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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 to read 10-bit RGB values from HDR video?

I had a HDR video and the format is ProRes. The colour bit depth of ProRes is 10-bit. I would like to extract the 10-bit RGB values from the HDR video. As per this link, I have first converted the 10-...
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8 views

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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8 views

Getting license plate number from night vision camera that was blurred by lights

Recently, we had a problem with people doing donuts in our parking lot. We have the cameras in place but the night vision camera couldn’t see the license plate because of the lights that illuminate ...
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1answer
23 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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13 views

How to change an avi file size using ffmpeg?

I'm completely new to video editing, and ffmpeg. I need to change (decrease) the size of an avi video file, while simultaneously change its format to mp4. Here is the command I use: ffmpeg -i imput....
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12 views

Roku Ultra (2016) Issues With Converter/Multiplexer Setup

I have just finished a project where we wanted to give access to entertainment within our breakroom, as well as display some HR and Corporate notices, on a single TV (65" Samsung UHD). In order to do ...
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12 views

Convert extra large dimension MOV to MP4

I have a MOV file of 11520x1080 dimension. I want to convert it to MP4. Is this achievable? If yes, which is the best tool to do this?
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20 views

Why does the volume of the audio significantly go down when converting AAC stereo to AAC mono using ffmpeg

I am attempting to convert a stereo, left-channel-audio-only AAC audio file into a mono AAC file using ffmpeg. When the conversion is complete, I see a significant drop in audio volume in the ...
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38 views

How convert avi and wmv to mp4 for html video tag?

I want to convert avi and wmv to mp4 for web and I use below code: ffmpeg -I input.wmv output.mp4 Is that enough?
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1answer
130 views

How to convert MPEG-4 to AVC/h.264?

I would like to use ffmpeg, mencoder or still something free. I cannot concatenate two videos because of different video codecs: $ mkvmerge -o merged.mkv 1.mkv \+ 2.mp4 mkvmerge v19.0.0 ('Brave ...
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1answer
27 views

Resize, crop, and trim videos

How do I crop and resize about 6000 mp4-movies? They are all 1280 x 800. I need to crop the bottom 100 px and remove the first 4 seconds of each movie. Can this be done with ffmpeg?
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42 views

ffmpeg. Converting through rawbitstream results to noise

I tried consequentially commands below. On output I'm getting video with a mess (even.mp4). ffmpeg -i in.MOV -an -vcodec rawvideo -pix_fmt yuv420p rawbitstream.yuv ffmpeg -r 2 -s 640x480 -i ...
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1answer
60 views

ffmpeg hls creation overwriting master manifest

I have a video I'd like to convert to HLS, however, when I run the command, it only records the last few segments to the master manifest. How can I get all of the fragments and their associated data ...
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2answers
30 views

Converting a PDF slide show to a video file

I have a LaTeX Beamer presentation that I output into a PDF slide show. I want to turn into a video file (with the ability to add sound later) so that I can generate animations from Beamer . How can ...
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173 views

ffmpeg: add white and black frames with audio to xvid avi file

I am attempting to add a number of frames to an xvid video file in an avi container. Black frame, no sound White frame with impulse sound. White frame, no sound Black frame, no sound Actual video ...
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22 views

Hardware or software frame rate conversion

Wondering if anyone has any experience with hardware vs software frame rate conversion? We're needing to go from 29.97 to 59.94 and getting differing results using AE and a couple of plugins regarding ...
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25 views

Convert multi-audio track .mp4 files?

so I record a lot of my gameplay with OBS, and record them into .mp4s with 3 separate audio tracks embedded in the video file. However, the video has a variable frame rate, which causes it to ...
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2answers
109 views

