Ffmpeg fix timestamps

Ffmpeg fix timestamps

Search everywhere only in this topic. Advanced Search. Classic List Threaded. Kyle Schwarz. Hi, when trying to encode from a. I tried to do a normal encode: ffmpeg -i 'Infile. Baptiste Coudurier Re: "error, non monotone timestamps". Kevin Oberman. In reply to this post by Kyle Schwarz. In reply to this post by Baptiste Coudurier Andy Sheen. In reply to this post by Kevin Oberman. There are several bugs in ffmpeg relating to straight copying.

There are many times rotterdam new york ship it could simply use the existing parameters for the output but instead substitutes inane values, then errors. Lazy groidism is rampant.

ffmpeg fix timestamps

So, the solution is to explicitly code both streams, not using "copy". I had this problem with a number of streams, because of "-acodec copy". Adding "-acodec libmp3lame" immediately solved the problem. Nicolas George Where are your bug reports? This is not a solution at all. In reply to this post by Zarathustra. What is your full command line and console output?Privacy Terms.

Download Forum current. Quick links. I am using ffmpeg Windows to re-stream a particular Live TV stream to our edge streaming server, and it works well for a few hours, but then the video begins pausing and freeze. In ffmpeg begin the see the following error repeat: Code: Select all [flv a72a60] Non-monotonous DTS in output stream ; previous:current: ; changing to This may result in incorrect timestamps in the output file.

Code: Select all ffmpeg. I'd probably suggest re-asking your question on the ffmpeg-user mailing list. Sorry to not be of more help. I am awaiting approval to post to that list. Something interesting I found in the logs, when the error actually starts Also notice the "current" value is negative and then slowly climbs back to positive values.

Maybe I need to try a more aggressive approach by dropping frames to catch up? Thanks for any insight. Have you found the solution to this issue? I'm facing the same problem here To be fair, I am using a nightlybuild of ffmpeg for x, not x but it has actually been great for one particular set of files I'm converting besides one small issue.

I'm expereincing the same problem. Code: Select all Board index All times are UTC.Videos need editing or repair to improve quality and enhance the viewing experience. Sometimes, however good in quality, you may just want to edit, cut, sharpen, rotate, add sound or text over them.

To do such tasks, there are a plethora of video editing tools. But unlike paid editing platforms, which may not let you do all the activities, FFmpeg is a complete software project for multimedia files. It has a vast suite of libraries and programs which lets you convert, edit, repair, and improve your video formats. FFmpeg multimedia framework has its distinct fan following too, owing to its multi-facet utilities.

Everyone from end users to developers use open source FFmpeg to create, convert, record, cut, stream, encode, transcode, mux, demux, and so much more to their videos. It can also capture and encode in real-time from various sources such as a TV capture card. FFmpeg comes with a wide range of audio and video codecs support.

Yes, it can. You can try to repair your video files using various command lines in FFmpeg. But this could be a little tricky for beginners.

How to RECOVER CORRUPTED MP4 Files for FREE using FFmpeg and recover_mp4

You should have knowledge of various command lines to perform different tasks in FFmpeg. Also, the success of repair of corrupt video files depends upon what issue you want to fix and how badly the file is damaged. To use FFmpeg you need to open a command prompt window and give specific command lines to fix corruption or inaccessible video problems. Note: Keep your file name exactly the same including the upper and lower case in the command line. Once the process finishes, you can see the new video file on the Desktop with the file name that you entered here as Birthday.

To check for corruption in the input.

ffmpeg fix timestamps

First extract all the frames into JPEG images using command line:. Now calculate the frame rate of the output video to match the audio and video by diving number of images formed by the audio duration:. Here by This is the frame rate for your output video. It is necessary to use the exact number. The free demo version of the software is good enough for evaluating whether a video corruption issue can be resolved. Are you searching for software to repair broken video files?

Stellar Repair for Video fixes almost all types of video corruptions that occur during editing, shoot, converting to a different format, or on the transfer of videos, etc. It repairs corruption in frames, sound section, header, etc. You can play your videos that turned grainy, choppy, jerky, broken, frozen or out of sync, etc. The software can also repair video files created through the FFmpeg program.

Moreover, you do not need to fret over the repairing process. The advanced algorithms of the software easily fix any damage in the video files.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up. Some timestamps are not correct for reasons Can I process the file and have only the timestamps regenerated without reencoding?

I've tried this. As an input option, ignore any timestamps stored in the file and instead generate timestamps assuming constant frame rate fps. I've also tried the suggestion mentioned here at the bottom:.

This also doesn't change the timestamps in the outfile.

"error, non monotone timestamps"

Any other way to perform this task? Timestamps are kind of metadata, so I think it should be possible somehow.

ffmpeg fix timestamps

It turns out that the -r option only works for raw stream data. This can be an H. The -vsync option is used to control output timestamps, not the -r option. The drop parameter resets input timestamps and generates new ones. The -r option before the input tells FFmpeg to read the specified number of frames in constant mode. Sign up to join this community. The best answers are voted up and rise to the top.

Home Questions Tags Users Unanswered. FFmpeg: recreate timestamps without reencoding Ask Question. Asked 3 years, 3 months ago.

