Some more nikon exif features:

- ISO
- Whitebalance
- PictureControlData
- Flash output power

2 files changed, 121 insertions, 4 deletions

diff --git a/src/exif_cfg.h b/src/exif_cfg.h
index 31acc50..a3344bc 100644
--- a/src/exif_cfg.h
+++ b/src/exif_cfg.h
@@ -36,6 +36,7 @@ typedef struct
 
 
 /* show these standard tags. section must be given first, than the tag itself */
+/* definition: http://libexif.sourceforge.net/api/exif-tag_8h.html */
 const t_EXIF_INFO Exif_tag_list [] =
 {
   {EXIF_IFD_0, EXIF_TAG_MAKE},
@@ -67,15 +68,21 @@ const t_EXIF_INFO Exif_tag_list [] =
 /* show these nikon makernote tags */
 const unsigned int Exif_makernote_nikon_tag_list [] =
 {
+
+  6,
   8,   /* Flash Setting */
   9,   /* Flash Mode */
   24,  /* Flash exposure bracket value */
   135, /* Flash used */
   168, /* Flash info: control mode */
-  
+
+  2,   /* ISO. Has some more info than EXIF_TAG_ISO_SPEED_RATINGS but also fails on Lo.1 */  
+  5,   /* White Balance */
   132, /* Lens */
   171, /* Digital Vari-Program */
-  34,  /* ActiveD-Lighting */
+  34,  /* Active D-Lighting */
+
+  35,  /* PictureControlData */
   183, /* AFInfo2 */
 
   EXIF_NIKON_MAKERNOTE_END   /* end marker */
diff --git a/src/exif_nikon.c b/src/exif_nikon.c
index f4a8eea..21a2f08 100644
--- a/src/exif_nikon.c
+++ b/src/exif_nikon.c
@@ -95,11 +95,20 @@ char * EXN_Prim_AF_Pt_39[EXN_PRIM_AF_PT_39_MAX] = {"(none)", "C6 (Center)", "B6"
   "C3", "B3", "D3", "C2", "B2", "D2", "C1", "B1", "D1"};
 
 
+#define EXN_PIC_CTRL_ADJ_MAX 3
+char * EXN_Pic_Ctrl_Adj[EXN_PIC_CTRL_ADJ_MAX] = {"Default Settings", 
+                                                 "Quick Adjust",
+                                                 "Full Control"};
+
+
+
 static void exn_get_prim_af_pt(unsigned int phasedetectaf,
                                unsigned int primafpt,
                                char * buffer,
                                unsigned int maxsize);
+static void exn_get_flash_output(unsigned int flashoutput, 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_35(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);
 
@@ -164,6 +173,32 @@ static void exn_get_prim_af_pt(unsigned int phasedetectaf,
 
 
 
+/* get flash output power (for FlashInfo010x) */
+static void exn_get_flash_output(unsigned int flashoutput, char * buffer, unsigned int maxsize)
+{
+  
+  if ( flashoutput == 0 )
+  {
+    /* full power */
+    snprintf(buffer, maxsize, "Full");
+  }
+  else
+  {
+    if ( (flashoutput % 6) == 0 )
+    {
+      /* value is a power of 2 */
+      snprintf(buffer, maxsize, "1/%d", 1<<(flashoutput/6));
+    }
+    else
+    {
+      /* something uneven...ugly. maybe introduce pow() function from libm later */
+      snprintf(buffer, maxsize, "1/2^(%f)", ((float)flashoutput)/6.0);
+    }
+  }
+}
+
+
+
 /* get ActiveD-Lighting (34) info */
 static void exn_get_mnote_nikon_34(ExifData *ed, char * buffer, unsigned int maxsize)
 {
@@ -220,6 +255,63 @@ static void exn_get_mnote_nikon_34(ExifData *ed, char * buffer, unsigned int max
 
 
 
