710 lines
26 KiB
Perl
710 lines
26 KiB
Perl
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#------------------------------------------------------------------------------
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# File: GoPro.pm
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#
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# Description: Read information from GoPro videos
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#
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# Revisions: 2018/01/12 - P. Harvey Created
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#
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# References: 1) https://github.com/gopro/gpmf-parser
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# 2) https://github.com/stilldavid/gopro-utils
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#------------------------------------------------------------------------------
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package Image::ExifTool::GoPro;
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use strict;
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use vars qw($VERSION);
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use Image::ExifTool qw(:DataAccess :Utils);
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use Image::ExifTool::QuickTime;
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$VERSION = '1.02';
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sub ProcessGoPro($$$);
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sub ProcessString($$$);
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sub ScaleValues($$);
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sub AddUnits($$$);
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sub ConvertSystemTime($$);
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# GoPro data types that have ExifTool equivalents (ref 1)
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my %goProFmt = ( # format codes
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# 0x00 - container (subdirectory)
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0x62 => 'int8s', # 'b'
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0x42 => 'int8u', # 'B'
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0x63 => 'string', # 'c' (possibly null terminated)
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0x73 => 'int16s', # 's'
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0x53 => 'int16u', # 'S'
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0x6c => 'int32s', # 'l'
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0x4c => 'int32u', # 'L'
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0x66 => 'float', # 'f'
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0x64 => 'double', # 'd'
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0x46 => 'undef', # 'F' (4-char ID)
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0x47 => 'undef', # 'G' (16-byte uuid)
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0x6a => 'int64s', # 'j'
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0x4a => 'int64u', # 'J'
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0x71 => 'fixed32s', # 'q'
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0x51 => 'fixed64s', # 'Q'
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0x55 => 'undef', # 'U' (16-byte date)
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0x3f => 'undef', # '?' (complex structure)
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);
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# sizes of format codes if different than what FormatSize() would return
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my %goProSize = (
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0x46 => 4,
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0x47 => 16,
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0x55 => 16,
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);
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# tagInfo elements to add units to PrintConv value
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my %addUnits = (
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AddUnits => 1,
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PrintConv => 'Image::ExifTool::GoPro::AddUnits($self, $val, $tag)',
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);
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# Tags found in the GPMF box of Hero6 mp4 videos (ref PH), and
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# the gpmd-format timed metadata of Hero5 and Hero6 videos (ref 1)
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%Image::ExifTool::GoPro::GPMF = (
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PROCESS_PROC => \&ProcessGoPro,
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GROUPS => { 2 => 'Camera' },
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NOTES => q{
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Tags extracted from the GPMF box of GoPro MP4 videos, the APP6 "GoPro" segment
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of JPEG files, and from the "gpmd" timed metadata if the ExtractEmbedded option
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is enabled. Many more tags exist, but are currently unknown and extracted only
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with the -u option. Please let me know if you discover the meaning of any of
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these unknown tags. See L<https://github.com/gopro/gpmf-parser> for details
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about this format.
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},
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ACCL => { #2 (gpmd)
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Name => 'Accelerometer',
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Notes => 'accelerator readings in m/s',
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Binary => 1,
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},
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ALLD => 'AutoLowLightDuration', #1 (gpmd) (untested)
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# APTO (GPMF) - seen: 'RAW' (fmt c)
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ATTD => { #PH (Karma)
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Name => 'Attitude',
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# UNIT=s,rad,rad,rad,rad/s,rad/s,rad/s,
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# TYPE=LffffffB
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# SCAL=1000 1 1 1 1 1 1 1
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Binary => 1,
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},
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ATTR => { #PH (Karma)
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Name => 'AttitudeTarget',
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# UNIT=s,rad,rad,rad,
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# TYPE=Jffff
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# SCAL=1000 1 1 1 1
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Binary => 1,
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},
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AUDO => 'AudioSetting', #PH (GPMF - seen: 'WIND', fmt c)
