chasing indexing error

1 files changed, 0 insertions, 960 deletions

diff --git a/ffmpeg/libavcodec/mpegvideo.h b/ffmpeg/libavcodec/mpegvideo.h
deleted file mode 100644
index 6786ec1..0000000
--- a/ffmpeg/libavcodec/mpegvideo.h
+++ /dev/null
@@ -1,960 +0,0 @@
-/*
- * Generic DCT based hybrid video encoder
- * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
- * Copyright (c) 2002-2004 Michael Niedermayer
- *
- * 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
- */
-
-/**
- * @file
- * mpegvideo header.
- */
-
-#ifndef AVCODEC_MPEGVIDEO_H
-#define AVCODEC_MPEGVIDEO_H
-
-#include "avcodec.h"
-#include "dsputil.h"
-#include "error_resilience.h"
-#include "get_bits.h"
-#include "h264chroma.h"
-#include "h263dsp.h"
-#include "hpeldsp.h"
-#include "put_bits.h"
-#include "ratecontrol.h"
-#include "parser.h"
-#include "mpeg12data.h"
-#include "rl.h"
-#include "thread.h"
-#include "videodsp.h"
-
-#include "libavutil/opt.h"
-#include "libavutil/timecode.h"
-
-#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
-
-enum OutputFormat {
-    FMT_MPEG1,
-    FMT_H261,
-    FMT_H263,
-    FMT_MJPEG,
-};
-
-#define MPEG_BUF_SIZE (16 * 1024)
-
-#define QMAT_SHIFT_MMX 16
-#define QMAT_SHIFT 21
-
-#define MAX_FCODE 7
-#define MAX_MV 4096
-
-#define MAX_THREADS 32
-#define MAX_PICTURE_COUNT 36
-
-#define MAX_B_FRAMES 16
-
-#define ME_MAP_SIZE 64
-#define ME_MAP_SHIFT 3
-#define ME_MAP_MV_BITS 11
-
-#define MAX_MB_BYTES (30*16*16*3/8 + 120)
-
-#define INPLACE_OFFSET 16
-
-/* Start codes. */
-#define SEQ_END_CODE            0x000001b7
-#define SEQ_START_CODE          0x000001b3
-#define GOP_START_CODE          0x000001b8
-#define PICTURE_START_CODE      0x00000100
-#define SLICE_MIN_START_CODE    0x00000101
-#define SLICE_MAX_START_CODE    0x000001af
-#define EXT_START_CODE          0x000001b5
-#define USER_START_CODE         0x000001b2
-
-/**
- * Value of Picture.reference when Picture is not a reference picture, but
- * is held for delayed output.
- */
-#define DELAYED_PIC_REF 4
-
-struct MpegEncContext;
-
-/**
- * Picture.
- */
-typedef struct Picture{
-    struct AVFrame f;
-    ThreadFrame tf;
-
-    AVBufferRef *qscale_table_buf;
-    int8_t *qscale_table;
-
-    AVBufferRef *motion_val_buf[2];
-    int16_t (*motion_val[2])[2];
-
-    AVBufferRef *mb_type_buf;
-    uint32_t *mb_type;
-
-#if !FF_API_MB_TYPE
-#define MB_TYPE_INTRA4x4   0x0001
-#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
-#define MB_TYPE_INTRA_PCM  0x0004 //FIXME H.264-specific
-#define MB_TYPE_16x16      0x0008
-#define MB_TYPE_16x8       0x0010
-#define MB_TYPE_8x16       0x0020
-#define MB_TYPE_8x8        0x0040
-#define MB_TYPE_INTERLACED 0x0080
-#define MB_TYPE_DIRECT2    0x0100 //FIXME
-#define MB_TYPE_ACPRED     0x0200
-#define MB_TYPE_GMC        0x0400
-#define MB_TYPE_SKIP       0x0800
-#define MB_TYPE_P0L0       0x1000
-#define MB_TYPE_P1L0       0x2000
-#define MB_TYPE_P0L1       0x4000
-#define MB_TYPE_P1L1       0x8000
-#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      0x00010000
-#define MB_TYPE_CBP        0x00020000
-#endif
-
-    AVBufferRef *mbskip_table_buf;
-    uint8_t *mbskip_table;
-
-    AVBufferRef *ref_index_buf[2];
-    int8_t *ref_index[2];
-
-    AVBufferRef *mb_var_buf;
-    uint16_t *mb_var;           ///< Table for MB variances
-
-    AVBufferRef *mc_mb_var_buf;
-    uint16_t *mc_mb_var;        ///< Table for motion compensated MB variances
-
-    int alloc_mb_width;         ///< mb_width used to allocate tables
-    int alloc_mb_height;        ///< mb_height used to allocate tables
-
-    AVBufferRef *mb_mean_buf;
-    uint8_t *mb_mean;           ///< Table for MB luminance
-
-    AVBufferRef *hwaccel_priv_buf;
-    /**
-     * hardware accelerator private data
-     */
-    void *hwaccel_picture_private;
-
-#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))))
-#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note does not work if subMBs
-#define HAS_CBP(a)        ((a)&MB_TYPE_CBP)
-
-    int field_poc[2];           ///< h264 top/bottom POC
-    int poc;                    ///< h264 frame POC
-    int frame_num;              ///< h264 frame_num (raw frame_num from slice header)
-    int mmco_reset;             ///< h264 MMCO_RESET set this 1. Reordering code must not mix pictures before and after MMCO_RESET.
