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cmdutils: Filter dst/srcw/h
Dimensions / pixel formats for scaling must be set through the -s / pix_fmt options or the scale / format filters. Otherwise there are mismatches between whet is in/output to the scaler and for what the scaler is configured Fixes Ticket4856 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -563,6 +563,12 @@ int opt_default(void *optctx, const char *opt, const char *arg)
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struct SwsContext *sws = sws_alloc_context();
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int ret = av_opt_set(sws, opt, arg, 0);
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sws_freeContext(sws);
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if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
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!strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
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!strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
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av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
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return AVERROR(EINVAL);
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}
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if (ret < 0) {
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av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
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return ret;
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