h264: rename h264.[ch] to h264dec.[ch]

This is more consistent with the naming of other decoders.

1 files changed, 0 insertions, 938 deletions

diff --git a/libavcodec/h264.h b/libavcodec/h264.h
deleted file mode 100644
index 398a2837b8..0000000000
--- a/libavcodec/h264.h
+++ /dev/null
@@ -1,938 +0,0 @@
-/*
- * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * H.264 / AVC / MPEG-4 part10 codec.
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#ifndef AVCODEC_H264_H
-#define AVCODEC_H264_H
-
-#include "libavutil/buffer.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/thread.h"
-
-#include "cabac.h"
-#include "error_resilience.h"
-#include "h264_parse.h"
-#include "h264_sei.h"
-#include "h2645_parse.h"
-#include "h264chroma.h"
-#include "h264dsp.h"
-#include "h264pred.h"
-#include "h264qpel.h"
-#include "internal.h"
-#include "mpegutils.h"
-#include "parser.h"
-#include "qpeldsp.h"
-#include "rectangle.h"
-#include "videodsp.h"
-
-#define H264_MAX_PICTURE_COUNT 32
-
-#define MAX_SPS_COUNT          32
-#define MAX_PPS_COUNT         256
-
-#define MAX_MMCO_COUNT         66
-
-#define MAX_DELAYED_PIC_COUNT  16
-
-/* Compiling in interlaced support reduces the speed
- * of progressive decoding by about 2%. */
-#define ALLOW_INTERLACE
-
-#define FMO 0
-
-/**
- * The maximum number of slices supported by the decoder.
- * must be a power of 2
- */
-#define MAX_SLICES 32
-
-#ifdef ALLOW_INTERLACE
-#define MB_MBAFF(h)    h->mb_mbaff
-#define MB_FIELD(h)    h->mb_field_decoding_flag
-#define FRAME_MBAFF(h) h->mb_aff_frame
-#define FIELD_PICTURE(h) (h->picture_structure != PICT_FRAME)
-#define LEFT_MBS 2
-#define LTOP     0
-#define LBOT     1
-#define LEFT(i)  (i)
-#else
-#define MB_MBAFF(h)      0
-#define MB_FIELD(h)      0
-#define FRAME_MBAFF(h)   0
-#define FIELD_PICTURE(h) 0
-#undef  IS_INTERLACED
-#define IS_INTERLACED(mb_type) 0
-#define LEFT_MBS 1
-#define LTOP     0
-#define LBOT     0
-#define LEFT(i)  0
-#endif
-#define FIELD_OR_MBAFF_PICTURE(h) (FRAME_MBAFF(h) || FIELD_PICTURE(h))
-
-#ifndef CABAC
-#define CABAC(h) h->ps.pps->cabac
-#endif
-
-#define CHROMA422(h) (h->ps.sps->chroma_format_idc == 2)
-#define CHROMA444(h) (h->ps.sps->chroma_format_idc == 3)
-
-#define EXTENDED_SAR       255
-
-#define MB_TYPE_REF0       MB_TYPE_ACPRED // dirty but it fits in 16 bit
-#define MB_TYPE_8x8DCT     0x01000000
-#define IS_REF0(a)         ((a) & MB_TYPE_REF0)
-#define IS_8x8DCT(a)       ((a) & MB_TYPE_8x8DCT)
-
-#define QP_MAX_NUM (51 + 2 * 6)           // The maximum supported qp
-
-/* NAL unit types */
-enum {
-    NAL_SLICE           = 1,
-    NAL_DPA             = 2,
-    NAL_DPB             = 3,
-    NAL_DPC             = 4,
-    NAL_IDR_SLICE       = 5,
-    NAL_SEI             = 6,
-    NAL_SPS             = 7,
-    NAL_PPS             = 8,
-    NAL_AUD             = 9,
-    NAL_END_SEQUENCE    = 10,
-    NAL_END_STREAM      = 11,
-    NAL_FILLER_DATA     = 12,
-    NAL_SPS_EXT         = 13,
-    NAL_AUXILIARY_SLICE = 19,
-};
-
-/**
- * Sequence parameter set
- */
-typedef struct SPS {
-    unsigned int sps_id;
-    int profile_idc;
-    int level_idc;
-    int chroma_format_idc;
-    int transform_bypass;              ///< qpprime_y_zero_transform_bypass_flag
-    int log2_max_frame_num;            ///< log2_max_frame_num_minus4 + 4
-    int poc_type;                      ///< pic_order_cnt_type
-    int log2_max_poc_lsb;              ///< log2_max_pic_order_cnt_lsb_minus4
-    int delta_pic_order_always_zero_flag;
-    int offset_for_non_ref_pic;
-    int offset_for_top_to_bottom_field;
-    int poc_cycle_length;              ///< num_ref_frames_in_pic_order_cnt_cycle
-    int ref_frame_count;               ///< num_ref_frames
-    int gaps_in_frame_num_allowed_flag;
