@ -37,6 +37,10 @@ enum OutputFormat {
# 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 count ;
@ -100,8 +104,12 @@ typedef struct MpegEncContext {
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 */
@ -142,6 +150,9 @@ typedef struct MpegEncContext {
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 */
@ -159,7 +170,6 @@ typedef struct MpegEncContext {
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 ( * last_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 */
@ -169,6 +179,10 @@ typedef struct MpegEncContext {
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
@ -201,12 +215,15 @@ typedef struct MpegEncContext {
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_BACKWARD 0x40
@ -239,8 +256,8 @@ typedef struct MpegEncContext {
/* bit rate control */
int I_frame_bits ; //FIXME used in mpeg12 ...
int avg_mb_var ; /* average MB variance for current frame */
int mc_mb_var ; /* motion compensated MB variance for current frame */
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 ;
@ -264,11 +281,24 @@ typedef struct MpegEncContext {
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 ;
@ -306,12 +336,17 @@ typedef struct MpegEncContext {
int aspect_ratio_info ;
int sprite_warping_accuracy ;
int low_latency_sprite ;
int data_partioning ;
int resync_marker ;
int resync_x_pos ;
int data_partiti oning ;
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 ;
@ -341,7 +376,6 @@ typedef struct MpegEncContext {
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 ; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 */
/* decompression specific */
GetBitContext gb ;
@ -402,6 +436,9 @@ void MPV_common_init_mmx(MpegEncContext *s);
# endif
int ( * dct_quantize ) ( MpegEncContext * s , DCTELEM * block , int n , int qscale , int * overflow ) ;
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 ff_estimate_p_frame_motion ( MpegEncContext * s ,
@ -479,6 +516,13 @@ 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 ) ;
/* rv10.c */
void rv10_encode_picture_header ( MpegEncContext * s , int picture_number ) ;