--- /dev/null
+/*
+ * Generic DCT based hybrid video encoder
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file mpegvideo.h
+ * mpegvideo header.
+ */
+
+#ifndef AVCODEC_MPEGVIDEO_H
+#define AVCODEC_MPEGVIDEO_H
+
+#include "dsputil.h"
+
+#define FRAME_SKIPED 100 ///< return value for header parsers if frame is not coded
+
+enum OutputFormat {
+ FMT_MPEG1,
+ FMT_H263,
+ FMT_MJPEG,
+ FMT_H264,
+};
+
+#define EDGE_WIDTH 16
+
+#define MPEG_BUF_SIZE (16 * 1024)
+
+#define QMAT_SHIFT_MMX 16
+#define QMAT_SHIFT 22
+
+#define MAX_FCODE 7
+#define MAX_MV 2048
+
+#define MAX_PICTURE_COUNT 15
+
+#define ME_MAP_SIZE 64
+#define ME_MAP_SHIFT 3
+#define ME_MAP_MV_BITS 11
+
+/* run length table */
+#define MAX_RUN 64
+#define MAX_LEVEL 64
+
+#define I_TYPE FF_I_TYPE ///< Intra
+#define P_TYPE FF_P_TYPE ///< Predicted
+#define B_TYPE FF_B_TYPE ///< Bi-dir predicted
+#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4
+#define SI_TYPE FF_SI_TYPE ///< Switching Intra
+#define SP_TYPE FF_SP_TYPE ///< Switching Predicted
+
+typedef struct Predictor{
+ double coeff;
+ double count;
+ double decay;
+} Predictor;
+
+typedef struct RateControlEntry{
+ int pict_type;
+ float qscale;
+ int mv_bits;
+ int i_tex_bits;
+ int p_tex_bits;
+ int misc_bits;
+ uint64_t expected_bits;
+ int new_pict_type;
+ float new_qscale;
+ int mc_mb_var_sum;
+ int mb_var_sum;
+ int i_count;
+ int f_code;
+ int b_code;
+}RateControlEntry;
+
+/**
+ * rate control context.
+ */
+typedef struct RateControlContext{
+ FILE *stats_file;
+ int num_entries; ///< number of RateControlEntries
+ RateControlEntry *entry;
+ int buffer_index; ///< amount of bits in the video/audio buffer
+ Predictor pred[5];
+ double short_term_qsum; ///< sum of recent qscales
+ double short_term_qcount; ///< count of recent qscales
+ double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization
+ double pass1_wanted_bits; ///< bits which should have been outputed by the pass1 code (including complexity init)
+ double last_qscale;
+ double last_qscale_for[5]; ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff
+ int last_mc_mb_var_sum;
+ int last_mb_var_sum;
+ uint64_t i_cplx_sum[5];
+ uint64_t p_cplx_sum[5];
+ uint64_t mv_bits_sum[5];
+ uint64_t qscale_sum[5];
+ int frame_count[5];
+ int last_non_b_pict_type;
+}RateControlContext;
+
+/**
+ * Scantable.
+ */
+typedef struct ScanTable{
+ const uint8_t *scantable;
+ uint8_t permutated[64];
+ uint8_t raster_end[64];
+#ifdef ARCH_POWERPC
+ /** Used by dct_quantise_alitvec to find last-non-zero */
+ uint8_t __align8 inverse[64];
+#endif
+} ScanTable;
+
+/**
+ * Picture.
+ */
+typedef struct Picture{
+ FF_COMMON_FRAME
+
+ /**
+ * halfpel luma planes.
+ */
+ uint8_t *interpolated[3];
+
+ int16_t (*motion_val[2])[2];
+ int8_t *ref_index[2];
+ uint32_t *mb_type_base;
+ uint32_t *mb_type; ///< mb_type_base + mb_width + 2, note: only used for decoding currently
+#define MB_TYPE_INTRA4x4 0x0001
+#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
+#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 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 //FIXME mpeg4 specific
+#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
+//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 pat, ...)
