[extractor/generic] Add fragment_query extractor arg for DASH and HLS (#5528)

* `fragment_query`: passthrough any query in generic mpd/m3u8 manifest URLs to their fragments
* Add support for `extra_param_to_segment_url` to DASH downloader
Authored by: bashonly, pukkandan

yt_dlp/downloader/dash.py

@@ -1,8 +1,9 @@
 import time
+import urllib.parse
 
 from . import get_suitable_downloader
 from .fragment import FragmentFD
-from ..utils import urljoin
+from ..utils import update_url_query, urljoin
 
 
 class DashSegmentsFD(FragmentFD):
@@ -40,7 +41,12 @@ class DashSegmentsFD(FragmentFD):
                 self._prepare_and_start_frag_download(ctx, fmt)
             ctx['start'] = real_start
 
-            fragments_to_download = self._get_fragments(fmt, ctx)
+            extra_query = None
+            extra_param_to_segment_url = info_dict.get('extra_param_to_segment_url')
+            if extra_param_to_segment_url:
+                extra_query = urllib.parse.parse_qs(extra_param_to_segment_url)
+
+            fragments_to_download = self._get_fragments(fmt, ctx, extra_query)
 
             if real_downloader:
                 self.to_screen(
@@ -57,7 +63,7 @@ class DashSegmentsFD(FragmentFD):
         fragments = fragments(ctx) if callable(fragments) else fragments
         return [next(iter(fragments))] if self.params.get('test') else fragments
 
-    def _get_fragments(self, fmt, ctx):
+    def _get_fragments(self, fmt, ctx, extra_query):
         fragment_base_url = fmt.get('fragment_base_url')
         fragments = self._resolve_fragments(fmt['fragments'], ctx)
 
@@ -70,6 +76,8 @@ class DashSegmentsFD(FragmentFD):
             if not fragment_url:
                 assert fragment_base_url
                 fragment_url = urljoin(fragment_base_url, fragment['path'])
+            if extra_query:
+                fragment_url = update_url_query(fragment_url, extra_query)
 
             yield {
                 'frag_index': frag_index,