#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "golomb.h"
#include "mathops.h"
#include "rectangle.h"
#include "rv34vlc.h"
#include "rv34data.h"
#include "rv34.h"
Go to the source code of this file.
Functions | |
static void | ZERO8x2 (void *dst, int stride) |
static void | rv34_apply_differences (RV34DecContext *r, int cbp) |
static int | is_mv_diff_gt_3 (int16_t(*motion_val)[2], int step) |
static int | rv34_set_deblock_coef (RV34DecContext *r) |
static int | rv34_decode_macroblock (RV34DecContext *r, int8_t *intra_types) |
static int | check_slice_end (RV34DecContext *r, MpegEncContext *s) |
static int | rv34_decode_slice (RV34DecContext *r, int end, const uint8_t *buf, int buf_size) |
av_cold int | ff_rv34_decode_init (AVCodecContext *avctx) |
Initialize decoder. | |
static int | get_slice_offset (AVCodecContext *avctx, const uint8_t *buf, int n) |
int | ff_rv34_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) |
av_cold int | ff_rv34_decode_end (AVCodecContext *avctx) |
RV30/40 4x4 block decoding functions | |
static int | rv34_decode_cbp (GetBitContext *gb, RV34VLC *vlc, int table) |
Decode coded block pattern. | |
static void | decode_coeff (DCTELEM *dst, int coef, int esc, GetBitContext *gb, VLC *vlc) |
Get one coefficient value from the bistream and store it. | |
static void | decode_subblock (DCTELEM *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc) |
Decode 2x2 subblock of coefficients. | |
static void | rv34_decode_block (DCTELEM *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc) |
Decode coefficients for 4x4 block. | |
static void | rv34_dequant4x4 (DCTELEM *block, int Qdc, int Q) |
Dequantize ordinary 4x4 block. | |
static void | rv34_dequant4x4_16x16 (DCTELEM *block, int Qdc, int Q) |
Dequantize 4x4 block of DC values for 16x16 macroblock. | |
RV30/40 bitstream parsing | |
int | ff_rv34_get_start_offset (GetBitContext *gb, int mb_size) |
Decode starting slice position. | |
static RV34VLC * | choose_vlc_set (int quant, int mod, int type) |
Select VLC set for decoding from current quantizer, modifier and frame type. | |
static int | rv34_decode_mb_header (RV34DecContext *r, int8_t *intra_types) |
Decode macroblock header and return CBP in case of success, -1 otherwise. | |
Variables | |
static const int | rv34_mb_type_to_lavc [12] |
translation of RV30/40 macroblock types to lavc ones | |
static RV34VLC | intra_vlcs [NUM_INTRA_TABLES] |
static RV34VLC | inter_vlcs [NUM_INTER_TABLES] |
motion vector related code (prediction, reconstruction, motion compensation) | |
#define | GET_PTS_DIFF(a, b) ((a - b + 8192) & 0x1FFF) |
static const uint8_t | part_sizes_w [RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2 } |
macroblock partition width in 8x8 blocks | |
static const uint8_t | part_sizes_h [RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2 } |
macroblock partition height in 8x8 blocks | |
static const uint8_t | avail_indexes [4] = { 6, 7, 10, 11 } |
availability index for subblocks | |
static const int | chroma_coeffs [3] = { 0, 3, 5 } |
static const int | num_mvs [RV34_MB_TYPES] = { 0, 0, 1, 4, 1, 1, 0, 0, 2, 2, 2, 1 } |
number of motion vectors in each macroblock type | |
static int | rv34_decode_mv (RV34DecContext *r, int block_type) |
Decode motion vector differences and perform motion vector reconstruction and motion compensation. | |
static void | rv34_pred_mv (RV34DecContext *r, int block_type, int subblock_no, int dmv_no) |
motion vector prediction | |
static int | calc_add_mv (RV34DecContext *r, int dir, int val) |
Calculate motion vector component that should be added for direct blocks. | |
static void | rv34_pred_b_vector (int A[2], int B[2], int C[2], int A_avail, int B_avail, int C_avail, int *mx, int *my) |
