drawSdJpeg doesn't work for some jpeg images

[PLSousa]

Hello Bodmer,
Many thanks for this development.

I have used your library to display jpeg images stored in a SD card or in SPIFFS. It has worked successfully for many jpeg files, but not for these ones (cover.jpg, cover2.jpg, cover3.jpg).
Do you have any idea why ?

Basically, I use an ESP32 running ESP32_SDcard_jpeg.ino or Jpeg_ESP32.ino.

ESP32 Jpeg decoder test!
Initialisation done.
Listing SPIFFS files:
=================================================
File name Size
=================================================
/cover2.jpg 14082 bytes
/EagleEye.jpg 37755 bytes
/cover3.jpg 27765 bytes
/cover.jpg 18487 bytes
=================================================

fex.drawJpgFile(SPIFFS, "/EagleEye.jpg", 0, 0); // it displays an image

fex.drawJpgFile(SPIFFS, "/cover.jpg", 0, 0); // nothing is displayed in the TFT 240x240_ST7789

[Bodmer]

jpeg images can be encoded in different ways and not all are supported. You may find that loading the images into a program like Paint, and then saving them as a jpeg will fix it.

[PLSousa]

thank you Bodmer. But I would like to download Jpeg images from the web ( www.fip.fr) and display them, in real time. It is for a webradio project using ESP32. "cover1.jpg is an example of downloaded image. Le ven. 13 nov. 2020 à 13:20, Bodmer <notifications@github.com> a écrit :

…

jpeg images can be encoded in different ways and not all are supported. You may find that loading the images into a program like Paint, and then saving them as a jpeg will fix it. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#27 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AECQPM7LN7XO23E5SKKNQV3SPUQB7ANCNFSM4TRT4EVQ> .

[Bodmer]

Image analysis indicates the jpegs you cannot display are in "Progressive" format and this is not supported by the JPEGDecoder library or TJpg_Decoder libraries. So I have no solution for you :-(

[PLSousa]

thanks anyway Le ven. 13 nov. 2020 à 15:25, Bodmer <notifications@github.com> a écrit :

…

Image analysis indicates the jpegs you cannot display are in "Progressive" format and this is not supported by the JPEGDecoder library or TJpg_Decoder libraries. So I have no solution for you :-( — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#27 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AECQPM4H36DU6OK55DMDZZ3SPU6VZANCNFSM4TRT4EVQ> .