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Code Issues Projects Releases Wiki Activity

Subtitle extraction from streaming media manifests #247

Browse Source 
Authored by fstirlitz
Modified from: https://github.com/ytdl-org/youtube-dl/pull/6144

Closes: #73
Fixes:
https://github.com/ytdl-org/youtube-dl/issues/6106
https://github.com/ytdl-org/youtube-dl/issues/14977
https://github.com/ytdl-org/youtube-dl/issues/21438
https://github.com/ytdl-org/youtube-dl/issues/23609
https://github.com/ytdl-org/youtube-dl/issues/28132

Might also fix (untested):
https://github.com/ytdl-org/youtube-dl/issues/15424
https://github.com/ytdl-org/youtube-dl/issues/18267
https://github.com/ytdl-org/youtube-dl/issues/23899
https://github.com/ytdl-org/youtube-dl/issues/24375
https://github.com/ytdl-org/youtube-dl/issues/24595
https://github.com/ytdl-org/youtube-dl/issues/27899

Related:
https://github.com/ytdl-org/youtube-dl/issues/22379
https://github.com/ytdl-org/youtube-dl/pull/24517
https://github.com/ytdl-org/youtube-dl/pull/24886
https://github.com/ytdl-org/youtube-dl/pull/27215

Notes:
* The functions `extractor.common._extract_..._formats` are still kept for compatibility
* Only some extractors have currently been moved to using `_extract_..._formats_and_subtitles`
* Direct subtitle manifests (without a master) are not supported and are wrongly identified as containing video formats
* AES support is untested
* The fragmented TTML subtitles extracted from DASH/ISM are valid, but are unsupported by `ffmpeg` and most video players
    * Their XML fragments can be dumped using `ffmpeg -i in.mp4 -f data -map 0 -c copy out.ttml`.
        Once the unnecessary headers are stripped out of this, it becomes a valid self-contained ttml file
    * The ttml subs downloaded from DASH manifests can also be directly opened with <https://github.com/SubtitleEdit>
* Fragmented WebVTT files extracted from DASH/ISM are also unsupported by most tools
    * Unlike the ttml files, the XML fragments of these cannot be dumped using `ffmpeg`
    * The webtt subs extracted from DASH can be parsed by <https://github.com/gpac/gpac>
    * But validity of the those extracted from ISM are untested
pull/289/head
pukkandan 4 years ago committed by GitHub
parent db9a564b6a e8f834cd8d
commit be6202f12b
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25 changed files with 2731 additions and 268 deletions
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test/test_InfoExtractor.py
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@ -684,17 +684,186 @@ jwplayer("mediaplayer").setup({"abouttext":"Visit Indie DB","aboutlink":"http:\/
'width': 1920, 'width': 1920,
'height': 1080, 'height': 1080,
'vcodec': 'avc1.64002a', 'vcodec': 'avc1.64002a',
}] }],
{}
),
(
'bipbop_16x9',
'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8',
[{
"format_id": "bipbop_audio-BipBop Audio 2",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/alternate_audio_aac/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"language": "eng",
"ext": "mp4",
"protocol": "m3u8",
"preference": None,
"quality": None,
"vcodec": "none",
"audio_ext": "mp4",
"video_ext": "none",
}, {
"format_id": "41",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/gear0/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"tbr": 41.457,
"ext": "mp4",
"fps": None,
"protocol": "m3u8",
"preference": None,
"quality": None,
"vcodec": "none",
"acodec": "mp4a.40.2",
"audio_ext": "mp4",
"video_ext": "none",
"abr": 41.457,
}, {
"format_id": "263",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/gear1/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"tbr": 263.851,
"ext": "mp4",
"fps": None,
"protocol": "m3u8",
"preference": None,
"quality": None,
"width": 416,
"height": 234,
"vcodec": "avc1.4d400d",
"acodec": "mp4a.40.2",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 263.851,
"abr": 0,
}, {
"format_id": "577",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/gear2/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"tbr": 577.61,
"ext": "mp4",
"fps": None,
"protocol": "m3u8",
"preference": None,
"quality": None,
"width": 640,
"height": 360,
"vcodec": "avc1.4d401e",
"acodec": "mp4a.40.2",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 577.61,
"abr": 0,
}, {
"format_id": "915",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/gear3/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"tbr": 915.905,
"ext": "mp4",
"fps": None,
"protocol": "m3u8",
"preference": None,
"quality": None,
"width": 960,
"height": 540,
"vcodec": "avc1.4d401f",
"acodec": "mp4a.40.2",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 915.905,
"abr": 0,
}, {
"format_id": "1030",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/gear4/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"tbr": 1030.138,
"ext": "mp4",
"fps": None,
"protocol": "m3u8",
"preference": None,
"quality": None,
"width": 1280,
"height": 720,
"vcodec": "avc1.4d401f",
"acodec": "mp4a.40.2",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 1030.138,
"abr": 0,
}, {
"format_id": "1924",
"format_index": None,
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/gear5/prog_index.m3u8",
"manifest_url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8",
"tbr": 1924.009,
"ext": "mp4",
"fps": None,
"protocol": "m3u8",
"preference": None,
"quality": None,
"width": 1920,
"height": 1080,
"vcodec": "avc1.4d401f",
"acodec": "mp4a.40.2",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 1924.009,
"abr": 0,
}],
{
"en": [{
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/eng/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}, {
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/eng_forced/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}],
"fr": [{
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/fra/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}, {
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/fra_forced/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}],
"es": [{
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/spa/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}, {
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/spa_forced/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}],
"ja": [{
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/jpn/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}, {
"url": "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/subtitles/jpn_forced/prog_index.m3u8",
"ext": "vtt",
"protocol": "m3u8_native"
}],
}
), ),
] ]
for m3u8_file, m3u8_url, expected_formats in _TEST_CASES: for m3u8_file, m3u8_url, expected_formats, expected_subs in _TEST_CASES:
with io.open('./test/testdata/m3u8/%s.m3u8' % m3u8_file, with io.open('./test/testdata/m3u8/%s.m3u8' % m3u8_file,
mode='r', encoding='utf-8') as f: mode='r', encoding='utf-8') as f:
formats = self.ie._parse_m3u8_formats( formats, subs = self.ie._parse_m3u8_formats_and_subtitles(
f.read(), m3u8_url, ext='mp4') f.read(), m3u8_url, ext='mp4')
self.ie._sort_formats(formats) self.ie._sort_formats(formats)
expect_value(self, formats, expected_formats, None) expect_value(self, formats, expected_formats, None)
expect_value(self, subs, expected_subs, None)
def test_parse_mpd_formats(self): def test_parse_mpd_formats(self):
_TEST_CASES = [ _TEST_CASES = [
@ -780,7 +949,8 @@ jwplayer("mediaplayer").setup({"abouttext":"Visit Indie DB","aboutlink":"http:\/
'tbr': 5997.485, 'tbr': 5997.485,
'width': 1920, 'width': 1920,
'height': 1080, 'height': 1080,
}] }],
{},
), ( ), (
# https://github.com/ytdl-org/youtube-dl/pull/14844 # https://github.com/ytdl-org/youtube-dl/pull/14844
'urls_only', 'urls_only',
@ -863,7 +1033,8 @@ jwplayer("mediaplayer").setup({"abouttext":"Visit Indie DB","aboutlink":"http:\/
'tbr': 4400, 'tbr': 4400,
'width': 1920, 'width': 1920,
'height': 1080, 'height': 1080,
}] }],
{},
), ( ), (
# https://github.com/ytdl-org/youtube-dl/issues/20346 # https://github.com/ytdl-org/youtube-dl/issues/20346
# Media considered unfragmented even though it contains # Media considered unfragmented even though it contains
@ -909,18 +1080,328 @@ jwplayer("mediaplayer").setup({"abouttext":"Visit Indie DB","aboutlink":"http:\/
'width': 360, 'width': 360,
'height': 360, 'height': 360,
'fps': 30, 'fps': 30,
}] }],
{},
), (
'subtitles',
'https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd',
'https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/',
[{
"format_id": "audio=128001",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"ext": "m4a",
"tbr": 128.001,
"asr": 48000,
"format_note": "DASH audio",
"container": "m4a_dash",
"vcodec": "none",
"acodec": "mp4a.40.2",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
"audio_ext": "m4a",
"video_ext": "none",
"abr": 128.001,
}, {
"format_id": "video=100000",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"ext": "mp4",
"width": 336,
"height": 144,
"tbr": 100,
"format_note": "DASH video",
"container": "mp4_dash",
"vcodec": "avc1.4D401F",
"acodec": "none",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 100,
}, {
"format_id": "video=326000",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"ext": "mp4",
"width": 562,
"height": 240,
"tbr": 326,
"format_note": "DASH video",
"container": "mp4_dash",
"vcodec": "avc1.4D401F",
"acodec": "none",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 326,
}, {
"format_id": "video=698000",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"ext": "mp4",
"width": 844,
"height": 360,
"tbr": 698,
"format_note": "DASH video",
"container": "mp4_dash",
"vcodec": "avc1.4D401F",
"acodec": "none",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 698,
}, {
"format_id": "video=1493000",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"ext": "mp4",
"width": 1126,
"height": 480,
"tbr": 1493,
"format_note": "DASH video",
"container": "mp4_dash",
"vcodec": "avc1.4D401F",
"acodec": "none",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 1493,
}, {
"format_id": "video=4482000",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"ext": "mp4",
"width": 1688,
"height": 720,
"tbr": 4482,
"format_note": "DASH video",
"container": "mp4_dash",
"vcodec": "avc1.4D401F",
"acodec": "none",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
"video_ext": "mp4",
"audio_ext": "none",
"vbr": 4482,
}],
{
"en": [
{
"ext": "mp4",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/manifest.mpd",
"fragment_base_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/dash/",
"protocol": "http_dash_segments",
}
]
},
) )
] ]
for mpd_file, mpd_url, mpd_base_url, expected_formats in _TEST_CASES: for mpd_file, mpd_url, mpd_base_url, expected_formats, expected_subtitles in _TEST_CASES:
with io.open('./test/testdata/mpd/%s.mpd' % mpd_file, with io.open('./test/testdata/mpd/%s.mpd' % mpd_file,
mode='r', encoding='utf-8') as f: mode='r', encoding='utf-8') as f:
formats = self.ie._parse_mpd_formats( formats, subtitles = self.ie._parse_mpd_formats_and_subtitles(
compat_etree_fromstring(f.read().encode('utf-8')), compat_etree_fromstring(f.read().encode('utf-8')),
mpd_base_url=mpd_base_url, mpd_url=mpd_url) mpd_base_url=mpd_base_url, mpd_url=mpd_url)
self.ie._sort_formats(formats) self.ie._sort_formats(formats)
expect_value(self, formats, expected_formats, None) expect_value(self, formats, expected_formats, None)
expect_value(self, subtitles, expected_subtitles, None)
def test_parse_ism_formats(self):
_TEST_CASES = [
(
'sintel',
'https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest',
[{
"format_id": "audio-128",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"ext": "isma",
"tbr": 128,
"asr": 48000,
"vcodec": "none",
"acodec": "AACL",
"protocol": "ism",
"_download_params": {
"stream_type": "audio",
"duration": 8880746666,
"timescale": 10000000,
"width": 0,
"height": 0,
"fourcc": "AACL",
"codec_private_data": "1190",
"sampling_rate": 48000,
"channels": 2,
"bits_per_sample": 16,
"nal_unit_length_field": 4
},
"audio_ext": "isma",
"video_ext": "none",
"abr": 128,
}, {
"format_id": "video-100",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"ext": "ismv",
"width": 336,
"height": 144,
"tbr": 100,
"vcodec": "AVC1",
"acodec": "none",
"protocol": "ism",
"_download_params": {
"stream_type": "video",
"duration": 8880746666,
"timescale": 10000000,
"width": 336,
"height": 144,
"fourcc": "AVC1",
"codec_private_data": "00000001674D401FDA0544EFFC2D002CBC40000003004000000C03C60CA80000000168EF32C8",
"channels": 2,
"bits_per_sample": 16,
"nal_unit_length_field": 4
},
"video_ext": "ismv",
"audio_ext": "none",
"vbr": 100,
}, {
"format_id": "video-326",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"ext": "ismv",
"width": 562,
"height": 240,
"tbr": 326,
"vcodec": "AVC1",
"acodec": "none",
"protocol": "ism",
"_download_params": {
"stream_type": "video",
"duration": 8880746666,
"timescale": 10000000,
"width": 562,
"height": 240,
"fourcc": "AVC1",
"codec_private_data": "00000001674D401FDA0241FE23FFC3BC83BA44000003000400000300C03C60CA800000000168EF32C8",
"channels": 2,
"bits_per_sample": 16,
"nal_unit_length_field": 4
},
"video_ext": "ismv",
"audio_ext": "none",
"vbr": 326,
}, {
"format_id": "video-698",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"ext": "ismv",
"width": 844,
"height": 360,
"tbr": 698,
"vcodec": "AVC1",
"acodec": "none",
"protocol": "ism",
"_download_params": {
"stream_type": "video",
"duration": 8880746666,
"timescale": 10000000,
"width": 844,
"height": 360,
"fourcc": "AVC1",
"codec_private_data": "00000001674D401FDA0350BFB97FF06AF06AD1000003000100000300300F1832A00000000168EF32C8",
"channels": 2,
"bits_per_sample": 16,
"nal_unit_length_field": 4
},
"video_ext": "ismv",
"audio_ext": "none",
"vbr": 698,
}, {
"format_id": "video-1493",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"ext": "ismv",
"width": 1126,
"height": 480,
"tbr": 1493,
"vcodec": "AVC1",
"acodec": "none",
"protocol": "ism",
"_download_params": {
"stream_type": "video",
"duration": 8880746666,
"timescale": 10000000,
"width": 1126,
"height": 480,
"fourcc": "AVC1",
"codec_private_data": "00000001674D401FDA011C3DE6FFF0D890D871000003000100000300300F1832A00000000168EF32C8",
"channels": 2,
"bits_per_sample": 16,
"nal_unit_length_field": 4
},
"video_ext": "ismv",
"audio_ext": "none",
"vbr": 1493,
}, {
"format_id": "video-4482",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"ext": "ismv",
"width": 1688,
"height": 720,
"tbr": 4482,
"vcodec": "AVC1",
"acodec": "none",
"protocol": "ism",
"_download_params": {
"stream_type": "video",
"duration": 8880746666,
"timescale": 10000000,
"width": 1688,
"height": 720,
"fourcc": "AVC1",
"codec_private_data": "00000001674D401FDA01A816F97FFC1ABC1AB440000003004000000C03C60CA80000000168EF32C8",
"channels": 2,
"bits_per_sample": 16,
"nal_unit_length_field": 4
},
"video_ext": "ismv",
"audio_ext": "none",
"vbr": 4482,
}],
{
"eng": [
{
"ext": "ismt",
"protocol": "ism",
"url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"manifest_url": "https://sdn-global-streaming-cache-3qsdn.akamaized.net/stream/3144/files/17/07/672975/3144-kZT4LWMQw6Rh7Kpd.ism/Manifest",
"_download_params": {
"stream_type": "text",
"duration": 8880746666,
"timescale": 10000000,
"fourcc": "TTML",
"codec_private_data": ""
}
}
]
},
),
]
for ism_file, ism_url, expected_formats, expected_subtitles in _TEST_CASES:
with io.open('./test/testdata/ism/%s.Manifest' % ism_file,
mode='r', encoding='utf-8') as f:
formats, subtitles = self.ie._parse_ism_formats_and_subtitles(
compat_etree_fromstring(f.read().encode('utf-8')), ism_url=ism_url)
self.ie._sort_formats(formats)
expect_value(self, formats, expected_formats, None)
expect_value(self, subtitles, expected_subtitles, None)
def test_parse_f4m_formats(self): def test_parse_f4m_formats(self):
_TEST_CASES = [ _TEST_CASES = [

