Update aom to slightly newer commit ID

15 files changed, 193 insertions, 227 deletions

diff --git a/third_party/aom/build/cmake/aom_config_defaults.cmake b/third_party/aom/build/cmake/aom_config_defaults.cmake
index 5c2bc5801..cd6b5ab48 100644
--- a/third_party/aom/build/cmake/aom_config_defaults.cmake
+++ b/third_party/aom/build/cmake/aom_config_defaults.cmake
@@ -20,7 +20,6 @@ set(ARCH_MIPS 0 CACHE BOOL "Enables MIPS architecture.")
 set(ARCH_X86 0 CACHE BOOL "Enables X86 architecture.")
 set(ARCH_X86_64 0 CACHE BOOL "Enables X86_64 architecture.")
 set(HAVE_EDSP 0 CACHE BOOL "Enables EDSP optimizations.")
-set(HAVE_MEDIA 0 CACHE BOOL "Enables MEDIA optimizations.")
 set(HAVE_NEON 0 CACHE BOOL "Enables NEON intrinsics optimizations.")
 set(HAVE_NEON_ASM 0 CACHE BOOL "Enables NEON assembly optimizations.")
 set(HAVE_MIPS32 0 CACHE BOOL "Enables MIPS32 optimizations.")
@@ -42,7 +41,6 @@ set(HAVE_UNISTD_H 0 CACHE BOOL "Internal flag, unistd.h present for target.")
 set(HAVE_WXWIDGETS 0 CACHE BOOL "WxWidgets present.")
 set(CONFIG_DEPENDENCY_TRACKING 1 CACHE BOOL "Internal flag.")
 set(CONFIG_EXTERNAL_BUILD 0 CACHE BOOL "Internal flag.")
-set(CONFIG_INSTALL_DOCS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_INSTALL_BINS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_INSTALL_LIBS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_INSTALL_SRCS 0 CACHE BOOL "Internal flag.")
@@ -63,8 +61,6 @@ set(CONFIG_INTERNAL_STATS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_AV1_ENCODER 1 CACHE BOOL "Enable AV1 encoder.")
 set(CONFIG_AV1_DECODER 1 CACHE BOOL "Enable AV1 decoder.")
 set(CONFIG_AV1 1 CACHE BOOL "Internal flag.")
-set(CONFIG_ENCODERS 1 CACHE BOOL "Enable encoding.")
-set(CONFIG_DECODERS 1 CACHE BOOL "Enable decoding.")
 set(CONFIG_STATIC_MSVCRT 0 CACHE BOOL "Internal flag.")
 set(CONFIG_SPATIAL_RESAMPLING 1 CACHE BOOL "Internal flag.")
 set(CONFIG_REALTIME_ONLY 0 CACHE BOOL "Internal flag.")
@@ -84,70 +80,67 @@ set(CONFIG_DECODE_PERF_TESTS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_ENCODE_PERF_TESTS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_COEFFICIENT_RANGE_CHECKING 0 CACHE BOOL "Internal flag.")
 set(CONFIG_LOWBITDEPTH 1 CACHE BOOL "Internal flag.")
-set(CONFIG_HIGHBITDEPTH 0 CACHE BOOL "Internal flag.")
+set(CONFIG_HIGHBITDEPTH 1 CACHE BOOL "Internal flag.")
 set(CONFIG_EXPERIMENTAL 0 CACHE BOOL "Internal flag.")
 set(CONFIG_SIZE_LIMIT 0 CACHE BOOL "Internal flag.")
-set(CONFIG_AOM_QM 0 CACHE BOOL "Internal flag.")
 set(CONFIG_FP_MB_STATS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_CDEF 1 CACHE BOOL "Internal flag.")
-set(CONFIG_VAR_TX 0 CACHE BOOL "Internal flag.")
+set(CONFIG_VAR_TX 1 CACHE BOOL "Internal flag.")
 set(CONFIG_RECT_TX 1 CACHE BOOL "Internal flag.")
-set(CONFIG_REF_MV 1 CACHE BOOL "Internal flag.")
+set(CONFIG_RECT_TX_EXT 0 CACHE BOOL "Internal flag.")
 set(CONFIG_TPL_MV 0 CACHE BOOL "Internal flag.")
 set(CONFIG_DUAL_FILTER 1 CACHE BOOL "Internal flag.")
 set(CONFIG_CONVOLVE_ROUND 0 CACHE BOOL "Internal flag.")
 set(CONFIG_COMPOUND_ROUND 0 CACHE BOOL "Internal flag.")
-set(CONFIG_EXT_TX 0 CACHE BOOL "Internal flag.")
+set(CONFIG_EXT_TX 1 CACHE BOOL "Internal flag.")
+set(CONFIG_DPCM_INTRA 0 CACHE BOOL "Internal flag.")
 set(CONFIG_TX64X64 0 CACHE BOOL "Internal flag.")
-set(CONFIG_SUB8X8_MC 0 CACHE BOOL "Internal flag.")
 set(CONFIG_EXT_INTRA 1 CACHE BOOL "Internal flag.")
 set(CONFIG_INTRA_INTERP 0 CACHE BOOL "Internal flag.")
 set(CONFIG_FILTER_INTRA 0 CACHE BOOL "Internal flag.")
+set(CONFIG_INTRA_EDGE 0 CACHE BOOL "Internal flag.")
 set(CONFIG_INTRABC 0 CACHE BOOL "Internal flag.")
 set(CONFIG_EXT_INTER 0 CACHE BOOL "Internal flag.")
 set(CONFIG_INTERINTRA 0 CACHE BOOL "Internal flag.")
 set(CONFIG_WEDGE 0 CACHE BOOL "Internal flag.")
 set(CONFIG_COMPOUND_SEGMENT 0 CACHE BOOL "Internal flag.")
 set(CONFIG_EXT_REFS 1 CACHE BOOL "Internal flag.")
-set(CONFIG_GLOBAL_MOTION 0 CACHE BOOL "Internal flag.")
+set(CONFIG_GLOBAL_MOTION 1 CACHE BOOL "Internal flag.")
 set(CONFIG_NEW_QUANT 0 CACHE BOOL "Internal flag.")
 set(CONFIG_SUPERTX 0 CACHE BOOL "Internal flag.")
 set(CONFIG_ANS 0 CACHE BOOL "Internal flag.")
-set(CONFIG_EC_MULTISYMBOL 1 CACHE BOOL "Internal flag.")
