From 53d903f67d5ca255d302e7e93aceb45de59c3410 Mon Sep 17 00:00:00 2001
From: Rafael Moraes <50295204+glomatico@users.noreply.github.com>
Date: Sun, 22 Mar 2026 13:22:25 -0300
Subject: [PATCH] Build Widevine PSSH from file_id

---
 votify/interface/audio.py | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/votify/interface/audio.py b/votify/interface/audio.py
index d0cf765..31d5668 100644
--- a/votify/interface/audio.py
+++ b/votify/interface/audio.py
@@ -1,5 +1,7 @@
 import logging
 
+from pywidevine.license_protocol_pb2 import WidevinePsshData
+
 from .base import SpotifyBaseInterface
 from .enums import AudioQuality
 from .exceptions import VotifyMediaFormatNotAvailableException
@@ -140,9 +142,11 @@ class SpotifyAudioInterface(SpotifyBaseInterface):
         self,
         file_id: str,
     ) -> str:
-        seek_table_response = await self.api.get_seek_table(file_id)
-        pssh = seek_table_response.get("pssh", seek_table_response.get("widevine_pssh"))
+        pssh_obj = WidevinePsshData()
+        pssh_obj.algorithm = WidevinePsshData.AESCTR
+        pssh_obj.key_ids.append(bytes.fromhex(file_id[:32]))
+        pssh_obj.provider = "spotify"
+        pssh_obj.content_id = bytes.fromhex(file_id)
+        pssh_obj.protection_scheme = 1667591779
 
-        logger.debug(f"Received PSSH: {pssh}")
-
-        return pssh
+        return pssh_obj.SerializeToString()