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imSp4rky
59a7c76b2f
Regex-based UrlPattern substitution (handles {Bitrate}/{start_time} spellings), AudioTag/FourCC codec fallback, Width/Height fallbacks, integer fragment times, live-manifest and missing-language guards. Extract fps from the HEVC SPS VUI (HEVC-only; AVC timing untrusted).
44 lines
1.9 KiB
Python
44 lines
1.9 KiB
Python
import pytest
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from unshackle.core.manifests.ism import ISM
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from unshackle.core.tracks import Audio
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MANIFEST = """<?xml version="1.0"?>
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<SmoothStreamingMedia MajorVersion="2" MinorVersion="0" Duration="60000000" TimeScale="10000000">
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<StreamIndex Type="audio" Name="audio" Language="en"
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Url="QualityLevels({Bitrate})/Fragments(audio={start_time})">
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<QualityLevel Index="0" Bitrate="128000" AudioTag="255" SamplingRate="48000"
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Channels="2" BitsPerSample="16" CodecPrivateData="1190"/>
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<c t="0" d="20000000" r="2"/>
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<c/>
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</StreamIndex>
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</SmoothStreamingMedia>
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"""
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def test_placeholder_spellings_repeat_and_audiotag_fallback() -> None:
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tracks = ISM.from_text(MANIFEST, "https://cdn.example/x.ism/manifest").to_tracks()
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(audio,) = tracks.audio
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segments = audio.data["ism"]["segments"]
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assert segments == [
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"https://cdn.example/x.ism/QualityLevels(128000)/Fragments(audio=0)",
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"https://cdn.example/x.ism/QualityLevels(128000)/Fragments(audio=20000000)",
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"https://cdn.example/x.ism/QualityLevels(128000)/Fragments(audio=40000000)",
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]
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assert audio.codec == Audio.Codec.AAC # AudioTag 255 means AACL
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def test_missing_language_without_fallback_raises() -> None:
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# MS-SSTR Language is optional; video StreamIndexes commonly omit it.
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no_lang = MANIFEST.replace(' Language="en"', "")
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with pytest.raises(ValueError, match="fallback language"):
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ISM.from_text(no_lang, "https://cdn.example/x.ism/manifest").to_tracks()
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tracks = ISM.from_text(no_lang, "https://cdn.example/x.ism/manifest").to_tracks(language="en")
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assert str(tracks.audio[0].language) == "en"
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def test_live_manifest_rejected() -> None:
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live = MANIFEST.replace('Duration="60000000"', 'Duration="60000000" IsLive="TRUE"', 1)
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with pytest.raises(ValueError, match="Live"):
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ISM.from_text(live, "https://cdn.example/x.ism/manifest").to_tracks()
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