the type of the virtual function ImageStream::getCurrentTime(), and with this fixing a compile and runtime error.
Changed time variables all to use doubles rather than float to be consist with the change to getCurrentTime().
It basically removes the static init() and exit() functions,and move them inside the observer class (the one that cleans everything up when the last media is unloaded).
It also add an extra check to clean up on exit if the QuickTime env is initialized, but no media is succesfully loaded / written (it might happens with streaming resources).
I tested it under WinXP with zero, one and multiple videos.
Stephan reads in copy: could you kindly check if everything runs smooth under OSX as well? Also, have you got a chance to test it with streaming media?
"
Quicktime supports only files with 3/4-channels rgba-files and not 1/2-channels rgb-files.
This submission is from Tatsuhiro Nishioka, here's his original quote:
When FlightGear crashes, the error message
"GraphicsImportGetNaturalBounds failed" shows up. By adding printf
debug, I found the error was -8969: codecBadDataErr when loading a
gray-scaled (2 channels) rgba files even though the file can be loaded
with Gimp and osgViewer properly.
So I made an investigation on this problem and found an interesting
thing. This error occurs only when non-rgb files are loaded before rgb
files. The reason is that rgba files can be handled by both
osgdb_rgb.so and osgdb_qt.so, but the error happens only when
osgdb_qt.so try to load a gray-scaled rgba file.
When a program is about to load an rgba file, osgdb_rgb.so is loaded
and it handles the rgba file properly. In contrast, when a gray-scaled
rgb file is being loaded after a non-rgb file (say png) is already
loaded by osgdb_qt.so, osgdb_qt.so tries to load the file instead of
osgdb_rgb, which causes the error above.
Anyway, the bad thing is that QuickTime cannot handle gray-scaled rgb
files properly. The solution for this is not to let osgdb_qt handle
rgb files since osgdb_rgb can handle these properly.
"
I removed QTtexture.h/.cpp and added QTImportExport.h/.cpp. I updated the CMake-files, I hope they are alright. I used the submitted code in my own apps since two months or so and it seems pretty stable, but as always the migration to the osg-quicktime plugin may have introduced new bugs, so perfect for developer release :)"
from Quicktime/Quicktime.h to QuickTime/QuickTime.h.
MacOsX filesystem is normally case insensitive, but in
my case I changed that option and the quicktime headers
were not found. Now compiles fine and on case insesitive
file systems should work correctly too. "
completed the new registration of the plugin-readerwriters
("REGISTER_OSGPLUGIN") according to your osgstaticviewer-example (see
attachment, based on today's svn)."
is not the usual OpenGL BOTTOM_LEFT orientation, but with the origin TOP_LEFT. This
allows geometry setup code to flip the t tex coord to render the movie the correct way up.
I added a new protected virtual method to ImageStream called
applyLoopingMode() which is called from setLoopingMode. The
quicktime-plugin has an implementation of applyLoopingMode which sets
some flags for the quicktime, so that quicktime handles the loop
playback by itself.
This has some benefits:
+ no gaps when looping audio
+ simplified code
Attached you'll find the modified files, hope you'll find them useful."
return the length of the stream.
Implemented the virtual methods in QuicktimeImageStream, (getLength,
getReferenceTime, setTimeMultiplier), to return valid value for each.
"
Stephan and I tested it on Mac and Win.
Just a couple of notes:
* the plugin is able to load both regular 2D images and movie stream. There is a #define QT_HANDLE_IMAGES_ALSO mechanism to indicate whether to use it for images or not. This is defined by default on Mac only, to avoid conflicts with the standard windows plugins. See comments on QTUtils.h
* de-initialization of quicktime before exit is now left to an observer, which calls exitQuicktime() when last media loaded with the plugin is released. This prevent a crash on exit without need of any extra call external to the plugin."
