VLC & IVF

[Zeeshan Hayder]

Hey,

i just downloaded VLC 1.1.0 RC from following link,

people.videolan.org/~jb/webm/

but i m unable to play ivf files in vlc.

I m encoding yuv file using simple encoder & playing in vlc, its not
working. But decoding using simple decoder works fine and output yuv
file play well in yuv player.

Can anyone plz help

--ZH

[Philip Jägenstedt]

It's quite likely that VLC doesn't support IVF (Indeo Video Format?) as a
container format. libvpx is the first time I've ever seen it myself.

--
Philip Jägenstedt
Core Developer
Opera Software

[Zeeshan Hayder]

Thankx.

According to specs at

http://www.webmproject.org/code/specs/container/

Matroska container is needed.

Can anyone plz help me to write WebM file header in C++. I have only
Encoded Video in IVF file.

--ZH

[Philip Jägenstedt]

If you have some patience you could build the GStreamer ivfparse plugin
attached to https://bugzilla.gnome.org/show_bug.cgi?id=619158

Then you should be able to remux the IVF as such:

gst-launch filesrc location=video.ivf ! ivfparse ! webmmux ! filesink
location=video.webm

However, it's probably easier to mux as WebM when encoding instead of
remuxing afterwards...

Philip

[Zeeshan Hayder]

Thankx.

How to mux as WebM when encoding? This is exactly what i am interested
in :P

--ZH

On May 27, 11:33 am, Philip Jägenstedt <phil...@opera.com> wrote:
> If you have some patience you could build the GStreamer ivfparse plugin  

> attached tohttps://bugzilla.gnome.org/show_bug.cgi?id=619158

[Philip Jägenstedt]

What are you using? ivfenc is just a reference example encoder and not
really for production use. An example gst-launch command line would be:

gst-launch filesrc location=input.avi ! decodebin2 ! ffmpegcolorspace !
vp8enc ! webmmux ! filesink location=output.webm

However, you probably want audio too, so it's better to use some tool
instead of using gst-launch. Perhaps
http://blogs.gnome.org/uraeus/2010/05/21/transmageddon-and-webm/ ?

There's also ffmpeg of course.

Philip

[Jean-Baptiste Kempf]

Hello,

On Thu, May 27, 2010 at 5:41 AM, Zeeshan Hayder
<zeesha...@hotmail.com> wrote:
> i just downloaded VLC 1.1.0 RC from following link,
>

> but i m unable to play ivf files in vlc.

Obviously, VLC doesn't demux ivf (yet), but since there is a patch on
the ffmpeg mailing-list, we hope it will be able to demux it before
the release.

However, the mkv demuxer of VLC was extended to support webm files
(that you should care about).

Finally, the VLC 1.1.0 release should be able to produce also webm
files, and not only read them.

http://www.videolan.org/vlc/releases/1.1.0-RC.html

--
Jean-Baptiste Kempf