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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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Star Trek Continues: ffmeg dvdsub: overlapping subtitles

So I've downloaded the free fan-created Star Trek Continues Blue-Ray ISO for Episodes 1-3 and I'm trying to convert the FHD 1920x1080 to SD 960x540 to be able to watch on my phone: nice --adjustment=...
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Convert video with ffmpeg to have the same quality

I want to make some present for my grandma. And prepare some video. Unfortunately here video player is old and could not read some file formats. She is not at home now, so I don't know which player ...
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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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Convert 3d video to double 2d video using ffmpeg

I want to convert 3d video to 2d video. I saw another topic How to convert a 3D movie to 2D using ffmpeg but as far I know 3d video is build from 2 videos so I should be double output video. One for ...
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iMovie to Instagram

I have an issue with this process to edit a video (6sec, 10MB => in the instagram range) and share it on Instagram : edit in iMovie file / share /file Resolution 720P, Quality High upload on Google ...
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37 views

How to specify different flags for inputs with FFMPEG?

You can specify multiple inputs to FFMPEG and mix them into a single output. I understand the basics of this, for example: ffmpeg -i vid1.mp4 -i vid2.mp4 [commands] output.mp4 What I can't figure ...
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Convert m3u8 to mp4 on mac

I'm trying to convert m3u8 to mp4 on a Mac. I have followed the instructions of a person who does it using VLC in Windows, however I can not find the option in the mac version. Media -> Open Network ...
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Stop Handbrake showing filenames in Text on 1st second of video

When I am creating videos using the Handbrake software, it puts the filename I am using in white text on the start of the video. Is there a setting to stop this or some way around this? I would ...
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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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1answer
204 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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43 views

Can Davinci Resolve convert a movie into (png) pictures…?

I'm a new user of Davinci Resolve. I would like to know if I can use it for converting a video into its pictures ? Do you have a tutorial that explains to me how is the workflow ? maybe on Youtube ? ...
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171 views

ffmpeg for m2t and Sony Bravia - no 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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Connecting threaded 3.5mm jack plug to non-threaded socket?

I have a lav mic with a threaded jack at the end. It came with a Sennheiser Transmitter/Receiver pair and has a threaded jack to connect into the Transmitter which has a threaded socket to match. ...
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1answer
399 views

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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27 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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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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517 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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627 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
48 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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86 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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272 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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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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2answers
182 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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3k 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
896 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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1answer
809 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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427 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
1k 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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1answer
142 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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167 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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6k 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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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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1answer
438 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
590 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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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
2k 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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1answer
3k 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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210 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
54 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
1k 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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2answers
274 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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1answer
171 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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469 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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1k 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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1answer
735 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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1answer
5k 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 ...
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1answer
106 views

FFMPEG Only converting at 1.5-2 FPS

I am a newbie to this forum and am hoping I can get some insight and assistance with an issue I am having. I wrote a script that takes all of my captured videos (.avi) and converts them to mp4 using ...
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2answers
156 views

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. But here's the thing: the files are in .mpg format, very large, and I am ...
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48 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 ...