I need your help with a data sync problem... I m currently trying to sync my GoPro video with real world time (a.k.a my notebook). I manage to sync date and time of my notebook and my GoPro 3+ blac...

lets say I have a video file (video.mp4) and 2 audio files (audio1.mp3 and audio2.mp3.) The video has a length of 60 seconds, every audio file has a length of 30 seconds. What I am trying to achiv...

Can anyone advise on how to construct an MP4 file from an HLS stream (the reverse of what you usually want)? Say I have the m3u8 - is there a straightforward way of getting a single MP4 using...

While I am able to encode an mp4 file which I can play on my local windows machine, I am having trouble encoding files to mp4 which are readable when streaming by safari, etc. After a bit of readi...

I hold bitmaps as BYTE arrays which holds RGB values of each pixel in a very similar and interchangeable format with microsoft's CBitmap class. So lets consider I have an array of CBitmaps and I wa...

I am trying to convert webM files to mp4 with ffmpeg.js. I am recording a video from canvas(overlayer with some information) and recording the audio data from the video. stream = new MediaStream()...

I'm working on a more secure streaming method for our video player. Because each file requires special token authentication and also only allows each token to be loaded once, I'm running MP4 throug...

I am trying to convert a bunch of videos to a video format that is natively supported by PowerPoint 2013/2016 on a Windows 7 system. Microsoft recommends on their website mp4 with h264 and aa...

I'm looking for a batch script to convert swf to mp4, lossless. I tried using both ffmpeg and handbrake, but apparently swf is compressed and I can't convert them this way. ffmpeg -i input -c:v l...

I have two mp4 Files: out.mp4: ISO Media, MP4 Base Media v1 [IS0 14496-12:2003] video/rio2016/finale/brasse/200.mp4: ISO Media, MP4 v2 [ISO 14496-14] How can I convert 1 to 2 (mp4 v1 to mp4 v2)? ...

I am trying to find some way for converting GIF to mp4 using Python or library. I didn't found any solution for it. I found a library for generating gifs from videos but not the other way round. ...

Here is my scenario: Download an avi movie from the web Open a bitmap resource Overlay this bitmap at the bottom of the movie on all frames in the background Save the video on extarnal storage T...

I would like to wrap real time encoded data to webm or ogv and send it to an html5 browser. Can webm or ogv do this, Mp4 can not do this due to its MDAT atoms. (one can not wrap h264 and mp3 in re...

I currently have two separate media extractors and codecs that I am using to break down each individual sample into ByteBuffers. Then I store each sample into two short arrays. Then I call my mix f...

Recently I had a task to convert the file format to mp4 and stream it. I have used ffmpeg as the transcoding tool. The MP4 file doesn't get streamed over the http protocol [have used php cgi wrappe...

I am trying to concatenate some mp4 files one after another. I execute the following: ffmpeg -i concat:1.mp4\|2.mp4\|3.mp4\|4.mp4 -c copy final_output.mp4 But always get the message "[mov,mp4,m4...

I have this code to play a video in a html5 page: <video autoplay loop id="bgvid"> <source src="video-background.mp4" poster="/poster.png" type="video/mp4"> </video> The pro...

I'm trying to encode raw H264 into an mp4 container using the FFMPEG API in C++. It all works fine, however the AVCC box is empty, and it returns the error: [iso file] Box "avcC" size 8 invalid If...

How can I automatically convert all MP4 files to FLV in a specific folder? ffmpeg -i VID00002.MP4 -ar 44100 test.flv Is there a way to queue these tasks, assuming that I don't know the file na...

I want to convert a sound recording from Facebook Messenger to text. Here is an example of an .mp4 file send using Facebook's API: https://cdn.fbsbx.com/v/t59.3654-21/15720510_10211855778255994_54...

I'm trying to use JCodec to turn a series of images into a video inside of a Java SE desktop application. The few methods I've tried all resulted in a video that Windows Media Player could not play...

After finding the resolution was the source of all my webm to MP4 codec conversion errors on my Android. I came across another problem. To break down my question: What all MP4 resolutions are supp...

I'm writing a Windows application in Python which has to read metadata from an .MP4 video file. I started writing the application in Python 3, but was unable to find a suitable module to read meta...

I would like to scan music files and read/write metadata using Elixir (this whole project is about learning Elixir - so please don't tell me to use Python!). As I understand it, I have two choices:...

I can't seem to find a way in Wowza or any other solution like nginx-rtmp-module to take a live stream's RTMP metadata and insert it into the specific frames of the MP4 saved file. Maybe I'm looki...