-    int mb_width;                      ///< pic_width_in_mbs_minus1 + 1
-    int mb_height;                     ///< pic_height_in_map_units_minus1 + 1
-    int frame_mbs_only_flag;
-    int mb_aff;                        ///< mb_adaptive_frame_field_flag
-    int direct_8x8_inference_flag;
-    int crop;                          ///< frame_cropping_flag
-
-    /* those 4 are already in luma samples */
-    unsigned int crop_left;            ///< frame_cropping_rect_left_offset
-    unsigned int crop_right;           ///< frame_cropping_rect_right_offset
-    unsigned int crop_top;             ///< frame_cropping_rect_top_offset
-    unsigned int crop_bottom;          ///< frame_cropping_rect_bottom_offset
-    int vui_parameters_present_flag;
-    AVRational sar;
-    int video_signal_type_present_flag;
-    int full_range;
-    int colour_description_present_flag;
-    enum AVColorPrimaries color_primaries;
-    enum AVColorTransferCharacteristic color_trc;
-    enum AVColorSpace colorspace;
-    int timing_info_present_flag;
-    uint32_t num_units_in_tick;
-    uint32_t time_scale;
-    int fixed_frame_rate_flag;
-    short offset_for_ref_frame[256]; // FIXME dyn aloc?
-    int bitstream_restriction_flag;
-    int num_reorder_frames;
-    int scaling_matrix_present;
-    uint8_t scaling_matrix4[6][16];
-    uint8_t scaling_matrix8[6][64];
-    int nal_hrd_parameters_present_flag;
-    int vcl_hrd_parameters_present_flag;
-    int pic_struct_present_flag;
-    int time_offset_length;
-    int cpb_cnt;                          ///< See H.264 E.1.2
-    int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 + 1
-    int cpb_removal_delay_length;         ///< cpb_removal_delay_length_minus1 + 1
-    int dpb_output_delay_length;          ///< dpb_output_delay_length_minus1 + 1
-    int bit_depth_luma;                   ///< bit_depth_luma_minus8 + 8
-    int bit_depth_chroma;                 ///< bit_depth_chroma_minus8 + 8
-    int residual_color_transform_flag;    ///< residual_colour_transform_flag
-    int constraint_set_flags;             ///< constraint_set[0-3]_flag
-} SPS;
-
-/**
- * Picture parameter set
- */
-typedef struct PPS {
-    unsigned int sps_id;
-    int cabac;                  ///< entropy_coding_mode_flag
-    int pic_order_present;      ///< pic_order_present_flag
-    int slice_group_count;      ///< num_slice_groups_minus1 + 1
-    int mb_slice_group_map_type;
-    unsigned int ref_count[2];  ///< num_ref_idx_l0/1_active_minus1 + 1
-    int weighted_pred;          ///< weighted_pred_flag
-    int weighted_bipred_idc;
-    int init_qp;                ///< pic_init_qp_minus26 + 26
-    int init_qs;                ///< pic_init_qs_minus26 + 26
-    int chroma_qp_index_offset[2];
-    int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
-    int constrained_intra_pred;     ///< constrained_intra_pred_flag
-    int redundant_pic_cnt_present;  ///< redundant_pic_cnt_present_flag
-    int transform_8x8_mode;         ///< transform_8x8_mode_flag
-    uint8_t scaling_matrix4[6][16];
-    uint8_t scaling_matrix8[6][64];
-    uint8_t chroma_qp_table[2][64]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
-    int chroma_qp_diff;
-
-    uint32_t dequant4_buffer[6][QP_MAX_NUM + 1][16];
-    uint32_t dequant8_buffer[6][QP_MAX_NUM + 1][64];
-    uint32_t(*dequant4_coeff[6])[16];
-    uint32_t(*dequant8_coeff[6])[64];
-} PPS;
-
-typedef struct H264ParamSets {
-    AVBufferRef *sps_list[MAX_SPS_COUNT];
-    AVBufferRef *pps_list[MAX_PPS_COUNT];
-
-    /* currently active parameters sets */
-    const PPS *pps;
-    // FIXME this should properly be const
-    SPS *sps;
-} H264ParamSets;
-
-/**
- * Memory management control operation opcode.
