35 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3,
36 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20,
37 22, 24, 26, 28, 30, 33, 33, 35, 35, 36, 37, 37, 39, 39, 42, 44,
38 46, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
42 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
43 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6,
44 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14,
45 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27
49 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
50 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
51 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4,
52 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9
74 if ((abs(mvP->
x - mvQ->
x) >= 4) || (abs(mvP->
y - mvQ->
y) >= 4))
79 if ((abs(mvP->
x - mvQ->
x) >= 4) || (abs(mvP->
y - mvQ->
y) >= 4))
89 alpha = alpha_tab[av_clip(qp_avg + h->alpha_offset, 0, 63)]; \
90 beta = beta_tab[av_clip(qp_avg + h->beta_offset, 0, 63)]; \
91 tc = tc_tab[av_clip(qp_avg + h->alpha_offset, 0, 63)];
108 int qp_avg, alpha, beta, tc;
118 for (i = 0; i < 8; i++) {
126 if (mb_type ==
I_8X8)
195 for (i = 0; i < 8; i++)
203 memset(&top[9], top[8], 9);
219 for (i = 0; i < 8; i++)
222 memcpy(&top[0], h->
cy + 7 + 7 * h->
l_stride, 9);
223 memset(&top[9], top[8], 9);
250 for (y = 0; y < 8; y++) {
251 *((uint64_t *)(d + y * stride)) = a;
259 for (y = 0; y < 8; y++) {
260 a = left[y + 1] * 0x0101010101010101ULL;
261 *((uint64_t *)(d + y * stride)) = a;
268 uint64_t
a = 0x8080808080808080ULL;
269 for (y = 0; y < 8; y++)
270 *((uint64_t *)(d + y * stride)) =
a;
280 for (x = 0; x < 4; x++) {
281 ih += (x + 1) * (top [5 + x] - top [3 - x]);
282 iv += (x + 1) * (left[5 + x] - left[3 - x]);
284 ia = (top[8] + left[8]) << 4;
285 ih = (17 * ih + 16) >> 5;
286 iv = (17 * iv + 16) >> 5;
287 for (y = 0; y < 8; y++)
288 for (x = 0; x < 8; x++)
289 d[y * stride + x] = cm[(ia + (x - 3) * ih + (y - 3) * iv + 16) >> 5];
292 #define LOWPASS(ARRAY,INDEX) \
293 ((ARRAY[(INDEX) - 1] + 2 * ARRAY[(INDEX)] + ARRAY[(INDEX) + 1] + 2) >> 2)
298 for (y = 0; y < 8; y++)
299 for (x = 0; x < 8; x++)
300 d[y * stride + x] = (
LOWPASS(top, x + 1) +
LOWPASS(left, y + 1)) >> 1;
306 for (y = 0; y < 8; y++)
307 for (x = 0; x < 8; x++)
308 d[y * stride + x] = (
LOWPASS(top, x + y + 2) +
LOWPASS(left, x + y + 2)) >> 1;
314 for (y = 0; y < 8; y++)
315 for (x = 0; x < 8; x++)
317 d[y * stride + x] = (left[1] + 2 * top[0] + top[1] + 2) >> 2;
319 d[y * stride + x] =
LOWPASS(top, x - y);
321 d[y * stride + x] =
LOWPASS(left, y - x);
327 for (y = 0; y < 8; y++)
328 for (x = 0; x < 8; x++)
329 d[y * stride + x] =
LOWPASS(left, y + 1);
335 for (y = 0; y < 8; y++)
336 for (x = 0; x < 8; x++)
337 d[y * stride + x] =
LOWPASS(top, x + 1);
342 static inline void modify_pred(
const int8_t *mod_table,
int *mode)
344 *mode = mod_table[*mode];
384 const int mx= mv->
x + src_x_offset*8;
385 const int my= mv->
y + src_y_offset*8;
386 const int luma_xy= (mx&3) + ((my&3)<<2);
391 int extra_height= extra_width;
393 const int full_mx= mx>>2;
394 const int full_my= my>>2;
395 const int pic_width = 16*h->
mb_width;
400 if(mx&7) extra_width -= 3;
401 if(my&7) extra_height -= 3;
403 if( full_mx < 0-extra_width
404 || full_my < 0-extra_height
405 || full_mx + 16 > pic_width + extra_width
