QT playback of h.264 mp4 files

OK, I have spent the last two weeks making mp4 files of my TV DVDs to watch at school. Now, my PC won't play the videos properly. The playback is jittery, with the video skipping and the audio matching it. I play the same file through VLC media player or QT on my mac, it plays perfect. Anyone know how to fix it?

this fix worked for me.Right-click the program icon on desk-top and choose run-as, then uncheck protect my computer from unauthorized program activity. I am not sure if this stays that way after a log-out, because every time I check it, it is checked again. I just do it every time before starting the program. Good Luck!

Similar Messages

  • Setting hinting for H.264 MP4 files? Possible?

    I want to stream H.264 MP4 files for my online media class. Before with QT files, I set the hinting so the video loads and plays immediately. With H.264 MP4 files, end users have to download the entire file before it plays back in the browser.
    I searched under the various H.264 settings but have failed to discover where I can set the hinting/progressive download option.
    Can anyone help me with this?

    FAQ:Why has my question not been answered?
    Cheers
    Eddie
    PremiereProPedia   (
    RSS feed)
    - Over 300 frequently answered questions
    - Over 250 free tutorials
    - Maintained by editors like
    you
    Forum FAQ

  • FCP recognizes some h.264 mp4 files but not others

    I'm having a particularly frustrating experience with Final Cut Pro 7 at the moment. I've been working on a project for a while now, and I've been importing and cutting with mp4 files that are in h.264 codec with AAC audio. It's been working just fine for a long time now.
    Now, I have three more video files to import into the project. They are THE EXACT SAME format: mp4, h.264 codec with AAC audio. Data rate is pretty much the same. Technically, everything I can see about them, format-wise, is exactly the same.
    It's not recognizing them. I get "File Error: Unknown File".
    I've tried playing them in multiple players. Quicktime, Quicktime 7, VLC... they all work just fine. The inspector in Quicktime tells me the EXACT SAME format information as the files that are importing just fine.
    Can someone PLEASE shed light on what the **** is going on here? Why are all the rest of h.264/AAC/mp4 files that I'm importing working just fine while these three are not? I've looked at their logging/format information... it's all exactly the same. There's no perceivable reason that I can find why Final Cut is singling out these three files not to recognize. I thought maybe something had changed with Final Cut and it no longer works with h.264 or mp4 or whatever... but all the other files I already imported are still working just fine. And I can still re-import them just fine. So it can't be that FCP just doesn't recognize MP4 or H.264 or AAC, because it's recognizing it just fine with all the other files. Again, they're all in the EXACT SAME format!
    And yes, I've tried re-coverting these files. I've converted them using different programs. They always end up working fine for playing in all the players I have, but when I go to import them into Final Cut, suddenly they ain't working. I'm pulling my hair out trying to figure out why and I'm completely clueless.
    Has this happened to anybody else and what did you do? I know I can just try converting them to another format, like ProRes or Apple Intermediate... but that would take up more space on my computer... plus, it's just the mystery of the situation that's really getting to me right now. I want to know WHY it's not working! For the life of me, it doesn't make any sense.
    Also: I thought it might have something to do with Perian. I recently uninstalled and reinstalled Perian. Since I did that, Perian hasn't been working very well. Quicktime doesn't play the audio in mkv files, for example.
    But if Perian not working is preventing FCP from recognizing THESE mp4/h.264/aac files, then why are the rest of the mp4/h.264/aac files still working just fine? Again, it just doesn't make any sense to me. It's like FCP got picked on by these three files and is holding a grudge.

    I know h.264 is not ideal. And you're right, I have had issues with sync on export and such that I've had to deal with. But it still worked. I was able to import and edit with the files, despite having some glitches along the way.
    Now it's just plain not importing. And I have no idea what changed. Final Cut didn't change. It's still importing all the files it likes just fine. They're mp4/h.264/aac, and they import. These three files that aren't importing are the SAME format, but Final Cut doesn't like them for some reason. I would love to know what that reason could possibly be. What could possibly make one mp4/h.264/aac file import, but another one not?
    JUST talking about importing. Not editing or exporting.

