lavfi: fix filter format negotiation loop.

query_formats() returning EAGAIN is not considered a progress
in the format negotiation.

If the filter returns EAGAIN but did set some of its formats
lists, it could be considered a partial success and counted
as progress in the negotiation. Not counting it is not a
problem because it currently only happens in the first round,
where there will always be some progress on the other filters.
This commit is contained in:
Nicolas George 2013-05-06 13:46:23 +02:00
parent 449704b475
commit 78d16b6a51
1 changed files with 2 additions and 1 deletions

View File

@ -333,7 +333,8 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
ret = ff_default_query_formats(f);
if (ret < 0 && ret != AVERROR(EAGAIN))
return ret;
count_queried++;
/* note: EAGAIN could indicate a partial success, not counted yet */
count_queried += ret >= 0;
}
/* go through and merge as many format lists as possible */