Convert .mov to .mp4 and keep alpha channel using FFMPEG

I am trying to convert a .mov file that is Quicktime with Alpha Channel to a .mp4 movie. I am using FFMPEG and I can successfully convert the video to a .mp4 video, but I loose the alpha...

h264 codec in VLC 2.0.5

It seems the latest VLC (2.0.5; 32-bit and 64-bit versions) can not do h264 compression (though VP8 and WMV2 work fine). The resulting file is almost empty though there are no errors. Is this a...

Add 2 pictures to video with durations?

I am trying to add 2 different images into a video with ffmpeg. image1.jpg should show the first 10 seconds of the movie and youtubeLOL.png should show the next 6 minutes of the video. So the...

<video> tag refuses to play mp4 video

I have a video I want to embed using the html5 video tag: https://dl.dropboxusercontent.com/u/64454818/TMP/P6135199.MOV I've converted it using ffmpeg: ffmpeg -i P6135199.MOV -vcodec libx264...

Cannot play this video when converting format to .mp4

I am converting video to .mp4 format, but when i convert video using ffmpeg using the following command: exec('D:\wamp\bin\ffmpeg.exe -y -i D:/wamp/www/upload_google_drive/output.flv -c:v libx264...

Ffmpeg avs to avi lossless conversion

How to convert avs (Avisynth file) to avi without loss of quality? Firstly, I'm changing avs to 264: ffmpeg -i "Source.avs" -c:v libx264 -preset veryslow -crf 24 "Output.264" Secondly, I'm trying...

Resize the video

I have a requirement for video size before upload on the server and would like to resize the video to make sure it will not go the threshold. So far I ended up with this command: ffmpeg -y -i...

WebM live streaming via DASH

I am following the instructions here to try to make WebM live streaming via DASH. My input is from an Axis camera and it is streaming as h264 encoding. I am using node to spin up the ffmpeg...

ffmpeg doesn't generate video from images

I am trying to create a video from jpeg images using ffmpeg. The generated video should be in x264 or x265 format. I have a directory with 36 images . Each image size is around 60Mpixel. They are...

Using ffmpeg for streaming video composition from Python : why the sound is cut only when streaming into a mp4 file ?

I am using ffmpeg within Python for automatizing some video compositions. To do so, I am using the subprocess module of Python and run a ffmpeg command with a pipe input. This allows me to stream...

cannot find ffmpeg in videoshow in nodejs

I want to create video from image files. So I have installed videoshow module. And configured the same as per the documentaion. var videoOptions = { fps: 25, loop: 5, // seconds transition:...

ffmpeg generate thumbnails on GPU

I try to generate thumbnails with acceleration on GPU, so compile ffmpeg 3.4.1 and run command: ./ffmpeg -i ~/Videos/1080.mp4 -vf...

NODE.JS using audioconcat , configured ffmpeg but still have prob

Want to concatenate two audio files. i used an npm package known as audioconcat but when i installed and configured the below code i am confronted with the following error Error: Error: Cannot...

FFMPEG - Zoompan image overlay keep ratio

With zoompan I can zoom in and out an image overlayed over a video. My problem is that the image ratio is not respected and the image is stretched in something like 16:9 The image in the center is...

ffmpeg- number of frames

I am streaming live feed of a webcam from PC A to PC B, both connected to a router. I am streaming the video using ffmpeg and I have the output of the commands I use at A and B as follows, Started...

Merge audio of multiple movies by ffmpeg command

I want to merge 3 video files to one. my problem is that i can hear the audio only from 2. one of them is muted. The command i did will show the 3 movies each one next to each other and should...

FFMPEG : Invalid data found when processing input

I am unable to upload mp3 or mp4 is there any specific path format? Here is my code. I have tried this also ffmpeg -i Video/" + Name + " -ss 01:30 -r 1 -an -vframes 1 -f mjpeg Video/" + Name +...

Qt4 & Qt5: How to fix Segmentation Fault Caused By the Function viz::WCloud

in my program C ++ opencv, I use several processing (rectification, stereoBM ...) on jetson TX2 accctually I used the function of SKD-DJI unprojectPtCloud for unproject 3D point cloud, but...

ffmpeg: Can't convert file due to missing pixel format info?

I'm new to ffmpeg and i've been having problems converting this kux file to mp4. I've converted other kux files in the same way before without issues but it seems that this one isn't working...

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...

FFmpeg v4l2 copying unstable

Prelude I am using ffmpeg 4.2.2 on an Ubuntu 20.04 machine to clone the feed of a USB webcam (v4l2 device as /dev/video0) so that multiple applications may access the feed. I used this ffmpeg...

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...

Setting fixed keyframes in a h265 video using FFMPEG

I'm trying to cut a video and convert it into h265, but the output file isn't seekable in the same way as the original video (for example, instead of jumping to a keyframe every 1 second, the...

FFMPEG on Windows Server "Unknown encoder 'libfaac'"

I am doing this on a Windows server and is not already answered as per the other question on here on a Linux server. Im using FFMPEG on a project handling video uploads and I keep getting an issue...

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