Predict motion vector for B-frame macroblock. | |
static void | rv34_pred_mv_b (RV34DecContext *r, int block_type, int dir) |
motion vector prediction for B-frames | |
static void | rv34_pred_mv_rv3 (RV34DecContext *r, int block_type, int dir) |
motion vector prediction - RV3 version | |
static void | rv34_mc (RV34DecContext *r, const int block_type, const int xoff, const int yoff, int mv_off, const int width, const int height, int dir, const int thirdpel, int weighted, qpel_mc_func(*qpel_mc)[16], h264_chroma_mc_func(*chroma_mc)) |
generic motion compensation function | |
static void | rv34_mc_1mv (RV34DecContext *r, const int block_type, const int xoff, const int yoff, int mv_off, const int width, const int height, int dir) |
static void | rv4_weight (RV34DecContext *r) |
static void | rv34_mc_2mv (RV34DecContext *r, const int block_type) |
static void | rv34_mc_2mv_skip (RV34DecContext *r) |
Macroblock reconstruction functions | |
#define | LUMA_CBP_BLOCK_MASK 0x33 |
mask for retrieving all bits in coded block pattern corresponding to one 8x8 block | |
#define | U_CBP_MASK 0x0F0000 |
#define | V_CBP_MASK 0xF00000 |
static const int | ittrans [9] |
mapping of RV30/40 intra prediction types to standard H.264 types | |
static const int | ittrans16 [4] |
mapping of RV30/40 intra 16x16 prediction types to standard H.264 types | |
static void | rv34_pred_4x4_block (RV34DecContext *r, uint8_t *dst, int stride, int itype, int up, int left, int down, int right) |
Perform 4x4 intra prediction. | |
static void | rv34_add_4x4_block (uint8_t *dst, int stride, DCTELEM block[64], int off) |
add_pixels_clamped for 4x4 block | |
static int | adjust_pred16 (int itype, int up, int left) |
static void | rv34_output_macroblock (RV34DecContext *r, int8_t *intra_types, int cbp, int is16) |
RV30/40 VLC generating functions | |
static const int | table_offs [] |
static VLC_TYPE | table_data [117592][2] |
static void | rv34_gen_vlc (const uint8_t *bits, int size, VLC *vlc, const uint8_t *insyms, const int num) |
Generate VLC from codeword lengths. | |
static av_cold void | rv34_init_tables (void) |
Initialize all tables. |
Definition in file rv34.c.
#define GET_PTS_DIFF | ( | a, | |||
b | ) | ((a - b + 8192) & 0x1FFF) |
#define LUMA_CBP_BLOCK_MASK 0x33 |
mask for retrieving all bits in coded block pattern corresponding to one 8x8 block
Definition at line 1045 of file rv34.c.
Referenced by rv34_apply_differences().
#define U_CBP_MASK 0x0F0000 |
#define V_CBP_MASK 0xF00000 |
static int adjust_pred16 | ( | int | itype, | |
int | up, | |||
int | left | |||
) | [inline, static] |
static int calc_add_mv | ( | RV34DecContext * | r, | |
int | dir, | |||
int | val | |||
) | [static] |
Calculate motion vector component that should be added for direct blocks.
Definition at line 493 of file rv34.c.
Referenced by rv34_decode_mv().
static int check_slice_end | ( | RV34DecContext * | r, | |
MpegEncContext * | s | |||
) | [static] |
static RV34VLC* choose_vlc_set | ( | int | quant, | |
int | mod, | |||
int | type | |||
) | [inline, static] |
Select VLC set for decoding from current quantizer, modifier and frame type.
Definition at line 342 of file rv34.c.
Referenced by rv34_decode_macroblock(), and rv34_decode_mb_header().
static void decode_coeff | ( | DCTELEM * | dst, | |
int | coef, | |||
int | esc, | |||
GetBitContext * | gb, | |||
VLC * | vlc | |||
) | [inline, static] |
Get one coefficient value from the bistream and store it.
Definition at line 215 of file rv34.c.
Referenced by decode_subblock().
static void decode_subblock | ( | DCTELEM * | dst, | |
int | code, | |||
const int | is_block2, | |||
GetBitContext * | gb, | |||
VLC * | vlc | |||
) | [inline, static] |
Decode 2x2 subblock of coefficients.
Definition at line 235 of file rv34.c.
