diff --git a/pipi/codec/imlib.c b/pipi/codec/imlib.c
index 0288825..85343c8 100644
--- a/pipi/codec/imlib.c
+++ b/pipi/codec/imlib.c
@@ -43,6 +43,8 @@ pipi_image_t *pipi_load_imlib2(const char *name)
     img->p[PIPI_PIXELS_RGBA32].w = img->w;
     img->p[PIPI_PIXELS_RGBA32].h = img->h;
     img->p[PIPI_PIXELS_RGBA32].pitch = 4 * img->w;
+    img->p[PIPI_PIXELS_RGBA32].bpp = 32;
+    img->p[PIPI_PIXELS_RGBA32].bytes = 4 * img->w * img->h;
     img->last_modified = PIPI_PIXELS_RGBA32;
 
     img->codec_priv = (void *)priv;
@@ -79,6 +81,8 @@ void pipi_save_imlib2(pipi_image_t *img, const char *name)
         img->p[PIPI_PIXELS_RGBA32].w = imlib_image_get_width();
         img->p[PIPI_PIXELS_RGBA32].h = imlib_image_get_height();
         img->p[PIPI_PIXELS_RGBA32].pitch = 4 * imlib_image_get_width();
+        img->p[PIPI_PIXELS_RGBA32].bpp = 32;
+        img->p[PIPI_PIXELS_RGBA32].bytes = 4 * img->w * img->h;
 
         img->codec_priv = (void *)priv;
         img->codec_format = PIPI_PIXELS_RGBA32;
diff --git a/pipi/codec/opencv.c b/pipi/codec/opencv.c
index 7eac247..1086aaf 100644
--- a/pipi/codec/opencv.c
+++ b/pipi/codec/opencv.c
@@ -45,6 +45,8 @@ pipi_image_t *pipi_load_opencv(const char *name)
     img->p[PIPI_PIXELS_BGR24].w = priv->width;
     img->p[PIPI_PIXELS_BGR24].h = priv->height;
     img->p[PIPI_PIXELS_BGR24].pitch = priv->widthStep;
+    img->p[PIPI_PIXELS_BGR24].bpp = 24;
+    img->p[PIPI_PIXELS_BGR24].bytes = 3 * img->w * img->h;
     img->last_modified = PIPI_PIXELS_BGR24;
 
     img->codec_priv = (void *)priv;
@@ -79,6 +81,8 @@ void pipi_save_opencv(pipi_image_t *img, const char *name)
         img->p[PIPI_PIXELS_BGR24].w = priv->width;
         img->p[PIPI_PIXELS_BGR24].h = priv->height;
         img->p[PIPI_PIXELS_BGR24].pitch = priv->widthStep;
+        img->p[PIPI_PIXELS_BGR24].bpp = 24;
+        img->p[PIPI_PIXELS_BGR24].bytes = 3 * img->w * img->h;
 
         img->codec_priv = (void *)priv;
         img->codec_format = PIPI_PIXELS_BGR24;
diff --git a/pipi/codec/sdl.c b/pipi/codec/sdl.c
index 6cf97c3..906c87b 100644
--- a/pipi/codec/sdl.c
+++ b/pipi/codec/sdl.c
@@ -52,6 +52,8 @@ pipi_image_t *pipi_load_sdl(const char *name)
     img->p[PIPI_PIXELS_RGBA32].w = priv->w;
     img->p[PIPI_PIXELS_RGBA32].h = priv->h;
     img->p[PIPI_PIXELS_RGBA32].pitch = priv->pitch;
+    img->p[PIPI_PIXELS_RGBA32].bpp = 32;
+    img->p[PIPI_PIXELS_RGBA32].bytes = 4 * img->w * img->h;
     img->last_modified = PIPI_PIXELS_RGBA32;
 
     img->codec_priv = (void *)priv;
@@ -83,6 +85,8 @@ void pipi_save_sdl(pipi_image_t *img, const char *name)
         img->p[PIPI_PIXELS_RGBA32].w = priv->w;
         img->p[PIPI_PIXELS_RGBA32].h = priv->h;
         img->p[PIPI_PIXELS_RGBA32].pitch = priv->pitch;
+        img->p[PIPI_PIXELS_RGBA32].bpp = 32;
+        img->p[PIPI_PIXELS_RGBA32].bytes = 4 * img->w * img->h;
 
         img->codec_priv = (void *)priv;
         img->codec_format = PIPI_PIXELS_RGBA32;
diff --git a/pipi/pipi.h b/pipi/pipi.h
index d393ffc..708759e 100644
--- a/pipi/pipi.h
+++ b/pipi/pipi.h
@@ -19,6 +19,8 @@
 #ifndef __PIPI_H__
 #define __PIPI_H__
 
+#include <stdio.h>
+
 #ifdef __cplusplus
 extern "C"
 {
@@ -53,7 +55,8 @@ pipi_format_t;
 typedef struct
 {
     void *pixels;
-    int w, h, pitch;
+    int w, h, pitch, bpp;
+    size_t bytes;
 }
 pipi_pixels_t;
 
diff --git a/pipi/pixels.c b/pipi/pixels.c
index 702ead8..fb459de 100644
--- a/pipi/pixels.c
+++ b/pipi/pixels.c
@@ -40,7 +40,7 @@ static inline float u8tof32(uint8_t p) { return u8tof32_table[(int)p]; }
 pipi_pixels_t *pipi_getpixels(pipi_image_t *img, pipi_format_t type)
 {
     size_t bytes = 0;
-    int x, y, i;
+    int x, y, i, bpp = 0;
 
     if(type < 0 || type >= PIPI_PIXELS_MAX)
         return NULL;
@@ -69,21 +69,27 @@ pipi_pixels_t *pipi_getpixels(pipi_image_t *img, pipi_format_t type)
         {
         case PIPI_PIXELS_RGBA32:
             bytes = img->w * img->h * 4 * sizeof(uint8_t);
+            bpp = 4 * sizeof(uint8_t);
             break;
         case PIPI_PIXELS_BGR24:
             bytes = img->w * img->h * 3 * sizeof(uint8_t);
+            bpp = 3 * sizeof(uint8_t);
             break;
         case PIPI_PIXELS_RGBA_F:
             bytes = img->w * img->h * 4 * sizeof(float);
+            bpp = 4 * sizeof(float);
             break;
         case PIPI_PIXELS_Y_F:
             bytes = img->w * img->h * sizeof(float);
+            bpp = sizeof(float);
             break;
         default:
             return NULL;
         }
 
         img->p[type].pixels = malloc(bytes);
+        img->p[type].bytes = bytes;
+        img->p[type].bpp = bpp;
     }
 
     /* Convert pixels */