Search results matching tag 'compression'

Unable to use Compressor- Quicktime needs Avid Codecs?

drxtrinity — Fri, 11 Sep 2009 18:35:08 GMT

Hello, I am trying to use FCP Compressor (version 3.0.1) to compress a Quicktime file exported using Avid Express Pro 5.8.4. I am unable to see video (but hear audio) when I open the Quicktime using Quicktime Pro (version 7.6.4) therefore being unable to use Compressor. What I am wondering is if the reason it is not playing on this computer is because there are Avid Codecs on the export that this version of Quicktime is not able to read? And if so, is there a program that I can download that will give Quicktime the Codecs it needs to be able to read the file. I am assuming the other option is to export without the Avid Codecs, but I really want to figure this out so that I can play any file on this computer. Any help or suggestions is very much appreciated!

Hardware Overview:

Mac OSX 10.4.11

Model Identifier: MacBook2,1

Processor Name: Intel Core 2 Duo

Processor Speed: 2 GHz

Number Of Processors: 1

Total Number Of Cores: 2

L2 Cache (per processor): 4 MB

Memory: 1 GB

Bus Speed: 667 MHz

Mega Time-Saver: The Compression Preview Tool

cobyrich — Thu, 30 Jul 2009 22:44:22 GMT

The biggest complaint that I had when searching for the "exact right" compression settings is the time that it took to encode a file, over and over again, once I had modified the settings or tried a new codec. Well, this headache can be virtually eliminated with the Compression Preview Tool in Squeeze. This relatively obscure tool is found directly under the beginning of the timeline in the preview window.

To create a compression preview I must first import a file, apply an audience preset and make any changes in the preset as needed. Next, I need to place the play head in the timeline of the file where I would like to see the preview. Using the pull down arrow on the right I can choose a specific time period between one and five seconds that I would like to encode. Once the time is chosen Squeeze shows me the time of the video that it will encode.

Lastly, I just click the play icon next to the drop down and Squeeze creates the preview and launches it in my default player. This tool is particularly useful when I'm choosing the best codec or data rate to use, and especially when I'm working with long form video. The preview gives me a good idea how my final compressed output will look, without taking the time to encode the entire video. This way I can add filters, change data rates, switch codec and tweak the settings to my hearts content until I am completely satisfied with the look of my video.

Making a DVD from a Quicktime

jfilm — Tue, 14 Jul 2009 02:37:59 GMT

Hi, I am trying to make a normal DVD that will play on a regular DVD player from

a quicktime made from a sequence in Avid Media Composer, 3.0. I've tried several

different settings, and they all produce DVDs that work on my laptop and computer,

but they will not play smoothly on my TV. There are stops and starts, picture break-up,

etc. Does anyone have some tips on what settings to use to make a normal DVD? I'm

using Toast 8. Thanks.

DVcpro50 whit 1.1 compresion

escudero — Fri, 29 May 2009 08:28:30 GMT

Helo! muy english is so bad.

I have a problem. I captured a dvcpro 50 media in 1.1 codec (no compresion) but y have a problem with the fields ¿why?

My proyect is interlaced. when I tray to export whith lower, it fliket.

I try to export in upper too but it same as lower problem.

The desinterlace fx aren´t like I found

¿What happend?

I have a media composer 3.5 whith avid mojo sdi

Thanks

From Avid Media Composer to DVD in easy steps

Gressy — Mon, 03 Nov 2008 20:53:50 GMT

This is a description of one easy way I like to work using Avid Media Composer, Sorenson Squeeze and DVDitPro to author a DVD.

Converting Slides to Streaming Video

Adam Kranitz — Fri, 10 Oct 2008 17:15:29 GMT

Converting Slides to Streaming Video
By Michael Kennedy, Squeeze Expert User
Reprinted from Sorenson Media October 2008 Newsletter

I am often presented with PowerPoint slides that I want to stream as a video. The best and fastest method for converting a PowerPoint presentation into a streaming video presentation is to use Squeeze. I use this method:

1) Simply convert the PowerPoint presentation into a graphic file, such as a jpeg ("Save as" from within PowerPoint);

2) Import all the PowerPoint slides into a video editing software application;

3) Import any audio files that are part of the presentation into the video editing software application;

4) Sync each PowerPoint slide and any audio;

5) Export this new clip as a raw video file;

6) Import this raw video file into Squeeze, and use Squeeze's wmv settings to make the compressed wmv file;

7) Lastly I upload the compressed wmv file into the streaming server and I have a streaming PowerPoint presentation in relatively short time.

