Participating Frequently

Question

*.mp4 will not preview

Forum|Forum|8 years ago
December 28, 2017
4 replies
2177 views

Adobe Premiere Experts,

I will admit I am new to the video editing business and there may be a very simple solution to my problem. Operator error is certainly within the differential. Below I have included, my PC specifications, video card info, Adobe Pr version, and a freeze frame of the problem. I can add *.mp4 video to my timeline, and play, but only the sound is previewed at this time. When I first installed Pr elements, the videos very briefly displayed in preview, but this stopped functioning after adding several videos, and now will not work even on new projects. I have tried clearing the cache, looking for updates, un-installing Adobe PS and Pr elements and re-patching, updating the Nvidia driver and deleting all video files and re-importing. Nothing seems to allow these to videos to preview. Clearly I am fumbling in the dark, someone please light the way.

This topic has been closed for replies.

Mohammad Tahseen

Adobe Employee

Hey, can you try following

1. Launch Premiere Elements.

2. Go to Edit > Preferences > General

3. Uncheck "Use Hardware Acceleration ..."

4. Relaunch Premiere Elements

5. Import video and try playback

We have seen this issue arising from dual graphics cards. Disabling non-Intel graphics card also solves the issue. We are trying to fix this issue in the next version, but for now, disabling Intel acceleration should solve the problem.

B

Bill Sprague

Community Expert

Thanks Mohammad! Next time someone writes "I can't get my cell phone or GoPro video to play." I will offer this suggestion.

Bill

S

Steve Grisetti

Legend

Sorry. Based on what you've told me, this should not be happening.

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NamenotrejectedAuthor

Participating Frequently

Steve,

I thank you for trying.

Since I am now findings others with similar hardware and parallel problems, I feel like there is an incompatibility lurking in the OS, video drivers, or software. Hopefully a patch will make this product functional in the not distant future.

Best,

-c

S

Steve Grisetti

Legend

My video shows you how to use Handbrake to fix this issue.

https://www.youtube.com/watch?v=sSVarfrhr1M

N

NamenotrejectedAuthor

Participating Frequently

Steve,

Very helpful and likely necessary information as I move forward. However, after deleting the old variable frame rate videos and loading the new constant frame rate videos, I still cannot see a preview when play them, only sound comes through. Can the preview window be accidentally disabled? Is there anything else to try? Remember you are dealing with a neophyte. I ran the post Handbrake videos through MediaInfo just in case there might be anything else useful there. I am learning a good deal, stumbling onto success may be inevitable.

General

Complete name : C:\Users\namen\Desktop\Standard Framerate\Sledride2-std.m4v

Format : MPEG-4

Format profile : Base Media / Version 2

Codec ID : mp42 (isom/iso2/avc1/mp41)

File size : 5.59 MiB

Duration : 1 min 11 s

Overall bit rate mode : Variable

Overall bit rate : 656 kb/s

Encoded date : UTC 2017-12-29 14:50:51

Tagged date : UTC 2017-12-29 14:50:51

Writing application : HandBrake 1.0.7 2017040900

Video

ID : 1

Format : AVC

Format/Info : Advanced Video Codec

Format profile : Main@L4

Format settings : CABAC / 4 Ref Frames

Format settings, CABAC : Yes

Format settings, RefFrames : 4 frames

Codec ID : avc1

Codec ID/Info : Advanced Video Coding

Duration : 1 min 11 s

Bit rate : 484 kb/s

Width : 1 920 pixels

Height : 1 080 pixels

Display aspect ratio : 16:9

Frame rate mode : Constant

Frame rate : 30.000 FPS

Color space : YUV

Chroma subsampling : 4:2:0

Bit depth : 8 bits

Scan type : Progressive

Bits/(Pixel*Frame) : 0.008

Stream size : 4.13 MiB (74%)

Writing library : x264 core 148 r2708 86b7198

Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=42.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=20000 / vbv_bufsize=25000 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00

Encoded date : UTC 2017-12-29 14:50:51

Tagged date : UTC 2017-12-29 14:50:51

Color range : Limited

Color primaries : BT.601 PAL

Transfer characteristics : BT.709

Matrix coefficients : BT.601

Audio

ID : 2

Format : AAC

Format/Info : Advanced Audio Codec

Format profile : LC

Codec ID : mp4a-40-2

Duration : 1 min 11 s

Bit rate mode : Variable

Bit rate : 164 kb/s

Channel(s) : 2 channels

Channel(s)_Original : 1 channel

Channel positions : Front: C

Sampling rate : 48.0 kHz

Frame rate : 46.875 FPS (1024 SPF)

Compression mode : Lossy

Stream size : 1.40 MiB (25%)

Title : Mono / Mono

Language : English

Default : Yes

Alternate group : 1

Encoded date : UTC 2017-12-29 14:50:51

Tagged date : UTC 2017-12-29 14:50:51

Thank you for the puzzle work!

-c

S

Steve Grisetti

Legend

What model of camcorder are these Mp4s coming from?

Open one of these MP4s in the free download MediaInfo. In MediaInfo, set View to Text, and copy and paste the report it generates to this forum.

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NamenotrejectedAuthor

Participating Frequently

Steve,

I have video from several devices, but have only been working with the video from one of these to this point. Below is Mediainfo for one of these files. Thank you for taking a look.