the strange about the jpeg picture

[平民四月份]

Hi all:

     sorry for my poor english.

     there is a jpeg picture, which was composed  by 4 other jpeg pictures with "image/jpeg". when i shared it to SNS(s).  the http://weibo.com is ok. but the http://t.qq.com can't recognised it with error: "图片上传过程中出错，请稍后再试(Upload  is failed, please retry it later.)".  i had shared it to t.qq.com  about 5 times. but it's failed with the same error  everytime.    the other picture, which not created by image/jpeg , the upload operation is suscessfuly, i had compared they all's binary data with ultra-edit. the header info is different. what's wrong?

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[Andrew Gerrand]

It's pretty hard for us to say for sure. "Upload failed" is not a
useful error message.

Can you find any other programs that refuse to read files generated by
image/jpeg? (Preferably an open source program, so that we have some
better insight as to what might be the cause.)

Andrew

[平民四月份]

hi adg:

     i'm sorry for can't find any useful info about this. and i can't find any other programs  refuse to read files generated by image/jpeg too. there is the other picture. which just open the xx.jpg(tha attachment) by http://www.52photo.com and save it.(maybe it changed the head info). it's can be recognisze by t.qq.com, i do not know whether it can help to solve this cause or not.

[平民四月份]

i had use  GraphicsMagick  to convert the picture to another picture with command:

         C:\Users\lewgun>gm convert D:/xx.jpg D:/xx2.jpg

the output info as follows with D:/xx2.jpg:

         gm convert: Invalid SOS parameters for sequential JPEG (D:/xx.jpg).

I had upload this xx2.jpg to t.qq.com, it is failed with the same error.

but i do the steps as follows: 

1. convert to png:

   C:\Users\lewgun>gm convert D:/xx.jpg D:/xx2.png

   gm convert: Invalid SOS parameters for sequential JPEG (D:/xx.jpg).

2. convert from png to jpeg

   C:\Users\lewgun>gm convert D:/xx2.png D:/xx3.jpg

3. upload

   it's successfuly

 gm convert: Invalid SOS parameters for sequential JPEG (D:/xx.jpg).

[Michael Jones]

Great debugging report. It seems that this error is popular across the
web in a variety of programs:

https://www.google.com/search?q=jpeg+sos+parameters&oq=jpeg+sos+parameters

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[minux]

On Monday, August 6, 2012, 平民四月份 wrote:

 gm convert: Invalid SOS parameters for sequential JPEG 

Seems like a bug, please file an issue.

[平民四月份]

finished with 3916

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