oss_pre_select(): Fix check for empty infput buffer.

We must take into account the number of bytes already written, and we can not write less
than a single frame.

diff --git a/oss_write.c b/oss_write.c
index 6a55005ec8247a46c424ebabe9308e03f03c1d24..d8b571b68d2865b261646a5276dc1d08471c5b61 100644 (file)
--- a/oss_write.c
+++ b/oss_write.c
@@ -47,7 +47,7 @@ static int oss_pre_select(struct sched *s, struct writer_node *wn)
        struct private_oss_write_data *powd = wn->private_data;
        struct writer_node_group *wng = wn->wng;
 
-       if (!*wng->loaded)
+       if (*wng->loaded - wn->written < powd->bytes_per_frame)
                return 0;
        para_fd_set(powd->fd, &s->wfds, &s->max_fileno);
        return 1;