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# AUPT (GPMF) - seen: 'N' (fmt c)
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BPOS => { #PH (Karma)
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Name => 'Controller',
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Unknown => 1,
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# UNIT=deg,deg,m,deg,deg,m,m,m
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# TYPE=lllfffff
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# SCAL=10000000 10000000 1000 1 1 1 1 1
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%addUnits,
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},
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# BRID (GPMF) - seen: 0 (fmt B)
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# BROD (GPMF) - seen: 'ASK' (fmt c)
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CASN => 'CameraSerialNumber', #PH (GPMF - seen: 'C3221324545448', fmt c)
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# CINF (GPMF) - seen: 0x67376be7709bc8876a8baf3940908618 (fmt B)
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# CMOD (GPMF) - seen: 12,13,17 [13 time-laps video, 17 JPEG] (fmt B)
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CYTS => { #PH (Karma)
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Name => 'CoyoteStatus',
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# UNIT=s,,,,,rad,rad,rad,,
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# TYPE=LLLLLfffBB
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# SCAL=1000 1 1 1 1 1 1 1 1 1
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Binary => 1,
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},
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CSEN => { #PH (Karma)
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Name => 'CoyoteSense',
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# UNIT=s,rad/s,rad/s,rad/s,g,g,g,,,,
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# TYPE=LffffffLLLL
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# SCAL=1000 1 1 1 1 1 1 1 1 1 1
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Binary => 1,
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},
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DEVC => { #PH (gpmd,GPMF, fmt \0)
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Name => 'DeviceContainer',
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SubDirectory => { TagTable => 'Image::ExifTool::GoPro::GPMF' },
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},
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# DVID (GPMF) - DeviceID; seen: 1 (fmt L), HLMT (fmt F)
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DVID => { Name => 'DeviceID', Unknown => 1 }, #2 (gpmd)
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# DVNM (GPMF) seen: 'Video Global Settings' (fmt c), 'Highlights' (fmt c)
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# DVNM (gpmd) seen: 'Camera' (Hero5), 'Hero6 Black' (Hero6), 'GoPro Karma v1.0' (Karma)
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DVNM => 'DeviceName', #PH
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DZOM => { #PH (GPMF - seen: 'Y', fmt c)
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Name => 'DigitalZoom',
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PrintConv => { N => 'No', Y => 'Yes' },
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},
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# DZST (GPMF) - seen: 0 (fmt L) (something to do with digital zoom maybe?)
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# EISA (GPMF) - seen: 'Y','N' [N was for a time-lapse video] (fmt c)
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# EISE (GPMF) - seen: 'Y' (fmt c)
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EMPT => { Name => 'Empty', Unknown => 1 }, #2 (gpmd)
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ESCS => { #PH (Karma)
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Name => 'EscapeStatus',
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# UNIT=s,rpm,rpm,rpm,rpm,rpm,rpm,rpm,rpm,degC,degC,degC,degC,V,V,V,V,A,A,A,A,,,,,,,,,
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# TYPE=JSSSSSSSSssssSSSSSSSSSSSSSSSSB
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# (no SCAL!)
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Unknown => 1,
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%addUnits,
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},
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# EXPT (GPMF) - seen: '' (fmt c)
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FACE => 'FaceDetected', #PH (gpmd)
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FCNM => 'FaceNumbers', #PH (gpmd) (faces counted per frame, ref 1)
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FMWR => 'FirmwareVersion', #PH (GPMF - seen: HD6.01.01.51.00, fmt c)
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FWVS => 'OtherFirmware', #PH (NC) (gpmd - seen: '1.1.11.0', Karma)
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GLPI => { #PH (gpmd, Karma)
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Name => 'GPSPos',
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# UNIT=s,deg,deg,m,m,m/s,m/s,m/s,deg
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# TYPE=LllllsssS
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# SCAL=1000 10000000 10000000 1000 1000 100 100 100 100
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RawConv => '$val', # necessary to use scaled value instead of raw data as subdir data
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SubDirectory => { TagTable => 'Image::ExifTool::GoPro::GLPI' },
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},
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GPRI => { #PH (gpmd, Karma)
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Name => 'GPSRaw',
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# UNIT=s,deg,deg,m,m,m,m/s,deg,,
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# TYPE=JlllSSSSBB
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# SCAL=1000000,10000000,10000000,1000,100,100,100,100,1,1
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Unknown => 1,
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RawConv => '$val', # necessary to use scaled value instead of raw data as subdir data
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SubDirectory => { TagTable => 'Image::ExifTool::GoPro::GPRI' },
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},
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GPS5 => { #2 (gpmd)
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Name => 'GPSInfo',
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# SCAL=10000000,10000000,1000,1000,100
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RawConv => '$val', # necessary to use scaled value instead of raw data as subdir data
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SubDirectory => { TagTable => 'Image::ExifTool::GoPro::GPS5' },
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},
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GPSF => { #2 (gpmd)
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Name => 'GPSMeasureMode',
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PrintConv => {
