Commit 5732ae0293 for ffmpeg

commit 5732ae029398d2876b6301db01def14e79d6b78a
Author: Michael Niedermayer <michael@niedermayer.cc>
Date:   Sat Oct 24 06:18:36 2026 +0200

    avcodec/null: declare support for parameter changes in the vnull encoder

    The encoder discards every frame, so the size and format of a frame do
    not matter to it.

diff --git a/libavcodec/null.c b/libavcodec/null.c
index e443ddf4f9..4191e5866e 100644
--- a/libavcodec/null.c
+++ b/libavcodec/null.c
@@ -70,6 +70,7 @@ const FFCodec ff_vnull_encoder = {
     CODEC_LONG_NAME("null video"),
     .p.type         = AVMEDIA_TYPE_VIDEO,
     .p.id           = AV_CODEC_ID_VNULL,
+    .p.capabilities = AV_CODEC_CAP_PARAM_CHANGE,
     FF_CODEC_ENCODE_CB(null_encode),
 };
 #endif