The video-conversion tag covers software & formats related to converting videos from one format or container to the other.

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Prevent ffmpg from concealing errors during conversion

I'm experimenting with using Audacity to create glitch videos (datamosh and databend are synonyms). So, I create an AVI, pull it into Audacity as raw data, manipulate the stream, and the save it back ...
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1answer
2k views

ffmpeg - creating DNxHD MFX files with alphas

I'm struggling with something in FFMpeg at the moment... I'm trying to make DNxHD 1080p/24, 36Mb/s MXF files from a sequence of PNG files. My current command-line is: ffmpeg -y -f image2 -i ...
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2answers
4k views

How to rip AVI from VOB using ffmpeg

I am trying to convert a VOB to an AVI. I have ripped an AVI from this VOB before using ffmpeg, but for some reason it's not working this time. This is what I tried: ffmpeg -sameq -acodec copy -i ...
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24 views

How to trim and level the volume of mp4 files from the Windows 8 command line? [on hold]

I want a tool to trim and level the volume of my mp4 videos from the command line on Windows 8. Thanks! I saw an articles about doing this with VLC and FFmpeg, but didn't understand them.
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1answer
80 views

How can I backup a movie DVD?

I'm backing up my DVD movie collection in a portable HDD, both to have a better access to them, and preserve it over time (I've experienced some problems when reading some of them, luckily after ...
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2answers
5k views

MP4 video from Android phone can't be played in Windows

I took a video on my Samsung Galaxy S2 (Android), it's about 3GB and it can be played on the phone. But after transferring it to the PC is does not play when opened with VLC, QuickTime, Windows Media ...
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3answers
388 views

How to convert .avi video that has 1 static image in the video (with sound) to mp4 video with ffmpeg to least possible size?

I've an .avi video (divx) that's at 25fps and it has mp3 audio at 64kbit/s. This video has just one image throughout the entire video. I'm trying to convert this video to mp4 but to make it as small ...
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39 views

I get wrong aspect ratio for images and video converted using ffmpeg

I am trying to convert some old movie files to images (and later to reencode as h.264). The problem is that the resulting images are stretched vertically. Here is the ffmpeg command: ffmpeg -i ...
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3answers
439 views

How to convert a .m4v video/audio file to .mp4 on Windows 7?

Does Windows- 7 already have something that would convert .m4v to .mp4? If not, how would I do that?
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1answer
2k views

Sound out of sync after merging multiple mp4 files with Avidemux

I am trying to join (merge) two or more .mp4 files together, without re-encoding. Here is what I did: Started Avidemux 2.5.5. With File->Open, selected Input1.mp4. I received this message - "H.264 ...
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5answers
2k views

(Batch) converting a video while keeping the original time stamp/creation date

I need an easy way to convert videos to h264 while keeping the original creation date. Right now I'm doing it manually (encode, then edit the date), but it's a super boring task to do when I have 10+ ...
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1answer
43 views

FFMPEG Windows Generate 360p Video conversion failed

Input : "C:/server/ffmpeg/bin/ffmpeg.exe" -y -i C:\server\websites\ps\public_www/media/com_hwdmediashare/files/50/4f/37/4185216cb9bb234fd47ee43bf2122e4f.avi -strict experimental -acodec aac -ac 2 -ab ...
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2answers
1k views

converting a static file to a h264/mp4 stream produces sped up video

I'm building a NodeJS application that converts a static videofile to a streamable video which is being sent to a client (iPad or browser) on the fly (using the fluent-ffmpeg module). Everything is ...
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2answers
8k views

Is there a good, free way to fix broken/corrupt .wmv files?

I've recovered some files from an hdd that weren't supposed to be deleted in the first place, but they have seeking problems/crash the players. Since they have the right size, I'm thinking it might be ...
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54 views

Creating video from set of images on windows with java language

I am stuck making a video from set of images using ffmpeg on Windows. For a single image it is converting into mp4 but for a set of images it failed, I have converted single % to double % with double ...
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33 views

Merging audio and video files of different length using mp4box

I have to merge video and audio file together. Currently I am using this command mp4box -flat -add <video> -add <audio> <outputfile>.mp4 But the problem is, if the video is of say ...
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1answer
392 views

Rip CD/DVD with ffmpeg

Is this possible with ffmpeg? Do you have any links that explain how to do this? I have searched with Google but had not many results. I just want to be able to convert a CD or DVD to MP3 audio ...
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1answer
2k views