Referenced by rv34_decode_block().
av_cold int ff_rv34_decode_end | ( | AVCodecContext * | avctx | ) |
int ff_rv34_decode_frame | ( | AVCodecContext * | avctx, | |
void * | data, | |||
int * | data_size, | |||
AVPacket * | avpkt | |||
) |
av_cold int ff_rv34_decode_init | ( | AVCodecContext * | avctx | ) |
Initialize decoder.
Definition at line 1328 of file rv34.c.
Referenced by rv30_decode_init(), and rv40_decode_init().
int ff_rv34_get_start_offset | ( | GetBitContext * | gb, | |
int | mb_size | |||
) |
Decode starting slice position.
common decoding functions
Definition at line 330 of file rv34.c.
Referenced by rv30_parse_slice_header(), and rv40_parse_slice_header().
static int get_slice_offset | ( | AVCodecContext * | avctx, | |
const uint8_t * | buf, | |||
int | n | |||
) | [static] |
static int is_mv_diff_gt_3 | ( | int16_t(*) | motion_val[2], | |
int | step | |||
) | [static] |
static void rv34_add_4x4_block | ( | uint8_t * | dst, | |
int | stride, | |||
DCTELEM | block[64], | |||
int | off | |||
) | [static] |
add_pixels_clamped for 4x4 block
Definition at line 944 of file rv34.c.
Referenced by rv34_output_macroblock().
static void rv34_apply_differences | ( | RV34DecContext * | r, | |
int | cbp | |||
) | [static] |
static void rv34_decode_block | ( | DCTELEM * | dst, | |
GetBitContext * | gb, | |||
RV34VLC * | rvlc, | |||
int | fc, | |||
int | sc | |||
) | [inline, static] |
Decode coefficients for 4x4 block.
This is done by filling 2x2 subblocks with decoded coefficients in this order (the same for subblocks and subblock coefficients): o--o / / o--o
Definition at line 265 of file rv34.c.
Referenced by rv34_decode_macroblock().
static int rv34_decode_cbp | ( | GetBitContext * | gb, | |
RV34VLC * | vlc, | |||
int | table | |||
) | [static] |
Decode coded block pattern.
Definition at line 182 of file rv34.c.
Referenced by rv34_decode_mb_header().
static int rv34_decode_macroblock | ( | RV34DecContext * | r, | |
int8_t * | intra_types | |||
) | [static] |
static int rv34_decode_mb_header | ( | RV34DecContext * | r, | |
int8_t * | intra_types | |||
) | [static] |
Decode macroblock header and return CBP in case of success, -1 otherwise.
Definition at line 353 of file rv34.c.
Referenced by rv34_decode_macroblock().
static int rv34_decode_mv | ( | RV34DecContext * | r, | |
int | block_type | |||
) | [static] |
Decode motion vector differences and perform motion vector reconstruction and motion compensation.
Definition at line 811 of file rv34.c.
Referenced by rv34_decode_mb_header().
static int rv34_decode_slice | ( | RV34DecContext * | r, | |
int | end, | |||
const uint8_t * | buf, | |||
int | buf_size | |||
) | [static] |
static void rv34_dequant4x4 | ( | DCTELEM * | block, | |
int | Qdc, | |||
int | Q | |||
) | [inline, static] |
Dequantize ordinary 4x4 block.
Definition at line 295 of file rv34.c.
Referenced by rv34_decode_macroblock().
static void rv34_dequant4x4_16x16 | ( | DCTELEM * | block, | |
int | Qdc, | |||
int | Q | |||
) | [inline, static] |
Dequantize 4x4 block of DC values for 16x16 macroblock.
Definition at line 309 of file rv34.c.
Referenced by rv34_decode_macroblock().
static void rv34_gen_vlc | ( | const uint8_t * | bits, | |
int | size, | |||
VLC * | vlc, | |||
const uint8_t * | insyms, | |||
const int | num | |||
) | [static] |
Generate VLC from codeword lengths.
bits | codeword lengths (zeroes are accepted) | |
size | length of input data | |
vlc | output VLC | |
insyms | symbols for input codes (NULL for default ones) | |
num | VLC table number (for static initialization) |
Definition at line 103 of file rv34.c.
