how to get pssh from index.mpd?

[ningnong132]

https://cn2-cdn116.stm.trueid.net/svod/th_gn/wv/ASS202406300851/index.mpd?appid=trueid&type=svod&visitor=web&drm=wv3&uid=99642299&did=WWVZNi1nLXlhM2wwVEdzeG9neW1vR1NyM0dyZ1ZDRWI&sid=a22f13a247&rt=1769309408&maxrate=20000000&mxr=20000000&ds=86400&duration=86400&tk=pwNzT4LazcEH9BOavdSSH60somWmUO6awrESJWtq2H0

EME Logger is not work

[Obo]

I think you may generate one from the "cenc:default_KID" attributes in the mpd; use e.g. https://emarsden.github.io/pssh-box-wasm/generate/

[sesamap159]

You can convert Kid to Python yourself:

import base64

def get_pssh(kid_hex: str) -> str:
    # PSSH box header + 'pssh' + version/flags
    pssh = bytearray(b'\x00\x00\x00\x32pssh\x00\x00\x00\x00')

    # Widevine system ID
    pssh.extend(bytes.fromhex("edef8ba979d64acea3c827dcd51d21ed"))

    # KID count (1) + KID length (16)
    pssh.extend(b'\x00\x00\x00\x12\x12\x10')

    # KID (16 bytes)
    pssh.extend(bytes.fromhex(kid_hex))

    return base64.b64encode(pssh).decode("utf-8")


kid = input("Please input KID: ").strip().replace("-", "").replace(" ", "")
assert len(kid) == 32, "wrong KID length"

print("PSSH:", get_pssh(kid))

[ningnong132]

I think you may generate one from the "cenc:default_KID" attributes in the mpd; use e.g. https://emarsden.github.io/pssh-box-wasm/generate/

You can convert Kid to Python yourself:

import base64

def get_pssh(kid_hex: str) -> str:
    # PSSH box header + 'pssh' + version/flags
    pssh = bytearray(b'\x00\x00\x00\x32pssh\x00\x00\x00\x00')

    # Widevine system ID
    pssh.extend(bytes.fromhex("edef8ba979d64acea3c827dcd51d21ed"))

    # KID count (1) + KID length (16)
    pssh.extend(b'\x00\x00\x00\x12\x12\x10')

    # KID (16 bytes)
    pssh.extend(bytes.fromhex(kid_hex))

    return base64.b64encode(pssh).decode("utf-8")


kid = input("Please input KID: ").strip().replace("-", "").replace(" ", "")
assert len(kid) == 32, "wrong KID length"

print("PSSH:", get_pssh(kid))

Thank You