Results tagged “Compression” from Final Cut Studio, Avid, Adobe, and Video Streaming

Downloadable Streaming with Sorenson Squeeze and Dreamweaver is very common.  Today we'll show you how to encode a Real Media video with Sorenson Squeeze and then author that video in Dreamweaver with a RAM file.  RAM files are beneficial to use because you can hide the absolute path to the video file on your Server.  Let's begin. 



Open up Sorenson Squeeze and click the Import File button to bring your source files into Squeeze.



When you click the Import File button you'll see a dialog window open up. Select your file and click the open button.  For this tutorial I'll select the Step10DraggingaPreset.mov file and click the Open button. 

If you're looking to improve your video and audio compression workflows Sorenson Squeeze is a tool that you need to have in your arsenal.  It's amazing for improving your encoding workflows.  Sorenson Media's Squeeze has been an extremely important tool in the compression space for quite some time and it's worth the investment.  It'll save you plenty of time in the long run.

Streaming Media East happens May 12-13, 2009 in New York City and here are some of the Pre-Conference Workshops that they'll have right before the big conference. These workshops are among the most exciting and important topics related to streaming and compression.   The Streaming Media East Pre-Conference Workshops take place on May 11, 2009. If you have time in May you should try to make it to the event.

Envivio Inc., the leading provider of IP video convergence encoding solutions from mobile to HD, launches a new Mobile Streaming Trade-Up Program aimed at helping companies who pioneered mobile video streaming deliver more successful mobile TV services. From now through May 31, 2009, Envivio is offering discounts of up to 35 percent to mobile operators, content aggregators and others who replace their existing software video encoders, such as Helix Mobile Producer and pvAuthor, with the award-winning Envivio 4Caster C4 hardware encoding platform.

Inlet Technologies, the leader in advanced encoding solutions for new media, announced today that Matt Smith has joined its team of experts as senior director, systems architecture. Smith brings more than 15 years of experience, uniquely combining a traditional broadcast background with new digital media solutions expertise. He will draw on that experience to help Inlet customers create and/or expand their digital media business.

Wow! There are so many users of Sorenson Squeeze including Actor and Comedian Sinbad.  He stopped by the Sorenson Squeeze booth during this year's MacWorld. Hear what Sinbad had to say about Squeeze.  He talked to Squeeze Marketing Manager Coby Rich about his love for the application.  

You can find more compression settings articles in our Supercharging Compressor series index.

Note: There's something about me and GOP articles ... just as I did on the first part of this article, I seem to have accidentally published a blank draft a few hours ago.  This is the finished version.  My apologies.

Compressor, like most reasonably advanced MPEG2 compression tools, offers you some control over the size and structure of your GOPs.  You'll recall from the first part of this article that 15-frame (1/2-second) GOPs are the norm for MPEG-2 video, and this is appropriate for a wide range of video types.  Similarly, Compressor defaults to using a lot of "B"-frames -- those are the frames that take the least information to represent, but that depend most heavily on neighboring frames of video.

Read on for situations when you might want to change this around ...

One of the new features in Sorenson Squeeze 5 is you have the ability to set a Default Filter to be applied to all your compression jobs.  This works well for scenarios where you know you're going to be using a particular compression filter over and over.



To set your Default Filter go into the Squeeze Preferences by selecting the Squeeze Pull-down menu.  Then, select the Preferences option.

You can find more compression settings articles in our Supercharging Compressor series index.

You can be plenty good at video work if you only know that bigger bitrates are usually better -- but if you're going to be a guru when it comes to the quality of your video output, it's worth taking a closer look at the concept from the ground up.

Luckily, it's a fairly simple concept.  Let's take NTSC video as our example: 30 frames per second, each 720 pixels wide and about 480 high.  Each broadcast-safe pixel, in RGB space, could take up 235 values for each color (red green and blue), so it needs 24 bits of information to describe it.  If we were to try to store a second of NTSC-type video completely uncompressed using this bitmap scheme, we would need

30 * 720 * 480 * 24 = 248,832,000 bits, or about 30MB -- per second!

Try slapping THAT on YouTube -- or a DVD, for that matter.

As you're laying down multiple streams of subtitles or audio to your Track View in DVD Studio Pro, notice those little drop-down menus to the left of the tracks. These allow you to set the ISO language code for the track. If you're doing any sort of multilingual work, you should be sure to use them.

Have you ever wondered how much space is required for DV, HDV or HD media?  This can be a tricky question, because DV and HD is based on a fixed compression scheme and HDV is based on variable MPEG compression.

Keep in mind that HDV offers approximately 3 times better quality that DV.

DV uses 3.5 MB/sec

HDV uses 3.3 MB/sec

DVCPro HD (1080i 60) uses 13.9 MB/sec

So how is it possible that HDV uses less space than DV?  Well, this isn't always true, because it depends on the footage you are compressing.  HDV uses MPEG compression which is a variable compression format.  In general HDV takes up a smaller footprint than DV.  I find this to be quite amazing.  There are some drawbacks in that HDV requires a lot more processor power and longer render times than standard DV. 

Remember, this file size of HDV depends on the complexity of the footage. 

 

 

 

If you plan on working with full HD, notice the file size is roughly 4 times the size of DV or HDV.  That's a lot of bandwidth.  If you plan on working in full HD, make sure you have a high-speed drive array with a lot of storage.