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android / platform / external / libavc / 7d6f8576e0df961e960fdf2ab9f5212b9bb6725d
commit7d6f8576e0df961e960fdf2ab9f5212b9bb6725d[log] [tgz]
authorRakesh Kumar <rakesh.kumar@ittiam.com>Wed Oct 23 19:23:37 2024 +0530
committerHarish Mahendrakar <harish.mahendrakar@ittiam.com>Thu Oct 24 08:16:56 2024 -0700
tree6a0f676758f3377c5612240cef09366b2d9673d1
parent1a896d45d57d72719864d080f383b06744baec9e [diff]
libavcdec: Fix integer overflow issue in ui_max_frame_num

In avc MaxFrameNum can be 65536 which is of 17 bits due to which
interger overflow was happening for i2_max_frm_num and
ui_max_frame_num. This has been fixed.

Bug: 369676522
Test: poc in bug description

Change-Id: I858eea6bf8eea1e2cee6d4a7c28a84705eb51792
3 files changed
tree: 6a0f676758f3377c5612240cef09366b2d9673d1
  1. .github/
  2. .vscode/
  3. cmake/
  4. common/
  5. decoder/
  6. encoder/
  7. examples/
  8. fuzzer/
  9. tests/
  10. .clang-format
  11. .gitignore
  12. Android.bp
  13. CMakeLists.txt
  14. FrameInfo.md
  15. libavc_blocklist.txt
  16. LICENSE
  17. METADATA
  18. MODULE_LICENSE_APACHE2
  19. NOTICE
  20. OWNERS
  21. PREUPLOAD.cfg
  22. README.md
  23. TEST_MAPPING
README.md

LIBAVC

Getting Started Document

LibAVC build steps

Supports:

  • aarch32/aarch64 on Linux.
  • aarch32/aarch64 on Android.
  • x86_32/x86_64 on Linux.

Native Builds

Use the following commands for building on the target machine

$ cd external/libavc
$ mkdir build
$ cd build
$ cmake ..
$ make

Cross-compiler based builds

Building for x86_32 on a x86_64 Linux machine

$ cd external/libavc
$ mkdir build
$ cd build
$ CFLAGS="-m32" CXXFLAGS="-m32" LDFLAGS="-m32" cmake ..
$ make

Building for aarch32/aarch64

Update ‘CMAKE_C_COMPILER’, ‘CMAKE_CXX_COMPILER’, ‘CMAKE_C_COMPILER_AR’, and ‘CMAKE_CXX_COMPILER_AR’ in CMAKE_TOOLCHAIN_FILE passed below

$ cd external/libavc
$ mkdir build
$ cd build

For aarch64

$ cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/aarch64_toolchain.cmake
$ make

For aarch32

$ cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/aarch32_toolchain.cmake
$ make

Building for android

NOTE: This assumes that you are building on a machine that has Android NDK.

$ cd external/libavc
$ mkdir build
$ cd build

Armv7 (32-bit)

cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/android_toolchain.cmake\
    -DAVC_ANDROID_NDK_PATH=/opt/android-ndk-r26d/\
    -DANDROID_ABI=armeabi-v7a\
    -DANDROID_PLATFORM=android-23 ../
make

Armv8 (64-bit)

cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/android_toolchain.cmake\
    -DAVC_ANDROID_NDK_PATH=/opt/android-ndk-r26d/\
    -DANDROID_ABI=arm64-v8a\
    -DANDROID_PLATFORM=android-23 ../
make