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];
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);
+
+ av_strerror(ret, errbuf, sizeof(errbuf));
+
+ snprintf(error, error_len,
+ "Error while opening decoder for input stream "
+ "#%d:%d : %s",
+ ist->file_index, ist->st->index, errbuf);
return ret;
}
assert_avoptions(ist->opts);