| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Mpeg video formats-related defines and utility functions | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #ifndef AVCODEC_MPEGPICTURE_H | ||
| 22 | #define AVCODEC_MPEGPICTURE_H | ||
| 23 | |||
| 24 | #include <limits.h> | ||
| 25 | #include <stddef.h> | ||
| 26 | #include <stdint.h> | ||
| 27 | |||
| 28 | #include "avcodec.h" | ||
| 29 | #include "threadprogress.h" | ||
| 30 | |||
| 31 | #define MPV_MAX_PLANES 3 | ||
| 32 | #define EDGE_WIDTH 16 | ||
| 33 | |||
| 34 | typedef struct ScratchpadContext { | ||
| 35 | uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data | ||
| 36 | uint8_t *obmc_scratchpad; | ||
| 37 | union { | ||
| 38 | uint8_t *scratchpad_buf; ///< the other *_scratchpad point into this buffer | ||
| 39 | uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision | ||
| 40 | }; | ||
| 41 | int linesize; ///< linesize that the buffers in this context have been allocated for | ||
| 42 | } ScratchpadContext; | ||
| 43 | |||
| 44 | typedef struct BufferPoolContext { | ||
| 45 | struct FFRefStructPool *mbskip_table_pool; | ||
| 46 | struct FFRefStructPool *qscale_table_pool; | ||
| 47 | struct FFRefStructPool *mb_type_pool; | ||
| 48 | struct FFRefStructPool *motion_val_pool; | ||
| 49 | struct FFRefStructPool *ref_index_pool; | ||
| 50 | int alloc_mb_width; ///< mb_width used to allocate tables | ||
| 51 | int alloc_mb_height; ///< mb_height used to allocate tables | ||
| 52 | int alloc_mb_stride; ///< mb_stride used to allocate tables | ||
| 53 | } BufferPoolContext; | ||
| 54 | |||
| 55 | /** | ||
| 56 | * MPVPicture. | ||
| 57 | */ | ||
| 58 | typedef struct MPVPicture { | ||
| 59 | struct AVFrame *f; | ||
| 60 | |||
| 61 | int8_t *qscale_table_base; | ||
| 62 | int8_t *qscale_table; | ||
| 63 | |||
| 64 | int16_t (*motion_val_base[2])[2]; | ||
| 65 | int16_t (*motion_val[2])[2]; | ||
| 66 | |||
| 67 | uint32_t *mb_type_base; | ||
| 68 | uint32_t *mb_type; ///< types and macros are defined in mpegutils.h | ||
| 69 | |||
| 70 | uint8_t *mbskip_table; | ||
| 71 | |||
| 72 | int8_t *ref_index[2]; | ||
| 73 | |||
| 74 | /// RefStruct reference for hardware accelerator private data | ||
| 75 | void *hwaccel_picture_private; | ||
| 76 | |||
| 77 | int mb_width; ///< mb_width of the tables | ||
| 78 | int mb_height; ///< mb_height of the tables | ||
| 79 | int mb_stride; ///< mb_stride of the tables | ||
| 80 | |||
| 81 | int dummy; ///< Picture is a dummy and should not be output | ||
| 82 | int field_picture; ///< whether or not the picture was encoded in separate fields | ||
| 83 | |||
| 84 | int b_frame_score; | ||
| 85 | |||
| 86 | int reference; | ||
| 87 | int shared; | ||
| 88 | |||
| 89 | int display_picture_number; | ||
| 90 | int coded_picture_number; | ||
| 91 | |||
| 92 | ThreadProgress progress; | ||
| 93 | } MPVPicture; | ||
| 94 | |||
| 95 | typedef struct MPVWorkPicture { | ||
| 96 | uint8_t *data[MPV_MAX_PLANES]; | ||
| 97 | ptrdiff_t linesize[MPV_MAX_PLANES]; | ||
| 98 | |||
| 99 | MPVPicture *ptr; ///< RefStruct reference | ||
| 100 | |||
| 101 | int8_t *qscale_table; | ||
| 102 | |||
| 103 | int16_t (*motion_val[2])[2]; | ||
| 104 | |||
| 105 | uint32_t *mb_type; ///< types and macros are defined in mpegutils.h | ||
| 106 | |||
| 107 | uint8_t *mbskip_table; | ||
| 108 | |||
| 109 | int8_t *ref_index[2]; | ||
| 110 | |||
| 111 | int reference; | ||
| 112 | } MPVWorkPicture; | ||
| 113 | |||
| 114 | /** | ||
| 115 | * Allocate a pool of MPVPictures. | ||
| 116 | */ | ||
| 117 | struct FFRefStructPool *ff_mpv_alloc_pic_pool(int init_progress); | ||
| 118 | |||
| 119 | /** | ||
| 120 | * Allocate an MPVPicture's accessories (but not the AVFrame's buffer itself) | ||
| 121 | * and set the MPVWorkPicture's fields. | ||
| 122 | */ | ||
| 123 | int ff_mpv_alloc_pic_accessories(AVCodecContext *avctx, MPVWorkPicture *pic, | ||
| 124 | ScratchpadContext *sc, | ||
| 125 | BufferPoolContext *pools, int mb_height); | ||
| 126 | |||
| 127 | /** | ||
| 128 | * Check that the linesizes of an AVFrame are consistent with the requirements | ||
| 129 | * of mpegvideo. | ||
| 130 | * FIXME: There should be no need for this function. mpegvideo should be made | ||
| 131 | * to work with changing linesizes. | ||
| 132 | */ | ||
| 133 | int ff_mpv_pic_check_linesize(void *logctx, const struct AVFrame *f, | ||
| 134 | ptrdiff_t *linesizep, ptrdiff_t *uvlinesizep); | ||
| 135 | |||
| 136 | int ff_mpv_framesize_alloc(AVCodecContext *avctx, | ||
| 137 | ScratchpadContext *sc, int linesize); | ||
| 138 | |||
| 139 | /** | ||
| 140 | * Disable allocating the ScratchpadContext's buffers in future calls | ||
| 141 | * to ff_mpv_framesize_alloc(). | ||
| 142 | */ | ||
| 143 | 263 | static inline void ff_mpv_framesize_disable(ScratchpadContext *sc) | |
| 144 | { | ||
| 145 | 263 | sc->linesize = INT_MAX; | |
| 146 | 263 | } | |
| 147 | |||
| 148 | void ff_mpv_unref_picture(MPVWorkPicture *pic); | ||
| 149 | void ff_mpv_workpic_from_pic(MPVWorkPicture *wpic, MPVPicture *pic); | ||
| 150 | void ff_mpv_replace_picture(MPVWorkPicture *dst, const MPVWorkPicture *src); | ||
| 151 | |||
| 152 | #endif /* AVCODEC_MPEGPICTURE_H */ | ||
| 153 |