/*
* Generic DCT based hybrid video encoder
- * Copyright (c) 2000,2001 Gerard Lantau.
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU 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 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 program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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
*/
-/* Macros for picture code type. */
-#define I_TYPE 1
-#define P_TYPE 2
-#define B_TYPE 3
-#define S_TYPE 4 //S(GMC)-VOP MPEG4
+#ifndef AVCODEC_MPEGVIDEO_H
+#define AVCODEC_MPEGVIDEO_H
+
+#define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
enum OutputFormat {
FMT_MPEG1,
FMT_H263,
- FMT_MJPEG,
+ FMT_MJPEG,
};
#define MPEG_BUF_SIZE (16 * 1024)
#define MAX_FCODE 7
#define MAX_MV 2048
+#define REORDER_BUFFER_SIZE (FF_MAX_B_FRAMES+2)
+
+#define ME_MAP_SIZE 64
+#define ME_MAP_SHIFT 3
+#define ME_MAP_MV_BITS 11
typedef struct Predictor{
double coeff;
double decay;
} Predictor;
+typedef struct RateControlEntry{
+ int pict_type;
+ int qscale;
+ int mv_bits;
+ int i_tex_bits;
+ int p_tex_bits;
+ int misc_bits;
+ UINT64 expected_bits;
+ int new_pict_type;
+ float new_qscale;
+}RateControlEntry;
+
+typedef struct RateControlContext{
+ FILE *stats_file;
+ int num_entries;
+ RateControlEntry *entry;
+}RateControlContext;
+
+typedef struct ReorderBuffer{
+ UINT8 *picture[3];
+ int pict_type;
+ int qscale;
+ int force_type;
+ int picture_number;
+ int picture_in_gop_number;
+} ReorderBuffer;
+
typedef struct MpegEncContext {
struct AVCodecContext *avctx;
/* the following parameters must be initialized before encoding */
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_pred; /* use mpeg4/h263 ac/dc predictions */
- int h263_msmpeg4; /* generate MSMPEG4 compatible stream */
+ int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
int h263_intel; /* use I263 intel 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 force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */
+ int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */
+ int max_b_frames; /* max number of b-frames for encoding */
+ float b_quant_factor;/* qscale factor between ips and b frames */
+ float b_quant_offset;/* qscale offset between ips and b frames */
+ int rc_strategy;
+ 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 */
/* sequence parameters */
int context_initialized;
+ int input_picture_number;
+ int input_picture_in_gop_number; /* 0-> first pic in gop, ... */
int picture_number;
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 picture_in_gop_number; /* 0-> first pic in gop, ... */
- int mb_width, mb_height;
+ 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_num; /* number of MBs of a picture */
int linesize; /* line size, in bytes, may be different from width */
UINT8 *new_picture[3]; /* picture to be compressed */
- UINT8 *last_picture[3]; /* previous picture */
+ UINT8 *picture_buffer[REORDER_BUFFER_SIZE][3]; /* internal buffers used for reordering of input pictures */
+ int picture_buffer_index;
+ ReorderBuffer coded_order[REORDER_BUFFER_SIZE];
+ UINT8 *last_picture[3]; /* previous picture */
UINT8 *last_picture_base[3]; /* real start of the picture */
- UINT8 *next_picture[3]; /* previous picture (for bidir pred) */
+ UINT8 *next_picture[3]; /* previous picture (for bidir pred) */
UINT8 *next_picture_base[3]; /* real start of the picture */
- UINT8 *aux_picture[3]; /* aux picture (for B frames only) */
- UINT8 *aux_picture_base[3]; /* real start of the picture */
- UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
- int last_dc[3]; /* last DC values for MPEG1 */
- INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
+ UINT8 *aux_picture[3]; /* aux picture (for B frames only) */
+ UINT8 *aux_picture_base[3]; /* real start of the picture */
+ UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
+ int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */
+ int last_dc[3]; /* last DC values for MPEG1 */
+ INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
int y_dc_scale, c_dc_scale;
- UINT8 *coded_block; /* used for coded block pattern prediction */
- INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
+ UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
+ INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
int ac_pred;
int mb_skiped; /* MUST BE SET only during DECODING */
- UINT8 *mbskip_table; /* used to avoid copy if macroblock
- skipped (for black regions for example) */
