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Diffstat (limited to 'src/exif_nikon.c')
| -rw-r--r-- | src/exif_nikon.c | 370 |
1 files changed, 370 insertions, 0 deletions
diff --git a/src/exif_nikon.c b/src/exif_nikon.c new file mode 100644 index 0000000..f4a8eea --- /dev/null +++ b/src/exif_nikon.c @@ -0,0 +1,370 @@ +/* exif_nikon.c + +Copyright (C) 2012 Dennis Real. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies of the Software and its documentation and acknowledgment shall be +given in the documentation and software packages that this Software was +used. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +*/ + +#ifdef HAVE_LIBEXIF + +#include <stdio.h> +#include <libexif/exif-data.h> + +#include "feh.h" +#include "debug.h" +#include "exif.h" +#include "exif_nikon.h" + + +/* Flash control mode */ +/* http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#FlashControlMode */ +#define EXN_FLASH_CONTROL_MODES_MAX 9 +char *EXN_NikonFlashControlModeValues[EXN_FLASH_CONTROL_MODES_MAX] = {"Off", + "iTTL-BL", "iTTL", "Auto Aperture", + "Automatic", "GN (distance priority)", + "Manual", "Repeating Flash", + "N/A" /* "N/A" is not a nikon setting */ + }; + +#define EXN_FLASH_CONTROL_MODE_MASK 0x7F + + +/* AFInfo2 */ +/* http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#AFInfo2 */ +#define EXN_CONTRAST_DETECT_AF_MAX 2 +char *EXN_NikonContrastDetectAF[EXN_CONTRAST_DETECT_AF_MAX] = {"Off", "On"}; + +/* AFArea Mode for ContrastDetectAF Off */ +#define EXN_AF_AREA_MODE_P_MAX 13 +char *EXN_NikonAFAreaModePhase[EXN_AF_AREA_MODE_P_MAX] = { + "Single Area", "Dynamic Area", "Dynamic Area (closest subject)", + "Group Dynamic ", "Dynamic Area (9 points) ", "Dynamic Area (21 points)", + "Dynamic Area (51 points) ", "Dynamic Area (51 points, 3D-tracking)", + "Auto-area", "Dynamic Area (3D-tracking)", "Single Area (wide)", + "Dynamic Area (wide)", "Dynamic Area (wide, 3D-tracking)"}; + +/* AFArea Mode for ContrastDetectAF On */ +#define EXN_AF_AREA_MODE_C_MAX 5 +char *EXN_NikonAFAreaModeContr[EXN_AF_AREA_MODE_C_MAX] = { + "Contrast-detect", + "Contrast-detect (normal area)", + "Contrast-detect (wide area)", + "Contrast-detect (face priority)", + "Contrast-detect (subject tracking)"}; + +#define EXN_PHASE_DETECT_AF_MAX 4 +char *EXN_NikonPhaseDetectAF[EXN_PHASE_DETECT_AF_MAX] = {"Off", "On (51-point)", + "On (11-point)", "On (39-point)"}; + +/* PrimaryAFPoint and AFPointsUsed only valid with PhaseDetectAF == On */ + +#define EXN_PRIM_AF_PT_51_MAX 52 +char * EXN_Prim_AF_Pt_51[EXN_PRIM_AF_PT_51_MAX] = {"(none)", "C6 (Center)", "B6", "A5", + "D6", "E5", "C7", "B7", "A6", "D7", "E6", "C5", "B5", "A4", "D5", "E4", "C8", "B8", + "A7", "D8", "E7", "C9", "B9", "A8", "D9", "E8", "C10", "B10", "A9", "D10", "E9", + "C11", "B11", "D11", "C4", "B4", "A3", "D4", "E3", "C3", "B3", "A2", "D3", "E2", + "C2", "B2", "A1", "D2", "E1", "C1", "B1", "D1"}; + +#define EXN_PRIM_AF_PT_11_MAX 12 +char * EXN_Prim_AF_Pt_11[EXN_PRIM_AF_PT_11_MAX] = {"(none)", "Center", "Top", "Bottom", + "Mid-left", "Upper-left", "Lower-left", "Far Left", "Mid-right", "Upper-right", + "Lower-right", "Far Right"}; + +#define EXN_PRIM_AF_PT_39_MAX 