3 Replies Latest reply on Jun 1, 2014 11:34 AM by A.T. Romano

    Using Premiere Elements 12 to edit iPhone 5 video, the published .MP4 is choppy when the video moves quickly

    cwsteini

      I am using Premiere Elements 12 up to date.

       

      I am editing iPhone 5 video shot with the following specs:

      Type: MPEG Movie (.MOV file extension)

      File size: not exceeding 300 MB

      Image Size: 1920x1080

      Frame Rate: 30.00

      Source Audio Format: 44100 Hz - compressed - Mono

      Project Audio Format: 44100 Hz - 32 bit floating point - Mono

      Total Duration: not exceeding 3 minutes

      Pixel Aspect Ratio: 1.0

       

      Project Settings:

      General:

      Editing Mode: DSLR

      Timebase: 30.00 frames/second

      - Video

      Frame Size: 1920 horiz 1080 vert

      Pixel Aspect Ratio: Square Pixels (1.0)

      Fields: No Fields (Progressive Scan)

      Display Format: 30fps Timecode

      - Audio

      Sample Rate: 48000 Hz

      Display Format: Audio Samples

      Capture:

      Capture Format: DV

      Video Rendering:

      - Previews

      File Format: I-Frame Only MPEG

      Compressor: MPEG I-Frame

      checked = Optimize Stills

       

      If I publish under Computer and select AVCHD

      choose: MP4 - H264 1920x1080p 30

      File Type: H.264

      Frame Size: 1920 x 1080

      Frame Rate [fps]: 29.97

      Audio Setting: AAC, 160 kbps, 48 kHz, Stereo

      File Size: 1531.05 MB

      Duration: 6 Min, 30.00 Sec

       

      The video is choppy whenever there is moderate movement.

      During playback in premiere it is perfectly smooth.

       

      All I want to do is to be able to share this video online on youtube, Facebook and be able to watch it back on my computer at fairly high quality but I am willing to compromise in order to get it all to play smoothly.

       

      Q1) What should I be outputting this as to accomplish what I have just said?

      Q2) The video should only be like 3 minutes long after editing it but it seems to have about 3 minutes of black screen at the end. How do I get rid of this black bit at the end??

        • 1. Re: Using Premiere Elements 12 to edit iPhone 5 video, the published .MP4 is choppy when the video moves quickly
          A.T. Romano Level 7

          cwsteini

           

          Unless you have the information in front of you, please download and install the MediaInfo video properties readout program to determine the frame rate or frame rates of your video. Cell phone video is often characterized by variable frame rate which can (not always) create problems in getting the video imported at all, out of sync audio....

           

          MediaInfo - Free download and software reviews - CNET Download.com

           

          Be on guard for any unwanted carry alongs with the MediaInfo. Great program, but those carry alongs can be a major nuisance. The readout of that program will tell us constant versus variable frame rate.

           

          Also check the readout to confirm that your are working with progressive rather than interlaced video.

           

          If variable frame rate, the next step would be to take the video into HandBrake and export it as H.264.mp4 with a constant rather than variable frame rate. Use the middle value between the min and max.

           

          We will be watching for your results.

           

          Thank you.

           

          ATR

          • 2. Re: Using Premiere Elements 12 to edit iPhone 5 video, the published .MP4 is choppy when the video moves quickly
            cwsteini Level 1

            A.T. Romano,

             

            Thank you for your quick response.

             

            Some additional information that I left out from my first post:

            I am running: Adobe Premiere Elements Version 12.1

            On: 11-inch Mid 2011 Macbook Air 4,1

            OS: Mac OSX Mavericks 10.9.3 (13D65)

            Processor: 1.6 GHz Intel Dual Core i5 [L2 Cache (per core): 256 KB]

            Memory: 2 GB 1333 MHz DDR3

            SSD: Samsung 260 Gb w/140 Gb free

            Graphics: Intel HD Graphics 3000 288 MB

             

            and I am viewing on my standard 11-inch (1366 x 768) display.

            Just so you and others who may find this thread helpful have the full picture of my situation.

