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113 lines
4.3 KiB
113 lines
4.3 KiB
/* |
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* Mpeg video formats-related defines and utility functions |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_MPEGUTILS_H |
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#define AVCODEC_MPEGUTILS_H |
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#include <stdint.h> |
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#include "libavutil/frame.h" |
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#include "avcodec.h" |
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/* picture type */ |
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#define PICT_TOP_FIELD 1 |
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#define PICT_BOTTOM_FIELD 2 |
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#define PICT_FRAME 3 |
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#define MAX_MB_BYTES (30 * 16 * 16 * 3 / 8 + 120) |
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#define MAX_FCODE 7 |
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/* MB types */ |
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#define MB_TYPE_INTRA4x4 (1 << 0) |
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#define MB_TYPE_INTRA16x16 (1 << 1) // FIXME H.264-specific |
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#define MB_TYPE_INTRA_PCM (1 << 2) // FIXME H.264-specific |
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#define MB_TYPE_16x16 (1 << 3) |
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#define MB_TYPE_16x8 (1 << 4) |
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#define MB_TYPE_8x16 (1 << 5) |
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#define MB_TYPE_8x8 (1 << 6) |
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#define MB_TYPE_INTERLACED (1 << 7) |
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#define MB_TYPE_DIRECT2 (1 << 8) // FIXME |
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#define MB_TYPE_CBP (1 << 10) |
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#define MB_TYPE_QUANT (1 << 11) |
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#define MB_TYPE_FORWARD_MV (1 << 12) |
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#define MB_TYPE_BACKWARD_MV (1 << 13) |
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#define MB_TYPE_BIDIR_MV (MB_TYPE_FORWARD_MV | MB_TYPE_BACKWARD_MV) |
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// MB_TYPE_P[01]L[01], MB_TYPE_L[01] and MB_TYPE_L0L1 are H.264 only. |
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#define MB_TYPE_P0L0 (1 << 12) |
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#define MB_TYPE_P1L0 (1 << 13) |
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#define MB_TYPE_P0L1 (1 << 14) |
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#define MB_TYPE_P1L1 (1 << 15) |
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#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) |
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#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) |
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#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) |
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#define MB_TYPE_GMC (1 << 16) |
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#define MB_TYPE_SKIP (1 << 17) |
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#define MB_TYPE_ACPRED (1 << 18) |
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#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 // default mb_type if there is just one type |
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// The following MB-type can be used by each codec as it sees fit. |
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#define MB_TYPE_CODEC_SPECIFIC (1 << 9) |
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#define IS_INTRA4x4(a) ((a) & MB_TYPE_INTRA4x4) |
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#define IS_INTRA16x16(a) ((a) & MB_TYPE_INTRA16x16) |
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#define IS_PCM(a) ((a) & MB_TYPE_INTRA_PCM) |
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#define IS_INTRA(a) ((a) & 7) |
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#define IS_INTER(a) ((a) & (MB_TYPE_16x16 | MB_TYPE_16x8 | \ |
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MB_TYPE_8x16 | MB_TYPE_8x8)) |
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#define IS_SKIP(a) ((a) & MB_TYPE_SKIP) |
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#define IS_INTRA_PCM(a) ((a) & MB_TYPE_INTRA_PCM) |
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#define IS_INTERLACED(a) ((a) & MB_TYPE_INTERLACED) |
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#define IS_DIRECT(a) ((a) & MB_TYPE_DIRECT2) |
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#define IS_GMC(a) ((a) & MB_TYPE_GMC) |
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#define IS_16X16(a) ((a) & MB_TYPE_16x16) |
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#define IS_16X8(a) ((a) & MB_TYPE_16x8) |
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#define IS_8X16(a) ((a) & MB_TYPE_8x16) |
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#define IS_8X8(a) ((a) & MB_TYPE_8x8) |
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#define IS_ACPRED(a) ((a) & MB_TYPE_ACPRED) |
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#define IS_QUANT(a) ((a) & MB_TYPE_QUANT) |
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#define HAS_CBP(a) ((a) & MB_TYPE_CBP) |
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#define HAS_FORWARD_MV(a) ((a) & MB_TYPE_FORWARD_MV) |
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#define HAS_BACKWARD_MV(a) ((a) & MB_TYPE_BACKWARD_MV) |
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// dir == 0 means forward, dir == 1 is backward |
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#define HAS_MV(a, dir) ((a) & (MB_TYPE_FORWARD_MV << (dir))) |
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#define MB_TYPE_MV_2_MV_DIR(a) (((a) >> 12) & (MV_DIR_FORWARD | MV_DIR_BACKWARD)) |
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/** |
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* Draw a horizontal band if supported. |
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* |
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* @param h is the normal height, this will be reduced automatically if needed |
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*/ |
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void ff_draw_horiz_band(AVCodecContext *avctx, const AVFrame *cur, const AVFrame *last, |
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int y, int h, int picture_structure, int first_field, |
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int low_delay); |
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/** |
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* Print debugging info for the given picture. |
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*/ |
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void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, |
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const uint32_t *mbtype_table, |
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const int8_t *qscale_table, int16_t (*const motion_val[2])[2], |
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int mb_width, int mb_height, int mb_stride, int quarter_sample); |
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#endif /* AVCODEC_MPEGUTILS_H */
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