, node, base_url):
+ if node.text is None:
+ bootstrap_url = compat_urlparse.urljoin(
+ base_url, node.attrib['url'])
+ boot_info = self._get_bootstrap_from_url(bootstrap_url)
+ else:
+ bootstrap_url = None
+ bootstrap = base64.b64decode(node.text.encode('ascii'))
+ boot_info = read_bootstrap_info(bootstrap)
+ return (boot_info, bootstrap_url)
+
def real_download(self, filename, info_dict):
man_url = info_dict['url']
requested_bitrate = info_dict.get('tbr')
self.to_screen('[download] Downloading f4m manifest')
manifest = self.ydl.urlopen(man_url).read()
- self.report_destination(filename)
- http_dl = HttpQuietDownloader(self.ydl,
- {
- 'continuedl': True,
- 'quiet': True,
- 'noprogress': True,
- 'test': self.params.get('test', False),
- })
doc = etree.fromstring(manifest)
- formats = [(int(f.attrib.get('bitrate', -1)), f) for f in doc.findall(_add_ns('media'))]
+ formats = [(int(f.attrib.get('bitrate', -1)), f)
+ for f in self._get_unencrypted_media(doc)]
if requested_bitrate is None:
# get the best format
formats = sorted(formats, key=lambda f: f[0])
base_url = compat_urlparse.urljoin(man_url, media.attrib['url'])
bootstrap_node = doc.find(_add_ns('bootstrapInfo'))
- if bootstrap_node.text is None:
- bootstrap_url = compat_urlparse.urljoin(
- base_url, bootstrap_node.attrib['url'])
- bootstrap = self.ydl.urlopen(bootstrap_url).read()
+ boot_info, bootstrap_url = self._parse_bootstrap_node(bootstrap_node, base_url)
+ live = boot_info['live']
+ metadata_node = media.find(_add_ns('metadata'))
+ if metadata_node is not None:
+ metadata = base64.b64decode(metadata_node.text.encode('ascii'))
else:
- bootstrap = base64.b64decode(bootstrap_node.text)
- metadata = base64.b64decode(media.find(_add_ns('metadata')).text)
- boot_info = read_bootstrap_info(bootstrap)
+ metadata = None
fragments_list = build_fragments_list(boot_info)
if self.params.get('test', False):
# For some akamai manifests we'll need to add a query to the fragment url
akamai_pv = xpath_text(doc, _add_ns('pv-2.0'))
+ self.report_destination(filename)
+ http_dl = HttpQuietDownloader(
+ self.ydl,
+ {
+ 'continuedl': True,
+ 'quiet': True,
+ 'noprogress': True,
+ 'ratelimit': self.params.get('ratelimit', None),
+ 'test': self.params.get('test', False),
+ }
+ )
tmpfilename = self.temp_name(filename)
(dest_stream, tmpfilename) = sanitize_open(tmpfilename, 'wb')
- write_flv_header(dest_stream, metadata)
+
+ write_flv_header(dest_stream)
+ if not live:
+ write_metadata_tag(dest_stream, metadata)
# This dict stores the download progress, it's updated by the progress
# hook
state = {
+ 'status': 'downloading',
'downloaded_bytes': 0,
- 'frag_counter': 0,
+ 'frag_index': 0,
+ 'frag_count': total_frags,
+ 'filename': filename,
+ 'tmpfilename': tmpfilename,
}
start = time.time()
- def frag_progress_hook(status):
- frag_total_bytes = status.get('total_bytes', 0)
- estimated_size = (state['downloaded_bytes'] +
- (total_frags - state['frag_counter']) * frag_total_bytes)
- if status['status'] == 'finished':
+ def frag_progress_hook(s):
+ if s['status'] not in ('downloading', 'finished'):
+ return
+
+ frag_total_bytes = s.get('total_bytes', 0)
+ if s['status'] == 'finished':
state['downloaded_bytes'] += frag_total_bytes
- state['frag_counter'] += 1
- progress = self.calc_percent(state['frag_counter'], total_frags)
- byte_counter = state['downloaded_bytes']