So, the next time you are offered, "I have a PowerPoint," rather than ignore the comment, or say, "Ummm, I really don't care for PowerPoint presentations"; you can smile and say, "Great, I may use it as I put your presentation together."

Re: deep techie question

mBlaze — Fri, 10 Oct 2008 13:19:32 GMT

It only recompresses it if you add another composite layer before doing the mixdown. The same is true with a submaster effect - if you drop it over a master clip and do a render, it should just copy the media of the master clip into the submaster render.

Re: deep techie question

Chad — Thu, 09 Oct 2008 23:49:41 GMT

I'm pretty sure it 'copies' it. I did some difference matte tests in Photoshop a while ago to try and answer this very question, and the mixed-down and unmixed-down frames were identical (at least visually)

Anecdotally, the speed of mixing down rendered vs. unrendered effects would also support this conclusion - but I guess we'd need an Avid developer to see this thread before we get a definitive answer.

Uploading High Quality Video: For YouTube

malefunktion — Wed, 24 Sep 2008 18:53:46 GMT

This is a guide for getting high quality material from your Avid timeline, into MPEG Streamclip and then finally on to YouTube so that you can make use of their recent "High Quality" feature.

It is my first ever video tutorial and runs for 18mins encompassing the whole process.

Take the time to pause the guide when asked, and read the slides/stills prior to the video section. They do contain relevant information.

Encoding High Quality Video: For YouTube

malefunktion — Wed, 24 Sep 2008 17:33:53 GMT

This is a guide for getting high quality material from your Avid timeline, into MPEG Streamclip and then finally on to YouTube so that you can make use of their "Watch In High Quality" feature.

Take the time to pause the guide and read each of the slides/stills prior to the video section as they do contain relevant information.

Addendum/Update (27-11-08):

Widescreen YouTube?

YouTube have recently introduced a 16:9 video player on their pages. This has brought a couple of pros and cons.

The main advantage is that native 16:9 material (640x360 / 854x480 etc...) now looks much better without letterboxing. Also, 16:9 material in 720p can now be uploaded and accessed as stated below.

The big disadvantage is that the "Watch in High Quality" link which worked brilliantly in the old 4:3 player, doesn't look all that great in the new 640x360 frame.

Videos uploaded in appropriate 640x360, 854x480, or 1024x576 sizes are compressed by YouTube down to 480x270 (which was fine in their old 480x360 player) and then resized during playback to fit the new 16:9 640x360 frame. This resizing process now blurs all encodes.

The only exception to this rule is if you upload 720p material 1280x720 with a good bitrate of around 5000Kb/s. If you upload this sort of file, you'll be able to access SUPER-CRISP 720p material by appending the video's URL link with &fmt=22.

Addendum/Update (25-11-08):

H264 vs MPEG4 Compressors & 720P HD?

You can safely use EITHER the Apple MPEG4 or H264 compressors to ensure the best possible visual quality you can manage (Adding now that you need to DE-SELECT B-Frames if using H264 compression).

It appears, as of 25-11-08 that YouTube now use a default 16:9 video player. This new player is a 640x360 size, so make sure any 16:9 material meets this resolution. 4:3 material retains its ratio but will pillarbox (and in some cases, letter box slightly below).

For adventurous types, you can upload 720p HD material and YouTube will recompress a 720p version (though not make it visually available by default as yet - you have to paste &fmt=22 into the video's URL).

Should you wish to "future proof" any HD material on YouTube, use these settings:

Compressor: H264 - Select Multipass & De-select B-Frames
Frame Size: 1280x720 (Better downscaling ON if sourcing from 1080i or 1080p footage)
Bitrate: Between 4000 & 6000Kb/s should work. (I've yet to confirm anything other than 5000Kb/s which I have tested.)

Uploading 720p suitable material direct to YouTube will ensure that any and all versions they currently create, will successfully be made, whilst preserving material for any future YouTube 720p default playback.

The Guide:

If the community video embedding feature is not working, you won't see the tutorial here. You will instead have to visit the dedicated Videos section to view it.

(Please visit the site to view this media)

You can also find the guide (split into two parts) on YouTube in *cough* High Quality - here.

You can also see examples of standard HQ YouTube material embedded in a personal web page - here.

You can also view a 720p HD YouTube video embedded in another personal web page - here.