Ffmpeg Duration Is Wrong. When I play it on VLC, the progress bar reaches the end, but

When I play it on VLC, the progress bar reaches the end, but the video still plays continuously. The input video was less than an hour's Check the video with fprobe -show_streams note how many frames there are. When I segment a video file into 5-second chunks: ffmpeg -i input. Description Summary of the bug: When extracting audio only from a a/v file the duration gets I'm using this code to speed up some videos: "C:\\Program Files (x86)\\ffmpeg\\bin\\ffmpeg. mp4 Here is a folder with a flac file, a bad mp3 file (wrong length) and a good mp3 file. 2) on MacOS terminal. 88 output video duration :00:03:57. The file plays fine in VLC for its actual ffmpeg 'Invalid duration specification for ss: -t' error when passing arguments by grimmer » Sun Feb 05, 2017 1:47 pm I have a python script, that generates a ffmpeg command for creating a slideshow with the "Ken Burns" filter. avi -acodec libvorbis -vn sound. exe -i in. If you mean something else then please indicate what do you correct, I was using -c copy while creating a clip from MKV using ffmpeg. ts it gives me wrong start time which is way out of the range. The output file trims to the correct duration but the filesize is too I am using ffmpeg to cut out a section of a large file like this: ffmpeg -i input. It gener I have a wav file that has the incorrect duration in the file properties (in windows Right Click > Properties > Click Details tab) and when I get the duration it shows the incorrect one from the file properties. Hi thought I had replied to this thread, but I did find the solution by using the -s -ss options to simply cut the length of the video and now it's playing lovely The length is probably written in a header incorrectly. 950000 stream|duration=20111. sum_duration_files != duration ( concatenation of files ) In particular I'm trying to use ffmpeg to capture frames from a video file, but I can't even get the duration of a video. My ffmpeg command is: ffmpeg -i rtmp://192. sh Which has hardcoded input path values that take an I converted an HEVC file to H264 by ffmpeg, but result in wrong duration. mp4 -c copy -t 00. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. Please help me! From the ffprobe output it looks like your original file doesn't have such a tag, while the new file does ("encoder: Lavf" is part of it, added by FFmpeg). 95, when the real recording is only ~2 hours long. But when I run this file through ffmpeg using ffmpeg -i myRecordedFile. Hi thought I had replied to this thread, but I did find the solution by using the -s -ss options to simply cut the length of the video and now it's playing lovely Hi all. Somehow, for some reason, ffmpeg will The simplest way to demonstrate how broken the file is is that ffprobe reports a duration of 17:57:32. While increasing wrong duration when convert mp4 Description ¶ The output file has the double duration : Source video duration :00:01:58. When I convert the file to MP4 using FFMPEG the @LordNeckbeard ffmpeg does provide an accurate duration after the transcoding process is complete, but for my application I can't afford to store the result before I begin returning it Now I need a command with ffmpeg that can make my video to be extened to my sound duration. 10 Similar error for -to and -ss. everytime when I try to access it with pFormatCtx->duration I'm getting 0. mp4 -ss 76 -t 10 -c copy -an out. If you wanted to mean "duration" then you are wrong, the duration is always the number of frames times the timebase. From that and the knowledge of the total duration it can be possible to figure out the correct framerate. mp4 -c copy -f segment -segment_time 5 -segment_format mp4 chunk-%d. mp4 -codec copy out1. The strange fact is when i export the same converted file with audacity without change Metadata: handler_name : SoundHandler stream|duration=20111. This makes me Hello, i have a TS MPEG4 file that has duration 10:33, but actually it has duration 10:22. Furthermore, if I cut out the first ~300kb from the file (a When creating a video from an image sequence using ffmpeg, I'm finding that I get a same length video whether encoding it as 30fps or 60fps. wmv -ss 60 -t 60 -acodec copy -vcodec copy output. ts file. ogg The output: ffmpeg -i video. mp4 Each chunk is exactly 5 seconds Wrong video duration and fps Asked 4 years, 1 month ago Modified 4 years, 1 month ago Viewed 2k times 1 I found a broken video that has a negative duration when I open it up in vlc or chrome, but it's metadata seems normal, I also found a webm that has a length of zero but the actual To get a lot of information about a media file one can do ffmpeg -i <filename> where it will output a lot of lines, one in particular Duration: 00:08:07. 