-    int pic_id;                 /**< h264 pic_num (short -> no wrap version of pic_num,
-                                     pic_num & max_pic_num; long -> long_pic_num) */
-    int long_ref;               ///< 1->long term reference 0->short term reference
-    int ref_poc[2][2][32];      ///< h264 POCs of the frames/fields used as reference (FIXME need per slice)
-    int ref_count[2][2];        ///< number of entries in ref_poc              (FIXME need per slice)
-    int mbaff;                  ///< h264 1 -> MBAFF frame 0-> not MBAFF
-    int field_picture;          ///< whether or not the picture was encoded in separate fields
-
-    int mb_var_sum;             ///< sum of MB variance for current frame
-    int mc_mb_var_sum;          ///< motion compensated MB variance for current frame
-
-    int b_frame_score;
-    int needs_realloc;          ///< Picture needs to be reallocated (eg due to a frame size change)
-
-    int reference;
-    int shared;
-    int recovered;              ///< Picture at IDR or recovery point + recovery count
-
-    int crop;
-    int crop_left;
-    int crop_top;
-} Picture;
-
-/**
- * Motion estimation context.
- */
-typedef struct MotionEstContext{
-    AVCodecContext *avctx;
-    int skip;                          ///< set if ME is skipped for the current MB
-    int co_located_mv[4][2];           ///< mv from last P-frame for direct mode ME
-    int direct_basis_mv[4][2];
-    uint8_t *scratchpad;               ///< data area for the ME algo, so that the ME does not need to malloc/free
-    uint8_t *best_mb;
-    uint8_t *temp_mb[2];
-    uint8_t *temp;
-    int best_bits;
-    uint32_t *map;                     ///< map to avoid duplicate evaluations
-    uint32_t *score_map;               ///< map to store the scores
-    unsigned map_generation;
-    int pre_penalty_factor;
-    int penalty_factor;                /**< an estimate of the bits required to
-                                        code a given mv value, e.g. (1,0) takes
-                                        more bits than (0,0). We have to
-                                        estimate whether any reduction in
-                                        residual is worth the extra bits. */
-    int sub_penalty_factor;
-    int mb_penalty_factor;
-    int flags;
-    int sub_flags;
-    int mb_flags;
-    int pre_pass;                      ///< = 1 for the pre pass
-    int dia_size;
-    int xmin;
-    int xmax;
-    int ymin;
-    int ymax;
-    int pred_x;
-    int pred_y;
-    uint8_t *src[4][4];
-    uint8_t *ref[4][4];
-    int stride;
-    int uvstride;
-    /* temp variables for picture complexity calculation */
-    int mc_mb_var_sum_temp;
-    int mb_var_sum_temp;
-    int scene_change_score;
-/*    cmp, chroma_cmp;*/
-    op_pixels_func (*hpel_put)[4];
-    op_pixels_func (*hpel_avg)[4];
-    qpel_mc_func (*qpel_put)[16];
-    qpel_mc_func (*qpel_avg)[16];
-    uint8_t (*mv_penalty)[MAX_MV*2+1];  ///< amount of bits needed to encode a MV
-    uint8_t *current_mv_penalty;
-    int (*sub_motion_search)(struct MpegEncContext * s,
-                                  int *mx_ptr, int *my_ptr, int dmin,
-                                  int src_index, int ref_index,
-                                  int size, int h);
-}MotionEstContext;
-
-/**
- * MpegEncContext.
