diff --git a/libavformat/mux.c b/libavformat/mux.c
index 039d992e8c..01dcb362ae 100644
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@@ -893,13 +893,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
     for (i = 0; i < st->internal->nb_bsfcs; i++) {
         AVBSFContext *ctx = st->internal->bsfcs[i];
-        if (i > 0) {
-            AVBSFContext* prev_ctx = st->internal->bsfcs[i - 1];
-            if (prev_ctx->par_out->extradata_size != ctx->par_in->extradata_size) {
-                if ((ret = avcodec_parameters_copy(ctx->par_in, prev_ctx->par_out)) < 0)
-                    return ret;
-            }
-        }
         // TODO: when any bitstream filter requires flushing at EOF, we'll need to
         // flush each stream's BSF chain on write_trailer.
         if ((ret = av_bsf_send_packet(ctx, pkt)) < 0) {
@@ -919,12 +912,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
                     ctx->filter->name, pkt->stream_index);
             return ret;
         }
-        if (i == st->internal->nb_bsfcs - 1) {
-            if (ctx->par_out->extradata_size != st->codecpar->extradata_size) {
-                if ((ret = avcodec_parameters_copy(st->codecpar, ctx->par_out)) < 0)
-                    return ret;
-            }
-        }
     }
     return 1;
 }