406 || full_my + 16 > pic_height + extra_height){
408 16+5, 16+5, full_mx-2, full_my-2, pic_width, pic_height);
413 qpix_op[luma_xy](dest_y, src_y, h->
l_stride);
417 9, 9, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
420 chroma_op(dest_cb, src_cb, h->
c_stride, chroma_height, mx&7, my&7);
424 9, 9, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
427 chroma_op(dest_cr, src_cr, h->
c_stride, chroma_height, mx&7, my&7);
439 dest_y += 2*x_offset + 2*y_offset*h->
l_stride;
440 dest_cb += x_offset + y_offset*h->
c_stride;
441 dest_cr += x_offset + y_offset*h->
c_stride;
442 x_offset += 8*h->
mbx;
443 y_offset += 8*h->
mby;
448 dest_y, dest_cb, dest_cr, x_offset, y_offset,
449 qpix_op, chroma_op, mv);
452 chroma_op= chroma_avg;
458 dest_y, dest_cb, dest_cr, x_offset, y_offset,
503 *d_x = (src->
x*distp*den + 256 + (src->
x>>31)) >> 9;
504 *d_y = (src->
y*distp*den + 256 + (src->
y>>31)) >> 9;
509 int ax, ay, bx, by, cx, cy;
510 int len_ab, len_bc, len_ca, len_mid;
517 len_ab = abs(ax - bx) + abs(ay - by);
518 len_bc = abs(bx - cx) + abs(by - cy);
519 len_ca = abs(cx - ax) + abs(cy - ay);
520 len_mid =
mid_pred(len_ab, len_bc, len_ca);
521 if(len_mid == len_ab) {
524 }
else if(len_mid == len_bc) {
547 ((mvA->
x | mvA->
y | mvA->
ref) == 0) ||
548 ((mvB->
x | mvB->
y | mvB->
ref) == 0) )) {
551 }
else if((mvA->
ref >= 0) && (mvB->
ref < 0) && (mvC->
ref < 0)) {
553 }
else if((mvA->
ref < 0) && (mvB->
ref >= 0) && (mvC->
ref < 0)) {
555 }
else if((mvA->
ref < 0) && (mvB->
ref < 0) && (mvC->
ref >= 0)) {
635 h->
mv[i] = h->
mv[i+2];
void(* intra_pred_c[7])(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
void ff_cavs_modify_mb_i(AVSContext *h, int *pred_mode_uv)
av_cold void ff_dsputil_init(DSPContext *c, AVCodecContext *avctx)
const uint8_t ff_zigzag_direct[64]
This structure describes decoded (raw) audio or video data.
uint8_t * edge_emu_buffer
static int get_se_golomb(GetBitContext *gb)
read signed exp golomb code.
void(* cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2)
static int get_bs(cavs_vector *mvP, cavs_vector *mvQ, int b)
static const int8_t left_modifier_c[7]
void(* release_buffer)(struct AVCodecContext *c, AVFrame *pic)
Called to release buffers which were allocated with get_buffer.
av_cold int ff_cavs_end(AVCodecContext *avctx)
int mbidx
macroblock coordinates
void(* cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2)
static void intra_pred_lp_top(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
void ff_cavs_init_mb(AVSContext *h)
initialise predictors for motion vectors and intra prediction
void(* cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2)
uint8_t intern_border_y[26]
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
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...
void(* qpel_mc_func)(uint8_t *dst, uint8_t *src, int stride)
h264_chroma_mc_func avg_h264_chroma_pixels_tab[3]
static const int8_t left_modifier_l[8]
uint8_t * top_border_y
intra prediction is done with un-deblocked samples they are saved here before deblocking the MB ...
av_cold void ff_cavsdsp_init(CAVSDSPContext *c, AVCodecContext *avctx)
cavs_vector mv[2 *4 *3]
mv motion vector cache 0: D3 B2 B3 C2 4: A1 X0 X1 - 8: A3 X2 X3 -
static void intra_pred_plane(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
bitstream reader API header.
