From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- media/libvpx/vp9/common/vp9_scan.h | 57 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 media/libvpx/vp9/common/vp9_scan.h (limited to 'media/libvpx/vp9/common/vp9_scan.h') diff --git a/media/libvpx/vp9/common/vp9_scan.h b/media/libvpx/vp9/common/vp9_scan.h new file mode 100644 index 000000000..1d86b5cfe --- /dev/null +++ b/media/libvpx/vp9/common/vp9_scan.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2013 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef VP9_COMMON_VP9_SCAN_H_ +#define VP9_COMMON_VP9_SCAN_H_ + +#include "vpx/vpx_integer.h" +#include "vpx_ports/mem.h" + +#include "vp9/common/vp9_enums.h" +#include "vp9/common/vp9_blockd.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAX_NEIGHBORS 2 + +typedef struct { + const int16_t *scan; + const int16_t *iscan; + const int16_t *neighbors; +} scan_order; + +extern const scan_order vp9_default_scan_orders[TX_SIZES]; +extern const scan_order vp9_scan_orders[TX_SIZES][TX_TYPES]; + +static INLINE int get_coef_context(const int16_t *neighbors, + const uint8_t *token_cache, int c) { + return (1 + token_cache[neighbors[MAX_NEIGHBORS * c + 0]] + + token_cache[neighbors[MAX_NEIGHBORS * c + 1]]) >> 1; +} + +static INLINE const scan_order *get_scan(const MACROBLOCKD *xd, TX_SIZE tx_size, + PLANE_TYPE type, int block_idx) { + const MODE_INFO *const mi = xd->mi[0]; + + if (is_inter_block(&mi->mbmi) || type != PLANE_TYPE_Y || xd->lossless) { + return &vp9_default_scan_orders[tx_size]; + } else { + const PREDICTION_MODE mode = get_y_mode(mi, block_idx); + return &vp9_scan_orders[tx_size][intra_mode_to_tx_type_lookup[mode]]; + } +} + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // VP9_COMMON_VP9_SCAN_H_ -- cgit v1.2.3