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https://github.com/andreicherniaev/buildroot_x86_non-simd_openh264_meson
Build Linux with openh264 for non-SIMD X86 CPU using meson build system
https://github.com/andreicherniaev/buildroot_x86_non-simd_openh264_meson
buildroot example
Last synced: about 1 month ago
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Build Linux with openh264 for non-SIMD X86 CPU using meson build system
- Host: GitHub
- URL: https://github.com/andreicherniaev/buildroot_x86_non-simd_openh264_meson
- Owner: AndreiCherniaev
- License: apache-2.0
- Created: 2024-11-04T02:23:30.000Z (2 months ago)
- Default Branch: main
- Last Pushed: 2024-11-04T04:45:12.000Z (2 months ago)
- Last Synced: 2024-11-04T05:22:49.805Z (2 months ago)
- Topics: buildroot, example
- Language: Makefile
- Homepage: https://github.com/cisco/openh264/issues/3545#issuecomment-2453704293
- Size: 4.88 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
How to build Linux image with openh264 for non-SIMD X86 CPU (like Geode). Let's try to use not makefile but moder build system meson, see [topic in cisco repo](https://github.com/cisco/openh264/issues/3545#issuecomment-2453704293) and buildroot [issue](https://gitlab.com/buildroot.org/buildroot/-/issues/64).
## Compare with pc_x86_64_bios_defconfig
Config [qemu_x86_openh264_defconfig](my_external_tree/configs/qemu_x86_openh264_defconfig) is based on [qemu_x86_defconfig](https://github.com/buildroot/buildroot/blob/e82217622ea4778148de82a4b77972940b5e9a9e/configs/qemu_x86_defconfig).
## Clone
```
git clone --remote-submodules --recurse-submodules -j8 https://github.com/AndreiCherniaev/buildroot_x86_non-simd_openh264_meson.git
cd buildroot_x86_non-simd_openh264_meson
```
## Add my patch
[Patch](https://buildroot.org/downloads/manual/manual.html#_adding_project_specific_patches_and_hashes) buildroot using file "0001-package-libopenh264-prepare-to-switch-it-to-meson-bu.patch"
## Make image
```
make clean -C buildroot
make BR2_EXTERNAL=$PWD/my_external_tree -C $PWD/buildroot qemu_x86_openh264_defconfig
make -C buildroot
```
## Save non-default buildroot .config
To save non-default buildroot's buildroot/.config to $PWD/my_external_tree/configs/f2fs_qemu_x86_defconfig
```
make -C $PWD/buildroot savedefconfig BR2_DEFCONFIG=$PWD/my_external_tree/configs/qemu_x86_openh264_defconfig
```
## Start in QEMU
This code is based on emulation [script1](https://github.com/buildroot/buildroot/blob/02540771bccf7b10c7daecce5f0e1e41a73c1e07/boot/grub2/readme.txt#L4) and [script2](https://github.com/buildroot/buildroot/blob/9e3d572ff532df945fbc282fed22d10098e5718b/board/pc/readme.txt), run the emulation with:
```
qemu-system-i386 -M pc -drive file=output/images/disk.img,if=virtio,format=raw -net nic,model=virtio -net user
```
Note: image file `Buildroot.img` is located outside of repo folder so we use `../`. Optionally add `-nographic` to see output not in extra screen but in console terminal. Or `-display curses` to pseudographic.
## Problems
In case of problems to fix it and then build again
```
make libopenh264-dirclean -C buildroot
make libopenh264-rebuild -C buildroot 2>&1 |tee libopenh264.log
```
see `libopenh264.log`