988
test/testdata/ism/sintel.Manifest vendored
Unescape Escape View File

@ -0,0 +1,988 @@
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<StreamIndex
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Name="textstream_eng"
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</SmoothStreamingMedia>

38
test/testdata/m3u8/bipbop_16x9.m3u8 vendored
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#EXTM3U
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="bipbop_audio",LANGUAGE="eng",NAME="BipBop Audio 1",AUTOSELECT=YES,DEFAULT=YES
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="bipbop_audio",LANGUAGE="eng",NAME="BipBop Audio 2",AUTOSELECT=NO,DEFAULT=NO,URI="alternate_audio_aac/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="English",DEFAULT=YES,AUTOSELECT=YES,FORCED=NO,LANGUAGE="en",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/eng/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="English (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="en",URI="subtitles/eng_forced/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Français",DEFAULT=NO,AUTOSELECT=YES,FORCED=NO,LANGUAGE="fr",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/fra/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Français (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="fr",URI="subtitles/fra_forced/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Español",DEFAULT=NO,AUTOSELECT=YES,FORCED=NO,LANGUAGE="es",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/spa/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Español (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="es",URI="subtitles/spa_forced/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="日本語",DEFAULT=NO,AUTOSELECT=YES,FORCED=NO,LANGUAGE="ja",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/jpn/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="日本語 (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="ja",URI="subtitles/jpn_forced/prog_index.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=263851,CODECS="mp4a.40.2, avc1.4d400d",RESOLUTION=416x234,AUDIO="bipbop_audio",SUBTITLES="subs"
gear1/prog_index.m3u8
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=28451,CODECS="avc1.4d400d",URI="gear1/iframe_index.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=577610,CODECS="mp4a.40.2, avc1.4d401e",RESOLUTION=640x360,AUDIO="bipbop_audio",SUBTITLES="subs"
gear2/prog_index.m3u8
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=181534,CODECS="avc1.4d401e",URI="gear2/iframe_index.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=915905,CODECS="mp4a.40.2, avc1.4d401f",RESOLUTION=960x540,AUDIO="bipbop_audio",SUBTITLES="subs"
gear3/prog_index.m3u8
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=297056,CODECS="avc1.4d401f",URI="gear3/iframe_index.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=1030138,CODECS="mp4a.40.2, avc1.4d401f",RESOLUTION=1280x720,AUDIO="bipbop_audio",SUBTITLES="subs"
gear4/prog_index.m3u8
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=339492,CODECS="avc1.4d401f",URI="gear4/iframe_index.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=1924009,CODECS="mp4a.40.2, avc1.4d401f",RESOLUTION=1920x1080,AUDIO="bipbop_audio",SUBTITLES="subs"
gear5/prog_index.m3u8
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=669554,CODECS="avc1.4d401f",URI="gear5/iframe_index.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=41457,CODECS="mp4a.40.2",AUDIO="bipbop_audio",SUBTITLES="subs"
gear0/prog_index.m3u8

351
test/testdata/mpd/subtitles.mpd vendored
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<?xml version="1.0" encoding="utf-8"?>
<!-- Created with Unified Streaming Platform (version=1.10.18-20255) -->
<MPD
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn:mpeg:dash:schema:mpd:2011"
xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd"
type="static"
mediaPresentationDuration="PT14M48S"
maxSegmentDuration="PT1M"
minBufferTime="PT10S"
profiles="urn:mpeg:dash:profile:isoff-live:2011">
<Period
id="1"
duration="PT14M48S">
<BaseURL>dash/</BaseURL>
<AdaptationSet
id="1"
group="1"
contentType="audio"
segmentAlignment="true"
audioSamplingRate="48000"
mimeType="audio/mp4"
codecs="mp4a.40.2"
startWithSAP="1">
<AudioChannelConfiguration
schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011"
value="2" />
<Role schemeIdUri="urn:mpeg:dash:role:2011" value="main" />
<SegmentTemplate
timescale="48000"
initialization="3144-kZT4LWMQw6Rh7Kpd-$RepresentationID$.dash"
media="3144-kZT4LWMQw6Rh7Kpd-$RepresentationID$-$Time$.dash">
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<S d="95232" />
<S d="96256" r="2" />
<S d="95232" />
<S d="96256" r="2" />
<S d="95232" />
<S d="96256" r="2" />
<S d="95232" />
<S d="96256" r="2" />
<S d="95232" />
<S d="96256" r="2" />
<S d="95232" />
<S d="3584" />
</SegmentTimeline>
</SegmentTemplate>
<Representation
id="audio=128001"
bandwidth="128001">
</Representation>
</AdaptationSet>
<AdaptationSet
id="2"
group="3"
contentType="text"
lang="en"
mimeType="application/mp4"
codecs="stpp"
startWithSAP="1">
<Role schemeIdUri="urn:mpeg:dash:role:2011" value="subtitle" />
<SegmentTemplate
timescale="1000"
initialization="3144-kZT4LWMQw6Rh7Kpd-$RepresentationID$.dash"
media="3144-kZT4LWMQw6Rh7Kpd-$RepresentationID$-$Time$.dash">
<SegmentTimeline>
<S t="0" d="60000" r="9" />
<S d="24000" />
</SegmentTimeline>
</SegmentTemplate>
<Representation
id="textstream_eng=1000"
bandwidth="1000">
</Representation>
</AdaptationSet>
<AdaptationSet
id="3"
group="2"
contentType="video"
par="960:409"
minBandwidth="100000"
maxBandwidth="4482000"
maxWidth="1689"
maxHeight="720"
segmentAlignment="true"
mimeType="video/mp4"
codecs="avc1.4D401F"
startWithSAP="1">
<Role schemeIdUri="urn:mpeg:dash:role:2011" value="main" />
<SegmentTemplate
timescale="12288"
initialization="3144-kZT4LWMQw6Rh7Kpd-$RepresentationID$.dash"
media="3144-kZT4LWMQw6Rh7Kpd-$RepresentationID$-$Time$.dash">
<SegmentTimeline>
<S t="0" d="24576" r="443" />
</SegmentTimeline>
</SegmentTemplate>
<Representation
id="video=100000"
bandwidth="100000"
width="336"
height="144"
sar="2880:2863"
scanType="progressive">
</Representation>
<Representation
id="video=326000"
bandwidth="326000"
width="562"
height="240"
sar="115200:114929"
scanType="progressive">
</Representation>
<Representation
id="video=698000"
bandwidth="698000"
width="844"
height="360"
sar="86400:86299"
scanType="progressive">
</Representation>
<Representation
id="video=1493000"
bandwidth="1493000"
width="1126"
height="480"
sar="230400:230267"
scanType="progressive">
</Representation>
<Representation
id="video=4482000"
bandwidth="4482000"
width="1688"
height="720"
sar="86400:86299"
scanType="progressive">
</Representation>
</AdaptationSet>
</Period>
</MPD>

14
yt_dlp/compat.py
Unescape Escape View File

@ -3018,10 +3018,24 @@ else:
return ctypes.WINFUNCTYPE(*args, **kwargs) return ctypes.WINFUNCTYPE(*args, **kwargs)
try:
compat_Pattern = re.Pattern
except AttributeError:
compat_Pattern = type(re.compile(''))
try:
compat_Match = re.Match
except AttributeError:
compat_Match = type(re.compile('').match(''))
__all__ = [ __all__ = [
'compat_HTMLParseError', 'compat_HTMLParseError',
'compat_HTMLParser', 'compat_HTMLParser',
'compat_HTTPError', 'compat_HTTPError',
'compat_Match',
'compat_Pattern',
'compat_Struct', 'compat_Struct',
'compat_b64decode', 'compat_b64decode',
'compat_basestring', 'compat_basestring',

7
yt_dlp/downloader/fragment.py
Unescape Escape View File

@ -77,7 +77,10 @@ class FragmentFD(FileDownloader):
assert 'ytdl_corrupt' not in ctx assert 'ytdl_corrupt' not in ctx
stream, _ = sanitize_open(self.ytdl_filename(ctx['filename']), 'r') stream, _ = sanitize_open(self.ytdl_filename(ctx['filename']), 'r')
try: try:
ctx['fragment_index'] = json.loads(stream.read())['downloader']['current_fragment']['index'] ytdl_data = json.loads(stream.read())
ctx['fragment_index'] = ytdl_data['downloader']['current_fragment']['index']
if 'extra_state' in ytdl_data['downloader']:
ctx['extra_state'] = ytdl_data['downloader']['extra_state']
except Exception: except Exception:
ctx['ytdl_corrupt'] = True ctx['ytdl_corrupt'] = True
finally: finally:
@ -90,6 +93,8 @@ class FragmentFD(FileDownloader):
'index': ctx['fragment_index'], 'index': ctx['fragment_index'],
}, },
} }
if 'extra_state' in ctx:
downloader['extra_state'] = ctx['extra_state']
if ctx.get('fragment_count') is not None: if ctx.get('fragment_count') is not None:
downloader['fragment_count'] = ctx['fragment_count'] downloader['fragment_count'] = ctx['fragment_count']
frag_index_stream.write(json.dumps({'downloader': downloader})) frag_index_stream.write(json.dumps({'downloader': downloader}))

78
yt_dlp/downloader/hls.py
Unescape Escape View File

@ -2,6 +2,7 @@ from __future__ import unicode_literals
import errno import errno
import re import re
import io
import binascii import binascii
try: try:
from Crypto.Cipher import AES from Crypto.Cipher import AES
@ -27,7 +28,9 @@ from ..utils import (
parse_m3u8_attributes, parse_m3u8_attributes,
sanitize_open, sanitize_open,
update_url_query, update_url_query,
bug_reports_message,
) )
from .. import webvtt
class HlsFD(FragmentFD): class HlsFD(FragmentFD):
@ -78,6 +81,8 @@ class HlsFD(FragmentFD):
man_url = info_dict['url'] man_url = info_dict['url']
self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME) self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME)
is_webvtt = info_dict['ext'] == 'vtt'
urlh = self.ydl.urlopen(self._prepare_url(info_dict, man_url)) urlh = self.ydl.urlopen(self._prepare_url(info_dict, man_url))
man_url = urlh.geturl() man_url = urlh.geturl()
s = urlh.read().decode('utf-8', 'ignore') s = urlh.read().decode('utf-8', 'ignore')
@ -142,6 +147,8 @@ class HlsFD(FragmentFD):
else: else:
self._prepare_and_start_frag_download(ctx) self._prepare_and_start_frag_download(ctx)
extra_state = ctx.setdefault('extra_state', {})
fragment_retries = self.params.get('fragment_retries', 0) fragment_retries = self.params.get('fragment_retries', 0)
skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True) skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
test = self.params.get('test', False) test = self.params.get('test', False)
@ -308,6 +315,76 @@ class HlsFD(FragmentFD):
return frag_content, frag_index return frag_content, frag_index
pack_fragment = lambda frag_content, _: frag_content
if is_webvtt:
def pack_fragment(frag_content, frag_index):
output = io.StringIO()
adjust = 0
for block in webvtt.parse_fragment(frag_content):
if isinstance(block, webvtt.CueBlock):
block.start += adjust
block.end += adjust
dedup_window = extra_state.setdefault('webvtt_dedup_window', [])
cue = block.as_json
# skip the cue if an identical one appears
# in the window of potential duplicates
# and prune the window of unviable candidates
i = 0
skip = True
while i < len(dedup_window):
window_cue = dedup_window[i]
if window_cue == cue:
break
if window_cue['end'] >= cue['start']:
i += 1
continue
del dedup_window[i]
else:
skip = False
if skip:
continue
# add the cue to the window
dedup_window.append(cue)
elif isinstance(block, webvtt.Magic):
# take care of MPEG PES timestamp overflow
if block.mpegts is None:
block.mpegts = 0
extra_state.setdefault('webvtt_mpegts_adjust', 0)
block.mpegts += extra_state['webvtt_mpegts_adjust'] << 33
if block.mpegts < extra_state.get('webvtt_mpegts_last', 0):
extra_state['webvtt_mpegts_adjust'] += 1
block.mpegts += 1 << 33
extra_state['webvtt_mpegts_last'] = block.mpegts
if frag_index == 1:
extra_state['webvtt_mpegts'] = block.mpegts or 0
extra_state['webvtt_local'] = block.local or 0
# XXX: block.local = block.mpegts = None ?
else:
if block.mpegts is not None and block.local is not None:
adjust = (
(block.mpegts - extra_state.get('webvtt_mpegts', 0))
- (block.local - extra_state.get('webvtt_local', 0))
)
continue
elif isinstance(block, webvtt.HeaderBlock):
if frag_index != 1:
# XXX: this should probably be silent as well
# or verify that all segments contain the same data
self.report_warning(bug_reports_message(
'Discarding a %s block found in the middle of the stream; '
'if the subtitles display incorrectly,'
% (type(block).__name__)))
continue
block.write_into(output)
return output.getvalue().encode('utf-8')
def append_fragment(frag_content, frag_index): def append_fragment(frag_content, frag_index):
if frag_content: if frag_content:
fragment_filename = '%s-Frag%d' % (ctx['tmpfilename'], frag_index) fragment_filename = '%s-Frag%d' % (ctx['tmpfilename'], frag_index)
@ -315,6 +392,7 @@ class HlsFD(FragmentFD):
file, frag_sanitized = sanitize_open(fragment_filename, 'rb') file, frag_sanitized = sanitize_open(fragment_filename, 'rb')
ctx['fragment_filename_sanitized'] = frag_sanitized ctx['fragment_filename_sanitized'] = frag_sanitized
file.close() file.close()
frag_content = pack_fragment(frag_content, frag_index)
self._append_fragment(ctx, frag_content) self._append_fragment(ctx, frag_content)
return True return True
except EnvironmentError as ose: except EnvironmentError as ose:

