From b568d6d94bda607e4ebb35be68181a8c2a9f5c50 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date: Sat, 26 Mar 2011 15:26:45 +0100
Subject: [PATCH] ffmpeg: warns the user when the selected pixel format is
 ignored

Signed-off-by: Anton Khirnov <anton@khirnov.net>
---
 ffmpeg.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/ffmpeg.c b/ffmpeg.c
index 74cfd095d0..612a413077 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -590,8 +590,15 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
             if(*p == st->codec->pix_fmt)
                 break;
         }
-        if(*p == -1)
+        if (*p == -1) {
+            if(st->codec->pix_fmt != PIX_FMT_NONE)
+                av_log(NULL, AV_LOG_WARNING,
+                        "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
+                        av_pix_fmt_descriptors[st->codec->pix_fmt].name,
+                        codec->name,
+                        av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
             st->codec->pix_fmt = codec->pix_fmts[0];
+        }
     }
 }