- */
-typedef enum MMCOOpcode {
-    MMCO_END = 0,
-    MMCO_SHORT2UNUSED,
-    MMCO_LONG2UNUSED,
-    MMCO_SHORT2LONG,
-    MMCO_SET_MAX_LONG,
-    MMCO_RESET,
-    MMCO_LONG,
-} MMCOOpcode;
-
-/**
- * Memory management control operation.
- */
-typedef struct MMCO {
-    MMCOOpcode opcode;
-    int short_pic_num;  ///< pic_num without wrapping (pic_num & max_pic_num)
-    int long_arg;       ///< index, pic_num, or num long refs depending on opcode
-} MMCO;
-
-typedef struct H264Picture {
-    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;
-
-    AVBufferRef *hwaccel_priv_buf;
-    void *hwaccel_picture_private; ///< hardware accelerator private data
-
-    AVBufferRef *ref_index_buf[2];
-    int8_t *ref_index[2];
-
-    int field_poc[2];       ///< top/bottom POC
-    int poc;                ///< frame POC
-    int frame_num;          ///< frame_num (raw frame_num from slice header)
-    int mmco_reset;         /**< MMCO_RESET set this 1. Reordering code must
-                                 not mix pictures before and after MMCO_RESET. */
-    int pic_id;             /**< 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];  ///< POCs of the frames used as reference (FIXME need per slice)
-    int ref_count[2][2];    ///< number of entries in ref_poc         (FIXME need per slice)
-    int mbaff;              ///< 1 -> MBAFF frame 0-> not MBAFF
-    int field_picture;      ///< whether or not picture was encoded in separate fields
-
-    int reference;
-    int recovered;          ///< picture at IDR or recovery point + recovery count
-} H264Picture;
-
-typedef struct H264Ref {
-    uint8_t *data[3];
-    int linesize[3];
-
-    int reference;
-    int poc;
-    int pic_id;
-
-    H264Picture *parent;
-} H264Ref;
-
-typedef struct H264SliceContext {
-    struct H264Context *h264;
-    GetBitContext gb;
-    ERContext er;
-
-    int slice_num;
-    int slice_type;
-    int slice_type_nos;         ///< S free slice type (SI/SP are remapped to I/P)
-    int slice_type_fixed;
-
-    int qscale;
-    int chroma_qp[2];   // QPc
-    int qp_thresh;      ///< QP threshold to skip loopfilter
-    int last_qscale_diff;
-
-    // deblock
-    int deblocking_filter;          ///< disable_deblocking_filter_idc with 1 <-> 0
-    int slice_alpha_c0_offset;
-    int slice_beta_offset;
-
-    H264PredWeightTable pwt;
-
-    int prev_mb_skipped;
-    int next_mb_skipped;
-
-    int chroma_pred_mode;
-    int intra16x16_pred_mode;
-
-    int8_t intra4x4_pred_mode_cache[5 * 8];
-    int8_t(*intra4x4_pred_mode);
-
-    int topleft_mb_xy;
-    int top_mb_xy;
-    int topright_mb_xy;
-    int left_mb_xy[LEFT_MBS];
-
-    int topleft_type;
-    int top_type;
-    int topright_type;
-    int left_type[LEFT_MBS];
-
-    const uint8_t *left_block;
-    int topleft_partition;
-
-    unsigned int topleft_samples_available;
-    unsigned int top_samples_available;
-    unsigned int topright_samples_available;
-    unsigned int left_samples_available;
-
-    ptrdiff_t linesize, uvlinesize;
-    ptrdiff_t mb_linesize;  ///< may be equal to s->linesize or s->linesize * 2, for mbaff
-    ptrdiff_t mb_uvlinesize;
-
-    int mb_x, mb_y;
-    int mb_xy;
-    int resync_mb_x;
-    int resync_mb_y;
-    unsigned int first_mb_addr;
-    // index of the first MB of the next slice
-    int next_slice_idx;
-    int mb_skip_run;
-    int is_complex;
-
-    int picture_structure;
-    int mb_field_decoding_flag;
-    int mb_mbaff;               ///< mb_aff_frame && mb_field_decoding_flag
-
-    int redundant_pic_count;
-
-    /**
