[FFmpeg-cvslog] lavc/videotoolboxenc: make transfer_fnc initialized for unsupport function

[Limin Wang]

ffmpeg | branch: master | Limin Wang <lance.lmwang at gmail.com> | Thu Jul 18 06:59:35 2019 +0800| [1ee863a7b05aaf358c43c3a788e020cc1c752c59] | committer: Rick Kern

lavc/videotoolboxenc: make transfer_fnc initialized for unsupport function

The current function will report one error message, but the caller func
haven't check it, so change the default to process as AVCOL_TRC_UNSPECIFIED.

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
Signed-off-by: Rick Kern <kernrj at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1ee863a7b05aaf358c43c3a788e020cc1c752c59
---

 libavcodec/videotoolboxenc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c
index ece9d6ea8f..d76bb7f646 100644
--- a/libavcodec/videotoolboxenc.c
+++ b/libavcodec/videotoolboxenc.c
@@ -949,6 +949,7 @@ static int get_cv_transfer_function(AVCodecContext *avctx,
             break;
 
         default:
+            *transfer_fnc = NULL;
             av_log(avctx, AV_LOG_ERROR, "Transfer function %s is not supported.\n", av_color_transfer_name(trc));
             return -1;
     }