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-rw-r--r--media/ffvpx/libavcodec/vp9shared.h175
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+/*
+ * VP9 compatible video decoder
+ *
+ * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
+ * Copyright (C) 2013 Clément Bœsch <u pkh me>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VP9SHARED_H
+#define AVCODEC_VP9SHARED_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavutil/mem_internal.h"
+
+#include "vp9.h"
+#include "threadframe.h"
+
+enum BlockPartition {
+ PARTITION_NONE, // [ ] <-.
+ PARTITION_H, // [-] |
+ PARTITION_V, // [|] |
+ PARTITION_SPLIT, // [+] --'
+};
+
+enum InterPredMode {
+ NEARESTMV = 10,
+ NEARMV = 11,
+ ZEROMV = 12,
+ NEWMV = 13,
+};
+
+enum CompPredMode {
+ PRED_SINGLEREF,
+ PRED_COMPREF,
+ PRED_SWITCHABLE,
+};
+
+typedef struct VP9mv {
+ DECLARE_ALIGNED(4, int16_t, x);
+ int16_t y;
+} VP9mv;
+
+typedef struct VP9mvrefPair {
+ VP9mv mv[2];
+ int8_t ref[2];
+} VP9mvrefPair;
+
+typedef struct VP9Frame {
+ ThreadFrame tf;
+ AVBufferRef *extradata;
+ uint8_t *segmentation_map;
+ VP9mvrefPair *mv;
+ int uses_2pass;
+
+ AVBufferRef *hwaccel_priv_buf;
+ void *hwaccel_picture_private;
+} VP9Frame;
+
+enum BlockLevel {
+ BL_64X64,
+ BL_32X32,
+ BL_16X16,
+ BL_8X8,
+};
+
+enum BlockSize {
+ BS_64x64,
+ BS_64x32,
+ BS_32x64,
+ BS_32x32,
+ BS_32x16,
+ BS_16x32,
+ BS_16x16,
+ BS_16x8,
+ BS_8x16,
+ BS_8x8,
+ BS_8x4,
+ BS_4x8,
+ BS_4x4,
+ N_BS_SIZES,
+};
+
+typedef struct VP9BitstreamHeader {
+ // bitstream header
+ uint8_t profile;
+ uint8_t bpp;
+ uint8_t keyframe;
+ uint8_t invisible;
+ uint8_t errorres;
+ uint8_t intraonly;
+ uint8_t resetctx;
+ uint8_t refreshrefmask;
+ uint8_t highprecisionmvs;
+ enum FilterMode filtermode;
+ uint8_t allowcompinter;
+ uint8_t refreshctx;
+ uint8_t parallelmode;
+ uint8_t framectxid;
+ uint8_t use_last_frame_mvs;
+ uint8_t refidx[3];
+ uint8_t signbias[3];
+ uint8_t fixcompref;
+ uint8_t varcompref[2];
+ struct {
+ uint8_t level;
+ int8_t sharpness;
+ } filter;
+ struct {
+ uint8_t enabled;
+ uint8_t updated;
+ int8_t mode[2];
+ int8_t ref[4];
+ } lf_delta;
+ uint8_t yac_qi;
+ int8_t ydc_qdelta, uvdc_qdelta, uvac_qdelta;
+ uint8_t lossless;
+#define MAX_SEGMENT 8
+ struct {
+ uint8_t enabled;
+ uint8_t temporal;
+ uint8_t absolute_vals;
+ uint8_t update_map;
+ uint8_t prob[7];
+ uint8_t pred_prob[3];
+ struct {
+ uint8_t q_enabled;
+ uint8_t lf_enabled;
+ uint8_t ref_enabled;
+ uint8_t skip_enabled;
+ uint8_t ref_val;
+ int16_t q_val;
+ int8_t lf_val;
+ int16_t qmul[2][2];
+ uint8_t lflvl[4][2];
+ } feat[MAX_SEGMENT];
+ } segmentation;
+ enum TxfmMode txfmmode;
+ enum CompPredMode comppredmode;
+ struct {
+ unsigned log2_tile_cols, log2_tile_rows;
+ unsigned tile_cols, tile_rows;
+ } tiling;
+
+ int uncompressed_header_size;
+ int compressed_header_size;
+} VP9BitstreamHeader;
+
+typedef struct VP9SharedContext {
+ VP9BitstreamHeader h;
+
+ ThreadFrame refs[8];
+#define CUR_FRAME 0
+#define REF_FRAME_MVPAIR 1
+#define REF_FRAME_SEGMAP 2
+ VP9Frame frames[3];
+} VP9SharedContext;
+
+#endif /* AVCODEC_VP9SHARED_H */