-     * number of neighbors (top and/or left) that used 8x8 dct
-     */
-    int neighbor_transform_size;
-
-    int direct_spatial_mv_pred;
-    int col_parity;
-    int col_fieldoff;
-
-    int cbp;
-    int top_cbp;
-    int left_cbp;
-
-    int dist_scale_factor[32];
-    int dist_scale_factor_field[2][32];
-    int map_col_to_list0[2][16 + 32];
-    int map_col_to_list0_field[2][2][16 + 32];
-
-    /**
-     * num_ref_idx_l0/1_active_minus1 + 1
-     */
-    unsigned int ref_count[2];          ///< counts frames or fields, depending on current mb mode
-    unsigned int list_count;
-    H264Ref ref_list[2][48];        /**< 0..15: frame refs, 16..47: mbaff field refs.
-                                         *   Reordered version of default_ref_list
-                                         *   according to picture reordering in slice header */
-    struct {
-        uint8_t op;
-        uint8_t val;
-    } ref_modifications[2][32];
-    int nb_ref_modifications[2];
-
-    unsigned int pps_id;
-
-    const uint8_t *intra_pcm_ptr;
-    int16_t *dc_val_base;
-
-    uint8_t *bipred_scratchpad;
-    uint8_t *edge_emu_buffer;
-    uint8_t (*top_borders[2])[(16 * 3) * 2];
-    int bipred_scratchpad_allocated;
-    int edge_emu_buffer_allocated;
-    int top_borders_allocated[2];
-
-    /**
-     * non zero coeff count cache.
-     * is 64 if not available.
-     */
-    DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15 * 8];
-
-    /**
-     * Motion vector cache.
-     */
-    DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2];
-    DECLARE_ALIGNED(8,  int8_t, ref_cache)[2][5 * 8];
-    DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5 * 8][2];
-    uint8_t direct_cache[5 * 8];
-
-    DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4];
-
-    ///< as a DCT coefficient is int32_t in high depth, we need to reserve twice the space.
-    DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2];
-    DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2];
-    ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either
-    ///< check that i is not too large or ensure that there is some unused stuff after mb
-    int16_t mb_padding[256 * 2];
-
-    uint8_t (*mvd_table[2])[2];
-
-    /**
-     * Cabac
-     */
-    CABACContext cabac;
-    uint8_t cabac_state[1024];
-    int cabac_init_idc;
-
-    MMCO mmco[MAX_MMCO_COUNT];
-    int  nb_mmco;
-    int explicit_ref_marking;
-
-    int frame_num;
-    int poc_lsb;
-    int delta_poc_bottom;
-    int delta_poc[2];
-    int curr_pic_num;
-    int max_pic_num;
-} H264SliceContext;
-
-/**
- * H264Context
- */
-typedef struct H264Context {
-    const AVClass *class;
-    AVCodecContext *avctx;
-    VideoDSPContext vdsp;
-    H264DSPContext h264dsp;
-    H264ChromaContext h264chroma;
-    H264QpelContext h264qpel;
-
-    H264Picture DPB[H264_MAX_PICTURE_COUNT];
-    H264Picture *cur_pic_ptr;
-    H264Picture cur_pic;
-
-    H264SliceContext *slice_ctx;
-    int            nb_slice_ctx;
-
-    H2645Packet pkt;
-
-    int pixel_shift;    ///< 0 for 8-bit H.264, 1 for high-bit-depth H.264
-
-    /* coded dimensions -- 16 * mb w/h */
-    int width, height;
-    int chroma_x_shift, chroma_y_shift;
-
-    int droppable;
-    int coded_picture_number;
-
-    int context_initialized;
-    int flags;
-    int workaround_bugs;
-    /* Set when slice threading is used and at least one slice uses deblocking
-     * mode 1 (i.e. across slice boundaries). Then we disable the loop filter
-     * during normal MB decoding and execute it serially at the end.