- */
-typedef struct MpegEncContext {
-    AVClass *class;
-    struct AVCodecContext *avctx;
-    /* the following parameters must be initialized before encoding */
-    int width, height;///< picture size. must be a multiple of 16
-    int gop_size;
-    int intra_only;   ///< if true, only intra pictures are generated
-    int bit_rate;     ///< wanted bit rate
-    enum OutputFormat out_format; ///< output format
-    int h263_pred;    ///< use mpeg4/h263 ac/dc predictions
-    int pb_frame;     ///< PB frame mode (0 = none, 1 = base, 2 = improved)
-
-/* the following codec id fields are deprecated in favor of codec_id */
-    int h263_plus;    ///< h263 plus headers
-    int h263_flv;     ///< use flv h263 header
-
-    enum AVCodecID codec_id;     /* see AV_CODEC_ID_xxx */
-    int fixed_qscale; ///< fixed qscale if non zero
-    int encoding;     ///< true if we are encoding (vs decoding)
-    int flags;        ///< AVCodecContext.flags (HQ, MV4, ...)
-    int flags2;       ///< AVCodecContext.flags2
-    int max_b_frames; ///< max number of b-frames for encoding
-    int luma_elim_threshold;
-    int chroma_elim_threshold;
-    int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
-    int workaround_bugs;       ///< workaround bugs in encoders which cannot be detected automatically
-    int codec_tag;             ///< internal codec_tag upper case converted from avctx codec_tag
-    int stream_codec_tag;      ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag
-    /* the following fields are managed internally by the encoder */
-
-    /* sequence parameters */
-    int context_initialized;
-    int input_picture_number;  ///< used to set pic->display_picture_number, should not be used for/by anything else
-    int coded_picture_number;  ///< used to set pic->coded_picture_number, should not be used for/by anything else
-    int picture_number;       //FIXME remove, unclear definition
-    int picture_in_gop_number; ///< 0-> first pic in gop, ...
-    int mb_width, mb_height;   ///< number of MBs horizontally & vertically
-    int mb_stride;             ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
-    int b8_stride;             ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
-    int b4_stride;             ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
-    int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
-    int mb_num;                ///< number of MBs of a picture
-    ptrdiff_t linesize;        ///< line size, in bytes, may be different from width
-    ptrdiff_t uvlinesize;      ///< line size, for chroma in bytes, may be different from width
-    Picture *picture;          ///< main picture buffer
-    Picture **input_picture;   ///< next pictures on display order for encoding
-    Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
-
-    int y_dc_scale, c_dc_scale;
-    int ac_pred;
-    int block_last_index[12];  ///< last non zero coefficient in block
-    int h263_aic;              ///< Advanded INTRA Coding (AIC)
-
-    /* scantables */
-    ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
-    ScanTable intra_scantable;
-    ScanTable intra_h_scantable;
-    ScanTable intra_v_scantable;
-
-    /* WARNING: changes above this line require updates to hardcoded
-     *          offsets used in asm. */
-
-    int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
-    /**
-     * pts difference between the first and second input frame, used for
-     * calculating dts of the first frame when there's a delay */
-    int64_t dts_delta;
-    /**
-     * reordered pts to be used as dts for the next output frame when there's
-     * a delay */
-    int64_t reordered_pts;
-
-    /** bit output */
-    PutBitContext pb;
-
-    int start_mb_y;            ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
-    int end_mb_y;              ///< end   mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
-    struct MpegEncContext *thread_context[MAX_THREADS];
-    int slice_context_count;   ///< number of used thread_contexts
-
-    /**
-     * copy of the previous picture structure.
-     * note, linesize & data, might not match the previous picture (for field pictures)
-     */
-    Picture last_picture;
-
-    /**
-     * copy of the next picture structure.
-     * note, linesize & data, might not match the next picture (for field pictures)
-     */
-    Picture next_picture;
-
-    /**
-     * copy of the source picture structure for encoding.
-     * note, linesize & data, might not match the source picture (for field pictures)
-     */
-    Picture new_picture;
-
-    /**
-     * copy of the current picture structure.
-     * note, linesize & data, might not match the current picture (for field pictures)
-     */
-    Picture current_picture;    ///< buffer to store the decompressed current picture
-
-    Picture *last_picture_ptr;     ///< pointer to the previous picture.
