avcodec/options_table: disable CRC checking by default

3 runs each of fate-suite/hevc-conformance/ENTP_C_LG_3.bit

with crc flag
1841819858 decicycles in frame decode, 32 runs, 0 skips
1833937180 decicycles in frame decode, 32 runs, 0 skips
1843283884 decicycles in frame decode, 32 runs, 0 skips

without crc flag
1703897301 decicycles in frame decode, 32 runs, 0 skips
1695031879 decicycles in frame decode, 32 runs, 0 skips
1697524383 decicycles in frame decode, 32 runs, 0 skips
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/options_table.h

@@ -144,7 +144,7 @@ static const AVOption avcodec_options[] = {
 {"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
 {"experimental", "allow non-standardized experimental things", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
 {"b_qoffset", "QP offset between P- and B-frames", OFFSET(b_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
-{"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
 {"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
 {"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
 {"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, A|V|D, "err_detect"},