  • Loss of a/v sync upon convert to h.264 .mp4 file

    Hey guys
    This file is about 1hr:20min long-  It's an interview shoot that I needed to send raw footage of for review by a friend, anyways when I export the .mp4 file it comes out out of sync
    My source footage in pr Pro CS4 is HDV and everything is perfectly in sync when played from the timeline
    (in timeline source footage is 1440x1080 HDV 48 khz and export is to 640x360 widescreen h.264 22.4 khz)
    but when I export it and play back with Adobe Media player the .mp4 file slightly goes out of sync and after about 10- 15 minutes it's noticeable- by the 1 hour mark it's even worse
    I always close down Pr Pro CS4 first, then open up AME CS4 to encode the video by importing the sequence
    Has anyone ever had to deal with this issue
    any solutions??
    Thanks
    Tony

    Looks like I answered another one of my own questions
    It seems that changing the export audio sample rate from 22khz to 24khz did the trick- I guess this should've been obvious being that the original audio is
    48 khz and 24 being exactly half of that
    A friend told me it could've been a drop frame issue (meaning maybe HDV and my export options drop frame didn't match maybe one was non drop frame and the other was drop frame)- something to keep in mind going forward, but was not the issue here.
    Anyways
    Hopefully info this will help someone in the future
    Best
    Tony

  • Quicktime playback distortion on some mp4 files

    I am having a problem playing some mp4 files through Quicktime. When the video is played in Quicktime (or Pro Presenter 4), portions of the video turn into distorted white blocks that move with the video. It doesn't continue throughout the whole video, but I can't discern when or why it only affects certain portions. It does it every time at those places in the video. I downloaded VLC, and the same exact file plays perfectly fine in VLC and on other computers through various programs. I have only seen this problem on this computer.
    Is this a codec issue? How do I fix it?
    The files in question are mp4 files using h.264 video and AAC audio at 1920x1080 resolution. I can play other mp4s using h.264 and AAC without any problems.
    I have only had this problem with one of the companies that we periodically hire to produce videos for us. I'm guessing that it has something to do with the way he encoded the video, but I have no idea what the problem is. It's probably not his fault if it only distorts on this one computer.
    Here is what the white block distortion looks like:
    Any ideas?

    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
    Reboot, test again.
    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode).
    Hopefully you still have AppleCare on it.

  • Software not loadaing my h.264 MP4 Files

    This is my deal
    I have this Sanyo Camera that records videos on the 29.99fps and 59.94 fps 1920x1080 Full HD and makes MP4 files on H.264 compression for the video and AAC Stereo 48KHz for the audio.
    I have see very well the videos on my QuickTime software but when I Import them into FCPX then it seems the system is working of the background for a while but then it stops. And still I can't see the video only hear it.
    I remmber I was able to import and transcode at the same time on FCP7. Any ideas?
    Please help,
    Thanks.

    I know h.264 is not ideal. And you're right, I have had issues with sync on export and such that I've had to deal with. But it still worked. I was able to import and edit with the files, despite having some glitches along the way.
    Now it's just plain not importing. And I have no idea what changed. Final Cut didn't change. It's still importing all the files it likes just fine. They're mp4/h.264/aac, and they import. These three files that aren't importing are the SAME format, but Final Cut doesn't like them for some reason. I would love to know what that reason could possibly be. What could possibly make one mp4/h.264/aac file import, but another one not?
    JUST talking about importing. Not editing or exporting.

  • Editing H.264 .mp4 files in premiere pro cs4?

    I recently got a GoPro HD Hero camera, and i've been shooting in 720 and 60i, the files that come off of the camera are in .mp4 format, and when i import them into premiere pro cs4 i can hear the sound but all i see is a solid green screen, can anyone shed some light on this problem?