40 +char * EXN_Prim_AF_Pt_39[EXN_PRIM_AF_PT_39_MAX] = {"(none)", "C6 (Center)", "B6", "A2", + "D6", "E2", "C7", "B7", "A3", "D7", "E3", "C5", "B5", "A1", "D5", "E1", "C8", "B8", + "D8", "C9", "B9", "D9", "C10", "B10", "D10", "C11", "B11", "D11", "C4", "B4", "D4", + "C3", "B3", "D3", "C2", "B2", "D2", "C1", "B1", "D1"}; + + +static void exn_get_prim_af_pt(unsigned int phasedetectaf, + unsigned int primafpt, + char * buffer, + unsigned int maxsize); +static void exn_get_mnote_nikon_34(ExifData *ed, char * buffer, unsigned int maxsize); +static void exn_get_mnote_nikon_168(ExifData *ed, char * buffer, unsigned int maxsize); +static void exn_get_mnote_nikon_183(ExifData *ed, char * buffer, unsigned int maxsize); + + + +/* get primary AF point */ +static void exn_get_prim_af_pt(unsigned int phasedetectaf, + unsigned int primafpt, + char * buffer, + unsigned int maxsize) +{ + + switch(phasedetectaf) + { + case 0: + { + /* phasedetect not used. should not happen */ + snprintf(buffer, maxsize, "FAIL"); + return; + } + break; + case 1: + { + /* 51 pt */ + if ( primafpt < EXN_PRIM_AF_PT_51_MAX ) + { + snprintf(buffer, maxsize, "%s", EXN_Prim_AF_Pt_51[primafpt]); + } + return; + } + break; + case 2: + { + /* 11 pt */ + if ( primafpt < EXN_PRIM_AF_PT_11_MAX ) + { + snprintf(buffer, maxsize, "%s", EXN_Prim_AF_Pt_11[primafpt]); + } + return; + } + break; + case 3: + { + /* 39 pt */ + if ( primafpt < EXN_PRIM_AF_PT_39_MAX ) + { + snprintf(buffer, maxsize, "%s", EXN_Prim_AF_Pt_39[primafpt]); + } + return; + } + break; + default: + { + snprintf(buffer, maxsize, "?"); + return; + } + break; + + } + +} + + + +/* get ActiveD-Lighting (34) info */ +static void exn_get_mnote_nikon_34(ExifData *ed, char * buffer, unsigned int maxsize) +{ + char buf[EXIF_STD_BUF_LEN]; + unsigned int data = 0; + char *answer; + + buf[0] = '\0'; + exif_get_mnote_tag(ed, 34, buf, sizeof(buf)); + sscanf(buf, "(null): %u", &data); /* not directly supported by libexif yet */ + + switch(data) + { + case 0: + { + answer = "Off"; + } + break; + case 1: + { + answer = "Low"; + } + break; + case 3: + { + answer = "Normal"; + } + break; + case 5: + { + answer = "High"; + } + break; + case 7: + { + answer = "Extra High"; + } + break; + case 65535: + { + answer = "Auto"; + } + break; + default: + { + answer = "N/A"; /* this is not a nikon value */ + } + + } + + snprintf(buffer, maxsize, "Active D-Lightning: %s\n", answer); + +} + + + +/* get nikon Flash info: control mode (168) info */ +static void exn_get_mnote_nikon_168(ExifData *ed, char * buffer, unsigned int maxsize) +{ + char buf[EXIF_STD_BUF_LEN]; + unsigned int version = 0; + unsigned int length = 0; + unsigned int exn_fcm = (EXN_FLASH_CONTROL_MODES_MAX-1); /* default to N/A */ + + /* libexif does not support flash info 168 yet. so we have to parse the debug data :-( */ + buf[0] = '\0'; + exif_get_mnote_tag(ed, 168, buf, sizeof(buf)); + sscanf(buf, "(null): %u bytes unknown data: 303130%02X%*10s%02X", &length, &version, &exn_fcm); + exn_fcm = exn_fcm & EXN_FLASH_CONTROL_MODE_MASK; + + if ( (exn_fcm < EXN_FLASH_CONTROL_MODES_MAX) + && ( ((length == 22) && (version == '3')) /* Nikon