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https://git.sr.ht/~cadence/NewLeaf
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Add DASH manifest endpoint
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Cadence Ember
parent
cf37afec2b
commit
831d67e990
@ -13,6 +13,7 @@ These endpoints are somewhat implemented:
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- `/api/v1/channels/{part}/{ucid}`
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- `/api/v1/search?q={search}`
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- `/vi/{id}/{file}`
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- `/api/manifest/dash/id/{id}`
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## The future
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109
index.py
109
index.py
@ -7,6 +7,8 @@ import re
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import json
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import traceback
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import requests
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import xml.etree.ElementTree as ET
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from cachetools import TTLCache
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ytdl_opts = {
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"quiet": True,
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@ -25,7 +27,14 @@ def length_text_to_seconds(text):
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return sum([int(x) * 60**(len(s)-i-1) for i, x in enumerate(s)])
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class Second(object):
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def __init__(self):
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self.video_cache = TTLCache(maxsize=50, ttl=300)
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def _cp_dispatch(self, vpath):
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if vpath[:4] == ["api", "manifest", "dash", "id"]:
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vpath[:4] = ["manifest"]
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return self
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if vpath[:2] == ["api", "v1"]:
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endpoints = [
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["channels", 1, 2],
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@ -42,37 +51,45 @@ class Second(object):
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@cherrypy.expose
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@cherrypy.tools.json_out()
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def videos(self, id):
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if id in self.video_cache:
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return self.video_cache[id]
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try:
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info = ytdl_save.extract_info(id, download=False)
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year = int(info["upload_date"][:4])
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month = int(info["upload_date"][4:6])
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day = int(info["upload_date"][6:8])
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published = int(datetime.datetime(year, month, day).timestamp())
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# Adaptive formats have either audio or video, format streams have both
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def format_is_adaptive(format):
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return format["acodec"] == "none" or format["vcodec"] == "none"
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# just the "type" field
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def format_type(format):
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sense = "audio"
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def format_mime(format):
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sense = "video" if format["vcodec"] != "none" else "audio"
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return "{}/{}".format(sense, format["ext"])
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def format_codecs(format):
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codecs = []
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if format["vcodec"] != "none":
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sense = "video"
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codecs.append(format["vcodec"])
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if format["acodec"] != "none":
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codecs.append(format["acodec"])
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return '{}/{}; codecs="{}"'.format(sense, format["ext"], ", ".join(codecs))
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return codecs
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def format_type(format):
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return '{}; codecs="{}"'.format(format_mime(format), ", ".join(format_codecs(format)))
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result = {
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"type": "video",
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"title": info["title"],
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"videoId": info["id"],
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"videoThumbnails": None,
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"videoThumbnails": [],
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"storyboards": None,
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"description": info["description"],
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"descriptionHtml": None,
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"published": int(datetime.datetime(year, month, day).timestamp()),
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"published": published,
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"publishedText": None,
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"keywords": None,
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"viewCount": info["view_count"],
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@ -107,6 +124,8 @@ class Second(object):
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"url": format["url"],
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"itag": format["format_id"],
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"type": format_type(format),
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"second__mime": format_mime(format),
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"second__codecs": format_codecs(format),
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"clen": str(format["filesize"]),
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"lmt": None,
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"projectionType": None,
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@ -122,6 +141,7 @@ class Second(object):
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"url": format["url"],
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"itag": format["format_id"],
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"type": format_type(format),
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"second__mime": format_mime(format),
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"quality": None,
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"fps": format["fps"],
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"container": format["ext"],
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@ -144,11 +164,12 @@ class Second(object):
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if len(possible_files) == 1:
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filename = possible_files[0]
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with open(filename) as file:
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r = re.compile(r"""^\s*window\["ytInitialData"\] = (\{.*\});\n?$""")
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r_yt_intial_data = re.compile(r"""^\s*window\["ytInitialData"\] = (\{.*\});\n?$""")
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r_yt_player_config = re.compile(r"""^\s*[^"]+"cfg"[^"]+ytplayer\.config = (\{.*\});ytplayer\.web_player_context_config = {".""")
