3
голосов
2ответов
3694 просмотров

Custom File Format And Codec?

I'm messed up with codec issue for days, and still couldn't see the big picture yet. It is my first time to deal with audio/video formats and codecs. So I really need some help about that. Here is the work. I'm writing several components that is responsible for encoding and decoding customized m...

7
голосов
2ответов
18814 просмотров

creating my own MJPEG stream

I'm trying to create an MJPEG stream, I have a series of jpegs that I want to put together into a stream so that a user can just hit a URL and get an mjpeg stream. I've been trying for the last few days to get this to work, and it may just not be possible. I've brought up ethereal and listened t...

2
голосов
2ответов
777 просмотров

Is there a good online library of different video formats to use to test my FFMPEG installation?

I want to check that users will be able to encode the main video formats using FFMPEG running on a server. So far most of the videos I have tried have worked but want to find out where things may fall down. Is there a good list and hopefully attached files to download showing the main video forma...

2
голосов
2ответов
1477 просмотров

p2p video conference

I have developed a peer to peer wpf application and in it I am just broadcasting my video to other peers, but I also want to see their video at the same time. Currently I do not know how to pass my video stream to other peer's machine so that they can process it on their own. I want it to be p2p ...

0
голосов
1ответов
130 просмотров

Digital picture processing on iPhone

I want to write application on iPhone which will: make some digital processing on video from iPhone camera (in real time) send some graphics through TV-Out Could You tell me if this above is possible on iPhone 3G or 3GS? Can I have access to each pixel in video capturing via iPhone camera?

0
голосов
2ответов
173 просмотров

convert video formats

Because the xbox 360 only supports specific video/audio codecs, I'd like to write a utility that would look in a directory and convert files to specific formats as they are dropped in the directory. In some cases, it would only need to convert the container format (ie, mkv to wmv or avi) and in...

6
голосов
4ответов
3259 просмотров

FFMPEG: Set output res and bitrate depending upon input video

I'm processing user videos with differing aspect ratios. It seems FFMPEG only allows you to specify a fixed resolution. I want the output res to be appropriate for the input res. Similarly, I'd like FFMPEG to intelligently set the output bitrate based on the input video: obviously it shouldn't be...

2
голосов
2ответов
1253 просмотров

How to convert to m4v

by script or programmatically ? I have a bunch of files that need to be converted wondering if there's a better way than go through the prompts one at a time OS windows Vista/XP

10
голосов
2ответов
31123 просмотров

How to display avi video with gstreamer?

I want to write an object tracking program which needs to play the tracked result. As gstreamer is a good multimedia frame work, I want to use it in my demo program. But I don't know how to implement video display in detail. Can any one help? Avidemux plugin could separate the audio and video pa...

17
голосов
5ответов
47696 просмотров

playback video full screen

I am trying to play a video in my app. It has to be embedded. I went through the "Play Video Files in Android" thread. I am able to play my video using VideoView as mentioned in this discussion. But there are a few problems. I need full screen video, how do I stretch VideoView to full scre...

60
голосов
5ответов
114269 просмотров

Android intent for playing video?

I'm trying to play video's on Android, by launching an intent. The code I'm using is: tostart = new Intent(Intent.ACTION_VIEW); tostart.setDataAndType(Uri.parse(movieurl), "video/*"); startActivity(tostart); This works on most phones, but not on the HTC Hero. It seems to load a bit different ...

0
голосов
2ответов
1630 просмотров

Android always play intro clip

I'm trying to make my app to play intro clip for only when I start activities. But from my code it's always play the clip after wakeup before resume to app although I did not closed the app. What can I do to fix this prob? From main: startActivity(new Intent(this, MyIntro.class)); From MyIn...

2
голосов
1ответов
1525 просмотров

Have users upload and watch videos on my website?

I'd like to enable users to upload and watch videos on my website. This is very much like what a site like youtube currently does. I'm not trying to create another youtube. The video functionality is complimentary to other, already existing functionality the site has. I don't mind having the ...

1
голосов
4ответов
3510 просмотров

Embed video on a asp.net-mvc website

I will be embedding a video to my asp.net mvc website. A video on the homepage which will help people to better understand the website. I have never done this. Can anyone tell me whats the best way of doing it. Flash or silverlight??

0
голосов
1ответов
134 просмотров

access to frames from common video feed from different applications

I have UDP MPEG-2 TS streams coming from a satellite TV receiver connected to an Ubuntu box, I can access each frame from each stream (corresponding to different channels) using ffmpeg, no problem. I would like to perform various video processing operations on a stream, e.g. Task A, Task B, etc...