-set(CONFIG_NEW_TOKENSET 1 CACHE BOOL "Internal flag.")
 set(CONFIG_LOOP_RESTORATION 0 CACHE BOOL "Internal flag.")
 set(CONFIG_EXT_PARTITION 0 CACHE BOOL "Internal flag.")
 set(CONFIG_EXT_PARTITION_TYPES 0 CACHE BOOL "Internal flag.")
 set(CONFIG_UNPOISON_PARTITION_CTX 0 CACHE BOOL "Internal flag.")
 set(CONFIG_EXT_TILE 0 CACHE BOOL "Internal flag.")
-set(CONFIG_MOTION_VAR 0 CACHE BOOL "Internal flag.")
+set(CONFIG_MOTION_VAR 1 CACHE BOOL "Internal flag.")
 set(CONFIG_NCOBMC 0 CACHE BOOL "Internal flag.")
-set(CONFIG_WARPED_MOTION 0 CACHE BOOL "Internal flag.")
+set(CONFIG_WARPED_MOTION 1 CACHE BOOL "Internal flag.")
 set(CONFIG_Q_ADAPT_PROBS 0 CACHE BOOL "Internal flag.")
-set(CONFIG_SUBFRAME_PROB_UPDATE 0 CACHE BOOL "Internal flag.")
 set(CONFIG_BITSTREAM_DEBUG 0 CACHE BOOL "Internal flag.")
 set(CONFIG_ALT_INTRA 1 CACHE BOOL "Internal flag.")
 set(CONFIG_PALETTE 1 CACHE BOOL "Internal flag.")
 set(CONFIG_PALETTE_DELTA_ENCODING 0 CACHE BOOL "Internal flag.")
-set(CONFIG_DAALA_EC 1 CACHE BOOL "Internal flag.")
 set(CONFIG_RAWBITS 0 CACHE BOOL "Internal flag.")
-set(CONFIG_EC_SMALLMUL 0 CACHE BOOL "Internal flag.")
+set(CONFIG_EC_SMALLMUL 1 CACHE BOOL "Internal flag.")
 set(CONFIG_PVQ 0 CACHE BOOL "Internal flag.")
 set(CONFIG_CFL 0 CACHE BOOL "Internal flag.")
 set(CONFIG_XIPHRC 0 CACHE BOOL "Internal flag.")
 set(CONFIG_CB4X4 1 CACHE BOOL "Internal flag.")
 set(CONFIG_CHROMA_2X2 0 CACHE BOOL "Internal flag.")
+set(CONFIG_CHROMA_SUB8X8 1 CACHE BOOL "Internal flag.")
 set(CONFIG_FRAME_SIZE 0 CACHE BOOL "Internal flag.")
 set(CONFIG_DELTA_Q 1 CACHE BOOL "Internal flag.")
-set(CONFIG_EXT_DELTA_Q 0 CACHE BOOL "Internal flag.")
+set(CONFIG_EXT_DELTA_Q 1 CACHE BOOL "Internal flag.")
 set(CONFIG_ADAPT_SCAN 0 CACHE BOOL "Internal flag.")
 set(CONFIG_FILTER_7BIT 1 CACHE BOOL "Internal flag.")
 set(CONFIG_PARALLEL_DEBLOCKING 0 CACHE BOOL "Internal flag.")
 set(CONFIG_PARALLEL_DEBLOCKING_15TAP 0 CACHE BOOL "Internal flag.")
-set(CONFIG_LOOPFILTERING_ACROSS_TILES 0 CACHE BOOL "Internal flag.")
+set(CONFIG_LOOPFILTERING_ACROSS_TILES 1 CACHE BOOL "Internal flag.")
 set(CONFIG_TILE_GROUPS 1 CACHE BOOL "Internal flag.")
 set(CONFIG_EC_ADAPT 1 CACHE BOOL "Internal flag.")
-set(CONFIG_TEMPMV_SIGNALING 0 CACHE BOOL "Internal flag.")
+set(CONFIG_TEMPMV_SIGNALING 1 CACHE BOOL "Internal flag.")
 set(CONFIG_RD_DEBUG 0 CACHE BOOL "Internal flag.")
 set(CONFIG_REFERENCE_BUFFER 1 CACHE BOOL "Internal flag.")
 set(CONFIG_COEF_INTERLEAVE 0 CACHE BOOL "Internal flag.")
@@ -164,4 +157,8 @@ set(CONFIG_MV_COMPRESS 1 CACHE BOOL "Internal flag.")
 set(CONFIG_FRAME_SUPERRES 0 CACHE BOOL "Internal flag.")
 set(CONFIG_NEW_MULTISYMBOL 0 CACHE BOOL "Internal flag.")
 set(CONFIG_COMPOUND_SINGLEREF 0 CACHE BOOL "Internal flag.")
+set(CONFIG_AOM_QM 0 CACHE BOOL "Internal flag.")
+set(CONFIG_ONE_SIDED_COMPOUND 1 CACHE BOOL "Internal flag.")
+set(CONFIG_SMOOTH_HV 0 CACHE BOOL "Internal flag.")
+set(CONFIG_VAR_REFS 0 CACHE BOOL "Internal flag.")
 set(CONFIG_ANALYZER 0 CACHE BOOL "Internal flag.")
diff --git a/third_party/aom/build/cmake/aom_configure.cmake b/third_party/aom/build/cmake/aom_configure.cmake
index 3c9402d0b..0fa2cce0e 100644
--- a/third_party/aom/build/cmake/aom_configure.cmake
+++ b/third_party/aom/build/cmake/aom_configure.cmake
@@ -8,6 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
+if (NOT AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_)
+set(AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_ 1)
+
 include(FindGit)
 include(FindPerl)
 include(FindThreads)
@@ -89,7 +92,13 @@ endif ()
 if ("${AOM_TARGET_CPU}" STREQUAL "x86" OR "${AOM_TARGET_CPU}" STREQUAL "x86_64")
   # TODO(tomfinegan): Support nasm at least as well as the existing build
   # system.
-  find_program(AS_EXECUTABLE yasm $ENV{YASM_PATH})
+  if (ENABLE_NASM)
+    find_program(AS_EXECUTABLE nasm $ENV{NASM_PATH})
+    set(AOM_AS_FLAGS ${AOM_AS_FLAGS} -Ox)
+  else ()
+    find_program(AS_EXECUTABLE yasm $ENV{YASM_PATH})
+  endif ()
+
   if (NOT AS_EXECUTABLE)
     message(FATAL_ERROR "Unable to find yasm. To build without optimizations, "
             "add -DAOM_TARGET_CPU=generic to your cmake command line.")
@@ -115,6 +124,30 @@ endif ()
 
