I had the same issue in windows 10 and it's caused by files names containing #, the number sign (or pound sign). If it's still happening after editing out every '#' then there might be other special characters causing this mp4joiner error I haven't checked.
Hello I'm new to splitters video techie stuff. I'm interested in sharing clips and excerpts from Rumble video interviews. MP4Tools was recommended among a few to do this. I've got separate video and audio successfully in there ready to split/edit independently (haven't done that yet), but don't know how to merge the two back together or see any tools for doing so. I read that ffMPEG may need to be downloaded and somehow integrated with the MP4Tools framework. The step by step tutorial looked a little...
Hi, I am getting this Message: Error initializing output stream 0:0 -- Any idea, what's to do?
After having switched to Wondows 11, mp4 joiner shows failure: requested url is not valid or cannot be found. What to do?
Good morning. My name is David and I would like to ask the programmers this: why don't you update the software by increasing it with a sound (perhaps configurable and activateable) that plays when a join is completed? I don't spend the entire time with the MP4 Joiner screen in front of my eyes and I would save a lot of time if I had something that notifies me when the joining of files is complete. Thank you and have a nice day. David
MP4 joiner does nor seem to work on GoPro 5K videos. Is there some requirement about file size total relative to system memory for Win sytems?
figured out the problem so i'll post here for others. the app puts up two different 'completion' dialog boxes. the first one say "done." and give you completion time, a few moments later it changes to another one that says "successful". If you click Close on the first one, the app will error out when it tries to run the code for the second one. If you always wait on the 2nd dialog, it will not crash, if you click close on the first one, it will always crash a moment later.
Starting today, the joiner app suddenly exits after it finishes the joining process. The files process fine but the app just closes and I have to launch again. Yesterday, and prior days, it did not do this. Not sure if there is a log file somewhere that will indicate the issue but curious if others have seen this situation? Thanks in advance for any time or help.
Implementing a "reload on external modification" feature in MP4 Splitter can enhance user experience. Developers can create a temporary internal copy of the file for processing here while allowing external modifications to prompt a reload option, addressing file locking concerns for a more user-friendly interface.
Hi, At first MP4 Splitter worked like a charm, but now audio and video is out of sync, and the splitted parts does not start/end where they should. Things I tried: - reinstall - different mp4 files - enable/disable "split/cut on key frames only" What more to do?
You can create a text file where you list the file names in the desired order, allowing for easy reference and adjustments later. Alternatively, consider using video editing software with a storyboard feature to arrange and save the clips in the preferred sequence before making any final adjustments.
Consider using video editing software like Adobe Premiere Pro or iMovie. Import the MP4 files, insert the chosen bleeper or notification between selected events, then export the edited footage. Alternatively, explore online tools like HandBrake to convert the bleeper MP4 into a compatible format before using MP4joiner for simpler merging while maintaining the scene dividers.
You can create a text file where you list the file names in the desired order, allowing for easy reference and adjustments later. Alternatively, consider using video editing software with a storyboard feature to arrange and save the clips in the preferred sequence before making any final adjustments.
2 years plus for a reply is unacceptable, went to another program. On Sun, Dec 31, 2023, 11:51 a.m. Alex Conwoy alex940@users.sourceforge.net wrote: This issue might be due to a synchronization problem or an error during the video merging process. Try using video editing software to rejoin the videos while ensuring proper synchronization and codecs to maintain audio throughout the entire joined video. Loss of audio after 1 min in joined videos https://sourceforge.net/p/mp4joiner/discussion/general/thread/897d05c456/?limit=25#3df5...
The numbers like 1:1.34 and 4:3 refer to aspect ratios of the videos. 1:1.34 indicates a widescreen aspect ratio, while 4:3 represents a standard aspect ratio. Adjusting Snagit's capture settings to match the desired aspect ratio might help ensure compatibility when joining videos using MP4Joiner.
This issue might be due to a synchronization problem or an error during the video merging process. Try using video editing software to rejoin the videos while ensuring proper synchronization and codecs to maintain audio throughout the entire joined video.
