nvenc: Generate AUD NAL units for better compatiblity

Signed-off-by: NAnton Khirnov <anton@khirnov.net>

libavcodec/nvenc.c

@@ -586,6 +586,7 @@ static int nvenc_setup_h264_config(AVCodecContext *avctx)
 
     h264->disableSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
     h264->repeatSPSPPS  = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1;
+    h264->outputAUD     = 1;
 
     h264->maxNumRefFrames = avctx->refs;
     h264->idrPeriod       = cc->gopLength;
@@ -629,6 +630,7 @@ static int nvenc_setup_hevc_config(AVCodecContext *avctx)
 
     hevc->disableSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
     hevc->repeatSPSPPS  = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1;
+    hevc->outputAUD     = 1;
 
     hevc->maxNumRefFramesInDPB = avctx->refs;
     hevc->idrPeriod            = cc->gopLength;