Mplayer

From ArmadeusWiki
Revision as of 13:22, 23 February 2010 by JulienB (Talk | contribs) (Converting videos)

Jump to: navigation, search

Introduction

Every Armadeus APF modules are capable of playing small MPEG videos with the help of the great Mplayer tool. It was successfully tested with 320x240 and 480x272 LCDs. Mplayer is using the Linux Framebuffer to display the videos.
It is also possible to play audio files or webcast with this tool.

Installation

  • Activate mplayer package in Buildroot configuration:
[armadeus]$ make menuconfig

Menuconfig package.png

Menuconfig package graphics.png

Menuconfig package mplayer.png

  • save your configuration and then build it:
[armadeus]$ make
  • finally reflash your rootfs

Usage

  • Play a Fullscreen (centered) video with no sound:
# mplayer -fs -nosound video.mpg
  • Play an audio webcast:
# mplayer -ao alsa -cache 128 -vc dummy -vo null http://live.radio-.....

Troubleshots

Converting videos

To convert your videos to fit the board's LCD format, you can use ffmpeg on your PC:

$ sudo apt-get install ffmpeg
  • To show current video format:
 $ ffmpeg -i my_video.mpg
 FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
 .......
 Input #0, mpeg, from 'my_video.mpg':
  Duration: 00:00:01.7, start: 0.220000, bitrate: 2522 kb/s
  Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 352x288, 1150 kb/s, 25.00 fps(r)
  Stream #0.1[0x1c0]: Audio: mp2, 44100 Hz, stereo, 224 kb/s
 Must supply at least one output file
  • To convert it to 320x240 format:
$ ffmpeg -i my_video.mpg -s 320x240 my_video_320x240.mpg

Links