+/* get nikon PictureControlData (35) info */
+static void exn_get_mnote_nikon_35(ExifData *ed, char * buffer, unsigned int maxsize)
+{
+  char buf[EXIF_STD_BUF_LEN];
+  char picturecontrolname[EXIF_STD_BUF_LEN];
+  char picturecontrolbase[EXIF_STD_BUF_LEN];
+  unsigned int version = 0;
+  unsigned int length = 0;
+  unsigned int piccontroladj = 0;
+  unsigned int piccontrolquickadj = 0;
+  unsigned int sharpness = 0;
+  unsigned int contrast = 0;
+  unsigned int brightness = 0;
+  unsigned int saturation = 0;
+  unsigned int hueadjustment = 0;
+  unsigned int i, j;
+
+  /* libexif does not support PictureControlData 35 yet. so we have to parse the debug data :-( */
+  buf[0] = '\0';
+  exif_get_mnote_tag(ed, 35, buf, sizeof(buf));
+
+  sscanf(buf, "(null): %u bytes unknown data: 303130%02X%40s%40s%*8s%02X%02X%02X%02X%02X%02X%02X",
+         &length, &version, &picturecontrolname[0], &picturecontrolbase[0],
+         &piccontroladj, &piccontrolquickadj,
+         &sharpness, &contrast, &brightness, &saturation, &hueadjustment
+        );
+
+  /* printf("--%s %d-%d-\n", buf, version, piccontroladj); */
+  
+  for ( i=0; i<40; i++ )
+  {
+    sscanf(&picturecontrolname[2*i], "%2X", &j);
+    picturecontrolname[i] = j;
+    sscanf(&picturecontrolbase[2*i], "%2X", &j);
+    picturecontrolbase[i] = j;
+
+  }
+  exif_trim_spaces(picturecontrolname);
+  exif_trim_spaces(picturecontrolbase);
+
+  if ( ((length == 58) && (version == '0'))
+       && (piccontroladj < EXN_PIC_CTRL_ADJ_MAX)
+
+     )
+  {
+    snprintf(buffer, maxsize, 
+             "PictCtrlData: Name: %s; Base: %s; CtrlAdj: %s; Quick: %d; Shrp: %d; Contr: %d; Brght: %d; Sat: %d; Hue: %d\n",
+              picturecontrolname, picturecontrolbase,
+             EXN_Pic_Ctrl_Adj[piccontroladj], piccontrolquickadj,
+             sharpness, contrast, brightness, saturation, hueadjustment);
+  }
+
+}
+
+
+
+
 /* get nikon Flash info: control mode (168) info */
 static void exn_get_mnote_nikon_168(ExifData *ed, char * buffer, unsigned int maxsize)
 {
@@ -227,11 +319,13 @@ static void exn_get_mnote_nikon_168(ExifData *ed, char * buffer, unsigned int ma
   unsigned int version = 0;
   unsigned int length = 0;
   unsigned int exn_fcm = (EXN_FLASH_CONTROL_MODES_MAX-1); /* default to N/A */
+  unsigned int flashoutput = 0;
+  unsigned int externalflashflags = 0;
 
   /* 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);
+  sscanf(buf, "(null): %u bytes unknown data: 303130%02X%*8s%02X%02X%02X", &length, &version, &externalflashflags, &exn_fcm, &flashoutput);
   exn_fcm = exn_fcm & EXN_FLASH_CONTROL_MODE_MASK;
 
   if ( (exn_fcm < EXN_FLASH_CONTROL_MODES_MAX)
@@ -242,7 +336,16 @@ static void exn_get_mnote_nikon_168(ExifData *ed, char * buffer, unsigned int ma
           )
      )
   {
-    snprintf(buffer, maxsize, "NikonFlashControlMode: %s\n", EXN_NikonFlashControlModeValues[exn_fcm]);
+    
+    buf[0] = '\0';
+    exn_get_flash_output(flashoutput, buf, EXIF_STD_BUF_LEN);
+    snprintf(buffer, maxsize, "NikonFlashControlMode: %s (Power: %s)\n", EXN_NikonFlashControlModeValues[exn_fcm], buf);
+
+    /* External Flash Flags. Not as useful as expected. Not used (yet). */
+    /* if ( (externalflashflags & (1<<2)) ) -> Bounce Flash */
+    /* if ( (externalflashflags & (1<<4)) ) -> Wide Flash Adapter */
+    /* if ( (externalflashflags & (1<<5)) ) -> Dome Diffusor */
+
   }
 
 }
@@ -336,6 +439,13 @@ void exn_get_mnote_nikon_tags(ExifData *ed, unsigned int tag, char * buffer, uns
       exn_get_mnote_nikon_34(ed, buffer, maxsize);
     }
     break;
+
+    case 35:
+    {
+      /* PictureControlData */
+      exn_get_mnote_nikon_35(ed, buffer, maxsize);
+    }
+    break;
     
     case 168:
     {