diff --git a/libavcodec/h274.h b/libavcodec/h274.h
index 920f6991fb..cebc8becb3 100644
--- a/libavcodec/h274.h
+++ b/libavcodec/h274.h
@@ -40,11 +40,26 @@ typedef struct H274FilmGrainDatabase {
     int16_t slice_tmp[64][64];
 } H274FilmGrainDatabase;
 
+/**
+ * Check whether ff_h274_apply_film_grain() supports the given parameter combination.
+ *
+ * @param model_id model_id from AVFilmGrainParams to be supplied
+ * @param pix_fmt  pixel format of the frames to be supplied
+ */
+static inline int ff_h274_film_grain_params_supported(int model_id, enum AVPixelFormat pix_fmt)
+{
+    return model_id == 0 && pix_fmt == AV_PIX_FMT_YUV420P;
+}
+
 // Synthesizes film grain on top of `in` and stores the result to `out`. `out`
 // must already have been allocated and set to the same size and format as
 // `in`.
 //
 // Returns a negative error code on error, such as invalid params.
+// If ff_h274_film_grain_params_supported() indicated that the parameters
+// are supported, no error will be returned if the arguments given to
+// ff_h274_film_grain_params_supported() coincide with actual values
+// from the frames and params.
 int ff_h274_apply_film_grain(AVFrame *out, const AVFrame *in,
                              H274FilmGrainDatabase *db,
                              const AVFilmGrainParams *params);
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index 81b9c5e089..2be62ddfb2 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -2884,6 +2884,14 @@ static int hevc_frame_start(HEVCContext *s)
         !(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) &&
         !s->avctx->hwaccel;
 
+    if (s->ref->needs_fg &&
+        !ff_h274_film_grain_params_supported(s->sei.common.film_grain_characteristics.model_id,
+                                             s->ref->frame->format)) {
+        av_log_once(s->avctx, AV_LOG_WARNING, AV_LOG_DEBUG, &s->film_grain_warning_shown,
+                    "Unsupported film grain parameters. Ignoring film grain.\n");
+        s->ref->needs_fg = 0;
+    }
+
     if (s->ref->needs_fg) {
         s->ref->frame_grain->format = s->ref->frame->format;
         s->ref->frame_grain->width = s->ref->frame->width;
@@ -2922,19 +2930,14 @@ static int hevc_frame_end(HEVCContext *s)
 {
     HEVCFrame *out = s->ref;
     const AVFrameSideData *sd;
-    int ret;
+    av_unused int ret;
 
     if (out->needs_fg) {
         sd = av_frame_get_side_data(out->frame, AV_FRAME_DATA_FILM_GRAIN_PARAMS);
         av_assert0(out->frame_grain->buf[0] && sd);
         ret = ff_h274_apply_film_grain(out->frame_grain, out->frame, &s->h274db,
                                        (AVFilmGrainParams *) sd->data);
-
-        if (ret < 0) {
-            av_log(s->avctx, AV_LOG_WARNING, "Failed synthesizing film "
-                   "grain, ignoring: %s\n", av_err2str(ret));
-            out->needs_fg = 0;
-        }
+        av_assert1(ret >= 0);
     }
 
     return 0;
@@ -3574,6 +3577,8 @@ static int hevc_update_thread_context(AVCodecContext *dst,
     s->threads_number      = s0->threads_number;
     s->threads_type        = s0->threads_type;
 
+    s->film_grain_warning_shown = s0->film_grain_warning_shown;
+
     if (s0->eos) {
         s->seq_decode = (s->seq_decode + 1) & HEVC_SEQUENCE_COUNTER_MASK;
         s->max_ra = INT_MAX;
diff --git a/libavcodec/hevcdec.h b/libavcodec/hevcdec.h
index 94609e4699..9b232df68c 100644
--- a/libavcodec/hevcdec.h
+++ b/libavcodec/hevcdec.h
@@ -596,6 +596,8 @@ typedef struct HEVCContext {
     int nal_length_size;    ///< Number of bytes used for nal length (1, 2 or 4)
     int nuh_layer_id;
 
+    int film_grain_warning_shown;
+
     AVBufferRef *rpu_buf;       ///< 0 or 1 Dolby Vision RPUs.
     DOVIContext dovi_ctx;       ///< Dolby Vision decoding context
 } HEVCContext;