struct SwsContext *sws = sws_alloc_context();
int ret = av_opt_set(sws, opt, arg, 0);
sws_freeContext(sws);
+ if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
+ !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
+ !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
+ av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
+ return AVERROR(EINVAL);
+ }
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
return ret;