12 Replies Latest reply on Mar 31, 2009 10:23 AM by (Bob_JK_Jones)

    Choppy Sequence Preview

    Level 1
      Issue:
      I am having a hard time previewing the sequence that I have created. I have tried with and w/o audio and still have the same troubles.

      Project:
      http://img21.imageshack.us/img21/7962/ss20090330220813.png
      Scratch disk and files are on a separate 7200 sata HDD.

      Project Sequence Info
      http://img13.imageshack.us/img13/823/ss20090330221004.png

      Dropping in just 1 video and 1 sequence
      http://img5.imageshack.us/img5/6447/ss20090330221406.png

      Video information
      General
      Complete name : E:\Fraps\Video 1 23-15-02-04.avi
      Format : AVI
      Format/Info : Audio Video Interleave
      File size : 3.91 GiB
      Duration : 3mn 48s
      Overall bit rate : 147 Mbps

      Video
      Format : FRAPS
      Codec ID : FPS1
      Duration : 3mn 48s
      Bit rate : 146 Mbps
      Width : 1 680 pixels
      Height : 1 050 pixels
      Display aspect ratio : 1.600
      Frame rate : 30.000 fps
      Resolution : 24 bits
      Bits/(Pixel*Frame) : 2.752
      Stream size : 3.87 GiB (99%)

      Audio
      Format : PCM
      Format settings, Endianness : Little
      Format settings, Sign : Unsigned
      Codec ID : 1
      Codec ID/Hint : Microsoft
      Duration : 3mn 48s
      Bit rate mode : Constant
      Bit rate : 1 536 Kbps
      Channel(s) : 2 channels
      Sampling rate : 48.0 KHz
      Resolution : 16 bits
      Stream size : 41.8 MiB (1%)
      Interleave, duration : 996 ms (29.87 video frames)

      I hit play on my sequence to preview
      http://img5.imageshack.us/img5/2624/ss20090330221517.jpg

      and here is what I get in my task manager
      http://img6.imageshack.us/img6/812/ss20090330221629.png

      It just pegs my CPU at virtually 100%. Adobe Premiere Pro.exe and ImporterPorcessServer.exe are the 2 consuming the most.

      DirectX Information
      http://www.filedropper.com/dxdiag

      MSINFO32
      http://www.filedropper.com/sysinfo

      All this is in the MSINFO32 but just in case:
      Athalon X2 6400+ Dual Core
      3 GB PC 3200 ram
      Windows Vista 32
      Nvidia GTX260 896mb ram

      Exporting works perfect. I just can't preview the sequence. It is extremely choppy and impossible to see what changes are needed. I have been dying to try this application and have been having a ton of problems with the previews. I have tried other video files and codecs and have the same issue with all. I have even went into msconfig and disabled all my startup items and nothing.

      Thank you in advance. Let me know if you need anything more from me.
        • 1. Re: Choppy Sequence Preview
          Jim_Simon Level 8
          >Codec ID : FPS1

          My guess is that's your issue. Premiere seems to work best with camera standard formats, and often gets into trouble with other types of video.
          • 2. Re: Choppy Sequence Preview
            Level 1
            I tried this video as well. This was converted from the format you see to this.

            General
            Complete name : E:\Fraps\Video 1.avi
            Format : AVI
            Format/Info : Audio Video Interleave
            File size : 1 023 MiB
            Duration : 6mn 45s
            Overall bit rate : 21.2 Mbps
            Writing library : VirtualDub build 30091/release

            Video
            Format : MPEG-4 Visual
            Format settings, BVOP : Yes
            Format settings, QPel : No
            Format settings, GMC : No warppoints
            Format settings, Matrix : Default (H.263)
            Muxing mode : Packed bitstream
            Codec ID : DX50
            Codec ID/Hint : DivX 5
            Duration : 6mn 45s
            Bit rate : 19.6 Mbps
            Width : 1 680 pixels
            Height : 1 050 pixels
            Display aspect ratio : 1.600
            Frame rate : 30.000 fps
            Resolution : 24 bits
            Colorimetry : 4:2:0
            Scan type : Progressive
            Bits/(Pixel*Frame) : 0.371
            Stream size : 948 MiB (93%)
            Writing library : DivX 6.8.2 (UTC 2008-05-17)

            Audio
            Format : PCM
            Format settings, Endianness : Little
            Format settings, Sign : Unsigned
            Codec ID : 1
            Codec ID/Hint : Microsoft
            Duration : 6mn 45s
            Bit rate mode : Constant
            Bit rate : 1 536 Kbps
            Channel(s) : 2 channels
            Sampling rate : 48.0 KHz
            Resolution : 16 bits
            Stream size : 74.3 MiB (7%)
            Interleave, duration : 33 ms (1.00 video frame)
            Interleave, preload duration : 500 ms

            I have exactly the same issue as the first video.
            • 3. Re: Choppy Sequence Preview
              Curt Wrigley Level 4
              If you are going to convert it to another format you choose another one that is hard to edit. Choose a codec not designed for highly compressed display.
              • 4. Re: Choppy Sequence Preview
                Level 1
                Could you point me in the wright direction. VirtualDub can convert to most formats. What codec, wrapper, bitrate, etc?