Active 2 months ago. Viewed 15k times. I've tried this ffmpeg -r 25 -i infile -c copy outfile but the timestamps in outfile are still like in the original even though the documentation for"-r" says: As an input option, ignore any timestamps stored in the file and instead generate timestamps assuming constant frame rate fps.

Show the full console output of your first command. However, I think it's an abstract question and doesn't require specific material to answer.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Video Production Stack Exchange is a question and answer site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation.

It only takes a minute to sign up. When I play this videos with VLC or other players they plays till a certain point and then instantly exits. Sometimes I can try to skip the bad part but I could meet another bad sector and have an insta-quit again. Can I fix this problems I suppose stream and keyframes related with ffmpeg and maybe in a -c copy fashion so I haven't to recompress everything? What I want to achieve is a full lenght video where the missing parts are skipped, I prefer a glitch rather than having my videos crash.

If parts of the file reside on physically bad sectors, or for whatever reason, the OS cannot serve the whole file to FFmpeg, then naturally FFmpeg can't do anything about that. You should get a utility which can ignore those portions and write the salvageable parts to a new file, like ddrescue.

Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 3 years, 11 months ago.

Active 8 months ago. Viewed 83k times. It happened me many times that I could end up in corrupted video files: video downloaded from official sources but with torrent and for some reason not all the pieces are there in. Question is: Can I fix this problems I suppose stream and keyframes related with ffmpeg and maybe in a -c copy fashion so I haven't to recompress everything?

See also: superuser.

How to Repair Corrupt Video Files using FFmpeg

Active Oldest Votes. Gyan Gyan This works, but fails without -c copy. Surprising that it doesn't work during recode. Even with that, I'm still getting Invalid data found when processing input -- and ffmpeg gives up. Apr 13 '19 at Nice solution What if it's not even there? In the search of a better answer a possible way could be: ffmpeg -i video.

Works for me every time I have some kind of issue with the meta data, timestamps, or container info. And it's very fast, usually faster than x playspeed. This command saved my butt, to be frankly.

Can ffmpeg fix Timestamp inconsistencies in mpeg2 files?

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Q2 Community Roadmap. The Overflow How many jobs can be done at home? Featured on Meta.Note that this filter is not FDA approved, nor are we medical professionals.

Nor has this filter been tested with anyone who has photosensitive epilepsy. FFmpeg and its photosensitivity filter are not making any medical claims. That said, this is a new video filter that may help photosensitive people watch tv, play video games or even be used with a VR headset to block out epiletic triggers such as filtered sunlight when they are outside.

ffmpeg fix timestamps

Or you could use it against those annoying white flashes on your tv screen. The filter fails on some input, such as the Incredibles 2 Screen Slaver scene. It is not perfect. If you have other clips that you want this filter to work better on, please report them to us on our trac. See for yourself. We are not professionals. Please use this in your medical studies to advance epilepsy research.

If you decide to use this in a medical setting, or make a hardware hdmi input output realtime tv filter, or find another use for this, please let me know. This filter was a feature request of mine since FFmpeg 4. Some of the highlights:. We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master. FFmpeg 3. This has been a long time coming but we wanted to give a proper closure to our participation in this run of the program and it takes time.

Sometimes it's just to get the final report for each project trimmed down, others, is finalizing whatever was still in progress when the program finished: final patches need to be merged, TODO lists stabilized, future plans agreed; you name it. Without further ado, here's the silver-lining for each one of the projects we sought to complete during this Summer of Code season:.

Stanislav Dolganov designed and implemented experimental support for motion estimation and compensation in the lossless FFV1 codec. The design and implementation is based on the snow video codec, which uses OBMC. Stanislav's work proved that significant compression gains can be achieved with inter frame compression. Petru Rares Sincraian added several self-tests to FFmpeg and successfully went through the in-some-cases tedious process of fine tuning tests parameters to avoid known and hard to avoid problems, like checksum mismatches due to rounding errors on the myriad of platforms we support.

His work has improved the code coverage of our self tests considerably. He also implemented a missing feature for the ALS decoder that enables floating-point sample decoding. We welcome him to keep maintaining his improvements and hope for great contributions to come.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Video Production Stack Exchange is a question and answer site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation. It only takes a minute to sign up. I am using below command to push the video to Wowza server, since we are pushing raw H. While executing the FFmpeg command, there is a warning showing as. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly.

Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Timestamps are unset in a packet for stream 0. Fix your code to set the timestamps properly Ask Question.

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Asked 1 year, 9 months ago. Active 9 months ago. Viewed 14k times. While executing the FFmpeg command, there is a warning showing as [rtsp 0xbbda0] Timestamps are unset in a packet for stream 0.

Fix your code to set the timestamps properly IS there any option available in FFmpeg to add timestamp in RTP packet and push the video and audio? MarianD 1, 2 2 gold badges 8 8 silver badges 23 23 bronze badges. Active Oldest Votes. Mike Brown Mike Brown 1 1 bronze badge. The resulting file synced up perfectly with the subtitle. If your read speed is different than stream framerate, output playback speed and audio sync will be wrong.

Add -re before both video and audio input to avoid that. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

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