Merge commit '3f5c99fcbb2c366d7bdef8500c19f43a33bdb6b9'

* commit '3f5c99fcbb2c366d7bdef8500c19f43a33bdb6b9':
  mpegvideo_enc: export CPB props side data

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

libavcodec/mpegvideo_enc.c

@@ -286,6 +286,7 @@ av_cold int ff_dct_encode_init(MpegEncContext *s) {
 av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
+    AVCPBProperties *cpb_props;
     int i, ret, format_supported;
 
     mpv_encode_defaults(s);
@@ -1036,6 +1037,14 @@ FF_ENABLE_DEPRECATION_WARNINGS
         }
     }
 
+    cpb_props = ff_add_cpb_side_data(avctx);
+    if (!cpb_props)
+        return AVERROR(ENOMEM);
+    cpb_props->max_bitrate = avctx->rc_max_rate;
+    cpb_props->min_bitrate = avctx->rc_min_rate;
+    cpb_props->avg_bitrate = avctx->bit_rate;
+    cpb_props->buffer_size = avctx->rc_buffer_size;
+
     return 0;
 fail:
     ff_mpv_encode_end(avctx);