             

            Media Info Results:

            General

            Complete name : ..\IMG_1249.MOV

            Format : MPEG-4

            Format profile : QuickTime

            Codec ID : qt

            File size : 174 MiB

            Duration : 1mn 45s

            Overall bit rate : 13.8 Mbps

            Recorded date : 2014-05-27T18:23:33-0500

            Encoded date : UTC 2014-05-27 23:23:33

            Tagged date : UTC 2014-05-27 23:23:45

            Writing application : 7.0.4

            Writing library : Apple QuickTime

            Model : iPhone 5

            ©xyz : +43.0273-088.2103+293.675/

            Make : Apple

            com.apple.quicktime.make : Apple

            com.apple.quicktime.creationdate : 2014-05-27T18:23:33-0500

            com.apple.quicktime.location.ISO6709 : +43.0273-088.2103+293.675/

            com.apple.quicktime.software : 7.0.4

            com.apple.quicktime.model : iPhone 5

            Video

            ID : 1

            Format : AVC

            Format/Info : Advanced Video Codec

            Format profile : High@L4.1

            Format settings, CABAC : Yes

            Format settings, ReFrames : 1 frame

            Format settings, GOP : M=1, N=30

            Codec ID : avc1

            Codec ID/Info : Advanced Video Coding

            Duration : 1mn 45s

            Source duration : 1mn 45s

            Bit rate : 13.7 Mbps

            Width : 1 920 pixels

            Height : 1 080 pixels

            Display aspect ratio : 16:9

            Frame rate mode : Variable

            Frame rate : 29.970 fps

            Minimum frame rate : 28.571 fps

            Maximum frame rate : 30.000 fps

            Color space : YUV

            Chroma subsampling : 4:2:0

            Bit depth : 8 bits

            Scan type : Progressive

            Bits/(Pixel*Frame) : 0.221

            Stream size : 173 MiB (99%)

            Source stream size : 173 MiB (99%)

            Title : Core Media Video

            Encoded date : UTC 2014-05-27 23:23:33

            Tagged date : UTC 2014-05-27 23:23:45

            Color primaries : BT.709

            Transfer characteristics : BT.709

            Matrix coefficients : BT.709

            Audio

            ID : 2

            Format : AAC

            Format/Info : Advanced Audio Codec

            Format profile : LC

            Codec ID : 40

            Duration : 1mn 45s

            Source duration : 1mn 45s

            Bit rate mode : Constant

            Bit rate : 64.0 Kbps

            Channel(s) : 1 channel

            Channel positions : Front: C

            Sampling rate : 44.1 KHz

            Compression mode : Lossy

            Stream size : 810 KiB (0%)

            Source stream size : 811 KiB (0%)

            Title : Core Media Audio

            Encoded date : UTC 2014-05-27 23:23:33

            Tagged date : UTC 2014-05-27 23:23:45

             

            So gleaning the important details from that:

            Video was shot on: iPhone 5 running iOS 7.0.4

            Resolution: 1920 x 1080

            Format: MPEG-4 (.MOV)

             

            Video -

            Format: AVC (Advanced Video Codec)

            Format Profile: High@L4.1

            Format Settings: CABAC (lossy compression)

            Bit rate: 13.7 Mbps

            Display aspect ratio: 16:9

            Frame rate mode: Variable

            Frame rate: 29.970 fps

            Minimum frame rate: 28.571 fps

            Maximum frame rate: 30.000 fps

            Scan type: Progressive

             

            So we have a variable frame rate and progressive scan...

             

            Handbrake:

            I then downloaded the latest version of handbrake as you instructed for free directly from their website.

             

            What I ended up doing (just because it's what I tried first and it worked really well) was to take the .MP4 files that Adobe Premiere Elements 12.1 had outputted (through the publishing process) and loaded them into handbrake. These were the .MP4 file/movies that were supposed to be my finished product but had the problem of being all choppy/skippy/jumpy (all synonyms to describe what I was experiencing with the videos).

             

            Output Settings (for Handbrake): Custom

            Format: MP4 file

            Web Optimized: Check

            Video -

            Video Codec: H.264 (x264)     Framerate (FPS): 29.97 (NTSC Video) & Constant Framerate

            Video Quality: Constant Quality     RF: 20 (I tested them at 20, 10, 5, 4, 3, and 0 and chose 20 because I really couldn't see much difference with the higher quality)

             

            x264 Preset: medium

            x264 Tune: film

            H.264 Profile: auto

            H.264 Level: 4.0

             

            Before starting I always did a 15 second "Preview Window" which I think is a really cool feature to see what the end video will look like andy verify my settings before running the long render process.

             

            The resulting .MP4's were totally cured of their choppy qualities and played beautifully smooth and in Full HD.

             

            Thanks you A.T. Romano so much for suggesting Handbrake and explaining what to do! I hope others will find this explanation/instructional helpful!

            • 3. Re: Using Premiere Elements 12 to edit iPhone 5 video, the published .MP4 is choppy when the video moves quickly
              A.T. Romano Level 7

              cwsteini

               

              Thank you for the detailed reply which is appreciated and will be very helpful to all.

               

              You did very well sorting through the troubleshooting details to a successful conclusion.

               

              Best wishes as you move forward in your Premiere Elements projects.

               

              ATR