+
+#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 doesnt work if subMBs
+
+
+ int field_poc[2]; ///< h264 top/bottom POC
+ int poc; ///< h264 frame POC
+ int frame_num; ///< h264 frame_num
+ int pic_id; ///< h264 pic_num or long_term_pic_idx
+ int long_ref; ///< 1->long term reference 0->short term reference
+
+ int mb_var_sum; ///< sum of MB variance for current frame
+ int mc_mb_var_sum; ///< motion compensated MB variance for current frame
+ uint16_t *mb_var; ///< Table for MB variances
+ uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
+ uint8_t *mb_mean; ///< Table for MB luminance
+ int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decission
+ int b_frame_score; /* */
+} Picture;
+
+typedef struct ParseContext{
+ uint8_t *buffer;
+ int index;
+ int last_index;
+ int buffer_size;
+ uint32_t state; ///< contains the last few bytes in MSB order
+ int frame_start_found;
+ int overread; ///< the number of bytes which where irreversibly read from the next frame
+ int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
+} ParseContext;
+
+struct MpegEncContext;
+
+/**
+ * Motion estimation context.
+ */
+typedef struct MotionEstContext{
+ int skip; ///< set if ME is skiped 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 doesnt need to malloc/free
+ uint32_t *map; ///< map to avoid duplicate evaluations
+ uint32_t *score_map; ///< map to store the scores
+ int map_generation;
+ int pre_penalty_factor;
+ int penalty_factor;
+ int sub_penalty_factor;
+ int mb_penalty_factor;
+ int pre_pass; ///< = 1 for the pre pass
+ int dia_size;
+ uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
+ int (*sub_motion_search)(struct MpegEncContext * s,
+ int *mx_ptr, int *my_ptr, int dmin,
+ int xmin, int ymin, int xmax, int ymax,
+ int pred_x, int pred_y, Picture *ref_picture,
+ int n, int size, uint8_t * const mv_penalty);
+ int (*motion_search[7])(struct MpegEncContext * s, int block,
+ int *mx_ptr, int *my_ptr,
+ int P[10][2], int pred_x, int pred_y,
+ int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
+ int ref_mv_scale, uint8_t * const mv_penalty);
+ int (*pre_motion_search)(struct MpegEncContext * s, int block,
+ int *mx_ptr, int *my_ptr,
+ int P[10][2], int pred_x, int pred_y,
+ int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
+ int ref_mv_scale, uint8_t * const mv_penalty);
+ int (*get_mb_score)(struct MpegEncContext * s, int mx, int my, int pred_x, int pred_y, Picture *ref_picture,
+ uint8_t * const mv_penalty);
+}MotionEstContext;
+
+/**
+ * MpegEncContext.
+ */
+typedef struct MpegEncContext {
+ 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
+ int bit_rate_tolerance; ///< amount of +- bits (>0)
+ enum OutputFormat out_format; ///< output format
+ int h263_pred; ///< use mpeg4/h263 ac/dc predictions
+
+/* the following codec id fields are deprecated in favor of codec_id */
+ int h263_plus; ///< h263 plus headers
+ int h263_rv10; ///< use RV10 variation for H263
+ int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
+ int h263_intel; ///< use I263 intel h263 header
+ int h263_flv; ///< use flv h263 header
+
+ int codec_id; /* see CODEC_ID_xxx */
+ int fixed_qscale; ///< fixed qscale if non zero
+ float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
+ float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
+ int max_qdiff; ///< max qscale difference between frames
+ int encoding; ///< true if we are encoding (vs decoding)
+ int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
+ int max_b_frames; ///< max number of b-frames for encoding
+ int b_frame_strategy;
+ 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
+ /* the following fields are managed internally by the encoder */
+
+ /** bit output */
+ PutBitContext pb;
+
+ /* sequence parameters */
+ int context_initialized;
+ int input_picture_number;
+ int picture_number;
+ int picture_in_gop_number; ///< 0-> first pic in gop, ...
