Articulating Ideas - Latest Comments

Re: About

Ali imran waqt — Sat, 03 Dec 2011 23:27:42 -0000

hi, kalturian! me a pkistani scientist, God willing nobel prize, what about you dr.khan@msn.com

Re: HTML5 Video Take 2

Yaron Shapira — Thu, 17 Nov 2011 06:40:44 -0000

Nice one Zohar

Re: Flash Developer Take on HTML5 Multimedia Future

Zohar Babin — Tue, 15 Nov 2011 08:03:39 -0000

Thanks!
I need to find some time for a followup post...
For high-level you can follow at - http://blog.kaltura.org/is-fla...

Re: Flash Developer Take on HTML5 Multimedia Future

Yaron Shapira — Tue, 15 Nov 2011 06:21:24 -0000

Nice and sharp analysis

Re: Hacking in FLV bits

Zohar Babin — Wed, 26 Oct 2011 10:21:45 -0000

Flash tends to do this when audio and video frames are not in sync. (it makes the video run faster to fit the audio rhythm).
That may very well be the case in this class, if you're using a VBR video.
Try with a CBR and let me know if it made a difference.

Thanks

Re: Hacking in FLV bits

Kennyl — Wed, 26 Oct 2011 10:14:57 -0000

I'm actually working with one video only. I'm separating the one video into video and audio channels and trying to merge them back together. This is where I get the Video running almost double speed and the audio is fine. I'll try experimenting with my video settings and use CBR. Thanks Zohar.

Re: Hacking in FLV bits

Zohar Babin — Tue, 25 Oct 2011 18:15:59 -0000

Is the Audio and Video encoding specs the same in both files?
Do you use constant bitrate? (VBR is currently not a good option here).

To achieve best result, make both videos CBR, use the same gop size (keyframe density) and same Audio bitrate.

Re: Hacking in FLV bits

Kennyl — Tue, 25 Oct 2011 18:11:22 -0000

Yeah, your boy.flv worked just fine for me. So, it must be something with the FLV I'm using. I would send it, but it's not my content. When I extract just the Video, it plays fine. How are your videos compressed? Mine is 640x360, 15 FPS, Progressive, 22KHz MP3 Mono Audio.

Re: Hacking in FLV bits

Zohar Babin — Tue, 25 Oct 2011 17:32:16 -0000

Hi Kenny,

Is the above sample behave the same in your computer?
If not, can you upload the videos you used?..
What is your Flash version and OS?

Re: Hacking in FLV bits

Kennyl — Tue, 25 Oct 2011 17:21:15 -0000

Hey Zohar, nice class! Did you ever figure out why the the Video plays almost double speed when merging the audio and video channels back together? I've had no luck in figuring this out.

Re: YouTube Direct Upload in ActionScript3

Craigbeswetherick — Tue, 18 Oct 2011 09:46:39 -0000

Hi there, when using the class and using the upload button i get this error:

401
<errors><error><domain>yt:authentication</domain>Unknown</error></errors>
Couldn't determine upload URL.
Couldn't determine upload token.
401Any ideas? Thanks!

Re: Hacking in FLV bits

Zohar Babin — Tue, 19 Jul 2011 14:41:28 -0000

Thanks, sounds right. I'll test it later tonight and update.

Re: Hacking in FLV bits

Pic Morakot — Tue, 19 Jul 2011 14:02:53 -0000

From the comments of Mr.psyone.In FlvWizard.as ==> function slice()
_sliced.writeBytes(writeNumberVariable(FlvWizard.DURATION, (timestampExtended << 8 | time)/1000));
Should be changed. var totalTime:uint = 0; if(in_point < 0){ in_point = 0; } if(in_point > time){ in_point = time; } if((out_point < 0) || (out_point > time)){ out_point = time; } totalTime = out_point-in_point; _sliced.writeBytes(writeNumberVariable(FlvWizard.DURATION, (timestampExtended << 8 | totalTime)/1000));For debug about the duration in the header when use slice()
^_^

Re: Hacking in FLV Bits – Part 2

Zohar Babin — Wed, 06 Jul 2011 03:52:06 -0000

First fix by a reviewer. woohoo! :)
http://www.zoharbabin.com/hack...

