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Posts Tagged ‘AVI’

Converting SD recording to AVI

September 18th, 2011 6 comments

Well, now that you’ve recorded a load of programmes, movies, and Strictly Come Dancing! what are you going to do when you are running out of recording space? Well, some PVRs have the autodelete option, but to keep the recordings you don’t want to delete you will have to convert them to a compressed format.

Using AVS Video Convertor (download a trial copy here), you can do this with ease. First you need to export your recording to an external drive or transfer it to your computer. With access to the .ts file you can drag and drop it into ‘Input File Name’ text box of AVS Video Convertor:

Click on the Format tab, if you are not there already, and click on the To AVI icon. Now, if the recording is from a commercial channel, you might wish to edit these out. This is simply done via the Editor, click on the EDIT icon.

Move the down arrow with the separation line to the spot at the start of the advert section you wish to remove, then click on the Trim Start button (top middle section). Then move to the end of this ‘trim’ section and click on the Trim End button. If finding the start or end frame tricky, you can ‘zoom’ in by sliding the zoom bar, so that you have a better editting accuracy with the arrow/separation maker.

After marking out all the adverts, zoom out to see the pattern and check that you’ve not missed a section.

Once you’ve satisfied that you’ve marked all the adverts, select each marked area and click on the ‘Delete Object’ icon to remove the ads. Do this until all the marked objects are gone.

Click OK to close the Edit screen and go back to the main screen. Click on the Advanced >> button to get the Conversion Options full screen. In the Output File section, pull the drop down menu for the Vide Codec, select DivX MPEG-4 or XviD MPEG-4 Codec. Now, click on Convert!

Click on << Advanced button to minimise AVS Video Convertor:

At the bottom of this window, it displays the conversion progress…

This recording of The Transporter 3 movie (unedited), compressed down to  1.4GB from an initial size of 2.5GB, from .ts to Xvid MPEG-4 Codec AVI, from an initial 2.5GB file.

Try it out and Purchase License now!

With AVS Video Convertor, you can select multiple recordings to batch process all in one go! This software is an expensive tool and if you purchase an unlimited license for £35 using this link, not only do you get to use ALL AVS tools but you will support these blog posts on mine!

Convert recordings to AVI and MKV media formats

August 21st, 2011 1 comment

What are AVIs and MKVs?
AVIs and MKVs are media container formats used for video playback on computers, and nowadays, spreading to CE devices such as the Humax HDR-FOX T2.

AVI stands for Audio Video Interleave and is a Microsoft video container. There are many video codecs found within the AVI container, but the most popular is DivX and Xvid.

MKV is the Matroska multimedia container and is an opensource universal format for multimedia. Although it can contain virtually any video codec within, it is commonly used to store high definition video format such as H.264/AVC.

What media formats does the HDR-FOX T2 support?
Humax have provided 3rd party media playback on their two latest boxes the HD-FOX T2 and HDR-FOX T2, but they haven’t really documented what codecs are supported except Xvid. Even more disappointingly so, Humax haven’t made any effort on keeping the aspect ratio of the video and most are stretched to fill whatever picture setting your PVR is set to.

However, the two container formats (and extensions) I am talking about here, AVI and MKV are certainly recognised. Although, what codecs within these two are playable is certainly up for guess. Do not worry though, I will document each extension and codec supported on these two Humax devices on the MyHumax Wiki on the Media Playback page.

Why convert recordings to AVI or MKV formats?
Most if not all PVRs or digital recorders that record direct to hard disk will capture raw broadcasts to plain transport stream or BDAV MPEG-2 Transport Stream container file format. This is an uncompressed format so will result in large file sizes – especially HD broadcasts. Converting to compressed formats will reduce the storage size of the recording and depending on video setting, picture quality can be kept at a high level.

Compression using DivX or XviD can reduce an SD recording from 4GB to 1.5GB and for an HD recording, reduction from 8GB to 4GB can maintain the broadcast PQ at a high level. The only disadvantage of converting from .ts to .avi or .mkv is that you might need to make an effort to keep the 5.1 surround sound and the subtitles features that benefit keeping recordings in their original broadcast formats.

Playing Recordings and other Media Formats
The best media player available for any computer is VLC Media Player from VideoLAN. This is completely free and is a must for anyone wanting to view any video format on any computer. You can download it at the link above or from the AV Programs download page. Do it now!

Not only does this useful piece of software playback your recordings but will also transcode or convert them to other format, and I will be using this to do so.

Categories: Media Formats, Software Tags: , , , ,