mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 10:11:08 +00:00
c9b127dae3
Unlike other simple tiled formats, the Mediatek HW use different tile size per-plane. The tile size is scaled according to the subsampling. Effectively, using the name 16L32S to represent linearly layout tiles of size 16x32 bytes in the Y plane, and 16x16 in the UV plane. In order to make this specificity discoverable, a new SUBTILES flags have been added. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1567>
142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/* GStreamer
|
|
* Copyright (C) <2013> Wim Taymans <wim.taymans@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __GST_VIDEO_TILE_H__
|
|
#define __GST_VIDEO_TILE_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/video/video-prelude.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* GstVideoTileType:
|
|
* @GST_VIDEO_TILE_TYPE_INDEXED: Tiles are indexed. Use
|
|
* gst_video_tile_get_index () to retrieve the tile at the requested
|
|
* coordinates.
|
|
*
|
|
* Enum value describing the most common tiling types.
|
|
*/
|
|
typedef enum
|
|
{
|
|
GST_VIDEO_TILE_TYPE_INDEXED = 0
|
|
} GstVideoTileType;
|
|
|
|
#define GST_VIDEO_TILE_TYPE_SHIFT (16)
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_TYPE_MASK: (value 65535)
|
|
*/
|
|
#define GST_VIDEO_TILE_TYPE_MASK ((1 << GST_VIDEO_TILE_TYPE_SHIFT) - 1)
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_MAKE_MODE:
|
|
* @num: the mode number to create
|
|
* @type: the tile mode type
|
|
*
|
|
* use this macro to create new tile modes.
|
|
*/
|
|
#define GST_VIDEO_TILE_MAKE_MODE(num, type) \
|
|
(((num) << GST_VIDEO_TILE_TYPE_SHIFT) | (GST_VIDEO_TILE_TYPE_ ##type))
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_MODE_TYPE:
|
|
* @mode: the tile mode
|
|
*
|
|
* Get the tile mode type of @mode
|
|
*/
|
|
#define GST_VIDEO_TILE_MODE_TYPE(mode) ((mode) & GST_VIDEO_TILE_TYPE_MASK)
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_MODE_IS_INDEXED:
|
|
* @mode: a tile mode
|
|
*
|
|
* Check if @mode is an indexed tile type
|
|
*/
|
|
#define GST_VIDEO_TILE_MODE_IS_INDEXED(mode) (GST_VIDEO_TILE_MODE_TYPE(mode) == GST_VIDEO_TILE_TYPE_INDEXED)
|
|
|
|
|
|
#define GST_VIDEO_TILE_Y_TILES_SHIFT (16)
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_X_TILES_MASK: (value 65535)
|
|
*/
|
|
#define GST_VIDEO_TILE_X_TILES_MASK ((1 << GST_VIDEO_TILE_Y_TILES_SHIFT) - 1)
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_MAKE_STRIDE:
|
|
* @x_tiles: number of tiles in X
|
|
* @y_tiles: number of tiles in Y
|
|
*
|
|
* Encode the number of tile in X and Y into the stride.
|
|
*/
|
|
#define GST_VIDEO_TILE_MAKE_STRIDE(x_tiles, y_tiles) \
|
|
(((y_tiles) << GST_VIDEO_TILE_Y_TILES_SHIFT) | (x_tiles))
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_X_TILES:
|
|
* @stride: plane stride
|
|
*
|
|
* Extract the number of tiles in X from the stride value.
|
|
*/
|
|
#define GST_VIDEO_TILE_X_TILES(stride) ((stride) & GST_VIDEO_TILE_X_TILES_MASK)
|
|
|
|
/**
|
|
* GST_VIDEO_TILE_Y_TILES:
|
|
* @stride: plane stride
|
|
*
|
|
* Extract the number of tiles in Y from the stride value.
|
|
*/
|
|
#define GST_VIDEO_TILE_Y_TILES(stride) ((stride) >> GST_VIDEO_TILE_Y_TILES_SHIFT)
|
|
|
|
/**
|
|
* GstVideoTileMode:
|
|
* @GST_VIDEO_TILE_MODE_UNKNOWN: Unknown or unset tile mode
|
|
* @GST_VIDEO_TILE_MODE_ZFLIPZ_2X2: Every four adjacent blocks - two
|
|
* horizontally and two vertically are grouped together and are located
|
|
* in memory in Z or flipped Z order. In case of odd rows, the last row
|
|
* of blocks is arranged in linear order.
|
|
* @GST_VIDEO_TILE_MODE_LINEAR: Tiles are in row order. (Since: 1.18)
|
|
* @GST_VIDEO_TILE_MODE_LINEAR_SUBSAMPLED: Tiles are in row order, with
|
|
* variable tile size according to subsampling. (Since: 1.20)
|
|
*
|
|
* Enum value describing the available tiling modes.
|
|
*/
|
|
typedef enum
|
|
{
|
|
GST_VIDEO_TILE_MODE_UNKNOWN = 0,
|
|
GST_VIDEO_TILE_MODE_ZFLIPZ_2X2 = GST_VIDEO_TILE_MAKE_MODE (1, INDEXED),
|
|
/**
|
|
* GST_VIDEO_TILE_MODE_LINEAR:
|
|
*
|
|
* Tiles are in row order.
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
GST_VIDEO_TILE_MODE_LINEAR = GST_VIDEO_TILE_MAKE_MODE (2, INDEXED),
|
|
} GstVideoTileMode;
|
|
|
|
GST_VIDEO_API
|
|
guint gst_video_tile_get_index (GstVideoTileMode mode, gint x, gint y,
|
|
gint x_tiles, gint y_tiles);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_VIDEO_TILE_H__ */
|