Category "ffmpeg"

OpenCV VideoWriter using ffmpeg with "Could not open codec 'libx264'" Error

I am new to OpenCV, and I want write Mat images into video using VideoWriter on Ubuntu 12.04. But when constructing VideoWriter, errors came out. It seems tha

OpenCV MP4 Creation

I've been trying to trying to write MP4 video files using OpenCV, in python. AVI creation works fine, both on linux and windows, when I use both: out = cv2.Vi

@ffmpeg/ffmpeg: Uncaught (in promise) ReferenceError: SharedArrayBuffer is not defined

I have a small react app with a node.js backend (monorepo). The client is using @ffmpeg/ffmpeg, and all works fine locally, but when deployed to Heroku I'm gett

how to use GPU in ffmpeg (mp4 to jpg): Device creation failed: -12

I have used option '-hwaccel cuvid'. sp.run(['ffmpeg','-hwaccel', 'cuvid', '-i', video_path, '-q:v','2', '-f','

FFMPEG build on Windows using MSVC - make fails

I am trying to build FFMPEG on Windows with MSVC. I am following this guide. I have managed to setup the environment in order to configure successfully, but mak

How to detect audio sampling rate with avprobe / ffprobe?

Set a subtitle language using ffmpeg

I tried googling a way to set the language of a subtitle stream with ffmpeg and found the -slang option. So I tried the following command but immediately receiv

FFmpeg & Black and White Conversion

How to convert a video to black and white using ffmpeg?

How to trim a video by 4 fragments to 4 seconds using the PHP-FFMpeg?

How to trim a video using the PHP-FFMpeg? I need to implement the following FFMpeg command: ffmpeg -i 7207783801bb.mp4 -filter_complex \ "[0:v]trim=start=10:en

Faster FFMPEG conversion from WMV

I'm converting a lot of WMV files to MP4. The command is: ffmpeg -loglevel 0 -y -i source.wmv destination.mp4 I have roughly 100gb to convert. 24 hours late

Removing encoded date of mp4's metadata?

I want to remove encoded data in mp4 file for test. for this, I try to use library like mp4box, ffmpeg, AtomicParsley. But I can't. How can I remove an encoded

Adobe connect video: FLV to MP4 (export, convert)

I would like to convert an adobe connect video from .flv in the downloaded zip to .mp4. I have already done the steps explained in this question and answer, how

Randomly extract video frames from multiple files

Basically I have a folder with hundreds of video files(*.avi) each one with more or less an hour long. What I would like to achieve is a piece of code that coul

sws_scale YUV --> RGB distorted image

I want to convert YUV420P image (received from H.264 stream) to RGB, while also resizing it, using sws_scale. The size of the original image is 480 × 800.

ffmpeg overwrite output file if exists

I ran: ffmpeg -i input.flac output.mp3 This prompts: File 'output.mp3' already exists. Overwrite? [y/N] y How do I automatically say "yes"?

FFMPEG record http video stream with normal speed

I'm recording an http stream from my IP Camera (TPLINK NC200), using this command: ffmpeg -i http://admin:[email protected]:8080/stream/getvideo -t 30 -aco

ffprobe/ffmpeg reports different video duration when file given via stdin

I am trying to determine the duration of an MP4 video using ffmpeg, which is possible of course, except that when the data is streamed in via stdin (a requireme

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