vp8cx,cosmetics: correct VP9_SET_TILE_COLUMNS docs

this has been set to max since:
f5c36a5ce VP9: turn on tile-columns and frame-parallel-mode by default
~v1.4.0

Change-Id: Ic796fc05abe73a58700ec50e3f8e72d3462898ec

diff --git a/vpx/vp8cx.h b/vpx/vp8cx.h
index 8fc114b8b9fd13636d2bf3042e999c2eaf3a4787..7acd7a071e881fad500d7e7d91aa74a6469240e4 100644 (file)
--- a/vpx/vp8cx.h
+++ b/vpx/vp8cx.h
@@ -333,11 +333,12 @@ enum vp8e_enc_control_id {
    *             2 = 4 tile columns
    *             .....
    *             n = 2**n tile columns
-   * The requested tile columns will be capped by encoder based on image size
-   * limitation (The minimum width of a tile column is 256 pixel, the maximum
-   * is 4096).
+   * The requested tile columns will be capped by the encoder based on image
+   * size limitations (The minimum width of a tile column is 256 pixels, the
+   * maximum is 4096).
    *
-   * By default, the value is 0, i.e. one single column tile for entire image.
+   * By default, the value is 6, i.e., the maximum number of tiles supported by
+   * the resolution.
    *
    * Supported in codecs: VP9
    */