diff options
Diffstat (limited to 'youtube_dl/downloader/dash.py')
| -rw-r--r-- | youtube_dl/downloader/dash.py | 83 |
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 |