Collecting Video From Camera

[Rafael Guerra]

I am currently collecting video from an IP camera and have a couple of questions that

Hopefully someone can help me with.

 

Fist here is the command that I am currently using to collect :

 

gst-launch souphttpsrc location=http://guest:@96.57.244.98/videostream.cgi num-buffers=76000 ! multipartdemux ! jpegdec ! videorate ! video/x-raw-yuv,framerate=5/1 ! ffmpegcolorspace ! x264enc ! flvmux ! filesink location=/home/lanline/windows/videos/96.57.244.98_video.flv

 

This is working but I have a couple of questions and issues :

 

1)      The time collected is not uniform. By using number of buffers the play time of the file is not uniform, I believe because the speed and number of

frames does not remain constant. I would like to have the collection stop after 9 minutes no matter how many frames have been collected.

Is there a way to do this ?

 

2)      Above I am creating a .flv file and I would like to change it to a .mov file that would play on an ipad. Which from what I have read is only h256 .mov files.

Any input on this would be appreciated ?

 

3)      I am not sure why the file that I generate is very large. For example a 9 minute flv file is around 110 megs. This seams large to me.

Is this the expected size ? I am running the software on a FreeBSD server.

 

Any feedback would be greatly appreciated.

 

Rafael Guerra

 

 

 

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[Stefan Sauer]

On 04/12/2012 03:33 AM, Rafael Guerra wrote:

I am currently collecting video from an IP camera and have a couple of questions that

Hopefully someone can help me with.

 

Fist here is the command that I am currently using to collect :

 

gst-launch souphttpsrc location=http://guest:@96.57.244.98/videostream.cgi num-buffers=76000 ! multipartdemux ! jpegdec ! videorate ! video/x-raw-yuv,framerate=5/1 ! ffmpegcolorspace ! x264enc ! flvmux ! filesink location=/home/lanline/windows/videos/96.57.244.98_video.flv

 

This is working but I have a couple of questions and issues :

 

1)      The time collected is not uniform. By using number of buffers the play time of the file is not uniform, I believe because the speed and number of

frames does not remain constant. I would like to have the collection stop after 9 minutes no matter how many frames have been collected.

Is there a way to do this ?

Yes, by writing an application.

 

2)      Above I am creating a .flv file and I would like to change it to a .mov file that would play on an ipad. Which from what I have read is only h256 .mov files.

Any input on this would be appreciated ?

The video-code is called h264. You will need to transmux the video. Or swap flvmux with qtmux.

 

3)      I am not sure why the file that I generate is very large. For example a 9 minute flv file is around 110 megs. This seams large to me.

Is this the expected size ? I am running the software on a FreeBSD server.

It is not the FreeBSD servers fault. You did not say anything about the resolution you use and you don't specify any custom setting on the encoder.

Stefan

 

Any feedback would be greatly appreciated.

 

Rafael Guerra

 

 

 

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