uint8_t idct_permutation[64]
idct input permutation.
void ff_cavs_filter(AVSContext *h, enum cavs_mb mb_type)
in-loop deblocking filter for a single macroblock
int dist[2]
temporal distances from current frame to ref frames
static void scale_mv(AVSContext *h, int *d_x, int *d_y, cavs_vector *src, int distp)
static void mv_pred_median(AVSContext *h, cavs_vector *mvP, cavs_vector *mvA, cavs_vector *mvB, cavs_vector *mvC)
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
int scale_den[2]
for scaling neighbouring MVs
AVSFrame cur
currently decoded frame
int ff_cavs_next_mb(AVSContext *h)
save predictors for later macroblocks and increase macroblock address
void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type)
static void intra_pred_dc_128(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
uint8_t left_border_y[26]
void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
void av_log(void *avcl, int level, const char *fmt,...)
static const uint8_t beta_tab[64]
void ff_cavs_load_intra_pred_luma(AVSContext *h, uint8_t *top, uint8_t **left, int block)
void(* h264_chroma_mc_func)(uint8_t *dst, uint8_t *src, int srcStride, int h, int x, int y)
static void intra_pred_lp_left(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
h264_chroma_mc_func put_h264_chroma_pixels_tab[3]
h264 Chroma MC
AVSFrame DPB[2]
reference frames
static const int8_t top_modifier_c[7]
uint8_t * cv
current MB sample pointers
AVFrame * avcodec_alloc_frame(void)
Allocate an AVFrame and set its fields to default values.
void ff_cavs_load_intra_pred_chroma(AVSContext *h)
static void intra_pred_horiz(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
void ff_cavs_init_pic(AVSContext *h)
qpel_mc_func put_cavs_qpel_pixels_tab[2][16]
av_cold int ff_cavs_init(AVCodecContext *avctx)
uint8_t left_border_u[10]
static const uint8_t tc_tab[64]
const uint8_t ff_cavs_partition_flags[30]
void ff_cavs_init_top_lines(AVSContext *h)
some predictions require data from the top-neighbouring macroblock.
void(* intra_pred_l[8])(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
const cavs_vector ff_cavs_dir_mv
mark block as "no prediction from this direction" e.g.
uint8_t left_border_v[10]
void ff_cavs_mv(AVSContext *h, enum cavs_mv_loc nP, enum cavs_mv_loc nC, enum cavs_mv_pred mode, enum cavs_block size, int ref)
static void modify_pred(const int8_t *mod_table, int *mode)
static const int8_t mv[256][2]
static void intra_pred_lp(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
int linesize[AV_NUM_DATA_POINTERS]
Size, in bytes, of the data for each picture/channel plane.
main external API structure.
static void mc_dir_part(AVSContext *h, AVFrame *pic, int chroma_height, int delta, int list, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int src_x_offset, int src_y_offset, qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op, cavs_vector *mv)
int pred_mode_Y[3 *3]
luma pred mode cache 0: – B2 B3 3: A1 X0 X1 6: A3 X2 X3
static void intra_pred_down_left(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
qpel_mc_func avg_cavs_qpel_pixels_tab[2][16]
void ff_init_scantable_permutation(uint8_t *idct_permutation, int idct_permutation_type)
#define LOWPASS(ARRAY, INDEX)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static const int8_t top_modifier_l[8]
int flags
availability flags of neighbouring macroblocks
static void intra_pred_vert(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
static void intra_pred_down_right(uint8_t *d, uint8_t *top, uint8_t *left, int stride)
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable)
void avcodec_free_frame(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
static const cavs_vector un_mv
mark block as unavailable, i.e.
static void set_mvs(cavs_vector *mv, enum cavs_block size)
void(* cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2)
static const uint8_t alpha_tab[64]
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
static void mc_part_std(AVSContext *h, int chroma_height, int delta, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int x_offset, int y_offset, qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, cavs_vector *mv)