    I cant even get it to import to CS4
    On both my desktop and laptop.
    It crashes and just hangs.
    I tried CS3 but it would not even try to import saying not a suported format.
    im updating to the new 4.2.1 to see if that works.
    my compter is a few years old and it doesnt like HD.
    I can play HDV.
    Even just playing yours in my media player it is having a hard time keeping up.
    It plays fine on the laptop in the player so that is the one updating now.
    Even G-Spot says that the codec is undetermened.
    Glenn

  • After Effects CC // Adobe Media Encoder won't export H.264 mp4 files

    It stops immediately after "Reading XMP", having exported a defective file (200 kb, about a second long). I've tried several presets in this category.
    Is it a codec problem? What could be the cause?

    Rick means composition,  not compensation.
    But he's right; we need that info.
    Also, is this a dynamically linked project? If so, what exact version number of AE are you using (down to the last decimal)? Also, what version of AME? If not, what format and codec are you rendering to out of AE that you're bringing into AME?

  • Problems exporting and playback the MPEG2-DVD videos, from .MP4 file!

    I have PremiereProCS4 v.4.2.1 installed on this PC:
    OS:WindowsXPProx64Bit; CPU:IntelCore2Quad Q9650; RAM:4GB DDR2 PC2-6400 Kingston; HDD:3x500GB WestrnDigital Caviar Green; VGA: Sparkle GeForce 9400GT 512MB.
    I have downloaded an AVCHD file .MTS 1920x1080p 25p, made by Canon HF100 AVCHD camcorder, from this source (.rar file):
    http://www.megaupload.com/?d=RWR5MNYHhttp://www.megaupload.com/?d=B9ZDX2RZ
    The videos in question called: "25pf_1.25_f1.8.MTS" playback and export from Premiere as MPEG2-DVD very well.
    I playbacked it on Premiere on the second Monitor as "OutputDevice". All Ok.
    I playbacked also the DVD made with EncoreCS4, on the external DVD set-top-box-player. All OK.
    I downloaded also another clip 1080p 25p, converted as .mp4, from the same author, imported then in Premiere with Preset "XDCAM EX 1080p 25p" (470MB) :
    http://www.megaupload.com/?d=B9ZDX2RZ
    No problems with playback.
    Exported as MPEG2-DVD PAL "Lower Field First".
    Opened in NeroShowTime Player: the video have a serious interruptions of the playback, some moments plays back-and-forward, and it isn't fluid at all!
    I tried to create a DVD with EncoreCS4 and played it with DVD Player set-top-box, and the result is bad, and is the same as the playback on my PC with NeroShowTime Player. It present the back-and-forwars interruptions.
    I tried also to create an AVCHD Project 1080p 25p and import the .MP4 file, but the problem persists !
    After exporting them, and played-back on NeroShowTime and on Set-Top-Box Player, the video have strange behavior, and plays back-and-forward!
    1) What Preset in Premiere should I use to editing, for this .MP4 file format, (filmed with Canon HF100 AVCHD and converted from original .MTS format to .MP4 format)?
    2) Is this a transcoding problem?
    3) Is this an exporting MPEG2-DVD PAL field-order issue?
    This is my bad exported MPEG2-DVD converted file, available for downloading:
    http://rapidshare.com/files/337858976/Canon_HF100_1920x1080p_25p_01_AVCHD25p.m2v.html
    Strange! With .MTS files I haven't any exporting problems at all!
    Please response me hurry!
    Many Thanks!
    Horsepower.

