Let `read_stdin` obey `--quiet`

Closes #8668

yt_dlp/__init__.py

@@ -73,14 +73,16 @@ def _exit(status=0, *args):
 
 
 def get_urls(urls, batchfile, verbose):
-    # Batch file verification
+    """
+    @param verbose      -1: quiet, 0: normal, 1: verbose
+    """
     batch_urls = []
     if batchfile is not None:
         try:
             batch_urls = read_batch_urls(
-                read_stdin('URLs') if batchfile == '-'
+                read_stdin(None if verbose == -1 else 'URLs') if batchfile == '-'
                 else open(expand_path(batchfile), encoding='utf-8', errors='ignore'))
-            if verbose:
+            if verbose == 1:
                 write_string('[debug] Batch file urls: ' + repr(batch_urls) + '\n')
         except OSError:
             _exit(f'ERROR: batch file {batchfile} could not be read')
@@ -721,7 +723,7 @@ ParsedOptions = collections.namedtuple('ParsedOptions', ('parser', 'options', 'u
 def parse_options(argv=None):
     """@returns ParsedOptions(parser, opts, urls, ydl_opts)"""
     parser, opts, urls = parseOpts(argv)
-    urls = get_urls(urls, opts.batchfile, opts.verbose)
+    urls = get_urls(urls, opts.batchfile, -1 if opts.quiet and not opts.verbose else opts.verbose)
 
     set_compat_opts(opts)
     try:

yt_dlp/utils/_utils.py

@@ -4789,8 +4789,9 @@ def parse_http_range(range):
 
 
 def read_stdin(what):
-    eof = 'Ctrl+Z' if compat_os_name == 'nt' else 'Ctrl+D'
-    write_string(f'Reading {what} from STDIN - EOF ({eof}) to end:\n')
+    if what:
+        eof = 'Ctrl+Z' if compat_os_name == 'nt' else 'Ctrl+D'
+        write_string(f'Reading {what} from STDIN - EOF ({eof}) to end:\n')
     return sys.stdin