54
yt_dlp/downloader/ism.py
Unescape Escape View File

@ -48,7 +48,7 @@ def write_piff_header(stream, params):
language = params.get('language', 'und') language = params.get('language', 'und')
height = params.get('height', 0) height = params.get('height', 0)
width = params.get('width', 0) width = params.get('width', 0)
is_audio = width == 0 and height == 0 stream_type = params['stream_type']
creation_time = modification_time = int(time.time()) creation_time = modification_time = int(time.time())
ftyp_payload = b'isml' # major brand ftyp_payload = b'isml' # major brand
@ -77,7 +77,7 @@ def write_piff_header(stream, params):
tkhd_payload += u32.pack(0) * 2 # reserved tkhd_payload += u32.pack(0) * 2 # reserved
tkhd_payload += s16.pack(0) # layer tkhd_payload += s16.pack(0) # layer
tkhd_payload += s16.pack(0) # alternate group tkhd_payload += s16.pack(0) # alternate group
tkhd_payload += s88.pack(1 if is_audio else 0) # volume tkhd_payload += s88.pack(1 if stream_type == 'audio' else 0) # volume
tkhd_payload += u16.pack(0) # reserved tkhd_payload += u16.pack(0) # reserved
tkhd_payload += unity_matrix tkhd_payload += unity_matrix
tkhd_payload += u1616.pack(width) tkhd_payload += u1616.pack(width)
@ -93,19 +93,34 @@ def write_piff_header(stream, params):
mdia_payload = full_box(b'mdhd', 1, 0, mdhd_payload) # Media Header Box mdia_payload = full_box(b'mdhd', 1, 0, mdhd_payload) # Media Header Box
hdlr_payload = u32.pack(0) # pre defined hdlr_payload = u32.pack(0) # pre defined
hdlr_payload += b'soun' if is_audio else b'vide' # handler type if stream_type == 'audio': # handler type
hdlr_payload += u32.pack(0) * 3 # reserved hdlr_payload += b'soun'
hdlr_payload += (b'Sound' if is_audio else b'Video') + b'Handler\0' # name hdlr_payload += u32.pack(0) * 3 # reserved
hdlr_payload += b'SoundHandler\0' # name
elif stream_type == 'video':
hdlr_payload += b'vide'
hdlr_payload += u32.pack(0) * 3 # reserved
hdlr_payload += b'VideoHandler\0' # name
elif stream_type == 'text':
hdlr_payload += b'subt'
hdlr_payload += u32.pack(0) * 3 # reserved
hdlr_payload += b'SubtitleHandler\0' # name
else:
assert False
mdia_payload += full_box(b'hdlr', 0, 0, hdlr_payload) # Handler Reference Box mdia_payload += full_box(b'hdlr', 0, 0, hdlr_payload) # Handler Reference Box
if is_audio: if stream_type == 'audio':
smhd_payload = s88.pack(0) # balance smhd_payload = s88.pack(0) # balance
smhd_payload += u16.pack(0) # reserved smhd_payload += u16.pack(0) # reserved
media_header_box = full_box(b'smhd', 0, 0, smhd_payload) # Sound Media Header media_header_box = full_box(b'smhd', 0, 0, smhd_payload) # Sound Media Header
else: elif stream_type == 'video':
vmhd_payload = u16.pack(0) # graphics mode vmhd_payload = u16.pack(0) # graphics mode
vmhd_payload += u16.pack(0) * 3 # opcolor vmhd_payload += u16.pack(0) * 3 # opcolor
media_header_box = full_box(b'vmhd', 0, 1, vmhd_payload) # Video Media Header media_header_box = full_box(b'vmhd', 0, 1, vmhd_payload) # Video Media Header
elif stream_type == 'text':
media_header_box = full_box(b'sthd', 0, 0, b'') # Subtitle Media Header
else:
assert False
minf_payload = media_header_box minf_payload = media_header_box
dref_payload = u32.pack(1) # entry count dref_payload = u32.pack(1) # entry count
@ -117,7 +132,7 @@ def write_piff_header(stream, params):
sample_entry_payload = u8.pack(0) * 6 # reserved sample_entry_payload = u8.pack(0) * 6 # reserved
sample_entry_payload += u16.pack(1) # data reference index sample_entry_payload += u16.pack(1) # data reference index
if is_audio: if stream_type == 'audio':
sample_entry_payload += u32.pack(0) * 2 # reserved sample_entry_payload += u32.pack(0) * 2 # reserved
sample_entry_payload += u16.pack(params.get('channels', 2)) sample_entry_payload += u16.pack(params.get('channels', 2))
sample_entry_payload += u16.pack(params.get('bits_per_sample', 16)) sample_entry_payload += u16.pack(params.get('bits_per_sample', 16))
@ -127,7 +142,7 @@ def write_piff_header(stream, params):
if fourcc == 'AACL': if fourcc == 'AACL':
sample_entry_box = box(b'mp4a', sample_entry_payload) sample_entry_box = box(b'mp4a', sample_entry_payload)
else: elif stream_type == 'video':
sample_entry_payload += u16.pack(0) # pre defined sample_entry_payload += u16.pack(0) # pre defined
sample_entry_payload += u16.pack(0) # reserved sample_entry_payload += u16.pack(0) # reserved
sample_entry_payload += u32.pack(0) * 3 # pre defined sample_entry_payload += u32.pack(0) * 3 # pre defined
@ -155,6 +170,18 @@ def write_piff_header(stream, params):
avcc_payload += pps avcc_payload += pps
sample_entry_payload += box(b'avcC', avcc_payload) # AVC Decoder Configuration Record sample_entry_payload += box(b'avcC', avcc_payload) # AVC Decoder Configuration Record
sample_entry_box = box(b'avc1', sample_entry_payload) # AVC Simple Entry sample_entry_box = box(b'avc1', sample_entry_payload) # AVC Simple Entry
else:
assert False
elif stream_type == 'text':
if fourcc == 'TTML':
sample_entry_payload += b'http://www.w3.org/ns/ttml\0' # namespace
sample_entry_payload += b'\0' # schema location
sample_entry_payload += b'\0' # auxilary mime types(??)
sample_entry_box = box(b'stpp', sample_entry_payload)
else:
assert False
else:
assert False
stsd_payload += sample_entry_box stsd_payload += sample_entry_box
stbl_payload = full_box(b'stsd', 0, 0, stsd_payload) # Sample Description Box stbl_payload = full_box(b'stsd', 0, 0, stsd_payload) # Sample Description Box
@ -221,10 +248,13 @@ class IsmFD(FragmentFD):
self._prepare_and_start_frag_download(ctx) self._prepare_and_start_frag_download(ctx)
extra_state = ctx.setdefault('extra_state', {
'ism_track_written': False,
})
fragment_retries = self.params.get('fragment_retries', 0) fragment_retries = self.params.get('fragment_retries', 0)
skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True) skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
track_written = False
frag_index = 0 frag_index = 0
for i, segment in enumerate(segments): for i, segment in enumerate(segments):
frag_index += 1 frag_index += 1
@ -236,11 +266,11 @@ class IsmFD(FragmentFD):
success, frag_content = self._download_fragment(ctx, segment['url'], info_dict) success, frag_content = self._download_fragment(ctx, segment['url'], info_dict)
if not success: if not success:
return False return False
if not track_written: if not extra_state['ism_track_written']:
tfhd_data = extract_box_data(frag_content, [b'moof', b'traf', b'tfhd']) tfhd_data = extract_box_data(frag_content, [b'moof', b'traf', b'tfhd'])
info_dict['_download_params']['track_id'] = u32.unpack(tfhd_data[4:8])[0] info_dict['_download_params']['track_id'] = u32.unpack(tfhd_data[4:8])[0]
write_piff_header(ctx['dest_stream'], info_dict['_download_params']) write_piff_header(ctx['dest_stream'], info_dict['_download_params'])
track_written = True extra_state['ism_track_written'] = True
self._append_fragment(ctx, frag_content) self._append_fragment(ctx, frag_content)
break break
except compat_urllib_error.HTTPError as err: except compat_urllib_error.HTTPError as err:

10
yt_dlp/extractor/atresplayer.py
Unescape Escape View File

@ -86,18 +86,19 @@ class AtresPlayerIE(InfoExtractor):
title = episode['titulo'] title = episode['titulo']
formats = [] formats = []
subtitles = {}
for source in episode.get('sources', []): for source in episode.get('sources', []):
src = source.get('src') src = source.get('src')
if not src: if not src:
continue continue
src_type = source.get('type') src_type = source.get('type')
if src_type == 'application/vnd.apple.mpegurl': if src_type == 'application/vnd.apple.mpegurl':
formats.extend(self._extract_m3u8_formats( formats, subtitles = self._extract_m3u8_formats(
src, video_id, 'mp4', 'm3u8_native', src, video_id, 'mp4', 'm3u8_native',
m3u8_id='hls', fatal=False)) m3u8_id='hls', fatal=False)
elif src_type == 'application/dash+xml': elif src_type == 'application/dash+xml':
formats.extend(self._extract_mpd_formats( formats, subtitles = self._extract_mpd_formats(
src, video_id, mpd_id='dash', fatal=False)) src, video_id, mpd_id='dash', fatal=False)
self._sort_formats(formats) self._sort_formats(formats)
heartbeat = episode.get('heartbeat') or {} heartbeat = episode.get('heartbeat') or {}
@ -115,4 +116,5 @@ class AtresPlayerIE(InfoExtractor):
'channel': get_meta('channel'), 'channel': get_meta('channel'),
'season': get_meta('season'), 'season': get_meta('season'),
'episode_number': int_or_none(get_meta('episodeNumber')), 'episode_number': int_or_none(get_meta('episodeNumber')),
'subtitles': subtitles,
} }

14
yt_dlp/extractor/byutv.py
Unescape Escape View File

@ -82,6 +82,7 @@ class BYUtvIE(InfoExtractor):
info = {} info = {}
formats = [] formats = []
subtitles = {}
for format_id, ep in video.items(): for format_id, ep in video.items():
if not isinstance(ep, dict): if not isinstance(ep, dict):
continue continue
@ -90,12 +91,16 @@ class BYUtvIE(InfoExtractor):
continue continue
ext = determine_ext(video_url) ext = determine_ext(video_url)
if ext == 'm3u8': if ext == 'm3u8':
formats.extend(self._extract_m3u8_formats( m3u8_fmts, m3u8_subs = self._extract_m3u8_formats_and_subtitles(
video_url, video_id, 'mp4', entry_protocol='m3u8_native', video_url, video_id, 'mp4', entry_protocol='m3u8_native',
m3u8_id='hls', fatal=False)) m3u8_id='hls', fatal=False)
formats.extend(m3u8_fmts)
subtitles = self._merge_subtitles(subtitles, m3u8_subs)
elif ext == 'mpd': elif ext == 'mpd':
formats.extend(self._extract_mpd_formats( mpd_fmts, mpd_subs = self._extract_mpd_formats_and_subtitles(
video_url, video_id, mpd_id='dash', fatal=False)) video_url, video_id, mpd_id='dash', fatal=False)
formats.extend(mpd_fmts)
subtitles = self._merge_subtitles(subtitles, mpd_subs)
else: else:
formats.append({ formats.append({
'url': video_url, 'url': video_url,
@ -114,4 +119,5 @@ class BYUtvIE(InfoExtractor):
'display_id': display_id, 'display_id': display_id,
'title': display_id, 'title': display_id,
'formats': formats, 'formats': formats,
'subtitles': subtitles,
}) })