10, even though video. The file size is 6. When I set hls_time to 5 seconds, the playlists for those respective cameras I have an . 915000 So it's detecting a duration of about 5h30m according to that. When I set hls_time to 5 seconds, the playlists for those respective cameras I can seek audio on seeking bar of player. ffmpeg -ss 1:40 -t 0:40 -i "1. g : 20,1s instead of For some reason the duration always gets written as half of the actual video duration in the playlist. Refer to time= in the next-to-last While using -qaac can improve the quality of the encoded AAC audio stream, it is unlikely to help with issues related to the duration of the output file. For example when I open one of them (which is about 20 minutes) by vlc media player I see something like this: This is very #2938 new defect Incorrect start time and duration when transcoding audio-only (-vn) from A/V files. Unfortunately there is no such thing as a validator (like for web standards) so you can't know for sure if a file is correct. mp4 has a framerate of 30. I've made some But for some reason, the output duration is incorrect, and keeps the duration of the original video file, but not the added 2+2 seconds of pure black. So I would expect the opposite ffmpeg -i clip. 000000, bitrate: 2080 k I have a number of songs in my Music library that display incorrect duration values, and so play only partially in Clementine. If I skip audio with '-an' parameter, output file duration is 2 I'm using ffmpeg to segment a video by start/end times. One thing that I noticed is that the duration of out. When duration is bigger like Hi all. My I want to trim a video with the following command: ffmpeg. mp4 the resulting file size is roughly a quarter When transcoding movies from an AVI to mp4 sometimes FFMPEG sets the "Source Duration" incorrectly. How do I fix this? Is Re-export Intro. Furthermore, if I cut out the first ~300kb from the file (a The simplest way to demonstrate how broken the file is is that ffprobe reports a duration of 17:57:32. Try . Actual turns out to be: 11m19s duration. 272911 Is there a way to change the start value of a video file? Get duration by decoding You can also use ffmpeg to get the duration by fully decoding the file. I use ffmpeg to merge 3 files into one with below command: ffmpeg -f concat -i "file. 5 x longer then the original. exe" -i "C:\\Users\\Agustín\\Downloads\\Presentación. 10 -map 0 output. mp4 -vf "scale= My only thought is that it has something to do with the command itself being so long. Also, the stderr output from ffmpeg is not intended for machine parsing and is considered CODEX Troubleshooting Tips for FFMPEG (Mac) FFMPEG is a powerful tool for working with video and multimedia files, but sometimes it can The output file has the double duration : Source video duration :00:01:58. This is the command I used. 98, start: 0. Today i discovered that some of the calculations were wrong. 82:1935 -f segment -strftime 1 -segment_time 10 ffmpeg -y -i "{inputFile}" "{outputFile}" The converted video looks fine, however the duration of streams in the converted file and the input file doesn't always match. But actual file keeps playing beyond 11m19s even though timestamp When I open the file in a video player, it erroneously reports a length of 36 minutes, however it keeps playing to the end just fine. However, ffmpeg returns this when trying to work with it; [aac @ 000001187e6944c0] Estimating duration from bitrate, this may be inaccurate Input #0, aac, from 0 and 1 seconds are multiples of the frame rate (30 FPS) so I wouldn't expect ffmpeg to round to another frame resulting in a duration other than 1 second. Then I have this file split_by_silence. The program has been designed to handle command line I want to cut a video using ffmpeg. I know I didn't record for 40 + years. 2. webm -c:v copy -f webm clip-tsfix. xxx. 168. 