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several typos fixed, missing commands added #125

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several typos fixed, missing commands added #125

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11 changes: 7 additions & 4 deletions README_building.md
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,8 @@ Currently, the directory name is fixed for each source package. If possible, use
mkdir -p ~/Workspace/webrtc
cd ~/Workspace/webrtc
fetch --nohooks webrtc
cd src
./build/install-build-deps.sh
gclient sync
git config branch.autosetupmerge always
git config branch.autosetuprebase always
Expand All @@ -91,11 +93,11 @@ cd ~/Workspace/rpi_rootfs
./build_rootfs.sh download # note1
unzip yyyy-mm-dd-raspios-buster.zip # yyyy-mm-dd is date format of image released

./build_rootfs.sh create yyyy-mm-dd-raspios-buster.img # note 2
sudo ./build_rootfs.sh create yyyy-mm-dd-raspios-buster.img # note 2
```
_Note 1: If you already have an OS image, you don't need to download it_

_Note 2: The create command will create raspberry pi rootfs in the rootfs directory using the downloaded img file. s/w packages are updated by 'apt update' and necessary s/w packages will be installed also, so it takes a lot of time depending on network speed._
_Note 2: The create command will create raspberry pi rootfs in the rootfs directory using the downloaded img file. s/w packages are updated by 'apt update' and necessary s/w packages will be installed also, so it takes a lot of time depending on network speed._

If you are already using Raspberry PI, there is a way to use rsync on your Raspberry PI rather than the above. See the rpi_rootfs repo.

Expand All @@ -105,15 +107,16 @@ If you are already using Raspberry PI, there is a way to use rsync on your Raspb
sudo apt install ant autoconf bison cmake gawk intltool xutils-dev xsltproc pkg-config # note 1
cd ~/Workspace/webrtc/src
mkdir out/arm_build
cp ~/Workspace/rpi-webrtc-stremer/misc/webrtc_arm_build_args.gn out/arm_build/args.gn # note 2
cp ~/Workspace/rpi-webrtc-streamer/misc/webrtc_arm_build_args.gn out/arm_build/args.gn # note 2
gn gen out/arm_build
ninja -C out/arm_build

mkdir out/armv6_build # note 3
cp ~/Workspace/rpi-webrtc-stremer/misc/webrtc_armv6_build_args.gn out/armv6_build/args.gn # note 2
cp ~/Workspace/rpi-webrtc-streamer/misc/webrtc_armv6_build_args.gn out/armv6_build/args.gn # note 2
gn gen out/armv6_build
ninja -C out/armv6_build
```

_note 1 : S/W package required to compile WebRTC native code package in Ubuntu._

_note 2 : webrtc_arm_build_args.gn is the args.gn config file for armv7 and above, and webrtc_armv6_build_args.gn is for Raspberry Pi Zero W and armv6._
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