Referenced by rv34_init_tables().
static av_cold void rv34_init_tables | ( | void | ) | [static] |
static void rv34_mc | ( | RV34DecContext * | r, | |
const int | block_type, | |||
const int | xoff, | |||
const int | yoff, | |||
int | mv_off, | |||
const int | width, | |||
const int | height, | |||
int | dir, | |||
const int | thirdpel, | |||
int | weighted, | |||
qpel_mc_func(*) | qpel_mc[16], | |||
h264_chroma_mc_func * | chroma_mc | |||
) | [inline, static] |
generic motion compensation function
r | decoder context | |
block_type | type of the current block | |
xoff | horizontal offset from the start of the current block | |
yoff | vertical offset from the start of the current block | |
mv_off | offset to the motion vector information | |
width | width of the current partition in 8x8 blocks | |
height | height of the current partition in 8x8 blocks | |
dir | motion compensation direction (i.e. from the last or the next reference frame) | |
thirdpel | motion vectors are specified in 1/3 of pixel | |
qpel_mc | a set of functions used to perform luma motion compensation | |
chroma_mc | a set of functions used to perform chroma motion compensation |
Definition at line 641 of file rv34.c.
Referenced by rv34_mc_1mv(), rv34_mc_2mv(), and rv34_mc_2mv_skip().
static void rv34_mc_1mv | ( | RV34DecContext * | r, | |
const int | block_type, | |||
const int | xoff, | |||
const int | yoff, | |||
int | mv_off, | |||
const int | width, | |||
const int | height, | |||
int | dir | |||
) | [static] |
static void rv34_mc_2mv | ( | RV34DecContext * | r, | |
const int | block_type | |||
) | [static] |
static void rv34_mc_2mv_skip | ( | RV34DecContext * | r | ) | [static] |
static void rv34_output_macroblock | ( | RV34DecContext * | r, | |
int8_t * | intra_types, | |||
int | cbp, | |||
int | is16 | |||
) | [static] |
static void rv34_pred_4x4_block | ( | RV34DecContext * | r, | |
uint8_t * | dst, | |||
int | stride, | |||
int | itype, | |||
int | up, | |||
int | left, | |||
int | down, | |||
int | right | |||
) | [static] |
Perform 4x4 intra prediction.
Definition at line 916 of file rv34.c.
Referenced by rv34_output_macroblock().
static void rv34_pred_b_vector | ( | int | A[2], | |
int | B[2], | |||
int | C[2], | |||
int | A_avail, | |||
int | B_avail, | |||
int | C_avail, | |||
int * | mx, | |||
int * | my | |||
) | [inline, static] |
Predict motion vector for B-frame macroblock.
Definition at line 503 of file rv34.c.
Referenced by rv34_pred_mv_b().
static void rv34_pred_mv | ( | RV34DecContext * | r, | |
int | block_type, | |||
int | subblock_no, | |||
int | dmv_no | |||
) | [static] |
motion vector prediction
Motion prediction performed for the block by using median prediction of motion vectors from the left, top and right top blocks but in corner cases some other vectors may be used instead.
Definition at line 439 of file rv34.c.
Referenced by rv34_decode_mv().
static void rv34_pred_mv_b | ( | RV34DecContext * | r, | |
int | block_type, | |||
int | dir | |||
) | [static] |
motion vector prediction for B-frames
Definition at line 523 of file rv34.c.
Referenced by rv34_decode_mv().
static void rv34_pred_mv_rv3 | ( | RV34DecContext * | r, | |
int | block_type, | |||
int | dir | |||
) | [static] |
motion vector prediction - RV3 version
Definition at line 578 of file rv34.c.
Referenced by rv34_decode_mv().
static int rv34_set_deblock_coef | ( | RV34DecContext * | r | ) | [static] |
static void rv4_weight | ( | RV34DecContext * | r | ) | [static] |
static void ZERO8x2 | ( | void * | dst, | |
int | stride | |||
) | [inline, static] |
const uint8_t avail_indexes[4] = { 6, 7, 10, 11 } [static] |
availability index for subblocks
Definition at line 430 of file rv34.c.