Use ffmpeg copy codec to combine *.ts files into a single mp4

I've got a bunch of ts segments described by a single index.m3u8 file: index.m3u8 segment1_0_av.ts segment2_0_av.ts segment3_0_av.ts segment4_0_av.ts segment5_0_av.ts I know they ...
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2answers
25k views

Convert AVI to MP4 keeping the same quality

I want to compress an AVI file to MP4 using an h.264 codec. I could not get the same quality. How can I compress it? Original Video: Original Video Screen: FFmpeg console output (ffmpeg -i ...
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1answer
1k views

FFMPEG video to FLV conversion optimization

I have a video site where users can upload videos which will be converted to FLV format and displayed. Those videos are shown at a size of 420x350. I'm using FFmpeg to convert then to FLV format ...
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1answer
3k views

ffmpeg: Could not find codec parameters for stream 0 (Video: h264) unspecified size

I try to convert a video from .raw to .mp4. For this reason I did download, build and install both x264 and ffmpeg. However, command: ffmpeg -f h264 -i output.raw -vcodec copy output.mp4 fails with ...
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3answers
2k views

Convert video from .mp4 to .ogg

I am using ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers . I need to convert a file .mp4, to .ogg format. I am on Mac OS X, and I have tried this so far: ffmpeg -i ...
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2answers
6k views

Why is converting WMV to MP4 so slow?

I am trying to convert a video from WMV to MP4 with FFmpeg but it takes couple of hours. If I try to convert it to AVI it only takes about 10-15 minutes. ffmpeg version ffmpeg version ...
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1answer
55 views

Edit “Media Duration” metadata on MP4 file

I have some video files which were converted to MP4, but not quite correctly. When I examine one with exiftool, I see these metadata values: Duration : 0:11:23 Track Duration ...
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103 views

FFmpeg “ass” filter not working

I'm haveing a bit of a problem when trying to use FFmpeg. I've mostly been using it to extract clips from videos and such. However, I've been trying to get some subtitles embedded (hardsubs) into the ...
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60 views

HDMI “Video Over IP” hardware

I am interested in using my wireless home network to live-stream video sources such as DVDs, my Raspberry Pi or anything else that is connected to my home receiver. I would like to then send this ...
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85 views

FFmpeg: m2ts -> MKV/AVI/MP4 w/ tri-audio and subtitles

I have a 1080p m2ts file with three audio tracks and a subtitle track. I'd like to convert it to a 720p MKV, or really any format at all, while retaining all three audio tracks along with the subtitle ...
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53 views

How to concatenate MP4 files without losing embedded subtitle or audio tracks?

I have two MP4 files (mediainfo below), one is a short intro scene, and the other is the primary feature. Now, the primary video contains several audio tracks and embedded subtitles. I want to simply ...
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1answer
103 views

Can't convert FLV to MP4 for iPhone with ffmpeg

I'm having issues with converting an FLV to an MP4 that will play on iPhone/iPad via Video-js. It seems that the ffmpeg commands are not converting properly. Here's one of the original commands ...
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3answers
226 views

How to convert MP3 to Youtube-allowed video format?

I have many MP3 files on my website and I have decided to upload them to Youtube, but unfortunately for me, Youtube does not allow me to do that. It requires video format only. How can I convert ...
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33 views

ffmpeg bitrate variating without reason

I got a mp4 video. I just want to split it in 4GB file parts using ffmpeg (to make it writeable on FAT32). C:\ffmpeg\ffmpeg.exe -i "%NAME%.mp4" -n -t %LENGTH% -codec copy "%NAME%_1.mp4" ...
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2answers
4k views

How do I convert WTV (and DVR-MS) files into a smaller standard format?