+ state['frag_index'] += 1
+
+ estimated_size = (
+ (state['downloaded_bytes'] + frag_total_bytes) /
+ (state['frag_index'] + 1) * total_frags)
+ time_now = time.time()
+ state['total_bytes_estimate'] = estimated_size
+ state['elapsed'] = time_now - start
+
+ if s['status'] == 'finished':
+ progress = self.calc_percent(state['frag_index'], total_frags)
else:
- frag_downloaded_bytes = status['downloaded_bytes']
- byte_counter = state['downloaded_bytes'] + frag_downloaded_bytes
+ frag_downloaded_bytes = s['downloaded_bytes']
frag_progress = self.calc_percent(frag_downloaded_bytes,
- frag_total_bytes)
- progress = self.calc_percent(state['frag_counter'], total_frags)
+ frag_total_bytes)
+ progress = self.calc_percent(state['frag_index'], total_frags)
progress += frag_progress / float(total_frags)
- eta = self.calc_eta(start, time.time(), estimated_size, byte_counter)
- self.report_progress(progress, format_bytes(estimated_size),
- status.get('speed'), eta)
+ state['eta'] = self.calc_eta(
+ start, time_now, estimated_size, state['downloaded_bytes'] + frag_downloaded_bytes)
+ state['speed'] = s.get('speed')
+ self._hook_progress(state)
+
http_dl.add_progress_hook(frag_progress_hook)
frags_filenames = []
- for (seg_i, frag_i) in fragments_list:
+ while fragments_list:
+ seg_i, frag_i = fragments_list.pop(0)
name = 'Seg%d-Frag%d' % (seg_i, frag_i)
url = base_url + name
if akamai_pv:
url += '?' + akamai_pv.strip(';')
+ if info_dict.get('extra_param_to_segment_url'):
+ url += info_dict.get('extra_param_to_segment_url')
frag_filename = '%s-%s' % (tmpfilename, name)
- success = http_dl.download(frag_filename, {'url': url})
- if not success:
- return False
- with open(frag_filename, 'rb') as down:
- down_data = down.read()
- reader = FlvReader(down_data)
- while True:
- _, box_type, box_data = reader.read_box_info()
- if box_type == b'mdat':
- dest_stream.write(box_data)
- break
- frags_filenames.append(frag_filename)
+ try:
+ success = http_dl.download(frag_filename, {'url': url})
+ if not success:
+ return False
+ with open(frag_filename, 'rb') as down:
+ down_data = down.read()
+ reader = FlvReader(down_data)
+ while True:
+ _, box_type, box_data = reader.read_box_info()
+ if box_type == b'mdat':
+ dest_stream.write(box_data)
+ break
+ if live:
+ os.remove(frag_filename)
+ else:
+ frags_filenames.append(frag_filename)
+ except (compat_urllib_error.HTTPError, ) as err:
+ if live and (err.code == 404 or err.code == 410):
+ # We didn't keep up with the live window. Continue
+ # with the next available fragment.
+ msg = 'Fragment %d unavailable' % frag_i
+ self.report_warning(msg)
+ fragments_list = []
+ else:
+ raise
+
+ if not fragments_list and live and bootstrap_url:
+ fragments_list = self._update_live_fragments(bootstrap_url, frag_i)
+ total_frags += len(fragments_list)
+ if fragments_list and (fragments_list[0][1] > frag_i + 1):
+ msg = 'Missed %d fragments' % (fragments_list[0][1] - (frag_i + 1))
+ self.report_warning(msg)
dest_stream.close()
- self.report_finish(format_bytes(state['downloaded_bytes']), time.time() - start)
+ elapsed = time.time() - start
self.try_rename(tmpfilename, filename)
for frag_file in frags_filenames:
os.remove(frag_file)
'total_bytes': fsize,
'filename': filename,
'status': 'finished',
+ 'elapsed': elapsed,
})
return True
Rapsys Git / youtubedl / blobdiff