644 lines
27 KiB
C
644 lines
27 KiB
C
/*
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* Generic DCT based hybrid video encoder
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef AVCODEC_MPEGVIDEO_H
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#define AVCODEC_MPEGVIDEO_H
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#define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
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enum OutputFormat {
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FMT_MPEG1,
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FMT_H263,
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FMT_MJPEG,
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};
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#define MPEG_BUF_SIZE (16 * 1024)
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#define QMAT_SHIFT_MMX 16
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#define QMAT_SHIFT 22
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#define MAX_FCODE 7
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#define MAX_MV 2048
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#define REORDER_BUFFER_SIZE (FF_MAX_B_FRAMES+2)
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#define ME_MAP_SIZE 64
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#define ME_MAP_SHIFT 3
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#define ME_MAP_MV_BITS 11
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/* run length table */
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#define MAX_RUN 64
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#define MAX_LEVEL 64
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typedef struct Predictor{
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double coeff;
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double count;
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double decay;
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} Predictor;
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typedef struct RateControlEntry{
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int pict_type;
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float qscale;
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int mv_bits;
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int i_tex_bits;
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int p_tex_bits;
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int misc_bits;
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UINT64 expected_bits;
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int new_pict_type;
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float new_qscale;
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int mc_mb_var_sum;
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int mb_var_sum;
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int i_count;
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int f_code;
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int b_code;
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}RateControlEntry;
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typedef struct RateControlContext{
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FILE *stats_file;
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int num_entries; /* number of RateControlEntries */
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RateControlEntry *entry;
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int buffer_index; /* amount of bits in the video/audio buffer */
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Predictor pred[5];
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double short_term_qsum; /* sum of recent qscales */
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double short_term_qcount; /* count of recent qscales */
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double pass1_rc_eq_output_sum;/* sum of the output of the rc equation, this is used for normalization */
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double pass1_wanted_bits; /* bits which should have been outputed by the pass1 code (including complexity init) */
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double last_qscale;
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double last_qscale_for[5]; /* last qscale for a specific pict type, used for max_diff & ipb factor stuff */
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int last_mc_mb_var_sum;
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int last_mb_var_sum;
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UINT64 i_cplx_sum[5];
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UINT64 p_cplx_sum[5];
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UINT64 mv_bits_sum[5];
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UINT64 qscale_sum[5];
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int frame_count[5];
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int last_non_b_pict_type;
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}RateControlContext;
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typedef struct ReorderBuffer{
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UINT8 *picture[3];
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int pict_type;
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int qscale;
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int force_type;
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int picture_number;
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int picture_in_gop_number;
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} ReorderBuffer;
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typedef struct ScanTable{
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UINT8 permutated[64];
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UINT8 raster_end[64];
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} ScanTable;
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typedef struct MpegEncContext {
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struct AVCodecContext *avctx;
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/* the following parameters must be initialized before encoding */
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int width, height; /* picture size. must be a multiple of 16 */
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int gop_size;
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int frame_rate; /* number of frames per second */
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int intra_only; /* if true, only intra pictures are generated */
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int bit_rate; /* wanted bit rate */
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int bit_rate_tolerance; /* amount of +- bits (>0)*/
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enum OutputFormat out_format; /* output format */
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int h263_pred; /* use mpeg4/h263 ac/dc predictions */
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/* the following codec id fields are deprecated in favor of codec_id */
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int h263_plus; /* h263 plus headers */
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int h263_rv10; /* use RV10 variation for H263 */
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int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
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int h263_intel; /* use I263 intel h263 header */
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int codec_id; /* see CODEC_ID_xxx */
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int fixed_qscale; /* fixed qscale if non zero */
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float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
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float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
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int qmin; /* min qscale */
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int qmax; /* max qscale */
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int max_qdiff; /* max qscale difference between frames */
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int encoding; /* true if we are encoding (vs decoding) */
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int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
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int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */
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int max_b_frames; /* max number of b-frames for encoding */
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int b_frame_strategy;
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int luma_elim_threshold;
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int chroma_elim_threshold;
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int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
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int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
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/* the following fields are managed internally by the encoder */
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/* bit output */
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PutBitContext pb;
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/* sequence parameters */
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int context_initialized;
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int input_picture_number;
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int input_picture_in_gop_number; /* 0-> first pic in gop, ... */
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int picture_number;
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int fake_picture_number; /* picture number at the bitstream frame rate */
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int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
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int picture_in_gop_number; /* 0-> first pic in gop, ... */
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int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
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int mb_width, mb_height; /* number of MBs horizontally & vertically */
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int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
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int mb_num; /* number of MBs of a picture */
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int linesize; /* line size, in bytes, may be different from width */
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int uvlinesize; /* line size, for chroma in bytes, may be different from width */
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UINT8 *new_picture[3]; /* picture to be compressed */
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UINT8 *picture_buffer[REORDER_BUFFER_SIZE][3]; /* internal buffers used for reordering of input pictures */
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int picture_buffer_index;
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ReorderBuffer coded_order[REORDER_BUFFER_SIZE];
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UINT8 *last_picture[3]; /* previous picture */
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UINT8 *last_picture_base[3]; /* real start of the picture */
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UINT8 *next_picture[3]; /* previous picture (for bidir pred) */
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UINT8 *next_picture_base[3]; /* real start of the picture */
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UINT8 *aux_picture[3]; /* aux picture (for B frames only) */
