From b295e94cc8ae06e5084bb758c8d26b750b8e9757 Mon Sep 17 00:00:00 2001
From: Urban Wallasch <urban.wallasch@freenet.de>
Date: Mon, 31 May 2021 13:29:34 +0200
Subject: [PATCH] * Added alternative method for counting subtitle streams
 using ffmpeg should ffprobe fail.

---
 ffpreview.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/ffpreview.py b/ffpreview.py
index b889c1c..edf6a59 100755
--- a/ffpreview.py
+++ b/ffpreview.py
@@ -1872,6 +1872,16 @@ def get_meta(vidfile):
     if rc == 0:
         meta['nsubs'] = len(out.splitlines())
         eprint(1, 'number of subtitle streams:', meta['nsubs'])
+    else: # ffprobe failed, try using ffmpeg
+        cmd = [cfg['ffmpeg'], '-i', vidfile]
+        out, err, rc = proc_cmd(cmd)
+        nsubs = 0
+        for line in io.StringIO(err).readlines():
+            if re.match(r'\s*Stream #.*: Subtitle:', line):
+                nsubs += 1
+        if nsubs > 0:
+            meta['nsubs'] = nsubs
+            eprint(1, 'number of subtitle streams:', meta['nsubs'])
     # get frames / duration / fps
     # try ffprobe fast method
     cmd = [cfg['ffprobe'], '-v', 'error', '-select_streams', 'v:0',
-- 
2.30.2