[FFmpeg-devel] [PATCH] cmdutils: limit length of file name in errors.

[Nicolas George]

Useful with the concat protocol where pseudo file names can
be very long.
Fix part of trac ticket #2801.

Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
---
 cmdutils.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/cmdutils.c b/cmdutils.c
index 6eb093d..1344480 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -996,11 +996,15 @@ int opt_opencl(void *optctx, const char *opt, const char *arg)
 void print_error(const char *filename, int err)
 {
     char errbuf[128];
-    const char *errbuf_ptr = errbuf;
+    const char *errbuf_ptr = errbuf, *ellipsis = "";
+    const int max_file_length = 512;
 
     if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
         errbuf_ptr = strerror(AVUNERROR(err));
-    av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
+    if (strlen(filename) > max_file_length)
+        ellipsis = "...";
+    av_log(NULL, AV_LOG_ERROR, "%-.*s%s: %s\n",
+           max_file_length, filename, ellipsis, errbuf_ptr);
 }
 
 static int warned_cfg = 0;
-- 
1.7.10.4