-     */
-    int postpone_filter;
-
-    int8_t(*intra4x4_pred_mode);
-    H264PredContext hpc;
-
-    uint8_t (*non_zero_count)[48];
-
-#define LIST_NOT_USED -1 // FIXME rename?
-#define PART_NOT_AVAILABLE -2
-
-    /**
-     * block_offset[ 0..23] for frame macroblocks
-     * block_offset[24..47] for field macroblocks
-     */
-    int block_offset[2 * (16 * 3)];
-
-    uint32_t *mb2b_xy;  // FIXME are these 4 a good idea?
-    uint32_t *mb2br_xy;
-    int b_stride;       // FIXME use s->b4_stride
-
-    uint16_t *slice_table;      ///< slice_table_base + 2*mb_stride + 1
-
-    // interlacing specific flags
-    int mb_aff_frame;
-    int picture_structure;
-    int first_field;
-
-    uint8_t *list_counts;               ///< Array of list_count per MB specifying the slice type
-
-    /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0, 1, 2), 0x0? luma_cbp */
-    uint16_t *cbp_table;
-
-    /* chroma_pred_mode for i4x4 or i16x16, else 0 */
-    uint8_t *chroma_pred_mode_table;
-    uint8_t (*mvd_table[2])[2];
-    uint8_t *direct_table;
-
-    uint8_t zigzag_scan[16];
-    uint8_t zigzag_scan8x8[64];
-    uint8_t zigzag_scan8x8_cavlc[64];
-    uint8_t field_scan[16];
-    uint8_t field_scan8x8[64];
-    uint8_t field_scan8x8_cavlc[64];
-    const uint8_t *zigzag_scan_q0;
-    const uint8_t *zigzag_scan8x8_q0;
-    const uint8_t *zigzag_scan8x8_cavlc_q0;
-    const uint8_t *field_scan_q0;
-    const uint8_t *field_scan8x8_q0;
-    const uint8_t *field_scan8x8_cavlc_q0;
-
-    int mb_y;
-    int mb_height, mb_width;
-    int mb_stride;
-    int mb_num;
-
-    // =============================================================
-    // Things below are not used in the MB or more inner code
-
-    int nal_ref_idc;
-    int nal_unit_type;
-
-    /**
-     * Used to parse AVC variant of H.264
-     */
-    int is_avc;           ///< this flag is != 0 if codec is avc1
-    int nal_length_size;  ///< Number of bytes used for nal length (1, 2 or 4)
-
-    int bit_depth_luma;         ///< luma bit depth from sps to detect changes
-    int chroma_format_idc;      ///< chroma format from sps to detect changes
-
-    H264ParamSets ps;
-
-    uint16_t *slice_table_base;
-
-    H264POCContext poc;
-
-    H264Picture *short_ref[32];
-    H264Picture *long_ref[32];
-    H264Picture *delayed_pic[MAX_DELAYED_PIC_COUNT + 2]; // FIXME size?
-    int last_pocs[MAX_DELAYED_PIC_COUNT];
-    H264Picture *next_output_pic;
-    int next_outputed_poc;
-
-    /**
-     * memory management control operations buffer.
-     */
-    MMCO mmco[MAX_MMCO_COUNT];
-    int  nb_mmco;
-    int mmco_reset;
-    int explicit_ref_marking;
-
-    int long_ref_count;     ///< number of actual long term references
-    int short_ref_count;    ///< number of actual short term references
-
-    /**
-     * @name Members for slice based multithreading
-     * @{
-     */
-    /**
-     * current slice number, used to initialize slice_num of each thread/context
-     */
-    int current_slice;
-
-    /** @} */
-
-    /**
-     * Complement sei_pic_struct
-     * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
-     * However, soft telecined frames may have these values.
-     * This is used in an attempt to flag soft telecine progressive.