 include("${AOM_ROOT}/build/cmake/cpu.cmake")
 
+if (ENABLE_CCACHE)
+  find_program(CCACHE "ccache")
+  if (NOT "${CCACHE}" STREQUAL "")
+    set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE}")
+    set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE}")
+  else ()
+    message("--- Cannot find ccache, ENABLE_CCACHE ignored.")
+  endif ()
+endif ()
+
+if (ENABLE_DISTCC)
+  find_program(DISTCC "distcc")
+  if (NOT "${DISTCC}" STREQUAL "")
+    set(CMAKE_C_COMPILER_LAUNCHER "${DISTCC}")
+    set(CMAKE_CXX_COMPILER_LAUNCHER "${DISTCC}")
+  else ()
+    message("--- Cannot find distcc, ENABLE_DISTCC ignored.")
+  endif ()
+endif ()
+
+if (NOT CONFIG_AV1_DECODER AND NOT CONFIG_AV1_ENCODER)
+  message(FATAL_ERROR "Decoder and encoder disabled, nothing to build.")
+endif ()
+
 # Test compiler flags.
 if (MSVC)
   add_compiler_flag_if_supported("/W3")
@@ -191,11 +224,6 @@ if (CONFIG_ANALYZER)
   endif ()
 endif ()
 
-if (CONFIG_ANS AND CONFIG_DAALA_EC)
-  message(FATAL_ERROR
-          "CONFIG_ANS and CONFIG_DAALA_EC cannot be enabled together.")
-endif ()
-
 if (NOT MSVC)
   aom_push_var(CMAKE_REQUIRED_LIBRARIES "m")
   aom_check_c_compiles("fenv_check"
@@ -207,6 +235,13 @@ if (NOT MSVC)
   aom_pop_var(CMAKE_REQUIRED_LIBRARIES)
 endif()
 
+set(AOM_LIB_LINK_TYPE PUBLIC)
+if (EMSCRIPTEN)
+  # Avoid CMake generation time errors resulting from collisions with the form
+  # of target_link_libraries() used by Emscripten.cmake.
+  unset(AOM_LIB_LINK_TYPE)
+endif ()
+
 # Generate aom_config templates.
 set(aom_config_asm_template "${AOM_CONFIG_DIR}/aom_config.asm.cmake")
 set(aom_config_h_template "${AOM_CONFIG_DIR}/aom_config.h.cmake")
@@ -244,9 +279,9 @@ find_package(Perl)
 if (NOT PERL_FOUND)
   message(FATAL_ERROR "Perl is required to build libaom.")
 endif ()
-configure_file(
-  "${AOM_ROOT}/build/cmake/rtcd_config.cmake"
-  "${AOM_CONFIG_DIR}/${AOM_TARGET_CPU}_rtcd_config.rtcd")
+
+configure_file("${AOM_CONFIG_DIR}/rtcd_config.cmake"
+               "${AOM_CONFIG_DIR}/${AOM_TARGET_CPU}_rtcd_config.rtcd")
 
