photopc - utility to control digital cameras based on Sierra Imaging firmware
photopc [-h] [-V] [-v[v]] [-q] [-z] [-t] [-f timeformat] [-s <speed>] [-l <device>] [command [params] ] ...
This is a command line tool to manipulate digital still cameras that use certain control protocol, namely Agfa ePhoto line, Epson PhotoPC line, Olympus D-xxxL line, Sanyo and Nikon (at least CoolPix 900) cameras. It can set camera parameters, download and erase pictures, e.t.c. It was originally developed for Epson PhotoPC 500, now the author uses it with Olympus D-600L, results with other models may vary.
-h This option produces a help screen of all options and commands. -V This option prints software revision information. -v This option enables verbose output. Using two -v options increases the level of verbosity. This is primarily meant for debugging. -q This option sets quite mode. If it is not specified, the program will show running download progress indi- cator. -z This option sets no time-zone processing mode. Use this option if the camera's clock is (should be) set up shifted by the local timezone offset. -s speed This option allows setting the data rate to use when communicating with the camera. Valid rates are 9600, 19200, 38400, 57600 and 115200 (the default). -t Set timestamp of generated files to the time of snap- shot. -f timeformat This option allows to specify the format for automat- ically generated image file names; the value is used as the format string for strftime(3) function. By default, names of the format "MMDD_NNN.jpg" are gen- erated, where MM is a month, DD is a day, and NNN is a count starting from 001. A good starting point for the timeformat value could be "%Y_%m_%d-%H_%M_%S.jpg". If the format string con- tains context "%%XXXd" where XXX are digits, it is taken for the count, i.e. if the file with such name is present, next count is tried. If the format string does not contain "%%XXXd" part, the count field, if necessary, is appended at the end of the name. A few single-character formats are used as shortcuts. "x" makes the name of seconds since the epoch in hex- adecimal format (8 characters + ".jpg"), "d" - the same in decimal format (10 characters), "1" stands for default format "%m%d_%%03d.jpg", "2" stands for "%y%m%d%%02d.jpg", "3" stands for "%Y_%m_%d-%H_%M_%S.jpg" and 4 stands for "%Y/%m/%d/%H_%M_%S.jpg". The program attempts to create intermediate directories is necessary (and possible). -l device This allows specifying the serial device to use for communicating with the camera. The default is /dev/photopc (which is typically created as a (sym- bolic) link to the real device, e.g. /dev/ttyS0) in UNIX, and COM1: in DOS and Windows.
After the options, one or more commands can be given on the command line. Some commands accept frame-list as a parameter. Frame list is a comma-separated list of tokens (no whitespace allowed), each of the tokens being a word all , or a sin- gle number, or two numbers separated by a dash (-), or a number followed by a dash and a word last (without whites- pace). query Display all current camera settings. count list List information about frames stored in the camera. Fields displayed are: frame number, size of image file, protection state, resolution mode and times- tamp. Faster than llist but may not work with some (older) models. llist List more information about frames stored in the cam- era. Fields displayed are: frame number, protection state, size of image file, resolution mode, flash, shutter and timestamp. Slower than list and does not work with models that use Exif file format. protect <frame-list> On | Off Change "protected" status of frames. Frame numbering starts at 1. The command will fail if the frame num- ber is omitted, not numeric, or does not correspond to a stored frame. "Protected" frames cannot be erased with "erase" and "eraseall" commands or with the "erase" button on the camera. erase <frame-list> Erase frames. Frame numbering starts at 1. The com- mand will fail if the frame number is omitted, not numeric, or does not correspond to a stored frame. WARNING! note that erasing list may not give expected result. As frames are erased, subsequent frames change their numbers. For example, if you had three frames, and run "erase 1-2", you will have one frame left that was originally frame no. 2, frames no. 1 and 3 will be deleted. To be sure, always specify frames in descending order, e.g "erase 5,2-1". eraseall Erase all stored frames. snapshot Take a picture. off Switch off the camera. This command only has this effect on some models (notably Olympus D-600L). On other models, it just terminate the session immedi- timeout, such as Photopc 600, it may be wise to always issue "off" at the end of command row, to decrease power consumption. All commands going after "off" are ignored. image <frame-list> <file-or-dir-name> Download an image or series of images from the camera to disk file(s) on the host computer. Frame number- ing starts at 1. The command will fail if the frame number is omitted, not numeric, or does not corre- spond to a stored frame. Files are stored in JPEG (JFIF or Exif) format. Image file also contains a thumbnail portion, and set of parameters like the shutter speed, date and time, I.D. string and more. Directory must be specified if frame list is requested. If directory name is specified, down- loaded file(s) will get unique names starting with month and date of snapshot, unless -f option is used, in which case unique names are created according to the format specified. thumbnail <frame-list> <file-or-dir-name> Download a thumbnail image or series of thumbnails from the camera to disk file(s) on the host computer. Frame numbering