Comments on: Parsing In Python

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By: Multimedia Mike

Multimedia Mike — Wed, 10 Dec 2008 23:13:05 +0000

What kind of deep manipulation do you need to do? What do you hope to be able to do that the shell script combined with ‘ffmpeg’ can’t already do? My entire FATE testing system is built on Python simply invoking ‘ffmpeg’ through a shell.

By: Hari Jayaram

Hari Jayaram — Wed, 10 Dec 2008 22:55:26 +0000

Thanks mike , I have the ig:syntax hiliter going with the hack courtesy shantanu-goel that allows you to edit code in the visual editor itself .
Also looking forward to some python binding . Currently I am using python to automate ffmmpeg transcoding of several files via system calls. It sure would be great to talk to ffmpeg directly , but sadly I lack the code skills to do this.

By: Multimedia Mike

Multimedia Mike — Wed, 10 Dec 2008 19:52:39 +0000

Oh yes, I’ve already done some work with Hachoir:

http://multimedia.cx/eggs/hachoir-and-realmedia/

I would like to do more since I like hacking file formats so much.

By: m

Wed, 10 Dec 2008 19:43:47 +0000

For parsing binary files with python, the http://hachoir.org/ project can be interesting

By: Multimedia Mike

Multimedia Mike — Wed, 10 Dec 2008 18:57:01 +0000

I would certainly like to see Python bindings for FFmpeg. It’s not on my short-term TODO list, though.

For syntax highlighting, I use a plugin called iG:Syntax Hiliter: http://blog.igeek.info/wp-plugins/igsyntax-hiliter/ . It supports a wide array of languages and is extremely convenient to use– just surround the code block with square brackets that name the language.

By: Hari Jayaram

Hari Jayaram — Wed, 10 Dec 2008 18:40:18 +0000

Any plans of writing a python wrapper api for ffmpeg , like the ffmpeg-php library. It will be great to manipulate video files without learning to use the fmpeg c api.
Also just curious what plugin you are using to display your code in this blog .

By: compn

compn — Wed, 10 Dec 2008 14:40:23 +0000

the quick and easy way to test for a decoder is
mplayer -vc +ffmjpeg file.avi

the + forces the codec to decode the file when the fourcc is not listed in its codecs.conf entry.
i forced many codecs on the new samples.

By: Multimedia Mike

Multimedia Mike — Wed, 10 Dec 2008 07:44:11 +0000

Thanks again for the tip. I already put it to use trying to figure out this format tonight: http://wiki.multimedia.cx/index.php?title=Auravision