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-rw-r--r--yt_dlp/extractor/common.py9
1 files changed, 8 insertions, 1 deletions
diff --git a/yt_dlp/extractor/common.py b/yt_dlp/extractor/common.py
index 2799747ec..e5efd08b4 100644
--- a/yt_dlp/extractor/common.py
+++ b/yt_dlp/extractor/common.py
@@ -234,7 +234,14 @@ class InfoExtractor:
'maybe' if the format may have DRM and has to be tested before download.
* extra_param_to_segment_url A query string to append to each
fragment's URL, or to update each existing query string
- with. Only applied by the native HLS/DASH downloaders.
+ with. If it is an HLS stream with an AES-128 decryption key,
+ the query paramaters will be passed to the key URI as well,
+ unless there is an `extra_param_to_key_url` given,
+ or unless an external key URI is provided via `hls_aes`.
+ Only applied by the native HLS/DASH downloaders.
+ * extra_param_to_key_url A query string to append to the URL
+ of the format's HLS AES-128 decryption key.
+ Only applied by the native HLS downloader.
* hls_aes A dictionary of HLS AES-128 decryption information
used by the native HLS downloader to override the
values in the media playlist when an '#EXT-X-KEY' tag