-    Picture *next_picture_ptr;     ///< pointer to the next picture (for bidir pred)
-    Picture *current_picture_ptr;  ///< pointer to the current picture
-    int last_dc[3];                ///< last DC values for MPEG1
-    int16_t *dc_val_base;
-    int16_t *dc_val[3];            ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
-    const uint8_t *y_dc_scale_table;     ///< qscale -> y_dc_scale table
-    const uint8_t *c_dc_scale_table;     ///< qscale -> c_dc_scale table
-    const uint8_t *chroma_qscale_table;  ///< qscale -> chroma_qscale (h263)
-    uint8_t *coded_block_base;
-    uint8_t *coded_block;          ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
-    int16_t (*ac_val_base)[16];
-    int16_t (*ac_val[3])[16];      ///< used for mpeg4 AC prediction, all 3 arrays must be continuous
-    int mb_skipped;                ///< MUST BE SET only during DECODING
-    uint8_t *mbskip_table;        /**< used to avoid copy if macroblock skipped (for black regions for example)
-                                   and used for b-frame encoding & decoding (contains skip table of next P Frame) */
-    uint8_t *mbintra_table;       ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
-    uint8_t *cbp_table;           ///< used to store cbp, ac_pred for partitioned decoding
-    uint8_t *pred_dir_table;      ///< used to store pred_dir for partitioned decoding
-    uint8_t *edge_emu_buffer;     ///< temporary buffer for if MVs point to out-of-frame data
-    uint8_t *rd_scratchpad;       ///< scratchpad for rate distortion mb decision
-    uint8_t *obmc_scratchpad;
-    uint8_t *b_scratchpad;        ///< scratchpad used for writing into write only buffers
-
-    int qscale;                 ///< QP
-    int chroma_qscale;          ///< chroma QP
-    unsigned int lambda;        ///< lagrange multipler used in rate distortion
-    unsigned int lambda2;       ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
-    int *lambda_table;
-    int adaptive_quant;         ///< use adaptive quantization
-    int dquant;                 ///< qscale difference to prev qscale
-    int closed_gop;             ///< MPEG1/2 GOP is closed
-    int pict_type;              ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
-    int vbv_delay;
-    int last_pict_type; //FIXME removes
-    int last_non_b_pict_type;   ///< used for mpeg4 gmc b-frames & ratecontrol
-    int droppable;
-    int frame_rate_index;
-    AVRational mpeg2_frame_rate_ext;
-    int last_lambda_for[5];     ///< last lambda for a specific pict type
-    int skipdct;                ///< skip dct and code zero residual
-
-    /* motion compensation */
-    int unrestricted_mv;        ///< mv can point outside of the coded picture
-    int h263_long_vectors;      ///< use horrible h263v1 long vector mode
-
-    DSPContext dsp;             ///< pointers for accelerated dsp functions
-    H264ChromaContext h264chroma;
-    HpelDSPContext hdsp;
-    VideoDSPContext vdsp;
-    H263DSPContext h263dsp;
-    int f_code;                 ///< forward MV resolution
-    int b_code;                 ///< backward MV resolution for B Frames (mpeg4)
-    int16_t (*p_mv_table_base)[2];
-    int16_t (*b_forw_mv_table_base)[2];
-    int16_t (*b_back_mv_table_base)[2];
-    int16_t (*b_bidir_forw_mv_table_base)[2];
-    int16_t (*b_bidir_back_mv_table_base)[2];
-    int16_t (*b_direct_mv_table_base)[2];
-    int16_t (*p_field_mv_table_base[2][2])[2];
-    int16_t (*b_field_mv_table_base[2][2][2])[2];
-    int16_t (*p_mv_table)[2];            ///< MV table (1MV per MB) p-frame encoding
-    int16_t (*b_forw_mv_table)[2];       ///< MV table (1MV per MB) forward mode b-frame encoding
-    int16_t (*b_back_mv_table)[2];       ///< MV table (1MV per MB) backward mode b-frame encoding
-    int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
-    int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
-    int16_t (*b_direct_mv_table)[2];     ///< MV table (1MV per MB) direct mode b-frame encoding
-    int16_t (*p_field_mv_table[2][2])[2];   ///< MV table (2MV per MB) interlaced p-frame encoding
-    int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
-    uint8_t (*p_field_select_table[2]);
-    uint8_t (*b_field_select_table[2][2]);
-    int me_method;                       ///< ME algorithm
-    int mv_dir;
-#define MV_DIR_FORWARD   1
-#define MV_DIR_BACKWARD  2
-#define MV_DIRECT        4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
-    int mv_type;
-#define MV_TYPE_16X16       0   ///< 1 vector for the whole mb
-#define MV_TYPE_8X8         1   ///< 4 vectors (h263, mpeg4 4MV)
-#define MV_TYPE_16X8        2   ///< 2 vectors, one per 16x8 block
