Comments on: MKMP4: An automated H264 / HE-AAC (aacPlus) encoder script for Mac and Linux / Unix

By: Diego Massanti

Diego Massanti — Tue, 08 Dec 2009 22:00:34 +0000

Thank you
I will try this and see if it is better. Im actually redoing mkmp4 from scratch, so maybe i will use your approach instead, i honestly wasn’t happy at all with the quality of thumbs.

By: Thomas

Thomas — Tue, 08 Dec 2009 21:58:27 +0000

i call this command with php passthru, because I generate it in a different part of the process.

$mplayer_command =’ffmpeg -y -i ‘ . $filename . ‘ -f image2 -ss ‘. $duration .’ -s 512x’.$screenshot_height.’ -vframes 1 -an ‘ . $directory . ’00000001.jpg ‘;

I guess you get the idea. The quality is really much better compared to mplayer…

By: Diego Massanti

Diego Massanti — Tue, 08 Dec 2009 19:53:14 +0000

@Thomas, care to write your command here so others can benefit from the fix too ? Cheers.
Diego.

By: Thomas

Thomas — Tue, 08 Dec 2009 12:19:04 +0000

Just a hint to others, I always had problems with ugly / grey / unsharp thumbnails. Solution: i just replaced Diegos screenshot-command by the corresponding ffmpeg command and now the thumbnails look fine – always.

By: cychong's me2DAY

cychong's me2DAY — Sat, 28 Nov 2009 06:46:55 +0000

멤피스의 생각…

Diego’s Rants » MKMP4: An automated H264 / HE-AAC (aacPlus) encoder script for Mac and Linux / Unix…

By: Thomas

Thomas — Sat, 31 Oct 2009 10:17:43 +0000

ok, figured it out.

was using different debian versions locally and on the server which led to various problems with mplayer, MP4Box and the Nero-Encoder…

By: Thomas

Thomas — Thu, 29 Oct 2009 05:49:55 +0000

Hi Diego, thanks again, I am running a UGC Site with your script in bckground now for months

recently I started adding hd capabilities, everything was downsized to 512 px width – now I generate a secon version wit 1280 px widht max.

I have one strange problem, the only difference between the small and the big version are different width/height, as I set the bitrate for the big version to 4000 I get multiple audio & video streams in one file – any hint on this?

Mediainfo output:
http://pastebin.com/m68940276

Thanks

By: Nicolas

Nicolas — Tue, 27 Oct 2009 17:06:10 +0000

Hi diego, thx for the great mod
However I am having troubles compiling gpac on centos 5.3

here is the message :

compositor/events.c:239: warning: passing argument 3 of ‘gf_utf8_wcstombs’ from incompatible pointer type

and finally at the end ..

collect2: ld returned 1 exit status
make[1]: *** [libgpac.so] Error 1
make[1]: Leaving directory `/root/gpac/src’
make: *** [lib] Error 2
[root@lnx-svr gpac]#

I am lost at what could be the problem on this one :S

By: Diego Massanti

Diego Massanti — Sun, 18 Oct 2009 22:17:26 +0000

Hey great, i was actually working on a totally new script, but you’re free to send me back your mods for this one and i will be happy to publish it here with proper credit.
Thanks!

By: Gunstick

Gunstick — Sun, 18 Oct 2009 18:14:53 +0000

I’m currently working on your script doing some minor modifications. I will send you the result when done.