X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fdownloader%2Fdash.py;h=94a13a5433b7f948623e6a3bc3ccf2dd490b5bba;hb=75a24854073e590f4efc9f037b57dee348f52b61;hp=e087cf142b1a422e644bbe42e73449a0bd0fe885;hpb=2e99cd30c3108fd8da6a9f9fadfa89852c8d8826;p=youtube-dl diff --git a/youtube_dl/downloader/dash.py b/youtube_dl/downloader/dash.py index e087cf142..94a13a543 100644 --- a/youtube_dl/downloader/dash.py +++ b/youtube_dl/downloader/dash.py @@ -1,14 +1,7 @@ from __future__ import unicode_literals -import os -import re - from .fragment import FragmentFD from ..compat import compat_urllib_error -from ..utils import ( - sanitize_open, - encodeFilename, -) class DashSegmentsFD(FragmentFD): @@ -19,39 +12,34 @@ class DashSegmentsFD(FragmentFD): FD_NAME = 'dashsegments' 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') + segments = info_dict['fragments'][:1] if self.params.get( + 'test', False) else info_dict['fragments'] ctx = { 'filename': filename, - 'total_frags': len(segment_urls) + (1 if initialization_url else 0), + 'total_frags': len(segments), } 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) - - segments_filenames = [] - fragment_retries = self.params.get('fragment_retries', 0) skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True) - def append_url_to_file(target_url, tmp_filename, segment_name): - target_filename = '%s-%s' % (tmp_filename, segment_name) + frag_index = 0 + for i, segment in enumerate(segments): + frag_index += 1 + if frag_index <= ctx['frag_index']: + continue + # In DASH, the first segment contains necessary headers to + # generate a valid MP4 file, so always abort for the first segment + fatal = i == 0 or not skip_unavailable_fragments count = 0 while count <= fragment_retries: try: - success = ctx['dl'].download(target_filename, {'url': combine_url(base_url, target_url)}) + success, frag_content = self._download_fragment(ctx, segment['url'], info_dict) 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) + self._append_fragment(ctx, frag_content) break except compat_urllib_error.HTTPError as err: # YouTube may often return 404 HTTP error for a fragment causing the @@ -62,22 +50,14 @@ class DashSegmentsFD(FragmentFD): # HTTP error. count += 1 if count <= fragment_retries: - self.report_retry_fragment(err, segment_name, count, fragment_retries) + self.report_retry_fragment(err, frag_index, count, fragment_retries) if count > fragment_retries: - if skip_unavailable_fragments: - self.report_skip_fragment(segment_name) - return + if not fatal: + self.report_skip_fragment(frag_index) + continue self.report_error('giving up after %s fragment retries' % fragment_retries) return False - if initialization_url: - append_url_to_file(initialization_url, ctx['tmpfilename'], 'Init') - for i, segment_url in enumerate(segment_urls): - append_url_to_file(segment_url, ctx['tmpfilename'], 'Seg%d' % i) - self._finish_frag_download(ctx) - for segment_file in segments_filenames: - os.remove(encodeFilename(segment_file)) - return True