-#define MV_TYPE_FIELD       3   ///< 2 vectors, one per field
-#define MV_TYPE_DMV         4   ///< 2 vectors, special mpeg2 Dual Prime Vectors
-    /**motion vectors for a macroblock
-       first coordinate : 0 = forward 1 = backward
-       second "         : depend on type
-       third  "         : 0 = x, 1 = y
-    */
-    int mv[2][4][2];
-    int field_select[2][2];
-    int last_mv[2][2][2];             ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
-    uint8_t *fcode_tab;               ///< smallest fcode needed for each MV
-    int16_t direct_scale_mv[2][64];   ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
-
-    MotionEstContext me;
-
-    int no_rounding;  /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
-                        for b-frames rounding mode is always 0 */
-
-    /* macroblock layer */
-    int mb_x, mb_y;
-    int mb_skip_run;
-    int mb_intra;
-    uint16_t *mb_type;           ///< Table for candidate MB types for encoding
-#define CANDIDATE_MB_TYPE_INTRA    0x01
-#define CANDIDATE_MB_TYPE_INTER    0x02
-#define CANDIDATE_MB_TYPE_INTER4V  0x04
-#define CANDIDATE_MB_TYPE_SKIPPED   0x08
-//#define MB_TYPE_GMC      0x10
-
-#define CANDIDATE_MB_TYPE_DIRECT   0x10
-#define CANDIDATE_MB_TYPE_FORWARD  0x20
-#define CANDIDATE_MB_TYPE_BACKWARD 0x40
-#define CANDIDATE_MB_TYPE_BIDIR    0x80
-
-#define CANDIDATE_MB_TYPE_INTER_I    0x100
-#define CANDIDATE_MB_TYPE_FORWARD_I  0x200
-#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
-#define CANDIDATE_MB_TYPE_BIDIR_I    0x800
-
-#define CANDIDATE_MB_TYPE_DIRECT0    0x1000
-
-    int block_index[6]; ///< index to current MB in block based arrays with edges
-    int block_wrap[6];
-    uint8_t *dest[3];
-
-    int *mb_index2xy;        ///< mb_index -> mb_x + mb_y*mb_stride
-
-    /** matrix transmitted in the bitstream */
-    uint16_t intra_matrix[64];
-    uint16_t chroma_intra_matrix[64];
-    uint16_t inter_matrix[64];
-    uint16_t chroma_inter_matrix[64];
-#define QUANT_BIAS_SHIFT 8
-    int intra_quant_bias;    ///< bias for the quantizer
-    int inter_quant_bias;    ///< bias for the quantizer
-    int min_qcoeff;          ///< minimum encodable coefficient
-    int max_qcoeff;          ///< maximum encodable coefficient
-    int ac_esc_length;       ///< num of bits needed to encode the longest esc
-    uint8_t *intra_ac_vlc_length;
-    uint8_t *intra_ac_vlc_last_length;
-    uint8_t *inter_ac_vlc_length;
-    uint8_t *inter_ac_vlc_last_length;
-    uint8_t *luma_dc_vlc_length;
-#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
-
-    int coded_score[12];
-
-    /** precomputed matrix (combine qscale and DCT renorm) */
-    int (*q_intra_matrix)[64];
-    int (*q_chroma_intra_matrix)[64];
-    int (*q_inter_matrix)[64];
-    /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
-    uint16_t (*q_intra_matrix16)[2][64];
-    uint16_t (*q_chroma_intra_matrix16)[2][64];
-    uint16_t (*q_inter_matrix16)[2][64];
-
-    /* noise reduction */
-    int (*dct_error_sum)[64];
-    int dct_count[2];
-    uint16_t (*dct_offset)[64];
-
-    void *opaque;              ///< private data for the user
-
-    /* bit rate control */
-    int64_t total_bits;
-    int frame_bits;                ///< bits used for the current frame
-    int stuffing_bits;             ///< bits used for stuffing
-    int next_lambda;               ///< next lambda used for retrying to encode a frame
-    RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
-
-    /* statistics, used for 2-pass encoding */
-    int mv_bits;
-    int header_bits;
-    int i_tex_bits;
-    int p_tex_bits;
-    int i_count;
-    int f_count;
-    int b_count;
-    int skip_count;
-    int misc_bits; ///< cbp, mb_type
-    int last_bits; ///< temp var used for calculating the above vars
-
-    /* error concealment / resync */
-    int resync_mb_x;                 ///< x position of last resync marker
-    int resync_mb_y;                 ///< y position of last resync marker
-    GetBitContext last_resync_gb;    ///< used to search for the next resync marker
-    int mb_num_left;                 ///< number of MBs left in this video packet (for partitioned Slices only)
-    int next_p_frame_damaged;        ///< set if the next p frame is damaged, to avoid showing trashed b frames
-    int err_recognition;
-
-    ParseContext parse_context;
-
-    /* H.263 specific */
-    int gob_index;
-    int obmc;                       ///< overlapped block motion compensation
-    int mb_info;                    ///< interval for outputting info about mb offsets as side data
-    int prev_mb_info, last_mb_info;
-    uint8_t *mb_info_ptr;
-    int mb_info_size;
-    int ehc_mode;
-
-    /* H.263+ specific */