The external hard drive on my HTPC is almost full and so I'm going to need to convert a large number of the films recorded from the television (in WTV format) into something smaller. At present, a 2 ...
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14 views

Transcoding Video to QuickTime Animation (RLE)

I need to transcode video created using the Camstudio Lossless Codec into the QuickTime RLE format in order to get it to work with some other software. What methods can I use to convert the video? I ...
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57 views

ffmpeg with a streaming input change channels order and indices on different execution

We're using ffmpeg to take a mpts stream by 3rd party and encode it to a webm file. Now Every time I've call the ffmpeg command I get different map of channels for it. For example: Input #0, mpegts, ...
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2answers
779 views

Extract HEVC bitstream with ffmpeg

I would like to extract the raw .265 bitstream from HEVC mkv file. I use this: ffmpeg.exe -i hevc.mkv -an -vcodec copy -f hevc bitstream.265 I got this error: Requested output format 'hevc' ...
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2answers
1k views

Converting flv and mp4 video format to '.ogg' using FFmpeg

I have HostGator VPS server with FFmpeg installed. It allows me to convert .wmv to .flv as well as .mp4 files successfully using the following commands for flv and mp4: ffmpeg -i WantsABath.wmv -b ...
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684 views

Handbrake output directory to include Title folder

I am using handbrake to convert my DVD's to .MP4 and have set the default output path Tools -> Options -> Output Files In here there is Default Path: which I have pointing to my Movies folder ...
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157 views

FFmpeg/avidemux: fix packed B-frames

I'm transcoding some of my old mpeg4 videos (in avi containers) to h.264 with FFmpeg. Basically ffmpeg -i input.avi -c:v libx264 [x264 settings] -c:a libfdk_aac [aac settings] output.mp4 When doing ...
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1answer
1k views

ffmpeg - concatenating two MP4 files results in bad output file

I generated two MP4 files - a five-second intro file, which is created by the script below, and the main video (about one minute long) is created by screen-cast-omatic, both in MP4 format. When I ...
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1answer
132 views

FFMPEG - Convert a video to a timelapse

I'm using ffmpeg in flash builder (Action script 3) to convert a video to a time lapse of the video. I've worked out how to use setpts to do this, but the resulting output file is the same length as ...
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2answers
5k views

How can I get my MKV files to play on a PS3?

I just finished building a video server for PS3 and I am working on converting all of my DVD and Blu-ray to my HDD. For DVD, MP4 files work great, but the PS3 can't play MKV which is what I use for ...
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Is there a way round the video call block on shoretel when within Xenapp

Is there a way round the video call block on shoretel when within Xenapp As far as I know, there is no way to make a video chat session on ShoreTel when I am within Citrix. I can make the video ...
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5k views

Convert swf file to mp4 file using FFMPEG [closed]

I now want to show an html5 video on a html page. Now I have an sample.swf file, I want to convert it to .mp4 or .ogg or .webm file. I have tried: ffmpeg -i sample.swf sample.mp4 But I got this ...
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1answer
168 views

Cutting multi-bitrate MP4 files for Helix Server with FFmpeg

We are using Helix Server in order to distribute Video On Demand (with multi-bitrate) Content among our audience. This means that there is one MP4 file that contains multiple video streams and one ...
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1answer
24k views

Convert any video to HD Video

I bought a PC that has Intel HD graphics card built it, which supports Full HD Video at its best (1080p). But many videos online are not in HD Format (less than 720p). Hence if I need to convert to ...
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1answer
307 views

AVS Video Converter: Frame Size stuck at 848

I am trying to follow Youtube's recommended frame size for 480p which is 854x480 (more info here) Now using AVS Video Converter, when I try to change the width to 854, it keeps going back to 848. ...
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1answer
84 views

FFmpeg encoding part of the video with subtitles

encode part of a file and at the same time add the subtitles for that part. I am using: ffmpeg -ss 00:02:00 -t 00:00:30 -i "path/to/input" -c:v libvpx -crf 5 -b:v 3M -c:a libvorbis -vf ...
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1answer
207 views

Unrecognized option 'b:v' when trying to convert a video

I get "Unrecognized option b:v" when I tried to convert a video. I'm using FFmpeg version SVN-r26402. Here is my error log: Raw Conversion Log Started on 2014-06-29 00:02:02 - 2014 Jun 29 Checking ...
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88 views

Handbrake Not Recognizing Audio Track

I'm working on re-encoding some MKVs into Ipod format so my brother can watch movies on vacation, and I'm running into a problem with Handbrake I've never seen before. I have a MKV of a Blu-Ray I ...
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1answer
117 views

Missing reference frame, slice header decode error

I split this (http://www.auby.no/files/video_tests/h264_720p_mp_3.1_3mbps_aac_shrinkage.mp4) video using mp4box command "MP4Box -split 1 shrinking.mp4" into slices of 1 second each. I have following ...