#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "vc1.h"
#include "vc1data.h"
#include "vc1acdata.h"
#include "msmpeg4data.h"
#include "unary.h"
#include "simple_idct.h"
#include <assert.h>
Go to the source code of this file.
Defines | |
#define | MB_INTRA_VLC_BITS 9 |
#define | DC_VLC_BITS 9 |
#define | AC_VLC_BITS 9 |
#define | GET_MQUANT() |
Get macroblock-level quantizer scale. | |
#define | GET_MVDATA(_dmv_x, _dmv_y) |
Get MV differentials. | |
Enumerations | |
enum | Imode { IMODE_RAW, IMODE_NORM2, IMODE_DIFF2, IMODE_NORM6, IMODE_DIFF6, IMODE_ROWSKIP, IMODE_COLSKIP } |
Functions | |
static int | vc1_init_common (VC1Context *v) |
Init VC-1 specific tables and VC1Context members. | |
static void | decode_rowskip (uint8_t *plane, int width, int height, int stride, GetBitContext *gb) |
Decode rows by checking if they are skipped. | |
static void | decode_colskip (uint8_t *plane, int width, int height, int stride, GetBitContext *gb) |
Decode columns by checking if they are skipped. | |
static int | bitplane_decoding (uint8_t *data, int *raw_flag, VC1Context *v) |
Decode a bitplane's bits. | |
static int | vop_dquant_decoding (VC1Context *v) |
VOP Dquant decoding. | |
static void | vc1_put_block (VC1Context *v, DCTELEM block[6][64]) |
Put block onto picture. | |
static void | vc1_mc_1mv (VC1Context *v, int dir) |
Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo.c. | |
static void | vc1_mc_4mv_luma (VC1Context *v, int n) |
Do motion compensation for 4-MV macroblock - luminance block. | |
static int | median4 (int a, int b, int c, int d) |
static void | vc1_mc_4mv_chroma (VC1Context *v) |
Do motion compensation for 4-MV macroblock - both chroma blocks. | |
static int | decode_sequence_header_adv (VC1Context *v, GetBitContext *gb) |
static int | decode_sequence_header (AVCodecContext *avctx, GetBitContext *gb) |
Decode Simple/Main Profiles sequence header. | |
static int | decode_entry_point (AVCodecContext *avctx, GetBitContext *gb) |
static int | vc1_parse_frame_header (VC1Context *v, GetBitContext *gb) |
static int | vc1_parse_frame_header_adv (VC1Context *v, GetBitContext *gb) |
static void | vc1_pred_mv (MpegEncContext *s, int n, int dmv_x, int dmv_y, int mv1, int r_x, int r_y, uint8_t *is_intra) |
Predict and set motion vector. | |
static void | vc1_interp_mc (VC1Context *v) |
Motion compensation for direct or interpolated blocks in B-frames. | |
static av_always_inline int | scale_mv (int value, int bfrac, int inv, int qs) |
static void | vc1_b_mc (VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mode) |
Reconstruct motion vector for B-frame and do motion compensation. | |
static void | vc1_pred_b_mv (VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype) |
static int | vc1_i_pred_dc (MpegEncContext *s, int overlap, int pq, int n, int16_t **dc_val_ptr, int *dir_ptr) |
Get predicted DC value for I-frames only prediction dir: left=0, top=1. | |
static int | vc1_pred_dc (MpegEncContext *s, int overlap, int pq, int n, int a_avail, int c_avail, int16_t **dc_val_ptr, int *dir_ptr) |
Get predicted DC value prediction dir: left=0, top=1. | |
static int | vc1_coded_block_pred (MpegEncContext *s, int n, uint8_t **coded_block_ptr) |
static void | vc1_decode_ac_coeff (VC1Context *v, int *last, int *skip, int *value, int codingset) |
Decode one AC coefficient. | |
static int | vc1_decode_i_block (VC1Context *v, DCTELEM block[64], int n, int coded, int codingset) |
Decode intra block in intra frames - should be faster than decode_intra_block. | |
static int | vc1_decode_i_block_adv (VC1Context *v, DCTELEM block[64], int n, int coded, int codingset, int mquant) |
Decode intra block in intra frames - should be faster than decode_intra_block. | |