20
yt_dlp/extractor/canvas.py
Unescape Escape View File

@ -83,24 +83,31 @@ class CanvasIE(InfoExtractor):
description = data.get('description') description = data.get('description')
formats = [] formats = []
subtitles = {}
for target in data['targetUrls']: for target in data['targetUrls']:
format_url, format_type = url_or_none(target.get('url')), str_or_none(target.get('type')) format_url, format_type = url_or_none(target.get('url')), str_or_none(target.get('type'))
if not format_url or not format_type: if not format_url or not format_type:
continue continue
format_type = format_type.upper() format_type = format_type.upper()
if format_type in self._HLS_ENTRY_PROTOCOLS_MAP: if format_type in self._HLS_ENTRY_PROTOCOLS_MAP:
formats.extend(self._extract_m3u8_formats( fmts, subs = self._extract_m3u8_formats_and_subtitles(
format_url, video_id, 'mp4', self._HLS_ENTRY_PROTOCOLS_MAP[format_type], format_url, video_id, 'mp4', self._HLS_ENTRY_PROTOCOLS_MAP[format_type],
m3u8_id=format_type, fatal=False)) m3u8_id=format_type, fatal=False)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
elif format_type == 'HDS': elif format_type == 'HDS':
formats.extend(self._extract_f4m_formats( formats.extend(self._extract_f4m_formats(
format_url, video_id, f4m_id=format_type, fatal=False)) format_url, video_id, f4m_id=format_type, fatal=False))
elif format_type == 'MPEG_DASH': elif format_type == 'MPEG_DASH':
formats.extend(self._extract_mpd_formats( fmts, subs = self._extract_mpd_formats_and_subtitles(
format_url, video_id, mpd_id=format_type, fatal=False)) format_url, video_id, mpd_id=format_type, fatal=False)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
elif format_type == 'HSS': elif format_type == 'HSS':
formats.extend(self._extract_ism_formats( fmts, subs = self._extract_ism_formats_and_subtitles(
format_url, video_id, ism_id='mss', fatal=False)) format_url, video_id, ism_id='mss', fatal=False)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
else: else:
formats.append({ formats.append({
'format_id': format_type, 'format_id': format_type,
@ -108,7 +115,6 @@ class CanvasIE(InfoExtractor):
}) })
self._sort_formats(formats) self._sort_formats(formats)
subtitles = {}
subtitle_urls = data.get('subtitleUrls') subtitle_urls = data.get('subtitleUrls')
if isinstance(subtitle_urls, list): if isinstance(subtitle_urls, list):
for subtitle in subtitle_urls: for subtitle in subtitle_urls:

288
yt_dlp/extractor/common.py
Unescape Escape View File

@ -1879,11 +1879,21 @@ class InfoExtractor(object):
'format_note': 'Quality selection URL', 'format_note': 'Quality selection URL',
} }
def _extract_m3u8_formats(self, m3u8_url, video_id, ext=None, def _extract_m3u8_formats(self, *args, **kwargs):
entry_protocol='m3u8', preference=None, quality=None, fmts, subs = self._extract_m3u8_formats_and_subtitles(*args, **kwargs)
m3u8_id=None, note=None, errnote=None, if subs:
fatal=True, live=False, data=None, headers={}, self.report_warning(bug_reports_message(
query={}): "Ignoring subtitle tracks found in the HLS manifest; "
"if any subtitle tracks are missing,"
))
return fmts
def _extract_m3u8_formats_and_subtitles(
self, m3u8_url, video_id, ext=None, entry_protocol='m3u8',
preference=None, quality=None, m3u8_id=None, note=None,
errnote=None, fatal=True, live=False, data=None, headers={},
query={}):
res = self._download_webpage_handle( res = self._download_webpage_handle(
m3u8_url, video_id, m3u8_url, video_id,
note=note or 'Downloading m3u8 information', note=note or 'Downloading m3u8 information',
@ -1891,30 +1901,34 @@ class InfoExtractor(object):
fatal=fatal, data=data, headers=headers, query=query) fatal=fatal, data=data, headers=headers, query=query)
if res is False: if res is False:
return [] return [], {}
m3u8_doc, urlh = res m3u8_doc, urlh = res
m3u8_url = urlh.geturl() m3u8_url = urlh.geturl()
return self._parse_m3u8_formats( return self._parse_m3u8_formats_and_subtitles(
m3u8_doc, m3u8_url, ext=ext, entry_protocol=entry_protocol, m3u8_doc, m3u8_url, ext=ext, entry_protocol=entry_protocol,
preference=preference, quality=quality, m3u8_id=m3u8_id, preference=preference, quality=quality, m3u8_id=m3u8_id,
note=note, errnote=errnote, fatal=fatal, live=live, data=data, note=note, errnote=errnote, fatal=fatal, live=live, data=data,
headers=headers, query=query, video_id=video_id) headers=headers, query=query, video_id=video_id)
def _parse_m3u8_formats(self, m3u8_doc, m3u8_url, ext=None, def _parse_m3u8_formats_and_subtitles(
entry_protocol='m3u8', preference=None, quality=None, self, m3u8_doc, m3u8_url, ext=None, entry_protocol='m3u8',
m3u8_id=None, live=False, note=None, errnote=None, preference=None, quality=None, m3u8_id=None, live=False, note=None,
fatal=True, data=None, headers={}, query={}, video_id=None): errnote=None, fatal=True, data=None, headers={}, query={},
video_id=None):
if '#EXT-X-FAXS-CM:' in m3u8_doc: # Adobe Flash Access if '#EXT-X-FAXS-CM:' in m3u8_doc: # Adobe Flash Access
return [] return [], {}
if (not self._downloader.params.get('allow_unplayable_formats') if (not self._downloader.params.get('allow_unplayable_formats')
and re.search(r'#EXT-X-SESSION-KEY:.*?URI="skd://', m3u8_doc)): # Apple FairPlay and re.search(r'#EXT-X-SESSION-KEY:.*?URI="skd://', m3u8_doc)): # Apple FairPlay
return [] return [], {}
formats = [] formats = []
subtitles = {}
format_url = lambda u: ( format_url = lambda u: (
u u
if re.match(r'^https?://', u) if re.match(r'^https?://', u)
@ -2001,7 +2015,7 @@ class InfoExtractor(object):
} }
formats.append(f) formats.append(f)
return formats return formats, subtitles
groups = {} groups = {}
last_stream_inf = {} last_stream_inf = {}
@ -2013,6 +2027,21 @@ class InfoExtractor(object):
if not (media_type and group_id and name): if not (media_type and group_id and name):
return return
groups.setdefault(group_id, []).append(media) groups.setdefault(group_id, []).append(media)
# <https://tools.ietf.org/html/rfc8216#section-4.3.4.1>
if media_type == 'SUBTITLES':
lang = media['LANGUAGE'] # XXX: normalise?
url = format_url(media['URI'])
sub_info = {
'url': url,
'ext': determine_ext(url),
}
if sub_info['ext'] == 'm3u8':
# Per RFC 8216 §3.1, the only possible subtitle format m3u8
# files may contain is WebVTT:
# <https://tools.ietf.org/html/rfc8216#section-3.1>
sub_info['ext'] = 'vtt'
sub_info['protocol'] = 'm3u8_native'
subtitles.setdefault(lang, []).append(sub_info)
if media_type not in ('VIDEO', 'AUDIO'): if media_type not in ('VIDEO', 'AUDIO'):
return return
media_url = media.get('URI') media_url = media.get('URI')
@ -2160,7 +2189,7 @@ class InfoExtractor(object):
formats.append(http_f) formats.append(http_f)
last_stream_inf = {} last_stream_inf = {}
return formats return formats, subtitles
@staticmethod @staticmethod
def _xpath_ns(path, namespace=None): def _xpath_ns(path, namespace=None):
@ -2403,23 +2432,44 @@ class InfoExtractor(object):
}) })
return entries return entries
def _extract_mpd_formats(self, mpd_url, video_id, mpd_id=None, note=None, errnote=None, fatal=True, data=None, headers={}, query={}): def _extract_mpd_formats(self, *args, **kwargs):
fmts, subs = self._extract_mpd_formats_and_subtitles(*args, **kwargs)
if subs:
self.report_warning(bug_reports_message(
"Ignoring subtitle tracks found in the DASH manifest; "
"if any subtitle tracks are missing,"
))
return fmts
def _extract_mpd_formats_and_subtitles(
self, mpd_url, video_id, mpd_id=None, note=None, errnote=None,
fatal=True, data=None, headers={}, query={}):
res = self._download_xml_handle( res = self._download_xml_handle(
mpd_url, video_id, mpd_url, video_id,
note=note or 'Downloading MPD manifest', note=note or 'Downloading MPD manifest',
errnote=errnote or 'Failed to download MPD manifest', errnote=errnote or 'Failed to download MPD manifest',
fatal=fatal, data=data, headers=headers, query=query) fatal=fatal, data=data, headers=headers, query=query)
if res is False: if res is False:
return [] return [], {}
mpd_doc, urlh = res mpd_doc, urlh = res
if mpd_doc is None: if mpd_doc is None:
return [] return [], {}
mpd_base_url = base_url(urlh.geturl()) mpd_base_url = base_url(urlh.geturl())
return self._parse_mpd_formats( return self._parse_mpd_formats_and_subtitles(
mpd_doc, mpd_id, mpd_base_url, mpd_url) mpd_doc, mpd_id, mpd_base_url, mpd_url)
def _parse_mpd_formats(self, mpd_doc, mpd_id=None, mpd_base_url='', mpd_url=None): def _parse_mpd_formats(self, *args, **kwargs):
fmts, subs = self._parse_mpd_formats_and_subtitles(*args, **kwargs)
if subs:
self.report_warning(bug_reports_message(
"Ignoring subtitle tracks found in the DASH manifest; "
"if any subtitle tracks are missing,"
))
return fmts
def _parse_mpd_formats_and_subtitles(
self, mpd_doc, mpd_id=None, mpd_base_url='', mpd_url=None):
""" """
Parse formats from MPD manifest. Parse formats from MPD manifest.
References: References:
@ -2429,7 +2479,7 @@ class InfoExtractor(object):
""" """
if not self._downloader.params.get('dynamic_mpd', True): if not self._downloader.params.get('dynamic_mpd', True):
if mpd_doc.get('type') == 'dynamic': if mpd_doc.get('type') == 'dynamic':
return [] return [], {}
namespace = self._search_regex(r'(?i)^{([^}]+)?}MPD$', mpd_doc.tag, 'namespace', default=None) namespace = self._search_regex(r'(?i)^{([^}]+)?}MPD$', mpd_doc.tag, 'namespace', default=None)
@ -2501,6 +2551,7 @@ class InfoExtractor(object):
mpd_duration = parse_duration(mpd_doc.get('mediaPresentationDuration')) mpd_duration = parse_duration(mpd_doc.get('mediaPresentationDuration'))
formats = [] formats = []
subtitles = {}
for period in mpd_doc.findall(_add_ns('Period')): for period in mpd_doc.findall(_add_ns('Period')):
period_duration = parse_duration(period.get('duration')) or mpd_duration period_duration = parse_duration(period.get('duration')) or mpd_duration
period_ms_info = extract_multisegment_info(period, { period_ms_info = extract_multisegment_info(period, {
@ -2518,11 +2569,9 @@ class InfoExtractor(object):
representation_attrib.update(representation.attrib) representation_attrib.update(representation.attrib)
# According to [1, 5.3.7.2, Table 9, page 41], @mimeType is mandatory # According to [1, 5.3.7.2, Table 9, page 41], @mimeType is mandatory
mime_type = representation_attrib['mimeType'] mime_type = representation_attrib['mimeType']
content_type = mime_type.split('/')[0] content_type = representation_attrib.get('contentType', mime_type.split('/')[0])
if content_type == 'text':
# TODO implement WebVTT downloading if content_type in ('video', 'audio', 'text'):
pass
elif content_type in ('video', 'audio'):
base_url = '' base_url = ''
for element in (representation, adaptation_set, period, mpd_doc): for element in (representation, adaptation_set, period, mpd_doc):
base_url_e = element.find(_add_ns('BaseURL')) base_url_e = element.find(_add_ns('BaseURL'))
@ -2539,21 +2588,28 @@ class InfoExtractor(object):
url_el = representation.find(_add_ns('BaseURL')) url_el = representation.find(_add_ns('BaseURL'))
filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength') if url_el is not None else None) filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength') if url_el is not None else None)
bandwidth = int_or_none(representation_attrib.get('bandwidth')) bandwidth = int_or_none(representation_attrib.get('bandwidth'))
f = { if content_type in ('video', 'audio'):
'format_id': '%s-%s' % (mpd_id, representation_id) if mpd_id else representation_id, f = {
'manifest_url': mpd_url, 'format_id': '%s-%s' % (mpd_id, representation_id) if mpd_id else representation_id,
'ext': mimetype2ext(mime_type), 'manifest_url': mpd_url,
'width': int_or_none(representation_attrib.get('width')), 'ext': mimetype2ext(mime_type),
'height': int_or_none(representation_attrib.get('height')), 'width': int_or_none(representation_attrib.get('width')),
'tbr': float_or_none(bandwidth, 1000), 'height': int_or_none(representation_attrib.get('height')),
'asr': int_or_none(representation_attrib.get('audioSamplingRate')), 'tbr': float_or_none(bandwidth, 1000),
'fps': int_or_none(representation_attrib.get('frameRate')), 'asr': int_or_none(representation_attrib.get('audioSamplingRate')),
'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None, 'fps': int_or_none(representation_attrib.get('frameRate')),
'format_note': 'DASH %s' % content_type, 'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None,
'filesize': filesize, 'format_note': 'DASH %s' % content_type,
'container': mimetype2ext(mime_type) + '_dash', 'filesize': filesize,
} 'container': mimetype2ext(mime_type) + '_dash',
f.update(parse_codecs(representation_attrib.get('codecs'))) }
f.update(parse_codecs(representation_attrib.get('codecs')))
elif content_type == 'text':
f = {
'ext': mimetype2ext(mime_type),
'manifest_url': mpd_url,
'filesize': filesize,
}
representation_ms_info = extract_multisegment_info(representation, adaption_set_ms_info) representation_ms_info = extract_multisegment_info(representation, adaption_set_ms_info)
def prepare_template(template_name, identifiers): def prepare_template(template_name, identifiers):
@ -2700,26 +2756,38 @@ class InfoExtractor(object):
else: else:
# Assuming direct URL to unfragmented media. # Assuming direct URL to unfragmented media.
f['url'] = base_url f['url'] = base_url
formats.append(f) if content_type in ('video', 'audio'):
formats.append(f)
elif content_type == 'text':
subtitles.setdefault(lang or 'und', []).append(f)
else: else:
self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type) self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
return formats return formats, subtitles
def _extract_ism_formats(self, ism_url, video_id, ism_id=None, note=None, errnote=None, fatal=True, data=None, headers={}, query={}): def _extract_ism_formats(self, *args, **kwargs):
fmts, subs = self._extract_ism_formats_and_subtitles(*args, **kwargs)
if subs:
self.report_warning(bug_reports_message(
"Ignoring subtitle tracks found in the ISM manifest; "
"if any subtitle tracks are missing,"
))
return fmts
def _extract_ism_formats_and_subtitles(self, ism_url, video_id, ism_id=None, note=None, errnote=None, fatal=True, data=None, headers={}, query={}):
res = self._download_xml_handle( res = self._download_xml_handle(
ism_url, video_id, ism_url, video_id,
note=note or 'Downloading ISM manifest', note=note or 'Downloading ISM manifest',
errnote=errnote or 'Failed to download ISM manifest', errnote=errnote or 'Failed to download ISM manifest',
fatal=fatal, data=data, headers=headers, query=query) fatal=fatal, data=data, headers=headers, query=query)
if res is False: if res is False:
return [] return [], {}
ism_doc, urlh = res ism_doc, urlh = res
if ism_doc is None: if ism_doc is None:
return [] return [], {}
return self._parse_ism_formats(ism_doc, urlh.geturl(), ism_id) return self._parse_ism_formats_and_subtitles(ism_doc, urlh.geturl(), ism_id)
def _parse_ism_formats(self, ism_doc, ism_url, ism_id=None): def _parse_ism_formats_and_subtitles(self, ism_doc, ism_url, ism_id=None):
""" """
Parse formats from ISM manifest. Parse formats from ISM manifest.
References: References:
@ -2727,26 +2795,28 @@ class InfoExtractor(object):
https://msdn.microsoft.com/en-us/library/ff469518.aspx https://msdn.microsoft.com/en-us/library/ff469518.aspx
""" """
if ism_doc.get('IsLive') == 'TRUE': if ism_doc.get('IsLive') == 'TRUE':
return [] return [], {}
if (not self._downloader.params.get('allow_unplayable_formats') if (not self._downloader.params.get('allow_unplayable_formats')
and ism_doc.find('Protection') is not None): and ism_doc.find('Protection') is not None):
return [] return [], {}
duration = int(ism_doc.attrib['Duration']) duration = int(ism_doc.attrib['Duration'])
timescale = int_or_none(ism_doc.get('TimeScale')) or 10000000 timescale = int_or_none(ism_doc.get('TimeScale')) or 10000000
formats = [] formats = []
subtitles = {}
for stream in ism_doc.findall('StreamIndex'): for stream in ism_doc.findall('StreamIndex'):
stream_type = stream.get('Type') stream_type = stream.get('Type')
if stream_type not in ('video', 'audio'): if stream_type not in ('video', 'audio', 'text'):
continue continue
url_pattern = stream.attrib['Url'] url_pattern = stream.attrib['Url']
stream_timescale = int_or_none(stream.get('TimeScale')) or timescale stream_timescale = int_or_none(stream.get('TimeScale')) or timescale
stream_name = stream.get('Name') stream_name = stream.get('Name')
stream_language = stream.get('Language', 'und')
for track in stream.findall('QualityLevel'): for track in stream.findall('QualityLevel'):
fourcc = track.get('FourCC', 'AACL' if track.get('AudioTag') == '255' else None) fourcc = track.get('FourCC', 'AACL' if track.get('AudioTag') == '255' else None)
# TODO: add support for WVC1 and WMAP # TODO: add support for WVC1 and WMAP
if fourcc not in ('H264', 'AVC1', 'AACL'): if fourcc not in ('H264', 'AVC1', 'AACL', 'TTML'):
self.report_warning('%s is not a supported codec' % fourcc) self.report_warning('%s is not a supported codec' % fourcc)
continue continue
tbr = int(track.attrib['Bitrate']) // 1000 tbr = int(track.attrib['Bitrate']) // 1000
@ -2789,33 +2859,52 @@ class InfoExtractor(object):
format_id.append(stream_name) format_id.append(stream_name)
format_id.append(compat_str(tbr)) format_id.append(compat_str(tbr))
formats.append({ if stream_type == 'text':
'format_id': '-'.join(format_id), subtitles.setdefault(stream_language, []).append({
'url': ism_url, 'ext': 'ismt',
'manifest_url': ism_url, 'protocol': 'ism',
'ext': 'ismv' if stream_type == 'video' else 'isma', 'url': ism_url,
'width': width, 'manifest_url': ism_url,
'height': height, 'fragments': fragments,
'tbr': tbr, '_download_params': {
'asr': sampling_rate, 'stream_type': stream_type,
'vcodec': 'none' if stream_type == 'audio' else fourcc, 'duration': duration,
'acodec': 'none' if stream_type == 'video' else fourcc, 'timescale': stream_timescale,
'protocol': 'ism', 'fourcc': fourcc,
'fragments': fragments, 'language': stream_language,
'_download_params': { 'codec_private_data': track.get('CodecPrivateData'),
'duration': duration, }
'timescale': stream_timescale, })
'width': width or 0, elif stream_type in ('video', 'audio'):
'height': height or 0, formats.append({
'fourcc': fourcc, 'format_id': '-'.join(format_id),
'codec_private_data': track.get('CodecPrivateData'), 'url': ism_url,
'sampling_rate': sampling_rate, 'manifest_url': ism_url,
'channels': int_or_none(track.get('Channels', 2)), 'ext': 'ismv' if stream_type == 'video' else 'isma',
'bits_per_sample': int_or_none(track.get('BitsPerSample', 16)), 'width': width,
'nal_unit_length_field': int_or_none(track.get('NALUnitLengthField', 4)), 'height': height,
}, 'tbr': tbr,
}) 'asr': sampling_rate,
return formats 'vcodec': 'none' if stream_type == 'audio' else fourcc,
'acodec': 'none' if stream_type == 'video' else fourcc,
'protocol': 'ism',
'fragments': fragments,
'_download_params': {
'stream_type': stream_type,
'duration': duration,
'timescale': stream_timescale,
'width': width or 0,
'height': height or 0,
'fourcc': fourcc,
'language': stream_language,
'codec_private_data': track.get('CodecPrivateData'),
'sampling_rate': sampling_rate,
'channels': int_or_none(track.get('Channels', 2)),
'bits_per_sample': int_or_none(track.get('BitsPerSample', 16)),
'nal_unit_length_field': int_or_none(track.get('NALUnitLengthField', 4)),
},
})
return formats, subtitles
def _parse_html5_media_entries(self, base_url, webpage, video_id, m3u8_id=None, m3u8_entry_protocol='m3u8', mpd_id=None, preference=None, quality=None): def _parse_html5_media_entries(self, base_url, webpage, video_id, m3u8_id=None, m3u8_entry_protocol='m3u8', mpd_id=None, preference=None, quality=None):
def absolute_url(item_url): def absolute_url(item_url):
@ -2940,7 +3029,16 @@ class InfoExtractor(object):
entries.append(media_info) entries.append(media_info)
return entries return entries
def _extract_akamai_formats(self, manifest_url, video_id, hosts={}): def _extract_akamai_formats(self, *args, **kwargs):
fmts, subs = self._extract_akamai_formats_and_subtitles(*args, **kwargs)
if subs:
self.report_warning(bug_reports_message(
"Ignoring subtitle tracks found in the manifests; "
"if any subtitle tracks are missing,"
))
return fmts
def _extract_akamai_formats_and_subtitles(self, manifest_url, video_id, hosts={}):
signed = 'hdnea=' in manifest_url signed = 'hdnea=' in manifest_url
if not signed: if not signed:
# https://learn.akamai.com/en-us/webhelp/media-services-on-demand/stream-packaging-user-guide/GUID-BE6C0F73-1E06-483B-B0EA-57984B91B7F9.html # https://learn.akamai.com/en-us/webhelp/media-services-on-demand/stream-packaging-user-guide/GUID-BE6C0F73-1E06-483B-B0EA-57984B91B7F9.html
@ -2949,6 +3047,7 @@ class InfoExtractor(object):
'', manifest_url).strip('?') '', manifest_url).strip('?')
formats = [] formats = []
subtitles = {}
hdcore_sign = 'hdcore=3.7.0' hdcore_sign = 'hdcore=3.7.0'
f4m_url = re.sub(r'(https?://[^/]+)/i/', r'\1/z/', manifest_url).replace('/master.m3u8', '/manifest.f4m') f4m_url = re.sub(r'(https?://[^/]+)/i/', r'\1/z/', manifest_url).replace('/master.m3u8', '/manifest.f4m')
@ -2967,10 +3066,11 @@ class InfoExtractor(object):
hls_host = hosts.get('hls') hls_host = hosts.get('hls')
if hls_host: if hls_host:
m3u8_url = re.sub(r'(https?://)[^/]+', r'\1' + hls_host, m3u8_url) m3u8_url = re.sub(r'(https?://)[^/]+', r'\1' + hls_host, m3u8_url)
m3u8_formats = self._extract_m3u8_formats( m3u8_formats, m3u8_subtitles = self._extract_m3u8_formats_and_subtitles(
m3u8_url, video_id, 'mp4', 'm3u8_native', m3u8_url, video_id, 'mp4', 'm3u8_native',
m3u8_id='hls', fatal=False) m3u8_id='hls', fatal=False)
formats.extend(m3u8_formats) formats.extend(m3u8_formats)
subtitles = self._merge_subtitles(subtitles, m3u8_subtitles)
http_host = hosts.get('http') http_host = hosts.get('http')
if http_host and m3u8_formats and not signed: if http_host and m3u8_formats and not signed:
@ -2994,7 +3094,7 @@ class InfoExtractor(object):
formats.append(http_f) formats.append(http_f)
i += 1 i += 1
return formats return formats, subtitles
def _extract_wowza_formats(self, url, video_id, m3u8_entry_protocol='m3u8_native', skip_protocols=[]): def _extract_wowza_formats(self, url, video_id, m3u8_entry_protocol='m3u8_native', skip_protocols=[]):
query = compat_urlparse.urlparse(url).query query = compat_urlparse.urlparse(url).query
@ -3319,12 +3419,22 @@ class InfoExtractor(object):
return ret return ret
@classmethod @classmethod
def _merge_subtitles(cls, subtitle_dict1, subtitle_dict2): def _merge_subtitles(cls, *dicts, **kwargs):
""" Merge two subtitle dictionaries, language by language. """ """ Merge subtitle dictionaries, language by language. """
ret = dict(subtitle_dict1)
for lang in subtitle_dict2: target = (lambda target=None: target)(**kwargs)
ret[lang] = cls._merge_subtitle_items(subtitle_dict1.get(lang, []), subtitle_dict2[lang]) # The above lambda extracts the keyword argument 'target' from kwargs
return ret # while ensuring there are no stray ones. When Python 2 support
# is dropped, remove it and change the function signature to:
#
# def _merge_subtitles(cls, *dicts, target=None):
if target is None:
target = {}
for d in dicts:
for lang, subs in d.items():
target[lang] = cls._merge_subtitle_items(target.get(lang, []), subs)
return target
def extract_automatic_captions(self, *args, **kwargs): def extract_automatic_captions(self, *args, **kwargs):
if (self._downloader.params.get('writeautomaticsub', False) if (self._downloader.params.get('writeautomaticsub', False)

