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image/jpeg: support progressive mode images #3976

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bradfitz opened this issue Aug 20, 2012 · 4 comments
Closed

image/jpeg: support progressive mode images #3976

bradfitz opened this issue Aug 20, 2012 · 4 comments
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@bradfitz
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@bradfitz bradfitz commented Aug 20, 2012

This is a feature request bug for progressive image support in image/jpeg.

image/jpeg's reader.go contains:

                case marker == sof2Marker: // Start Of Frame (Progressive).                                                           
                        err = UnsupportedError("progressive mode")

Facebook (or some version of the Facebook mobile app maybe?) seems to encode JPEGs as
progressive when scaling them down, which means I can't read them.

Attached is an example.

Attachments:

  1. 255256_10151183168140090_1533251541_n.jpg (90710 bytes)
@robpike
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@robpike robpike commented Aug 20, 2012

Comment 1:

Owner changed to @nigeltao.

Status changed to Accepted.

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@rsc
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@rsc rsc commented Sep 12, 2012

Comment 2:

Labels changed: added go1.1maybe.

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@nigeltao
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@nigeltao nigeltao commented Oct 15, 2012

Comment 3:

This issue was closed by revision 8b624f6.

Status changed to Fixed.

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@bradfitz
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@bradfitz bradfitz commented Oct 15, 2012

Comment 4:

Thanks, Nigel! :)

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@rsc rsc added this to the Go1.1 milestone Apr 14, 2015
@rsc rsc removed the go1.1maybe label Apr 14, 2015
@golang golang locked and limited conversation to collaborators Jun 24, 2016
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5 participants