Re: Hacking in FLV bits

Zohar Babin — Wed, 06 Jul 2011 03:48:27 -0000

You are correct! Thanks :)
I've fixed it now...

Re: Hacking in FLV bits

psyone — Wed, 06 Jul 2011 02:45:29 -0000

Hy Zohar!

I found some bug in the source. When merge ByteArray's and write the duration in the header you add this value:
_merged.writeBytes(writeNumberVariable(FlvWizard.DURATION, (timestampExtended << 8 | time)/1000));
but this is just the first flv duration

I thing this is te solution:
_merged.writeBytes(writeNumberVariable(FlvWizard.DURATION,totalTime/1000));

thx
psyone

Re: Flash Developer Take on HTML5 Multimedia Future

szeredai akos — Tue, 28 Jun 2011 08:38:18 -0000

it takes tens of thousands of lines to develop a complex app in html5 which probably wont even run because of the performance issues that js has. optimizing that tens of thousands of lines to work on on multiple devices as intended - impossible.

anyway, no developer in it's right mind would start a heavy project with js and html5/css. simply because his head will explode. the lose coding practices of js is just not suited for that.bother myself pointing out how seriously outdated the language is from the fact that it has no true OOP support / architecture, no strict typing, no consistent debug engine, no offline runtime.

html, on the other hand is just a content type (20+ years old) it does nothing. for any tiny functionality you are a slave to 100s of browsers.

flash at the other end you are a slave to only 1 player 1 runtime with almost flawless consistency. looking away from the shortcomings of the AIR (you can shell it if you need more access to various systems) it's becoming the only cross-platform solution for small applications, media or data driven alike at an alarming phase.

it's just a matter of time when people will realize just how much "abuse" can the platform take.

Re: Hacking in FLV bits

Zohar Babin — Sat, 25 Jun 2011 17:09:28 -0000

Interesting... I haven't tried merging the same file :*) .
I'll take a look at it during the week, thanks for posting!

Did you extract the audio and video channels before submitting the bytearrays to the merge function?
Can you post the code you used?

Re: Hacking in FLV bits

Pic_morakot — Sat, 25 Jun 2011 13:52:54 -0000

I try vdo => boy.flv and audio => boy.flv when merge vdo and audio, The vdo faster than the audio!!

Why it's inconsistent? Or i am doing wrong. ToT

Re: Hacking in FLV bits

psyone — Fri, 17 Jun 2011 06:21:25 -0000

Hy Zohar!

Sorry for my english. I want to ask you how can I merge, whit your FlvWizard class, two or more different flv file into one.
Audio and Video also.

Thanx
psyone

Re: About

Phoneywood.com — Sat, 28 May 2011 12:09:09 -0000

H Zohar,
Could you please contact me. I need someone to integrate Kaltura with a forum software. I have specific needs I can share with you. I sent you an email as well.

Re: HTML5 Video Take 2

Miami Personal Injury Lawyer — Sat, 05 Mar 2011 03:58:52 -0000

Two video codecs, H.264 and WebM, have been advanced as candidates for inclusion in HTML5

Re: HTML5 Video Take 2

søgemaskineoptimering — Sat, 19 Feb 2011 00:50:25 -0000

Now that Streaming Media Europe and West HTML5 Media Workshops are over (and that I'm back home), as promised, here are the slides and some .

Re: HTML5 Video Take 2

seo services — Mon, 14 Feb 2011 15:21:30 -0000

... the uptake of these systems - a development that could see more people gaining access to streaming media via an improved high-speed broadband network. ...

Re: About

K17robinson — Thu, 20 Jan 2011 11:28:43 -0000

Hello Zohar, are you available for custom development of the All-in-One Video Pack Wordpress plugin? Thanks, Kyle (k17robinson .at. gmail)