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Tested mjpeg encoder limit - about 361 Mpixels/sec #548

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Mar 29, 2022
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Tested mjpeg encoder limit - about 361 Mpixels/sec #548

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10 changes: 9 additions & 1 deletion docs/source/components/nodes/video_encoder.rst
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Expand Up @@ -77,8 +77,16 @@ Usage
Limitations
###########

- HW limit for the encoder is: 3840x2160 pixels at 30FPS or :code:`248 million pixels/second`. The resolution and frame rate can be divided into multiple streams - but the sum of all the pixels/second needs to be below 248 million.
For **H.264 / H.265 encoding**, we have the following limits:
- **248 million pixels/second** limit for the encoder or 3840x2160 pixels at 30FPS. The resolution and frame rate can be divided into multiple streams - but the sum of all the pixels/second needs to be below 248 million.
- Due to a HW constraint, video encoding can be done only on frames whose width values are multiples of 32.
- 4096 pixel max width for a frame.
- Maximum of 3 parallel encoding streams.

The **MJPEG encoder** is capable of 16384x8192 resolution at 500Mpixel/second. From our testing, we were able to encode
4K at 30FPS and 2x 800P at 55FPS.

Note the processing resources of the encoder **are shared** between H.26x and JPEG.

Examples of functionality
#########################
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