lavf/segment: exit immediately in case of invalid stream specifier

Avoid duplicated confusing error message, and propagate error code from
the failing avformat_match_stream_specifier() call.

diff --git a/libavformat/segment.c b/libavformat/segment.c
index d58d9fe0b4605031b4357ad3774218100e06033a..7d7222922c21c4005f3df2f324390fcb8117d654 100644 (file)
--- a/libavformat/segment.c
+++ b/libavformat/segment.c
@@ -485,7 +485,7 @@ static int select_reference_stream(AVFormatContext *s)
             ret = avformat_match_stream_specifier(s, s->streams[i],
                                                   seg->reference_stream_specifier);
             if (ret < 0)
-                break;
+                return ret;
             if (ret > 0) {
                 seg->reference_stream_index = i;
                 break;