[FFmpeg-cvslog] smoothstreamingenc: Add a more verbose error message

[Martin Storsjö]

ffmpeg | branch: master | Martin Storsjö <martin at martin.st> | Sat Oct  6 02:39:21 2012 +0300| [cde26748aede7226aab07923f183c2e3ba30985f] | committer: Martin Storsjö

smoothstreamingenc: Add a more verbose error message

This helps tracking down the cause if this happens to be an issue.

Signed-off-by: Martin Storsjö <martin at martin.st>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cde26748aede7226aab07923f183c2e3ba30985f
---

 libavformat/smoothstreamingenc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/smoothstreamingenc.c b/libavformat/smoothstreamingenc.c
index a8af711..69d555f 100644
--- a/libavformat/smoothstreamingenc.c
+++ b/libavformat/smoothstreamingenc.c
@@ -216,8 +216,10 @@ static int write_manifest(AVFormatContext *s, int final)
 
     snprintf(filename, sizeof(filename), "%s/Manifest", s->filename);
     ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
-    if (ret < 0)
+    if (ret < 0) {
+        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", filename);
         return ret;
+    }
     avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
     for (i = 0; i < s->nb_streams; i++) {
         OutputStream *os = &c->streams[i];