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-rw-r--r--youtube_dl/downloader/dash.py83
1 files changed, 37 insertions, 46 deletions
diff --git a/youtube_dl/downloader/dash.py b/youtube_dl/downloader/dash.py
index b0070aead..4f3eeb386 100644
--- a/youtube_dl/downloader/dash.py
+++ b/youtube_dl/downloader/dash.py
@@ -1,67 +1,58 @@
from __future__ import unicode_literals
+import os
import re
-from .common import FileDownloader
-from ..utils import sanitized_Request
+from .fragment import FragmentFD
+from ..utils import (
+ sanitize_open,
+ encodeFilename,
+)
-class DashSegmentsFD(FileDownloader):
+class DashSegmentsFD(FragmentFD):
"""
Download segments in a DASH manifest
"""
- def real_download(self, filename, info_dict):
- self.report_destination(filename)
- tmpfilename = self.temp_name(filename)
- base_url = info_dict['url']
- segment_urls = info_dict['segment_urls']
-
- is_test = self.params.get('test', False)
- remaining_bytes = self._TEST_FILE_SIZE if is_test else None
- byte_counter = 0
- def append_url_to_file(outf, target_url, target_name, remaining_bytes=None):
- self.to_screen('[DashSegments] %s: Downloading %s' % (info_dict['id'], target_name))
- req = sanitized_Request(target_url)
- if remaining_bytes is not None:
- req.add_header('Range', 'bytes=0-%d' % (remaining_bytes - 1))
+ FD_NAME = 'dashsegments'
- data = self.ydl.urlopen(req).read()
+ def real_download(self, filename, info_dict):
+ base_url = info_dict['url']
+ segment_urls = [info_dict['segment_urls'][0]] if self.params.get('test', False) else info_dict['segment_urls']
+ initialization_url = info_dict.get('initialization_url')
- if remaining_bytes is not None:
- data = data[:remaining_bytes]
+ ctx = {
+ 'filename': filename,
+ 'total_frags': len(segment_urls) + (1 if initialization_url else 0),
+ }
- outf.write(data)
- return len(data)
+ self._prepare_and_start_frag_download(ctx)
def combine_url(base_url, target_url):
if re.match(r'^https?://', target_url):
return target_url
return '%s%s%s' % (base_url, '' if base_url.endswith('/') else '/', target_url)
- with open(tmpfilename, 'wb') as outf:
- if info_dict.get('initialization_url'):
- append_url_to_file(
- outf, combine_url(base_url, info_dict['initialization_url']),
- 'initialization segment')
- for i, segment_url in enumerate(segment_urls):
- segment_len = append_url_to_file(
- outf, combine_url(base_url, segment_url),
- 'segment %d / %d' % (i + 1, len(segment_urls)),
- remaining_bytes)
- byte_counter += segment_len
- if remaining_bytes is not None:
- remaining_bytes -= segment_len
- if remaining_bytes <= 0:
- break
-
- self.try_rename(tmpfilename, filename)
-
- self._hook_progress({
- 'downloaded_bytes': byte_counter,
- 'total_bytes': byte_counter,
- 'filename': filename,
- 'status': 'finished',
- })
+ segments_filenames = []
+ def append_url_to_file(target_url, target_filename):
+ success = ctx['dl'].download(target_filename, {'url': combine_url(base_url, target_url)})
+ if not success:
+ return False
+ down, target_sanitized = sanitize_open(target_filename, 'rb')
+ ctx['dest_stream'].write(down.read())
+ down.close()
+ segments_filenames.append(target_sanitized)
+
+ if initialization_url:
+ append_url_to_file(initialization_url, ctx['tmpfilename'] + '-Init')
+ for i, segment_url in enumerate(segment_urls):
+ segment_filename = '%s-Seg%d' % (ctx['tmpfilename'], i)
+ append_url_to_file(segment_url, segment_filename)
+
+ self._finish_frag_download(ctx)
+
+ for segment_file in segments_filenames:
+ os.remove(encodeFilename(segment_file))
return True