B4J Question Mjpeg class - how I can save streaming in a video file?

[stefanogoria]

Hi to all, I am using mjpeg library to show contents of video streaming, I can save one image like a snapshot but i would like also save a portion of this stream in a video file. How I can do It? Thanks in advance for replays

 

[Erel]

Moved to the questions forum.

 

[stefanogoria]

Moved to the questions forum.

Hi Erel, do you have some suggestions for me ?

 

[teddybear]

Hi to all, I am using mjpeg library to show contents of video streaming, I can save one image like a snapshot but i would like also save a portion of this stream in a video file. How I can do It? Thanks in advance for replays

You can convert images to video file using ffmpeg

 

[stefanogoria]

You can convert images to video file using ffmpeg

Thanks teddybear. I Have tried with the images created by my snapshot function (every frame) and this is the response

[png @ 000001bab32aa0c0] Invalid PNG signature 0xFFD8FFDB00430008.

The same command works with images created with Gimp ed exported as png

Any Idea ? I googled without luck

 

[teddybear]

Thanks teddybear. I Have tried with the images created by my snapshot function (every frame) and this is the response

[png @ 000001bab32aa0c0] Invalid PNG signature 0xFFD8FFDB00430008.

The same command works with images created with Gimp ed exported as png

Any Idea ? I googled without luck

What is your snapshot function and how does it save every frame image as the file?

 

[Erel]

You can use this decoder: https://www.b4x.com/android/forum/threads/b4x-class-mjpeg-decoder.73702/#content
Modify it to expose the images.

Encoding it as a real video will require something like ffmpeg.

 

[stefanogoria]

You can use this decoder: https://www.b4x.com/android/forum/threads/b4x-class-mjpeg-decoder.73702/#content
Modify it to expose the images.

Encoding it as a real video will require something like ffmpeg.

Thanks Erel, this is excatly what I am going to do !! I use MJPEG library (how in 1st post) now I am tring to use shell to pilot ffmpeg. I need 48 hours a day !!
Thanks to you and teddybear !!