VideoHelp Forum


Try DVD Fab Video Downloader and rip Netflix video! Or Try DVD Fab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 7 of 7
Thread
  1. Hello,

    I have to convert a PowerPoint slide show video into another frame rate, for upload to facebook.

    The conversions with Handbrake are great, but not consistent, it is only by chance that the video is flawless. Most come with some minor defects, as can be seen in the video below:



    What advanced settings of Handbrake, in the commad line or on the Advanced tab, are to be selected to convert a slide show video flawlessly, without these defects?
    Last edited by Aquinax; 4th Apr 2016 at 14:31.
    Quote Quote  
  2. I'm a MEGA Super Moderator Baldrick's Avatar
    Join Date
    Aug 2000
    Location
    Sweden
    Search Comp PM
    Have you tried convert with something else? Like xmedia recode?
    Quote Quote  
  3. Member
    Join Date
    Aug 2010
    Location
    San Francisco, California
    Search PM
    Originally Posted by Aquinax View Post
    I have to convert multiple PowerPoint slide show videos into another frame rate, for upload to Youtube.
    Why?

    Originally Posted by YouTube
    Content should be encoded and uploaded in the same frame rate it was recorded.
    source
    Quote Quote  
  4. Member Cornucopia's Avatar
    Join Date
    Oct 2001
    Location
    Deep in the Heart of Texas
    Search PM
    First, there are a number of settings for getting optimal slideshows out of PPT. What are you using? Also highly depends on which PPT version you're using...

    Next, is this a picture or video export? Or is it a screen recording? Lots depends on whether you need animations, filesize requirements, etc.

    Next, what intermediate steps HAVE you taken (or were intending to take)?

    If done right, your export/capture framerate will already match the framerate you'd want for YT.

    Any MediaInfo data? Clip uploads?...

    Scott
    Quote Quote  
  5. Originally Posted by JVRaines View Post
    Why?
    The video was initially intended for facebook and there a conversion is needed prior to uploading because the slides suffer heavy distortions, then Youtube has as well "come into play". You are right, it doesn't need to be converted for an upload to Ytb. I will edit the post.
    Originally Posted by Baldrick View Post
    Have you tried convert with something else? Like xmedia recode?
    Thanks. This one seems to have no option for changing the frame rate, which I need, as described above.
    Quote Quote  
  6. Originally Posted by Cornucopia View Post
    First, there are a number of settings for getting optimal slideshows out of PPT. What are you using? Also highly depends on which PPT version you're using...

    Next, is this a picture or video export? Or is it a screen recording? Lots depends on whether you need animations, filesize requirements, etc.

    Next, what intermediate steps HAVE you taken (or were intending to take)?

    If done right, your export/capture framerate will already match the framerate you'd want for YT.

    Any MediaInfo data? Clip uploads?...

    Scott
    Thank you.

    I've been converting PPT 2013 created 1920x1080 videos into various versions of x264 encodes with Handbrake. The settings I've been trying were 60 fps CFR, x264 Slow/Slower Film/Animation/Still Image/Grain/None High 4.1-5.1 and RF 18-16

    All of the encodes contained 1 to 3 defects as depicted on the provided Vimeo video. By chance a faultless encode was produced and I want to figure out if certain command line or Advanced tab options could effect an essential improvement of a x264 encode.

    What I pleasantly discovered is that the x265 codec (RF 14 admittedly on 'Slower') encodes robustly and consistently without a single flaw. I rely upon that and convert it back to x264 for Youtube, but still it'd be interesting to know if certain Handbrake options tweaking have the power to deliver consistency within the x264 framework.

    The MediaInfo specs of the ppt video are included below:
    Code:
    Complete name                            : D:\pp - 17.mp4
    Format                                   : MPEG-4
    Format profile                           : Base Media / Version 2
    Codec ID                                 : mp42 (mp41/isom)
    File size                                : 496 MiB
    Duration                                 : 6mn 24s
    Overall bit rate                         : 10.8 Mbps
    Encoded date                             : UTC 2016-04-04 13:10:02
    Tagged date                              : UTC 2016-04-04 13:10:02
    
    Video
    ID                                       : 1
    Format                                   : AVC
    Format/Info                              : Advanced Video Codec
    Format profile                           : Baseline@L4
    Format settings, CABAC                   : No
    Format settings, ReFrames                : 2 frames
    Format settings, GOP                     : M=1, N=30
    Codec ID                                 : avc1
    Codec ID/Info                            : Advanced Video Coding
    Duration                                 : 6mn 24s
    Bit rate                                 : 10.8 Mbps
    Width                                    : 1 440 pixels
    Height                                   : 1 080 pixels
    Display aspect ratio                     : 4:3
    Frame rate mode                          : Constant
    Frame rate                               : 30.303 fps
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Progressive
    Bits/(Pixel*Frame)                       : 0.229
    Stream size                              : 496 MiB (100%)
    Encoded date                             : UTC 2016-04-04 13:10:02
    Tagged date                              : UTC 2016-04-04 13:10:02
    mdhd_Duration                            : 384648
    Quote Quote  
  7. I suspect you are having a decoding problem not an encoding problem -- decoding of the video that you open in Handbrake. If you use a lossless codec or a low loss, all i-frame codec for that intermediate video you won't have those types of problems.
    Quote Quote  



Similar Threads