 set(AOM_RTCD_CONFIG_FILE_LIST
     "${AOM_ROOT}/aom_dsp/aom_dsp_rtcd_defs.pl"
@@ -304,3 +339,37 @@ execute_process(
   COMMAND ${PERL_EXECUTABLE} "${AOM_ROOT}/build/cmake/aom_version.pl"
   --version_data=${AOM_GIT_DESCRIPTION}
   --version_filename=${AOM_CONFIG_DIR}/aom_version.h)
+
+# Generate aom.pc (pkg-config file).
+if (NOT MSVC)
+  # Extract the version string from aom_version.h
+  file(STRINGS "${AOM_CONFIG_DIR}/aom_version.h" aom_version
+       REGEX "VERSION_STRING_NOSP")
+  string(REPLACE "#define VERSION_STRING_NOSP \"v" "" aom_version
+         "${aom_version}")
+  string(REPLACE "\"" "" aom_version "${aom_version}")
+
+  # Write pkg-config info.
+  set(prefix "${CMAKE_INSTALL_PREFIX}")
+  set(pkgconfig_file "${AOM_CONFIG_DIR}/aom.pc")
+  string(TOLOWER ${CMAKE_PROJECT_NAME} pkg_name)
+  file(WRITE "${pkgconfig_file}" "# libaom pkg-config.\n")
+  file(APPEND "${pkgconfig_file}" "prefix=${prefix}\n")
+  file(APPEND "${pkgconfig_file}" "exec_prefix=${prefix}/bin\n")
+  file(APPEND "${pkgconfig_file}" "libdir=${prefix}/lib\n")
+  file(APPEND "${pkgconfig_file}" "includedir=${prefix}/include\n\n")
+  file(APPEND "${pkgconfig_file}" "Name: ${pkg_name}\n")
+  file(APPEND "${pkgconfig_file}" "Description: AV1 codec library.\n")
+  file(APPEND "${pkgconfig_file}" "Version: ${aom_version}\n")
+  file(APPEND "${pkgconfig_file}" "Requires:\n")
+  file(APPEND "${pkgconfig_file}" "Conflicts:\n")
+  file(APPEND "${pkgconfig_file}" "Libs: -L${prefix}/lib -l${pkg_name} -lm\n")
+  if (CONFIG_MULTITHREAD AND HAVE_PTHREAD_H)
+    file(APPEND "${pkgconfig_file}" "Libs.private: -lm -lpthread\n")
+  else ()
+    file(APPEND "${pkgconfig_file}" "Libs.private: -lm\n")
+  endif ()
+  file(APPEND "${pkgconfig_file}" "Cflags: -I${prefix}/include\n")
+endif ()
+
+endif ()  # AOM_BUILD_CMAKE_AOM_CONFIGURE_CMAKE_
diff --git a/third_party/aom/build/cmake/aom_optimization.cmake b/third_party/aom/build/cmake/aom_optimization.cmake
index e2b0ba07e..5a3865281 100644
--- a/third_party/aom/build/cmake/aom_optimization.cmake
+++ b/third_party/aom/build/cmake/aom_optimization.cmake
@@ -75,7 +75,8 @@ function (get_asm_obj_format out_format)
       set(objformat "macho64")
     elseif ("${AOM_TARGET_SYSTEM}" STREQUAL "Linux")
       set(objformat "elf64")
-    elseif ("${AOM_TARGET_SYSTEM}" STREQUAL "Windows")
+    elseif ("${AOM_TARGET_SYSTEM}" STREQUAL "MSYS" OR
+            "${AOM_TARGET_SYSTEM}" STREQUAL "Windows")
       set(objformat "win64")
     else ()
       message(FATAL_ERROR "Unknown obj format: ${AOM_TARGET_SYSTEM}")
@@ -85,7 +86,8 @@ function (get_asm_obj_format out_format)
       set(objformat "macho32")
     elseif ("${AOM_TARGET_SYSTEM}" STREQUAL "Linux")
       set(objformat "elf32")
-    elseif ("${AOM_TARGET_SYSTEM}" STREQUAL "Windows")
+    elseif ("${AOM_TARGET_SYSTEM}" STREQUAL "MSYS" OR
+            "${AOM_TARGET_SYSTEM}" STREQUAL "Windows")
       set(objformat "win32")
     else ()
       message(FATAL_ERROR "Unknown obj format: ${AOM_TARGET_SYSTEM}")
@@ -120,7 +122,7 @@ function (add_asm_library lib_name asm_sources dependent_target)
     add_custom_command(OUTPUT "${asm_object}"
                        COMMAND ${AS_EXECUTABLE}
                        ARGS ${AOM_AS_FLAGS}
-                            -I${AOM_ROOT} -I${AOM_CONFIG_DIR}
+                            -I${AOM_ROOT}/ -I${AOM_CONFIG_DIR}/
                             -o "${asm_object}" "${asm_source}"
                        DEPENDS "${asm_source}"
                        COMMENT "Building ASM object ${asm_object}"
@@ -141,7 +143,7 @@ function (add_asm_library lib_name asm_sources dependent_target)
        "void ${lib_name}_dummy_function(void) {}\n")
   target_sources(${lib_name} PUBLIC ${dummy_c_file})
 
-  target_link_libraries(${dependent_target} PRIVATE ${lib_name})
+  target_link_libraries(${dependent_target} ${AOM_LIB_LINK_TYPE} ${lib_name})
 
   # Add the new lib target to the global list of aom library targets.
   list(APPEND AOM_LIB_TARGETS ${lib_name})
diff --git a/third_party/aom/build/cmake/compiler_flags.cmake b/third_party/aom/build/cmake/compiler_flags.cmake
index beb217abc..c9fc69b92 100644
--- a/third_party/aom/build/cmake/compiler_flags.cmake
+++ b/third_party/aom/build/cmake/compiler_flags.cmake
@@ -8,6 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
+if (NOT AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_)
+set(AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_ 1)
+
 include(CheckCCompilerFlag)
 include(CheckCXXCompilerFlag)
 
@@ -216,3 +219,5 @@ function (append_exe_linker_flag flag)
         "" FORCE)
   endif ()
 endfunction ()
+
+endif ()  # AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_
diff --git a/third_party/aom/build/cmake/compiler_tests.cmake b/third_party/aom/build/cmake/compiler_tests.cmake
index e763597a2..89f0bc12c 100644
--- a/third_party/aom/build/cmake/compiler_tests.cmake
+++ b/third_party/aom/build/cmake/compiler_tests.cmake
@@ -8,6 +8,9 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
+if (NOT AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_)
+set(AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_ 1)
+
 include(CheckCSourceCompiles)
 include(CheckCXXSourceCompiles)
 