Another file attached
MPEG-H Part2/HEVC (H265) (hvc1) merge audio issue
Auto split support
Subtitle support
MP4Splitter V3.8 doesn't have a toggle to retain embedded subtitles after splitting. You may want to use alternative software like MKVToolNix or HandBrake, ensuring to select the option to keep embedded subtitles intact while splitting your MP4 files.
Ensure that your audio drivers are updated. Check the program's audio settings to confirm the correct playback device is selected. If the issue persists, try reinstalling the program or using an external video player to verify sound functionality.
Implementing a "reload on external modification" feature in MP4 Splitter can enhance user experience. Developers can create a temporary internal copy of the file for processing while allowing external modifications to prompt a reload option, addressing file locking concerns for a more user-friendly interface.
MP4 Joiner 3.8 doesn't load on MacOS Sonoma (M1 Macbook Air)
Maybe you don't need this today. But for everybody with this error: -Reinstall ffmpeg -Reinstall libwsvg and related -Install wxSVG from https://wxsvg.sourceforge.net/ and build it with ./autogen.sh, ./configure --enable-libav make sudo make install If you installed it previously, open a terminal and type cd wxsvg (for example) and type: make clean, sudo make clean. Then rebuild wxSVG. You'll need Pango and Cairo, Pangocairo and related. Download mp4tools 3.8 cd mp4tools ./autogen.sh -./configure...
You also need to install gpac, sudo apt install gpac
You also need to install gpac, sudo apt install gpac
Maybe you don't need this today. But for everybody with this error: -Reinstall ffmpeg -Reinstall libwsvg and related -Install wxSVG from https://wxsvg.sourceforge.net/ and build it with ./autogen.sh, ./configure, make,sudo make install. If you installed it previously, open a terminal and type cd wxsvg (for example) and type: make clean, sudo make clean. Then rebuild wxSVG. You'll need Pango and Cairo, Pangocairo and related. - Download mp4tools 3.8 - cd mp4tools - ./autogen.sh -./configure --with-wx-config=/usr/bin/wx-config...
When a file is opened in MP4 Splitter it is being locked mutually exclusive so that changes to the same from other sources can not overwrite it. Would it be fine if the developers relax this restriction and add a feature that if a file is modified externally when it is open in the tool, the same could be offered to be reloaded. During the melee, the tool could have a temporary copy of the file for its internal processing. I hope this would be more friendly. I recently had a slight problem with this...
Video fails to split in v3.8 but works fine in v3.7
There's no sound during playback of the video, inside the program. My video splits based on sound. What can I do? (Win11 Pro x64 english)
No audio when load video
Hi First of all: Thanks for your great work. This software is an awesome and lean tool. My proposal would be the following: When splitting a large mp4-file in most cases i either want to crop a single portion in the middle or join all resulting parts in a highlight-reel - like for example "all fight scenes in The Raid". Could we have an additional checkbox in th mp4 Splitter that doesnt output like 8 mp4 files but instantly concatenates the resulting mp4 files into one single file? I know, i can...
I have several attempts to join the video files, it seems as an error: the program wrote "complete", but I can't see the output file. When I close the window, a program unexpectedly quits. there is less available space on my computer - I think it is temporary files... When I specified a place for temporary files, I see, that there is a new 18Gb temp. file created after each attempt. Please help find these temp files for erasing and empty the disc space. Big Sur, 11.6.1, Macbook M1
I have several attempts to join the video files, it seems as an error: the program wrote "complete", but I can't see the output file. When I close the window, a program unexpectedly quits. there is less available space on my computer - I think it is temporary files... When I specified a place for temporary files, I see, that there is a new 18Gb temp. file created after each attempt. Big Sur, 11.6.1, Macbook M1
Program not created an output file and crashed after closing window
I have several attempts to join the videofiles, it seems as error: program wrote "complete", bot I can't see the output file. When I close window, a program unexpectly quit. there is less available space in my computer - I think temporary files.. Big Sur, 11.6.1, Macbook M1
MP4Splitter V3.8 does not retain embedded subtitles after splitting. Is there a toggle that will not delete the subtitle after splitting?
audio is also out of sync
I just reviewed my videos and sound is only available in the 1st segment of a joined video.
