Posts Tagged ‘mp4’

vfe.sh 3.0

Monday, December 10th, 2012

New version of vfe.sh works with ffmpeg v1 and up. Overall the changes to ffmpeg increase the similarity between the ffmpeg and the libav suites, so that makes my life a little easier. I did not try for backward compatibility. If you need to use it with ffmpeg 0.6, then you need to use the 2.0 version. You can get either version from the repo on github:

https://github.com/kwiliarty/vfe-sh

vfe.sh 2.0

Sunday, September 30th, 2012

The latest version of vfe.sh (2.0) allows you to select whether the script will run the transcoding commands using an 'ffmpeg' or 'avconv' command. The default is ffmpeg, and it's the kind of thing one is likely set and leave, so I have added a 'converter' value in my .vferc file. On my Mac I'm using ffmpeg, and on my Ubuntu machine avconv. With avconv I found that Ogg encoding was sensitive to the audio bitrate, and that 128 was a good value. At any rate, it is now a setting that you can adjust on the command line or in your .vferc file. Lastly I added more explicit output so that you can now see in the terminal the full form of the command that the script ran for each video type.

Updated files are on:

http://github.com/kwiliarty/vfe-sh

vfe.sh 1.11

Thursday, December 29th, 2011

I just pushed a new version of the vfe.sh script to github:

http://github.com/kwiliarty/vfe-sh

This version (1.11) drops the use of ffmpeg2theora. All of the relevant functionality of this utility is available through ffmpeg. For my script the switch has these advantages:

  1. Fewer dependencies
  2. Greater range of input formats now possible
  3. Consistent and predictable handling of anamorphic pixel aspect ratios

Point #2 lets me work more easily with kdenlive, which I have recently begun using for video editing. Point #3 makes it easier to handle input from a wider range of cameras.

External VfE 0.8

Wednesday, August 18th, 2010

I've just released version 0.8 of the External "Video for Everybody" WordPress plugin. The plugin now supports delivery of .webm video files. The change to the  HTML is minor, and it's been part of Kroc Camen's Video for Everybody for a while now. I'm just catching up, not least of all because I wanted to be able to do testing of my own before putting it out there.

A trickier question was how to handle the links for downloading files. I've decided to continue generating the .ogv and .mp4 links automatically. These two files are still required in order to play your video on as many systems as possible. The .webm file is icing for now, so you can set a shortcode attribute to include the .webm link whenever that file is also available.

To put it another way, if you are using this plugin, you should offer an .ogv and an .mp4, and you can offer a .webm if you like. If .webm is not your thing, you can just keep using the plugin as before.

A fair question to ask might be: Why use .webm at all when it doesn't increase the viewability of your video, when it takes longer to transcode (at least in my experience), when the file sizes are larger (again, in my experience), and when it means uploading and storing three sizable media files instead of two? The simple answer would be that the quality of the video seems higher to me.

Which raises another point: The order of the source elements is dictated by quirks of certain devices on which you might view the video. That's too bad. Even though .webm looks the best, .mp4 needs to be listed first and might therefore be preferred even by clients that could handle the .webm. It would be nice to find a way to privilege .webm wherever it's supported, but that's a matter for a future version.

External VfE 0.5

Sunday, April 11th, 2010

I've just released a minor adjustment to the External "Video for Everybody" plugin. The change follows the official version 0.3.3 of Video for Everybody. In the code the .mp4 file is now listed as the first <source>. That's the only difference. Firefox still plays the OGG video, but Chrome will play the .mp4 now instead of the .ogv.