-    int umvplus;                    ///< == H263+ && unrestricted_mv
-    int h263_aic_dir;               ///< AIC direction: 0 = left, 1 = top
-    int h263_slice_structured;
-    int alt_inter_vlc;              ///< alternative inter vlc
-    int modified_quant;
-    int loop_filter;
-    int custom_pcf;
-
-    /* mpeg4 specific */
-    ///< number of bits to represent the fractional part of time (encoder only)
-    int time_increment_bits;
-    int last_time_base;
-    int time_base;                  ///< time in seconds of last I,P,S Frame
-    int64_t time;                   ///< time of current frame
-    int64_t last_non_b_time;
-    uint16_t pp_time;               ///< time distance between the last 2 p,s,i frames
-    uint16_t pb_time;               ///< time distance between the last b and p,s,i frame
-    uint16_t pp_field_time;
-    uint16_t pb_field_time;         ///< like above, just for interlaced
-    int real_sprite_warping_points;
-    int sprite_offset[2][2];         ///< sprite offset[isChroma][isMVY]
-    int sprite_delta[2][2];          ///< sprite_delta [isY][isMVY]
-    int mcsel;
-    int quant_precision;
-    int quarter_sample;              ///< 1->qpel, 0->half pel ME/MC
-    int aspect_ratio_info; //FIXME remove
-    int sprite_warping_accuracy;
-    int data_partitioning;           ///< data partitioning flag from header
-    int partitioned_frame;           ///< is current frame partitioned
-    int low_delay;                   ///< no reordering needed / has no b-frames
-    int vo_type;
-    int vol_control_parameters;      ///< does the stream contain the low_delay flag, used to workaround buggy encoders
-    PutBitContext tex_pb;            ///< used for data partitioned VOPs
-    PutBitContext pb2;               ///< used for data partitioned VOPs
-    int mpeg_quant;
-    int padding_bug_score;             ///< used to detect the VERY common padding bug in MPEG4
-
-    /* divx specific, used to workaround (many) bugs in divx5 */
-    int divx_packed;
-    uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
-    int bitstream_buffer_size;
-    unsigned int allocated_bitstream_buffer_size;
-
-    /* RV10 specific */
-    int rv10_version; ///< RV10 version: 0 or 3
-    int rv10_first_dc_coded[3];
-    int orig_width, orig_height;
-
-    /* MJPEG specific */
-    struct MJpegContext *mjpeg_ctx;
-    int esc_pos;
-
-    /* MSMPEG4 specific */
-    int mv_table_index;
-    int rl_table_index;
-    int rl_chroma_table_index;
-    int dc_table_index;
-    int use_skip_mb_code;
-    int slice_height;      ///< in macroblocks
-    int first_slice_line;  ///< used in mpeg4 too to handle resync markers
-    int flipflop_rounding;
-    int msmpeg4_version;   ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
-    int per_mb_rl_table;
-    int esc3_level_length;
-    int esc3_run_length;
-    /** [mb_intra][isChroma][level][run][last] */
-    int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
-    int inter_intra_pred;
-    int mspel;
-
-    /* decompression specific */
-    GetBitContext gb;
-
-    /* Mpeg1 specific */
-    int gop_picture_number;  ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
-    int last_mv_dir;         ///< last mv_dir, used for b frame encoding
-    uint8_t *vbv_delay_ptr;  ///< pointer to vbv_delay in the bitstream
-
-    /* MPEG-2-specific - I wished not to have to support this mess. */
-    int progressive_sequence;
-    int mpeg_f_code[2][2];
-    int picture_structure;
-/* picture type */
-#define PICT_TOP_FIELD     1
-#define PICT_BOTTOM_FIELD  2
-#define PICT_FRAME         3
-
-    int intra_dc_precision;
-    int frame_pred_frame_dct;
-    int top_field_first;
-    int concealment_motion_vectors;
-    int q_scale_type;
-    int intra_vlc_format;
-    int alternate_scan;
-    int repeat_first_field;
-    int chroma_420_type;
-    int chroma_format;
-#define CHROMA_420 1
-#define CHROMA_422 2
-#define CHROMA_444 3
-    int chroma_x_shift;//depend on pix_format, that depend on chroma_format
-    int chroma_y_shift;
-
-    int progressive_frame;
-    int full_pel[2];
-    int interlaced_dct;
-    int first_field;         ///< is 1 for the first field of a field picture 0 otherwise
-    int drop_frame_timecode; ///< timecode is in drop frame format.
-    int scan_offset;         ///< reserve space for SVCD scan offset user data.
-
-    /* RTP specific */
-    int rtp_mode;
-
-    char *tc_opt_str;        ///< timecode option string
-    AVTimecode tc;           ///< timecode context
-
-    uint8_t *ptr_lastgob;
-    int swap_uv;             //vcr2 codec is an MPEG-2 variant with U and V swapped
-    int pack_pblocks;        //xvmc needs to keep blocks without gaps.