+ int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
+ int mb_width, mb_height; ///< number of MBs horizontally & vertically
+ int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressng of left & top MBs withoutt sig11
+ int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replicateion)
+ int mb_num; ///< number of MBs of a picture
+ int linesize; ///< line size, in bytes, may be different from width
+ int uvlinesize; ///< line size, for chroma in bytes, may be different from width
+ Picture picture[MAX_PICTURE_COUNT]; ///< main picture buffer
+ Picture *input_picture[MAX_PICTURE_COUNT]; ///< next pictures on display order for encoding
+ Picture *reordered_input_picture[MAX_PICTURE_COUNT]; ///< pointer to the next pictures in codedorder for encoding
+
+ /**
+ * 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 *new_picture_ptr; ///< pointer to the source picture for encoding
+ Picture *current_picture_ptr; ///< pointer to the current picture
+ int last_dc[3]; ///< last DC values for MPEG1
+ int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
+ int16_t dc_cache[4*5];
+ int y_dc_scale, c_dc_scale;
+ uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
+ uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
+ uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
+ int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
+ int ac_pred;
+ uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip
+#define PREV_PICT_TYPES_BUFFER_SIZE 256
+ int mb_skiped; ///< 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 *allocated_edge_emu_buffer;
+ uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
+
+ int qscale; ///< QP
+ float frame_qscale; ///< qscale from the frame level rc FIXME remove
+ int adaptive_quant; ///< use adaptive quantization
+ int dquant; ///< qscale difference to prev qscale
+ int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ...
+ int last_pict_type;
+ int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
+ int frame_rate_index;
+ /* motion compensation */
+ int unrestricted_mv; ///< mv can point outside of the coded picture
+ int h263_long_vectors; ///< use horrible h263v1 long vector mode
+ int decode; ///< if 0 then decoding will be skiped (for encoding b frames for example)
+
+ DSPContext dsp; ///< pointers for accelerated dsp fucntions
+ int f_code; ///< forward MV resolution
+ int b_code; ///< backward MV resolution for B Frames (mpeg4)
+ int16_t (*motion_val)[2];
+ 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_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
+ int me_method; ///< ME algorithm
+ int scene_change_score;
+ int mv_dir;
+#define MV_DIR_BACKWARD 1
+#define MV_DIR_FORWARD 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
+
+ MotionEstContext me;
+
+ int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
+ for b-frames rounding mode is allways 0 */
+
+ int hurry_up; /**< when set to 1 during decoding, b frames will be skiped
+ when set to 2 idct/dequant will be skipped too */
+
+ /* macroblock layer */
+ int mb_x, mb_y;
+ int mb_skip_run;
+ int mb_intra;
+ uint8_t *mb_type; ///< Table for MB type FIXME remove and use picture->mb_type
+#define MB_TYPE_INTRA 0x01
+#define MB_TYPE_INTER 0x02
+#define MB_TYPE_INTER4V 0x04
+#define MB_TYPE_SKIPED 0x08
+//#define MB_TYPE_GMC 0x10
+
+#define MB_TYPE_DIRECT 0x10
+#define MB_TYPE_FORWARD 0x20
+#define MB_TYPE_BACKWARD 0x40
+#define MB_TYPE_BIDIR 0x80
+
+ 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;
+ uint8_t *chroma_dc_vlc_length;
+#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
+
+ /** precomputed matrix (combine qscale and DCT renorm) */
+ int __align8 q_intra_matrix[32][64];
+ int __align8 q_inter_matrix[32][64];
+ /** identical to the above but for MMX & these are not permutated */
+ uint16_t __align8 q_intra_matrix16[32][64];
+ uint16_t __align8 q_inter_matrix16[32][64];
+ uint16_t __align8 q_intra_matrix16_bias[32][64];
+ uint16_t __align8 q_inter_matrix16_bias[32][64];
+ int block_last_index[6]; ///< last non zero coefficient in block
+ /* scantables */
+ ScanTable __align8 intra_scantable;
+ ScanTable intra_h_scantable;
+ ScanTable intra_v_scantable;
+ ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
+
+ void *opaque; ///< private data for the user
+
+ /* bit rate control */
+ int I_frame_bits; //FIXME used in mpeg12 ...
