Questions tagged [conversion]

Conversion is the process of changing one format is to another. Usually this means a software conversion like from MOV to MP4, but can also be a hardware conversion like from HDMI to composite with separated chroma and luminance by cable.

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How can I quickly reduce .mpg files?

I recently imported a few personal videos I had on VHS or video 8mm tapes using Roxio Easy VHStoDVD equipment and software onto a Mac. But here's the thing: the files are in .mpg format, very large, ...
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How to choose a bitrate when converting between formats?

I have a number of video files I need to convert to "regular" .mp4 format to view on my computer. The format they are in is not supported by my device (the driver has not been backported to ...
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How can I merge five mkv files I've created in OBS Studio?

I used OBS Studio to create five recordings. Now I need to submit them as just one file on YouTube, so my five .mkv files has to be merged into just one file. Can it be done in OBS Studio, if so ...
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FFmpeg seems to write bad .w64 files for pcm_f32le streams

I have a problem with FFmpeg when writing a pcm_f32le stream to a Wave64 file format (.w64). Basically, only FFplay can read the file back correctly. I tried with VLC, but it seems it cannot read any ....
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Can I use Apple Compressor software to convert mkv files to mp4

I use Final Cut Pro X. I am planning to buy Compressor software too which gives me options in exporting my video. Can this same software be used for converting mkv files to mp4 because Final Cut Pro X ...
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What are the limitations of converting a video file from .mov to .mp4 by simply changing the suffix?

I need to convert some home-made .mov files shot on my iPhone to .mp4 format. Various websites, mostly dodgy-looking, offer to carry out this conversion online, but I also read somewhere that you can ...
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118 views

Trying to improve choppy ipad screen capture

I'm trying to improve the choppy screen capture that I'm getting on my ipad. The screen capture plays smoothly when viewed on the ipad itself, however it is choppy when played on my pc in vlc, and ...
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Convert LUT formats

Is there a reliable and somewhat user-friendly way to convert between different LUT formats? I have been searching for a way and find pretty much nothing. My specific problem at hand is that I have ....
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How to downsample 4k to 1080p using ffmpeg while maintaining the quality?

I have some 4K 3840x2160 footage in MP4 format that I need to bring down to 1080p. I tried running ffmpeg -i orig.mp4 -vf scale=1920:1080 smaller.mp4 but the result is very poor quality, with the ...
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FFMPEG - Creating script to convert a video into audio file (or anything related really) + diverses questions

Good day everyone. Im making my babysteps into ffmpeg, and so far this tool has been really helpfull. Anyway. Im currently using this line as a convertion basis : ffmpeg -i name.mov -c:v libx264 ...
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.EXE VIDEO CONVERT TO MP4

I have a video that extension is .exe. I try to open this file in Windows but I can't. I try to convert this file to mp4 but again return empty file. How can I open .exe video?
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What format should I use to archive video issued from mini DV tapes?

I want to convert and archive movies captured with mini DV tapes. Videos are family movies. Native format in dvvideo is huge (about 220 MB/min). So I am willing to accept video compression but I ...
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FFmpeg for m2t and Sony Bravia - not working

-f mp4 -c:v libx264 -preset veryslow -tune grain -profile:v high422 -flags +ildct+ilme I am preparing video to be streamed (DLNA) from my NAS to an older Sony Bravia. I have successfully created ...
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1answer
548 views

How to find/detect the real video resolution?

Imagine you have recorded/captured the screen at 1080p, but it was displaying a 480p video maximized to fullscreen. The result file is technically 1080p, but it really is showing a 480p video, that is ...
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US DVD playback problems in UK

I recently brought back some DVD's recorded at a conference in Florida, USA. They play on my UK DVD and computer but with with horizontal lines across the picture. Is this a region problem or a NTSC ...
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1answer
37 views

recomendations for conversion

I have a video in a very not compatible format and want to convert it to something like mpeg. I already have ffmpeg tool installed. Do you have any recommendations on what arguments to give ffmpeg for ...
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1answer
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mp4 to wmv AND file compression

I have a mp4 from a video created in iMovie 10. The original output is about 1.5 GB. I uploaded it to youtube to use their compression and re-downloaded. I now have an mp4 at 236mb. I need to ...
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What is the most lossless way to rip a laserdisc to a Mac?

