Hi all,
I've read this:
https://www.b4x.com/android/forum/threads/b4x-class-mjpeg-decoder.73702/
but now I'm pretty confused.
I'm confused because in my 3D printing app I managed it in a completely differrent way.
I explain better here, in my app I had necessity to stream a realtime video of 3D printer while it print, for this I used ESP32CAM:
using a modified version of CameraWebServer sketch:
https://github.com/espressif/arduin...es/Camera/CameraWebServer/CameraWebServer.ino
On B4A side I just put a WebView on the Activity and a ListView where I put some urls, to point a camera I just select ESP32 IP address and I see the exposed webserver with all camera controls and a START STREAM button. If I press it I can see the stream.
I can even bypass the main page with camera controls and point directly to the stream url this way: ESP32_IP_ADDRESS:80/stream
The framerate is not bad, around 5 fps at 1600x1200, it increases by decreasing resolution, at 1024x768 it is around 20 fps and with lowers resolutions it increase up 45 fps at 176x144.
In past I've tried other solutions like stream a PC webcam, CCTV etc... but the max framerate I archived is around 4 - 5 fps at 640x480 and it involve to have a dedicated pc, not good solution.
My question is, because MJPEG need a decoder ? Maybe just because it do not stream directly on a WebView ?
I need to know it because next days I will attemp to do the same work with Raspberry camera, probably I will use Python, I need to capture and stream MJPEG video stream. I'm not sure if exists a B4J Raspberry camera wrapper. I will search it. Even if you have suggestions on this they are welcome.
Many Thanks for clarifications
I've read this:
https://www.b4x.com/android/forum/threads/b4x-class-mjpeg-decoder.73702/
but now I'm pretty confused.
I'm confused because in my 3D printing app I managed it in a completely differrent way.
I explain better here, in my app I had necessity to stream a realtime video of 3D printer while it print, for this I used ESP32CAM:
using a modified version of CameraWebServer sketch:
https://github.com/espressif/arduin...es/Camera/CameraWebServer/CameraWebServer.ino
On B4A side I just put a WebView on the Activity and a ListView where I put some urls, to point a camera I just select ESP32 IP address and I see the exposed webserver with all camera controls and a START STREAM button. If I press it I can see the stream.
I can even bypass the main page with camera controls and point directly to the stream url this way: ESP32_IP_ADDRESS:80/stream
The framerate is not bad, around 5 fps at 1600x1200, it increases by decreasing resolution, at 1024x768 it is around 20 fps and with lowers resolutions it increase up 45 fps at 176x144.
In past I've tried other solutions like stream a PC webcam, CCTV etc... but the max framerate I archived is around 4 - 5 fps at 640x480 and it involve to have a dedicated pc, not good solution.
My question is, because MJPEG need a decoder ? Maybe just because it do not stream directly on a WebView ?
I need to know it because next days I will attemp to do the same work with Raspberry camera, probably I will use Python, I need to capture and stream MJPEG video stream. I'm not sure if exists a B4J Raspberry camera wrapper. I will search it. Even if you have suggestions on this they are welcome.
Many Thanks for clarifications
Last edited:
