Nice to Know

Codecs can be installed directly from the Movie Player. When Movie Player recognizes a format it cannot play, it checks if a Gstreamer plugin is available for this format. If it finds one, you can install the codec easily without following the lengthy solution presented below.

To install a codec plugin using Synaptic Package Manager:

1. On the System menu, point to Administration and then click Synaptic Package Manager. The Synaptic Package Manager window opens.

Figure 9.40: Launching Synaptic Package Manager

2. The Multiverse and Restricted repositories are not activated by default in Ubuntu. To install the additional multimedia codecs, you need to first activate these repositories. On the Settings menu, click Repositories. The Software Sources dialogue box is displayed.

Figure 9.41: Displaying Software Sources

3. To enable the Multiverse and Restricted repositories, select the third and fourth check boxes available on the Ubuntu Software tabbed page, and click Close to exit the dialogue box.

Ubuntu Software | Third Party Software [ Updates | Authentication | Statistics

Downloadable from the Internet

Canonical supported Open Source software (main) 0] Community maintained Open Source software (universe)

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Figure 9.42: Enabling Repositories

4. You may receive a notification that your repository information has changed. Click Close to exit this message.

Figure 9.43: Repositories Information Notification

5. Once you return to the Synaptic Package Manager window, you are required to click the Reload button to apply your changes.

File Edit Package Settings Help

Reload

Mark All Upgrades

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Mark All Upgrades

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0 packages listed, 1140 installed, 0 broken. 0 to install/upgrade, 0 to r

0 packages listed, 1140 installed, 0 broken. 0 to install/upgrade, 0 to r

Figure 9.44: Applying Changes 6. On clicking the Reload button, the system starts checking the repositories for new, removed or upgraded software packages.

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The repositories will be checked for new, removed

Figure 9.45: Checking Package Information

7. After the Multiverse and Restricted repositories are added in the Ubuntu software sources, you can download and install additional multimedia codecs. To install a software package, you need to first locate the package in the Synaptic Package Manager window. You can either search for a specific software package manually or run a search using the search utility provided in the Synaptic Package Manager. To initiate a search for a specific package, click Search.

Figure 9.46: Initiating Software Search

8. In the Search field, enter the name of the software package that you are looking for. Click Search to begin the search.

Figure 9.47: Searching a Software Package

9. The search results are displayed in the right pane of the Synaptic package Manager window. Right-click the package to be installed and select Mark for Installation.

Figure 9.48: Marking Packages for Installation

10. You can mark multiple packages for installation by following the same procedure. Once all the required packages are marked, click Apply to start downloading the packages. The Summary dialogue box is displayed.

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GStreamer plugins from the "ugly" set

GStreamer is a streaming media framework, based on graphs of filters which operate on media data. Applications using this library can do anything from real-time sound processing to playing videos, and just about anything else media-related, Its plugin-based architecture means that new data types or processing capabilities can be added simply by installing new plug-ins.

5 packages listed, 1139 installed. 0 broken. 1 to install/upgrade, 0 to remove; 618 kB will be used

Figure 9.49: Initiating Package Download

11. The Summary dialogue box allows you to take a last look at all the software packages that you have marked for installation. To go ahead with the marked installations, click Apply.

Figure 9.50: Conforming Package Installation

12. After all the marked software packages are downloaded and installed, the Changes Applied dialogue box is displayed. Click Close to exit the Changes Applied dialogue box.

Figure 9.51: Changes Applied Notification

13. The check box corresponding to the recently installed software package has changed to green, indicating that the software has been installed successfully. You can repeat the same procedure to install all the multimedia codecs required for playing proprietary multimedia formats.

Figure 9.52: Software Successfully Installed

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