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UINT8 *aux_picture_base[3]; /* real start of the picture */
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UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
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void *last_dr_opaque;
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void *next_dr_opaque;
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int ip_buffer_count; /* number of buffers, currently only >2 if dr1 is used */
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int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */
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int last_dc[3]; /* last DC values for MPEG1 */
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INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
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int y_dc_scale, c_dc_scale;
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UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
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UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
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UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
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INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
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int ac_pred;
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int mb_skiped; /* MUST BE SET only during DECODING */
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UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
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and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
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UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
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UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
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INT8 *qscale_table; /* used to store qscale for partitioned decoding (& postprocessing FIXME export) */
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UINT8 *edge_emu_buffer;
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int input_qscale; /* qscale prior to reordering of frames */
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int input_pict_type; /* pict_type prior to reordering of frames */
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int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */
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int qscale; /* QP */
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float frame_qscale; /* qscale from the frame level rc */
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int adaptive_quant; /* use adaptive quantization */
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int dquant; /* qscale difference to prev qscale */
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int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
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int last_pict_type;
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int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
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int frame_rate_index;
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/* motion compensation */
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int unrestricted_mv;
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int h263_long_vectors; /* use horrible h263v1 long vector mode */
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int f_code; /* forward MV resolution */
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int b_code; /* backward MV resolution for B Frames (mpeg4) */
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INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
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INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
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INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
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INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
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INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
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INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
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INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
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INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
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INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
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int me_method; /* ME algorithm */
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uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
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uint32_t *me_map; /* map to avoid duplicate evaluations */
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uint16_t *me_score_map; /* map to store the SADs */
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int me_map_generation;
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int skip_me; /* set if ME is skiped for the current MB */
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int scene_change_score;
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int mv_dir;
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#define MV_DIR_BACKWARD 1
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#define MV_DIR_FORWARD 2
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#define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
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int mv_type;
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#define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
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#define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
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#define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
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#define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
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#define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
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/* motion vectors for a macroblock
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first coordinate : 0 = forward 1 = backward
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second " : depend on type
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third " : 0 = x, 1 = y
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*/
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int mv[2][4][2];
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int field_select[2][2];
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int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
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UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
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UINT8 *fcode_tab; /* smallest fcode needed for each MV */
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int has_b_frames;
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int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
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for b-frames rounding mode is allways 0 */
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int hurry_up; /* when set to 1 during decoding, b frames will be skiped
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when set to 2 idct/dequant will be skipped too */
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/* macroblock layer */
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int mb_x, mb_y;
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int mb_incr;
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int mb_intra;
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UINT16 *mb_var; /* Table for MB variances */
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UINT16 *mc_mb_var; /* Table for motion compensated MB variances */
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UINT8 *mb_mean; /* Table for MB luminance */
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UINT8 *mb_type; /* Table for MB type */
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#define MB_TYPE_INTRA 0x01
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#define MB_TYPE_INTER 0x02
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#define MB_TYPE_INTER4V 0x04
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#define MB_TYPE_SKIPED 0x08
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#define MB_TYPE_GMC 0x10
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#define MB_TYPE_DIRECT 0x10
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#define MB_TYPE_FORWARD 0x20
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#define MB_TYPE_BACKWARD 0x40
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#define MB_TYPE_BIDIR 0x80
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int block_index[6]; /* index to current MB in block based arrays with edges*/
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int block_wrap[6];
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/* matrix transmitted in the bitstream */
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UINT16 intra_matrix[64];
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UINT16 chroma_intra_matrix[64];
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UINT16 inter_matrix[64];
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UINT16 chroma_inter_matrix[64];
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#define QUANT_BIAS_SHIFT 4
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int intra_quant_bias; /* bias for the quantizer */
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int inter_quant_bias; /* bias for the quantizer */
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int min_qcoeff; /* minimum encodable coefficient */
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int max_qcoeff; /* maximum encodable coefficient */
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/* precomputed matrix (combine qscale and DCT renorm) */
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int q_intra_matrix[32][64];
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int q_inter_matrix[32][64];
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/* identical to the above but for MMX & these are not permutated */
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UINT16 __align8 q_intra_matrix16[32][64];
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UINT16 __align8 q_inter_matrix16[32][64];
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UINT16 __align8 q_intra_matrix16_bias[32][64];
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UINT16 __align8 q_inter_matrix16_bias[32][64];
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int block_last_index[6]; /* last non zero coefficient in block */
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/* scantables */
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ScanTable intra_scantable;
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ScanTable intra_h_scantable;
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ScanTable intra_v_scantable;
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ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
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UINT8 idct_permutation[64];
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void *opaque; /* private data for the user */
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/* bit rate control */
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int I_frame_bits; //FIXME used in mpeg12 ...
