fate: Add --ignore-tests configure option for omitting specific FATE tests

This can be useful to filter out noise in known-broken scenarios like
miscompilation by legacy compilers and similar.

Originally based on a patch by Diego Biurrun.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

configure

@@ -348,6 +348,8 @@ Developer options (useful when working on Libav itself):
   --random-seed=VALUE      seed value for --enable/disable-random
   --disable-valgrind-backtrace do not print a backtrace under Valgrind
                            (only applies to --disable-optimizations builds)
+  --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
+                           in the name) of tests whose result is ignored
 
 NOTE: Object files are built at the place where configure is launched.
 EOF
@@ -1815,6 +1817,7 @@ CMDLINE_SET="
     host_ld
     host_ldflags
     host_os
+    ignore_tests
     ld
     logfile
     malloc_prefix
@@ -5192,6 +5195,13 @@ for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf ind
     echo
 done
 
+if test -n "$ignore_tests"; then
+    ignore_tests=$(echo $ignore_tests | tr ',' ' ')
+    echo "Ignored FATE tests:"
+    echo $ignore_tests | print_3_columns
+    echo
+fi
+
 license="LGPL version 2.1 or later"
 if enabled nonfree; then
     license="nonfree and unredistributable"
@@ -5316,6 +5326,7 @@ SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
+IGNORE_TESTS=$ignore_tests
 EOF
 
 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> avbuild/config.mak' $LIBRARY_LIST

doc/fate.texi

@@ -139,6 +139,7 @@ workdir=                                # directory in which to do all the work
 fate_recv="ssh -T fate@@fate.libav.org"  # command to submit report
 comment=                                # optional description
 build_only=     # set to "yes" for a compile-only instance that skips tests
+ignore_tests=
 
 # the following are optional and map to configure options
 arch=

tests/Makefile

@@ -143,11 +143,13 @@ endif
 
 FATE_UTILS = base64 tiny_psnr
 
+$(addprefix fate-, $(IGNORE_TESTS)): REPORT=ignore
+
 fate: $(FATE)
 
 $(FATE): $(FATE_UTILS:%=tests/%$(HOSTEXESUF))
 	@echo "TEST    $(@:fate-%=%)"
-	$(Q)$(SRC_PATH)/tests/fate-run.sh $@ "$(SAMPLES)" "$(TARGET_EXEC)" "$(TARGET_PATH)" '$(CMD)' '$(CMP)' '$(REF)' '$(FUZZ)' '$(THREADS)' '$(THREAD_TYPE)' '$(CPUFLAGS)' '$(CMP_SHIFT)' '$(CMP_TARGET)' '$(SIZE_TOLERANCE)' '$(CMP_UNIT)' '$(GEN)' '$(HWACCEL)'
+	$(Q)$(SRC_PATH)/tests/fate-run.sh $@ "$(SAMPLES)" "$(TARGET_EXEC)" "$(TARGET_PATH)" '$(CMD)' '$(CMP)' '$(REF)' '$(FUZZ)' '$(THREADS)' '$(THREAD_TYPE)' '$(CPUFLAGS)' '$(CMP_SHIFT)' '$(CMP_TARGET)' '$(SIZE_TOLERANCE)' '$(CMP_UNIT)' '$(GEN)' '$(HWACCEL)' '$(REPORT)'
 
 fate-list:
 	@printf '%s\n' $(sort $(FATE))

tests/fate-run.sh

@@ -24,6 +24,7 @@ size_tolerance=${14:-0}
 cmp_unit=${15:-2}
 gen=${16:-no}
 hwaccel=${17:-none}
+report_type=${18:-standard}
 
 outdir="tests/data/fate"
 outfile="${outdir}/${test}"
@@ -212,13 +213,17 @@ if test -e "$ref" || test $cmp = "oneline" ; then
     esac
     cmperr=$?
     test $err = 0 && err=$cmperr
+    if [ "$report_type" = "ignore" ]; then
+        test $err = 0 || echo "IGNORE  fate-${test}" && err=0
+    else
         test $err = 0 || cat $cmpfile
+    fi
 else
     echo "reference file '$ref' not found"
     err=1
 fi
 
-if [ $err -eq 0 ]; then
+if [ $err -eq 0 ] && test $report_type = "standard" ; then
     unset cmpo erro
 else
     cmpo="$($base64 <$cmpfile)"

tests/fate.sh

@@ -47,6 +47,7 @@ configure()(
         --prefix="${inst}"                                              \
         --samples="${samples}"                                          \
         --enable-gpl                                                    \
+        ${ignore_tests:+--ignore-tests="$ignore_tests"}                 \
         ${arch:+--arch=$arch}                                           \
         ${cpu:+--cpu="$cpu"}                                            \
         ${toolchain:+--toolchain="$toolchain"}                          \