@@ -131,3 +134,5 @@ function (aom_get_inline result)
     set(${result} "__inline" PARENT_SCOPE)
   endif ()
 endfunction ()
+
+endif ()  # AOM_BUILD_CMAKE_COMPILER_TESTS_CMAKE_
diff --git a/third_party/aom/build/cmake/dist.cmake b/third_party/aom/build/cmake/dist.cmake
new file mode 100644
index 000000000..0de68a44d
--- /dev/null
+++ b/third_party/aom/build/cmake/dist.cmake
@@ -0,0 +1,51 @@
+##
+## Copyright (c) 2017, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+cmake_minimum_required(VERSION 3.5)
+
+# Converts spaces in $in_string to semicolons and writes the output to
+# $out_string. In CMake's eyes this converts the input string to a list.
+function (listify_string in_string out_string)
+  string(REPLACE " " ";" ${out_string} ${in_string})
+  set(${out_string} "${${out_string}}" PARENT_SCOPE)
+endfunction ()
+
+set(REQUIRED_ARGS "AOM_ROOT" "AOM_CONFIG_DIR" "AOM_DIST_DIR" "AOM_DIST_EXAMPLES"
+    "AOM_DIST_APPS" "AOM_DIST_INCLUDES" "AOM_DIST_LIBS" "ENABLE_DOCS")
+
+foreach (arg ${REQUIRED_ARGS})
+  if ("${${arg}}" STREQUAL "")
+    message(FATAL_ERROR "${arg} must not be empty.")
+  endif ()
+endforeach ()
+
+if (ENABLE_DOCS)
+  file(INSTALL "${AOM_CONFIG_DIR}/docs" DESTINATION "${AOM_DIST_DIR}")
+endif ()
+
+listify_string("${AOM_DIST_EXAMPLES}" "AOM_DIST_EXAMPLES")
+foreach (example ${AOM_DIST_EXAMPLES})
+  file(INSTALL "${example}" DESTINATION "${AOM_DIST_DIR}/bin/examples")
+endforeach ()
+
+listify_string("${AOM_DIST_APPS}" "AOM_DIST_APPS")
+foreach (app ${AOM_DIST_APPS})
+  file(INSTALL "${app}" DESTINATION "${AOM_DIST_DIR}/bin")
+endforeach ()
+
+listify_string("${AOM_DIST_INCLUDES}" "AOM_DIST_INCLUDES")
+foreach (inc ${AOM_DIST_INCLUDES})
+  file(INSTALL "${inc}" DESTINATION "${AOM_DIST_DIR}/include/aom")
+endforeach ()
+
+listify_string("${AOM_DIST_LIBS}" "AOM_DIST_LIBS")
+foreach (lib ${AOM_DIST_LIBS})
+  file(INSTALL "${lib}" DESTINATION "${AOM_DIST_DIR}/lib")
+endforeach ()
diff --git a/third_party/aom/build/cmake/generate_aom_config_templates.cmake b/third_party/aom/build/cmake/generate_aom_config_templates.cmake
index aea4253bb..effa456fc 100644
--- a/third_party/aom/build/cmake/generate_aom_config_templates.cmake
+++ b/third_party/aom/build/cmake/generate_aom_config_templates.cmake
@@ -37,6 +37,18 @@ set(h_file_header_block
 \#ifndef AOM_CONFIG_H_
 \#define AOM_CONFIG_H_
 ")
+set(cmake_file_header_block
+"##
+## Copyright (c) ${year}, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+")
 
 # Terminates cmake execution when $var_name is an empty string, or the variable
 # name it contains does not expand to an existing directory.
@@ -82,3 +94,13 @@ foreach(cache_var ${cmake_cache_vars})
   endif ()
 endforeach ()
 
+set(aom_rtcd_config_template "${AOM_CONFIG_DIR}/rtcd_config.cmake")
+file(WRITE "${aom_rtcd_config_template}" ${cmake_file_header_block})
+foreach(cache_var ${cmake_cache_vars})
+  if (NOT "${cache_var}" MATCHES
+      "AOM_CONFIG_DIR\|AOM_ROOT\|^CMAKE_\|INLINE\|RESTRICT")
+    file(APPEND "${aom_rtcd_config_template}"
+         "${cache_var}=\${RTCD_${cache_var}}\n")
+  endif ()
+endforeach ()
+
diff --git a/third_party/aom/build/cmake/msvc_runtime.cmake b/third_party/aom/build/cmake/msvc_runtime.cmake
index 0327217b4..3da5f7df6 100644
--- a/third_party/aom/build/cmake/msvc_runtime.cmake
+++ b/third_party/aom/build/cmake/msvc_runtime.cmake
@@ -8,6 +8,8 @@
 ## Media Patent License 1.0 was not distributed with this source code in the
 ## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 ##
+if (NOT AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_)
+set(AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_ 1)
 