I have these packages installed:
Is there a .deb file or appimage or snap or flatpak or something else? I am trying to install by source and I don't see a list of dependencies anywhere. I have been installing them one after the other, according to the errors in build, but I am stuck on this one: MP4Joiner requires the wxSVG library with ffmpeg/libav support. The full output is: ./configure && make checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes /home/shmuel/Downloads/MP4Tools-3.8/missing:...
After files are joined, I have no idea where to find it. Any suggestions?
After files joined, I have no idea where to find it. Any suggestions?
GoPro Video joined in VLC is always longer 24Min when actual footage is less
Same exact problem with go pro video, i have video that is 12 mins long and than another that is 6 but VLC always shows 24 mins in total so I have to join and then split again. quite annoying
Application crashes when trying to view a video
I'm using an motion triggered camera which produces an MP4 file for each event. I would like join selected events inserting some visual or audible notification that it's a new scene. I found a short MP4 bleeper but, seemingly, it is not compatible with MP4s from the camera because it reports that the bleeper MP4 needs re-encoding which I don't know how to do. I know that MP4joiner is delightfully uncomplicated but I think it would be beneficial to have the option of adding scene dividers.
So nobody what the numbers mean in the video image? If I knew what the number meant I might be able to configure Snagit differently.
Hello, any fix on this issue? I have the same problem with a GoPro9, joins ok but then the output duration is way bigger.
What do the numbers mean in the joiner? 1:1,34 and 4:3
I am trying to split a folder of videos which are 15 to 30 GB in size into files with maximum 14 GB (to uplod to our Box enterprise account as backup). When I enter 14000 (MB) it simply copies the whole file. When I enter 1400 it correctly splits the videos to 1,43 GB segments. This seems to clearly be a bug. Anybody having the same experience or knows a workaraound? Thanks a lot for your help in advance.
Tring to join 21 videos ( each representing a slide) MP4Joiner will silently skip a slide. videos created with snagit Mp4joiner show video with 1:1,34 number ? others had 4:3 included JPG image. slide9.mp4 would skip.
Hi, everyone. I just downloaded MP4 Tools 3.7.2 in order to split a 2 ½ hour mp4 file into chapters. It worked great using the time function (I specified 00:00:00 to 00:24:36). When it was done, I renamed the split file. However, I then tried it on the next portion (00:24:36 to 00:48:53), but it doesn’t work. The only file it generates is a log file. I'd like to register the app, but I want to make sure it does what I need first. Can some of you help? Thanks! David
I addressed this by running the MP4Tools output file through Handbrake; Loading was fast after that; You can also address size, resolution, etc. It takes a while, and I don't think it should be necessary, but it does make the resultant file load faster.
I have the same issue...merged output takes a long time to load.
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I have merged two MP4 files together using the settings seen in the attached screenshot. Both MP4 files are encoded the same, only the content is different between them. The merging process completed normally however when I try and open the merged MP4 file in VLC, it takes much longer to open than a similarly sized MP4 file and also if I use MediaInfo to view the output file, it also takes a long time to load. I don't have this issue when opening up other large MP4 files in either VLC or MediaInfo....
Here is the attachment referenced above.
I have merged two MP4 files together using the settings seen in the attached screenshot. Both MP4 files are encoded the same, only the content is different between them. The merging process completed normally however when I try and open the merged MP4 file in VLC, it takes much longer to open than a similarly sized MP4 file and also if I use MediaInfo to view the output file, it also takes a long time to load. I don't have this issue when opening up other large MP4 files in either VLC or MediaInfo....
Trying to find the the location file where the username of MP4Tools is registered . Anyone knows where to find that ? i am in need to erase that username.... any kind of method to uninstall MP4Tools still will keep that very file conatining an old username. its like a cancerous cell, that i cannot get red of... does anyone know where that username is located and how it can be deleted ? Thanks !
Dan, since my last post (12-days ago), unless an updated version of Mp4Tools has been released, the package is broken (64-bit) windows. It also appears this project may be temporarily abandoned due to a lack of response from any recognized project personnel; to this thread.
After upgrading to the latest version it seems MANY of my converted files - even though I have selected TV Episode in the pre-conversion settings - my metadata tagging software is not picking this up. Prior to this I had zero problems like this. I also make sure that the filename format is consistent (tvshow-S01E01 etc), but this doesn't seem to matter. The other software (Subler) has not been upgraded recently so I'm wondering what if anything I am doing wrong or is it the newer MP4 tools versi...