-    int16_t (*pblocks[12])[64];
-
-    int16_t (*block)[64]; ///< points to one of the following blocks
-    int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
-    int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
-#define SLICE_OK         0
-#define SLICE_ERROR     -1
-#define SLICE_END       -2 ///<end marker found
-#define SLICE_NOEND     -3 ///<no end marker or error found but mb count exceeded
-
-    void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_h261_intra)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_h261_inter)(struct MpegEncContext *s,
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
-                           int16_t *block/*align 16*/, int n, int qscale);
-    void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
-                           int16_t *block/*align 16*/, int n, int qscale);
-    int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
-    int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
-    void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
-
-    int mpv_flags;      ///< flags set by private options
-    int quantizer_noise_shaping;
-
-    /* temp buffers for rate control */
-    float *cplx_tab, *bits_tab;
-
-    /* flag to indicate a reinitialization is required, e.g. after
-     * a frame size change */
-    int context_reinit;
-
-    ERContext er;
-
-    int error_rate;
-
-    /* temporary frames used by b_frame_strategy = 2 */
-    AVFrame *tmp_frames[MAX_B_FRAMES + 2];
-} MpegEncContext;
-
-#define REBASE_PICTURE(pic, new_ctx, old_ctx)             \
-    ((pic && pic >= old_ctx->picture &&                   \
-      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?  \
-        &new_ctx->picture[pic - old_ctx->picture] : NULL)
-
-/* mpegvideo_enc common options */
-#define FF_MPV_FLAG_SKIP_RD      0x0001
-#define FF_MPV_FLAG_STRICT_GOP   0x0002
-#define FF_MPV_FLAG_QP_RD        0x0004
-#define FF_MPV_FLAG_CBP_RD       0x0008
-
-#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
-#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
-#define FF_MPV_COMMON_OPTS \
-{ "mpv_flags",      "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
-{ "skip_rd",        "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
-{ "strict_gop",     "Strictly enforce gop size",             0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
-{ "qp_rd",          "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD },  0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
-{ "cbp_rd",         "use rate distortion optimization for CBP",          0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
-{ "luma_elim_threshold",   "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
-                                                                      FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
-{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
-                                                                      FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
-{ "quantizer_noise_shaping", NULL,                                  FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 },       0, INT_MAX, FF_MPV_OPT_FLAGS },\
-{ "error_rate", "Simulate errors in the bitstream to test error concealment.",                                                                                                  \
-                                                                    FF_MPV_OFFSET(error_rate),              AV_OPT_TYPE_INT, { .i64 = 0 },       0, INT_MAX, FF_MPV_OPT_FLAGS },
-
-extern const AVOption ff_mpv_generic_options[];
-
-#define FF_MPV_GENERIC_CLASS(name) \
-static const AVClass name ## _class = {\
-    .class_name = #name " encoder",\
-    .item_name  = av_default_item_name,\
-    .option     = ff_mpv_generic_options,\
-    .version    = LIBAVUTIL_VERSION_INT,\
-};
-
-/**
- * Set the given MpegEncContext to common defaults (same for encoding
- * and decoding).  The changed fields will not depend upon the prior
- * state of the MpegEncContext.
- */
-void ff_MPV_common_defaults(MpegEncContext *s);
-
-void ff_MPV_decode_defaults(MpegEncContext *s);
-int ff_MPV_common_init(MpegEncContext *s);
-int ff_MPV_common_frame_size_change(MpegEncContext *s);
-void ff_MPV_common_end(MpegEncContext *s);
-void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]);
-int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
-void ff_MPV_frame_end(MpegEncContext *s);
-int ff_MPV_encode_init(AVCodecContext *avctx);
-int ff_MPV_encode_end(AVCodecContext *avctx);
-int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
-                          AVFrame *frame, int *got_packet);
-void ff_dct_encode_init_x86(MpegEncContext *s);
-void ff_MPV_common_init_x86(MpegEncContext *s);
-void ff_MPV_common_init_axp(MpegEncContext *s);
-void ff_MPV_common_init_arm(MpegEncContext *s);
-void ff_MPV_common_init_bfin(MpegEncContext *s);
-void ff_MPV_common_init_ppc(MpegEncContext *s);
-void ff_clean_intra_table_entries(MpegEncContext *s);
-void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
-                        Picture *last, int y, int h, int picture_structure,
-                        int first_field, int draw_edges, int low_delay,
-                        int v_edge_pos, int h_edge_pos);
-void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
-void ff_mpeg_flush(AVCodecContext *avctx);
-
-void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict);
-void ff_print_debug_info2(AVCodecContext *avctx, Picture *p, AVFrame *pict, uint8_t *mbskip_table,
-                         int *low_delay,
-                         int mb_width, int mb_height, int mb_stride, int quarter_sample);
-
-int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
-
-void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
-int ff_find_unused_picture(MpegEncContext *s, int shared);
-void ff_denoise_dct(MpegEncContext *s, int16_t *block);
-int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
-int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir);
-void ff_MPV_report_decode_progress(MpegEncContext *s);
-int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
-void ff_set_qscale(MpegEncContext * s, int qscale);
-
-void ff_mpeg_er_frame_start(MpegEncContext *s);
-
-int ff_dct_common_init(MpegEncContext *s);
-int ff_dct_encode_init(MpegEncContext *s);
-void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
-                       const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
-int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
-
-void ff_init_block_index(MpegEncContext *s);
-
-void ff_MPV_motion(MpegEncContext *s,
-                   uint8_t *dest_y, uint8_t *dest_cb,
-                   uint8_t *dest_cr, int dir,
-                   uint8_t **ref_picture,
-                   op_pixels_func (*pix_op)[4],
-                   qpel_mc_func (*qpix_op)[16]);
-
-/**
- * Allocate a Picture.