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int mb_var_sum; /* sum of MB variance for current frame */
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int mc_mb_var_sum; /* motion compensated MB variance for current frame */
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INT64 wanted_bits;
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INT64 total_bits;
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int frame_bits; /* bits used for the current frame */
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RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
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/* statistics, used for 2-pass encoding */
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int mv_bits;
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int header_bits;
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int i_tex_bits;
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int p_tex_bits;
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int i_count;
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int f_count;
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int b_count;
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int skip_count;
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int misc_bits; // cbp, mb_type
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int last_bits; //temp var used for calculating the above vars
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/* error concealment / resync */
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int resync_mb_x; /* x position of last resync marker */
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int resync_mb_y; /* y position of last resync marker */
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int mb_num_left; /* number of MBs left in this video packet */
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GetBitContext next_resync_gb; /* starts at the next resync marker */
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int next_resync_qscale; /* qscale of next resync marker */
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int next_resync_pos; /* bitstream position of next resync marker */
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#define DECODING_AC_LOST -1
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#define DECODING_ACDC_LOST -2
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#define DECODING_DESYNC -3
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int decoding_error;
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int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
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int error_resilience;
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/* H.263 specific */
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int gob_number;
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int gob_index;
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/* H.263+ specific */
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int umvplus;
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int umvplus_dec;
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int h263_aic; /* Advanded INTRA Coding (AIC) */
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int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
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/* mpeg4 specific */
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int time_increment_resolution;
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int time_increment_bits; /* number of bits to represent the fractional part of time */
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int last_time_base;
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int time_base; /* time in seconds of last I,P,S Frame */
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INT64 time; /* time of current frame */
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INT64 last_non_b_time;
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UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
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UINT16 pb_time; /* time distance between the last b and p,s,i frame */
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UINT16 pp_field_time;
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UINT16 pb_field_time; /* like above, just for interlaced */
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int shape;
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int vol_sprite_usage;
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int sprite_width;
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int sprite_height;
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int sprite_left;
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int sprite_top;
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int sprite_brightness_change;
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int num_sprite_warping_points;
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int real_sprite_warping_points;
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int sprite_offset[2][2];
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int sprite_delta[2][2][2];
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int sprite_shift[2][2];
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int mcsel;
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int quant_precision;
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int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
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int scalability;
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int hierachy_type;
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int enhancement_type;
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int new_pred;
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int reduced_res_vop;
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int aspect_ratio_info;
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int aspected_width;
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int aspected_height;
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int sprite_warping_accuracy;
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int low_latency_sprite;
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int data_partitioning;
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int rvlc; /* reversible vlc */
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int resync_marker; /* could this stream contain resync markers*/
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int low_delay; /* no reordering needed / has no b-frames */
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int vo_type;
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int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
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PutBitContext tex_pb; /* used for data partitioned VOPs */