- UINT8 *mbintra_table; /* used to kill a few memsets */
-
- int qscale;
- int pict_type;
- int last_non_b_pict_type; /* used for mpeg4 gmc b-frames */
- int last_pict_type; /* used for bit rate stuff (needs that to update the right predictor) */
+ UINT8 *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 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
+ UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
+ UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
+ INT8 *qscale_table; /* used to store qscale for partitioned decoding (& postprocessing FIXME export) */
+
+ int input_qscale; /* qscale prior to reordering of frames */
+ int input_pict_type; /* pict_type prior to reordering of frames */
+ int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */
+ int qscale; /* QP */
+ int last_non_b_qscale; /* QP of last non b frame used for b frame qscale*/
+ int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
+ int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
int frame_rate_index;
/* motion compensation */
int unrestricted_mv;
int h263_long_vectors; /* use horrible h263v1 long vector mode */
- int f_code; /* resolution */
- int b_code; /* backward resolution for B Frames (mpeg4) */
- INT16 *mv_table[2]; /* MV table (1MV per MB)*/
- INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB)*/
- int full_search;
+ int f_code; /* forward MV resolution */
+ int b_code; /* backward MV resolution for B Frames (mpeg4) */
+ INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
+ INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
+ INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
+ INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
+ INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
+ INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
+ INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
+ INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
+ INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
+ int me_method; /* ME algorithm */
+ uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
+ uint32_t *me_map; /* map to avoid duplicate evaluations */
+ uint16_t *me_score_map; /* map to store the SADs */
+ int me_map_generation;
+ int skip_me; /* set if ME is skiped for the current MB */
int mv_dir;
#define MV_DIR_BACKWARD 1
#define MV_DIR_FORWARD 2
*/
int mv[2][4][2];
int field_select[2][2];
- int last_mv[2][2][2];
+ int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
UINT8 *fcode_tab; /* smallest fcode needed for each MV */
int has_b_frames;
- int no_rounding; /* apply no rounding to motion estimation (MPEG4) */
+ 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_incr;
int mb_intra;
- UINT16 *mb_var; /* Table for MB variances */
- UINT8 *mb_type; /* Table for MB type */
+ UINT16 *mb_var; /* Table for MB variances */
+ UINT16 *mc_mb_var; /* Table for motion compensated MB variances */
+ UINT8 *mb_type; /* Table for 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_BACKWAD 0x40
+#define MB_TYPE_BACKWARD 0x40
#define MB_TYPE_BIDIR 0x80
- int block_index[6];
+ int block_index[6]; /* index to current MB in block based arrays with edges*/
int block_wrap[6];
/* matrix transmitted in the bitstream */
UINT16 intra_matrix[64];
UINT16 chroma_intra_matrix[64];
- UINT16 non_intra_matrix[64];
- UINT16 chroma_non_intra_matrix[64];
+ UINT16 inter_matrix[64];
+ UINT16 chroma_inter_matrix[64];
+#define QUANT_BIAS_SHIFT 4
+ 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 */
/* precomputed matrix (combine qscale and DCT renorm) */
- int q_intra_matrix[64];
- int q_non_intra_matrix[64];
+ int q_intra_matrix[32][64];
+ int q_inter_matrix[32][64];
/* identical to the above but for MMX & these are not permutated */
- UINT16 __align8 q_intra_matrix16[64] ;
- UINT16 __align8 q_non_intra_matrix16[64];
+ UINT16 __align8 q_intra_matrix16[32][64];
+ UINT16 __align8 q_inter_matrix16[32][64];
+ UINT16 __align8 q_intra_matrix16_bias[32][64];
+ UINT16 __align8 q_inter_matrix16_bias[32][64];
int block_last_index[6]; /* last non zero coefficient in block */
void *opaque; /* private data for the user */
/* bit rate control */
- int I_frame_bits; /* wanted number of bits per I frame */
- int P_frame_bits; /* same for P frame */
- int avg_mb_var; /* average MB variance for current frame */
- int mc_mb_var; /* motion compensated MB variance for current frame */
- int last_mc_mb_var; /* motion compensated MB variance for last frame */
+ int I_frame_bits; //FIXME used in mpeg12 ...