    OK! Sanyo use a bad format.
    But about JVC GY-HM100 Professional:
    I know this model very well!
    It records to .MP4 XDCAM_EX at the same manner of Professionals Sony Camcorder such this: Sony XDCAM_EX model "PMW-EX1" price €6.478,80.
    This JVC GY-HM100 camcorder is not tha same as Consumer JVC camcorders.
    It doesn't record MOD or TOD files.
    It records .MP4 files editables in Premiere with XDCAM_EX "Preset"!
    See those details:
    http://pro.jvc.com/pro/attributes/HDTV/manual/editing1.html
    http://pro.jvc.com/pro/hm100/content.jsp?model_id=MDL101845&attributeId=2&feature_id=02
    See also this page:
    http://pro.jvc.com/pro/hm100/content.jsp?model_id=MDL101845&attributeId=12&feature_id=12
    The first Brochure called "A Guide to the Most Efficient Workflow with ProHD
    (6 pg brochure)" explain very well the .MP4 - XDCAM_EX format and the Editing process that should be with Adobe PremiereProCS4.
    I have inspected the downloaded .mp4 file in question, and GSPOT v.2.70a reading this:
    -CONTAINER:
         isom: MP4  Base Media v1 [IS0 14496-12:2003]
    -VIDEO:
         CODEC:avc1
         NAME: H.264/MPEG-4 AVC
    -AUDIO:
          CODEC: mp4a: MPEG-4 AAC LC
    1c) Is this an AVCHD video codec?

  • MP4 file type Codec H.264

    I convert movies to MP4 file types with H.264 codec and they will play in itunes, but they will not load on my ipod. How can I get them loaded onto my ipod?

    Answered my own problem. With my iskysoft imedia converter I would convert the movies with H.264 with a MP4 file extension and they would not load into the ipod classic. But when i use the .m4v the movies are saved with the H.264 codec and they load easily onto the pod!

  • Jerky playback of rendered mp4 files in Premiere Elements 10

    I am editing GoPro Hero 3+ MP4 files in PE10 and exporting to AVCHD MP4 (H264 1920x1080p 30) but the resulting file does not play smoothly, almost like it is missing or skipping a frame at regular intervals.  When rendered to M2T (H264 1920x1080i 30) or other AVCHD formats the playback is smooth.  Why can't I export to the same format as the MP4 source files?  FYI, I'm using PE10 on a Win 7, 64 PC with i7 and 16gb ram, and program files on a SSD separate from the HDD containing video files.

    Thanks for your reply.
    Attached is a screen shot of the general preferences.
    When I imported the first GoPro MP4 file into the time line, PE10 gave me a message that the project settings did not match the source file, and asked me if I wanted it to change the settings, which I let it do. 

  • Toshiba Gigashot GSC-K40HE HD - Playback of MP4 files

    Need help please.
    I have a Toshiba Gigashot GSC-K40HE HD camera and have bought an Iomega ScreenPlay Plus HD Media Player, basically a 1TB hard drive with the ability to play back MP4 files that the GSC-K40HE produces through the HDMI cable direct to my TV.(http://www.iomega.com/support/manuals/hdd2009/scrnplyplus/en/main.html)
    The files have been tranfered successfully onto the ScreenPlay Media Player, checked through my laptop the MP4 files open properly.
    However when connecting the ScreenPlay Plus HD Media Player to the TV with the HDMI lead, when selecting the MP4 files a message comes up as 'Unknown File' and won't won't open.
    My questions are:
    1 Why won't the MP4 files play?
    2 Is there another format that they need to be saved in for them to play, if so what ones
    3 Looking at the GSC-K40HE HD camera files there is a 'THM' simultaneous generated with the MP4 file when a video has been taken, what is this and could this affect the playback through the ScreenPlay Media Player?
    4 Does anyone know of a storage device similar to the ScreenPlay Media Plus that I can just copy and store my videos, plug and play back through my TV without the above happening.
    Look forward to your replies.
    Thanks

    Hi buddy,
    Fact is if you can open the recorded files on your notebook the videos are ok and the its no corrupt video file so in my opinion the problem must be the external HDD where you store the videos.
    Have you already tested different videos not from the camera? You should test it with other mp4 files and other file types to make sure the external HDD is working properly.
    If its necessary I would contact Iomega directly. Maybe there is a firmware update for this media player or some settings that you have to check to make such recorded videos working.
    I would also test another cable.

  • Importing .mp4 files leads to no playback

    Hey everyone, thanks in advance for helping me out.
    I recently compressed some large (15GB) .mov files into smaller (500 MB) .mp4 files. Then I moved them into FCP, and now they won't playback at all. I can't play the clips back in the viewer for some reason.
    Any advice?