                Here are some of the defualt compressors that can be used.
                http://img3.imageshack.us/img3/9560/ss20090331072623.png

                Thank you for your help. Your expertise is really appreciated.
                • 5. Re: Choppy Sequence Preview
                  Level 1
                  Ok. I converted it to the uncompressed version. Here is the the file inforomation.

                  General
                  Complete name : E:\Fraps\Video1 Uncompressed.avi
                  Format : AVI
                  Format/Info : Audio Video Interleave
                  Format profile : OpenDML
                  File size : 62.0 GiB
                  Duration : 6mn 58s
                  Overall bit rate : 1 272 Mbps
                  Writing library : VirtualDub build 30091/release

                  Video
                  Format : RGB
                  Codec ID : RGB
                  Codec ID/Info : Uncompressed RGB32
                  Duration : 6mn 58s
                  Bit rate : 1 270 Mbps
                  Width : 1 680 pixels
                  Height : 1 050 pixels
                  Display aspect ratio : 1.600
                  Frame rate : 30.000 fps
                  Resolution : 24 bits
                  Bits/(Pixel*Frame) : 24.000
                  Stream size : 61.9 GiB (100%)

                  Audio
                  Format : PCM
                  Format settings, Endianness : Little
                  Format settings, Sign : Unsigned
                  Codec ID : 1
                  Codec ID/Hint : Microsoft
                  Duration : 6mn 58s
                  Bit rate mode : Constant
                  Bit rate : 1 536 Kbps
                  Channel(s) : 2 channels
                  Sampling rate : 48.0 KHz
                  Resolution : 16 bits
                  Stream size : 76.6 MiB (0%)
                  Interleave, duration : 33 ms (1.00 video frame)
                  Interleave, preload duration : 500 ms

                  This made a huge savings on my CPU.
                  http://img4.imageshack.us/img4/7947/ss20090331083558.png

                  The video, though, is still choppy. It plays like it is a bunch of still images.

                  I also tried setting the display to 100% and not FIT. That didn't help.

                  Any other ideas?
                  • 6. Re: Choppy Sequence Preview
                    Harm Millaard Level 7
                    Get a better PC for the esoteric format you want to edit. It is choking on your material, likely caused by a lacking disk setup, too slow a CPU or insufficient RAM.
                    • 7. Re: Choppy Sequence Preview
                      Level 1
                      If the CPU is running at only around 50% and the memory is not an issue, how could it possible be the system?

                      Athlon(tm) 64 X2 Dual Core Processor 6400+, 3200 Mhz, 2 Core(s), 2 Logical Processor(s)

                      3gb DDR2 3200 ram

                      Nvidia gtx260

                      I would hardly say it was the system.
                      • 8. Re: Choppy Sequence Preview
                        Harm Millaard Level 7
                        With AMD is looks like the system. AMD is at the bottom of the performance curve with their CPU's. Memory is not great and your disk setup may be lacking.
                        • 9. Re: Choppy Sequence Preview
                          Jeff Bellune Adobe Community Professional
                          A 62 GB file may need defragmenting, especially if it is on a mostly full drive. Does that apply here?
                          • 10. Re: Choppy Sequence Preview
                            Curt Wrigley Level 4
                            Should be fast enough to play uncompressed. I have an old PV 2Ghz that will do that fine.

                            Could be how the disk is connected, OR we have no idea if the conversion to uncompressed avi from the source is valid. Does it play smoothly in WMP?
                            • 11. Re: Choppy Sequence Preview
                              Level 1
                              Thank you very much for your responses!

                              This file is currently running on a 160gb 10000rpm velociraptor drive. There is plenty of room and I have defragged the entire drive.

                              You are right Curt. It doesn't play smoothly in WMP. I converted this using VirtualDub to get it to the uncompressed file. Would it be better to try another compression instead of uncompressed like a DivX or XviD?

                              What should I try next? Thank you again for your ideas.
                              • 12. Re: Choppy Sequence Preview
                                Level 1
                                Ok...found a solution for the choppy preview...for me at least.

                                Load up your project and click on the sequence section. Go to Sequence -> Render Entire work area. What this did is process the video/audio without playing it. It then cached/store all this information. Once this was done, I was able to play around with the timeline and had no lag at all.

                                You all are correct, it must be that my machine has a bottle neck somewhere. Thank you for your help!