static int | vc1_decode_intra_block (VC1Context *v, DCTELEM block[64], int n, int coded, int mquant, int codingset) |
Decode intra block in inter frames - more generic version than vc1_decode_i_block. | |
static int | vc1_decode_p_block (VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block, uint8_t *dst, int linesize, int skip_block) |
Decode P block. | |
static int | vc1_decode_p_mb (VC1Context *v) |
Decode one P-frame MB (in Simple/Main profile). | |
static void | vc1_decode_b_mb (VC1Context *v) |
Decode one B-frame MB (in Main profile). | |
static void | vc1_decode_i_blocks (VC1Context *v) |
Decode blocks of I-frame. | |
static void | vc1_decode_i_blocks_adv (VC1Context *v) |
Decode blocks of I-frame for advanced profile. | |
static void | vc1_decode_p_blocks (VC1Context *v) |
static void | vc1_decode_b_blocks (VC1Context *v) |
static void | vc1_decode_skip_blocks (VC1Context *v) |
static void | vc1_decode_blocks (VC1Context *v) |
static av_always_inline const uint8_t * | find_next_marker (const uint8_t *src, const uint8_t *end) |
Find VC-1 marker in buffer. | |
static av_always_inline int | vc1_unescape_buffer (const uint8_t *src, int size, uint8_t *dst) |
static int | vc1_decode_init (AVCodecContext *avctx) |
Initialize a VC1/WMV3 decoder. | |
static int | vc1_decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size) |
Decode a VC1/WMV3 frame. | |
static int | vc1_decode_end (AVCodecContext *avctx) |
Close a VC1/WMV3 decoder. | |
Variables | |
static const uint16_t | table_mb_intra [64][2] |
AVCodec | vc1_decoder |
AVCodec | wmv3_decoder |
Definition in file vc1.c.
static int decode_entry_point | ( | AVCodecContext * | avctx, | |
GetBitContext * | gb | |||
) | [static] |
static int decode_sequence_header | ( | AVCodecContext * | avctx, | |
GetBitContext * | gb | |||
) | [static] |
Decode Simple/Main Profiles sequence header.
avctx | Codec context | |
gb | GetBit context initialized from Codec context extra_data |
Definition at line 767 of file vc1.c.
Referenced by vc1_decode_init().
static int decode_sequence_header_adv | ( | VC1Context * | v, | |
GetBitContext * | gb | |||
) | [static] |
static int median4 | ( | int | a, | |
int | b, | |||
int | c, | |||
int | d | |||
) | [inline, static] |
static int vc1_init_common | ( | VC1Context * | v | ) | [static] |
Init VC-1 specific tables and VC1Context members.
v | The VC1Context to initialize |
Definition at line 52 of file vc1.c.
Referenced by vc1_decode_init().
static void vc1_mc_1mv | ( | VC1Context * | v, | |
int | dir | |||
) | [static] |
Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo.c.
Definition at line 390 of file vc1.c.
Referenced by vc1_b_mc(), and vc1_decode_p_mb().
static void vc1_mc_4mv_chroma | ( | VC1Context * | v | ) | [static] |
Do motion compensation for 4-MV macroblock - both chroma blocks.
Definition at line 626 of file vc1.c.
Referenced by vc1_decode_p_mb().
static void vc1_mc_4mv_luma | ( | VC1Context * | v, | |
int | n | |||
) | [static] |
Do motion compensation for 4-MV macroblock - luminance block.
Definition at line 540 of file vc1.c.
Referenced by vc1_decode_p_mb().
static int vc1_parse_frame_header | ( | VC1Context * | v, | |
GetBitContext * | gb | |||
) | [static] |
static int vc1_parse_frame_header_adv | ( | VC1Context * | v, | |
GetBitContext * | gb | |||
) | [static] |
static void vc1_put_block | ( | VC1Context * | v, | |
DCTELEM | block[6][64] | |||
) | [static] |
Put block onto picture.
Definition at line 356 of file vc1.c.
Referenced by vc1_decode_i_blocks(), and vc1_decode_i_blocks_adv().
static int vop_dquant_decoding | ( | VC1Context * | v | ) | [static] |
VOP Dquant decoding.
v | VC-1 Context |
Definition at line 313 of file vc1.c.
Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().
const uint16_t table_mb_intra[64][2] [static] |