diff --git a/src/plumbing/transcoding.c b/src/plumbing/transcoding.c
index 6decde3..b4117e8 100644
--- a/src/plumbing/transcoding.c
+++ b/src/plumbing/transcoding.c
@@ -1035,6 +1035,7 @@ create_video_filter(video_stream_t *vs, transcoder_t *t,
 {
   AVFilterInOut *flt_inputs, *flt_outputs;
   AVFilter *flt_bufsrc, *flt_bufsink;
+  enum AVPixelFormat pix_fmts[] = { 0, AV_PIX_FMT_NONE };
   char opt[128];
   int err;
 
@@ -1088,6 +1089,15 @@ create_video_filter(video_stream_t *vs, transcoder_t *t,
     goto out_err;
   }
 
+  pix_fmts[0] = octx->pix_fmt;
+  err = av_opt_set_int_list(vs->flt_bufsinkctx, "pix_fmts", pix_fmts,
+                            AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);
+  if (err < 0) {
+    tvherror("transcode", "%08X: fltchain cannot set output pixfmt",
+             shortid(t));
+    goto out_err;
+  }
+
   flt_outputs->name = av_strdup("in");
   flt_outputs->filter_ctx = vs->flt_bufsrcctx;
   flt_outputs->pad_idx = 0;
@@ -1240,7 +1250,11 @@ transcoder_stream_video(transcoder_t *t, transcoder_stream_t *ts, th_pkt_t *pkt)
 
     switch (ts->ts_type) {
     case SCT_MPEG2VIDEO:
-      octx->pix_fmt        = AV_PIX_FMT_YUV420P;
+       if (!strcmp(ocodec->name, "nvenc") || !strcmp(ocodec->name, "mpeg2_qsv"))
+          octx->pix_fmt    = AV_PIX_FMT_NV12;
+      else
+          octx->pix_fmt    = AV_PIX_FMT_YUV420P;      octx->flags         |= CODEC_FLAG_GLOBAL_HEADER;
+
       octx->flags         |= CODEC_FLAG_GLOBAL_HEADER;
 
       if (t->t_props.tp_vbitrate < 64) {
@@ -1287,11 +1301,20 @@ transcoder_stream_video(transcoder_t *t, transcoder_stream_t *ts, th_pkt_t *pkt)
       break;
 
     case SCT_H264:
-      octx->pix_fmt        = AV_PIX_FMT_YUV420P;
+       if (!strcmp(ocodec->name, "nvenc") || !strcmp(ocodec->name, "h264_qsv"))
+          octx->pix_fmt    = AV_PIX_FMT_NV12;
+      else
+          octx->pix_fmt    = AV_PIX_FMT_YUV420P;
+
       octx->flags         |= CODEC_FLAG_GLOBAL_HEADER;
 
       // Default = "medium". We gain more encoding speed compared to the loss of quality when lowering it _slightly_.
-      av_dict_set(&opts, "preset",  "faster", 0);
+      if (!strcmp(ocodec->name, "nvenc"))
+         av_dict_set(&opts, "preset",  "hq", 0);
+      else if (!strcmp(ocodec->name, "h264_qsv"))
+         av_dict_set(&opts, "preset",  "medium", 0);
+      else
+         av_dict_set(&opts, "preset",  "faster", 0);
 
       // All modern devices should support "high" profile
       av_dict_set(&opts, "profile", "high", 0);