contrib: aom: update to 3.3.0

2022-01-28 v3.3.0
  This release includes compression efficiency and perceptual quality
  improvements, speedup and memory optimizations, some new features, and
  several bug fixes.
  - New Features
    * AV1 RT: Introducing CDEF search level 5
    * Changed real time speed 4 to behave the same as real time speed 5
    * Add --deltaq-strength
    * rtc: Allow scene-change and overshoot detection for svc
    * rtc: Intra-only frame for svc
    * AV1 RT: Option 2 for codec control AV1E_SET_ENABLE_CDEF to disable
      CDEF on non-ref frames
    * New codec controls AV1E_SET_LOOPFILTER_CONTROL and
      AOME_GET_LOOPFILTER_LEVEL
    * Improvements to three pass encoding
  - Compression Efficiency Improvements
    * Overall compression gains: 0.6%
  - Perceptual Quality Improvements
    * Improves the perceptual quality of high QP encoding for delta-q mode 4
    * Auto select noise synthesis level for all intra
  - Speedup and Memory Optimizations
    * Added many SSE2 optimizations.
    * Good quality 2-pass encoder speedups:
      o Speed 2: 9%
      o Speed 3: 12.5%
      o Speed 4: 8%
      o Speed 5: 3%
      o Speed 6: 4%
    * Real time mode encoder speedups:
      o Speed 5: 2.6% BDRate gain, 4% speedup
      o Speed 6: 3.5% BDRate gain, 4% speedup
      o Speed 9: 1% BDRate gain, 3% speedup
      o Speed 10: 3% BDRate gain, neutral speedup
    * All intra encoding speedups (AVIF):
      o Single thread - speed 6: 8%
      o Single thread - speed 9: 15%
      o Multi thread(8) - speed 6: 14%
      o Multi thread(8) - speed 9: 34%
  - Bug Fixes
    * Issue 3163: Segmentation fault when using --enable-keyframe-filtering=2
    * Issue 2436: Integer overflow in av1_warp_affine_c()
    * Issue 3226: armv7 build failure due to gcc-11
    * Issue 3195: Bug report on libaom (AddressSanitizer: heap-buffer-overflow)
    * Issue 3191: Bug report on libaom (AddressSanitizer: SEGV on unknown
      address)
    * Issue 3176: Some SSE2/SADx4AvgTest.* tests fail on Windows
    * Issue 3175: Some SSE2/SADSkipTest.* tests fail on Windows

Source:
https://aomedia.googlesource.com/aom/+/refs/tags/v3.3.0/CHANGELOG



(cherry picked from commit 0857947a)
Signed-off-by: Tristan Matthews <tmatth@videolan.org>

contrib/src/aom/SHA512SUMS

+9bd118bf46d777da4e85f348fed95510ce583d16d005d062d33e2899f16f24bdb8b120792a7c77ccb64b4e1ff5b3d934342fb1b356bb426693ef69220f138c5f  libaom-3.3.0.tar.gz

contrib/src/aom/rules.mak

 # aom
-AOM_VERSION := v3.1.1
-AOM_GITURL := https://aomedia.googlesource.com/aom/+archive/$(AOM_VERSION).tar.gz
+AOM_VERSION := 3.3.0
+AOM_URL := https://storage.googleapis.com/aom-releases/libaom-$(AOM_VERSION).tar.gz
 
 PKGS += aom
 ifeq ($(call need_pkg,"aom"),)
 PKGS_FOUND += aom
 endif
 
-$(TARBALLS)/aom-$(AOM_VERSION).tar.gz:
-	$(call download_pkg,$(AOM_GITURL),aom)
+$(TARBALLS)/libaom-$(AOM_VERSION).tar.gz:
+	$(call download_pkg,$(AOM_URL),aom)
 
-.sum-aom: aom-$(AOM_VERSION).tar.gz
-	$(warning $@ not implemented)
-	touch $@
+.sum-aom: libaom-$(AOM_VERSION).tar.gz
 
-aom: aom-$(AOM_VERSION).tar.gz .sum-aom
-	rm -Rf $(UNPACK_DIR) $@
-	mkdir -p $(UNPACK_DIR)
-	tar xvzfo "$<" -C $(UNPACK_DIR)
+aom: libaom-$(AOM_VERSION).tar.gz .sum-aom
+	$(UNPACK)
 ifdef HAVE_ANDROID
 	$(APPLY) $(SRC)/aom/aom-android-pthreads.patch
 	$(APPLY) $(SRC)/aom/aom-android-cpufeatures.patch
@@ -40,12 +36,10 @@ AOM_CONF := \
 	-DENABLE_DOCS=OFF \
 	-DENABLE_EXAMPLES=OFF \
 	-DENABLE_TOOLS=OFF \
-	-DCONFIG_UNIT_TESTS=0 \
-	-DENABLE_TESTS=OFF \
-	-DCONFIG_INSTALL_BINS=0 \
-	-DCONFIG_INSTALL_DOCS=0 \
-	-DCONFIG_DEPENDENCY_TRACKING=0 \
-	-DCONFIG_AV1_ENCODER=0
+	-DENABLE_TESTS=OFF
+
+# The aom module only supports decoding in 3.0.x
+AOM_CONF += -DCONFIG_AV1_ENCODER=0
 
 ifndef HAVE_WIN32
 AOM_CONF += -DCONFIG_PIC=1