Hi i have a couple of videos on a site of mine. When playing the video locally its smooth but when played online through the player its slightly jerky. Can anyone advise why this maybe? im thinking it might have something to do with the frame rate?
Link to video example: http://www.therevolvingstagecompany.co.uk/html/video.html
Thanks to who ever can help!
Cheers,
Tom
Oops, changed the name of the page .
@Tom,
Your server isn't capable of delivering the video file as fast as it is consumed by the player. Your server maxes out at 740kbps whereas your video bitrate appears to be 957kbps (plus the audio!).
General
Complete name : C:\wget\Middle.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 43.1 MiB
Duration : 5mn 32s
Overall bit rate : 1 086 Kbps
Encoded date : UTC 2009-01-07 18:16:19
Tagged date : UTC 2009-01-07 18:16:19Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 5mn 32s
Bit rate mode : Variable
<strong>Bit rate : 957 Kbps</strong>
Width : 710 pixels
Height : 572 pixels
Display aspect ratio : 4/3
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : NTSC
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.094
Stream size : 38.0 MiB (88%)
Language : English
Encoded date : UTC 2009-01-07 18:16:19
Tagged date : UTC 2009-01-07 18:16:19
Audio
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 5mn 32s
Bit rate mode : Variable
Bit rate : 125 Kbps
Maximum bit rate : 204 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 4.97 MiB (12%)
Language : English
Encoded date : UTC 2009-01-07 18:16:19
Tagged date : UTC 2009-01-07 18:16:19
Cap Tain, so what do we do to fix the maxed out server?
Wow love all that data. How did you get that output?
James
Thank you.
I too have jerky playback after uploading. It plays fine locally.
It does not seem to be a bandwidth/buffering issue as the video can be fully downloaded.
I have tried various bitrates and formats. FLV,MP4 and different hosting. Local website server and Amazon S3
I use Squeeze 5
The site uses Joomla with the Allvideos plugin.
http://www.webspacevideo.com.au/fishing-trip
Any help would be appreciated
Thanks
Nodybod
Hey Tom,
Very nice product! Your video looks like it was encoded with the wrong aspect ratio. Looks like it should be 16x9.
Seems I have the same problem with the jerky playing.. Video seems to snag and hang especially on shots with camera motion. When I was encoding I experimented and found I got the smoothest motion by encoding using VBR. These files are encoded at an average rate of 850kb and play beautifully on the desktop, but online , even after the video has been completely loaded the shots with motion tend to hang or drop frames intermittently.
IS this caused by using VBR or is it because the bitrate is too high? Flash really can't stand a much lower bit rate at this size frame.
Right now I'm using FlixPro and uploading to Vidego which runs on the Akamai network.It is supposed to be a very fast CDN. The player is stored on my website, don't know if that makes a difference. My example can be seen here.
http://www.warrengentry.com/page0/page0.html
Thanks in advance,
Warren Gentry