| /* |
| * Mpeg video formats-related defines and utility functions |
| * |
| * 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_MPEGUTILS_H |
| #define AVCODEC_MPEGUTILS_H |
| |
| #include <stdint.h> |
| |
| #include "libavutil/frame.h" |
| |
| #include "avcodec.h" |
| |
| /** |
| * Return value for header parsers if frame is not coded. |
| * */ |
| #define FRAME_SKIPPED 100 |
| |
| /* picture type */ |
| #define PICT_TOP_FIELD 1 |
| #define PICT_BOTTOM_FIELD 2 |
| #define PICT_FRAME 3 |
| |
| #define MAX_MB_BYTES (30 * 16 * 16 * 3 / 8 + 120) |
| #define MAX_FCODE 7 |
| |
| /* MB types */ |
| #define MB_TYPE_INTRA4x4 (1 << 0) |
| #define MB_TYPE_INTRA16x16 (1 << 1) // FIXME H.264-specific |
| #define MB_TYPE_INTRA_PCM (1 << 2) // FIXME H.264-specific |
| #define MB_TYPE_16x16 (1 << 3) |
| #define MB_TYPE_16x8 (1 << 4) |
| #define MB_TYPE_8x16 (1 << 5) |
| #define MB_TYPE_8x8 (1 << 6) |
| #define MB_TYPE_INTERLACED (1 << 7) |
| #define MB_TYPE_DIRECT2 (1 << 8) // FIXME |
| #define MB_TYPE_ACPRED (1 << 9) |
| #define MB_TYPE_GMC (1 << 10) |
| #define MB_TYPE_SKIP (1 << 11) |
| #define MB_TYPE_P0L0 (1 << 12) |
| #define MB_TYPE_P1L0 (1 << 13) |
| #define MB_TYPE_P0L1 (1 << 14) |
| #define MB_TYPE_P1L1 (1 << 15) |
| #define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) |
| #define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) |
| #define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) |
| #define MB_TYPE_QUANT (1 << 16) |
| #define MB_TYPE_CBP (1 << 17) |
| |
| #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 // default mb_type if there is just one type |
| |
| #define IS_INTRA4x4(a) ((a) & MB_TYPE_INTRA4x4) |
| #define IS_INTRA16x16(a) ((a) & MB_TYPE_INTRA16x16) |
| #define IS_PCM(a) ((a) & MB_TYPE_INTRA_PCM) |
| #define IS_INTRA(a) ((a) & 7) |
| #define IS_INTER(a) ((a) & (MB_TYPE_16x16 | MB_TYPE_16x8 | \ |
| MB_TYPE_8x16 | MB_TYPE_8x8)) |
| #define IS_SKIP(a) ((a) & MB_TYPE_SKIP) |
| #define IS_INTRA_PCM(a) ((a) & MB_TYPE_INTRA_PCM) |
| #define IS_INTERLACED(a) ((a) & MB_TYPE_INTERLACED) |
| #define IS_DIRECT(a) ((a) & MB_TYPE_DIRECT2) |
| #define IS_GMC(a) ((a) & MB_TYPE_GMC) |
| #define IS_16X16(a) ((a) & MB_TYPE_16x16) |
| #define IS_16X8(a) ((a) & MB_TYPE_16x8) |
| #define IS_8X16(a) ((a) & MB_TYPE_8x16) |
| #define IS_8X8(a) ((a) & MB_TYPE_8x8) |
| #define IS_SUB_8X8(a) ((a) & MB_TYPE_16x16) // note reused |
| #define IS_SUB_8X4(a) ((a) & MB_TYPE_16x8) // note reused |
| #define IS_SUB_4X8(a) ((a) & MB_TYPE_8x16) // note reused |
| #define IS_SUB_4X4(a) ((a) & MB_TYPE_8x8) // note reused |
| #define IS_ACPRED(a) ((a) & MB_TYPE_ACPRED) |
| #define IS_QUANT(a) ((a) & MB_TYPE_QUANT) |
| #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list)))) |
| |
| // does this mb use listX, note does not work if subMBs |
| #define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0 | MB_TYPE_P1L0) << (2 * (list)))) |
| |
| #define HAS_CBP(a) ((a) & MB_TYPE_CBP) |
| |
| /* MB types for encoding */ |
| #define CANDIDATE_MB_TYPE_INTRA (1 << 0) |
| #define CANDIDATE_MB_TYPE_INTER (1 << 1) |
| #define CANDIDATE_MB_TYPE_INTER4V (1 << 2) |
| #define CANDIDATE_MB_TYPE_SKIPPED (1 << 3) |
| |
| #define CANDIDATE_MB_TYPE_DIRECT (1 << 4) |
| #define CANDIDATE_MB_TYPE_FORWARD (1 << 5) |
| #define CANDIDATE_MB_TYPE_BACKWARD (1 << 6) |
| #define CANDIDATE_MB_TYPE_BIDIR (1 << 7) |
| |
| #define CANDIDATE_MB_TYPE_INTER_I (1 << 8) |
| #define CANDIDATE_MB_TYPE_FORWARD_I (1 << 9) |
| #define CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10) |
| #define CANDIDATE_MB_TYPE_BIDIR_I (1 << 11) |
| |
| #define CANDIDATE_MB_TYPE_DIRECT0 (1 << 12) |
| |
| #define INPLACE_OFFSET 16 |
| |
| enum OutputFormat { |
| FMT_MPEG1, |
| FMT_H261, |
| FMT_H263, |
| FMT_MJPEG, |
| FMT_SPEEDHQ, |
| }; |
| |
| |
| /** |
| * Draw a horizontal band if supported. |
| * |
| * @param h is the normal height, this will be reduced automatically if needed |
| */ |
| void ff_draw_horiz_band(AVCodecContext *avctx, const AVFrame *cur, const AVFrame *last, |
| int y, int h, int picture_structure, int first_field, |
| int low_delay); |
| |
| /** |
| * Print debugging info for the given picture. |
| */ |
| void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, |
| const uint8_t *mbskip_table, const uint32_t *mbtype_table, |
| const int8_t *qscale_table, int16_t (*const motion_val[2])[2], |
| int mb_width, int mb_height, int mb_stride, int quarter_sample); |
| |
| #endif /* AVCODEC_MPEGUTILS_H */ |
