fftools/ffmpeg, ffplay: Don't set refcounted_frames

It only affects the old and deprecated avcodec_decode_(video2|audio4)
API which is no longer used here.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

fftools/ffmpeg.c

@@ -2957,7 +2957,6 @@ static int init_input_stream(int ist_index, char *error, int error_len)
         ist->dec_ctx->thread_safe_callbacks = 1;
 #endif
 
-        av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
         if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
            (ist->decoding_needed & DECODING_FOR_OST)) {
             av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);

fftools/ffplay.c

@@ -2628,8 +2628,6 @@ static int stream_component_open(VideoState *is, int stream_index)
         av_dict_set(&opts, "threads", "auto", 0);
     if (stream_lowres)
         av_dict_set_int(&opts, "lowres", stream_lowres, 0);
-    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
-        av_dict_set(&opts, "refcounted_frames", "1", 0);
     if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) {
         goto fail;
     }