External codec may have corner case reason to fail at init, better
report them instead having the user wonder.
---
This helped a lot debugging why the QSV failed to init when running
avconv through ssh on windows (yes I do such stuff).
avconv.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/avconv.c b/avconv.c
index 4808235..8ef1495 100644
--- a/avconv.c
+++ b/avconv.c
@@ -1371,10 +1371,16 @@ static int init_input_stream(int ist_index, char
*error, int error_len)
if (!av_dict_get(ist->opts, "threads", NULL, 0))
av_dict_set(&ist->opts, "threads", "auto", 0);
if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
+ char errbuf[128];
+ const char *errbuf_ptr = errbuf;
if (ret == AVERROR_EXPERIMENTAL)
abort_codec_experimental(codec, 0);
- snprintf(error, error_len, "Error while opening decoder for input
stream #%d:%d",
- ist->file_index, ist->st->index);
+ if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
+ errbuf_ptr = strerror(AVUNERROR(ret));
+
+ snprintf(error, error_len,
+ "Error while opening decoder for input stream #%d:%d :
%s",
+ ist->file_index, ist->st->index, errbuf_ptr);
return ret;
}
assert_avoptions(ist->opts);
--
1.8.2.1
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