From 0dc71915ae5b5abee6b40154e8fd07c4057e7bd4 Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ao2@ao2.it>
Date: Wed, 28 Feb 2018 17:09:46 +0100
Subject: [PATCH 1/1] am7xxx-play: add a comment to explain why a run-time
 warning can be ignored

Using the AV_PIX_FMT_YUVJ420P pixel format results n a run-time warning
from swscaler:

[swscaler @ 0x5600046b3cc0] deprecated pixel format used, make sure you did set range correctly

However this cannot be changed because the mjpeg codec relies on it,
otherwise it fails with the following error message:

[mjpeg @ 0x560eea5f5360] Specified pixel format yuv420p is invalid or not supported

So just add a comment, to avoid loosing time figuring things out again
in the future.
---
 examples/am7xxx-play.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c
index e3ceb5c..5dab320 100644
--- a/examples/am7xxx-play.c
+++ b/examples/am7xxx-play.c
@@ -211,6 +211,7 @@ static int video_output_init(struct video_output_ctx *output_ctx,
 		goto out;
 	}
 
+	/* YUVJ420P is deprecated in swscaler, but mjpeg still relies on it. */
 	output_codec_ctx->pix_fmt    = AV_PIX_FMT_YUVJ420P;
 	output_codec_ctx->codec_id   = AV_CODEC_ID_MJPEG;
 	output_codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO;
-- 
2.1.4