+ int64_t wanted_bits;
+ int64_t total_bits;
+ int frame_bits; ///< bits used for the current 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 error_count;
+ uint8_t *error_status_table; ///< table of the error status of each MB
+#define VP_START 1 ///< current MB is the first after a resync marker
+#define AC_ERROR 2
+#define DC_ERROR 4
+#define MV_ERROR 8
+#define AC_END 16
+#define DC_END 32
+#define MV_END 64
+//FIXME some prefix?
+
+ 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 error_resilience;
+
+ ParseContext parse_context;
+
+ /* H.263 specific */
+ int gob_number;
+ int gob_index;
+
+ /* H.263+ specific */
+ int umvplus; ///< == H263+ && unrestricted_mv
+ int h263_aic; ///< Advanded INTRA Coding (AIC)
+ int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
+
+ /* mpeg4 specific */
+ int time_increment_resolution;
+ int time_increment_bits; ///< number of bits to represent the fractional part of time
+ 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 shape;
+ int vol_sprite_usage;
+ int sprite_width;
+ int sprite_height;
+ int sprite_left;
+ int sprite_top;
+ int sprite_brightness_change;
+ int num_sprite_warping_points;
+ int real_sprite_warping_points;
+ int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
+ int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
+ int sprite_shift[2]; ///< sprite shift [isChroma]
+ int mcsel;
+ int quant_precision;
+ int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
+ int scalability;
+ int hierachy_type;
+ int enhancement_type;
+ int new_pred;
+ int reduced_res_vop;
+ int aspect_ratio_info; //FIXME remove
+ int aspected_width; //FIXME remove
+ int aspected_height; //FIXME remove
+ int sprite_warping_accuracy;
+ int low_latency_sprite;
+ int data_partitioning; ///< data partitioning flag from header
+ int partitioned_frame; ///< is current frame partitioned
+ int rvlc; ///< reversible vlc
+ int resync_marker; ///< could this stream contain resync markers
+ 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
+#define PB_BUFFER_SIZE 1024*256
+ uint8_t *tex_pb_buffer;
+ uint8_t *pb2_buffer;
+ int mpeg_quant;
+ int16_t (*field_mv_table)[2][2]; ///< used for interlaced b frame decoding
+ int8_t (*field_select_table)[2]; ///< wtf, no really another table for interlaced b frames
+ int t_frame; ///< time distance of first I -> B, used for interlaced b frames
+ 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_version;
+ int divx_build;
+ int divx_packed;
+#define BITSTREAM_BUFFER_SIZE 1024*256
+ uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
+ int bitstream_buffer_size;
+
+ int xvid_build;
+
+ /* lavc specific stuff, used to workaround bugs in libavcodec */
+ int ffmpeg_version;
+ int lavc_build;
+
+ /* RV10 specific */
+ int rv10_version; ///< RV10 version: 0 or 3
+ int rv10_first_dc_coded[3];
+
+ /* MJPEG specific */
+ struct MJpegContext *mjpeg_ctx;
+ int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
+ int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
+ int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ?