+ int mb_var_sum; /* sum of MB variance for current frame */
+ int mc_mb_var_sum; /* motion compensated MB variance for current frame */
+ int last_non_b_mc_mb_var;/* motion compensated MB variance for last non b frame */
INT64 wanted_bits;
INT64 total_bits;
- int frame_bits; /* bits used for the current frame */
- int last_frame_bits; /* bits used for the last frame */
+ int frame_bits; /* bits used for the current frame */
+ int pb_frame_bits; /* bits of the last b...bp group */
Predictor i_pred;
Predictor p_pred;
double qsum; /* sum of qscales */
double qcount; /* count of qscales */
double short_term_qsum; /* sum of recent qscales */
double short_term_qcount; /* count of recent qscales */
+ RateControlContext rc_context;
/* statistics, used for 2-pass encoding */
int mv_bits;
int skip_count;
int misc_bits; // cbp, mb_type
int last_bits; //temp var used for calculating the above vars
+
+ /* error concealment / resync */
+ int resync_mb_x; /* x position of last resync marker */
+ int resync_mb_y; /* y position of last resync marker */
+ int mb_num_left; /* number of MBs left in this video packet */
+ GetBitContext next_resync_gb; /* starts at the next resync marker */
+ int next_resync_qscale; /* qscale of next resync marker */
+ int next_resync_pos; /* bitstream position of next resync marker */
+#define DECODING_AC_LOST -1
+#define DECODING_ACDC_LOST -2
+#define DECODING_DESYNC -3
+ int decoding_error;
+ int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
+ int error_resilience;
/* H.263 specific */
int gob_number;
int gob_index;
- int first_gob_line;
/* H.263+ specific */
int umvplus;
/* mpeg4 specific */
int time_increment_resolution;
- int time_increment_bits;
- int time_increment;
- int time_base;
- int time;
- int last_non_b_time[2];
+ 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 time; /* time of current frame */
+ INT64 last_non_b_time;
+ UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
+ UINT16 bp_time; /* time distance between the last b and p,s,i frame */
int shape;
int vol_sprite_usage;
int sprite_width;
int sprite_shift[2][2];
int mcsel;
int quant_precision;
- int quarter_sample;
+ int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
int scalability;
int new_pred;
int reduced_res_vop;
int aspect_ratio_info;
int sprite_warping_accuracy;
int low_latency_sprite;
- int data_partioning;
- int resync_marker;
- int resync_x_pos;
+ int data_partitioning;
+ 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;
/* divx specific, used to workaround (many) bugs in divx5 */
int divx_version;
int divx_build;
-
+#define BITSTREAM_BUFFER_SIZE 1024*256
+ UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
+ int bitstream_buffer_size;
+
/* RV10 specific */
int rv10_version; /* RV10 version: 0 or 3 */
int rv10_first_dc_coded[3];
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 slice_height; /* in macroblocks */
int first_slice_line; /* used in mpeg4 too to handle resync markers */
int flipflop_rounding;
- int bitrate;
- int msmpeg4_version; /* 1=mp41, 2=mp42, 3=mp43/divx3 */
+ int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 */
/* decompression specific */
GetBitContext gb;
UINT32 mb_line_avgsize;
DCTELEM (*block)[64]; /* points to one of the following blocks */
- DCTELEM intra_block[6][64] __align8;
- DCTELEM inter_block[6][64] __align8;
- DCTELEM inter4v_block[6][64] __align8;
- void (*dct_unquantize)(struct MpegEncContext *s,
+ 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);
} MpegEncContext;
#ifdef HAVE_MMX
void MPV_common_init_mmx(MpegEncContext *s);
#endif
+extern int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
+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);
/* motion_est.c */
-
-void estimate_motion(MpegEncContext *s,
- int mb_x, int mb_y);
+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 INT16 default_intra_matrix[64];
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);
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);
/* rv10.c */
void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
void msmpeg4_encode_mb(MpegEncContext * s,
DCTELEM block[6][64],
int motion_x, int motion_y);
-void msmpeg4_dc_scale(MpegEncContext * s);
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 msmpeg4_decode_init_vlc(MpegEncContext *s);
+void ff_old_msmpeg4_dc_scale(MpegEncContext *s);
/* mjpegenc.c */
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);
+int ff_rate_estimate_qscale(MpegEncContext *s);
+int ff_rate_estimate_qscale_pass2(MpegEncContext *s);
+void ff_write_pass1_stats(MpegEncContext *s);
+void ff_rate_control_uninit(MpegEncContext *s);
+
+#endif /* AVCODEC_MPEGVIDEO_H */
projects / ffmpeg / blobdiff