Espressif Systems ESP Faq page 47

Chapter 3. application solution
3.6.8 ESP32-S3 only supports MJPEG encoding, but H264/H265 format encoding is
needed when implementing rtsp/rtmp streaming. Is there any encoding that sup-
ports H264/H265 format?
Currently, encoding in H264/H265 format is not supported.
3.6.9 Does ESP32/ESP32-S3 have a camera that supports wide-angle?
Yes, you can refer to the two cameras modules: BF3005 and OV5640.
3.6.10 It takes 5 seconds for ESP32-S2 to display the camera image from power-on. Can
it be improved?
Yes, please refer to the following:
• Try to remove some delay functions in esp_camera_init().
• Change the clock frequency of sccb in menuconfig -> component config -> camera
configuration to 400000.
3.6.11 Can ESP32 directly provide 24 MHz frequency to GC0308 camera?
I'm afraid not. The XCLK provided by ESP32 to GC0308 has been tested, with a maximum stable
test value of 20 MHz.
3.6.12 Does ESP32/ESP32-S3 support MMS streaming protocol?
No, ESP32 and ESP32-S3 do not support the Microsoft Media Server (MMS) streaming protocol di-
rectly. The streaming media protocols supported by ESP32 and ESP32-S3 are RTSP and SIP. If you
need to use ESP32 or ESP32-S3 for scenarios that require MMS protocol support, you can consider
using middleware or converters that support the MMS protocol.
3.6.13 When debugging the GC2145 camera with ESP32-S3, the maximum supported
resolution seems to be 1024x768. If it is adjusted to a larger resolution, such as
1280x720, it will print cam_hal: EV-EOF-OVF error. How to solve this issue?
In this case, it is necessary to reduce the PCLK of GC2145. For specific methods, try to configure a
smaller XCLK and debug the PLL clock coefficient of the camera.
3.6.14 Does ESP32-S3 support GB28181 protocol?
Not yet supported.
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