Jeff, Mp4Tools is currently (obviously) broken. When I have a chance --I'll attempt to remove any entries associated with this failed pkg from the OS \ Registry. I'll not give Mp4Tools pkg another install on a production machine. Regards.
I have tried running Tools on another device, failed immediately. I have tried re-splitting files that worked previously, these also failed. I have tried running files thru an MP4=>MP4 converter to clean any coder issues, then attempted the re-split. No joy there either. Not going to bother attempting to install Tools on my Ubuntu platform if it's not going to run.
More than one user with similar issues? Doesn't completely rule out h/w but makes it a lot less likely. Are there older versions available that maybe still work?
Jeff, I do not believe for a second that your mach is a contributing factor. The specs I posted are not premium --but they are good enough to run the Video Sequence Editor (VSE) within Blender 2.90. If this mach has enough 'juice' to run Blender 2.90 without any crashing, so should Mp4Tools; without crashing/vanishing. I'm waiting for both --other users to share similar experiences, as well as the developers acknowledging (reading) this thread. It appears/seems to be an issue with 64\bit version...
Jeff, I do not believe for a second that your mach is a contributing factor. The specs I posted are not premium --but they are good enough to run the Video Sequence Editor (VSE) within Blender 2.90. If this mach has enough 'juice' to run Blender 2.90 without any crashing, so should Mp4Tools; without crashing/vanishing. I'm waiting for both --other users to share similar experiences, as well as the developers acknowledging (reading) this thread. It appears/seems to be an issue with 64\bit version...
Jeff, I do not believe for a second that your mach is a contributing factor. The specs I posted are not premium --but they are good enough to run the Video Sequence Editor (VSE) within Blender 2.90. If this mach has enough 'juice to run Blender 2.90 without any crashing, so should Mp4Tools; without crashing/vanishing. I'm waiting for both --other users to share similar experiences, as well as the developers acknowledging (reading) this thread. It appears/seems to be an issue with 64\bit version of...
I am trying to get more mileage from my workstation by switching to Ubuntu. I see that there are source files for Linux - which I have downloaded - but am now at an impasse. My limited experience with command line O/S is Solaris from many years ago. Is there a reasonably straight-forward approach to installing these amazing tools on an Ubuntu platform? Any pointers, suggestions or hints would be appreciated. Thanx!
I have been experiencing this myself, assumed it was my (aging) hardware. When attempting to split files over 4-5Gb the Splitter will show a brief pinwheel then vanish. Until recently the upper limit was 7-8Gb. I suspected my NVIDIA card was beginning to show its age until I saw this. I should get a new GPU anyway.
Mp4Tools\Splitter, worked only one time, now it only crashes under the following circumstances: Win-10 Pro, 64\bit Src files from a NVR: RESOLUTION: 3840x2160 FPS: 15 VIDEO CODE TYPE: H.265 BITRATE CONTROL: VBR VIDEO QUALITY: HIGHEST BITRATE MODE: PREDEFINED BITRATE: 6144 I FRAME INTERVAL: 7 FileSize can be as large as 242\KB (KiloBytes) The following description is the current (failed) behavior of the Splitter tool. After one clip is loaded, the timeline refuses to scrub; cannot find an accurate...
Mp4Tools\Splitter, worked only one time, now it only crashes under the following circumstances: Win-10 Pro, 64\bit Src files from a NVR: RESOLUTION: 3840x2160 FPS: 15 VIDEO CODE TYPE: H.265 BITRATE CONTROL: VBR VIDEO QUALITY: HIGHEST BITRATE MODE: PREDEFINED BITRATE: 6144 I FRAME INTERVAL: 7 FileSize can be as large as 242\KB (KiloBytes) The following description is the current (failed) behavior of the Splitter tool. After one clip is loaded, the timeline refuses to scrub; cannot find an accurate...
Mp4Tools\Splitter, worked only one time, now it only crashes under the following circumstances: Win-10 Pro, 64\bit Src files from a NVR: RESOLUTION: 3840x2160 FPS: 15 VIDEO CODE TYPE: H.265 BITRATE CONTROL: VBR VIDEO QUALITY: HIGHEST BITRATE MODE: PREDEFINED BITRATE: 6144 I FRAME INTERVAL: 7 FileSize can be as large as 242\KB (KiloBytes) The following description is the current (failed) behavior of the Splitter tool. After one clip is loaded, the timeline refuses to scrub; cannot find an accurate...
Mp4Tools\Splitter, worked only one time, now it only crashes under the following circumstances: Win-10 Pro, 64\bit Src files from a NVR: RESOLUTION: 3840x2160 FPS: 15 VIDEO CODE TYPE: H.265 BITRATE CONTROL: VBR VIDEO QUALITY: HIGHEST BITRATE MODE: PREDEFINED BITRATE: 6144 I FRAME INTERVAL: 7 FileSize can be as large as 242\KB (KiloBytes) The following description is the current (failed) behavior of the Splitter tool. After one clip is loaded, the timeline refuses to scrub; cannot find an accurate...
like this 2 little pieces of software, thanks. also no audio on 10.13.6 unfortunately.
Hello, I have 3 angles of GoPro videos to sync. Sometime the cameras stop or run out of batteries or space so, in order to sync them properly, we have to insert blank videos for the parts that are missing. I know that there are "Force Options" under the Options tab that we have to click in order to do this. When I don't do this, the merged video freezes. When I do put checkmarks in the box to force the videos to merge, my video still freezes. Please help with a solution. Thank you LeRoy
This happens on Manjaro KDE. On macos it works without any problem with the same file.
open a mp4 file, the app exits immediately
I used MP4 Joiner without any problem. Though due to its limited supported formats, now I am using Joyoshare Video Joiner. It helps me merge multiple files into one without quality loss.
Hello, Did anybody have this: anytime I try to join 3 or more files, the resulting output doesn't work properly? In this new big file the very first section works, but others randomly don't. For example, if I join from 7 files, 3 or 4 sections may show the video but others either freeze or crash the video player. Never had problems joining just 2 files though. Had to join files by two first, then join those together by two, and so forth... My files are 4K mp4 from an action camera (DJI Osmo Action)...
Hello, Did anybodu have this: anytime I try to join 3 or more files, the resulting output doesn't work properly? In this new big file the very section works, but others randomly don't. For example, if I join from 7 files, 3 or 4 sections may work but others either freeze or crash the video player. Never had problems joining just 2 files though. Had to join files by two first, then join those together by two, and so forth... My files are 4K mp4 from an action camera (DJI Osmo Action) Thanks
Thank you very much for the program!
Although it is a bit late, this happened to me because of the chapters. I had to remove them with a third party tool and then I was able to do the merge.
Abend in MP4-Splitter
Join fail when file name include korean characters
I found the reason, it cuase by # If name include # it failed Plz close that ticked
Join fail when file name include korean characters
I have the same problem. I cannot find a solution.
Let me guess: you can't do anything about these problems, because they are not in your code but in ffmpeg code... I will go then on ffmpeg forum/git... Meantime please close/hide/delete this useless thread... Thanks anyway.
start time for stream 2 is not set in estimate_timings_from_pts
i am trying to use MP4To9ls to split a large video. The difficulty I am having is I cant hear any sound when playing the video so it is hard to place the cut in the right place. Am I missing anything?
As I found out MP4joiner uses the current timestamp for the internally stored "Encoded date" and "Tagged date" (and possibly others?) for the joined video. It should be possible (on demand by the user) to keep the internal dates of the first video for the joined video as well. Can an option be introduced in next release? Which tool allows me to manually adjust the both MP4-internal timestamps? Thank you Peter
Is there a possiblility of importing a txt file with chapter splits instead of manually entering each split. Also, what would be great is if split times where you add the split could be a bigger font. Thanks
When I split one video into two, the first second of the second video only has sound but no visual. The visual only appears from 2s onwards.
I have two images of the same scene playing side by side, presumably at or near the join. How do I prevent this? Videos are exact same resolution. Am I missing something here I should be setting? Any help?
I tried using the progressbar after loading the last part. If I click on play, it plays the part with an awesome speed (2x..6x), can't tell exactly. I pause, I go somewhere into the timeline and I click on play. The app crashes.