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Frantisek Hrbata ad15109daa change(examples): explicitly specify component dependencies for examples

Currently, several examples do not explicitly state their component
dependencies, relying instead on the default behavior that includes all
registered components and commonly required ones in the build.
Explicitly adding component dependencies can reduce build time when
set(COMPONENTS main) is used.

Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>

2024-11-20 14:11:24 +01:00

main

change(examples): explicitly specify component dependencies for examples

2024-11-20 14:11:24 +01:00

resources

feat(jpeg_encoder): Add the example support for jpeg encoder

2024-04-01 20:03:38 +08:00

CMakeLists.txt

feat(jpeg_encoder): Add the example support for jpeg encoder

2024-04-01 20:03:38 +08:00

README.md

change(jpeg): Clean up some mess code in jpeg encoder

2024-04-09 11:33:29 +08:00

sdkconfig.defaults.esp32p4

feat(jpeg_encoder): Add the example support for jpeg encoder

2024-04-01 20:03:38 +08:00

README.md

Supported Targets	ESP32-P4

JPEG encode example

Overview

This example demonstrates how to use the JPEG hardware encoder to encode a 1080p picture:

This example makes use of the hardware-based JPEG encoder. If you have multiple pictures that need to be decoded, such as *.rgb -> *.jpg, you can use this example to accelerate encoding.

How to use example

Hardware Required

An Espressif development board based on a chip listed in supported targets
A USB cable for power supply and serial communication
Computer with ESP-IDF installed and configured
The raw picture is the only source that you need to prepare (We have an esp1080p.rgb in resources folder, you can also get it from jpeg_decode example).
ffmpeg can also be used to produce rgb picture. For example ffmpeg -i input.jpg -pix_fmt rgb24 output.rgb

Build and Flash

Before you start build and flash this example, please put the image esp1080.rgb in your sdcard.

Enter idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

I (1114) jpeg.example: Initializing SD card
I (1114) gpio: GPIO[43]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (1124) gpio: GPIO[44]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (1134) gpio: GPIO[39]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (1144) gpio: GPIO[40]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (1154) gpio: GPIO[41]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (1164) gpio: GPIO[42]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (1414) gpio: GPIO[42]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
Name: SD64G
Type: SDHC/SDXC
Speed: 40.00 MHz (limit: 40.00 MHz)
Size: 60906MB
CSD: ver=2, sector_size=512, capacity=124735488 read_bl_len=9
SSR: bus_width=4
I (1434) jpeg.example: infile_1080p:/sdcard/esp1080.rgb
I (5174) jpeg.example: outfile:/sdcard/outjpg.jpg
I (5284) jpeg.example: Card unmounted
I (5284) main_task: Returned from app_main()

Troubleshooting

(For any technical queries, please open an issue on GitHub. We will get back to you as soon as possible.)