Doesn't work with Panasonic Raw files (.cw2)

[MtnBiker]

I think this gem would be great for me because of the speed advantage over mini_exiftool, but I get "RuntimeError: File not readable or no EXIF data in file."

mini_exiftool works as does exiftool from the command line. Obviously something is screening out the Raw files. I couldn't find any extension screening (which I might have been able to hack), but otherwise I haven't a clue.

[tonytonyjan]

Would you mind provide that image for me?

Since this gem is built with libexif, you can try the exif command to see if it still works:

$ brew install exif
$ exif xxx.jpg

[MtnBiker]

Thank you for your quick response. Appreciate your interest. exif 2016.12.31-18.32.25.gs.P.rw2 Corrupt data The data provided does not follow the specification. ExifLoader: The data supplied does not seem to contain EXIF data. exiftool 2016.12.31-18.32.25.gs.P.rw2 ExifTool Version Number : 10.05 File Name : 2016.12.31-18.32.25.gs.P.rw2 Directory : . File Size : 19 MB File Modification Date/Time : 2017:01:13 10:09:25-08:00 File Access Date/Time : 2017:01:13 15:07:28-08:00 File Inode Change Date/Time : 2017:01:13 12:45:24-08:00 File Permissions : rw-r--r-- File Type : RW2 File Type Extension : rw2 MIME Type : image/x-panasonic-rw2 Exif Byte Order : Little-endian (Intel, II) Panasonic Raw Version : 0330 Sensor Width : 4816 Sensor Height : 3464 Sensor Top Border : 8 Sensor Left Border : 8 Sensor Bottom Border : 3456 Sensor Right Border : 4600 Black Level 1 : 1 Black Level 2 : 4 Black Level 3 : 12 Linearity Limit Red : 4095 Linearity Limit Green : 4095 Linearity Limit Blue : 4095 ISO : 3200 High ISO Multiplier Red : 1 High ISO Multiplier Green : 1 High ISO Multiplier Blue : 1 Black Level Red : 128 Black Level Green : 128 Black Level Blue : 128 WB Red Level : 419 WB Green Level : 265 WB Blue Level : 710 Num WB Entries : 7 WB Type 1 : Fine Weather WB RGB Levels 1 : 640 256 412 WB Type 2 : Cloudy WB RGB Levels 2 : 673 256 386 WB Type 3 : Shade WB RGB Levels 3 : 726 256 364 WB Type 4 : Tungsten (Incandescent) WB RGB Levels 4 : 439 256 596 WB Type 5 : Flash WB RGB Levels 5 : 657 256 379 WB Type 6 : D55 WB RGB Levels 6 : 597 256 410 WB Type 7 : ISO Studio Tungsten WB RGB Levels 7 : 439 256 596 X Resolution : 180 Y Resolution : 180 Resolution Unit : inches Software : Ver.1.3 Modify Date : 2017:01:01 02:32:25 Y Cb Cr Positioning : Co-sited Sensitivity Type : Standard Output Sensitivity Components Configuration : Y, Cb, Cr, - Compressed Bits Per Pixel : 2 Light Source : Unknown Image Quality : Raw Firmware Version : 0.1.3.0 White Balance : Auto Focus Mode : AF-C AF Area Mode : 1-area Image Stabilization : On, Mode 1 Macro Mode : Off Shooting Mode : Program Audio : No Data Dump : (Binary data 8200 bytes, use -b option to extract) Flash Bias : 0 Internal Serial Number : (F97) 2013:11:07 no. 0313 Panasonic Exif Version : 0405 Color Effect : Off Time Since Power On : 00:02:18.86 Burst Mode : Off Sequence Number : 0 Contrast Mode : High Noise Reduction : Standard Self Timer : Off Rotation : Horizontal (normal) AF Assist Lamp : Disabled but Required Color Mode : Normal Baby Age : (not set) Optical Zoom Mode : Standard Conversion Lens : Off Travel Day : n/a Contrast : Normal World Time Location : Home Text Stamp : Off Program ISO : Intelligent ISO Advanced Scene Type : 1 Faces Detected : 0 Saturation : Normal Sharpness : Normal Color Temp Kelvin : 2900 Bracket Settings : No Bracket WB Shift AB : 0 WB Shift GM : 0 Flash Curtain : n/a Long Exposure Noise Reduction : Off Panasonic Image Width : 4592 Panasonic Image Height : 3448 AF Point Position : 0.61 0.49 Num Face Positions : 0 Lens Type : LUMIX G VARIO 14-140/F4.0-5.8 Lens Serial Number : 09090083294 Accessory Type : NO-ACCESSORY Accessory Serial Number : 0000000 Lens Firmware Version : 0.1.4.0 Faces Recognized : 0 Title : Baby Name : Landmark : Intelligent Resolution : Standard Burst Speed : 0 Intelligent D-Range : Standard Clear Retouch : Off City 2 : Photo Style : Vivid Shading Compensation : Off Accelerometer Z : 270 Accelerometer X : -8 Accelerometer Y : 77 Camera Orientation : Normal Roll Angle : -1.3 Pitch Angle : -12.9 Sweep Panorama Direction : Off Sweep Panorama Field Of View : 0 Timer Recording : Off Internal ND Filter : 0 HDR : Off Shutter Type : Electronic Clear Retouch Value : undef Touch AE : Off Maker Note Version : 0145 Scene Mode : Off Flash Fired : No Flashpix Version : 0100 Color Space : sRGB Exif Image Width : 1920 Exif Image Height : 1440 Interoperability Index : R98 - DCF basic file (sRGB) Interoperability Version : 0100 Sensing Method : One-chip color area Scene Type : Directly photographed Custom Rendered : Normal Exposure Mode : Auto Digital Zoom Ratio : 0 Focal Length In 35mm Format : 30 mm Scene Capture Type : Standard Gain Control : High gain up PrintIM Version : 0250 Compression : JPEG (old-style) Thumbnail Offset : 14548 Thumbnail Length : 6494 Encoding Process : Baseline DCT, Huffman coding Bits Per Sample : 8 Color Components : 3 Y Cb Cr Sub Sampling : YCbCr4:2:2 (2 1) Jpg From Raw : (Binary data 609466 bytes, use -b option to extract) Make : Panasonic Camera Model Name : DMC-GX7 Strip Offsets : 4294967295 Orientation : Horizontal (normal) Rows Per Strip : 3464 Strip Byte Counts : 0 Raw Data Offset : 614676 Distortion Param 02 : 0.0072021484375 Distortion Param 04 : 0.018829345703125 Distortion Scale : 1 Distortion Correction : On Distortion Param 08 : 0.104278564453125 Distortion Param 09 : 0.0062255859375 Distortion Param 11 : -0.0234375 XMP Toolkit : Image::ExifTool 10.05 Country Code : US Location : Clifton Country : United States Instructions : 2017-01-01 02:32:25 UTC. Time zone of photo is GMT -8 unless TS5? State : California Usage Terms : 19687 seconds from nearest GPS point Current IPTC Digest : 8380ccab7d1912f0b3f972fed7aa7885 Source : P1320428.RW2 Application Record Version : 4 Special Instructions : Lat 33.836709, Lon -118.377721 - Bearing: unknown - Altitude: 42m City : Redondo Beach Exposure Time : 1/13 F Number : 4.1 Exposure Program : Program AE Time Zone Offset : -8 Exif Version : 0230 Date/Time Original : 2017:01:01 02:32:25 Create Date : 2017:01:01 02:32:25 Exposure Compensation : 0 Max Aperture Value : 4.1 Metering Mode : Multi-segment Flash : Off, Did not fire Focal Length : 15.0 mm File Source : Digital Camera GPS Version ID : 2.3.0.0 GPS Latitude Ref : North GPS Longitude Ref : West GPS Altitude Ref : Above Sea Level GPS Time Stamp : 08:00:32 GPS Map Datum : WGS-84 GPS Processing Method : GPS GPS Date Stamp : 2017:01:01 Advanced Scene Mode : Off Aperture : 4.1 Blue Balance : 2.679245 GPS Altitude : 42 m Above Sea Level GPS Date/Time : 2017:01:01 08:00:32Z GPS Latitude : 33 deg 50' 12.15" N GPS Longitude : 118 deg 22' 39.80" W GPS Position : 33 deg 50' 12.15" N, 118 deg 22' 39.80" W Image Height : 3448 Image Width : 4592 Lens ID : LUMIX G VARIO 14-140mm F4.0-5.8 Red Balance : 1.581132 Scale Factor To 35 mm Equivalent: 2.0 Shutter Speed : 1/13 Thumbnail Image : (Binary data 6494 bytes, use -b option to extract) Circle Of Confusion : 0.015 mm Field Of View : 61.9 deg Focal Length : 15.0 mm (35 mm equivalent: 30.0 mm) Hyperfocal Distance : 3.65 m Image Size : 4592x3448 Light Value : 2.8 Megapixels : 15.8 Friends made up for a New Years Eve party. A random picture I used as a sample. I added the gps information with gpsPhoto.pl via a Ruby script. I use mini_exiftool to get and write other information to the file and determine the filename. I saved a version of the file as .jpg and your gem works fine. Feel free to ask other questions. Greg

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On Jan 13, 2017, at 3:05 PM, 簡煒航 (Jian Weihang) ***@***.***> wrote: Would you mind provide that image for me? Since this gem is built with libexif, you can try the exif command to see if it still works: $ brew install exif $ exif xxx.jpg — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#7 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAIeqAfHhd467-hI0CJ47o1Eofzdhlfdks5rSAMmgaJpZM4LjYib>.

[MtnBiker]

[Here's the link to the image](http://knobby.ws/toShare/2016.12.31-18.32.25.gs.P.rw2) as it didn't seem to make it via email. Not sure how to insert, but download linked file works for me. Greg

[MtnBiker]

Just checking back. Just installed on a new computer and still doesn't work. $exif filename >> exif: command not found. And tried in a Ruby script and got File not readable or no EXIF data in file. (Exif::NotReadable)