Replace "depth" with "nb_bits" in the header of avcodec_pix_fmt_string().

Originally committed as revision 25791 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/imgconvert.c

@@ -438,12 +438,12 @@ void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
     /* print header */
     if (pix_fmt < 0)
         snprintf (buf, buf_size,
-                  "name      " " nb_components" " depth"
+                  "name      " " nb_components" " nb_bits"
             );
     else{
         const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
         snprintf (buf, buf_size,
-                  "%-11s %5d %7d",
+                  "%-11s %7d %10d",
                   pixdesc->name,
                   pixdesc->nb_components,
                   av_get_bits_per_pixel(pixdesc)