3
голосов
1ответов
1422 просмотров

Saving video from UIImagePickerController to Core Data on iPhone OS

I need some guidance on how to save video data to core data so that I can retrieve it again later. I have no problem retrieving the NSURL that is returned from UIImagePickerController but then I'm not sure how to go about saving the video data to Core Data. I can already save and retrieve regula...

1
голосов
1ответов
1517 просмотров

MPMoviePlayerController overlay

I'm loading video from external URL in my iphone app. This loading takes few minutes as the control downloads the video. While the video is being downloaded, I would like to display a small snapshot of the video (separate png file) on top of the media player control. This would be similar to the ...

3
голосов
2ответов
782 просмотров

Which frame does ffmpeg get when reducing the frame rate

I have some video that I would like to convert to images of frames every 2 sec. E.g. If the video is 7 seconds long at 15 fps I would like to get frames 1, 31, 61, 91. The command: ffmpeg -i foo.mp4 -r 0.5 -f image2 -vcodec mjpeg foo%d.jpg appears to do what I want, but which frame does i...

1
голосов
4ответов
611 просмотров

Need example of Flex or silverlight application that enables interactive drawing on a video

I am trying to evaluate which technology is best for my needs. I need to display a video I get from some remote device, and let a user interactively draw on it lines, polygons etc. I searched and couldn't find any existing applications with this ability (all the flash applications only displaye...

6
голосов
5ответов
6597 просмотров

Play FLV from ByteArray in Flash Player

I have a flash video file (FLV) stored in the ByteArray object and would like to play this video. Is there any way to achieve it? Maybe using Alchemy? Thank you!

0
голосов
1ответов
1856 просмотров

How does speed bit video accelerator work?

What type of optimizations does speed bit video accelerator use.

1
голосов
2ответов
2940 просмотров

Live video streaming using progressive download (and not RTMP) in Flash

Is it possible to use progressive download for near real-time playback of a live video stream recorded with a webcam? What I need is that a video stream is recorded on one end, uploaded in real-time to a server and downloaded with a short delay, but in real-time, using progressive download (i.e....

0
голосов
1ответов
407 просмотров

Time-passage callback when rendering recorded and live/streaming audio/video

Guys...! I'm a complete newbie to this area of audio/video formats/codecs, their players, their exposed APIs, etc. Would greatly appreciate your patience as well as advice on this question of mine. Question: Almost all audio/video players show time-passage information in hh:mm:ss format. I want ...

6
голосов
3ответов
2655 просмотров

Is it possible to do Flash pseudo streaming with S3?

I've been using S3 to store and serve FLV and MP4 videos. It works great, but the content is progressively downloaded. I was wondering if it is possible to get so-called "pseudo streaming" to work with S3. Pseudo streaming allows viewers to seek ahead in a video before the full video has dow...

3
голосов
9ответов
2735 просмотров

Access video frame by frame

What is the easiest-to-code-in technology that would give me real time access to a video's frames, and allow me to modify them. I am aware of DirectShow, but it's programming model seems to be quite complicated. Is there a framework that makes programming such a frame filter easier?

1
голосов
1ответов
147 просмотров

How to program an audio/video application on network?

I want to make (for fun, challenge) a videoconference application, I have some ideas about this: 1) taking the audio/video streams (I don't know what an audio/video stream is) 2) pass this to a server that lets communicate the clients. I can figure out how to write a server(there are a lot of b...

41
голосов
3ответов
121531 просмотров

Video file formats supported in iPhone

What are the the video file formats supported by the iPhone OS? Thanks

1
голосов
3ответов
1089 просмотров

Upload of very large files

I am looking for a way to upload very large files, means, 5 GB or more, via a Web-Interface. The language/server system can be chosen. POST-Requests seem not to work since the browser-internal filepointer only handles files up to 2 GB. Other options would be e.g. an Java-applet, a FTP-Request (fo...

4
голосов
2ответов
4124 просмотров

Displaying live video from a raw uncompressed byte source in C#: WPF vs. Win forms

I have a live 16-bit gray-scale video stream that is pushed through a ring-buffer in memory as a raw, uncompressed byte stream (2 bytes per pixel, 2^18 pixels/frame, 32 frames/sec). (This is coming from a scientific grade camera, via a PCI frame-grabber). I would like to do some simple processi...

1
голосов
2ответов
218 просмотров

1080p30 DVI to Flash Player

I have a high-definition video camera which outputs 1080p30 video over a DVI (yes, DVI) cable. Somehow, I need to use this video in a software prototype written with Flash using ActionScript 3. Any thoughts on how to do this? Right now, I am putting the DVI into a Folsom ImagePro HD and getting ...