Use a Cisco DME to Transcode Video

Transcription

1 14 CHAPTER Revised: May 31, 2011 Features on the Digital Media Encoders tab help you to transcode AVI and MPEG2 files into WMV files. This transcoding makes such video files compatible with and reuseable on your Cisco Show and Share site. Concepts, page 14-1 Procedures, page 14-2 Reference, page 14-4 Concepts Understand Transcoding Transcoding is a process of deriving digital media files that use one codec from digital media files that use a different codec; the source file is not changed or destroyed. Because codecs are typically lossy, you might notice that the fidelity of the transcoded output file is not as high as the fidelity of the source file. A transcoding job might take as long as, or possibly longer than, the duration of the source file, depending on multiple factors that include which codecs you use. 14-1

2 Procedures Chapter 14 Procedures Copy a Video File to Your DME for Transcoding, page 14-2 Copy Transcoded Video Output from Your DME, page 14-3 Copy a Video File to Your DME for Transcoding You can copy to your DME a video file that you will transcode through Cisco Show and Share. Procedure Step 1 Step 2 Step 3 Plug a keyboard, mouse, and monitor into your DME. Stage the source file for transcoding. a. Add the source file to a USB 2.0 hard drive or flash drive. b. Connect the USB drive to your DME. c. Use Windows Explorer on your DME to copy the source file from the USB drive to D:\AVFiles\In. Stop. You have completed this procedure. What to Do Next Would you like to transcode the source file now? See the Transcode a Video File section on page Copy Transcoded Video Output from Your DME, page 14-3 Transcode a Video File You can use your DME to transcode an AVI or MPEG2 video source file. Before You Begin Copy the source file to your encoder. Log in to Cisco Show and Share as an administrator. Tip We recommend that you schedule your transcoding jobs so that they do not run at the same time as any other encoder tasks, such as encoding live video or saving a live stream to a file. 14-2

3 Chapter 14 Procedures Procedure Step 1 Step 2 Choose Administration from the global navigation. Choose Setup > Digital Media Encoders > Transcoding. Step 3 Click Add a New Transcoding Task. Step 4 Step 5 Step 6 Enter or choose the required values to define the transcoding job. See UI Reference: Transcoding, page 14-4 for information about the transcoding task fields. Click Save. Stop. You have completed this procedure. What to Do Next Would you like to obtain a copy of your transcoded video, so you can upload it to Cisco Show and Share? See the Copy Transcoded Video Output from Your DME section on page Copy Transcoded Video Output from Your DME You can copy the output file from your DME after you transcode a video. Later, you can upload this file to Cisco Show and Share. Before You Begin Copy a video file to your DME for transcoding. Transcode the video. 14-3

4 Reference Chapter 14 Procedure Step 1 Do one of the following. Are you in the same room with your DME? Are you and your DME in separate locations? When you work with your DME directly a. Use the keyboard, mouse, and monitor that you attached to your encoder and open Windows Explorer. b. Copy the output file from D:\AVFiles\Out to the USB drive. When you work with your DME remotely a. Point your web browser to ftp://<encoder_ip_address>/avfiles/out. b. Right-click the filename in the directory listing. c. Choose the option to download the file. Step 2 Stop. You have completed this procedure. What to Do Next Would you like to upload this output file to Cisco Show and Share? See the User Guide for Cisco Show and Share 5.2.x on Cisco.com. Reference UI Reference: Transcoding Navigation Path Administration > Settings > Digital Media Encoders > Transcoding Table 14-1 Transcoding Page Element Transcoding Task Name Encoder Name Start Date/Time Description Enter a unique and meaningful name. Choose the encoder that will transcode the source file. Choose the date and time when the transcoding job should start. 14-4

5 Chapter 14 Reference Table 14-1 Element Transcoding Page (continued) Description Input Input Encoding Format Input File Name Input Directory Path Choose the media format that the source file uses (AVI or MPEG2). Enter the source filename. Do not include a path. Choose Input - Local Encoder Drive. Use these buttons, as needed: Edit Modifies the input directory path. Clone Copies the input directory path so that you can modify and add it to the list. Add a Path Adds a new input directory path to the list. Output Output Encoding Format Output Directory Path Output File Name Choose a format that includes the word transcode in its title. Choose Output - Local Encoder Drive. Enter the output filename, which must use WMV as its extension. Do not include a path. Color-code Reference for the Status of a Transcoding Job In the list of transcoding tasks, a color-coded icon next to a task s name helps you to track its status. The icon color is: Blue, when trancoding is scheduled or postponed. Animated green, when transcoding is in progress. Solid green, when transcoding is completed. Red, when an error has interfered with transcoding. Tip To learn more, mouseover the icon. 14-5

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