GStreamer

overview

​ gstreamer是一个支持Windows，Linux，Android， iOS的跨平台的多媒体框架。

​ 本文和后续关于gstreamer的开发环境（只针对ubuntu，其他平台参考官方文档）：

​ ubuntu20.04.1 focal

API

​ GstBus (gstreamer.freedesktop.org)

安装环境

官方安装教程：Installing on Linux (gstreamer.freedesktop.org)

需要注意的是有一些linux版本安装所需要的环境很麻烦：

​ ubuntu20.04.1 focal使用对应的阿里云镜像安装是没有问题的。

​ ubuntu20.04.1 focal对应版本镜像：

​ https://mirrors.aliyun.com/oldubuntu-releases/releases/20.04.1/ubuntu-20.04.1-desktop-amd64.iso?spm=a2c6h.25603864.0.0.12387d9fkQdN6m

​ ubuntu20.04.1 focal对应版本的镜像源：

deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

# deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

安装需要的包

​ 需要root权限。

apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio

tutorial

git clone https://gitlab.freedesktop.org/gstreamer/gstreamer

（这个仓库访问不稳定建议保存备份）

在文件夹中找到tutorial（这是例程的文件夹）

./subprojects/gst-docs/examples/tutorials/basic-tutorial-1.c