video-encoding

Streaming encoded video in Adobe AIR Application

Hi, I am developing a desktop application in Adobe AIR that will be used to stream the user's camera video to a wowza media server. I want to encode the video on the fly, means transmit the H.264 encoded video instead of the default flash player encoded video for quality purpose. Is there any way around for this? Waiting for the help...

C# manipulating video

i want to take a folder of pictures, and turn it into a slideshow video with music in the background. i have no idea how to do this, or where to get help, cos this isnt the kind of thing you can search in google. idk if there are api's for it, or if it can even be done in C#. maybe ill have to move the project to C++ or something, but...

How is a h264 idea bitstream organized? / header start codes

I was trying to learn a bit about h264 by looking at the bitstream of a video file with a hex editor. I found here the start codes for a video object planes (0x000001b6) and for i-frames (0x000001b600). But I can't find many of those bytes in video files. Most of the time those start codes appear at the beginning of a file with only a f...

Creating Videos: Which Framerate is common in the US?

I know that there are differences in different regions of the world regarding the framerate of videos. E.g. a DVD in Europe is in PAL with 720x756 and 25.0 fps. In the US its the NTSC standard with 720x480 and 29.97 fps. When I don't want to generate a DVD but a plain video file, e.g. WMV oder AVI what framerate is used in USA? I have a ...

Which video format(s) should a webapp serve?

I need to put up a few videos on a Webapp and I'm a bit lost. My requirements are: DRM is not a concern at all it should work on the iPhone (and iPad) and on the main browsers (Safari, Internet Explorer, Firefox, Opera). it is not a problem at all if the video doesn't play on Linux (because it's a video/screencast of a Windows/OS X so...

ASP.net FFMPEG video conversion receiving error: "Error number -2 occurred"

Hello, I am attempting to integrate FFMPEG into my asp.net website. The process I am trying to complete is to upload a video, check if it is .avi, .mov, or .wmv and then convert this video into an mp4 using x264 so my flash player can play it. I am using an http handler (ashx) file to handle my upload. This is where I am also putting...

What is PTS in reference to video encoding?

Could someone briefly explain what the acronym PTS means in reference to video encoding? ...

How to properly display videos on mobile devices?

This is a 2 part question: What is the best way to display video on mobile devices? For example if I send via SMS a URL to a video... what is the proper way to do it? Should the URL have some sort of script (question #2) to detect which device is requesting the video and then deliver the right format? If my #1 assumption is correct, w...

video portal developed in C# ASP.NET

Do you know some video portal similar to youtube developed in C# asp.net? open source or free version. Thank you. ...

Flash Media Live Encoder

I am using Adobe Flash Media Live Encoder to stream live video to a video streaming server. The webcam is in our office pointed out the window. Thankfully, Flash Media Live Encoder has a checkbox to un-include audio. I am wondering how I can push a recorded message to the audio ( or music ). Is there any way I can play a recording an...

Using FFMPEG to reliably convert videos to mp4 for iphone/ipod and flash players

I need to convert videos for use in both a flash player and the iphone/ipod touch. I'm using the following batch script with ffmpeg: @echo off ffmpeg.exe -i %1 -s qvga -acodec libfaac -ar 22050 -ab 128k -vcodec libx264 -threads 0 -f ipod %2 This always outputs an mp4 file, and I can always play it on my PC. The videos also seem to p...

Encoding Video on the iPhone

Im trying to record the contents of the iPhone screen to video , in the app I'm working I want the user to be able to create a little animation but I'm just not sure how to encode the screen contents/animation to video when their finished? The problem with using something like ffmpeg is that its LGPL which can lead to licensing issues, ...

How to creating animation videos programmatically ( Java or C ) from pictures

I am creating a animation video for which I have the frame by frame pictures. I want to create a video out of it but only programmatically and not using any tool like MovieMaker, Flash or AdobePremier. Please let me know if there any apis which can combine these frames and create compressed video in any of the formats like AVI, MPEG-4 e...

Video conversion in java

Is there any framework or open source project for Java that does video conversion from any video format to any video format. Something similar to Panda Video Conversion framework. ...

How to convert a video via ffmpeg to an mp4 format that will stream and/or download to iPhone and Blackberry?

I have a site where people upload videos, which are converted to .flv format. Simple. I wanted to also convert to an mp4 format that will "stream" to an iphone and blackberry, or allowed to be downloaded to either, for later viewing. Can someone post a working ffmpeg line to accomplish this task? Closest I got was this (which doesn'...

How use asp.net get video duration

using Microsoft.DirectX.AudioVideoPlayback; Video vvideo = new Video(FileUpload.FileName.ToString()); StringBuilder sb = new StringBuilder(); sb.Append(duration.toString()); error message; “Installed an access attempt was made to the application domain.” “vvideo” instance is created error msj :// But down found ...

feasibility of plugging in video post processor and a video pre processor into iPhone, iPad and Mac notebook

Hi all, i have below requirement and i dont know how much it is feasible. A video post processor resides between video decoder and video renderer (a wrapper over display driver usually). A video preprocessor resides between camera and video encoder. Both does processing of video data like rotation, flip, brightness/contrast adjust, whit...

What video encoder services do you use with s3?

We were using FFmpeg which is free. And when a bug occurred that broke the system, a previous developer installed PandaStream. My question is, what do you recommend for quality video encoders? Is it best to stick with ffmpeg and keep it free, or does a small website really need a heavy duty service like Panda? ...

ffmpeg libxvid settings for optimal quality and preferably fast encoding

What ffmpeg settings should I use to convert a video into xvid with a mixed speed and quality ratio, using 2-passes, and alternativly 1 pass. Currently I use the following for just 1 pass, but I need a better sugestion. -acodec libmp3lame -ab 128 -ar 44100 -ac 2 -vcodec libxvid -qmin 3 -qmax 5 -mbd 2 -bf 2 -flags +4mv -trellis ...

Introduction into video compression tech

Is it useful to study the H.261 specification for an introduction into modern video compression technology, or should I start somewhere else? I'm not sure where to start, but H.261 seems simple enough to make it easy to grasp the concepts. ...