0+720,0 -vf setpts=N/FR/TB -vcodec libx264 -y I have a file that when I run ffpmeg -i on it will display a time of 351909:41:29. ts Duration of the result file is 1m 43s. mp4 I get: Invalid duration specification for t: 00. mp4's framerate is 30. Or, less ideal due to generation loss, is to re-encode Intro. While increasing How to fix the difference between duration of ffmpeg input and output? Ask Question Asked 5 years, 2 months ago Modified 2 years ago It just prevents ffmpeg from writing xing frame info, thus forcing players to recompute the duration. Confusingly, the duration is 0. I am trying to record a H264 video using ffmpeg. 11. ffmpeg -nostdin -video_size 720x878 -framerate 24 -f x11grab -i :0. mp4" The duration of I have the raw video data from a video stream (no audio) and the duration when I play the raw video in VLC is ~67 seconds. Why is ffmpeg creating a different duration for the file? ffprobe output of wrong duration when convert mp4 Description ¶ The output file has the double duration : Source video duration :00:01:58. When clip duration is small like 2seconds or 10 seconds then it was not picking up video stream. In Banshee and some other players they show different For at least 2 DVD, when using dvd2concat, ffmpeg return a video that is 1. 6 GB, but the video length is only 12 minutes long. ogg ffmpeg versi I have a digitized 8mm 16fps HEVC . ) its duration as 13:28:20. Abstract: This paper explores the issues encountered when modifying video playback speed using FFmpeg, specifically focusing on incorrect duration metadata. I'm creating a video from a list of images, where images should have different durations. Is it possible that ffmpeg is not able to parse the command correctly because it is so long? I'm But getting the duration is fine but when you have a video file like this with a wrong duration it ofcourse wont let me generate a thumbnail and it gives me the wrong duration output too i I have some webm files which lack duration/length. I would like not to reencode my videos with sound again (in sense that I would need to put my mp3 file I am trying to record rtmp stream to file, splitting every 10 seconds. mp4 with ffmpeg: ffmpeg -i Intro. For example, I have a set of time [ [0,2], [2,4], [4,6]], and I'd call ffmpeg 3 times here to create the three 2 second videos at times 0, 2, and 4. m3u8 file has a wrong duration (e. 16. For example, I have 10 images and want to create an 1-minute video at 30 FPS. When running the following command, out. 76 （video's duration is double ，audio's ← Previous Ticket Next Ticket → Opened 5 years ago Closed 5 years ago Last modified 3 years ago #8420 closed defect (fixed) Of course, in my output I have noticed that the duration in seconds is exactly duration_ts / time_base: 5247360 / 90000 = 58. txt" -vcodec copy -acodec copy "endfile. 1. Given, in my current case, 6329 image I'm converting mpeg video to ogg audio file using -vn option: ffmpeg -i video. 00. There should be a way to get the correct frame/timing information written. ts" -c copy 100sts. Output file should be: 12m10s duration. mp4 that I'm trying to split into clips using ffmpeg (5. 024 seconds more Using a command like: ffmpeg -i input. But that doesn't match the nb_read_frames. Can someone tell me how to repair that TS file so it has I was using ffmpeg to compress and scale a collection of videos that had picture-based subtitles, and getting video output that was very long. Any suggestions on what would be the best way to fix this? I appre 0 With "wrong total duration" I mean a total duration different from the sum of individual duration of audio files. (I presume) this works Why is the duration changed? MP3s may not display accurate duration, depending on whether a Xing header was written, and whether the MP3 encoding is Variable Bit Rate (VBR) or Another thing I tried is the command ffmpeg -i file. mp3 which also shows the correct time duration and bitrate. With ffmpeg You can use ffmpeg to get duration by decoding the input: ffmpeg -i So again ffmpeg stubbornly refuses to "play" past the duration. FFMPEG - Transcoding webm to mp4 - wrong duration Ask Question Asked 4 years, 11 months ago Modified 4 years, 11 months ago I'm facing an issue using ffmpeg to convert video, precisely mp4 video => Http Live Streaming (HLS) Once converted to HLS, the . If I Description I have a VOB file, where I need to read it's duration and ffmpeg says it has duration over 90000 seconds. 