- av_log(NULL, AV_LOG_WARNING, "Ignoring option '%s'\n", opt);
- return 0;
+ av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
+ "If you are looking for an option to preserve the quality (which is not "
+ "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
+ opt, opt);
+ return AVERROR(EINVAL);