Initial import of uvccapture v0.5

ChangeLog

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+-- uvccapture 0.4 21.03.2006 --
+Lots of changes:
+* Added install target in the makefile to install into /usr/local/bin
+* Added signal capturing (CTRL-C, etc) to gracefully exit when in wait loop
+* Added the ability to specify a command to run after each image capture,
+  command is run with the output picture as an argument.  command can be run
+  blocking, or non-blocking.
+* Added support for multiple verbisity levels (add more -v's)
+* Minor output spelling corrections
+* Added output of current bright/contrast/saturation/gain on startup.
+All these thanks to Salvador Gonzalez <ghostx@optonline.net>
+* YVYU Capture Mode - now requires jpeglib, activated for images sizes >960x720
+  allows adjustment of JPEG compression quality (-q) or manually activated (-m)
+YUYV -> JPEG code thanks to Philip Heron <phil@firestorm.cx>
+
+-- uvccapture 0.3 19.02.2006 --
+Removed the JPEG decoding files (util.*) and the calls to convert-frame during
+the capture of images. This decoding was only important for SDL display, which
+is already gone. Peak CPU usage has gone from ~30% to 0.6%.
+
+Thanks to Philip Heron <phil@firestorm.cx> for the suggestion.

Makefile

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+CC=gcc
+CPP=g++
+APP_BINARY=uvccapture
+VERSION = 0.4
+PREFIX=/usr/local/bin
+
+WARNINGS = -Wall
+
+
+CFLAGS = -std=gnu99 -O2 -DLINUX -DVERSION=\"$(VERSION)\" $(WARNINGS)
+CPPFLAGS = $(CFLAGS)
+
+OBJECTS= uvccapture.o v4l2uvc.o
+
+
+all:    uvccapture
+
+clean:
+	@echo "Cleaning up directory."
+	rm -f *.a *.o $(APP_BINARY) core *~ log errlog
+
+install:
+	install $(APP_BINARY) $(PREFIX)
+
+# Applications:
+uvccapture: $(OBJECTS)
+	$(CC)   $(OBJECTS) $(XPM_LIB) $(MATH_LIB) -ljpeg -o $(APP_BINARY)

README

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+uvccapture: USB UVC Video Class Snapshot Software
+Newest versions always available at http://staticwave.ca/source/uvccapture
+
+This software is based of the package luvcview:
+Copyright (C) 2005 2006 Laurent Pinchart &&  Michel Xhaard
+
+Modifications and updates:
+Copyright (C) 2006  Gabriel A. Devenyi <ace@staticwave.ca>
+
+This program communicates via the USB UVC Video Class driver for V4L2, available
+at http://linux-uvc.berlios.de/.
+
+The purpose of this software is to capture an image from a USB webcam at a
+specified interval, and save it to a JPEG file, no other formats are supported,
+imagemagick can handle anything else you might need.
+
+Right now this software is really a hack, since still image support is not yet
+available in the UVC driver. The program continually polls the UVC driver in
+MJPEG mode, and at a specified interval writes a JPEG header and a single frame
+to file, creating a JPEG image. Because of this continuous polling, this program
+has high CPU usage. Input checking is pretty trusting, so call it with the right
+parameters.
+
+In order for this software to work, whatever device you pass to -d you will need
+to have read/write rights to, please see appropriate /dev documentation for how
+to do this.
+
+This software depends on jpeglib(present on almost all systems)
+
+For usage information, run uvccapture -h

TODO

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+*Add support for PAN and TILT