39 int src_x,
int src_y,
int src_stride,
slice_buffer * sb,
int add, uint8_t * dst8){
44 const uint8_t *obmc1= obmc + y*obmc_stride;
45 const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
46 const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
47 const uint8_t *
obmc4= obmc3+ (obmc_stride>>1);
50 int v= obmc1[x] * block[3][x + y*src_stride]
51 +obmc2[x] * block[2][x + y*src_stride]
52 +obmc3[x] * block[1][x + y*src_stride]
53 +obmc4[x] * block[0][x + y*src_stride];
62 if(v&(~255)) v= ~(v>>31);
63 dst8[x + y*src_stride] =
v;
72 int plane_index,
level, orientation;
74 for(plane_index=0; plane_index<3; plane_index++){
76 for(orientation=level ? 1:0; orientation<4; orientation++){
101 for(i=0; i<
QROOT; i++){
103 v *= pow(2, 1.0 / QROOT);
106 static void mc_block(
Plane *p, uint8_t *dst,
const uint8_t *src,
int stride,
int b_w,
int b_h,
int dx,
int dy){
107 static const uint8_t weight[64]={
118 static const uint8_t brane[256]={
119 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
120 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52,
121 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc,
122 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc,
123 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc,
124 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc,
125 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc,
126 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16,
127 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56,
128 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96,
129 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc,
130 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc,
131 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc,
132 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc,
133 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc,
134 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A,
137 static const uint8_t needs[16]={
147 int16_t *tmpI= tmpIt;
148 uint8_t *tmp2= tmp2t[0];
149 const uint8_t *hpel[11];
150 assert(dx<16 && dy<16);
151 r= brane[dx + 16*dy]&15;
152 l= brane[dx + 16*dy]>>4;
154 b= needs[l] | needs[
r];
160 for(x=0; x < b_w; x++){
161 int a_1=src[x + HTAPS_MAX/2-4];
162 int a0= src[x + HTAPS_MAX/2-3];
163 int a1= src[x + HTAPS_MAX/2-2];
164 int a2= src[x + HTAPS_MAX/2-1];
165 int a3= src[x + HTAPS_MAX/2+0];
166 int a4= src[x + HTAPS_MAX/2+1];
167 int a5= src[x + HTAPS_MAX/2+2];
168 int a6= src[x + HTAPS_MAX/2+3];
171 am= 20*(a2+
a3) - 5*(a1+a4) + (a0+
a5);
180 if(am&(~255)) am= ~(am>>31);
193 for(y=0; y < b_h; y++){
194 for(x=0; x < b_w+1; x++){
205 am= (20*(a2+
a3) - 5*(a1+a4) + (a0+
a5) + 16)>>5;
209 if(am&(~255)) am= ~(am>>31);
221 for(y=0; y < b_h; y++){
222 for(x=0; x < b_w; x++){
233 am= (20*(a2+
a3) - 5*(a1+a4) + (a0+
a5) + 512)>>10;
236 if(am&(~255)) am= ~(am>>31);
245 hpel[ 1]= tmp2t[0] + stride*(
HTAPS_MAX/2-1);
250 hpel[ 6]= tmp2t[1] + 1;
253 hpel[ 9]= hpel[1] +
stride;
254 hpel[10]= hpel[8] + 1;
257 const uint8_t *src1= hpel[dx/8 + dy/8*4 ];
258 const uint8_t *src2= hpel[dx/8 + dy/8*4+1];
259 const uint8_t *src3= hpel[dx/8 + dy/8*4+4];
260 const uint8_t *src4= hpel[dx/8 + dy/8*4+5];
263 for(y=0; y < b_h; y++){
264 for(x=0; x < b_w; x++){
265 dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+
266 (8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6;
275 const uint8_t *src1= hpel[l];
276 const uint8_t *src2= hpel[
r];
277 int a= weight[((dx&7) + (8*(dy&7)))];
279 for(y=0; y < b_h; y++){
280 for(x=0; x < b_w; x++){
281 dst[x]= (a*src1[x] + b*src2[x] + 4)>>3;
290 void ff_snow_pred_block(
SnowContext *s, uint8_t *dst, uint8_t *tmp,
int stride,
int sx,
int sy,
int b_w,
int b_h,
BlockNode *
block,
int plane_index,
int w,
int h){
293 const unsigned color = block->
color[plane_index];
294 const unsigned color4 = color*0x01010101;
296 for(y=0; y < b_h; y++){
297 *(uint32_t*)&dst[0 + y*stride]= color4;
298 *(uint32_t*)&dst[4 + y*stride]= color4;
299 *(uint32_t*)&dst[8 + y*stride]= color4;
300 *(uint32_t*)&dst[12+ y*stride]= color4;
301 *(uint32_t*)&dst[16+ y*stride]= color4;
302 *(uint32_t*)&dst[20+ y*stride]= color4;
303 *(uint32_t*)&dst[24+ y*stride]= color4;
304 *(uint32_t*)&dst[28+ y*stride]= color4;
307 for(y=0; y < b_h; y++){
308 *(uint32_t*)&dst[0 + y*stride]= color4;
309 *(uint32_t*)&dst[4 + y*stride]= color4;
310 *(uint32_t*)&dst[8 + y*stride]= color4;
311 *(uint32_t*)&dst[12+ y*stride]= color4;
314 for(y=0; y < b_h; y++){
315 *(uint32_t*)&dst[0 + y*stride]= color4;
316 *(uint32_t*)&dst[4 + y*stride]= color4;
319 for(y=0; y < b_h; y++){
320 *(uint32_t*)&dst[0 + y*stride]= color4;
323 for(y=0; y < b_h; y++){
324 for(x=0; x < b_w; x++){
336 const int tab_index= 3 - (b_w>>2) + (b_w>>4);
340 if( (
unsigned)sx >= w - b_w - (
HTAPS_MAX-2)
341 || (
unsigned)sy >= h - b_h - (
HTAPS_MAX-2)){
347 assert(b_w>1 && b_h>1);
348 assert((tab_index>=0 && tab_index<4) || b_w==32);
349 if((dx&3) || (dy&3) || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h) || (b_w&(b_w-1)) || !s->
plane[plane_index].
