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authorRemita Amine <remitamine@gmail.com>2017-04-13 12:21:17 +0100
committerRemita Amine <remitamine@gmail.com>2017-04-13 12:28:22 +0100
commitf59746372a1aae3bc80462d34a7e96200be22ab5 (patch)
treeb6218776e77baaa7b7d3c136b49c9af021689930 /youtube_dl
parent34d98cc411d379cea02a67ba7fc9f52e74daff23 (diff)
[downloader/hls] add basic support for EXT-X-BYTERANGE tag(#10955)
Diffstat (limited to 'youtube_dl')
-rw-r--r--youtube_dl/downloader/hls.py19
1 files changed, 16 insertions, 3 deletions
diff --git a/youtube_dl/downloader/hls.py b/youtube_dl/downloader/hls.py
index 4989abce1..d0a5f7ba4 100644
--- a/youtube_dl/downloader/hls.py
+++ b/youtube_dl/downloader/hls.py
@@ -34,7 +34,7 @@ class HlsFD(FragmentFD):
def can_download(manifest, info_dict):
UNSUPPORTED_FEATURES = (
r'#EXT-X-KEY:METHOD=(?!NONE|AES-128)', # encrypted streams [1]
- r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [2]
+ # r'#EXT-X-BYTERANGE', # playlists composed of byte ranges of media files [2]
# Live streams heuristic does not always work (e.g. geo restricted to Germany
# http://hls-geo.daserste.de/i/videoportal/Film/c_620000/622873/format,716451,716457,716450,716458,716459,.mp4.csmil/index_4_av.m3u8?null=0)
@@ -52,7 +52,9 @@ class HlsFD(FragmentFD):
# 4. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.5
)
check_results = [not re.search(feature, manifest) for feature in UNSUPPORTED_FEATURES]
- check_results.append(can_decrypt_frag or '#EXT-X-KEY:METHOD=AES-128' not in manifest)
+ is_aes128_enc = '#EXT-X-KEY:METHOD=AES-128' in manifest
+ check_results.append(can_decrypt_frag or not is_aes128_enc)
+ check_results.append(not (is_aes128_enc and r'#EXT-X-BYTERANGE' in manifest))
check_results.append(not info_dict.get('is_live'))
return all(check_results)
@@ -100,6 +102,7 @@ class HlsFD(FragmentFD):
i = 0
media_sequence = 0
decrypt_info = {'METHOD': 'NONE'}
+ byte_range = {}
frags_filenames = []
for line in s.splitlines():
line = line.strip()
@@ -114,11 +117,14 @@ class HlsFD(FragmentFD):
if extra_query:
frag_url = update_url_query(frag_url, extra_query)
count = 0
+ headers = info_dict.get('http_headers', {})
+ if byte_range:
+ headers['Range'] = 'bytes=%d-%d' % (byte_range['start'], byte_range['end'])
while count <= fragment_retries:
try:
success = ctx['dl'].download(frag_filename, {
'url': frag_url,
- 'http_headers': info_dict.get('http_headers'),
+ 'http_headers': headers,
})
if not success:
return False
@@ -167,6 +173,13 @@ class HlsFD(FragmentFD):
decrypt_info['KEY'] = self.ydl.urlopen(decrypt_info['URI']).read()
elif line.startswith('#EXT-X-MEDIA-SEQUENCE'):
media_sequence = int(line[22:])
+ elif line.startswith('#EXT-X-BYTERANGE'):
+ splitted_byte_range = line[17:].split('@')
+ sub_range_start = int(splitted_byte_range[1]) if len(splitted_byte_range) == 2 else byte_range['end']
+ byte_range = {
+ 'start': sub_range_start,
+ 'end': sub_range_start + int(splitted_byte_range[0]),
+ }
self._finish_frag_download(ctx)