From 6ca6b8c5530e9c67c8deff067a9a004bb809c8de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Wed, 21 Aug 2024 11:05:11 +0300
Subject: [PATCH] avdemux: Never return 0 from read function

Instead return AVERROR_EOF. The read function must never ever return 0 according
to the documentation, and in practice this leads to infinite loops.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3369

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7496>
---
 subprojects/gst-libav/ext/libav/gstavprotocol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/subprojects/gst-libav/ext/libav/gstavprotocol.c b/subprojects/gst-libav/ext/libav/gstavprotocol.c
index e7c9e5c7c5..e211b63fdf 100644
--- a/subprojects/gst-libav/ext/libav/gstavprotocol.c
+++ b/subprojects/gst-libav/ext/libav/gstavprotocol.c
@@ -321,7 +321,7 @@ gst_ffmpeg_pipe_read (void *priv_data, uint8_t * buf, int size)
   }
   GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
 
-  return size;
+  return size > 0 ? size : AVERROR_EOF;
 }
 
 int