76 int motion_x,
int motion_y,
int h)
80 int dxy, offset, mx, my, src_x, src_y, v_edge_pos, linesize, uvlinesize;
83 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
85 src_x = s->
mb_x * 16 + (motion_x >> 1);
86 src_y = s->
mb_y * 16 + (motion_y >> 1);
90 src_x = av_clip(src_x, -16, s->
width);
91 src_y = av_clip(src_y, -16, s->
height);
93 if(src_x<=-16 || src_x >= s->
width)
95 if(src_y<=-16 || src_y >= s->
height)
100 ptr = ref_picture[0] + (src_y * linesize) + src_x;
103 if(src_x<1 || src_y<1 || src_x + 17 >= s->
h_edge_pos
104 || src_y + h+1 >= v_edge_pos){
121 if ((motion_x & 3) != 0)
123 if ((motion_y & 3) != 0)
130 dxy = ((my & 1) << 1) | (mx & 1);
135 src_x = s->
mb_x * 8 + mx;
136 src_y = s->
mb_y * 8 + my;
137 src_x = av_clip(src_x, -8, s->
width >> 1);
138 if (src_x == (s->
width >> 1))
140 src_y = av_clip(src_y, -8, s->
height >> 1);
141 if (src_y == (s->
height >> 1))
143 offset = (src_y * uvlinesize) + src_x;
144 ptr = ref_picture[1] + offset;
150 pix_op[1][dxy](dest_cb, ptr, uvlinesize, h >> 1);
152 ptr = ref_picture[2] + offset;
158 pix_op[1][dxy](dest_cr, ptr, uvlinesize, h >> 1);
void(* idct_add)(uint8_t *dest, int line_size, DCTELEM *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
DCTELEM abt_block2[6][64]
void(* emulated_edge_mc)(uint8_t *buf, const uint8_t *src, ptrdiff_t linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
enum OutputFormat out_format
output format
void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block1[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)
uint8_t idct_permutation[64]
idct input permutation.
qpel_mc_func put_mspel_pixels_tab[8]
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
void av_log(void *avcl, int level, const char *fmt,...)
static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n)
#define CODEC_FLAG_EMU_EDGE
void(* clear_block)(DCTELEM *block)
const uint8_t ff_wmv2_scantableB[64]
void ff_simple_idct84_add(uint8_t *dest, int line_size, DCTELEM *block)
static DCTELEM block1[64]
ScanTable abt_scantable[2]
int block_last_index[12]
last non zero coefficient in block
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, int line_size, int h)
const uint8_t ff_wmv2_scantableA[64]
int height
picture size. must be a multiple of 16
DSPContext dsp
pointers for accelerated dsp functions
struct AVCodecContext * avctx
void ff_mspel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h)
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable)
av_cold void ff_wmv2_common_init(Wmv2Context *w)
int linesize
line size, in bytes, may be different from width
int flags
AVCodecContext.flags (HQ, MV4, ...)
void ff_simple_idct48_add(uint8_t *dest, int line_size, DCTELEM *block)
int uvlinesize
line size, for chroma in bytes, may be different from width