GStreamer: Difference between revisions
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<div style="background:#99cc55; color:white; padding:4px;">This section describes third-party software that does not meet the [[OLPC_on_open_source_software|OLPC standards for software freedom]]. The use of such software is unsupported; OLPC does not endorse or encourage its use.</div> |
<div style="background:#99cc55; color:white; padding:4px;">This section describes third-party software that does not meet the [[OLPC_on_open_source_software|OLPC standards for software freedom]]. The use of such software is unsupported; OLPC does not endorse or encourage its use.</div> |
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Some codecs can be [[OS_Builder/ |
Some codecs can be [[OS_Builder/Add_Restricted|added during build]]. Adding during build is the method supported by OLPC, because it works with our operating system {{Code|[[olpc-update|olpc-update]]}} feature. |
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Some codecs are ''not'' included in OLPC OS, because of restrictions on redistribution. But they can be added after install. Such changes are lost on {{Code|[[olpc-update|olpc-update]]}}. |
Some codecs are ''not'' included in OLPC OS, because of restrictions on redistribution. But they can be added after install. Such changes are lost on {{Code|[[olpc-update|olpc-update]]}}. |
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When the prompt reappears, with "Complete!" above the prompt, it is ready to use. You may need to restart any activity using GStreamer, once. |
When the prompt reappears, with "Complete!" above the prompt, it is ready to use. You may need to restart any activity using GStreamer, once. |
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These instructions have been tested for releases 10.1.2, 12.1.0, 13.2.0 and 14.1.0. |
These instructions have been tested for releases 10.1.2, 12.1.0, 13.2.0, 13.2.1, 13.2.2, 13.2.3 and 14.1.0. |
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For more information, see: |
For more information, see: |
Revision as of 04:34, 13 April 2015
GStreamer is our multimedia framework library.
Introduction
GStreamer is a library that supports multimedia, ranging from playback to complex mixing and processing.
- The Totem plugin uses GStreamer to play multimedia URLs in the Browse activity.
- The Record activity uses GStreamer to deal with streams from the camera and microphone.
Adding codecs
Some codecs can be added during build. Adding during build is the method supported by OLPC, because it works with our operating system olpc-update feature.
Some codecs are not included in OLPC OS, because of restrictions on redistribution. But they can be added after install. Such changes are lost on olpc-update.
To add after install, on the XO laptop, start Terminal and paste this compound command:
sudo yum localinstall -y \ http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm \ http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm && \ sudo yum install -y gstreamer{1,}-plugins-ugly gstreamer-plugins-bad gstreamer-ffmpeg
When the prompt reappears, with "Complete!" above the prompt, it is ready to use. You may need to restart any activity using GStreamer, once.
These instructions have been tested for releases 10.1.2, 12.1.0, 13.2.0, 13.2.1, 13.2.2, 13.2.3 and 14.1.0.
For more information, see:
- http://www.fedorafaq.org/#yumconf
- http://www.fedorafaq.org/#mp3
- http://rpmfusion.org/FAQ
- http://rpmfusion.org/Configuration (the basis for these instructions)
Test cases for Browse activity:
Adding codecs using xo-custom or other scripting
On a laptop of the same architecture as the target, download the required packages:
mkdir gs cd gs sudo yum install -y yum-utils sudo yum localinstall -y --nogpgcheck \ http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm \ http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm yumdownloader --resolve gstreamer{1,}-plugins-ugly gstreamer-plugins-bad gstreamer-ffmpeg
Copy the packages. On the target laptops, install the packages using RPM.
Last tested 2014-01-21 on XO-1.75 with 13.2.0.
Developers
See GStreamer/Developers.