82
yt_dlp/extractor/elonet.py
Unescape Escape View File

@ -1,9 +1,7 @@
# coding: utf-8 # coding: utf-8
from __future__ import unicode_literals from __future__ import unicode_literals
import os
import re import re
import tempfile
from .common import InfoExtractor from .common import InfoExtractor
from ..utils import ( from ..utils import (
@ -12,12 +10,12 @@ from ..utils import (
try_get, try_get,
) )
from ..compat import compat_str from ..compat import compat_str
from ..downloader.hls import HlsFD
class ElonetIE(InfoExtractor): class ElonetIE(InfoExtractor):
_VALID_URL = r'https?://elonet\.finna\.fi/Record/kavi\.elonet_elokuva_(?P<id>[0-9]+)' _VALID_URL = r'https?://elonet\.finna\.fi/Record/kavi\.elonet_elokuva_(?P<id>[0-9]+)'
_TEST = { _TESTS = [{
# m3u8 with subtitles
'url': 'https://elonet.finna.fi/Record/kavi.elonet_elokuva_107867', 'url': 'https://elonet.finna.fi/Record/kavi.elonet_elokuva_107867',
'md5': '8efc954b96c543711707f87de757caea', 'md5': '8efc954b96c543711707f87de757caea',
'info_dict': { 'info_dict': {
@ -27,62 +25,17 @@ class ElonetIE(InfoExtractor):
'description': 'Valkoinen peura (1952) on Erik Blombergin ohjaama ja yhdessä Mirjami Kuosmasen kanssa käsikirjoittama tarunomainen kertomus valkoisen peuran hahmossa lii...', 'description': 'Valkoinen peura (1952) on Erik Blombergin ohjaama ja yhdessä Mirjami Kuosmasen kanssa käsikirjoittama tarunomainen kertomus valkoisen peuran hahmossa lii...',
'thumbnail': 'https://elonet.finna.fi/Cover/Show?id=kavi.elonet_elokuva_107867&index=0&size=large', 'thumbnail': 'https://elonet.finna.fi/Cover/Show?id=kavi.elonet_elokuva_107867&index=0&size=large',
}, },
} }, {
# DASH with subtitles
def _download_m3u8_chunked_subtitle(self, chunklist_url): 'url': 'https://elonet.finna.fi/Record/kavi.elonet_elokuva_116539',
""" 'info_dict': {
Download VTT subtitles from pieces in manifest URL. 'id': '116539',
Return a string containing joined chunks with extra headers removed. 'ext': 'mp4',
""" 'title': 'Minulla on tiikeri',
with tempfile.NamedTemporaryFile(delete=True) as outfile: 'description': 'Pienellä pojalla, joka asuu kerrostalossa, on kotieläimenä tiikeri. Se on kuitenkin salaisuus. Kerrostalon räpätäti on Kotilaisen täti, joka on aina vali...',
fname = outfile.name 'thumbnail': 'https://elonet.finna.fi/Cover/Show?id=kavi.elonet_elokuva_116539&index=0&size=large&source=Solr',
hlsdl = HlsFD(self._downloader, {}) }
hlsdl.download(compat_str(fname), {"url": chunklist_url}) }]
with open(fname, 'r') as fin:
# Remove (some) headers
fdata = re.sub(r'X-TIMESTAMP-MAP.*\n+|WEBVTT\n+', '', fin.read())
os.remove(fname)
return "WEBVTT\n\n" + fdata
def _parse_m3u8_subtitles(self, m3u8_doc, m3u8_url):
"""
Parse subtitles from HLS / m3u8 manifest.
"""
subtitles = {}
baseurl = m3u8_url[:m3u8_url.rindex('/') + 1]
for line in m3u8_doc.split('\n'):
if 'EXT-X-MEDIA:TYPE=SUBTITLES' in line:
lang = self._search_regex(
r'LANGUAGE="(.+?)"', line, 'lang', default=False)
uri = self._search_regex(
r'URI="(.+?)"', line, 'uri', default=False)
if lang and uri:
data = self._download_m3u8_chunked_subtitle(baseurl + uri)
subtitles[lang] = [{'ext': 'vtt', 'data': data}]
return subtitles
def _parse_mpd_subtitles(self, mpd_doc):
"""
Parse subtitles from MPD manifest.
"""
ns = '{urn:mpeg:dash:schema:mpd:2011}'
subtitles = {}
for aset in mpd_doc.findall(".//%sAdaptationSet[@mimeType='text/vtt']" % (ns)):
lang = aset.attrib.get('lang', 'unk')
url = aset.find("./%sRepresentation/%sBaseURL" % (ns, ns)).text
subtitles[lang] = [{'ext': 'vtt', 'url': url}]
return subtitles
def _get_subtitles(self, fmt, doc, url):
if fmt == 'm3u8':
subs = self._parse_m3u8_subtitles(doc, url)
elif fmt == 'mpd':
subs = self._parse_mpd_subtitles(doc)
else:
self.report_warning(
"Cannot download subtitles from '%s' streams." % (fmt))
subs = {}
return subs
def _real_extract(self, url): def _real_extract(self, url):
video_id = self._match_id(url) video_id = self._match_id(url)
@ -101,8 +54,8 @@ class ElonetIE(InfoExtractor):
self._parse_json(json_s, video_id), self._parse_json(json_s, video_id),
lambda x: x[0]["src"], compat_str) lambda x: x[0]["src"], compat_str)
formats = [] formats = []
subtitles = {}
if re.search(r'\.m3u8\??', src): if re.search(r'\.m3u8\??', src):
fmt = 'm3u8'
res = self._download_webpage_handle( res = self._download_webpage_handle(
# elonet servers have certificate problems # elonet servers have certificate problems
src.replace('https:', 'http:'), video_id, src.replace('https:', 'http:'), video_id,
@ -111,11 +64,10 @@ class ElonetIE(InfoExtractor):
if res: if res:
doc, urlh = res doc, urlh = res
url = urlh.geturl() url = urlh.geturl()
formats = self._parse_m3u8_formats(doc, url) formats, subtitles = self._parse_m3u8_formats_and_subtitles(doc, url)
for f in formats: for f in formats:
f['ext'] = 'mp4' f['ext'] = 'mp4'
elif re.search(r'\.mpd\??', src): elif re.search(r'\.mpd\??', src):
fmt = 'mpd'
res = self._download_xml_handle( res = self._download_xml_handle(
src, video_id, src, video_id,
note='Downloading MPD manifest', note='Downloading MPD manifest',
@ -123,7 +75,7 @@ class ElonetIE(InfoExtractor):
if res: if res:
doc, urlh = res doc, urlh = res
url = base_url(urlh.geturl()) url = base_url(urlh.geturl())
formats = self._parse_mpd_formats(doc, mpd_base_url=url) formats, subtitles = self._parse_mpd_formats_and_subtitles(doc, mpd_base_url=url)
else: else:
raise ExtractorError("Unknown streaming format") raise ExtractorError("Unknown streaming format")
@ -133,5 +85,5 @@ class ElonetIE(InfoExtractor):
'description': description, 'description': description,
'thumbnail': thumbnail, 'thumbnail': thumbnail,
'formats': formats, 'formats': formats,
'subtitles': self.extract_subtitles(fmt, doc, url), 'subtitles': subtitles,
} }

20
yt_dlp/extractor/francetv.py
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@ -151,6 +151,7 @@ class FranceTVIE(InfoExtractor):
videos.append(fallback_info['video']) videos.append(fallback_info['video'])
formats = [] formats = []
subtitles = {}
for video in videos: for video in videos:
video_url = video.get('url') video_url = video.get('url')
if not video_url: if not video_url:
@ -171,10 +172,12 @@ class FranceTVIE(InfoExtractor):
sign(video_url, format_id) + '&hdcore=3.7.0&plugin=aasp-3.7.0.39.44', sign(video_url, format_id) + '&hdcore=3.7.0&plugin=aasp-3.7.0.39.44',
video_id, f4m_id=format_id, fatal=False)) video_id, f4m_id=format_id, fatal=False))
elif ext == 'm3u8': elif ext == 'm3u8':
formats.extend(self._extract_m3u8_formats( m3u8_fmts, m3u8_subs = self._extract_m3u8_formats_and_subtitles(
sign(video_url, format_id), video_id, 'mp4', sign(video_url, format_id), video_id, 'mp4',
entry_protocol='m3u8_native', m3u8_id=format_id, entry_protocol='m3u8_native', m3u8_id=format_id,
fatal=False)) fatal=False)
formats.extend(m3u8_fmts)
subtitles = self._merge_subtitles(subtitles, m3u8_subs)
elif ext == 'mpd': elif ext == 'mpd':
formats.extend(self._extract_mpd_formats( formats.extend(self._extract_mpd_formats(
sign(video_url, format_id), video_id, mpd_id=format_id, fatal=False)) sign(video_url, format_id), video_id, mpd_id=format_id, fatal=False))
@ -199,13 +202,12 @@ class FranceTVIE(InfoExtractor):
title += ' - %s' % subtitle title += ' - %s' % subtitle
title = title.strip() title = title.strip()
subtitles = {} subtitles.setdefault('fr', []).extend(
subtitles_list = [{ [{
'url': subformat['url'], 'url': subformat['url'],
'ext': subformat.get('format'), 'ext': subformat.get('format'),
} for subformat in info.get('subtitles', []) if subformat.get('url')] } for subformat in info.get('subtitles', []) if subformat.get('url')]
if subtitles_list: )
subtitles['fr'] = subtitles_list
return { return {
'id': video_id, 'id': video_id,

8
yt_dlp/extractor/generic.py
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@ -2444,8 +2444,9 @@ class GenericIE(InfoExtractor):
m = re.match(r'^(?P<type>audio|video|application(?=/(?:ogg$|(?:vnd\.apple\.|x-)?mpegurl)))/(?P<format_id>[^;\s]+)', content_type) m = re.match(r'^(?P<type>audio|video|application(?=/(?:ogg$|(?:vnd\.apple\.|x-)?mpegurl)))/(?P<format_id>[^;\s]+)', content_type)
if m: if m:
format_id = compat_str(m.group('format_id')) format_id = compat_str(m.group('format_id'))
subtitles = {}
if format_id.endswith('mpegurl'): if format_id.endswith('mpegurl'):
formats = self._extract_m3u8_formats(url, video_id, 'mp4') formats, subtitles = self._extract_m3u8_formats_and_subtitles(url, video_id, 'mp4')
elif format_id == 'f4m': elif format_id == 'f4m':
formats = self._extract_f4m_formats(url, video_id) formats = self._extract_f4m_formats(url, video_id)
else: else:
@ -2457,6 +2458,7 @@ class GenericIE(InfoExtractor):
info_dict['direct'] = True info_dict['direct'] = True
self._sort_formats(formats) self._sort_formats(formats)
info_dict['formats'] = formats info_dict['formats'] = formats
info_dict['subtitles'] = subtitles
return info_dict return info_dict
if not self._downloader.params.get('test', False) and not is_intentional: if not self._downloader.params.get('test', False) and not is_intentional:
@ -2510,7 +2512,7 @@ class GenericIE(InfoExtractor):
if doc.tag == 'rss': if doc.tag == 'rss':
return self._extract_rss(url, video_id, doc) return self._extract_rss(url, video_id, doc)
elif doc.tag == 'SmoothStreamingMedia': elif doc.tag == 'SmoothStreamingMedia':
info_dict['formats'] = self._parse_ism_formats(doc, url) info_dict['formats'], info_dict['subtitles'] = self._parse_ism_formats_and_subtitles(doc, url)
self._sort_formats(info_dict['formats']) self._sort_formats(info_dict['formats'])
return info_dict return info_dict
elif re.match(r'^(?:{[^}]+})?smil$', doc.tag): elif re.match(r'^(?:{[^}]+})?smil$', doc.tag):
@ -2524,7 +2526,7 @@ class GenericIE(InfoExtractor):
xspf_base_url=full_response.geturl()), xspf_base_url=full_response.geturl()),
video_id) video_id)
elif re.match(r'(?i)^(?:{[^}]+})?MPD$', doc.tag): elif re.match(r'(?i)^(?:{[^}]+})?MPD$', doc.tag):
info_dict['formats'] = self._parse_mpd_formats( info_dict['formats'], info_dict['subtitles'] = self._parse_mpd_formats_and_subtitles(
doc, doc,
mpd_base_url=full_response.geturl().rpartition('/')[0], mpd_base_url=full_response.geturl().rpartition('/')[0],
mpd_url=url) mpd_url=url)

8
yt_dlp/extractor/nytimes.py
Unescape Escape View File

@ -46,6 +46,7 @@ class NYTimesBaseIE(InfoExtractor):
urls = [] urls = []
formats = [] formats = []
subtitles = {}
for video in video_data.get('renditions', []): for video in video_data.get('renditions', []):
video_url = video.get('url') video_url = video.get('url')
format_id = video.get('type') format_id = video.get('type')
@ -54,9 +55,11 @@ class NYTimesBaseIE(InfoExtractor):
urls.append(video_url) urls.append(video_url)
ext = mimetype2ext(video.get('mimetype')) or determine_ext(video_url) ext = mimetype2ext(video.get('mimetype')) or determine_ext(video_url)
if ext == 'm3u8': if ext == 'm3u8':
formats.extend(self._extract_m3u8_formats( m3u8_fmts, m3u8_subs = self._extract_m3u8_formats_and_subtitles(
video_url, video_id, 'mp4', 'm3u8_native', video_url, video_id, 'mp4', 'm3u8_native',
m3u8_id=format_id or 'hls', fatal=False)) m3u8_id=format_id or 'hls', fatal=False)
formats.extend(m3u8_fmts)
subtitles = self._merge_subtitles(subtitles, m3u8_subs)
elif ext == 'mpd': elif ext == 'mpd':
continue continue
# formats.extend(self._extract_mpd_formats( # formats.extend(self._extract_mpd_formats(
@ -96,6 +99,7 @@ class NYTimesBaseIE(InfoExtractor):
'uploader': video_data.get('byline'), 'uploader': video_data.get('byline'),
'duration': float_or_none(video_data.get('duration'), 1000), 'duration': float_or_none(video_data.get('duration'), 1000),
'formats': formats, 'formats': formats,
'subtitles': subtitles,
'thumbnails': thumbnails, 'thumbnails': thumbnails,
} }