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2 => '2-Dimensional Measurement',
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3 => '3-Dimensional Measurement',
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},
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},
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GPSP => { #2 (gpmd)
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Name => 'GPSHPositioningError',
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Description => 'GPS Horizontal Positioning Error',
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ValueConv => '$val / 100', # convert from cm to m
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},
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GPSU => { #2 (gpmd)
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Name => 'GPSDateTime',
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Groups => { 2 => 'Time' },
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# (HERO5 writes this in 'c' format, HERO6 writes 'U')
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ValueConv => '$val =~ s/^(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/20$1:$2:$3 $4:$5:/; $val',
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PrintConv => '$self->ConvertDateTime($val)',
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},
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GYRO => { #2 (gpmd)
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Name => 'Gyroscope',
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Notes => 'gyroscope readings in rad/s',
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Binary => 1,
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},
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# HFLG (APP6) - seen: 0
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ISOE => 'ISOSpeeds', #PH (gpmd)
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ISOG => { #2 (gpmd)
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Name => 'ImageSensorGain',
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Binary => 1,
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},
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KBAT => { #PH (gpmd) (Karma)
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Name => 'BatteryStatus',
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# UNIT=A,Ah,J,degC,V,V,V,V,s,%,,,,,%
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# TYPE=lLlsSSSSSSSBBBb
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# SCAL=1000,1000,0.00999999977648258,100,1000,1000,1000,1000,0.0166666675359011,1,1,1,1,1,1
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RawConv => '$val', # necessary to use scaled value instead of raw data as subdir data
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SubDirectory => { TagTable => 'Image::ExifTool::GoPro::KBAT' },
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},
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# LINF (GPMF) - seen: LAJ7061916601668 (fmt c)
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LNED => { #PH (Karma)
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Name => 'LocalPositionNED',
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# UNIT=s,m,m,m,m/s,m/s,m/s
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# TYPE=Lffffff
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# SCAL=1000 1 1 1 1 1 1
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Binary => 1,
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},
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MAGN => 'Magnetometer', #1 (gpmd) (units of uT)
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MINF => { #PH (GPMF - seen: HERO6 Black, fmt c)
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Name => 'Model',
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Groups => { 2 => 'Camera' },
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Description => 'Camera Model Name',
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},
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# MTYP (GPMF) - seen: 0,1,11 [1 for time-lapse video, 11 for JPEG] (fmt B)
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# MUID (GPMF) - seen: 3882563431 2278071152 967805802 411471936 0 0 0 0 (fmt L)
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OREN => { #PH (GPMF - seen: 'U', fmt c)
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Name => 'AutoRotation',
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PrintConv => {
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U => 'Up',
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D => 'Down', # (NC)
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A => 'Auto', # (NC)
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},
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},
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# (most of the "P" tags are ProTune settings - PH)
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PHDR => 'HDRSetting', #PH (APP6 - seen: 0)
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PIMN => 'AutoISOMin', #PH (GPMF - seen: 100, fmt L)
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PIMX => 'AutoISOMax', #PH (GPMF - seen: 1600, fmt L)
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# PRAW (APP6) - seen: 0
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PRES => 'PhotoResolution', #PH (APP6 - seen: '12MP_W')
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PRTN => { #PH (GPMF - seen: 'N', fmt c)
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Name => 'ProTune',
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PrintConv => {
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N => 'Off',
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Y => 'On', # (NC)
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},
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},
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PTCL => 'ColorMode', #PH (GPMF - seen: 'GOPRO', fmt c' APP6: 'FLAT')
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PTEV => 'ExposureCompensation', #PH (GPMF - seen: '0.0', fmt c)
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PTSH => 'Sharpness', #PH (GPMF - seen: 'HIGH', fmt c)
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PTWB => 'WhiteBalance', #PH (GPMF - seen: 'AUTO', fmt c)
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RATE => 'Rate', #PH (GPMF - seen: '0_5SEC', fmt c; APP6 - seen: '4_1SEC')
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RMRK => { #2 (gpmd)
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Name => 'Comments',
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ValueConv => '$self->Decode($val, "Latin")',
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},
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SCAL => { #2 (gpmd) scale factor for subsequent data
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Name => 'ScaleFactor',
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Unknown => 1,
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},
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SCPR => { #PH (Karma) [stream was empty]
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Name => 'ScaledPressure',
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# UNIT=s,Pa,Pa,degC
