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Diffstat (limited to 'media/ffvpx/libavcodec/mpegutils.h')
| -rw-r--r-- | media/ffvpx/libavcodec/mpegutils.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/mpegutils.h b/media/ffvpx/libavcodec/mpegutils.h new file mode 100644 index 000000000..9cfadfc4c --- /dev/null +++ b/media/ffvpx/libavcodec/mpegutils.h @@ -0,0 +1,142 @@ +/* + * 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" +#include "version.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 + +/** + * Value of Picture.reference when Picture is not a reference picture, but + * is held for delayed output. + */ +#define DELAYED_PIC_REF 4 + +#define MAX_MB_BYTES (30 * 16 * 16 * 3 / 8 + 120) +#define MAX_FCODE 7 + +/* MB types */ +#if !FF_API_MB_TYPE +#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) +#endif + +#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, +}; + + +/** + * 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, AVFrame *cur, AVFrame *last, + int y, int h, int picture_structure, int first_field, + int low_delay); + +#endif /* AVCODEC_MPEGUTILS_H */ |