31
yt_dlp/extractor/roosterteeth.py
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@ -103,7 +103,7 @@ class RoosterTeethIE(InfoExtractor):
api_episode_url + '/videos', display_id, api_episode_url + '/videos', display_id,
'Downloading video JSON metadata')['data'][0] 'Downloading video JSON metadata')['data'][0]
m3u8_url = video_data['attributes']['url'] m3u8_url = video_data['attributes']['url']
subtitle_m3u8_url = video_data['links']['download'] # XXX: additional URL at video_data['links']['download']
except ExtractorError as e: except ExtractorError as e:
if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403: if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
if self._parse_json(e.cause.read().decode(), display_id).get('access') is False: if self._parse_json(e.cause.read().decode(), display_id).get('access') is False:
@ -111,7 +111,7 @@ class RoosterTeethIE(InfoExtractor):
'%s is only available for FIRST members' % display_id) '%s is only available for FIRST members' % display_id)
raise raise
formats = self._extract_m3u8_formats( formats, subtitles = self._extract_m3u8_formats_and_subtitles(
m3u8_url, display_id, 'mp4', 'm3u8_native', m3u8_id='hls') m3u8_url, display_id, 'mp4', 'm3u8_native', m3u8_id='hls')
self._sort_formats(formats) self._sort_formats(formats)
@ -134,33 +134,6 @@ class RoosterTeethIE(InfoExtractor):
'url': img_url, 'url': img_url,
}) })
subtitles = {}
res = self._download_webpage_handle(
subtitle_m3u8_url, display_id,
'Downloading m3u8 information',
'Failed to download m3u8 information',
fatal=True, data=None, headers={}, query={})
if res is not False:
subtitle_m3u8_doc, _ = res
for line in subtitle_m3u8_doc.split('\n'):
if 'EXT-X-MEDIA:TYPE=SUBTITLES' in line:
parts = line.split(',')
for part in parts:
if 'LANGUAGE' in part:
lang = part[part.index('=') + 2:-1]
elif 'URI' in part:
uri = part[part.index('=') + 2:-1]
res = self._download_webpage_handle(
uri, display_id,
'Downloading m3u8 information',
'Failed to download m3u8 information',
fatal=True, data=None, headers={}, query={})
doc, _ = res
for l in doc.split('\n'):
if not l.startswith('#'):
subtitles[lang] = [{'url': uri[:-uri[::-1].index('/')] + l}]
break
return { return {
'id': video_id, 'id': video_id,
'display_id': display_id, 'display_id': display_id,

14
yt_dlp/extractor/srgssr.py
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@ -87,6 +87,7 @@ class SRGSSRIE(InfoExtractor):
title = media_data['title'] title = media_data['title']
formats = [] formats = []
subtitles = {}
q = qualities(['SD', 'HD']) q = qualities(['SD', 'HD'])
for source in (media_data.get('resourceList') or []): for source in (media_data.get('resourceList') or []):
format_url = source.get('url') format_url = source.get('url')
@ -104,12 +105,16 @@ class SRGSSRIE(InfoExtractor):
if source.get('tokenType') == 'AKAMAI': if source.get('tokenType') == 'AKAMAI':
format_url = self._get_tokenized_src( format_url = self._get_tokenized_src(
format_url, media_id, format_id) format_url, media_id, format_id)
formats.extend(self._extract_akamai_formats( fmts, subs = self._extract_akamai_formats_and_subtitles(
format_url, media_id)) format_url, media_id)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
elif protocol == 'HLS': elif protocol == 'HLS':
formats.extend(self._extract_m3u8_formats( m3u8_fmts, m3u8_subs = self._extract_m3u8_formats_and_subtitles(
format_url, media_id, 'mp4', 'm3u8_native', format_url, media_id, 'mp4', 'm3u8_native',
m3u8_id=format_id, fatal=False)) m3u8_id=format_id, fatal=False)
formats.extend(m3u8_fmts)
subtitles = self._merge_subtitles(subtitles, m3u8_subs)
elif protocol in ('HTTP', 'HTTPS'): elif protocol in ('HTTP', 'HTTPS'):
formats.append({ formats.append({
'format_id': format_id, 'format_id': format_id,
@ -133,7 +138,6 @@ class SRGSSRIE(InfoExtractor):
}) })
self._sort_formats(formats) self._sort_formats(formats)
subtitles = {}
if media_type == 'video': if media_type == 'video':
for sub in (media_data.get('subtitleList') or []): for sub in (media_data.get('subtitleList') or []):
sub_url = sub.get('url') sub_url = sub.get('url')

14
yt_dlp/extractor/threeqsdn.py
Unescape Escape View File

@ -99,16 +99,21 @@ class ThreeQSDNIE(InfoExtractor):
aspect = float_or_none(config.get('aspect')) aspect = float_or_none(config.get('aspect'))
formats = [] formats = []
subtitles = {}
for source_type, source in (config.get('sources') or {}).items(): for source_type, source in (config.get('sources') or {}).items():
if not source: if not source:
continue continue
if source_type == 'dash': if source_type == 'dash':
formats.extend(self._extract_mpd_formats( fmts, subs = self._extract_mpd_formats_and_subtitles(
source, video_id, mpd_id='mpd', fatal=False)) source, video_id, mpd_id='mpd', fatal=False)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
elif source_type == 'hls': elif source_type == 'hls':
formats.extend(self._extract_m3u8_formats( fmts, subs = self._extract_m3u8_formats_and_subtitles(
source, video_id, 'mp4', 'm3u8' if live else 'm3u8_native', source, video_id, 'mp4', 'm3u8' if live else 'm3u8_native',
m3u8_id='hls', fatal=False)) m3u8_id='hls', fatal=False)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
elif source_type == 'progressive': elif source_type == 'progressive':
for s in source: for s in source:
src = s.get('src') src = s.get('src')
@ -138,7 +143,6 @@ class ThreeQSDNIE(InfoExtractor):
# behaviour is being kept as-is # behaviour is being kept as-is
self._sort_formats(formats, ('res', 'source_preference')) self._sort_formats(formats, ('res', 'source_preference'))
subtitles = {}
for subtitle in (config.get('subtitles') or []): for subtitle in (config.get('subtitles') or []):
src = subtitle.get('src') src = subtitle.get('src')
if not src: if not src:

29
yt_dlp/extractor/tv4.py
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@ -93,18 +93,31 @@ class TV4IE(InfoExtractor):
'device': 'browser', 'device': 'browser',
'protocol': 'hls', 'protocol': 'hls',
})['playbackItem']['manifestUrl'] })['playbackItem']['manifestUrl']
formats = self._extract_m3u8_formats( formats = []
subtitles = {}
fmts, subs = self._extract_m3u8_formats_and_subtitles(
manifest_url, video_id, 'mp4', manifest_url, video_id, 'mp4',
'm3u8_native', m3u8_id='hls', fatal=False) 'm3u8_native', m3u8_id='hls', fatal=False)
formats.extend(self._extract_mpd_formats( formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
fmts, subs = self._extract_mpd_formats_and_subtitles(
manifest_url.replace('.m3u8', '.mpd'), manifest_url.replace('.m3u8', '.mpd'),
video_id, mpd_id='dash', fatal=False)) video_id, mpd_id='dash', fatal=False)
formats.extend(self._extract_f4m_formats( formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
fmts = self._extract_f4m_formats(
manifest_url.replace('.m3u8', '.f4m'), manifest_url.replace('.m3u8', '.f4m'),
video_id, f4m_id='hds', fatal=False)) video_id, f4m_id='hds', fatal=False)
formats.extend(self._extract_ism_formats( formats.extend(fmts)
fmts, subs = self._extract_ism_formats_and_subtitles(
re.sub(r'\.ism/.*?\.m3u8', r'.ism/Manifest', manifest_url), re.sub(r'\.ism/.*?\.m3u8', r'.ism/Manifest', manifest_url),
video_id, ism_id='mss', fatal=False)) video_id, ism_id='mss', fatal=False)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
if not formats and info.get('is_geo_restricted'): if not formats and info.get('is_geo_restricted'):
self.raise_geo_restricted(countries=self._GEO_COUNTRIES, metadata_available=True) self.raise_geo_restricted(countries=self._GEO_COUNTRIES, metadata_available=True)
@ -115,7 +128,7 @@ class TV4IE(InfoExtractor):
'id': video_id, 'id': video_id,
'title': title, 'title': title,
'formats': formats, 'formats': formats,
# 'subtitles': subtitles, 'subtitles': subtitles,
'description': info.get('description'), 'description': info.get('description'),
'timestamp': parse_iso8601(info.get('broadcast_date_time')), 'timestamp': parse_iso8601(info.get('broadcast_date_time')),
'duration': int_or_none(info.get('duration')), 'duration': int_or_none(info.get('duration')),

28
yt_dlp/extractor/twitter.py
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@ -36,9 +36,9 @@ class TwitterBaseIE(InfoExtractor):
def _extract_variant_formats(self, variant, video_id): def _extract_variant_formats(self, variant, video_id):
variant_url = variant.get('url') variant_url = variant.get('url')
if not variant_url: if not variant_url:
return [] return [], {}
elif '.m3u8' in variant_url: elif '.m3u8' in variant_url:
return self._extract_m3u8_formats( return self._extract_m3u8_formats_and_subtitles(
variant_url, video_id, 'mp4', 'm3u8_native', variant_url, video_id, 'mp4', 'm3u8_native',
m3u8_id='hls', fatal=False) m3u8_id='hls', fatal=False)
else: else:
@ -49,22 +49,27 @@ class TwitterBaseIE(InfoExtractor):
'tbr': tbr, 'tbr': tbr,
} }
self._search_dimensions_in_video_url(f, variant_url) self._search_dimensions_in_video_url(f, variant_url)
return [f] return [f], {}
def _extract_formats_from_vmap_url(self, vmap_url, video_id): def _extract_formats_from_vmap_url(self, vmap_url, video_id):
vmap_data = self._download_xml(vmap_url, video_id) vmap_data = self._download_xml(vmap_url, video_id)
formats = [] formats = []
subtitles = {}
urls = [] urls = []
for video_variant in vmap_data.findall('.//{http://twitter.com/schema/videoVMapV2.xsd}videoVariant'): for video_variant in vmap_data.findall('.//{http://twitter.com/schema/videoVMapV2.xsd}videoVariant'):
video_variant.attrib['url'] = compat_urllib_parse_unquote( video_variant.attrib['url'] = compat_urllib_parse_unquote(
video_variant.attrib['url']) video_variant.attrib['url'])
urls.append(video_variant.attrib['url']) urls.append(video_variant.attrib['url'])
formats.extend(self._extract_variant_formats( fmts, subs = self._extract_variant_formats(
video_variant.attrib, video_id)) video_variant.attrib, video_id)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
video_url = strip_or_none(xpath_text(vmap_data, './/MediaFile')) video_url = strip_or_none(xpath_text(vmap_data, './/MediaFile'))
if video_url not in urls: if video_url not in urls:
formats.extend(self._extract_variant_formats({'url': video_url}, video_id)) fmts, subs = self._extract_variant_formats({'url': video_url}, video_id)
return formats formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
return formats, subtitles
@staticmethod @staticmethod
def _search_dimensions_in_video_url(a_format, video_url): def _search_dimensions_in_video_url(a_format, video_url):
@ -471,8 +476,11 @@ class TwitterIE(TwitterBaseIE):
video_info = media.get('video_info') or {} video_info = media.get('video_info') or {}
formats = [] formats = []
subtitles = {}
for variant in video_info.get('variants', []): for variant in video_info.get('variants', []):
formats.extend(self._extract_variant_formats(variant, twid)) fmts, subs = self._extract_variant_formats(variant, twid)
subtitles = self._merge_subtitles(subtitles, subs)
formats.extend(fmts)
self._sort_formats(formats) self._sort_formats(formats)
thumbnails = [] thumbnails = []
@ -491,6 +499,7 @@ class TwitterIE(TwitterBaseIE):
info.update({ info.update({
'formats': formats, 'formats': formats,
'subtitles': subtitles,
'thumbnails': thumbnails, 'thumbnails': thumbnails,
'duration': float_or_none(video_info.get('duration_millis'), 1000), 'duration': float_or_none(video_info.get('duration_millis'), 1000),
}) })
@ -540,7 +549,7 @@ class TwitterIE(TwitterBaseIE):
is_amplify = card_name == 'amplify' is_amplify = card_name == 'amplify'
vmap_url = get_binding_value('amplify_url_vmap') if is_amplify else get_binding_value('player_stream_url') vmap_url = get_binding_value('amplify_url_vmap') if is_amplify else get_binding_value('player_stream_url')
content_id = get_binding_value('%s_content_id' % (card_name if is_amplify else 'player')) content_id = get_binding_value('%s_content_id' % (card_name if is_amplify else 'player'))
formats = self._extract_formats_from_vmap_url(vmap_url, content_id or twid) formats, subtitles = self._extract_formats_from_vmap_url(vmap_url, content_id or twid)
self._sort_formats(formats) self._sort_formats(formats)
thumbnails = [] thumbnails = []
@ -558,6 +567,7 @@ class TwitterIE(TwitterBaseIE):
info.update({ info.update({
'formats': formats, 'formats': formats,
'subtitles': subtitles,
'thumbnails': thumbnails, 'thumbnails': thumbnails,
'duration': int_or_none(get_binding_value( 'duration': int_or_none(get_binding_value(
'content_duration_seconds')), 'content_duration_seconds')),

3
yt_dlp/extractor/uplynk.py
Unescape Escape View File

@ -30,7 +30,7 @@ class UplynkIE(InfoExtractor):
def _extract_uplynk_info(self, uplynk_content_url): def _extract_uplynk_info(self, uplynk_content_url):
path, external_id, video_id, session_id = re.match(UplynkIE._VALID_URL, uplynk_content_url).groups() path, external_id, video_id, session_id = re.match(UplynkIE._VALID_URL, uplynk_content_url).groups()
display_id = video_id or external_id display_id = video_id or external_id
formats = self._extract_m3u8_formats( formats, subtitles = self._extract_m3u8_formats_and_subtitles(
'http://content.uplynk.com/%s.m3u8' % path, 'http://content.uplynk.com/%s.m3u8' % path,
display_id, 'mp4', 'm3u8_native') display_id, 'mp4', 'm3u8_native')
if session_id: if session_id:
@ -48,6 +48,7 @@ class UplynkIE(InfoExtractor):
'duration': float_or_none(asset.get('duration')), 'duration': float_or_none(asset.get('duration')),
'uploader_id': asset.get('owner'), 'uploader_id': asset.get('owner'),
'formats': formats, 'formats': formats,
'subtitles': subtitles,
} }
def _real_extract(self, url): def _real_extract(self, url):