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# TYPE=Lffs
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# SCAL=1000 0.00999999977648258 0.00999999977648258 100
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%addUnits,
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},
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SHUT => { #2 (gpmd)
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Name => 'ExposureTimes',
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PrintConv => q{
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my @a = split ' ', $val;
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$_ = Image::ExifTool::Exif::PrintExposureTime($_) foreach @a;
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return join ' ', @a;
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},
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},
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SIMU => { #PH (Karma)
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Name => 'ScaledIMU',
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# UNIT=s,g,g,g,rad/s,rad/s,rad/s,T,T,T
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# TYPE=Lsssssssss
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# SCAL=1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
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%addUnits,
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},
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SIUN => { #2 (gpmd - seen : 'm/s2','rad/s')
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Name => 'SIUnits',
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Unknown => 1,
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ValueConv => '$self->Decode($val, "Latin")',
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},
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# SMTR (GPMF) - seen: 'N' (fmt c)
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STMP => { #1 (gpmd)
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Name => 'TimeStamp',
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ValueConv => '$val / 1e6',
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},
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STRM => { #2 (gpmd,GPMF, fmt \0)
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Name => 'NestedSignalStream',
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SubDirectory => { TagTable => 'Image::ExifTool::GoPro::GPMF' },
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},
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STNM => { #2 (gpmd)
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Name => 'StreamName',
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Unknown => 1,
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ValueConv => '$self->Decode($val, "Latin")',
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},
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SYST => { #PH (Karma)
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Name => 'SystemTime',
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# UNIT=s,s
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# TYPE=JJ
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# SCAL=1000000 1000
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# save system time calibrations for later
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RawConv => q{
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my @v = split ' ', $val;
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if (@v == 2) {
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my $s = $$self{SystemTimeList};
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$s or $s = $$self{SystemTimeList} = [ ];
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push @$s, \@v;
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}
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return $val;
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},
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|
|
},
|
||
|
|
# TICK => { Name => 'InTime', Unknown => 1, ValueConv => '$val/1000' }, #1 (gpmd)
|
||
|
|
TMPC => { #2 (gpmd)
|
||
|
|
Name => 'CameraTemperature',
|
||
|
|
PrintConv => '"$val C"',
|
||
|
|
},
|
||
|
|
# TOCK => { Name => 'OutTime', Unknown => 1, ValueConv => '$val/1000' }, #1 (gpmd)
|
||
|
|
TSMP => { Name => 'TotalSamples', Unknown => 1 }, #2 (gpmd)
|
||
|
|
TYPE => { Name => 'StructureType', Unknown => 1 }, #2 (gpmd,GPMF - eg 'LLLllfFff', fmt c)
|
||
|
|
UNIT => { #2 (gpmd) alternative units
|
||
|
|
Name => 'Units',
|
||
|
|
Unknown => 1,
|
||
|
|
ValueConv => '$self->Decode($val, "Latin")',
|
||
|
|
},
|
||
|
|
VFOV => { #PH (GPMF - seen: 'W', fmt c)
|
||
|
|
Name => 'FieldOfView',
|
||
|
|
PrintConv => {
|
||
|
|
W => 'Wide',
|
||
|
|
S => 'Super View', # (NC, not seen)
|
||
|
|
L => 'Linear', # (NC, not seen)
|
||
|
|
},
|
||
|
|
},
|
||
|
|
# VLTA (GPMF) - seen: 78 ('N') (fmt B -- wrong format?)
|
||
|
|
VFRH => { #PH (Karma)
|
||
|
|
Name => 'VisualFlightRulesHUD',
|
||
|
|
BinaryData => 1,
|
||
|
|
# UNIT=m/s,m/s,m,m/s,deg,%
|
||
|
|
# TYPE=ffffsS
|
||
|
|
},
|
||
|
|
# VLTE (GPMF) - seen: 'Y' (fmt c)
|
||
|
|
WBAL => 'ColorTemperatures', #PH (gpmd)
|
||
|
|
WRGB => { #PH (gpmd)
|
||
|
|
Name => 'WhiteBalanceRGB',
|
||
|
|
Binary => 1,
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# GoPro GPS5 tags (ref 2) (Hero5,Hero6)
|
||
|
|
%Image::ExifTool::GoPro::GPS5 = (
|
||
|
|
PROCESS_PROC => \&ProcessString,
|
||
|
|
GROUPS => { 1 => 'GoPro', 2 => 'Location' },
|
||
|
|
VARS => { HEX_ID => 0, ID_LABEL => 'Index' },
|
||
|
|
0 => { # (unit='deg')
|
||
|
|
Name => 'GPSLatitude',
|
||
|
|
PrintConv => 'Image::ExifTool::GPS::ToDMS($self, $val, 1, "N")',
|
||
|
|
},
|
||
|
|
1 => { # (unit='deg')
|
||
|
|
Name => 'GPSLongitude',
|
||
|
|
PrintConv => 'Image::ExifTool::GPS::ToDMS($self, $val, 1, "E")',
|
||
|
|
},
|
||
|
|
2 => { # (unit='m')
|
||
|
|
Name => 'GPSAltitude',
|
||
|
|
PrintConv => '"$val m"',
|
||
|
|
},
|
||
|
|
3 => 'GPSSpeed', # (unit='m/s')
|
||
|
|
4 => 'GPSSpeed3D', # (unit='m/s')
|
||
|
|
);
|
||
|
|
|
||
|
|
# GoPro GPRI tags (ref PH) (Karma)
|
||
|
|
%Image::ExifTool::GoPro::GPRI = (
|
||
|
|
PROCESS_PROC => \&ProcessString,
|
||
|
|
GROUPS => { 1 => 'GoPro', 2 => 'Location' },
|
||
|
|
VARS => { HEX_ID => 0, ID_LABEL => 'Index' },
|
||
|
|
0 => { # (unit='s')
|
||
|
|
Name => 'GPSDateTimeRaw',
|
||
|
|
Groups => { 2 => 'Time' },
|
||
|
|
ValueConv => \&ConvertSystemTime, # convert to date/time based on SystemTime clock
|
||
|
|
PrintConv => '$self->ConvertDateTime($val)',
|
||
|
|
},
|
||
|
|
1 => { # (unit='deg')
|
||
|
|
Name => 'GPSLatitudeRaw',
|
||
|
|
PrintConv => 'Image::ExifTool::GPS::ToDMS($self, $val, 1, "N")',
|
||
|
|
},
|
||
|
|
2 => { # (unit='deg')
|
||
|
|
Name => 'GPSLongitudeRaw',
|
||
|
|
PrintConv => 'Image::ExifTool::GPS::ToDMS($self, $val, 1, "E")',
|
||
|
|
},
|
||
|
|
3 => {
|
||
|
|
Name => 'GPSAltitudeRaw', # (NC)
|
||
|
|
PrintConv => '"$val m"',
|
||
|
|
},
|
||
|
|
# (unknown tags must be defined so that ProcessString() will iterate through all values)
|
||
|
|
4 => { Name => 'GPRI_Unknown4', Unknown => 1, Hidden => 1, PrintConv => '"$val m"' },
|
||
|
|
5 => { Name => 'GPRI_Unknown5', Unknown => 1, Hidden => 1, PrintConv => '"$val m"' },
|
||
|
|
6 => 'GPSSpeedRaw', # (NC) # (unit='m/s' -- should convert to other units?)