Convert FFMPEG Waveform Back to audio

I'm trying to convert an audio file to an FFMPEG waveform, train it in HyperGAN, and produce an image file to convert to an audio file. What I'm asking is if there is a way to convert a waveform image ...
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1answer
796 views

ffmpeg to convert and merge 3 videos to a single widescreen video

I have three .mov files with video in Apple ProRes (apcn) and audio in PCM S24 LE (in24), of identical length and dimensions (1920x1080), frame rate (23.976024) and each with the same audio track. I'd ...
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1answer
278 views

Transcode 5.1 audio in ffmpeg leads to incorrect audio mapping in output

I need to transcode some high res videos (prores or dnxhd files with 5.1 uncompressed 48kHz audio in MOV container) to their low res h264 with AAC keeping the audio still in 5.1 preserving their ...
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16 views

How are anolog and digital video converted to a drawn format?

In photo shop you can make a picture taken with a camera look like a drawing or 3D representation. Is there a way to do this with Video? In real time?
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1answer
294 views

Is mp4 or avi format convertable to raw?

Can I convert it to a raw video ? Arduino Drone Next Step| Buying New Item(s) and Public Flight
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2answers
95 views

Do I have any sort of loss converting an M4V file to MKV?

I have a bunch of files I've "shrunk" with Handbrake using a custom preset I've built after reading what each of the advanced options of the x264 encoder, at least those listed under "Advanced" tab, ...
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1answer
616 views

Convert video from 24 fps to 25, shortening length (no frame duplication), keeping audio pitch

I have a .mov video with 24fps and 5.1 audio. Is it possible change the framerate from 24 to 25 fps with no frame resampling (no frame duplication / removal - just new framerate interpretation) and ...
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456 views

PSNR & DMOS SSIM comparison between AVC & HEVC

I am trying to analyze the PSNR and the DMOS of two clips, both encoded with the same bitrate and settings, the only difference is the encoding standard HEVC vs. AVC and both the PSNR and DMOS values ...
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1answer
57 views

FFMPEG Command Works, then stops

When I use ffmpeg with this command: $ ffmpeg -i ~/Desktop/The_Karate_Kid_2010.mkv -c:v libx264 -c:a libfdk_aac -c:s mov_text ~/Desktop/The_Karate_Kid_2010.mp4 It works, until this error appears: ...
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35 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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76 views

8mm film scanned to video at 30 fps - need conversion to 16 fps

Scanned a bunch of 8mm film, the scanner created an mp4 at 30 fps (one video frame per film frame). This means playback is nearly 2x real time (30/16). I'd like to modify the payback rate to 16 fps. ...
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1answer
3k 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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23 views

what encoder can take advantage of 16-core setup? converting/ripping Blu-ray to mp4 format

I'm thinking of upgrading my 6-core setup (single CPU) setup to a 2x8-core/CPU setup. I'm wondering what software will allow me to fully utilize all the cores. I've been using handbrake but I do not ...
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294 views

FFMPEG to convert img seq to DNxHD - BANDING

I am using FFMPEG in a VFX workflow to convert .png sequences to Avid friendly DNxHD. Today I ran into a situation where a video file I created had quite a bit of banding in Avid when it should not ...
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1answer
336 views

FFMPEG stop converting from TrueHD to PCM

I'm trying to convert a TrueHD 7.1 soundtrack to PCM format but ffmpeg give me an error and stopped. Here's the output of ffmpeg: user:~$ ffmpeg -i source.thd -c:a pcm_s24le -ar 48000 output.wav ...
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64 views

Converting an AAC Mono file to AAC Stereo, higher audio bitrate?

I hope someone can help with this issue. A client is sending me videos recorded with iPhone; with dual-channel MONO AAC-LC audio, an average of 89 kbps. It's mono but dual-channel. I'm editing with ...
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2answers
785 views

Does transcoding always mean quality loss?

Can I transcode video from h.265 to h.264 without loosing quality? My instinct is that it should be fine, that with approximate quality settings the new files will be the same quality but larger file ...
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2k views

Apply custom lut via ffmpeg?

