Red Hat Bugzilla – Bug 450458
gthumb causes thrashing when importing large videos
Last modified: 2009-07-14 11:02:38 EDT
Description of problem:
When importing videos from USB/PTP still/video camera, gthumb causes system
thrashing by trying to read the whole video into memory (hundreds of megabytes,
or even several gigabytes)
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. run gthumb --import-photos when usb/ptp camera is connected and contains a
Observe huge memory allocation and thrashing.
Should copy the file without allocating gigs of RAM.
The offending code is here:
camera_folder = remove_level_from_path (camera_path);
camera_filename = file_name_from_path (camera_path);
After gp_file_new, "file" argument becomes of type GP_FILE_ACCESSTYPE_MEMORY.
The in-memory file is then saved to disk by an extra call to gp_file_save. For
movies this is invalid - they can be very large and it's illegal to expect them
to fit into system memory in their entirety.
Instead, "file" should be initialized to type GP_FILE_ACCESSTYPE_FD and path
"local_path" and gp_camera_file_get will take care of saving it to hard drive,
without an extra call to gp_file_save.
Forgot to mention - this code is in file dlg-photo-importer.c:1286.
I just hit this same problem on Fedora Core 10. I import 1 - 6 gig video files from my flash card. I only have 1 gig of memory so GThumb ends up dying because it can not fit into memory or swap. I am rather surprised that nobody else is complaining about this.
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