Compiling GStreamer 1 for OpenWRT on RK3568 Platform

2025-10-21

• To utilize the RKMMP hardware decoding feature on the OpenWRT system for the RK3568 platform, we will use the customized GStreamer 1 source code from the RK3568 Buildroot SDK to cross-compile the relevant components of GStreamer 1, aiming to adapt it for the OpenWRT target board. The compilation process is for reference only.

Source Code Acquisition

The source code is from the patched GStreamer 1 source package in the RK3568 Buildroot SDK, located at:

#1. gst1
/home/test/rk356x/buildroot/output/rockchip_rk3568/build/gstreamer1-1.20.3

Creating cross_file

Cross-compile GStreamer 1 based on Ninja.

# Modify the compilation options and create the cross_file.txt file with the following content
# Note: Buildroot's and Meson's terminologies differ about the meaning
# of 'build', 'host' and 'target':
# - Buildroot's 'host' is Meson's 'build'
# - Buildroot's 'target' is Meson's 'host'

[binaries]
c = 'aarch64-openwrt-linux-gcc'
cpp = 'aarch64-openwrt-linux-g++'
ar = 'aarch64-openwrt-linux-ar'
strip = 'aarch64-openwrt-linux-strip'
pkgconfig = '/home/test/friendlywrt22-rk3568/test/staging_dir/host/bin/pkg-config'

[built-in options]
c_args = ['-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-Os']
c_link_args = []
cpp_args = ['-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-Os']
cpp_link_args = []
wrap_mode = 'nodownload'

[properties]
needs_exe_wrapper = true
sys_root = '/home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/root-rockchip'
pkg_config_libdir = '/home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/lib/pkgconfig:/home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/lib/pkgconfig'
pkg_config_static = 'false'

[host_machine]
system = 'linux'
cpu_family = 'aarch64'
cpu = 'cortex-a55'
endian = 'little'

export STAGING_DIR=/home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl
export STAGING_DIR_HOST=/home/test/friendlywrt22-rk3568/test/staging_dir/host
export PATH=$PATH:/home/test/friendlywrt22-rk3568/test/staging_dir/toolchain-aarch64_generic_gcc-11.3.0_musl/bin/
mkdir build
cd build
meson --prefix=$(pwd)/../install  --cross-file=../cross_file.txt 
cd ../
ninja -C build install

Configuration and Compilation Issues

Run-time dependency glib-2.0 found: NO (tried pkgconfig and cmake)

# Configuration Issue 1: Missing glibc
Run-time dependency glib-2.0 found: NO (tried pkgconfig and cmake)
Looking for a fallback subproject for the dependency glib-2.0

../meson.build:488:0: ERROR: Neither a subproject directory nor a glib.wrap file was found.

Solution:

# Solution: In cross_file.txt, set pkgconfig and also add the environment variable STAGING_DIR_HOST
pkgconfig = '/home/test/friendlywrt22-rk3568/test/staging_dir/host/bin/pkg-config'

Compilation Issue: ./gst/printf/gst-printf.h:23:10: fatal error: glib.h: No such file or directory

# Compilation Issue 1:
aarch64-openwrt-linux-gcc: warning: environment variable 'STAGING_DIR' not defined
cc1: warning: /include/glib-2.0: No such file or directory [-Wmissing-include-dirs]
cc1: warning: /lib/glib-2.0/include: No such file or directory [-Wmissing-include-dirs]
cc1: warning: /include: No such file or directory [-Wmissing-include-dirs]
In file included from ../gst/printf/printf-args.c:23:
../gst/printf/gst-printf.h:23:10: fatal error: glib.h: No such file or directory
   23 | #include &lt;glib.h&gt;

Solution: Search for the header file and copy it to the corresponding directory.

# Solution: In the directory where glib2-0 is located, execute
cp glib2-0/* ./

Runtime Issues and Solutions

No such element or plugin ‘xvimagesink’

# After compilation, run the test
root@test:~/install/bin# gst-inspect-1.0 xvimagesink
No such element or plugin 'xvimagesink'

Compile gst1-plugins-base-1.20.3

#3. First compile gst1-plugins-base-1.20.3, before compiling, install gstream1
root@test:/home/test/tool/gst/gst1-plugins-base-1.20.3#cp  ../gstreamer1-1.20.3/install/* /home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/ -r

## Configuration
root@test:/home/test/tool/gst/gst1-plugins-base-1.20.3/build# meson --prefix=$(pwd)/../install  --cross-file=../cross_file.txt 

## Compilation Error 1
In file included from ../ext/opus/gstopusdec.c:52:
../ext/opus/gstopusdec.h:27:10: fatal error: opus_multistream.h: No such file or directory
   27 | #include &lt;opus_multistream.h&gt;
      |          ^~~~~~~~~~~~~~~~~~~~
## Disable opus
root@test:/home/test/tool/gst/gst1-plugins-base-1.20.3/build# meson --prefix=$(pwd)/../install  --cross-file=../cross_file.txt  -Dopus=disabled --reconfigure
cd ../
ninja -C build install

## Compilation Error 2, copy from include\gio-unix-2.0\gio to include/gio/
../tests/check/pipelines/tcp.c:31:10: fatal error: gio/gunixfdmessage.h: No such file or directory
   31 | #include &lt;gio/gunixfdmessage.h&gt;
      |          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

## Compilation completed, installed to staging_dir
root@test:/home/test/tool/gst/gst1-plugins-base-1.20.3# cp install/*  /home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/ -r

#4. Install linuxrga : 
meson --prefix=$(pwd)/../install  --cross-file=../../cross_file.txt
/home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/include/sys/ 
   64 | # if __GNUC_PREREQ (4, 6) &amp;&amp; !defined _LIBC

#2.  gst-rk, 

root@test:/home/test/tool/gst/gstreamer1-rockchip-master#
export STAGING_DIR=/home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl
export STAGING_DIR_HOST=/home/test/friendlywrt22-rk3568/test/staging_dir/host
export PATH=$PATH:/home/test/friendlywrt22-rk3568/test/staging_dir/toolchain-aarch64_generic_gcc-11.3.0_musl/bin/
mkdir build
cd build
meson --prefix=$(pwd)/../install  --cross-file=../cross_file.txt 
cd ../
ninja -C build install

# Install to staging dir
root@test:/home/test/tool/gst/gstreamer1-rockchip-master# cp  install/lib/gstreamer-1.0/libgstrockchipmpp.so  /home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/lib/
root@test:/home/test/tool/gst/gstreamer1-rockchip-master# 

#5. Install interpipe
root@test:/home/test/tool/gst/gst1-interpipe-v1.1.8/build# meson --prefix=$(pwd)/../install  --cross-file=../../cross_file.txt

## Configuration Error 
Program gtkdoc-scan found: NO

../docs/plugins/meson.build:18:6: ERROR: Program 'gtkdoc-scan' not found or not executable

## Modify vim ../meson_options.txt, disable gtk-doc
option('enable-gtk-doc', type : 'boolean', value : false, description : 'Use gtk-doc to build documentation')

## Install to staging dir
root@test:/home/test/tool/gst/gst1-interpipe-v1.1.8# cp install/lib/gstreamer-1.0/libgstinterpipe.so  /home/test/friendlywrt22-rk3568/test/staging_dir/target-aarch64_generic_musl/usr/lib/
root@test:/home/test/tool/gst/gst1-interpipe-v1.1.8#

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