I'd like to batch convert some log footage as well as transform each clip into rec709 colorspace. Is there any way to apply a custom lut to the footage? If so, what's the correct way to do that?
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1answer
113 views

Premiere: None of the sequence presets match my clip settings. What to do?

I'm a beginner with Premiere CC and following a tutorial that strongly recommends creating sequence settings to match one's clip settings. This seems reasonable enough, but I can't find any suitable ...
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1answer
50 views

Is there a Video converter, that can convert like the reference file?

I have a video file, with this details: I have another video (in .avi format) and want to convert to exactly like this format... Is there any Video Converter, that can convert to the file, exactly ...
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1answer
675 views

How do I convert anamorphic hdv video to normal h.264 video with ffmpeg? How to ensure square pixels in output?

I have the following code to convert HDV video to a web ready mp4: ffmpeg -i hdv-input.m2t -crf 28 -c:a aac -b:a 80k -ac 1 -strict -2 -movflags +faststart h-264-out.mp4 The problem is that there is ...
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80 views

Inaccurate framerate when converting from .h264 to .mp4

I'm recording a video using my Raspberry Pi's Pi NoIR module, using the following command: raspivid -w 1280 -h 720 -o /mnt/video/tmp/${date}.h264 -t 895000 -fps 40 This records an .h264 video at a ...
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114 views

VLC: transcoding via command line

I want to transcode a file produced by a screen capture app, with variable frame rate, a produce a h.264 encoded, fixed frame rate version that I can edit in Adobe Premiere Pro. I see that there is ...
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2answers
172 views

Open Broadcaster MOV to MP4 conversion

I just used OBS to record an MOV file (4k screen recording). Now I'm having trouble opening it in Premiere. When I import it into Premiere, I get only the audio (no video). File opens fine in VLC, but ...
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1answer
3k views

Convert variable framerate ~60 FPS to constant 60 FPS losslessly

I have gameplay footage recorded with ShadowPlay (“GeForce Experience”) at 60 FPS, which as I understand results in variable frame rate, because the game drops frames sometimes. However, trying to use ...
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98 views

A simple video editor that crop and compose

Below the word "animation" is synonym with "video file". I just need two capabilities: layout composition, suppose I have 4 scientific simulation animations, I want to compose them into a single ...
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89 views

Best quality conversion from VHS to digital domain (USA)

I (like everyone else) have some old home movies on VHS, VHS-C and 8MM (and maybe a couple DV even...). I'd like to get them on my computer so I can edit them and store them. In the past, I've used ...
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111 views

My .avi files created with ffmpeg are bigger than I want them to be

I'm using ffmpeg to covert .mp4 (x264) Image Size: 992x720 to .avi (DivX). The original mp4 file is 845MB and my .avi file is 2.2GB. What can I do to make it smaller in size except increasing -qscale:...
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1answer
292 views

mplayer/ffmpeg How to set caca filter's output size

I'm curious how different clips would look like in ASCII art. So I'm trying caca. To just play, I use mplayer -vo caca $FILE. But that creates an output of quite small size. How can I change that ...
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660 views

Audio issue on concatenation of TS segments

I have downloaded segmented ts files, which i concatenate into mp4 file. The problem is that audio a bit faster than video progress. The problem is appeared when i re-convert concatenated mp4 file. ...
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33 views

Converting .mkv from Kamoso

I have an .mkv file which plays fine in VLC. However any attempt on editation typically fails - Cinerella, ffmpeg. The file was produced by Kamoso recorder, ~2014 edition. I have tried - VLC produces ...
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1answer
543 views

Why does ffmpeg report wrong or missing size information when demuxing some EXRs?

I am converting EXR image sequences to mp4. Some sequences are converted without error, but others report "wrong or missing size information" and generate . It is difficult to identify what is ...
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2k views

Can I set the start number for image sequence output?

I am using ffmpeg to convert from video to an image sequence as follows: ffmpeg -i video.webm image-%03d.png The first image is labelled 001, but I want it to be labelled 098. Is it possible to set ...