-     */
-    int prev_interlaced_frame;
-
-    /**
-     * recovery_frame is the frame_num at which the next frame should
-     * be fully constructed.
-     *
-     * Set to -1 when not expecting a recovery point.
-     */
-    int recovery_frame;
-
-/**
- * We have seen an IDR, so all the following frames in coded order are correctly
- * decodable.
- */
-#define FRAME_RECOVERED_IDR  (1 << 0)
-/**
- * Sufficient number of frames have been decoded since a SEI recovery point,
- * so all the following frames in presentation order are correct.
- */
-#define FRAME_RECOVERED_SEI  (1 << 1)
-
-    int frame_recovered;    ///< Initial frame has been completely recovered
-
-    /* for frame threading, this is set to 1
-     * after finish_setup() has been called, so we cannot modify
-     * some context properties (which are supposed to stay constant between
-     * slices) anymore */
-    int setup_finished;
-
-    int enable_er;
-
-    H264SEIContext sei;
-
-    AVBufferPool *qscale_table_pool;
-    AVBufferPool *mb_type_pool;
-    AVBufferPool *motion_val_pool;
-    AVBufferPool *ref_index_pool;
-    int ref2frm[MAX_SLICES][2][64];     ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
-} H264Context;
-
-extern const uint16_t ff_h264_mb_sizes[4];
-
-/**
- * Decode SPS
- */
-int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx,
-                                     H264ParamSets *ps);
-
-/**
- * Decode PPS
- */
-int ff_h264_decode_picture_parameter_set(GetBitContext *gb, AVCodecContext *avctx,
-                                         H264ParamSets *ps, int bit_length);
-
-/**
- * Reconstruct bitstream slice_type.
- */
-int ff_h264_get_slice_type(const H264SliceContext *sl);
-
-/**
- * Allocate tables.
- * needs width/height
- */
-int ff_h264_alloc_tables(H264Context *h);
-
-int ff_h264_decode_ref_pic_list_reordering(const H264Context *h, H264SliceContext *sl);
-int ff_h264_build_ref_list(const H264Context *h, H264SliceContext *sl);
-void ff_h264_remove_all_refs(H264Context *h);
-
-/**
- * Execute the reference picture marking (memory management control operations).
- */
-int ff_h264_execute_ref_pic_marking(H264Context *h);
-
-int ff_h264_decode_ref_pic_marking(const H264Context *h, H264SliceContext *sl,
-                                   GetBitContext *gb);
-
-void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl);
-int ff_h264_decode_init(AVCodecContext *avctx);
-void ff_h264_decode_init_vlc(void);
-
-/**
- * Decode a macroblock
- * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
- */
-int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl);
-
-/**
- * Decode a CABAC coded macroblock
- * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
- */
-int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl);
-
-void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl);
-
-void ff_h264_init_dequant_tables(H264Context *h);
-
-void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl);
-void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl);
-void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl,
-                                int *mb_type);
-
-void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
-                            uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
-                            unsigned int linesize, unsigned int uvlinesize);
-void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
-                       uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
-                       unsigned int linesize, unsigned int uvlinesize);
-
-/*
- * o-o o-o
- *  / / /
- * o-o o-o
- *  ,---'
- * o-o o-o
- *  / / /
- * o-o o-o
- */
-
-/* Scan8 organization:
- *    0 1 2 3 4 5 6 7
- * 0  DY    y y y y y
- * 1        y Y Y Y Y
- * 2        y Y Y Y Y
- * 3        y Y Y Y Y
- * 4        y Y Y Y Y
- * 5  DU    u u u u u
- * 6        u U U U U
- * 7        u U U U U
- * 8        u U U U U
- * 9        u U U U U
- * 10 DV    v v v v v
- * 11       v V V V V
- * 12       v V V V V
- * 13       v V V V V
- * 14       v V V V V
- * DY/DU/DV are for luma/chroma DC.
