Articulating Ideas - Latest Comments

Re: 5 Steps to get ImageMagick on XAMPP 1.7.3

And — Fri, 11 May 2012 01:53:13 -0000

Thank's my friend this work :D

so can you help me i need script for pdf convert to image,and you can ccontact me on facebook => facebook.com/and.antariksa or email to Andre.Antariksa@yahoo.com so please help me for solved this

Re: How To Do Noise Reduction Using ffmpeg And sox

Usp71084 — Tue, 08 May 2012 01:30:53 -0000

Thanks..I was looking exactly for this.

Re: Hacking in FLV bits

Andy Woods — Mon, 07 May 2012 08:48:02 -0000

Hi Zohar, impressive work here!
I think the recent updates to flash have mucked things up afraid. I directly downloaded your code and ran it in flashBuilder. Check out what happens when playing merged:
http://www.youtube.com/watch?v... .
My eventual goal is to hack in a way to shift the pitch of the audio (check this out
http://krisrok.de/flash/classe.... Will keep you updated regarding this (kind of relates to Dave's above post in that I'll have to play with the Sound class as some point).

Cheers,
Andy.

Re: Which FizzBuzz solution is the most efficient?

Zohar Babin — Wed, 02 May 2012 03:48:44 -0000

You're right... thanks for the comment!
For reference, I've added a note to the post.

Re: Which FizzBuzz solution is the most efficient?

Matt Johnson — Tue, 01 May 2012 18:34:57 -0000

Well, since you said this is all c# and you are going for efficiency, you really should get rid of the string concatenation += operators. Use a StringBuilder, or Console.WriteLine each string directly. Using string concatenation in a loop is a big performance problem because it allocates new memory on the heap each time you use it. In other words, s += "foo" needs three separate memory locations (the original value of s, the value of "foo" and the new value of the result).

Re: Hacking in FLV bits

Zohar Babin — Mon, 30 Apr 2012 02:34:26 -0000

Hi Dave - most likely you will need construct an MP3 header before sending it to the Sound Object. But I didn't have much play time with the Sound Object, so can't be sure...
Would be a great addition to the library though, let me know if you manage to hack it.

Re: Hacking in FLV bits

Dave — Sat, 21 Apr 2012 22:11:38 -0000

Hi Zohar. Thanks for this great class. Do you think it is possible to get the bytes from an MP3 audio channel from an FLV, split from the video using your class, into a Sound object using the new player 11 function Sound.loadCompressedDataFromByteArray() ?

I tried this with your demo and I got the sound to show a length, but it would not play/decode! Maybe because it needs an MP3 header written to the channel?

Re: Hacking in FLV Bits – Part 2

Zongwan — Fri, 20 Apr 2012 01:32:37 -0000

awesome project.
thanks.
hope add MP4(h264) bits hacking...
MP4 is popular as flv

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.