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Use relative paths for DASH fragments (closes #12990)
10x reduced JSON size refs #13810
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@ -2,6 +2,7 @@
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from .fragment import FragmentFD
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from ..compat import compat_urllib_error
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from ..utils import urljoin
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class DashSegmentsFD(FragmentFD):
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@ -12,12 +13,13 @@ class DashSegmentsFD(FragmentFD):
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FD_NAME = 'dashsegments'
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def real_download(self, filename, info_dict):
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segments = info_dict['fragments'][:1] if self.params.get(
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fragment_base_url = info_dict.get('fragment_base_url')
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fragments = info_dict['fragments'][:1] if self.params.get(
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'test', False) else info_dict['fragments']
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ctx = {
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'filename': filename,
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'total_frags': len(segments),
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'total_frags': len(fragments),
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}
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self._prepare_and_start_frag_download(ctx)
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@ -26,7 +28,7 @@ def real_download(self, filename, info_dict):
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skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
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frag_index = 0
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for i, segment in enumerate(segments):
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for i, fragment in enumerate(fragments):
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frag_index += 1
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if frag_index <= ctx['fragment_index']:
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continue
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@ -36,7 +38,11 @@ def real_download(self, filename, info_dict):
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count = 0
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while count <= fragment_retries:
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try:
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success, frag_content = self._download_fragment(ctx, segment['url'], info_dict)
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fragment_url = fragment.get('url')
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if not fragment_url:
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assert fragment_base_url
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fragment_url = urljoin(fragment_base_url, fragment['path'])
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success, frag_content = self._download_fragment(ctx, fragment_url, info_dict)
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if not success:
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return False
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self._append_fragment(ctx, frag_content)
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@ -1892,9 +1892,13 @@ def prepare_template(template_name, identifiers):
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'Bandwidth': bandwidth,
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}
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def location_key(location):
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return 'url' if re.match(r'^https?://', location) else 'path'
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if 'segment_urls' not in representation_ms_info and 'media' in representation_ms_info:
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media_template = prepare_template('media', ('Number', 'Bandwidth', 'Time'))
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media_location_key = location_key(media_template)
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# As per [1, 5.3.9.4.4, Table 16, page 55] $Number$ and $Time$
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# can't be used at the same time
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@ -1904,7 +1908,7 @@ def prepare_template(template_name, identifiers):
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segment_duration = float_or_none(representation_ms_info['segment_duration'], representation_ms_info['timescale'])
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representation_ms_info['total_number'] = int(math.ceil(float(period_duration) / segment_duration))
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representation_ms_info['fragments'] = [{
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'url': media_template % {
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media_location_key: media_template % {
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'Number': segment_number,
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'Bandwidth': bandwidth,
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},
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@ -1928,7 +1932,7 @@ def add_segment_url():
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'Number': segment_number,
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}
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representation_ms_info['fragments'].append({
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'url': segment_url,
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media_location_key: segment_url,
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'duration': float_or_none(segment_d, representation_ms_info['timescale']),
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})
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@ -1952,8 +1956,9 @@ def add_segment_url():
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for s in representation_ms_info['s']:
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duration = float_or_none(s['d'], timescale)
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for r in range(s.get('r', 0) + 1):
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segment_uri = representation_ms_info['segment_urls'][segment_index]
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fragments.append({
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'url': representation_ms_info['segment_urls'][segment_index],
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location_key(segment_uri): segment_uri,
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'duration': duration,
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})
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segment_index += 1
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@ -1962,6 +1967,7 @@ def add_segment_url():
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# No fragments key is present in this case.
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if 'fragments' in representation_ms_info:
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f.update({
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'fragment_base_url': base_url,
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'fragments': [],
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'protocol': 'http_dash_segments',
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})
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@ -1969,10 +1975,8 @@ def add_segment_url():
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initialization_url = representation_ms_info['initialization_url']
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if not f.get('url'):
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f['url'] = initialization_url
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f['fragments'].append({'url': initialization_url})
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f['fragments'].append({location_key(initialization_url): initialization_url})
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f['fragments'].extend(representation_ms_info['fragments'])
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for fragment in f['fragments']:
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fragment['url'] = urljoin(base_url, fragment['url'])
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try:
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existing_format = next(
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fo for fo in formats
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