14
yt_dlp/extractor/wat.py
Unescape Escape View File

@ -69,19 +69,24 @@ class WatIE(InfoExtractor):
title = video_info['title'] title = video_info['title']
formats = [] formats = []
subtitles = {}
def extract_formats(manifest_urls): def extract_formats(manifest_urls):
for f, f_url in manifest_urls.items(): for f, f_url in manifest_urls.items():
if not f_url: if not f_url:
continue continue
if f in ('dash', 'mpd'): if f in ('dash', 'mpd'):
formats.extend(self._extract_mpd_formats( fmts, subs = self._extract_mpd_formats_and_subtitles(
f_url.replace('://das-q1.tf1.fr/', '://das-q1-ssl.tf1.fr/'), f_url.replace('://das-q1.tf1.fr/', '://das-q1-ssl.tf1.fr/'),
video_id, mpd_id='dash', fatal=False)) video_id, mpd_id='dash', fatal=False)
elif f == 'hls': elif f == 'hls':
formats.extend(self._extract_m3u8_formats( fmts, subs = self._extract_m3u8_formats_and_subtitles(
f_url, video_id, 'mp4', f_url, video_id, 'mp4',
'm3u8_native', m3u8_id='hls', fatal=False)) 'm3u8_native', m3u8_id='hls', fatal=False)
else:
continue
formats.extend(fmts)
self._merge_subtitles(subs, target=subtitles)
delivery = video_data.get('delivery') or {} delivery = video_data.get('delivery') or {}
extract_formats({delivery.get('format'): delivery.get('url')}) extract_formats({delivery.get('format'): delivery.get('url')})
@ -103,4 +108,5 @@ class WatIE(InfoExtractor):
video_data, lambda x: x['mediametrie']['chapters'][0]['estatS4'])), video_data, lambda x: x['mediametrie']['chapters'][0]['estatS4'])),
'duration': int_or_none(video_info.get('duration')), 'duration': int_or_none(video_info.get('duration')),
'formats': formats, 'formats': formats,
'subtitles': subtitles,
} }

11
yt_dlp/utils.py
Unescape Escape View File

@ -2340,15 +2340,20 @@ def make_HTTPS_handler(params, **kwargs):
return YoutubeDLHTTPSHandler(params, context=context, **kwargs) return YoutubeDLHTTPSHandler(params, context=context, **kwargs)
def bug_reports_message(): def bug_reports_message(before=';'):
if ytdl_is_updateable(): if ytdl_is_updateable():
update_cmd = 'type yt-dlp -U to update' update_cmd = 'type yt-dlp -U to update'
else: else:
update_cmd = 'see https://github.com/yt-dlp/yt-dlp on how to update' update_cmd = 'see https://github.com/yt-dlp/yt-dlp on how to update'
msg = '; please report this issue on https://github.com/yt-dlp/yt-dlp .' msg = 'please report this issue on https://github.com/yt-dlp/yt-dlp .'
msg += ' Make sure you are using the latest version; %s.' % update_cmd msg += ' Make sure you are using the latest version; %s.' % update_cmd
msg += ' Be sure to call yt-dlp with the --verbose flag and include its complete output.' msg += ' Be sure to call yt-dlp with the --verbose flag and include its complete output.'
return msg
before = before.rstrip()
if not before or before.endswith(('.', '!', '?')):
msg = msg[0].title() + msg[1:]
return (before + ' ' if before else '') + msg
class YoutubeDLError(Exception): class YoutubeDLError(Exception):

378
yt_dlp/webvtt.py
Unescape Escape View File

@ -0,0 +1,378 @@
# coding: utf-8
from __future__ import unicode_literals, print_function, division
"""
A partial parser for WebVTT segments. Interprets enough of the WebVTT stream
to be able to assemble a single stand-alone subtitle file, suitably adjusting
timestamps on the way, while everything else is passed through unmodified.
Regular expressions based on the W3C WebVTT specification
<https://www.w3.org/TR/webvtt1/>. The X-TIMESTAMP-MAP extension is described
in RFC 8216 §3.5 <https://tools.ietf.org/html/rfc8216#section-3.5>.
"""
import re
import io
from .utils import int_or_none
from .compat import (
compat_str as str,
compat_Pattern,
compat_Match,
)
class _MatchParser(object):
"""
An object that maintains the current parsing position and allows
conveniently advancing it as syntax elements are successfully parsed.
"""
def __init__(self, string):
self._data = string
self._pos = 0
def match(self, r):
if isinstance(r, compat_Pattern):
return r.match(self._data, self._pos)
if isinstance(r, str):
if self._data.startswith(r, self._pos):
return len(r)
return None
raise ValueError(r)
def advance(self, by):
if by is None:
amt = 0
elif isinstance(by, compat_Match):
amt = len(by.group(0))
elif isinstance(by, str):
amt = len(by)
elif isinstance(by, int):
amt = by
else:
raise ValueError(by)
self._pos += amt
return by
def consume(self, r):
return self.advance(self.match(r))
def child(self):
return _MatchChildParser(self)
class _MatchChildParser(_MatchParser):
"""
A child parser state, which advances through the same data as
its parent, but has an independent position. This is useful when
advancing through syntax elements we might later want to backtrack
from.
"""
def __init__(self, parent):
super(_MatchChildParser, self).__init__(parent._data)
self.__parent = parent
self._pos = parent._pos
def commit(self):
"""
Advance the parent state to the current position of this child state.
"""
self.__parent._pos = self._pos
return self.__parent
class ParseError(Exception):
def __init__(self, parser):
super(ParseError, self).__init__("Parse error at position %u (near %r)" % (
parser._pos, parser._data[parser._pos:parser._pos + 20]
))
_REGEX_TS = re.compile(r'''(?x)
(?:([0-9]{2,}):)?
([0-9]{2}):
([0-9]{2})\.
([0-9]{3})?
''')
_REGEX_EOF = re.compile(r'\Z')
_REGEX_NL = re.compile(r'(?:\r\n|[\r\n])')
_REGEX_BLANK = re.compile(r'(?:\r\n|[\r\n])+')
def _parse_ts(ts):
"""
Convert a parsed WebVTT timestamp (a re.Match obtained from _REGEX_TS)
into an MPEG PES timestamp: a tick counter at 90 kHz resolution.
"""
h, min, s, ms = ts.groups()
return 90 * (
int(h or 0) * 3600000 + # noqa: W504,E221,E222
int(min) * 60000 + # noqa: W504,E221,E222
int(s) * 1000 + # noqa: W504,E221,E222
int(ms) # noqa: W504,E221,E222
)
def _format_ts(ts):
"""
Convert an MPEG PES timestamp into a WebVTT timestamp.
This will lose sub-millisecond precision.
"""
ts = int((ts + 45) // 90)
ms , ts = divmod(ts, 1000) # noqa: W504,E221,E222,E203
s , ts = divmod(ts, 60) # noqa: W504,E221,E222,E203
min, h = divmod(ts, 60) # noqa: W504,E221,E222
return '%02u:%02u:%02u.%03u' % (h, min, s, ms)
class Block(object):
"""
An abstract WebVTT block.
"""
def __init__(self, **kwargs):
for key, val in kwargs.items():
setattr(self, key, val)
@classmethod
def parse(cls, parser):
m = parser.match(cls._REGEX)
if not m:
return None
parser.advance(m)
return cls(raw=m.group(0))
def write_into(self, stream):
stream.write(self.raw)
class HeaderBlock(Block):
"""
A WebVTT block that may only appear in the header part of the file,
i.e. before any cue blocks.
"""
pass
class Magic(HeaderBlock):
_REGEX = re.compile(r'\ufeff?WEBVTT([ \t][^\r\n]*)?(?:\r\n|[\r\n])')
# XXX: The X-TIMESTAMP-MAP extension is described in RFC 8216 §3.5
# <https://tools.ietf.org/html/rfc8216#section-3.5>, but the RFC
# doesn’t specify the exact grammar nor where in the WebVTT
# syntax it should be placed; the below has been devised based
# on usage in the wild
#
# And strictly speaking, the presence of this extension violates
# the W3C WebVTT spec. Oh well.
_REGEX_TSMAP = re.compile(r'X-TIMESTAMP-MAP=')
_REGEX_TSMAP_LOCAL = re.compile(r'LOCAL:')
_REGEX_TSMAP_MPEGTS = re.compile(r'MPEGTS:([0-9]+)')
@classmethod
def __parse_tsmap(cls, parser):
parser = parser.child()
while True:
m = parser.consume(cls._REGEX_TSMAP_LOCAL)
if m:
m = parser.consume(_REGEX_TS)
if m is None:
raise ParseError(parser)
local = _parse_ts(m)
if local is None:
raise ParseError(parser)
else:
m = parser.consume(cls._REGEX_TSMAP_MPEGTS)
if m:
mpegts = int_or_none(m.group(1))
if mpegts is None:
raise ParseError(parser)
else:
raise ParseError(parser)
if parser.consume(','):
continue
if parser.consume(_REGEX_NL):
break
raise ParseError(parser)
parser.commit()
return local, mpegts
@classmethod
def parse(cls, parser):
parser = parser.child()
m = parser.consume(cls._REGEX)
if not m:
raise ParseError(parser)
extra = m.group(1)
local, mpegts = None, None
if parser.consume(cls._REGEX_TSMAP):
local, mpegts = cls.__parse_tsmap(parser)
if not parser.consume(_REGEX_NL):
raise ParseError(parser)
parser.commit()
return cls(extra=extra, mpegts=mpegts, local=local)
def write_into(self, stream):
stream.write('WEBVTT')
if self.extra is not None:
stream.write(self.extra)
stream.write('\n')
if self.local or self.mpegts:
stream.write('X-TIMESTAMP-MAP=LOCAL:')
stream.write(_format_ts(self.local if self.local is not None else 0))
stream.write(',MPEGTS:')
stream.write(str(self.mpegts if self.mpegts is not None else 0))
stream.write('\n')
stream.write('\n')
class StyleBlock(HeaderBlock):
_REGEX = re.compile(r'''(?x)
STYLE[\ \t]*(?:\r\n|[\r\n])
((?:(?!-->)[^\r\n])+(?:\r\n|[\r\n]))*
(?:\r\n|[\r\n])
''')
class RegionBlock(HeaderBlock):
_REGEX = re.compile(r'''(?x)
REGION[\ \t]*
((?:(?!-->)[^\r\n])+(?:\r\n|[\r\n]))*
(?:\r\n|[\r\n])
''')
class CommentBlock(Block):
_REGEX = re.compile(r'''(?x)
NOTE(?:\r\n|[\ \t\r\n])
((?:(?!-->)[^\r\n])+(?:\r\n|[\r\n]))*
(?:\r\n|[\r\n])
''')
class CueBlock(Block):
"""
A cue block. The payload is not interpreted.
"""
_REGEX_ID = re.compile(r'((?:(?!-->)[^\r\n])+)(?:\r\n|[\r\n])')
_REGEX_ARROW = re.compile(r'[ \t]+-->[ \t]+')
_REGEX_SETTINGS = re.compile(r'[ \t]+((?:(?!-->)[^\r\n])+)')
_REGEX_PAYLOAD = re.compile(r'[^\r\n]+(?:\r\n|[\r\n])?')
@classmethod
def parse(cls, parser):
parser = parser.child()
id = None
m = parser.consume(cls._REGEX_ID)
if m:
id = m.group(1)
m0 = parser.consume(_REGEX_TS)
if not m0:
return None
if not parser.consume(cls._REGEX_ARROW):
return None
m1 = parser.consume(_REGEX_TS)
if not m1:
return None
m2 = parser.consume(cls._REGEX_SETTINGS)
if not parser.consume(_REGEX_NL):
return None
start = _parse_ts(m0)
end = _parse_ts(m1)
settings = m2.group(1) if m2 is not None else None
text = io.StringIO()
while True:
m = parser.consume(cls._REGEX_PAYLOAD)
if not m:
break
text.write(m.group(0))
parser.commit()
return cls(
id=id,
start=start, end=end, settings=settings,
text=text.getvalue()
)
def write_into(self, stream):
if self.id is not None:
stream.write(self.id)
stream.write('\n')
stream.write(_format_ts(self.start))
stream.write(' --> ')
stream.write(_format_ts(self.end))
if self.settings is not None:
stream.write(' ')
stream.write(self.settings)
stream.write('\n')
stream.write(self.text)
stream.write('\n')
@property
def as_json(self):
return {
'id': self.id,
'start': self.start,
'end': self.end,
'text': self.text,
'settings': self.settings,
}
def parse_fragment(frag_content):
"""
A generator that yields (partially) parsed WebVTT blocks when given
a bytes object containing the raw contents of a WebVTT file.
"""
parser = _MatchParser(frag_content.decode('utf-8'))
yield Magic.parse(parser)
while not parser.match(_REGEX_EOF):
if parser.consume(_REGEX_BLANK):
continue
block = RegionBlock.parse(parser)
if block:
yield block
continue
block = StyleBlock.parse(parser)
if block:
yield block
continue
block = CommentBlock.parse(parser)
if block:
yield block # XXX: or skip
continue
break
while not parser.match(_REGEX_EOF):
if parser.consume(_REGEX_BLANK):
continue
block = CommentBlock.parse(parser)
if block:
yield block # XXX: or skip
continue
block = CueBlock.parse(parser)
if block:
yield block
continue
raise ParseError(parser)
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