starts at 1. The command will fail if the frame number is omitted, not numeric, or does not correspond to a stored frame. Files are stored in JPEG (JFIF or Exif) format. If the camera does not keep files in EXIF format, then the thumbnail file also contains a set of parameters like the shutter speed, date and time, I.D. string and more. Direc- tory must be specified if frame list is requested. If directory name is specified, downloaded file(s) will get unique names starting with month and date of snapshot, unless -f option is used. audio <frame-list> <file-or-dir-name> Download an audio notice file or series of files from the camera to disk file(s) on the host computer. Frame numbering starts at 1. The command will fail if the frame number is omitted, not numeric, or does not correspond to a stored frame. Files are stored with ".wav" extention but the format is not RIFF WAV for- mat. It is compressed in some way, probably some variation of ADPCM. The program stores the raw data as provided by the camera, it is not playable as a normal .wav file. Directory must be specified if frame list is requested. If directory name is speci- option is used. preview <file-name> take a `preview' snapshot and save image as a <file- name>. File is in JPEG (JFIF or Exif) format, and does not contain any additional data, just plain (very low resolution) image. upload <file-name> Upload image file into the camera. This command is not enabled in LOWMEMORY version (i.e. under MS/DOS). WARNING! You cannot upload arbitrary JPEG file. Depending on the camera model, such attempt may result in the image not uploaded, not viewable, or even the camera "hung" needing to remove the batter- ies to make it work again. File previously down- loaded from the same camera model is always upload- able. Otherwise, your milage may vary. photopc pro- gram does not perform any checks, so it's up to the user to provide the file in proper format. resolution Hi | Lo | Ext | <number> Set the camera to high, low or extended resolution mode. Exact meaning of the modes is model-dependant and may specify different image dimensions and/or JPEG compression rate. clock Set the camera's internal real-time clock using the current date and time from the host computer. Time of taking a snapshot is included inside the JPEG files produced. Note that the models which display the time on the LCD will then display GMT rather than local time. With -z option, time shifted by the timezone offset is set, and the LCD will display local time. Using unshifted (GMT) time in the camera seems a proper way to go. shutter <speed> Set the camera shutter speed. Units can be specified in microseconds or in traditional form like "1/250". Valid interval depends on the model. If a value out- side the interval is specified, the camera will set the speed to the nearest margin of the valid inter- val. Special speed value auto will set automatic shutter. Note that this only works while the camera always set automatically. Also note that there is no known way to control the aperture value from the host. flash Auto | Force | Off | AntiRedeye | SlowSync Set the camera flash mode. id <string> Set the camera identifier string that is included inside the JPEG files produced. Only few models sup- port this. autoshut-host <seconds> Automatically shut off the camera after that many seconds of inactivity while connected to the computer (on the host). autoshut-field <seconds> Automatically shut off the camera after that many seconds of inactivity while disconnected from the computer (in the field). lcd-autoshut <seconds> Automatically shut off the LCD monitor after that many seconds of inactivity. lcd-brightness <value> Set LCD brightness to the value (valid values are 1 to 7). macro On | Off Set the lens macro mode. As far as I can tell, on fixed focus models macro only means force minimum aperture, not change the focal length. Only has effect in the same invocation with "snapshot" com- mand. color On | Off Set color or B/W mode. dzoom On | Off Set digital zoom on or off. Note that low resolution must be set prior to turning on digital zoom. Only
% photopc query % photopc -f "image%H:%M:%S" eraseall snapshot image 1 .
The latest version of this tool can be found at ftp://ftp.average.org/pub/photopc/; see also WWW page at http://www.average.org/digicam/. Trademarks are properties of their respective owners.
On some models, powersaving timeouts are measured not in seconds but in 1/10 sec units. The program reports them as in seconds. Llist command relies on the format of thumbnail image that does not contain necessary information on some models (e.g. Nikon CP 900), this command does not work for these models. List command, on the contrary, do not display useful data on models that do not return it in the regis- ter 47 (e.g. Agfa 780). The program is known to have some timing problems talking to Nikon CP900 when the camera is "napping" in powersaving mode. Until the problem is solved, a workaround is to run the program this way: $ photopc && photopc <command list>
The program is copyrighted by Eugene G. Crosser <email@example.com> and freely distributable. See README file for detailes. DOS and Windows support copy- right Bruce D. Lightner <firstname.lastname@example.org>
The man page was originally written by Jeff Tranter <email@example.com>, who also contributed a few bug- fixes. Some information about the serial protocol obtained from Jun-ichiro "itojun" Itoh <itojun@ito- jun.org>, Thierry Bousch <firstname.lastname@example.org- psud.fr> and other contributors. epinfo(1), strftime(3), protocol description (protocol.htm in the source distribution).
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