    I only tried compressing them to .mp4 with the hopes that smaller files would = quicker rendering.
    Why on earth would you think that? This is like saying, I dehydrated my carrots because I thought it would equal quicker eating. Compression (like dehydration) removes mass (and throws away useable stuff). It is designed to pack material in such a way that it is easily transported. But, to use it, the file must be decompressed (rehydrated) into a playable format. This is why all the formats are called CODECS (COmpression/DECompression algorithms).
    Some codecs do not screw around much with the material, sort of like simply putting your carrots in the refrigerator. They leave the material in an easily manipulatable format. Other codecs (like mp4) heavily alter the material (more like running the carrot through a juicer). You can play it back easily because the software decoders for playback are efficient, but you can't cook with it. To reconstitute it takes lots of CPU cycles and your computer isn't happy spending CPU cycles on such a mundane task. It wants to do important stuff.
    Clear as mud, eh?
    x

  • Error exporting h.264 mp4 with certain file size.

    I have tried many times exporting my sequence with h.264 at file size around 5GB. It's a 21 minutes video and when I play them in any players (MPC, QuickTIme) they all stop playing at 16:30 - about 4.3 GB point in the file.
    Playback in Premiere Pro is fine. The rendering went smoothly.
    I exported with 36mbps, and Max 40mbps, Profile 5.1. 1920x1080. (Using Vista)
    Later for experiment, I export it in 34mbps, and the point where the file fails to play is pushed back about 5 seconds - still around the 4.3 GB point. So I guess I can't export h.264 with file size larger than around 4.3 GB?
    Any suggestions? Would appreciate any help.
    Thanks

    Did you export your video under 32bit operating system? How about the codec, did you use "h.264" or "h.264 Blueray".
    I can't use "h.264 Blueray" because it won't let me render 30fps. And what's your audio codec? AAC?
    I just tried to play it on a 64bit linux, no luck. Gave me a set of errors when it passed the 4GB point.

  • Why does Captivate 6 create mp4 files that the swf does not playback clearly?

    Captivate 5 created a .swf which suited my training purposes very nicely.  There were swf files in the library, embedded in the (rather large) .swf that I asked the students to run.  Now it seems that Captivate 6.0.1.240 won't do that.  Captivate 6 creates external mp4 files for the video portion (audio is separately recorded mp3 that is imported to the finished demo video slide) and they look terrible when the .swf runs them.  Those mp4 look fine on their own but the .swf must resize them to properly fit with the TOC on the screen.
    The HTML created when I make the .swf looks fine but it does not all fit on the screen as does the .swf so I don't like it and don't want to use it.  Thanks, in advance, for any replies and suggestions.

    Hi llstewart,
    I assume you are launching your program from C drive. Are any
    components of Captivate stored on the remote drive? (I am thing
    your user profile, are you the only person who accesses Captivate
    from that machine?)
    Does this happen all the time?
    What I have noticed in my own network is that there are
    periodic "dropped" connections on the network. I have never figured
    out what it causing this, but Captivate does not like it. (Every
    once in awhile if Word or Excel are writing to a file on a share,
    they will become thoroughly corrupted too.)
    The problem with Captivate is that it needs a lot of a
    computer's resources and takes what it can get. It also seems to
    write to a temp file a lot (while a capture is taking place) an
    only "binds" it up when the user stops and ends the session. The
    only thing I can think of is that during this process there is a
    inturruption in your network.
    Sorry I couldn't fully answer your question.
    I would try (if you can) loading the software on a machine
    that is not on the network and try to do a series of long captures
    and see if the problem persists.
    I work in a large network and I do not have the problem, but
    I have also installed the software myself and made sure of the
    installation. I also make sure the program I am recording is local
    (whenever possible). Additionally, do you have problems with any
    other programs and corrupted files?
    Again, sorry I don't have a quick answer.
    TPK

Maybe you are looking for