 if (MSVC)
   # CMake defaults to producing code linked to the DLL MSVC runtime. That will
@@ -24,3 +26,5 @@ if (MSVC)
     endforeach (flag_var)
   endif ()
 endif ()
+
+endif ()  # AOM_BUILD_CMAKE_MSVC_RUNTIME_CMAKE_
diff --git a/third_party/aom/build/cmake/rtcd_config.cmake b/third_party/aom/build/cmake/rtcd_config.cmake
deleted file mode 100644
index cdea3452a..000000000
--- a/third_party/aom/build/cmake/rtcd_config.cmake
+++ /dev/null
@@ -1,137 +0,0 @@
-##
-## Copyright (c) 2017, Alliance for Open Media. All rights reserved
-##
-## This source code is subject to the terms of the BSD 2 Clause License and
-## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
-## was not distributed with this source code in the LICENSE file, you can
-## obtain it at www.aomedia.org/license/software. If the Alliance for Open
-## Media Patent License 1.0 was not distributed with this source code in the
-## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
-##
-ARCH_ARM=${RTCD_ARCH_ARM}
-ARCH_MIPS=${RTCD_ARCH_MIPS}
-ARCH_X86=${RTCD_ARCH_X86}
-ARCH_X86_64=${RTCD_ARCH_X86_64}
-HAVE_NEON=${RTCD_HAVE_NEON}
-HAVE_NEON_ASM=${RTCD_HAVE_NEON_ASM}
-HAVE_MIPS32=${RTCD_HAVE_MIPS32}
-HAVE_DSPR2=${RTCD_HAVE_DSPR2}
-HAVE_MSA=${RTCD_HAVE_MSA}
-HAVE_MIPS64=${RTCD_HAVE_MIPS64}
-HAVE_MMX=${RTCD_HAVE_MMX}
-HAVE_SSE=${RTCD_HAVE_SSE}
-HAVE_SSE2=${RTCD_HAVE_SSE2}
-HAVE_SSE3=${RTCD_HAVE_SSE3}
-HAVE_SSSE3=${RTCD_HAVE_SSSE3}
-HAVE_SSE4_1=${RTCD_HAVE_SSE4_1}
-HAVE_AVX=${RTCD_HAVE_AVX}
-HAVE_AVX2=${RTCD_HAVE_AVX2}
-CONFIG_ACCOUNTING=${RTCD_CONFIG_ACCOUNTING}
-CONFIG_INSPECTION=${RTCD_CONFIG_INSPECTION}
-CONFIG_ADAPT_SCAN=${RTCD_CONFIG_ADAPT_SCAN}
-CONFIG_ALT_INTRA=${RTCD_CONFIG_ALT_INTRA}
-CONFIG_ANS=${RTCD_CONFIG_ANS}
-CONFIG_HIGHBITDEPTH=${RTCD_CONFIG_HIGHBITDEPTH}
-CONFIG_AOM_QM=${RTCD_CONFIG_AOM_QM}
-CONFIG_AV1=${RTCD_CONFIG_AV1}
-CONFIG_AV1_DECODER=${RTCD_CONFIG_AV1_DECODER}
-CONFIG_AV1_ENCODER=${RTCD_CONFIG_AV1_ENCODER}
-CONFIG_BIG_ENDIAN=${RTCD_CONFIG_BIG_ENDIAN}
-CONFIG_BITSTREAM_DEBUG=${RTCD_CONFIG_BITSTREAM_DEBUG}
-CONFIG_CB4X4=${RTCD_CONFIG_CB4X4}
-CONFIG_CDEF=${RTCD_CONFIG_CDEF}
-CONFIG_CHROMA_2X2=${RTCD_CONFIG_CHROMA_2X2}
-CONFIG_CODEC_SRCS=${RTCD_CONFIG_CODEC_SRCS}
-CONFIG_COEFFICIENT_RANGE_CHECKING=${RTCD_CONFIG_COEFFICIENT_RANGE_CHECKING}
-CONFIG_COEF_INTERLEAVE=${RTCD_CONFIG_COEF_INTERLEAVE}
-CONFIG_COMPOUND_SEGMENT=${RTCD_CONFIG_COMPOUND_SEGMENT}
-CONFIG_CONVOLVE_ROUND=${RTCD_CONFIG_CONVOLVE_ROUND}
-CONFIG_DAALA_DIST=${RTCD_CONFIG_DAALA_DIST}
-CONFIG_DAALA_EC=${RTCD_CONFIG_DAALA_EC}
-CONFIG_DEBUG=${RTCD_CONFIG_DEBUG}
-CONFIG_DEBUG_LIBS=${RTCD_CONFIG_DEBUG_LIBS}
-CONFIG_DECODERS=${RTCD_CONFIG_DECODERS}
-CONFIG_DECODE_PERF_TESTS=${RTCD_CONFIG_DECODE_PERF_TESTS}
-CONFIG_DELTA_Q=${RTCD_CONFIG_DELTA_Q}
-CONFIG_DEPENDENCY_TRACKING=${RTCD_CONFIG_DEPENDENCY_TRACKING}
-CONFIG_DEPENDENT_HORZTILES=${RTCD_CONFIG_DEPENDENT_HORZTILES}
-CONFIG_DUAL_FILTER=${RTCD_CONFIG_DUAL_FILTER}
-CONFIG_EC_ADAPT=${RTCD_CONFIG_EC_ADAPT}
-CONFIG_EC_MULTISYMBOL=${RTCD_CONFIG_EC_MULTISYMBOL}
-CONFIG_ENCODERS=${RTCD_CONFIG_ENCODERS}
-CONFIG_ENCODE_PERF_TESTS=${RTCD_CONFIG_ENCODE_PERF_TESTS}
-CONFIG_ENTROPY_STATS=${RTCD_CONFIG_ENTROPY_STATS}
-CONFIG_ERROR_CONCEALMENT=${RTCD_CONFIG_ERROR_CONCEALMENT}
-CONFIG_EXPERIMENTAL=${RTCD_CONFIG_EXPERIMENTAL}
-CONFIG_EXTERNAL_BUILD=${RTCD_CONFIG_EXTERNAL_BUILD}
-CONFIG_EXT_INTER=${RTCD_CONFIG_EXT_INTER}
-CONFIG_EXT_INTRA=${RTCD_CONFIG_EXT_INTRA}
-CONFIG_EXT_PARTITION=${RTCD_CONFIG_EXT_PARTITION}
-CONFIG_EXT_PARTITION_TYPES=${RTCD_CONFIG_EXT_PARTITION_TYPES}
