From c74a5d870d1edcc471d12ddefc57d8b0b0549a68 Mon Sep 17 00:00:00 2001
From: Song Bing <bing.song@nxp.com>
Date: Mon, 15 Apr 2019 16:32:03 -0700
Subject: [PATCH] v4l2transform: set right buffer count.

Set right buffer count to avoid one buffer.
---
 sys/v4l2/gstv4l2transform.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sys/v4l2/gstv4l2transform.c b/sys/v4l2/gstv4l2transform.c
index 6bb7feeb13..e2adc63df1 100644
--- a/sys/v4l2/gstv4l2transform.c
+++ b/sys/v4l2/gstv4l2transform.c
@@ -893,8 +893,7 @@ gst_v4l2_transform_prepare_output_buffer (GstBaseTransform * trans,
   /* Ensure input internal pool is active */
   if (!gst_buffer_pool_is_active (pool)) {
     GstStructure *config = gst_buffer_pool_get_config (pool);
-    gint min = self->v4l2output->min_buffers == 0 ? GST_V4L2_MIN_BUFFERS :
-        self->v4l2output->min_buffers;
+    gint min = MAX (GST_V4L2_MIN_BUFFERS, self->v4l2output->min_buffers);
     gst_buffer_pool_config_set_params (config, self->incaps,
         self->v4l2output->info.size, min, min);