Baremetal hardware JPEG-decoder example (F1C100S)

Ozelot · 2022-04-20 15:08:25

Simple example of hardware decoding JPEG image.
Resolution 800x480. Decoding time 3-4ms.
Sources: jpgdec.7z

LinjieGuo · 2022-04-20 16:27:08

仰望大佬↑↑↑↑↑↑↑↑↑↑↑

zzm24 · 2022-04-20 19:29:26

大佬什么都极简,还喜欢rt-thread

libc0607 · 2022-04-20 20:40:23

牛啊

村民 · 2022-04-21 09:34:33

仰望大佬↑↑↑↑↑↑↑↑↑↑↑

xfdr0805 · 2022-04-21 10:27:48

Niubility!!!

varzhou · 2022-04-23 23:14:52

Niubility!!!

myxiaonia · 2022-04-23 23:46:59

在乌克兰的坛友，你的国家正遭受战争，为你祈祷

Ozelot · 2022-04-24 00:34:19

myxiaonia 说：

在乌克兰的坛友，你的国家正遭受战争，为你祈祷

Thank you!
There are fights near my city.
We will win!

kin · 2022-04-24 11:25:10

感谢分享！

Ozelot · 2022-04-26 19:25:26

Simple MJPEG decoding (800x480 @ 25fps)
This example also contains module for working with SD memory card and FATFS library.
The vid directory and its contents must be copied to the root directory of the memory card.
Sources: mjpgdec.7z

polestar · 2022-05-04 03:23:04

Thanks for sharing!

very very goooooooooooood

最近编辑记录 polestar (2022-05-04 03:24:15)

thindcna · 2022-05-04 09:57:43

人们可以获得哪些文件来构建此功能？

thindcna · 2022-05-04 11:10:57

Ozelot 说：

Simple example of hardware decoding JPEG image.
Resolution 800x480. Decoding time 3-4ms.
Sources: jpgdec.7z
https://whycan.com/files/members/4572/girl.jpg
https://whycan.com/files/members/4572/flower.jpg

Thank Ozelot. Do you have the document about this feature? For example: Allwinner user manual...?

Ozelot · 2022-05-04 13:35:45

thindcna 说：

Do you have the document about this feature? For example: Allwinner user manual...?

This project is based on CEDRUS sources.
JPEG decoding is fast. YUV2RGB converting in the first sources is slow (~60mS), so in the mjpeg demo I did a table conversion (~24mS).

polestar · 2022-05-04 21:01:59

Was it not possible to launch the H264 decoder ???

Ozelot · 2022-05-04 21:39:13

polestar 说：

Was it not possible to launch the H264 decoder ???

All in good time

polestar · 2022-05-05 17:53:30

Ozelot 说：

polestar 说：
Was it not possible to launch the H264 decoder ???
All in good time

In the hope of victory and a world without war and bloodshed

vuthai · 2022-05-06 20:20:35

你可以上传github

thindcna · 2022-05-06 23:24:14

@Ozelot
very helpful. thank you

视觉℡ · 2022-05-30 17:40:08

感谢大佬分享，最近正在找硬解的相关代码

musich · 2022-05-31 03:44:26

好厉害啊，不知v3s 能否用上。

视觉℡ · 2022-05-31 11:58:49

这个是软件解码，并不是硬件解码

Ozelot · 2022-05-31 16:20:00

视觉℡ 说：

这个是软件解码，并不是硬件解码

Why?

hameyou · 2022-05-31 19:55:06

这个解码是裸机下的还是linux下的

Ozelot · 2022-05-31 20:39:22

hameyou 说：

这个解码是裸机下的还是linux下的

NonOs Baremetal

视觉℡ · 2022-05-31 21:41:50

Ozelot 说：

视觉℡ 说：
这个是软件解码，并不是硬件解码
Why?

非常抱歉，我理解错误。
mjpgdec.bin 在flash中的地址是多少？ 32768？

Ozelot · 2022-05-31 21:58:03

视觉℡ 说：

非常抱歉，我理解错误。
mjpgdec.bin 在flash中的地址是多少？ 32768？

Yes. See makefile:
run: all
$(FEL) -p spl $(BOOT).bin
$(FEL) -p write 0x80000000 $(NAME).bin
$(FEL) exec 0x80000000
flash: all
$(FEL) -p spiflash-write 0 $(BOOT).bin
$(FEL) -p spiflash-write 32768 $(NAME).bin

Ican · 2022-06-19 21:28:29

could you please share this project on github or gitee？i can't download it on this website.

Ozelot · 2022-08-19 19:55:55

Small modification of the previous demo.
Converting tile-based data is done by the mb32dec function. Color conversion - hardware by debe-module.
Decoding time 3-4ms. MB32 transformation 8-9mS. As a result: fps = 1 / (0.004 + 0.009) = 76
Sources: mjpgdec_60fps.7z
60fps video playback example:

最近编辑记录 Ozelot (2022-08-20 04:37:01)

neotendo · 2022-08-22 19:03:14

wow, thats looks cool. keep up, very good work bro

笔走天下 · 2022-08-25 09:14:32

wowo,so good,thank you for your share

robiin · 2022-08-30 14:54:57

nice work.

stephone · 2022-08-31 22:52:01

thats looks cool.

at12 · 2022-12-14 22:08:36

wowo,so good,thank you for your share

Mitko · 2022-12-14 23:36:57

Ozelot 说：

We will win!

You will not win, Ukraine and Russia are the same country. Just Ukrainians are poor and brainwashed by the West. It would be better if Ukraine surrenders.

Ozelot · 2022-12-15 04:51:12

Mitko 说：

You will not win, Ukraine and Russia are the same country. Just Ukrainians are poor and brainwashed by the West. It would be better if Ukraine surrenders.

I am in Ukraine and I tell you - we are fighting for our freedom! Russians are fascists. They are killing our people, so in this war we will accept any help.

Blueskull · 2022-12-15 08:09:05

Dude, this is a TECH forum. May our Russian and Ukrainian friends here be at least peaceful to each other? If you want to go political, Reddit is a good place.

WhyCan Forum(哇酷开发者社区)

楼主 # 2022-04-20 15:08:25 分享评论

Baremetal hardware JPEG-decoder example (F1C100S)

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