I want to rip a LD to my Mac as a digital video file. I will create a DVD from this file eventually, but I'm primarily interested in playing it on my laptop. What video output from the Laserdisc ...
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94 views

Convert .raw frames to images using FFmpeg

I received a .raw frame format (here is a sample) which contains the raw pixel values of a frame. And I've been told I can convert it to an image (.bmp or .png) using FFMpeg. Is there a command to do ...
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Can I use ffmpeg to encode a video for Camtasia import?

I'm using ffmpeg to create screencasts. The command looks like this: ffmpeg -f x11grab -framerate 30 \ $(xwininfo | gawk 'match($0, /-geometry ([0-9]+x[0-9]+).([0-9]+).([0-9]+)/, a)\ { ...
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How to detect "late" audio streams in MPEG-2 TS (with ffmpeg, ffprobe or mediainfo)?

I am recording from my Linux TV-Sat receiver in MPEG-2 transport stream (mpeg2video) format. The recording starts before the actual movie, so it usually only has a single (local) audio stream in the ...
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Why aren't chapters being added to my m2ts using tsmuxer?

Question - Why aren't chapters being added to my m2ts using tsmuxer? Background I have a mkv file with 61 chapters. I confirmed the presence of those chapters by using mkvtoolnix. I want to convert ...
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1answer
16k views

Problem converting TS to MP4 container with ffmpeg

I have a video stream I captured with VLC and saved as a TS file. The codecs within the file are h.264/AAC, so I thought it would be trivial to use ffmpeg to convert the file from a TS container to ...
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ffmpeg converting to gif forces wrong aspect ratio despite trying to manually set aspect ratio [duplicate]

I have a very short mp4 file with dimensions 1440x1080 which identifies with mediainfo as having aspect ratio of 16:9. When I attempt to convert that mp4 file to a gif and play it with either mplayer ...
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Why is the quality different on two videos with exactly the same codec / bitrate

I do a lot of video converting with programs like Format Factory and Any MP4 Converter. I downloaded season 2 of The Black Sails. It's roughly 10 hours total video at only 1.95gb with SURPRISINGLY ...
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2answers
20k views

FFMPEG convert video with multiple audio streams?

Ok so I have a video made from dxtory. The video is using dxtory video codec and unknown audio codec. When I pop the file into avimux, I can clearly see two audio tracks/sources. I have successfully ...
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FFMPEG HD 1:1 to SD 4:3

Been trying to calculate HD 1:1 to SD 4:3. Of corse the left and right will need to be cropped to 720x480 and then the proper set dar applied. Going from 1:1 (1920x1080) to 1.33 (720x480) 640x480. Im ...
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1answer
486 views

ffmpeg: convert an existing audio stream as an additional audio stream (keeping untouched original as well)

I have a video with 1 video stream, 2 audio streams (TrueHD 7.1 and E-AC3 5.1), a bunch of PGS subtitles and chapters. I want to copy the video, convert the 7.1 audio into AAC, copy over the original ...
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Adobe Premiere Pro: Error when exporting from animation to .mp4

I am working in Premiere Pro and have used used a .mov animation file (the audio spectrum in the middle of the image) in my sequence that I exported from Adobe After Effects. When I try to export my ...
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1answer
559 views

MKV to WMV conversion and the size difference

I'm working with video editing for years but suddenly I've stumbled upon an issue that I can't seem to figure out. I have many video files in .mkv, and I need to edit them in Sony Vegas - hence, I ...
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Is a TBC required for converting VHS home videos to digital format?

This is a follow-up question to this one. The DigitalFAQ forum, whose members seem to know a lot about this particular topic, say about TBCs: You must have some form of TBC, it's not optional. You ...
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How to digitise old NTSC home videos for highest quality (with PAL player)?

I have some old VHS home videos that I'd like to digitise to preserve them, and I'm looking for the "best" way to do that with my setup. The videos were recorded around 1990, in the USA. I'd say they ...
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37 views

ffmpg (copy existing settings?) or crop a .mov with alpha and have it be open-able using Quicktime (not VLC)

How do you have ffmpeg copy all existing settings except the crop dimensions of a video file? I've been struggling to crop an .mov with alpha channel (transparent video), so that it can be opened ...
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1answer
316 views

How can I convert a large file from MP4 to MOV?

