PowerShell Invoke-Expression with ampersand in the command string

I am trying to pass a variable with a string that contains an ampersand into Invoke-Expression, and it is telling me I have to put it in quotations and pass it as a string. I've tried multiple...

FFMPEG overlay issue for 2 videos, sound missing from second input

I'm trying to achieve an overlay with ffmpeg which take the two flv files as input and make a output and both videos playing simultaneously. things are working fine with below ffmpeg...

ffmpeg - Frames flip upside-down when using -c:v copy

I tried to just copy (a period of time of) an AVI-Video into another newly created AVI-file using ffmpeg's copy option. (On Windows 32-bit) ffmpeg -i "C:\Temp\zzz\myAvi.avi" -c copy -t 00:00:10...

FFMPEG: How to chose a stream from all stream

I try to convert a UDP stream (that genrated from DVB signal) to HLS m3u8 file with this code: ffmpeg -i udp://239.1.2.1:60001 -acodec aac -strict -2 -vcodec libx264 -hls_wrap 100 -f hls...

Speeding up/slowing down video ffmpeg

I want to change video speed using ffmpeg framework. I used this command for that: ffmpeg -y -i /storage/extSdCard/Video/1.avi -filter_complex [0:v]fps=50.0, setpts=0.5*PTS[v];[0:a]atempo=2.0[a]...

How to encode specific metadata version in FFMPEG?

I am batch converting lots of songs into shorter "Advert" songs for SHOUTcast and to be recognised as adverts by the server. The song must have ":Advert" for both the title and the artist metadata...

How to create multi bit rate dash content using ffmpeg dash muxer

ffmpeg documentation says that we can use dash muxer to create dash segments and manifest file with just a single command, like: ffmpeg -re -i <input> -map 0 -map 0 -c:a libfdk_aac -c:v...

No accelerated colorspace conversion found from yuv420p to argb

I am a novice at ffmpeg and have recently taken over a code base built by a previous engineer. The FFmpeg code is on an app engine that will edit the videos when they are uploaded. This code...

FFmpeg on aws lambda - Invalid NAL unit size

I am trying to run below: 1- generate mp4 from one png image and a mp3 file 2- overlay another png image on top of the previous video A-On my local environment (mac) things work...

FFMPEG NVENC encoding with Windows10

I had to reinstall windows 10 because windows. I have this exact same code working prior to the reinstall, however after I cant get it to work. I am using the latest nvidia drivers 416.16 I have...

Overlay a video on another video at specific time with FFmpeg

I am trying to overlay a video with another video. I followed the original command OP posted here. And it works, but it overlays the video from time 0: ffmpeg -i 720480.mp4 -i sdbug.mov...

FFMPEG merge audio tracks into one and encode using NVENC

I often shoot films with several audio inputs, resulting in video files with multiple audio tracks supposed to be played all together at the same time. I usually go through editing those files and...

ffmpeg with frei0r libraries fails on os x 10.14.6

I'm on Mac OS X 10.14.6 (Mojave), used homebrew to install both ffmpeg and frei0r. If you check the output below, the option --enable-frei0r is there. I verified the path to the frei0r libaries...

RuntimeError: CUDA out of memory. Tried to allocate 754.00 MiB (GPU 0; 2.00 GiB total capacity; 1.21 GiB already allocated ...)

I'm trying transform video into high FPS footage using Super-SloMo https://www.youtube.com/watch?v=mXwXtIiOjRA&t=329s and when I run this process in Anaconda prompt it stops after about 30 seconds...

Video watermarking with ffmpeg (output video size too big )

i am running ffmpeg on video of size around 2 Mb and after watermarking them size of my video file is around 13-17 Mb. AM i doing something wrong. Please Help My code is ffmpeg -i...

FFMPEG JAVA ffmpeg doesn't work in .jar application

FFMPEG works only in developer mode. When I compile my jar program it returns the following error the log of the program launched with eclipse in this case everything works ffmpeg version...

FFmpegAndroid CANNOT LINK EXECUTABLE

I used this library implementation 'com.writingminds:FFmpegAndroid:0.3.2'. But i get an error.CANNOT LINK EXECUTABLE "/data/user/0/com.example.newapplication/files/ffmpeg":...

FFMPEG wrong duration when using amix filter

I am trying to add background music to a video with an existing audio-track. I settled for the amix filter, since other filters seemed to cause a delayed audio track. So far everything is working...

Stopping rq worker doesn't stop underlying ffmpeg process

I am fairly new to python and rq, and have come to a point I can't solve by myself. I am using ffmpeg-python to encode livestreams, this is distributed in rq workers and displayed on a web app...

Concatenating *.mkv files using ffmpeg

I've just about lost my mind on this, I'm sure I'm missing something simple. I have two *.mkv files generated by OBS. Even better, I've just copied one file twice, so I am sure I have the same...

| NGINX | FFMPEG not creating DASH manifests or chunks in the designated DIR |

Hopefully someone can help here, I have a setup that takes two input RTMP streams from two separate machines into my server. From here I am trying to serve some MPEG DASH manifests and chunks to...

Gaps in audio when pushing rtsp stream to rtmp with ffmpeg

I push the stream like so: % ffmpeg -rtsp_transport tcp -i "rtsp://**********************" -codec copy -f flv rtmp://x.rtmp.youtube.com/live2/**************** ffmpeg version N-94664-g0821bc4eee...

Video encoding with AV1 - FFmpeg

I was trying to encode a raw video with AV1. I used: ffmpeg -i netflixboxing720p.y4m -c:v libaom-av1 -b:v 500k -strict experimental netflix720p500AV1.mp4 I took 2 hours and when I open the created...

Processing WebRTC RTC stream in node js server with ffmpeg

I am trying to build a video chat app where I am creating an RTCPeerConnection and creating an offer and saving the SDP in a file. I want the SDP I sent to server should be sent to RTMP server...

ffmpeg command execution never stops

I am trying to concatenate 3 videos of different resolutions and overlaying 2 videos as transition effects(though the chroma key color removal is not yet implemented) between videos using below...

FFMpeg - Overlay not being shown when enable=between parameter is added

I am using below command to add transitions effect between videos using overlays such that when one videos is about to finish, the overlay gets visible. Before showing overlays, I have to add...

frame appears 0.000057 second before pts_time using ffmpeg

This video is created using ffmpeg command from a series of images with number and expected timestamp on it (assuming 120 fps constant frame rate): ffmpeg -framerate 120 -i %03d.png -crf 0...

streaming to youtube with ffmpeg

I am trying to stream to youtube but the stream health says no data. ffmpeg -threads:v 2 -threads:a 8 -filter_threads 2 -thread_queue_size 512 \ -i /tmp/thumbs/thumbnail.jpg \ -stream_loop -1 \ -i...

Transcoding with the GCP Transcoder API results in a time gap

I've been trying GCP's Transcoder API and having trouble with the time randomly becoming shorter than specified in certain cases. The specific cases are as follows: Specifying startTimeOffset and...

FFMPEG/DASH-LL creates audio and video chunks at different rates; player is confused (404 errors)

I'm trying to create a MPEG-DASH "live" stream from a static file to test various low latency modes. The DASH muxer in FFmpeg creates two AdaptationSets, one for video chunks and one for audio...