video-editing

Consider the following bash script (on Ubuntu 18.04, melt 6.6.0), which uses melt to make a slideshow and play it locally in a window (SDL consumer), mostly copied from https://mltframework.org/blog/making_nice_slideshows/ ( edit: I'm aware that's its possible to specify files individually as in https://superuser.com/questions/833232/create-video-with-5-images-with-fadein-out-effect-in-ffmpeg/834035#834035 - but that approach seems to scale images during transition, and takes quite a while to "render" before playing in SDL window, while this one has nearly instant playback): echo " description

I have 2 videos (same resolution, same encoding) files that I want to concat and I want to insert some text for 3 seconds between them, as a splitter. I'm doing this with ffmpeg on Windows. Optional ideas that I would be interested in: avoid reencoding the video in the process having a fade in / fade out at the intersection of each part For now, I made the text as an image (but I am open to other suggestions). Let's say I have: video1.mp4: 6:33 splitter.png (same resolution as video1.mp4) video2.mp4: 16:44 I have tried a few things, but I always end up with the same problem: the video is 23:20

I know you could merge multiple clips and create a single video by appending one after other using AVFoundation classes- AVURLAsset, AVMutableComposition, AVMutableCompositionTrack etc. There are apps like 'Video-Joiner' that do that. What I want to do is to juxtaposition 2 videos. My app idea - SelfInterviewer please don't steal :) First I record video 1 using front facing camera standing left to the frame. Then video 2 standing to the right. In video 1 ask a question and in video 2 I answer. When I merge, it should appear like I am being interviewed by myself. I am almost sure its not

I have to upload a video from front-end web to my Django back-end. I need to compress the video before to upload it. So, I need some libraries (for example javascript libraries) to use on client-side (browser) to compress the video and call my ajax function to upload it. Is possible this? Can we suggest me something like javascript libraries to make this? I found this project. It is a conversion of FFMPEG decoder in javascript language. So you can use it to work images, video and audio files without upload file to server. Homepage: https://bgrins.github.io/videoconverter.js/ GitHub: https:/

I want to edit video from my iOS application. I want some text on the source video for language subtitles. I then want to save video with that text overlaid. text not just only display purpose. but when i open edited video it show updated video. Is this possible in an iOS application? If so, how? Chaitali Jain - (void)addAnimation { NSString *filePath = [[NSBundle mainBundle] pathForResource:videoName ofType:ext]; AVURLAsset* videoAsset = [[AVURLAsset alloc]initWithURL:[NSURL fileURLWithPath:filePath] options:nil]; AVMutableComposition* mixComposition = [AVMutableComposition composition];

This is not a particularly new question area around here, but I've tried what's been suggested there without much luck. So, my story: I've got a hunk of 15 seconds of straight-from-the-camera.mov video out of which I want to extract a specific chunk, which I can identify by start time and stop time, in seconds. I started by trying to do what I'll call a "copy extraction": to get seconds 9 to 12, ffmpeg -i test.mov -vcodec copy -acodec copy -ss 9 -to 12 test-copy.mov This was a not-bad start, but there are some black frames at the beginning and end of the clip, which I can't have -- it has to

I tried to cut the video using the start and end time of the video by using the following command ffmpeg -ss 00:00:03 -t 00:00:08 -i movie.mp4 -acodec copy -vcodec copy -async 1 cut.mp4 By using the above command i want to cut the video from 00:00:03 to 00:00:08 . But it is not cutting the video between those times instead of that it is cutting the video with first 11 seconds. can anyone help me how resolve this? Edit 1: I have tried to cut by using the following command which is suggested by mark4o ffmpeg -i movie.mp4 -ss 00:00:03 -t 00:00:08 -async 1 cut.mp4 But it was shown the following