FlashInfo0103 */ + || ((length == 22) && (version == '4')) /* Nikon FlashInfo0104 */ + || ((length == 21) && (version == '2')) /* Nikon FlashInfo0102 */ + || ((length == 19) && (version == '0')) /* Nikon FlashInfo0100 */ + ) + ) + { + snprintf(buffer, maxsize, "NikonFlashControlMode: %s\n", EXN_NikonFlashControlModeValues[exn_fcm]); + } + +} + + + +/* get nikon AFInfo2 (183) info */ +static void exn_get_mnote_nikon_183(ExifData *ed, char * buffer, unsigned int maxsize) +{ + char buf[EXIF_STD_BUF_LEN]; + unsigned int contrastdetectaf = 0; + unsigned int afareamode = 0; + unsigned int phasedetectaf = 0; + unsigned int primaryafpoint = 0; + unsigned int version = 0; + unsigned int length = 0; + + /* AFInfo2 */ + /* libexif does not support AFInfo2 183 yet. so we have to parse the debug data :-( */ + buf[0] = '\0'; + exif_get_mnote_tag(ed, 183, buf, sizeof(buf)); + sscanf(buf, "(null): %u bytes unknown data: 303130%02X%02X%02X%02X%02X", &length, &version, + &contrastdetectaf, + &afareamode, + &phasedetectaf, + &primaryafpoint + ); + + + if ( ((length == 30) && (version == '0')) + && (contrastdetectaf < EXN_CONTRAST_DETECT_AF_MAX) + && (phasedetectaf < EXN_PHASE_DETECT_AF_MAX) + ) + { + if ( (contrastdetectaf != 0) && (afareamode < EXN_AF_AREA_MODE_C_MAX) ) + { + /* Contrast AF (live view) */ + snprintf(buffer, maxsize, + "ContrastDetectAF: %s; AFAreaMode: %s\n", + EXN_NikonContrastDetectAF[contrastdetectaf], + EXN_NikonAFAreaModeContr[afareamode]); + + } + else if ( (phasedetectaf != 0) && (afareamode < EXN_AF_AREA_MODE_P_MAX) ) + { + /* Phase AF */ + buf[0] = '\0'; + exn_get_prim_af_pt(phasedetectaf, primaryafpoint, buf, EXIF_STD_BUF_LEN); + + snprintf(buffer, maxsize, + "PhaseDetectAF: %s; AreaMode: %s; PrimaryAFPoint: %s\n", + EXN_NikonPhaseDetectAF[phasedetectaf], + EXN_NikonAFAreaModePhase[afareamode], + buf + ); + } + + } +} + + + +/* get interesting nikon maker note tags in readable form */ +void exn_get_mnote_nikon_tags(ExifData *ed, unsigned int tag, char * buffer, unsigned int maxsize) +{ + char buf[EXIF_STD_BUF_LEN]; + + buf[0] = '\0'; + exif_get_tag(ed, EXIF_IFD_EXIF, EXIF_TAG_FLASH, buf, sizeof(buf)); + exif_trim_spaces(buf); + + switch(tag) + { + /* show only if flash was used */ + case 8: /* Flash Setting */ + case 9: /* Flash Mode */ + case 24: /* Flash exposure bracket value */ + case 135: /* Flash used */ + { + if ( !(strcmp("Flash: Flash did not fire\n", buf) == 0) ) + { + /* show extended flash info only if flash was fired */ + exif_get_mnote_tag(ed, tag, buffer, maxsize); + } + } + break; + + case 34: + { + /* ActiveD-Lighting */ + exn_get_mnote_nikon_34(ed, buffer, maxsize); + } + break; + + case 168: + { + /* Flash info: control mode */ + if ( !(strcmp("Flash: Flash did not fire\n", buf) == 0) ) + { + /* show extended flash info only if flash was fired */ + exn_get_mnote_nikon_168(ed, buffer, maxsize); + } + } + break; + + case 183: + { + /* AFInfo 2 */ + exn_get_mnote_nikon_183(ed, buffer, maxsize); + } + break; + + default: + { + /* normal makernote tags without special treatment */ + exif_get_mnote_tag(ed, tag, buffer, maxsize); + } + break; + } + + + return; +} + +#endif |