Comments for Diego's Rants

Comment on MediaInfo for Mac: Know everything about your media files. by MediaInfoMac User

MediaInfoMac User — Wed, 27 Aug 2008 21:04:20 +0000

In line with the changelog, 0.7.7.50 does not run under Tiger for me. Downgraded back to 0.7.6.31 and all is well.

Comment on Thank you, and some questions. by Thomas

Thomas — Tue, 26 Aug 2008 12:45:33 +0000

Hi,

first of all thank you for the very nice Mediainfo Mac programm. I really enjoy it. There is only one piece of information missing. I downloaded the program to find out the “quality setting” of my aac files. In late 2007 apple made it possible on the Mac to encode unconstrained (true) VBR mode files. The only program I know which is supporting this so far is “X Lossless Decoder” (XLD). I used this often with different target quality settings between 0 and 127.

Is it possible to find out the target quality setting (range 0 .. 127) of my AAC files with mediainfo? Will it be?

Thanks for all
thomas

Comment on Creating good quality h264 video for the upcoming Flash Player and Flash Media Server by audio files

audio files — Sat, 23 Aug 2008 10:48:16 +0000

hey guys, we just recently launched our free audio file website. download sound effects, interviews, podcasts…you can check it out at: http://www.yourlisten.com

Comment on Thank you, and some questions. by Roger

Roger — Sat, 09 Aug 2008 14:34:19 +0000

+1 on the forum idea!
Thank you so very much Diego for such an useful website.

Comment on An automated and rock-solid encoding engine solution for your youtube-like site. by Diego Massanti

Diego Massanti — Wed, 06 Aug 2008 20:40:57 +0000

There is not such thing as a correct “frame rate conversion” or some magical recipe, i think you are not understanding what i mean.
What i was trying to explaining you is about video in general, not about any specific encoder or parameter.
If you have a video that is 29.970 fps and your output file is 25 fps, you will SEE artifacts, specially in scenes with fast movements, camera zoom or pans, etc.
The best approach is not to convert the frame rate at all, if your source video is 29.970, use the same frame rate for the output video too.
Now, there is a 2nd thing you need to have in account, that is INTERLACING. Some video sources are interlaced (for example standard DVD footage), you need to apply a deinterlacing filter in the middle of your processing chain in order to output progressive video, if you fail to do that, your output video wont look right unless your player does realtime deinterlacing (VLC and some others can do that).
Again, this is not about any encoder or system in particular.

Comment on An automated and rock-solid encoding engine solution for your youtube-like site. by Truus

Truus — Wed, 06 Aug 2008 17:39:17 +0000

Will you please to be so kind to tell me which frame rate conversion I have to use, because I see for example by Quicktime the wood not more, because of the trees Maybe you can give me any suggestion. I’m not that geek as you are.

Comment on An automated and rock-solid encoding engine solution for your youtube-like site. by Diego Massanti

Diego Massanti — Wed, 06 Aug 2008 16:25:05 +0000

If you are having problems with transitions not looking “smooth”, etc, most probably it is because you are not properly de-interlacing the source video or because you are doing a bad quality frame rate conversion…. there are other factors too to be honest but those 2 are the most common ones.
As you maybe know by now, I’m a huge fan of mplayer / mencoder / FFMPEG & x264, mainly because of the GREAT community behind them, and because I happen to like open source projects. I won’t recommend any other tool for video encoding / transcoding or manipulation. That is of course a matter of tastes.

Comment on An automated and rock-solid encoding engine solution for your youtube-like site. by Truus

Truus — Wed, 06 Aug 2008 14:27:27 +0000

Hi Diego,

As you know I’m busy with videos, some programs do have an build in converter for mp4 or YouTube format, one doesn’t have that. In my opinion is Quicktime Pro no option to convert to a mp4 file, so I use often or VisualHub or ViddyUp, but sometimes they convert it not good, transitions looks like a little earth quack. How can I solve this problem?

Comment on Encoding high quality h.264 / aacPlus v2 media for web streaming with Flash 9, version 2. by Murat

Murat — Sat, 02 Aug 2008 14:40:57 +0000

Thanks to diego, I have mastered my encoding solution based on his tutorial and my own x264 quality / size settings.

Comment on Encoding high quality h.264 / aacPlus v2 media for web streaming with Flash 9, version 2. by Dave

Dave — Thu, 31 Jul 2008 18:41:26 +0000

I was wondering if anyone on this forum would be interested in developing an H.264/AAC video transcoder for a flash video sharing website. The transcoder would need to convert .avi, .mov/quicktime, mpeg, and .wmv uploaded files into .flv output. If you are interested in this project, please email me at deemarklit@gmail.com. Thank you