|
||
|
|
7 => 'GPSTrackRaw', # (NC) # (unit='deg')
|
||
|
|
8 => { Name => 'GPRI_Unknown8', Unknown => 1, Hidden => 1 }, # (no units)
|
||
|
|
9 => { Name => 'GPRI_Unknown9', Unknown => 1, Hidden => 1 }, # (no units)
|
||
|
|
);
|
||
|
|
|
||
|
|
# GoPro GLPI tags (ref PH) (Karma)
|
||
|
|
%Image::ExifTool::GoPro::GLPI = (
|
||
|
|
PROCESS_PROC => \&ProcessString,
|
||
|
|
GROUPS => { 1 => 'GoPro', 2 => 'Location' },
|
||
|
|
VARS => { HEX_ID => 0, ID_LABEL => 'Index' },
|
||
|
|
0 => { # (unit='s')
|
||
|
|
Name => 'GPSDateTime',
|
||
|
|
Groups => { 2 => 'Time' },
|
||
|
|
ValueConv => \&ConvertSystemTime, # convert to date/time based on SystemTime clock
|
||
|
|
PrintConv => '$self->ConvertDateTime($val)',
|
||
|
|
},
|
||
|
|
1 => { # (unit='deg')
|
||
|
|
Name => 'GPSLatitude',
|
||
|
|
PrintConv => 'Image::ExifTool::GPS::ToDMS($self, $val, 1, "N")',
|
||
|
|
},
|
||
|
|
2 => { # (unit='deg')
|
||
|
|
Name => 'GPSLongitude',
|
||
|
|
PrintConv => 'Image::ExifTool::GPS::ToDMS($self, $val, 1, "E")',
|
||
|
|
},
|
||
|
|
3 => { # (unit='m')
|
||
|
|
Name => 'GPSAltitude', # (NC)
|
||
|
|
PrintConv => '"$val m"',
|
||
|
|
},
|
||
|
|
# (unknown tags must be defined so that ProcessString() will iterate through all values)
|
||
|
|
4 => { Name => 'GLPI_Unknown4', Unknown => 1, Hidden => 1, PrintConv => '"$val m"' },
|
||
|
|
5 => { Name => 'GPSSpeedX', PrintConv => '"$val m/s"' }, # (NC)
|
||
|
|
6 => { Name => 'GPSSpeedY', PrintConv => '"$val m/s"' }, # (NC)
|
||
|
|
7 => { Name => 'GPSSpeedZ', PrintConv => '"$val m/s"' }, # (NC)
|
||
|
|
8 => { Name => 'GPSTrack' }, # (unit='deg')
|
||
|
|
);
|
||
|
|
|
||
|
|
# GoPro KBAT tags (ref PH)
|
||
|
|
%Image::ExifTool::GoPro::KBAT = (
|
||
|
|
PROCESS_PROC => \&ProcessString,
|
||
|
|
GROUPS => { 1 => 'GoPro', 2 => 'Camera' },
|
||
|
|
VARS => { HEX_ID => 0, ID_LABEL => 'Index' },
|
||
|
|
NOTES => 'Battery status information found in GoPro Karma videos.',
|
||
|
|
0 => { Name => 'BatteryCurrent', PrintConv => '"$val A"' },
|
||
|
|
1 => { Name => 'BatteryCapacity', PrintConv => '"$val Ah"' },
|
||
|
|
2 => { Name => 'KBAT_Unknown2', PrintConv => '"$val J"', Unknown => 1, Hidden => 1 },
|
||
|
|
3 => { Name => 'BatteryTemperature', PrintConv => '"$val C"' },
|
||
|
|
4 => { Name => 'BatteryVoltage1', PrintConv => '"$val V"' },
|
||
|
|
5 => { Name => 'BatteryVoltage2', PrintConv => '"$val V"' },
|
||
|
|
6 => { Name => 'BatteryVoltage3', PrintConv => '"$val V"' },
|
||
|
|
7 => { Name => 'BatteryVoltage4', PrintConv => '"$val V"' },
|
||
|
|
