mirror of
https://git.sr.ht/~cadence/NewLeaf
synced 2024-11-14 20:17:29 +00:00
59 lines
2.5 KiB
Python
59 lines
2.5 KiB
Python
import requests
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import xml.etree.ElementTree as ET
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from extractors.video import extract_video
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def extract_manifest(id):
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id = id.split(".")[0] # remove extension if present
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video = extract_video(id)
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if "error" in video:
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return video
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if video["second__providedDashUrl"]:
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with requests.get(video["second__providedDashUrl"]) as r:
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r.raise_for_status()
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return r
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adaptation_sets_dict = {}
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for f in video["adaptiveFormats"]:
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if not f["index"] or not f["init"]: # video extraction was not complete
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return {
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"error": "Video extraction was not complete, not enough fields are available to generate manifest",
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"identifier": "VIDEO_EXTRACTION_NOT_COMPLETE_FOR_MANIFEST"
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}
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mime = f["second__mime"]
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if mime == "audio/m4a":
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mime = "audio/mp4"
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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.get("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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return manifest
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