- */
-
-#define LUMA_DC_BLOCK_INDEX   48
-#define CHROMA_DC_BLOCK_INDEX 49
-
-// This table must be here because scan8[constant] must be known at compiletime
-static const uint8_t scan8[16 * 3 + 3] = {
-    4 +  1 * 8, 5 +  1 * 8, 4 +  2 * 8, 5 +  2 * 8,
-    6 +  1 * 8, 7 +  1 * 8, 6 +  2 * 8, 7 +  2 * 8,
-    4 +  3 * 8, 5 +  3 * 8, 4 +  4 * 8, 5 +  4 * 8,
-    6 +  3 * 8, 7 +  3 * 8, 6 +  4 * 8, 7 +  4 * 8,
-    4 +  6 * 8, 5 +  6 * 8, 4 +  7 * 8, 5 +  7 * 8,
-    6 +  6 * 8, 7 +  6 * 8, 6 +  7 * 8, 7 +  7 * 8,
-    4 +  8 * 8, 5 +  8 * 8, 4 +  9 * 8, 5 +  9 * 8,
-    6 +  8 * 8, 7 +  8 * 8, 6 +  9 * 8, 7 +  9 * 8,
-    4 + 11 * 8, 5 + 11 * 8, 4 + 12 * 8, 5 + 12 * 8,
-    6 + 11 * 8, 7 + 11 * 8, 6 + 12 * 8, 7 + 12 * 8,
-    4 + 13 * 8, 5 + 13 * 8, 4 + 14 * 8, 5 + 14 * 8,
-    6 + 13 * 8, 7 + 13 * 8, 6 + 14 * 8, 7 + 14 * 8,
-    0 +  0 * 8, 0 +  5 * 8, 0 + 10 * 8
-};
-
-static av_always_inline uint32_t pack16to32(int a, int b)
-{
-#if HAVE_BIGENDIAN
-    return (b & 0xFFFF) + (a << 16);
-#else
-    return (a & 0xFFFF) + (b << 16);
-#endif
-}
-
-static av_always_inline uint16_t pack8to16(int a, int b)
-{
-#if HAVE_BIGENDIAN
-    return (b & 0xFF) + (a << 8);
-#else
-    return (a & 0xFF) + (b << 8);
-#endif
-}
-
-/**
- * Get the chroma qp.
- */
-static av_always_inline int get_chroma_qp(const PPS *pps, int t, int qscale)
-{
-    return pps->chroma_qp_table[t][qscale];
-}
-
-/**
- * Get the predicted intra4x4 prediction mode.
- */
-static av_always_inline int pred_intra_mode(const H264Context *h,
-                                            H264SliceContext *sl, int n)
-{
-    const int index8 = scan8[n];
-    const int left   = sl->intra4x4_pred_mode_cache[index8 - 1];
-    const int top    = sl->intra4x4_pred_mode_cache[index8 - 8];
-    const int min    = FFMIN(left, top);
-
-    ff_tlog(h->avctx, "mode:%d %d min:%d\n", left, top, min);
-
-    if (min < 0)
-        return DC_PRED;
-    else
-        return min;
-}
-
-static av_always_inline void write_back_intra_pred_mode(const H264Context *h,
-                                                        H264SliceContext *sl)
-{
-    int8_t *i4x4       = sl->intra4x4_pred_mode + h->mb2br_xy[sl->mb_xy];
-    int8_t *i4x4_cache = sl->intra4x4_pred_mode_cache;
-
-    AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4);
-    i4x4[4] = i4x4_cache[7 + 8 * 3];
-    i4x4[5] = i4x4_cache[7 + 8 * 2];
-    i4x4[6] = i4x4_cache[7 + 8 * 1];
-}
-
-static av_always_inline void write_back_non_zero_count(const H264Context *h,
-                                                       H264SliceContext *sl)
-{
-    const int mb_xy    = sl->mb_xy;
-    uint8_t *nnz       = h->non_zero_count[mb_xy];
-    uint8_t *nnz_cache = sl->non_zero_count_cache;
-
-    AV_COPY32(&nnz[ 0], &nnz_cache[4 + 8 * 1]);
-    AV_COPY32(&nnz[ 4], &nnz_cache[4 + 8 * 2]);
-    AV_COPY32(&nnz[ 8], &nnz_cache[4 + 8 * 3]);
-    AV_COPY32(&nnz[12], &nnz_cache[4 + 8 * 4]);
-    AV_COPY32(&nnz[16], &nnz_cache[4 + 8 * 6]);
-    AV_COPY32(&nnz[20], &nnz_cache[4 + 8 * 7]);
-    AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]);
-    AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]);
-
-    if (!h->chroma_y_shift) {
-        AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]);
-        AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]);
-        AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]);
-        AV_COPY32(&nnz[44], &nnz_cache[4 + 8 * 14]);
-    }
-}
-
-static av_always_inline void write_back_motion_list(const H264Context *h,
-                                                    H264SliceContext *sl,
-                                                    int b_stride,
-                                                    int b_xy, int b8_xy,