- * The pixels are allocated/set by calling get_buffer() if shared = 0.
- */
-int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
-
-extern const enum AVPixelFormat ff_pixfmt_list_420[];
-
-/**
- * permute block according to permuatation.
- * @param last last non zero element in scantable order
- */
-void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last);
-
-static inline void ff_update_block_index(MpegEncContext *s){
-    const int block_size= 8 >> s->avctx->lowres;
-
-    s->block_index[0]+=2;
-    s->block_index[1]+=2;
-    s->block_index[2]+=2;
-    s->block_index[3]+=2;
-    s->block_index[4]++;
-    s->block_index[5]++;
-    s->dest[0]+= 2*block_size;
-    s->dest[1]+= block_size;
-    s->dest[2]+= block_size;
-}
-
-static inline int get_bits_diff(MpegEncContext *s){
-    const int bits= put_bits_count(&s->pb);
-    const int last= s->last_bits;
-
-    s->last_bits = bits;
-
-    return bits - last;
-}
-
-static inline int ff_h263_round_chroma(int x){
-    static const uint8_t h263_chroma_roundtab[16] = {
-    //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
-        0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
-    };
-    return h263_chroma_roundtab[x & 0xf] + (x >> 3);
-}
-
-/* motion_est.c */
-void ff_estimate_p_frame_motion(MpegEncContext * s,
-                             int mb_x, int mb_y);
-void ff_estimate_b_frame_motion(MpegEncContext * s,
-                             int mb_x, int mb_y);
-int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
-void ff_fix_long_p_mvs(MpegEncContext * s);
-void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
-                     int16_t (*mv_table)[2], int f_code, int type, int truncate);
-int ff_init_me(MpegEncContext *s);
-int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
-int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
-                             int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
-                             int ref_mv_scale, int size, int h);
-int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
-                               int ref_index, int size, int h, int add_rate);
-
-/* mpeg12.c */
-extern const uint8_t ff_mpeg1_dc_scale_table[128];
-extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
-
-void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
-void ff_mpeg1_encode_mb(MpegEncContext *s,
-                        int16_t block[6][64],
-                        int motion_x, int motion_y);
-void ff_mpeg1_encode_init(MpegEncContext *s);
-void ff_mpeg1_encode_slice_header(MpegEncContext *s);
-
-extern const uint8_t ff_aic_dc_scale_table[32];
-extern const uint8_t ff_h263_chroma_qscale_table[32];
-
-/* rv10.c */
-void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
-int ff_rv_decode_dc(MpegEncContext *s, int n);
-void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);
-
-
-/* msmpeg4.c */
-void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
-void ff_msmpeg4_encode_ext_header(MpegEncContext * s);
-void ff_msmpeg4_encode_mb(MpegEncContext * s,
-                          int16_t block[6][64],
-                          int motion_x, int motion_y);
-int ff_msmpeg4_decode_picture_header(MpegEncContext * s);
-int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
-int ff_msmpeg4_decode_init(AVCodecContext *avctx);
-void ff_msmpeg4_encode_init(MpegEncContext *s);
-int ff_wmv2_decode_picture_header(MpegEncContext * s);
-int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
-void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
-void ff_mspel_motion(MpegEncContext *s,
-                               uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
-                               uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
-                               int motion_x, int motion_y, int h);
-int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
-void ff_wmv2_encode_mb(MpegEncContext * s,
-                       int16_t block[6][64],
-                       int motion_x, int motion_y);
-
-int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src);
-void ff_mpeg_unref_picture(MpegEncContext *s, Picture *picture);
-void ff_free_picture_tables(Picture *pic);
-
-
-#endif /* AVCODEC_MPEGVIDEO_H */