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h.264 bit rate setting isn’t working correctly
Hi, for some odd reason in premeire pro CS4, I tried to change the bit rate setting for h.264, but it just doesn’t seem to make any difference.
I first tried to set it to 5,000 for bitrate setting for a 30minute video the data comes out around 300 megbytes.
Then I set it to 25,000 for bitrate to see if that 30minute video will give me a different data rate with better quality, but still the video appears the same and it came out around 300 megbytes.Can anyone explain what I did wrong?
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3 Replies
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Not many are sure of this, but I think the bitrate setting for codec H.624 is damage, and may need to reinstall the codec.
Is there a way to download codec H.624 for Adobe premiere pro cs4?
No matter what number selected for the bitrate setting, either 1,000, or 5000, or 25,000… the data video size comes out the same.
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H.264 works with certain parameters and is not open to all settings all the time.
Let me explain as simple as I can.
There are two little but critical settings that aren’t well known:
– Profile
– LevelThese setting can cap data rate to conform to lower end settings, say Level 3.0.
You will be able to add in a higher bitrate than it will allow but it won’t tell you it will be capped. you can see it has been capped when the details show up in the AME queue.
Here’s the fast and dirty way to apply your own settings and know it will accept and use them:
– I start with a High Preset (HDTV 25fps for PAL) and then know I can work down the bit-rate and scale down the dimensions myself to make a custom setting that will be at Level 4.1 (based on the HDTV preset, Youtube SD will be at Level 3.1).This caught me out a while ago and it’s still not very well known.
I hope this solves your issue.
– Jon Barrie 🙂
Jon Barrie
aJBprods
http://www.jonbarrie.net
http://www.suiteskills.com -
The problem is when used the High presents, unfortunately none of these high presets allow me to set my own bitrate. I wanted to use the codec H.264, cause its a codec that have an option to set the bitrate, the DV NTSC and other presets doesn’t have it.
I did a test, and I dont’ think the bitrate is limited.
I tested by setting the bitrate at 100bytes, in a 5 second video. It came out to 1.47meg
Then I tested it to 500 bytes, and still came out 1.47 meg.
Then I raised it to its maximum byes 9999999, and still came out to 1.47 meg with all clips.
(I also notice that the option “codec setting” is in grey and I’m unable to click it.)
Any suggestion?
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