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-rw-r--r--media/ffvpx/libavcodec/mpegutils.h142
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diff --git a/media/ffvpx/libavcodec/mpegutils.h b/media/ffvpx/libavcodec/mpegutils.h
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+/*
+ * 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 */