validate min_q against max_q

min_q is required to be <= max_q.

Change-Id: I28eccf96df3b52a94913762b54c4fbe0d021ce5e

vp8/vp8_cx_iface.c

@@ -142,8 +142,8 @@ static vpx_codec_err_t validate_config(vpx_codec_alg_priv_t      *ctx,
     RANGE_CHECK(cfg, g_timebase.den,        1, 1000000000);
     RANGE_CHECK(cfg, g_timebase.num,        1, cfg->g_timebase.den);
     RANGE_CHECK_HI(cfg, g_profile,          3);
-    RANGE_CHECK_HI(cfg, rc_min_quantizer,   63);
     RANGE_CHECK_HI(cfg, rc_max_quantizer,   63);
+    RANGE_CHECK_HI(cfg, rc_min_quantizer,   cfg->rc_max_quantizer);
     RANGE_CHECK_HI(cfg, g_threads,          64);
 #if !(CONFIG_REALTIME_ONLY)
     RANGE_CHECK_HI(cfg, g_lag_in_frames,    25);