+ int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers
+
+ /* 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 fake_picture_number; ///< picture number at the bitstream frame rate
+ 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
+ int broken_link; ///< no_output_of_prior_pics_flag
+
+ /* MPEG2 specific - I wish I had not 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 progressive_frame;
+ int full_pel[2];
+ int interlaced_dct;
+ int first_slice;
+ int first_field; ///< is 1 for the first field of a field picture 0 otherwise
+
+ /* RTP specific */
+ /* These are explained on avcodec.h */
+ int rtp_mode;
+ int rtp_payload_size;
+ void (*rtp_callback)(void *data, int size, int packet_number);
+ uint8_t *ptr_lastgob;
+
+ DCTELEM (*block)[64]; ///< points to one of the following blocks
+ DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
+ int (*decode_mb)(struct MpegEncContext *s, DCTELEM 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)(struct MpegEncContext *s,
+ DCTELEM *block/*align 16*/, int n, int qscale);
+ void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
+ DCTELEM *block/*align 16*/, int n, int qscale);
+ void (*dct_unquantize_h263)(struct MpegEncContext *s,
+ DCTELEM *block/*align 16*/, int n, int qscale);
+ void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
+ DCTELEM *block/*align 16*/, int n, int qscale);
+ int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
+ int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
+} MpegEncContext;
+
+
+int DCT_common_init(MpegEncContext *s);
+int MPV_common_init(MpegEncContext *s);
+void MPV_common_end(MpegEncContext *s);
+void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
+int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
+void MPV_frame_end(MpegEncContext *s);
+int MPV_encode_init(AVCodecContext *avctx);
+int MPV_encode_end(AVCodecContext *avctx);
+int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
+#ifdef HAVE_MMX
+void MPV_common_init_mmx(MpegEncContext *s);
+#endif
+#ifdef ARCH_ALPHA
+void MPV_common_init_axp(MpegEncContext *s);
+#endif
+#ifdef HAVE_MLIB
+void MPV_common_init_mlib(MpegEncContext *s);
+#endif
+#ifdef HAVE_MMI
+void MPV_common_init_mmi(MpegEncContext *s);
+#endif
+#ifdef ARCH_ARMV4L
+void MPV_common_init_armv4l(MpegEncContext *s);
+#endif
+#ifdef ARCH_POWERPC
+void MPV_common_init_ppc(MpegEncContext *s);
+#endif
+extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
+void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
+void ff_clean_intra_table_entries(MpegEncContext *s);
+void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
+void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
+void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
+ int src_x, int src_y, int w, int h);
+#define END_NOT_FOUND -100
+int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size);
+void ff_mpeg_flush(AVCodecContext *avctx);
+void ff_print_debug_info(MpegEncContext *s, Picture *pict);
+void ff_write_quant_matrix(PutBitContext *pb, int16_t *matrix);
+
+void ff_er_frame_start(MpegEncContext *s);
+void ff_er_frame_end(MpegEncContext *s);
+void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
+
+
+extern enum PixelFormat ff_yuv420p_list[2];
+
+void ff_init_block_index(MpegEncContext *s);
+
+static inline void ff_update_block_index(MpegEncContext *s){
+ 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]+= 16;
+ s->dest[1]+= 8;
+ s->dest[2]+= 8;
+}
+
+static inline int get_bits_diff(MpegEncContext *s){
+ const int bits= get_bit_count(&s->pb);
+ const int last= s->last_bits;
+
+ s->last_bits = bits;
+
+ return bits - last;
+}
+
+/* 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_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
+void ff_init_me(MpegEncContext *s);
+int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
+
+
+/* mpeg12.c */
+extern const int16_t ff_mpeg1_default_intra_matrix[64];
+extern const int16_t ff_mpeg1_default_non_intra_matrix[64];
+extern uint8_t ff_mpeg1_dc_scale_table[128];
+
+void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
+void mpeg1_encode_mb(MpegEncContext *s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y);
+void ff_mpeg1_encode_init(MpegEncContext *s);
+void ff_mpeg1_encode_slice_header(MpegEncContext *s);
+void ff_mpeg1_clean_buffers(MpegEncContext *s);
+
+
+/** RLTable. */
+typedef struct RLTable {