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PutBitContext pb2; /* used for data partitioned VOPs */
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#define PB_BUFFER_SIZE 1024*256
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uint8_t *tex_pb_buffer;
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uint8_t *pb2_buffer;
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int mpeg_quant;
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#define CO_LOCATED_TYPE_4MV 1
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#define CO_LOCATED_TYPE_FIELDMV 2
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INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
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INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
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INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
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int t_frame; /* time distance of first I -> B, used for interlaced b frames */
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/* divx specific, used to workaround (many) bugs in divx5 */
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int divx_version;
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int divx_build;
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#define BITSTREAM_BUFFER_SIZE 1024*256
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UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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int bitstream_buffer_size;
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/* RV10 specific */
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int rv10_version; /* RV10 version: 0 or 3 */
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int rv10_first_dc_coded[3];
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/* MJPEG specific */
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struct MJpegContext *mjpeg_ctx;
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int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
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int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
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int mjpeg_write_tables; /* do we want to have quantisation- and
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huffmantables in the jpeg file ? */
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int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
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|
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/* 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;
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|
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;
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|
|
|
/* decompression specific */
|
|
GetBitContext gb;
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|
|
|
/* 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
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|
|
|
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 mpeg2;
|
|
int full_pel[2];
|
|
int interlaced_dct;
|
|
int last_qscale;
|
|
int first_slice;
|
|
|
|
/* 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 *ptr_lastgob;
|
|
UINT8 *ptr_last_mb_line;
|
|
UINT32 mb_line_avgsize;
|
|
|
|
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
|
|
void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
|
|
DCTELEM *block, int n, int qscale);
|
|
void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
|
|
DCTELEM *block, int n, int qscale);
|
|
void (*dct_unquantize_h263)(struct MpegEncContext *s,
|
|
DCTELEM *block, int n, int qscale);
|
|
void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
|
|
DCTELEM *block, int n, int qscale);
|
|
int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
|
|
void (*fdct)(DCTELEM *block/* align 16*/);
|
|
void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
|
|
void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
|
|
} 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]);
|
|
void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
|
|
void MPV_frame_end(MpegEncContext *s);
|
|
#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
|
|
extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
|
|
void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
|
|
void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
|
|
void ff_clean_intra_table_entries(MpegEncContext *s);
|
|
void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
|
|
|
|
extern int ff_bit_exact;
|
|
|
|
/* 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);
|
|
|
|
/* mpeg12.c */
|
|
extern const INT16 ff_mpeg1_default_intra_matrix[64];
|
|
extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
|
|
extern UINT8 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);
|
|
|
|
/* h263enc.c */
|
|
typedef struct RLTable {
|
|
int n; /* number of entries of table_vlc minus 1 */
|
|
int last; /* number of values for last = 0 */
|
|
const UINT16 (*table_vlc)[2];
|
|
const INT8 *table_run;
|
|
const INT8 *table_level;
|
|
UINT8 *index_run[2]; /* encoding only */
|
|
INT8 *max_level[2]; /* encoding & decoding */
|
|
INT8 *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 ff_mpeg4_y_dc_scale_table[32];
|
|
extern UINT8 ff_mpeg4_c_dc_scale_table[32];
|
|
extern const INT16 ff_mpeg4_default_intra_matrix[64];
|
|
extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
|
|
|
|
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);
|
|
int h263_encode_gob_header(MpegEncContext * s, int mb_line);
|
|
INT16 *h263_pred_motion(MpegEncContext * s, int block,
|
|
int *px, int *py);
|
|
void mpeg4_pred_ac(MpegEncContext * s, INT16 *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 h263_decode_gob_header(MpegEncContext *s);
|
|
int mpeg4_decode_picture_header(MpegEncContext * s);
|
|
int intel_h263_decode_picture_header(MpegEncContext *s);
|
|
int h263_decode_mb(MpegEncContext *s,
|
|
DCTELEM block[6][64]);
|
|
int h263_get_picture_format(int width, int height);
|
|
int ff_mpeg4_decode_video_packet_header(MpegEncContext *s);
|
|
int ff_mpeg4_resync(MpegEncContext *s);
|
|
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);
|
|
extern inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr, int *dir_ptr);
|
|
void ff_clean_mpeg4_qscales(MpegEncContext *s);
|
|
void ff_clean_h263_qscales(MpegEncContext *s);
|
|
|
|
/* 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 msmpeg4_decode_mb(MpegEncContext *s,
|
|
DCTELEM block[6][64]);
|
|
int ff_msmpeg4_decode_init(MpegEncContext *s);
|
|
void ff_msmpeg4_encode_init(MpegEncContext *s);
|
|
|
|
/* mjpegenc.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, char **const_name,
|
|
double (**func1)(void *, double), char **func1_name,
|
|
double (**func2)(void *, double, double), char **func2_name,
|
|
void *opaque);
|
|
|
|
|
|
#endif /* AVCODEC_MPEGVIDEO_H */
|