-CONFIG_EXT_REFS=${RTCD_CONFIG_EXT_REFS}
-CONFIG_EXT_TILE=${RTCD_CONFIG_EXT_TILE}
-CONFIG_EXT_TX=${RTCD_CONFIG_EXT_TX}
-CONFIG_FILTER_7BIT=${RTCD_CONFIG_FILTER_7BIT}
-CONFIG_FILTER_INTRA=${RTCD_CONFIG_FILTER_INTRA}
-CONFIG_FP_MB_STATS=${RTCD_CONFIG_FP_MB_STATS}
-CONFIG_FRAME_SIZE=${RTCD_CONFIG_FRAME_SIZE}
-CONFIG_GCC=${RTCD_CONFIG_GCC}
-CONFIG_GCOV=${RTCD_CONFIG_GCOV}
-CONFIG_GLOBAL_MOTION=${RTCD_CONFIG_GLOBAL_MOTION}
-CONFIG_GPROF=${RTCD_CONFIG_GPROF}
-CONFIG_INSTALL_BINS=${RTCD_CONFIG_INSTALL_BINS}
-CONFIG_INSTALL_DOCS=${RTCD_CONFIG_INSTALL_DOCS}
-CONFIG_INSTALL_LIBS=${RTCD_CONFIG_INSTALL_LIBS}
-CONFIG_INSTALL_SRCS=${RTCD_CONFIG_INSTALL_SRCS}
-CONFIG_INTERNAL_STATS=${RTCD_CONFIG_INTERNAL_STATS}
-CONFIG_INTRA_INTERP=${RTCD_CONFIG_INTRA_INTERP}
-CONFIG_LIBYUV=${RTCD_CONFIG_LIBYUV}
-CONFIG_LOOPFILTERING_ACROSS_TILES=${RTCD_CONFIG_LOOPFILTERING_ACROSS_TILES}
-CONFIG_LOOP_RESTORATION=${RTCD_CONFIG_LOOP_RESTORATION}
-CONFIG_LOWBITDEPTH=${RTCD_CONFIG_LOWBITDEPTH}
-CONFIG_LV_MAP=${RTCD_CONFIG_LV_MAP}
-CONFIG_MASKED_TX=${RTCD_CONFIG_MASKED_TX}
-CONFIG_MOTION_VAR=${RTCD_CONFIG_MOTION_VAR}
-CONFIG_MSVS=${RTCD_CONFIG_MSVS}
-CONFIG_MULTITHREAD=${RTCD_CONFIG_MULTITHREAD}
-CONFIG_MV_COMPRESS=${RTCD_CONFIG_MV_COMPRESS}
-CONFIG_NCOBMC=${RTCD_CONFIG_NCOBMC}
-CONFIG_NEW_QUANT=${RTCD_CONFIG_NEW_QUANT}
-CONFIG_NEW_TOKENSET=${RTCD_CONFIG_NEW_TOKENSET}
-CONFIG_ONTHEFLY_BITPACKING=${RTCD_CONFIG_ONTHEFLY_BITPACKING}
-CONFIG_OS_SUPPORT=${RTCD_CONFIG_OS_SUPPORT}
-CONFIG_PALETTE=${RTCD_CONFIG_PALETTE}
-CONFIG_PALETTE_THROUGHPUT=${RTCD_CONFIG_PALETTE_THROUGHPUT}
-CONFIG_PARALLEL_DEBLOCKING=${RTCD_CONFIG_PARALLEL_DEBLOCKING}
-CONFIG_PIC=${RTCD_CONFIG_PIC}
-CONFIG_POSTPROC=${RTCD_CONFIG_POSTPROC}
-CONFIG_POSTPROC_VISUALIZER=${RTCD_CONFIG_POSTPROC_VISUALIZER}
-CONFIG_PVQ=${RTCD_CONFIG_PVQ}
-CONFIG_RAWBITS=${RTCD_CONFIG_RAWBITS}
-CONFIG_RD_DEBUG=${RTCD_CONFIG_RD_DEBUG}
-CONFIG_REALTIME_ONLY=${RTCD_CONFIG_REALTIME_ONLY}
-CONFIG_RECT_TX=${RTCD_CONFIG_RECT_TX}
-CONFIG_REFERENCE_BUFFER=${RTCD_CONFIG_REFERENCE_BUFFER}
-CONFIG_REF_ADAPT=${RTCD_CONFIG_REF_ADAPT}
-CONFIG_REF_MV=${RTCD_CONFIG_REF_MV}
-CONFIG_RUNTIME_CPU_DETECT=${RTCD_CONFIG_RUNTIME_CPU_DETECT}
-CONFIG_RVCT=${RTCD_CONFIG_RVCT}
-CONFIG_SHARED=${RTCD_CONFIG_SHARED}
-CONFIG_SIZE_LIMIT=${RTCD_CONFIG_SIZE_LIMIT}
-CONFIG_SMALL=${RTCD_CONFIG_SMALL}
-CONFIG_SPATIAL_RESAMPLING=${RTCD_CONFIG_SPATIAL_RESAMPLING}
-CONFIG_STATIC=${RTCD_CONFIG_STATIC}
-CONFIG_STATIC_MSVCRT=${RTCD_CONFIG_STATIC_MSVCRT}
-CONFIG_SUB8X8_MC=${RTCD_CONFIG_SUB8X8_MC}
-CONFIG_SUPERTX=${RTCD_CONFIG_SUPERTX}
-CONFIG_TEMPMV_SIGNALING=${RTCD_CONFIG_TEMPMV_SIGNALING}
-CONFIG_TILE_GROUPS=${RTCD_CONFIG_TILE_GROUPS}
-CONFIG_TPL_MV=${RTCD_CONFIG_TPL_MV}
-CONFIG_TRIPRED=${RTCD_CONFIG_TRIPRED}
-CONFIG_TX64X64=${RTCD_CONFIG_TX64X64}
-CONFIG_UNIT_TESTS=${RTCD_CONFIG_UNIT_TESTS}
-CONFIG_UNPOISON_PARTITION_CTX=${RTCD_CONFIG_UNPOISON_PARTITION_CTX}
-CONFIG_VAR_TX=${RTCD_CONFIG_VAR_TX}
-CONFIG_WARPED_MOTION=${RTCD_CONFIG_WARPED_MOTION}
-CONFIG_WEBM_IO=${RTCD_CONFIG_WEBM_IO}
-CONFIG_XIPHRC=${RTCD_CONFIG_XIPHRC}
diff --git a/third_party/aom/build/cmake/toolchains/armv7-ios.cmake b/third_party/aom/build/cmake/toolchains/armv7-ios.cmake
index bcd37a06d..71ac4067c 100644
--- a/third_party/aom/build/cmake/toolchains/armv7-ios.cmake
+++ b/third_party/aom/build/cmake/toolchains/armv7-ios.cmake
@@ -27,8 +27,4 @@ set(AOM_NEON_INTRIN_FLAG "")
 # No runtime cpu detect for armv7s-ios.
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE BOOL "")
 
