avcodec/videotoolboxenc: remove unused variable

Signed-off-by: Steven Liu <lq@onvideo.cn>

diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c
index f8ccdea52d609f69894b596577dc3dcce7c4fdb0..ff33c279c3aa6526d30107b0228d8c86185312b0 100644 (file)
--- a/libavcodec/videotoolboxenc.c
+++ b/libavcodec/videotoolboxenc.c
@@ -2400,8 +2400,6 @@ static int vtenc_populate_extradata(AVCodecContext   *avctx,
         goto pe_cleanup;
     }
 
-    unsigned pbuftype = CVPixelBufferGetPixelFormatType(pix_buf);
-
     time = CMTimeMake(0, avctx->time_base.den);
     status = VTCompressionSessionEncodeFrame(vtctx->session,
                                              pix_buf,