I recorded a 5 minute video with my phone, it is a 565M MP4 file. I need to submit it as MOV, specifically. All online converters reject the file as 'too large' and all downloadable programs cost at ...
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94 views

Changes in file size and quality after ffmpeg VOB/mp4 conversion

Question I wish to know — in my own particular case — why the conversion of VOB files to mp4 files using ffmpeg results in files of only about one quarter the size, whether this reduces the quality ...
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Decrease size of a avi video with lowest quality loss

I have been working on an animation with Blender. Further I rendered it at 24 fps at 1080p resolution. The problem is that the rendered video is around 30 seconds and has size around 4.3 GB. Is there ...
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1answer
315 views

Compressing a large MP4 file that is on 2.30mins long

I have been sent a video that is only 2.30 mins long. But is a whopping 168mb, unfortunetely this has to be embedded into an app - so I need it as small as possible. I need to get the file size down ...
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49 views

Batch converting files to monochrome

I am looking for a free software that lets me convert a batch of video files to monochrome. The closest I've found so far is Any Video Converter free but this does neither allow for easy application ...
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1answer
67 views

Video conversion

I'd like to convert quite a few BDMV files to MKV files. I know you can do this with MakeMKV, which isn't freeware. Are there any good freeware programs out there to accomplish this? Also, is the ...
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1answer
185 views

Using ffmpeg to convert files to OVG (libtheora) on Windows 10 results in corrupted Video Files

ffmpeg version 4.2.2 win64 static I'm using this command in Windows 10 to convert a file from mp4 to ogv: ffmpeg -i input.mp4 -c:v libtheora -q:v 10 -c:a libvorbis -q:a 10 output.ogv The result is ...
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1answer
54 views

Video watermark

I am searching for a tool which can add text watermarks to my videos. I have a huge library (around 700 movies), ordered in folders. The video resultion of them vary from 360p to 1080p. I am ...
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1answer
28 views

What pixel count is required for a near perfect digital copy of an old movie?

I stupidly posted this on Photography SE yesterday evening. I'm posting now in a more appropriate place. I've been trying to get my hands on some of the very best digital versions of some classic ...
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68 views

Encode a small proxy file with multiple audio streams for editing on Linux

After capturing 2K video in 444p with OBS, I need to transcode it to a low quality proxy version that's still easy to scrub and not a huge file. I capture 3 audio tracks in 32-bit PCM and the image ...
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Another question on Non-monotonous DTS in output stream

I use ffmpeg to convert and join multiple mp3 files into m4a. BITRATE=128k find . -name "*.mp3" | parallel --lb -k "ffmpeg -y -i {} -map 0:a -c:a aac -b:a $BITRATE {.}.m4a" OUT_NAME=${OUT_NAME:=out....
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1answer
96 views

Create one split screen video, separate audio streams and a thumbnail from the resultant split screen video - all in one pass

I'm using ffmpeg to create several single splitscreen videos out of 2 separate videos. The 2 videos have audio so I want to extract the 2 video's audio streams as 2 separate mp3s and also create a ...
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2answers
3k views

Easily convert & archive a bunch of low res Video CD DAT files MPEG 1/2 to newer better format such as MKV or others?

Each file is around 350-650 MB. This is the media information from the Files: https://i.imgur.com/FqchDMi.png How could I better archive it? Easily convert & archive a bunch of low res ...
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Every 18 or 19 frames from an undistorted .MP4 clip gets pixelized when played via Final Cut

I have a .MP4 movie exported from Blender in 24fps in good quality, without any pixelation problems. In whatever movie player I open it, there are no pixelation problems. When I create a new project ...
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3answers
4k views

Final Cut Pro X Sharing to DVD 66% error? Slideshow compression?

I created a Slideshow in Final Cut Pro X. I need to burn a DVD, I need to upload to YOUTUBE and I need to put on a jump drive. I can export to Master File, however when I try to burn to DVD it only ...
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2k views

4:3 - 16:9 Aspect Ratio Conversion with Pillarbox and Textbox

I'm trying to use FFMpeg to adapt 4:3 (SD) to 16:9 (HD) and reverse function. When SD is converted to HD, I need to add pillarboxes around the content. When HD is converted to SD, I need to add ...
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3answers
729 views

Extract audio from video preserving audio quality

I need to extract sound from videos. There must be know loss of quality (since the sound files will be used in speech-to-text services). So I want to extract the audio from the video exactly as it is ...