000000 The above commands are from FFmpeg Wiki: FFprobe Tips. Here is the current script (still a WIP, but I am stuck at the I used to calculate the duration of MP3 files server-side using ffmpeg - which seemed to work fine. For some reason the duration always gets written as half of the actual video duration in the playlist. wmv The -ss part works fine but the -t is ignored. The input file was encoded to force key frames every 5s as follws: Abstract: This paper explores the issues encountered when modifying video playback speed using FFmpeg, specifically focusing on incorrect duration metadata. The null muxer is used so no output file is created. 64. I guessed there is no true FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It looks like if you preview the music in google drive, it also plays the wrong length for the bad mp3 Why does FFmpeg segment_times create webm files with incorrect duration and start times? Ask Question Asked 11 years, 10 months ago Modified 10 years, 10 months ago with duration by 10s, 178s, 13s. Thus If I copy the input stream with ffmpeg -i out. This works, except the images do not have the correct durations in the resulting video. I I have some audio recorded in Audacity 3. mp4 from your editor to match the attributes of video2. This messes up playback on How can I limit the video duration for a given video? For example, if we are uploading one video that should not exceed more than 5 minutes, I need a command in FFMPEG. I'm not really sure what next steps I +0 ← Previous Ticket Next Ticket → Opened 10 years ago Last modified 2 years ago #5448 reopened defect Usually this goes without a hitch, but in this case the 30-min episode lists (in ffmpeg -i, VLC player, Plex, etc. 76 （video's duration is double ，audio's duration is correct. 76 （video's duration is double ，audio's How to fix a video with wrong/corrupted duration using ffmpeg Recently, I received a video captured by a Logitech webcam that was around an It just prevents ffmpeg from writing xing frame info, thus forcing players to recompute the duration. avi -acodec libvorbis -vn -y sound. ffmpeg report the good duration in the stream info at the start, but the wrong duration at the end of The aac audio file is 160kb/s CBR. But, Duration is wrong and generated aac file can not play on VLC player. Correct value should be between 800-900 seconds. Plays also fine if I open the mp4 in Firefox. HEVC file duration is 3m32 but H264 file is 9h long. For example, my file's duration is 45 minutes but ffmpeg returns start 18910. It correctly For examples ee How to extract duration time from ffmpeg output? and How to get video duration in seconds?. mp4. So， the video 1 I'm using the following command to record the screen with ffmpeg. mp4 file that I'm trying to segment into equal duration clips of 5s each, but I cannot exactly achieve this. Is it possible that ffmpeg is not able to parse the command correctly because it is so long? I'm 4 I am recording a live stream to . 3 that I have exported as an mp3 and a flac. webm This fixed the timestamps, but now my video still has a metadata tag claiming the total duration is 5 minutes, not 10 seconds. It seems to me that problem is FFmpeg is a free to use and open source program that is used for handling Video, Audio, and other multimedia streams. mp4 should My only thought is that it has something to do with the command itself being so long. +0 ← Previous Ticket Next Ticket → Opened 10 years ago Last modified 2 years ago #5448 reopened defect I finished a recording and the output file is about the size I would expect (16gb), but the . mp4 which exactly means, copy 10 seconds after 76 seconds, and don't copy audio. 304. But actual file keeps playing beyond 11m19s even though timestamp Result: 30. mov file's duration is only 32 seconds. In order to do this, I am grabbing frames from a video source and pushing them into a pipe that FFmpeg reads from and afterwards My input file and output files have different durations even though I am only adding rotation metadata to my file. The duration of the output file is typically determined After a few attempts with ffmpeg and mkvtoolnix, I found a way to fix it: firstly use mkvextract to extract the raw AAC and H264, and then use mkvmerge to merge them back.

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