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前言

以前一直在MPP上开发硬解码推理，最近想弄一个盒子支持调用mpp硬解码播放视频的。我使用的盒子是firefly的rk3399，这个板子的cpu说强也不强，说弱也不算太弱。

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一、cpu解码

为了对比先使用cpu解码，最典型的就是随便用一个播放器即可，比如vlc。

这个占用太大了吧，不要说4K了，就算1080p也差点顶不住。

二、gstreamer+mpp

firefly的系统还是可以的，基本上不需要安装什么软件，默认完整版系统都自带了。

1.默认已安装

这个默认你已经安装了所有必要的软件。

gst-play-1.0 --flags=3 --videosink="fpsdisplaysink video-sink=xvimagesink signal-fps-measurements=true text-overlay=false sync=true" <视频文件>

单看gst明显小太多了，说明调用了硬件解码器（mpp）。

2.没安装必要软件

firefly默认是安装了软件的，其它的系统安装就复杂些。参考我的安装就行了。

ii  gir1.2-gstreamer-1.0:arm64           1.14.5-0ubuntu1~18.04.1firefly1        arm64        GObject introspection data for the GStreamer library
ii  gstreamer1.0-alsa:arm64              1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugin for ALSA
ii  gstreamer1.0-doc                     1.14.5-0ubuntu1~18.04.1firefly1        all          GStreamer core documentation and manuals
ii  gstreamer1.0-gl:arm64                1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugins for GL
ii  gstreamer1.0-gtk3:arm64              1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugin for GTK+3
ii  gstreamer1.0-libav:arm64             1.14.5-0ubuntu1~18.04.1firefly1        arm64        libav plugin for GStreamer
ii  gstreamer1.0-pipewire:arm64          0.2.7-1firefly1                        arm64        GStreamer 1.0 plugin for the PipeWire multimedia server
ii  gstreamer1.0-plugins-bad:arm64       1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugins from the "bad" set
ii  gstreamer1.0-plugins-base:arm64      1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugins from the "base" set
ii  gstreamer1.0-plugins-base-apps       1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer helper programs from the "base" set
ii  gstreamer1.0-plugins-base-doc        1.14.5-0ubuntu1~18.04.1firefly2        all          GStreamer documentation for plugins from the "base" set
ii  gstreamer1.0-plugins-good:arm64      1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugins from the "good" set
ii  gstreamer1.0-plugins-ugly:arm64      1.14.5-0ubuntu1~18.04.1                arm64        GStreamer plugins from the "ugly" set
ii  gstreamer1.0-pulseaudio:arm64        1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugin for PulseAudio
ii  gstreamer1.0-rockchip1               1.14.2firefly3                         arm64        The Gstreamer plugins for Rockchip RK3xxx platform.
ii  gstreamer1.0-tools                   1.14.5-0ubuntu1~18.04.1firefly1        arm64        Tools for use with GStreamer
ii  gstreamer1.0-vaapi:arm64             1.14.5-0ubuntu1~ubuntu18.04.1          arm64        VA-API plugins for GStreamer
ii  gstreamer1.0-x:arm64                 1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer plugins for X11 and Pango
ii  libgstreamer-gl1.0-0:arm64           1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer GL libraries
ii  libgstreamer-opencv1.0-0:arm64       1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer OpenCV libraries
ii  libgstreamer-plugins-bad1.0-0:arm64  1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer libraries from the "bad" set
ii  libgstreamer-plugins-base1.0-0:arm64 1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer libraries from the "base" set
ii  libgstreamer-plugins-good1.0-0:arm64 1.14.5-0ubuntu1~18.04.1firefly2        arm64        GStreamer development files for libraries from the "good" set
ii  libgstreamer1.0-0:arm64              1.14.5-0ubuntu1~18.04.1firefly1        arm64        Core GStreamer libraries and elements
ii  libgstreamer1.0-dev:arm64            1.14.5-0ubuntu1~18.04.1firefly1        arm64        GStreamer core development files

总结

1、目前实现了视频播放，接下来研究chrome硬解码和播放器硬解码