8 => { Name => 'BatteryTime', PrintConv => 'ConvertDuration(int($val + 0.5))' }, # (NC)
|
||
|
|
9 => { Name => 'KBAT_Unknown9', PrintConv => '"$val %"', Unknown => 1, Hidden => 1, },
|
||
|
|
10 => { Name => 'KBAT_Unknown10', Unknown => 1, Hidden => 1 }, # (no units)
|
||
|
|
11 => { Name => 'KBAT_Unknown11', Unknown => 1, Hidden => 1 }, # (no units)
|
||
|
|
12 => { Name => 'KBAT_Unknown12', Unknown => 1, Hidden => 1 }, # (no units)
|
||
|
|
13 => { Name => 'KBAT_Unknown13', Unknown => 1, Hidden => 1 }, # (no units)
|
||
|
|
14 => { Name => 'BatteryLevel', PrintConv => '"$val %"' },
|
||
|
|
);
|
||
|
|
|
||
|
|
# GoPro fdsc tags written by the Hero5 and Hero6 (ref PH)
|
||
|
|
%Image::ExifTool::GoPro::fdsc = (
|
||
|
|
GROUPS => { 2 => 'Camera' },
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
NOTES => q{
|
||
|
|
Tags extracted from the MP4 "fdsc" timed metadata when the ExtractEmbedded
|
||
|
|
option is used.
|
||
|
|
},
|
||
|
|
0x08 => { Name => 'FirmwareVersion', Format => 'string[15]' },
|
||
|
|
0x17 => { Name => 'SerialNumber', Format => 'string[16]' },
|
||
|
|
0x57 => { Name => 'OtherSerialNumber', Format => 'string[15]' }, # (NC)
|
||
|
|
0x66 => {
|
||
|
|
Name => 'Model',
|
||
|
|
Description => 'Camera Model Name',
|
||
|
|
Format => 'string[16]',
|
||
|
|
},
|
||
|
|
# ...
|
||
|
|
# after this there are lots of interesting values also found in the GPMF box,
|
||
|
|
# but this block is lacking tag ID's and any directory structure, so the
|
||
|
|
# value offsets are therefore presumably firmware dependent :(
|
||
|
|
);
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Convert system time to date/time string
|
||
|
|
# Inputs: 0) system time value, 1) ExifTool ref
|
||
|
|
# Returns: EXIF-format date/time string with milliseconds
|
||
|
|
sub ConvertSystemTime($$)
|
||
|
|
{
|
||
|
|
my ($val, $et) = @_;
|
||
|
|
my $s = $$et{SystemTimeList} or return '<uncalibrated>';
|
||
|
|
unless ($$et{SystemTimeListSorted}) {
|
||
|
|
$s = $$et{SystemTimeList} = [ sort { $$a[0] <=> $$b[0] } @$s ];
|
||
|
|
$$et{SystemTimeListSorted} = 1;
|
||
|
|
}
|
||
|
|
my ($i, $j) = (0, $#$s);
|
||
|
|
# perform binary search to find this system time value
|
||
|
|
while ($j - $i > 1) {
|
||
|
|
my $t = int(($i + $j) / 2);
|
||
|
|
($val < $$s[$t][0] ? $j : $i) = $t;
|
||
|
|
}
|
||
|
|
if ($i == $j or $$s[$j][0] == $$s[$i][0]) {
|
||
|
|
$val = $$s[$i][1];
|
||
|
|
} else {
|
||
|
|
# interpolate between values
|
||
|
|
$val = $$s[$i][1] + ($$s[$j][1] - $$s[$i][1]) * ($val - $$s[$i][0]) / ($$s[$j][0] - $$s[$i][0]);