-                                                    int mb_type, int list)
-{
-    int16_t(*mv_dst)[2] = &h->cur_pic.motion_val[list][b_xy];
-    int16_t(*mv_src)[2] = &sl->mv_cache[list][scan8[0]];
-    AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0);
-    AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1);
-    AV_COPY128(mv_dst + 2 * b_stride, mv_src + 8 * 2);
-    AV_COPY128(mv_dst + 3 * b_stride, mv_src + 8 * 3);
-    if (CABAC(h)) {
-        uint8_t (*mvd_dst)[2] = &sl->mvd_table[list][FMO ? 8 * sl->mb_xy
-                                                        : h->mb2br_xy[sl->mb_xy]];
-        uint8_t(*mvd_src)[2]  = &sl->mvd_cache[list][scan8[0]];
-        if (IS_SKIP(mb_type)) {
-            AV_ZERO128(mvd_dst);
-        } else {
-            AV_COPY64(mvd_dst, mvd_src + 8 * 3);
-            AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8 * 0);
-            AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8 * 1);
-            AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8 * 2);
-        }
-    }
-
-    {
-        int8_t *ref_index = &h->cur_pic.ref_index[list][b8_xy];
-        int8_t *ref_cache = sl->ref_cache[list];
-        ref_index[0 + 0 * 2] = ref_cache[scan8[0]];
-        ref_index[1 + 0 * 2] = ref_cache[scan8[4]];
-        ref_index[0 + 1 * 2] = ref_cache[scan8[8]];
-        ref_index[1 + 1 * 2] = ref_cache[scan8[12]];
-    }
-}
-
-static av_always_inline void write_back_motion(const H264Context *h,
-                                               H264SliceContext *sl,
-                                               int mb_type)
-{
-    const int b_stride      = h->b_stride;
-    const int b_xy  = 4 * sl->mb_x + 4 * sl->mb_y * h->b_stride; // try mb2b(8)_xy
-    const int b8_xy = 4 * sl->mb_xy;
-
-    if (USES_LIST(mb_type, 0)) {
-        write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 0);
-    } else {
-        fill_rectangle(&h->cur_pic.ref_index[0][b8_xy],
-                       2, 2, 2, (uint8_t)LIST_NOT_USED, 1);
-    }
-    if (USES_LIST(mb_type, 1))
-        write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 1);
-
-    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && CABAC(h)) {
-        if (IS_8X8(mb_type)) {
-            uint8_t *direct_table = &h->direct_table[4 * sl->mb_xy];
-            direct_table[1] = sl->sub_mb_type[1] >> 1;
-            direct_table[2] = sl->sub_mb_type[2] >> 1;
-            direct_table[3] = sl->sub_mb_type[3] >> 1;
-        }
-    }
-}
-
-static av_always_inline int get_dct8x8_allowed(const H264Context *h, H264SliceContext *sl)
-{
-    if (h->ps.sps->direct_8x8_inference_flag)
-        return !(AV_RN64A(sl->sub_mb_type) &
-                 ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8) *
-                  0x0001000100010001ULL));
-    else
-        return !(AV_RN64A(sl->sub_mb_type) &
-                 ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8 | MB_TYPE_DIRECT2) *
-                  0x0001000100010001ULL));
-}
-
-int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup);
-
-int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src);
-void ff_h264_unref_picture(H264Context *h, H264Picture *pic);
-
-int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl);
-
-void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height);
-
-int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl,
-                                const H2645NAL *nal);
-int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count);
-int ff_h264_update_thread_context(AVCodecContext *dst,
-                                  const AVCodecContext *src);
-
-void ff_h264_flush_change(H264Context *h);
-
-void ff_h264_free_tables(H264Context *h);
-
-#endif /* AVCODEC_H264_H */