[ffmpeg] Framework for feature detection

Related: #1502, #1237, https://github.com/ytdl-org/youtube-dl/pull/29581

1 files changed, 10 insertions, 5 deletions

diff --git a/yt_dlp/utils.py b/yt_dlp/utils.py
index 62f83c9ce..55e452a15 100644
--- a/yt_dlp/utils.py
+++ b/yt_dlp/utils.py
@@ -4007,10 +4007,7 @@ def check_executable(exe, args=[]):
     return exe
 
 
-def get_exe_version(exe, args=['--version'],
-                    version_re=None, unrecognized='present'):
-    """ Returns the version of the specified executable,
-    or False if the executable is not present """
+def _get_exe_version_output(exe, args):
     try:
         # STDIN should be redirected too. On UNIX-like systems, ffmpeg triggers
         # SIGTTOU if yt-dlp is run in the background.
@@ -4022,7 +4019,7 @@ def get_exe_version(exe, args=['--version'],
         return False
     if isinstance(out, bytes):  # Python 2.x
         out = out.decode('ascii', 'ignore')
-    return detect_exe_version(out, version_re, unrecognized)
+    return out
 
 
 def detect_exe_version(output, version_re=None, unrecognized='present'):
@@ -4036,6 +4033,14 @@ def detect_exe_version(output, version_re=None, unrecognized='present'):
         return unrecognized
 
 
+def get_exe_version(exe, args=['--version'],
+                    version_re=None, unrecognized='present'):
+    """ Returns the version of the specified executable,
+    or False if the executable is not present """
+    out = _get_exe_version_output(exe, args)
+    return detect_exe_version(out, version_re, unrecognized) if out else False
+
+
 class LazyList(collections.abc.Sequence):
     ''' Lazy immutable list from an iterable
     Note that slices of a LazyList are lists and not LazyList'''