|
||
|
|
}
|
||
|
|
# (a bit tricky to remove fractional seconds then add them back again after
|
||
|
|
# the date/time conversion while avoiding round-off errors which could
|
||
|
|
# put the seconds out by 1...)
|
||
|
|
my ($t, $f) = ("$val" =~ /^(\d+)(\.\d+)/);
|
||
|
|
return Image::ExifTool::ConvertUnixTime($t, $$et{OPTIONS}{QuickTimeUTC}) . $f;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Scale values by last 'SCAL' constants
|
||
|
|
# Inputs: 0) value or list of values, 1) string of scale factors
|
||
|
|
# Returns: nothing, but updates values
|
||
|
|
sub ScaleValues($$)
|
||
|
|
{
|
||
|
|
my ($val, $scl) = @_;
|
||
|
|
return unless $val and $scl;
|
||
|
|
my @scl = split ' ', $scl or return;
|
||
|
|
my @scaled;
|
||
|
|
my $v = (ref $val eq 'ARRAY') ? $val : [ $val ];
|
||
|
|
foreach $val (@$v) {
|
||
|
|
my @a = split ' ', $val;
|
||
|
|
$a[$_] /= $scl[$_ % @scl] foreach 0..$#a;
|
||
|
|
push @scaled, join(' ', @a);
|
||
|
|
}
|
||
|
|
$_[0] = @scaled > 1 ? \@scaled : $scaled[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Add units to values for human-readable output
|
||
|
|
# Inputs: 0) ExifTool ref, 1) value, 2) tag key
|
||
|
|
# Returns: converted value
|
||
|
|
sub AddUnits($$$)
|
||
|
|
{
|
||
|
|
my ($et, $val, $tag) = @_;
|
||
|
|
if ($et and $$et{TAG_EXTRA}{$tag} and $$et{TAG_EXTRA}{$tag}{Units}) {
|
||
|
|
my $u = $$et{TAG_EXTRA}{$tag}{Units};
|
||
|
|
$u = [ $u ] unless ref $u eq 'ARRAY';
|
||
|
|
my @a = split ' ', $val;
|
||
|
|
if (@$u == @a) {
|
||
|
|
my $i;
|
||
|
|
for ($i=0; $i<@a; ++$i) {
|
||
|
|
$a[$i] .= ' ' . $$u[$i] if $$u[$i];
|
||
|
|
}
|
||
|
|
$val = join ' ', @a;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $val;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Process string of values (or array of strings) to extract as separate tags
|
||
|
|
# Inputs: 0) ExifTool object ref, 1) directory information ref, 2) tag table ref
|
||
|
|
# Returns: 1 on success
|
||
|
|
sub ProcessString($$$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo, $tagTablePtr) = @_;
|
||
|
|
my $dataPt = $$dirInfo{DataPt};
|
||
|
|
my @list = ref $$dataPt eq 'ARRAY' ? @{$$dataPt} : ( $$dataPt );
|
||
|
|
my ($string, $val);
|
||
|
|
$et->VerboseDir('GoPro structure');
|
||
|
|
foreach $string (@list) {
|
||
|
|
my @val = split ' ', $string;
|
||
|
|
my $i = 0;
|
||
|
|
foreach $val (@val) {
|
||
|
|
$et->HandleTag($tagTablePtr, $i, $val);
|
||
|
|
$$tagTablePtr{++$i} or $i = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Process GoPro metadata (gpmd samples, GPMF box, or APP6) (ref PH/1/2)
|
||
|
|
# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
|
||
|
|
# Returns: 1 on success
|
||
|
|
sub ProcessGoPro($$$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo, $tagTablePtr) = @_;
|
||
|
|
my $dataPt = $$dirInfo{DataPt};
|
||
|
|
my $base = $$dirInfo{Base};
|
||
|
|
my $pos = $$dirInfo{DirStart} || 0;
|
||
|
|
my $dirEnd = $pos + ($$dirInfo{DirLen} || (length($$dataPt) - $pos));
|
||
|
|
my $verbose = $et->Options('Verbose');
|
||
|
|
my $unknown = $verbose || $et->Options('Unknown');
|
||
|
|
my ($size, $type, $unit, $scal, $setGroup0);
|
||
|
|
|
||
|
|
$et->VerboseDir($$dirInfo{DirName} || 'GPMF', undef, $dirEnd-$pos) if $verbose;
|
||
|
|
if ($pos) {
|
||
|
|
my $parent = $$dirInfo{Parent};
|
||
|
|
$setGroup0 = $$et{SET_GROUP0} = 'APP6' if $parent and $parent eq 'APP6';
|
||
|
|
} else {
|
||
|
|
# set group0 to "QuickTime" unless group1 is being changed (to Track#)
|
||
|
|
$setGroup0 = $$et{SET_GROUP0} = 'QuickTime' unless $$et{SET_GROUP1};
|
||
|
|
}
|
||
|
|
|
||
|
|
for (; $pos+8<=$dirEnd; $pos+=($size+3)&0xfffffffc) {
|
||
|
|
my ($tag,$fmt,$len,$count) = unpack("x${pos}a4CCn", $$dataPt);