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for line in file:
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match_result = re.search(r, line)
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if match_result:
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yt_initial_data = json.loads(match_result.group(1))
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m_yt_initial_data = re.search(r_yt_intial_data, line)
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if m_yt_initial_data:
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yt_initial_data = json.loads(m_yt_initial_data.group(1))
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views = yt_initial_data["contents"]["twoColumnWatchNextResults"]["results"]["results"]["contents"][0]\
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["videoPrimaryInfoRenderer"]["viewCount"]["videoViewCountRenderer"]
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result["second__viewCountText"] = views["viewCount"]["simpleText"]
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@ -208,6 +229,24 @@ class Second(object):
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"viewCount": get_view_count(r)
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} for r in [get_useful_recommendation_data(r) for r in recommendations if get_useful_recommendation_data(r)])
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m_yt_player_config = re.search(r_yt_player_config, line)
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if m_yt_player_config:
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yt_player_config = json.loads(m_yt_player_config.group(1))
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player_response = json.loads(yt_player_config["args"]["player_response"])
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itagDict = {}
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for f in player_response["streamingData"]["adaptiveFormats"]:
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itagDict[str(f["itag"])] = {
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"initRange": f["initRange"],
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"indexRange": f["indexRange"],
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"audioChannels": f["audioChannels"] if "audioChannels" in f else None
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}
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for f in result["adaptiveFormats"]:
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if f["itag"] in itagDict:
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i = itagDict[f["itag"]]
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f["init"] = "{}-{}".format(i["initRange"]["start"], i["initRange"]["end"])
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f["index"] = "{}-{}".format(i["indexRange"]["start"], i["indexRange"]["end"])
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f["second__audioChannels"] = i["audioChannels"]
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except Exception:
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traceback.print_exc()
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@ -215,7 +254,7 @@ class Second(object):
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for file in possible_files:
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os.unlink(file)
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# return recommendations
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self.video_cache[id] = result
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return result
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except youtube_dl.DownloadError:
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@ -224,6 +263,50 @@ class Second(object):
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"identifier": "VIDEO_DOES_NOT_EXIST"
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}
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@cherrypy.expose
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@cherrypy.tools.encode()
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def manifest(self, id):
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id = id.split(".")[0] # remove extension if present
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video = self.videos(id)
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if "error" in video:
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return video
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adaptation_sets_dict = {}
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for f in video["adaptiveFormats"]:
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mime = f["second__mime"]
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if not mime in adaptation_sets_dict:
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adaptation_sets_dict[mime] = []
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ads = adaptation_sets_dict[mime]
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representation_attributes = {"id": f["itag"], "codecs": ", ".join(f["second__codecs"]), "bandwidth": f["bitrate"]}
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if f["second__width"]:
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representation_attributes["width"] = str(f["second__width"])
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representation_attributes["height"] = str(f["second__height"])
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representation_attributes["startWithSAP"] = "1"
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representation_attributes["maxPlayoutRate"] = "1"
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representation_attributes["frameRate"] = str(f["fps"])
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representation = ET.Element("Representation", representation_attributes)
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if f["second__audioChannels"]:
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ET.SubElement(representation, "AudioChannelConfiguration", {"schemeIdUri": "urn:mpeg:dash:23003:3:audio_channel_configuration:2011", "value": str(f["second__audioChannels"])})
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ET.SubElement(representation, "BaseURL").text = f["url"]
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et_segment_base = ET.SubElement(representation, "SegmentBase", {"indexRange": f["index"]})
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ET.SubElement(et_segment_base, "Initialization", {"range": f["init"]})
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ads.append(representation)
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s_meta = B'<?xml version="1.0" encoding="UTF-8"?>'
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et_mpd = ET.Element("MPD", {"xmlns": "urn:mpeg:dash:schema:mpd:2011", "profiles": "urn:mpeg:dash:profile:full:2011", "minBufferTime": "PT1.5S", "type": "static", "mediaPresentationDuration": "PT282S"})
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et_period = ET.SubElement(et_mpd, "Period")
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for (index, key) in list(enumerate(adaptation_sets_dict)):
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ads = adaptation_sets_dict[key]
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et_adaptation_set = ET.SubElement(et_period, "AdaptationSet", {"id": str(index), "mimeType": key, "startWithSAP": "1", "subsegmentAlignment": "true"})
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for representation in ads:
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et_adaptation_set.append(representation)
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manifest = s_meta + ET.tostring(et_mpd)
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cherrypy.response.headers["content-type"] = "application/dash+xml"
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return manifest
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@cherrypy.expose
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@cherrypy.tools.json_out()
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def channels(self, *suffix):
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@ -290,7 +373,7 @@ class Second(object):
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@cherrypy.expose
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@cherrypy.tools.json_out()
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def search(self, *, q, sort_by):
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def search(self, *, q, sort_by, page, date, duration, type):
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info = ytdl.extract_info("ytsearchall:{}".format(q), download=False)
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return list({
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"type": "video",
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@ -1,2 +1,3 @@
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cherrypy
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youtube-dl
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cachetools
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