Referenced by rv34_pred_mv(), and rv34_pred_mv_rv3().
const int chroma_coeffs[3] = { 0, 3, 5 } [static] |
RV34VLC inter_vlcs[NUM_INTER_TABLES] [static] |
RV34VLC intra_vlcs[NUM_INTRA_TABLES] [static] |
const int ittrans[9] [static] |
Initial value:
{ DC_PRED, VERT_PRED, HOR_PRED, DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_LEFT_PRED, VERT_RIGHT_PRED, VERT_LEFT_PRED, HOR_UP_PRED, HOR_DOWN_PRED, }
const int ittrans16[4] [static] |
Initial value:
mapping of RV30/40 intra 16x16 prediction types to standard H.264 types
const int num_mvs[RV34_MB_TYPES] = { 0, 0, 1, 4, 1, 1, 0, 0, 2, 2, 2, 1 } [static] |
number of motion vectors in each macroblock type
Definition at line 805 of file rv34.c.
Referenced by tgv_decode_inter().
const uint8_t part_sizes_h[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2 } [static] |
macroblock partition height in 8x8 blocks
Definition at line 427 of file rv34.c.
Referenced by rv34_pred_mv().
const uint8_t part_sizes_w[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2 } [static] |
macroblock partition width in 8x8 blocks
Definition at line 424 of file rv34.c.
Referenced by rv34_pred_mv().
const int rv34_mb_type_to_lavc[12] [static] |
Initial value:
{ MB_TYPE_INTRA, MB_TYPE_INTRA16x16 | MB_TYPE_SEPARATE_DC, MB_TYPE_16x16 | MB_TYPE_L0, MB_TYPE_8x8 | MB_TYPE_L0, MB_TYPE_16x16 | MB_TYPE_L0, MB_TYPE_16x16 | MB_TYPE_L1, MB_TYPE_SKIP, MB_TYPE_DIRECT2 | MB_TYPE_16x16, MB_TYPE_16x8 | MB_TYPE_L0, MB_TYPE_8x16 | MB_TYPE_L0, MB_TYPE_16x16 | MB_TYPE_L0L1, MB_TYPE_16x16 | MB_TYPE_L0 | MB_TYPE_SEPARATE_DC }
Definition at line 47 of file rv34.c.
Referenced by rv34_decode_mb_header().
VLC_TYPE table_data[117592][2] [static] |
const int table_offs[] [static] |
Initial value:
{ 0, 1818, 3622, 4144, 4698, 5234, 5804, 5868, 5900, 5932, 5996, 6252, 6316, 6348, 6380, 7674, 8944, 10274, 11668, 12250, 14060, 15846, 16372, 16962, 17512, 18148, 18180, 18212, 18244, 18308, 18564, 18628, 18660, 18692, 20036, 21314, 22648, 23968, 24614, 26384, 28190, 28736, 29366, 29938, 30608, 30640, 30672, 30704, 30768, 31024, 31088, 31120, 31184, 32570, 33898, 35236, 36644, 37286, 39020, 40802, 41368, 42052, 42692, 43348, 43380, 43412, 43444, 43476, 43604, 43668, 43700, 43732, 45100, 46430, 47778, 49160, 49802, 51550, 53340, 53972, 54648, 55348, 55994, 56122, 56154, 56186, 56218, 56346, 56410, 56442, 56474, 57878, 59290, 60636, 62036, 62682, 64460, 64524, 64588, 64716, 64844, 66076, 67466, 67978, 68542, 69064, 69648, 70296, 72010, 72074, 72138, 72202, 72330, 73572, 74936, 75454, 76030, 76566, 77176, 77822, 79582, 79646, 79678, 79742, 79870, 81180, 82536, 83064, 83672, 84242, 84934, 85576, 87384, 87448, 87480, 87544, 87672, 88982, 90340, 90902, 91598, 92182, 92846, 93488, 95246, 95278, 95310, 95374, 95502, 96878, 98266, 98848, 99542, 100234, 100884, 101524, 103320, 103352, 103384, 103416, 103480, 104874, 106222, 106910, 107584, 108258, 108902, 109544, 111366, 111398, 111430, 111462, 111494, 112878, 114320, 114988, 115660, 116310, 116950, 117592 }
Definition at line 72 of file rv34.c.
Referenced by rv34_gen_vlc().