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

learn more… | top users | synonyms (1)

0
votes
1answer
76 views

Extracting audio from a video file using VLC

I am trying to extract audio from a given .mp4 file to .mp3 format. In Media>>Convert/Save, I have made setting as showed in images attached. Now my problem is: I only get *.ts format as output and ...
0
votes
2answers
92 views

How to include video (video file, not online video!) in microsoft word?

How can I include video (I mean video file that is on my hdd that will be included inside word file, not online video!) in Microsoft Word 2013/2016? I need to include it as a video that can be played ...
1
vote
1answer
31 views

Mencoder mixes 2 different subtitles when “burning-in” an srt subtitle file

I'm using mencoder (version 1.1-4.8 on Ubuntu 14.04) to encode various avi, mp4 and mkv files into smaller .avi files with srt subtitles "burned in" (to view in a portable dvd player that has very ...
1
vote
1answer
447 views

ffmpeg settings for VHS mpeg2/mp2 to H264/MP4 VBR conversion and reducing file size

My input is as follows: Input #0, mpeg, from 'D:\Videos\2015.mpg': Duration: 01:49:08.74, start: 0.220000, bitrate: 4940 kb/s Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, bt470bg), ...
0
votes
0answers
33 views

How to do this ffmpeg command correctly?

I'm new to ffmpeg. I have an input file (input.mp4) I want the video in its first 20 seconds (00:00:00.0=>00:00:20.0) to be flipped horizontally and the last 20 seconds (00:00:20.0=>00:00:40.0) to be ...
0
votes
0answers
24 views

How to export mp4 from Sony camcorder?

I have a Sony HDR-HC5 camcorder, and I'm trying to save a video to a cassette, and then connect it to my PC and save the video as an .mp4 file. Here is what I do: I shoot the video Connect it to PC ...
-1
votes
1answer
31 views

Convert .mp4 video file for playback on camcorder

I have a .mp4 file with MPEG4 for video and MP3 for audio that I need to convert to make my camcorder (a cheap one I got off eBay) play it back, but the only problem is that it doesn't accept anything ...
0
votes
0answers
92 views

ffmpeg video cutting error: out of sync audio

I want to be able to upload a video to a server and cut it if I want to. So, first I encode it: ffmpeg -i input.mp4 -vcodec h264 -acodec aac -strict -2 -preset slow output.mp4 Then I try to cut ...
0
votes
1answer
25 views

Concatenation of files with different codecs attributes?

It shows in the ffmpeg documentation the following code example: ffmpeg -i input1.mp4 -i input2.webm \ -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]" \ -map "[v]" -map ...
1
vote
0answers
38 views

(FFMpeg) Split the video by size after conversion

I have a 5,000MB long video in .mp4 format. I would like to split the video into segments by the size. For example, I set the size to 1,024,000KB, or simply 1,024MB, because I want it to be accurate. ...
0
votes
0answers
118 views

Split MP4 video with chapters into seperate files

I´ve got a few videos which I already converted (with HandBrake) into m4v (ready for iOS devices - sources are deleted) each 2,5 hours long with chapter marks and I want to cut them into seperate ...
0
votes
0answers
113 views

convert live hls stream into rtmp stream

one of our partner is exposing a live HLS stream. I want to know if there is any tool that can take hls live stream as input and convert it to rtmp live stream and ideally push that output to some ...
0
votes
0answers
30 views

Writing ffmpeg result to pipe (e.g. stdout) produce different file than when writing to file

I convert video to another format using ffmpeg: ffmppeg -i somefile.*** -f avi somefile.avi and everything works fine. But i need to write output to pipe, so (simplified example): ffmpeg -i ...
4
votes
0answers
241 views

How to correctly use x265 lossless parameter with avconv

x265 has a lossless mode which is used for ultra-high bitrates with zero loss of quality. I tried using this mode with avconv as follows: avconv -i input.mp4 -c:v libx265 -x265-params lossless -c:a ...
1
vote
0answers
43 views

Handbrake: Best IPhone playable Settings for a 2:1 Aspect Ratio Video

Original Video Settings (360 Panoramic video): H264 Bitrate: 15000 kbps FPS: 48 Resolution 3820 x 1910 My current settings in handbrake are: Apple TV3 Preset Width: 1920 Height: none Anamorphic: ...
1
vote
1answer
316 views

how to convert a video to a MOV file with h264 yuvj420p and pcm u8

I want to convert some videos to be playable on a Canon digital camera. The videos from the Canon PowerShot camera have the following specifications: Video: h264 (Constrained Baseline) (avc1 / ...
0
votes
1answer
43 views

How to do a variable time scale?

