Fix memor leak when using rtsp camera

Description of Patch

Fix various memory leak reported by valgrind.

Installation of Patch

Download the patch file. If it is packed as a gz or tar.gz unpack it first. Then copy it to the motion source directory and issue the command (assuming the patch file is called filename_of_patch_file.diff)

patch < filename_of_patch_file.diff

Then re-build Motion and test the patch.

Change History of Patch

• 1.0 Initial revision - fix netcam_cleanup(), rtsp_free_context() and netcam_read_rtsp_image()

Discussion and Comments

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• fix_mem_leak_in_netcam_rtsp.patch: Fix memory leak when using rtsp camera