|
||
|
|
$size = $len * $count;
|
||
|
|
$pos += 8;
|
||
|
|
last if $pos + $size > $dirEnd;
|
||
|
|
my $tagInfo = $et->GetTagInfo($tagTablePtr, $tag);
|
||
|
|
last if $tag eq "\0\0\0\0"; # stop at null tag
|
||
|
|
next unless $size or $verbose; # don't save empty values unless verbose
|
||
|
|
my $format = $goProFmt{$fmt} || 'undef';
|
||
|
|
my ($val, $i, $j, $p, @v);
|
||
|
|
if ($fmt eq 0x3f and defined $type) {
|
||
|
|
# decode structure with format given by previous 'TYPE'
|
||
|
|
for ($i=0; $i<$count; ++$i) {
|
||
|
|
my (@s, $l);
|
||
|
|
for ($j=0, $p=0; $j<length($type); ++$j, $p+=$l) {
|
||
|
|
my $b = Get8u(\$type, $j);
|
||
|
|
my $f = $goProFmt{$b} or last;
|
||
|
|
$l = $goProSize{$b} || Image::ExifTool::FormatSize($f) or last;
|
||
|
|
last if $p + $l > $len;
|
||
|
|
my $s = ReadValue($dataPt, $pos+$i*$len+$p, $f, undef, $l);
|
||
|
|
last unless defined $s;
|
||
|
|
push @s, $s;
|
||
|
|
}
|
||
|
|
push @v, join ' ', @s if @s;
|
||
|
|
}
|
||
|
|
$val = @v > 1 ? \@v : $v[0];
|
||
|
|
} elsif (($format eq 'undef' or $format eq 'string') and $count > 1 and $len > 1) {
|
||
|
|
# unpack multiple undef/string values as a list
|
||
|
|
my $a = $format eq 'undef' ? 'a' : 'A';
|
||
|
|
$val = [ unpack("x${pos}".("$a$len" x $count), $$dataPt) ];
|
||
|
|
} else {
|
||
|
|
$val = ReadValue($dataPt, $pos, $format, undef, $size);
|
||
|
|
}
|
||
|
|
# save TYPE, UNIT/SIUN and SCAL values for later
|
||
|
|
$type = $val if $tag eq 'TYPE';
|
||
|
|
$unit = $val if $tag eq 'UNIT' or $tag eq 'SIUN';
|
||
|
|
$scal = $val if $tag eq 'SCAL';
|
||
|
|
|
||
|
|
unless ($tagInfo) {
|
||
|
|
next unless $unknown;
|
||
|
|
my $name = Image::ExifTool::QuickTime::PrintableTagID($tag);
|
||
|
|
$tagInfo = { Name => "GoPro_$name", Description => "GoPro $name", Unknown => 1 };
|
||
|
|
$$tagInfo{SubDirectory} = { TagTable => 'Image::ExifTool::GoPro::GPMF' } if not $fmt;
|
||
|
|
AddTagToTable($tagTablePtr, $tag, $tagInfo);
|
||
|
|
}
|
||
|
|
# apply scaling if available to last tag in this container
|
||
|
|
ScaleValues($val, $scal) if $scal and $tag ne 'SCAL' and $pos+$size+3>=$dirEnd;
|
||
|
|
my $key = $et->HandleTag($tagTablePtr, $tag, $val,
|
||
|
|
DataPt => $dataPt,
|
||
|
|
Base => $base,
|
||
|
|
Start => $pos,
|
||
|
|
Size => $size,
|
||
|
|
TagInfo => $tagInfo,
|
||
|
|
Format => $format,
|
||
|
|
Extra => $verbose ? ", type='".($fmt ? chr($fmt) : '\0')."' size=$len count=$count" : undef,
|
||
|
|
);
|
||
|
|
# save units for adding in print conversion if specified
|
||
|
|
$$et{TAG_EXTRA}{$key}{Units} = $unit if $$tagInfo{AddUnits} and $key;
|
||
|
|
}
|
||
|
|
delete $$et{SET_GROUP0} if $setGroup0;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
1; # end
|
||
|
|
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
Image::ExifTool::GoPro - Read information from GoPro videos
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
This module is used by Image::ExifTool
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
This module contains definitions required by Image::ExifTool to decode
|
||
|
|
metadata from GoPro MP4 videos.
|
||
|
|
|
||
|
|
=head1 AUTHOR
|
||
|
|
|
||
|
|
Copyright 2003-2018, Phil Harvey (phil at owl.phy.queensu.ca)
|
||
|
|
|
||
|
|
This library is free software; you can redistribute it and/or modify it
|
||
|
|
under the same terms as Perl itself.
|
||
|
|
|
||
|
|
=head1 REFERENCES
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item L<https://github.com/gopro/gpmf-parser>
|
||
|
|
|
||
|
|
=item L<https://github.com/stilldavid/gopro-utils>
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<Image::ExifTool::TagNames/GoPro Tags>,
|
||
|
|
L<Image::ExifTool(3pm)|Image::ExifTool>
|
||
|
|
|
||
|
|
=cut
|
||
|
|
|