I have a video where I would like to change the time scale of a video based on ratios read in from a file. I have figured out that to double the speed for an entire video I could use the setpts ...
0
votes
1answer
389 views

Handbrake doesn't keep Hi10p and HEVC after conversion

Handbrake is a great tool for me to convert media files. I noticed that my original video file (mkv, 1080p, Hi10p, HEVC) lose some quality after conversion (mp4, 1080p, 8-bit, AVC). What I've ...
1
vote
0answers
113 views

FFMPEG: Convert while file is being uploaded (an incomplete file)

I am designing a media upload function using HTML5. My design looks like this at the moment: User selects a file for upload FileApi (JS) reads this file chunk by chunk and uploads it to the server ...
0
votes
2answers
175 views

Best Practice/suggestions for capturing/encoding/formatting VHS video?

As a personal project for my family I recently purchased myself a Composite-USB converter in order to preserve many of the family's old home movies on VHS. Now, the proprietary software that the ...
2
votes
1answer
142 views

Avconv only converts a single frame when converting a GIF to WebM format

I am trying to convert GIF images into WebM videos with avconv, but I only get a single frame into the WebM video. Example GIF: I use the flowing command: avconv -i horse.gif -c:v libvpx -qmin 10 ...
0
votes
0answers
168 views

How to transcode a video to XviD format with GStreamer?

I'm trying to script a GStreamer pipeline to transcode videos to my Meizu M6 miniplayer. I found some scripts to do the transcoding with mencoder, but would like to do that with GStreamer. The device ...
0
votes
1answer
59 views

overlay with video offset not starting audio with same offset

I have a video with audio (overlayvideo.mov) that I'm overlaying over another video (basefilem.mp4) and I'm starting the overlay at 20 seconds. The output (finalvideo.mp4) looks great, but the audio ...
0
votes
0answers
639 views

using ffmpeg to repair corrupted MP4 video files from Xiaomi Yi

did not know wether to create a new thread or to post in an existing one. Decided for the first option, as my case seems to be a little different as I do not have one video corrupted but plenty of ...
0
votes
1answer
2k views

Upload Video to Instagram made with Windows Movie Maker

I've made a video using Microsoft's Windows Movie Maker and I've tried saving it as "Recommended for this project", "Android Phone (Medium)" and iPhone. It saves the video as a .mp4 using the H.264 ...
0
votes
1answer
26 views

Compress videos to a specified file size?

I have 3 video files that are 50 MB, 100 MB and 150 MB. I want to compress each to 25 MB each. I understand the larger videos will sacrifice more quality. Is there any software that can compress ...
0
votes
0answers
18 views

Lossless splitting and concatenation of video

I would like to split a video file into several video files in a way that would make it possible to recreate exactly the same original video file later. Can it be done? The videos I have have the ...
0
votes
0answers
9 views

how to batch convert MP4 files to dvd format (video_ts) [duplicate]

Does anyone know how I can convert (several hundred) MP4 files TO DVD format (video_ts and audio_ts files), and preferably then have them in iso files ready for burning? I have googled and can only ...
-2
votes
2answers
766 views

ffmpeg how to convert mkv vp90 to mp4 h.264?

i would like to ask how to convert an .mkv VP90 to an mp4 h.264 ? I downloaded .mkv video from youtube and it's using VP90, VLC is unable to read VP90, so i have to convert it to my usual H.264, in ...
1
vote
1answer
68 views

How can I automatically segment a mp4 video based on a list of frames

I have a 7 hour long h.264 video made up of 1600 shorter videos and I have a csv file with a list of frames at which I need the longer video to be cut at. Is there any way that I can automatically ...
0
votes
1answer
113 views

ffmpeg to convert videos into one

ffmpeg has a wiki on Concatenate at https://trac.ffmpeg.org/wiki/Concatenate It does concatenation without any conversion. I'm wondering if it is possible to do the concatenation WHILE doing the ...
0
votes
0answers
109 views

Convert videos to MP4 iPad (h264 and aac), but leave video codec alone if h264 already

I want to batch convert video files with different extensions and convert them to MP4. If the video codec is already H.264, I want to copy it and convert the audio only if it is AC3, MP3, or anything ...
1
vote
0answers
46 views

Why concating two videos with ffmpeg (5s and 33s) produce 4m34s video in slow motion

I am developing a service to concat a video (mine) with a another from a user (he/she upload it) and return to user. First I tried to use Concat demuxer because I don't want to re-encode videos if it ...
1
vote
0answers
288 views

Corrupt MP4 file: ffmpeg codec, global header, and dvvideo errors. Can it be repaired?

