77168 - MJPGs (Motion JPEGs) no longer load or display

Status: VERIFIED DUPLICATE of bug 42224

(Core :: Graphics: ImageLib, defect)

Description

[Brian Poole]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.0 i686; en-US; rv:0.8.1+) Gecko/20010422
BuildID:    2001042221

When you visit a site that displays a MJPG (Motion JPEG), such as
http://www.payneconsulting.com/webcam/, the image does not load. If I press
refresh repeatedly I will sometimes see a first image, but it is quickly
replaced with a blank space.


Reproducible: Always
Steps to Reproduce:
1. Go to http://www.payneconsulting.com/webcam/


Actual Results:  The MJPG/Motion JPEG does not load. It loads in other browsers
correctly (Netscape 4.76/Linux).

Expected Results:  Displayed the MJPG image stream.

I reported a bug related to MJPGs earlier, bug ID #69857, about a memory leak
with them, which was then fixed recently. At some point between the report and
the fix (sorry, I don't have anything near an exact or even approximate date)
MJPGs no longer loaded. I assumed this was part of the development process,
fixing the leak might require breaking the actual functionality for a little
while. However the bug has since been marked as resolved and the functionality
has not been restored on my setup.

Comment 1

[Terri Preston]

I am seeing this on Windows build 2001041804, changing OS to all and status to 
[imglib]

Comment 2

[Stuart Parmenter]

the "image" is reporting from the multipart/x-mixed-replace stream that it is 
text/html?

Comment 3

[Stuart Parmenter]

or maybe i'm looking at the wrong thing.. the jpeg doesn't seem to want to 
load.. bad jpeg or somesuch crap.  i'll play with it.

Comment 4

[Matt Simmons]

I have problems with these too. my site is at
http://midnight.skinnykid.net/work1.html
The image loads, but if i click and drag on the page, the jpeg falls back on the
alt tag. 

Comment 5

[Keyser Sose]

*** Bug 85084 has been marked as a duplicate of this bug. ***

Comment 6

[Christopher Aillon (sabbatical, not receiving bugmail)]

*** Bug 92780 has been marked as a duplicate of this bug. ***

Comment 7

[Pradeep Sanders]

Windows Talkback build of 0.9.3 has related problem: Running WebVideo
(http://www-vs.informatik.uni-ulm.de/soft/wv) and accessing the stream using
Mozilla 0.9.3, everything works smoothly. Pressing the stop button (or hitting
escape, etc..) does not stop the image stream, however, and even when a
different page is loaded the server continues to show that the stream is being
downloaded by Mozilla. Returning to the camera page results in a blank space
where the image should be.

Testcase:
1 Install WebVideo on a machine with a webcam, such as the Sony Vaio Picturebook.
2 Access the JPEG stream using Mozilla 0.9.3.
3 Use the back button to return to a previous page.
4 WebVideo will show that the connection is still open and downloading.
Suggested fix: Have image close/destroy code check for open network connections
and close them.

Good luck!

-Pradeep

Comment 8

[basic]

Can someone familiar with this bug check if it is a duplicate of bug 42224 ?

Comment 9

[WD]

*** This bug has been marked as a duplicate of 42224 ***

Comment 10

[Terri Preston]

Verified Duplicate