-# RTCD generation requires --disable-media for armv7s-ios.
-set(AOM_RTCD_FLAGS ${AOM_RTCD_FLAGS} --disable-media)
-string(STRIP AOM_RTCD_FLAGS ${AOM_RTCD_FLAGS})
-
 endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7_IOS_CMAKE_
diff --git a/third_party/aom/build/cmake/toolchains/armv7s-ios.cmake b/third_party/aom/build/cmake/toolchains/armv7s-ios.cmake
index 08a0a37ee..99e1dc39c 100644
--- a/third_party/aom/build/cmake/toolchains/armv7s-ios.cmake
+++ b/third_party/aom/build/cmake/toolchains/armv7s-ios.cmake
@@ -27,8 +27,4 @@ set(AOM_NEON_INTRIN_FLAG "")
 # No runtime cpu detect for armv7s-ios.
 set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE BOOL "")
 
-# RTCD generation requires --disable-media for armv7s-ios.
-set(AOM_RTCD_FLAGS ${AOM_RTCD_FLAGS} --disable-media)
-string(STRIP AOM_RTCD_FLAGS ${AOM_RTCD_FLAGS})
-
 endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARMV7S_IOS_CMAKE_
diff --git a/third_party/aom/build/make/Android.mk b/third_party/aom/build/make/Android.mk
index 6757b1f59..e50faef92 100644
--- a/third_party/aom/build/make/Android.mk
+++ b/third_party/aom/build/make/Android.mk
@@ -43,10 +43,6 @@
 # Configuring with --disable-runtime-cpu-detect --disable-neon \
 #     --disable-neon-asm
 # will remove any NEON dependency.
-
-# To change to building armeabi, run ./libaom/configure again, but with
-# --target=armv6-android-gcc and modify the Application.mk file to
-# set APP_ABI := armeabi
 #
 # Running ndk-build will build libaom and include it in your project.
 #
@@ -61,9 +57,6 @@ ASM_CNV_PATH := $(LOCAL_PATH)/$(ASM_CNV_PATH_LOCAL)
 ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
   include $(CONFIG_DIR)libs-armv7-android-gcc.mk
   LOCAL_ARM_MODE := arm
-else ifeq  ($(TARGET_ARCH_ABI),armeabi)
-  include $(CONFIG_DIR)libs-armv6-android-gcc.mk
-  LOCAL_ARM_MODE := arm
 else ifeq  ($(TARGET_ARCH_ABI),arm64-v8a)
   include $(CONFIG_DIR)libs-armv8-android-gcc.mk
   LOCAL_ARM_MODE := arm
diff --git a/third_party/aom/build/make/configure.sh b/third_party/aom/build/make/configure.sh
index 4ece17aee..b18173b82 100644
--- a/third_party/aom/build/make/configure.sh
+++ b/third_party/aom/build/make/configure.sh
@@ -687,9 +687,6 @@ process_common_toolchain() {
       aarch64*)
         tgt_isa=arm64
         ;;
-      armv6*)
-        tgt_isa=armv6
-        ;;
       armv7*-hardfloat* | armv7*-gnueabihf | arm-*-gnueabihf)
         tgt_isa=armv7
         float_abi=hard
@@ -898,37 +895,6 @@ process_common_toolchain() {
           if disabled neon && enabled neon_asm; then
             die "Disabling neon while keeping neon-asm is not supported"
           fi
-          case ${toolchain} in
-            # Apple iOS SDKs no longer support armv6 as of the version 9
-            # release (coincides with release of Xcode 7). Only enable media
-            # when using earlier SDK releases.
-            *-darwin*)
-              if [ "$(show_darwin_sdk_major_version iphoneos)" -lt 9 ]; then
-                soft_enable media
-              else
-                soft_disable media
-                RTCD_OPTIONS="${RTCD_OPTIONS}--disable-media "
-              fi
-              ;;
-            *)
-              soft_enable media
-              ;;
-          esac
-          ;;
-        armv6)
-          case ${toolchain} in
-            *-darwin*)
-              if [ "$(show_darwin_sdk_major_version iphoneos)" -lt 9 ]; then
-                soft_enable media
-              else
-                die "Your iOS SDK does not support armv6."
-              fi
-              ;;
-            *)
-              soft_enable media
-              ;;
-          esac
-          ;;
       esac
 
       asm_conversion_cmd="cat"
diff --git a/third_party/aom/build/make/rtcd.pl b/third_party/aom/build/make/rtcd.pl
index 354ae5176..7add5a036 100755
--- a/third_party/aom/build/make/rtcd.pl
+++ b/third_party/aom/build/make/rtcd.pl
@@ -382,12 +382,8 @@ if ($opts{arch} eq 'x86') {
   }
   close CONFIG_FILE;
   mips;
-} elsif ($opts{arch} eq 'armv6') {
-  @ALL_ARCHS = filter(qw/media/);
-  arm;
 } elsif ($opts{arch} =~ /armv7\w?/) {
-  @ALL_ARCHS = filter(qw/media neon_asm neon/);
-  @REQUIRES = filter(keys %required ? keys %required : qw/media/);
+  @ALL_ARCHS = filter(qw/neon_asm neon/);
   &require(@REQUIRES);
   arm;
 } elsif ($opts{arch} eq 'armv8' || $opts{arch} eq 'arm64' ) {
diff --git a/third_party/aom/build/make/version.sh b/third_party/aom/build/make/version.sh
index c0eef9f58..2a7090e4d 100755
--- a/third_party/aom/build/make/version.sh
+++ b/third_party/aom/build/make/version.sh
@@ -28,13 +28,14 @@ if [ -e "${source_path}/.git" ]; then
     # Source Path is a git working copy. Check for local modifications.
     # Note that git submodules may have a file as .git, not a directory.
     export GIT_DIR="${source_path}/.git"
-    git_version_id=`git describe --match=v[0-9]* 2>/dev/null`
+    git_version_id=$(git describe --match=v[0-9]* 2>/dev/null)
 fi
 
 changelog_version=""
 for p in "${source_path}" "${source_path}/.."; do
     if [ -z "$git_version_id" -a -f "${p}/CHANGELOG" ]; then
-        changelog_version=`head -n1 "${p}/CHANGELOG" | awk '{print $2}'`
+        changelog_version=$(grep -m 1 " v[0-9]" "${p}/CHANGELOG" \
+            | awk '{print $2}')
         changelog_version="${changelog_version}"
         break
     fi