So, I have a number of corrupt MP4 files (some corrupt AVI files, too, but I believe that's a different problem). They seem to have gone corrupt when I had an external hard drive that they were on ...
0
votes
0answers
93 views

mkv to mp4 automatic conversion

I have two scenarios here that I'd like to overcome: 1- I have a folder that's full of folders that are full of mkv and mp4 files. I want to use Handbrake, VLC or any other appropriate program to ...
1
vote
3answers
842 views

Having trouble understanding ffmpeg -map command

I'm trying to copy video/audio from an mkv container to mp4. When I run ffmpeg -i input.mkv -c:v copy -c:a copy output.mp4 I'm given no video with polish audio. There's only one video stream, stream ...
0
votes
0answers
187 views

How to convert a video from 2D to 3D?

I have some videos and movies that I would like to watch with my Google Cardboard. However, I only have them in mp4 format. How can I convert them such that it can be watched with Google Cardboard?
3
votes
2answers
2k views

FFMPEG mkv to mp4 conversion loses subtitles

Currently trying to convert my mkv library to mp4 (Iphone 6 plus) I've managed to get to mkv to mp4 conversion correctly, but I'm missing the subtitles part (SRT) Here's my code: dir/b/s *.mkv ...
1
vote
0answers
43 views

Getting same quality with “baseline profile”?

I have a couple of videos taken in H.264 using the high profile and I want to convert them into a baseline profile while keeping the same quality and size so, that they can be easily played on an ...
0
votes
0answers
354 views

I'm trying to extract frames from an MP4 using VLC; it is only extracting frame one

I'm trying to extract frames from an MP4 generated by a Swann security camera using VLC. I'm using the following command line string: vlc C:\video\01.mp4 --video-filter=scene --vout=dummy ...
1
vote
2answers
442 views

Why are h264/ac3/mkv videos showing up as “motion jpeg” with ffmpeg?

I use xmedia recode, which uses ffmpeg, to convert these videos using "copy" video and "convert" ac3 -> aac, with an mp4 container. For most videos this works fine, and is really fast. However some ...
0
votes
0answers
846 views

Microsot Visual C++ Runtime Library Error upon Converting a File through VLC

I always used HandBrake for video conversion (compression) which works great, but today I found an answer on quora which explains how to convert videos through vlc, when I converted through VLC, the ...
0
votes
1answer
269 views

ffmpeg changes audio bitrate when transcoding from MKV to FLV

I have one file - sample.mkv ========================================================= File: sample.mkv Width: 854 pixels Height: 480 pixels Aspect ...
0
votes
1answer
516 views

Basic conversion of sequence of images to avi with avconv

I'm trying to convert sequnce of images to small avi. Each image should be shown 2 seconds. I'm using this basic command sudo avconv -r 0.5 -i test%05d.jpg out.avi I get the output, but it shows ...
9
votes
2answers
8k views

What is the CORRECT way to fix keyframes in FFMPEG for DASH?

When conditioning a stream for DASH playback, random access points must be at the exact same source stream time in all streams. The usual way to do this is to force a fixed frame rate and fixed GOP ...
1
vote
1answer
696 views

How to generate thumbnail image from HandbrakeCLI command during conversion?

I have ffmpeg command line that creates thumbnail image from a video. This works nicely as I can choose the timestamp and the size of the image that I want. -r 1 -t 1 -ss 2 -s cga "%2/%32.jpg" This ...
1
vote
2answers
770 views

Convert all files in directory using FFMPEG

I'm trying to write a script to convert all the files in a directory to m4v, whilst trying to keep similar (if not the same) quality and compress the file to reduce the overall size. I've pieced ...
1
vote
0answers
272 views

FFMPEG: Windows binaries with globbing (libavformat) support?

I am struggling to get ffmpeg to combine a bunch of images in to a video which have a format with a full 17 digit timestamp. 17 digits is well beyond what -i %d will support. So I want to use ...
2
votes
0answers
168 views

Copy creation_date metadata when converting video with ffmpeg

I want to convert a bunch of old videos to H.264 to save space, but ffmpeg always drops the creation date, no matter what fancy -map_metadata variations I use. This is obviously a huge dealbreaker for ...
0
votes
2answers
211 views

Is there a way to generate left and right camera views from one camera video

I have only one video available from one camera. Is it possible to create left and right camera views from one camera video and could be viewed from oculus rift-VR. No need for audio