repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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_MPEGUTILS_H | |
| 22 | #define AVCODEC_MPEGUTILS_H | |
| 23 | ||
| 24 | #include <stdint.h> | |
| 25 | ||
| 26 | #include "libavutil/frame.h" | |
| 27 | ||
| 28 | #include "avcodec.h" | |
| 29 | #include "version.h" | |
| 30 | ||
| 31 | ||
| 32 | /* picture type */ | |
| 33 | #define PICT_TOP_FIELD 1 | |
| 34 | #define PICT_BOTTOM_FIELD 2 | |
| 35 | #define PICT_FRAME 3 | |
| 36 | ||
| 37 | /** | |
| 38 | * Value of Picture.reference when Picture is not a reference picture, but | |
| 39 | * is held for delayed output. | |
| 40 | */ | |
| 41 | #define DELAYED_PIC_REF 4 | |
| 42 | ||
| 43 | ||
| 44 | /* MB types */ | |
| 45 | #if !FF_API_MB_TYPE | |
| 46 | #define MB_TYPE_INTRA4x4 (1 << 0) | |
| 47 | #define MB_TYPE_INTRA16x16 (1 << 1) // FIXME H.264-specific | |
| 48 | #define MB_TYPE_INTRA_PCM (1 << 2) // FIXME H.264-specific | |
| 49 | #define MB_TYPE_16x16 (1 << 3) | |
| 50 | #define MB_TYPE_16x8 (1 << 4) | |
| 51 | #define MB_TYPE_8x16 (1 << 5) | |
| 52 | #define MB_TYPE_8x8 (1 << 6) | |
| 53 | #define MB_TYPE_INTERLACED (1 << 7) | |
| 54 | #define MB_TYPE_DIRECT2 (1 << 8) // FIXME | |
| 55 | #define MB_TYPE_ACPRED (1 << 9) | |
| 56 | #define MB_TYPE_GMC (1 << 10) | |
| 57 | #define MB_TYPE_SKIP (1 << 11) | |
| 58 | #define MB_TYPE_P0L0 (1 << 12) | |
| 59 | #define MB_TYPE_P1L0 (1 << 13) | |
| 60 | #define MB_TYPE_P0L1 (1 << 14) | |
| 61 | #define MB_TYPE_P1L1 (1 << 15) | |
| 62 | #define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) | |
| 63 | #define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) | |
| 64 | #define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) | |
| 65 | #define MB_TYPE_QUANT (1 << 16) | |
| 66 | #define MB_TYPE_CBP (1 << 17) | |
| 67 | #endif | |
| 68 | ||
| 69 | #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 // default mb_type if there is just one type | |
| 70 | ||
| 71 | #define IS_INTRA4x4(a) ((a) & MB_TYPE_INTRA4x4) | |
| 72 | #define IS_INTRA16x16(a) ((a) & MB_TYPE_INTRA16x16) | |
| 73 | #define IS_PCM(a) ((a) & MB_TYPE_INTRA_PCM) | |
| 74 | #define IS_INTRA(a) ((a) & 7) | |
| 75 | #define IS_INTER(a) ((a) & (MB_TYPE_16x16 | MB_TYPE_16x8 | \ | |
| 76 | MB_TYPE_8x16 | MB_TYPE_8x8)) | |
| 77 | #define IS_SKIP(a) ((a) & MB_TYPE_SKIP) | |
| 78 | #define IS_INTRA_PCM(a) ((a) & MB_TYPE_INTRA_PCM) | |
| 79 | #define IS_INTERLACED(a) ((a) & MB_TYPE_INTERLACED) | |
| 80 | #define IS_DIRECT(a) ((a) & MB_TYPE_DIRECT2) | |
| 81 | #define IS_GMC(a) ((a) & MB_TYPE_GMC) | |
| 82 | #define IS_16X16(a) ((a) & MB_TYPE_16x16) | |
| 83 | #define IS_16X8(a) ((a) & MB_TYPE_16x8) | |
| 84 | #define IS_8X16(a) ((a) & MB_TYPE_8x16) | |
| 85 | #define IS_8X8(a) ((a) & MB_TYPE_8x8) | |
| 86 | #define IS_SUB_8X8(a) ((a) & MB_TYPE_16x16) // note reused | |
| 87 | #define IS_SUB_8X4(a) ((a) & MB_TYPE_16x8) // note reused | |
| 88 | #define IS_SUB_4X8(a) ((a) & MB_TYPE_8x16) // note reused | |
| 89 | #define IS_SUB_4X4(a) ((a) & MB_TYPE_8x8) // note reused | |
| 90 | #define IS_ACPRED(a) ((a) & MB_TYPE_ACPRED) | |
| 91 | #define IS_QUANT(a) ((a) & MB_TYPE_QUANT) | |
| 92 | #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list)))) | |
| 93 | ||
| 94 | // does this mb use listX, note does not work if subMBs | |
| 95 | #define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0 | MB_TYPE_P1L0) << (2 * (list)))) | |
| 96 | ||
| 97 | #define HAS_CBP(a) ((a) & MB_TYPE_CBP) | |
| 98 | ||
| 99 | /* MB types for encoding */ | |
| 100 | #define CANDIDATE_MB_TYPE_INTRA (1 << 0) | |
| 101 | #define CANDIDATE_MB_TYPE_INTER (1 << 1) | |
| 102 | #define CANDIDATE_MB_TYPE_INTER4V (1 << 2) | |
| 103 | #define CANDIDATE_MB_TYPE_SKIPPED (1 << 3) | |
| 104 | ||
| 105 | #define CANDIDATE_MB_TYPE_DIRECT (1 << 4) | |
| 106 | #define CANDIDATE_MB_TYPE_FORWARD (1 << 5) | |
| 107 | #define CANDIDATE_MB_TYPE_BACKWARD (1 << 6) | |
| 108 | #define CANDIDATE_MB_TYPE_BIDIR (1 << 7) | |
| 109 | ||
| 110 | #define CANDIDATE_MB_TYPE_INTER_I (1 << 8) | |
| 111 | #define CANDIDATE_MB_TYPE_FORWARD_I (1 << 9) | |
| 112 | #define CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10) | |
| 113 | #define CANDIDATE_MB_TYPE_BIDIR_I (1 << 11) | |
| 114 | ||
| 115 | #define CANDIDATE_MB_TYPE_DIRECT0 (1 << 12) | |
| 116 | ||
| 117 | ||
| 118 | /** | |
| 119 | * Draw a horizontal band if supported. | |
| 120 | * | |
| 121 | * @param h is the normal height, this will be reduced automatically if needed | |
| 122 | */ | |
| 123 | void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last, | |
| 124 | int y, int h, int picture_structure, int first_field, | |
| 125 | int low_delay); | |
| 126 | ||
| 127 | #endif /* AVCODEC_PICTTYPE_H */ |