+ int n; ///< number of entries of table_vlc minus 1
+ int last; ///< number of values for last = 0
+ const uint16_t (*table_vlc)[2];
+ const int8_t *table_run;
+ const int8_t *table_level;
+ uint8_t *index_run[2]; ///< encoding only
+ int8_t *max_level[2]; ///< encoding & decoding
+ int8_t *max_run[2]; ///< encoding & decoding
+ VLC vlc; ///< decoding only deprected FIXME remove
+ RL_VLC_ELEM *rl_vlc[32]; ///< decoding only
+} RLTable;
+
+void init_rl(RLTable *rl);
+void init_vlc_rl(RLTable *rl);
+
+static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
+{
+ int index;
+ index = rl->index_run[last][run];
+ if (index >= rl->n)
+ return rl->n;
+ if (level > rl->max_level[last][run])
+ return rl->n;
+ return index + level - 1;
+}
+
+extern uint8_t ff_mpeg4_y_dc_scale_table[32];
+extern uint8_t ff_mpeg4_c_dc_scale_table[32];
+extern const int16_t ff_mpeg4_default_intra_matrix[64];
+extern const int16_t ff_mpeg4_default_non_intra_matrix[64];
+int ff_h263_decode_init(AVCodecContext *avctx);
+int ff_h263_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size);
+int ff_h263_decode_end(AVCodecContext *avctx);
+void h263_encode_mb(MpegEncContext *s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y);
+void mpeg4_encode_mb(MpegEncContext *s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y);
+void h263_encode_picture_header(MpegEncContext *s, int picture_number);
+void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
+int h263_encode_gob_header(MpegEncContext * s, int mb_line);
+int16_t *h263_pred_motion(MpegEncContext * s, int block,
+ int *px, int *py);
+void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
+ int dir);
+void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
+void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
+void h263_encode_init(MpegEncContext *s);
+void h263_decode_init_vlc(MpegEncContext *s);
+int h263_decode_picture_header(MpegEncContext *s);
+int ff_h263_decode_gob_header(MpegEncContext *s);
+int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
+void ff_h263_update_motion_val(MpegEncContext * s);
+
+
+int intel_h263_decode_picture_header(MpegEncContext *s);
+int flv_h263_decode_picture_header(MpegEncContext *s);
+int ff_h263_decode_mb(MpegEncContext *s,
+ DCTELEM block[6][64]);
+int h263_get_picture_format(int width, int height);
+void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
+void ff_mpeg4_clean_buffers(MpegEncContext *s);
+void ff_mpeg4_stuffing(PutBitContext * pbc);
+void ff_mpeg4_init_partitions(MpegEncContext *s);
+void ff_mpeg4_merge_partitions(MpegEncContext *s);
+void ff_clean_mpeg4_qscales(MpegEncContext *s);
+void ff_clean_h263_qscales(MpegEncContext *s);
+int ff_mpeg4_decode_partitions(MpegEncContext *s);
+int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
+int ff_h263_resync(MpegEncContext *s);
+int ff_h263_get_gob_height(MpegEncContext *s);
+int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
+inline int ff_h263_round_chroma(int x);
+
+
+/* rv10.c */
+void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
+int rv_decode_dc(MpegEncContext *s, int n);
+
+
+/* msmpeg4.c */
+void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
+void msmpeg4_encode_ext_header(MpegEncContext * s);
+void msmpeg4_encode_mb(MpegEncContext * s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y);
+int msmpeg4_decode_picture_header(MpegEncContext * s);
+int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
+int ff_msmpeg4_decode_init(MpegEncContext *s);
+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, DCTELEM 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,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y);
+
+/* mjpeg.c */
+int mjpeg_init(MpegEncContext *s);
+void mjpeg_close(MpegEncContext *s);
+void mjpeg_encode_mb(MpegEncContext *s,
+ DCTELEM block[6][64]);
+void mjpeg_picture_header(MpegEncContext *s);
+void mjpeg_picture_trailer(MpegEncContext *s);
+
+
+/* rate control */
+int ff_rate_control_init(MpegEncContext *s);
+float ff_rate_estimate_qscale(MpegEncContext *s);
+void ff_write_pass1_stats(MpegEncContext *s);
+void ff_rate_control_uninit(MpegEncContext *s);
+double ff_eval(char *s, double *const_value, const char **const_name,
+ double (**func1)(void *, double), const char **func1_name,
+ double (**func2)(void *, double, double), char **func2_name,
+ void *opaque);
+
+
+#endif /* AVCODEC_MPEGVIDEO_H */
projects / synfig.git / blobdiff