fast_mc )
350 mc_block(&s->
plane[plane_index], dst, src, stride, b_w, b_h, dx, dy);
353 for(y=0; y<b_h; y+=16){
370 #define mca(dx,dy,b_w)\
371 static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, int stride, int h){\
373 mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\
397 s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\
398 s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\
399 s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\
400 s->dsp.put_qpel_pixels_tab [1][dy+dx/4]=\
401 s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\
402 s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4];
422 s->dsp.put_pixels_tab [0][dy/4+dx/8]=\
423 s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
424 mc_block_hpel ## dx ## dy ## 16;\
425 s->dsp.put_pixels_tab [1][dy/4+dx/8]=\
426 s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
427 mc_block_hpel ## dx ## dy ## 8;
461 int plane_index,
level, orientation;
463 for(plane_index=0; plane_index<3; plane_index++){
475 for(orientation=level ? 1 : 0; orientation<4; orientation++){
481 b->
width = (w + !(orientation&1))>>1;
482 b->
height= (h + !(orientation>1))>>1;
512 #define USE_HALFPEL_PLANE 0
522 uint8_t *src= frame->
data[p];
533 halfpel[1][p][i]= (20*(src[i] + src[i+1]) - 5*(src[i-1] + src[i+2]) + (src[i-2] + src[i+3]) + 16 )>>5;
540 halfpel[2][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5;
548 halfpel[3][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5;
623 int plane_index,
level, orientation, i;
644 for(plane_index=0; plane_index<3; plane_index++){
646 for(orientation=level ? 1 : 0; orientation<4; orientation++){
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free
#define slice_buffer_get_line(slice_buf, line_num)
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int(* get_buffer)(struct AVCodecContext *c, AVFrame *pic)
Called at the beginning of each frame to get a buffer for it.
void(* emulated_edge_mc)(uint8_t *buf, const uint8_t *src, int linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Motion estimation with emulated edge values.
int ff_snow_frame_start(SnowContext *s)
void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t **block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer *sb, int add, uint8_t *dst8)
void(* release_buffer)(struct AVCodecContext *c, AVFrame *pic)
Called to release buffers which were allocated with get_buffer.
void(* draw_edges)(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides)
uint32_t * score_map
map to store the scores
static const uint8_t obmc4[16]
int ff_snow_common_init_after_header(AVCodecContext *avctx)
void ff_snow_reset_contexts(SnowContext *s)
void ff_dwt_init(DWTContext *c)
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
uint32_t * ref_scores[MAX_REF_FRAMES]
#define MAX_DECOMPOSITIONS
void ff_snow_release_buffer(AVCodecContext *avctx)
av_cold void dsputil_init(DSPContext *c, AVCodecContext *avctx)
Used to minimize the amount of memory used in order to optimize cache performance.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
int16_t(*[MAX_REF_FRAMES] ref_mvs)[2]
int reference
is this picture used as reference The values for this are the same as the MpegEncContext.picture_structure variable, that is 1->top field, 2->bottom field, 3->frame/both fields.
void av_log(void *avcl, int level, const char *fmt,...)
static void init_qexp(void)
int scale_mv_ref[MAX_REF_FRAMES][MAX_REF_FRAMES]
#define CODEC_FLAG_EMU_EDGE
Don't draw edges.
#define USE_HALFPEL_PLANE
SubBand band[MAX_DECOMPOSITIONS][4]
static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy)
static void halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame)
int width
picture width / height.
static av_always_inline av_const long int lrintf(float x)
uint8_t * halfpel_plane[MAX_REF_FRAMES][4][4]
uint8_t block_state[128+32 *128]
int spatial_decomposition_count
int linesize[AV_NUM_DATA_POINTERS]
Size, in bytes, of the data for each picture/channel plane.
main external API structure.
int8_t hcoeff[HTAPS_MAX/2]
int ff_snow_alloc_blocks(SnowContext *s)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int ff_snow_common_init(AVCodecContext *avctx)
static const uint16_t scale[4]
qpel_mc_func put_h264_qpel_pixels_tab[4][16]
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h)
#define FF_ALLOC_OR_GOTO(ctx, p, size, label)
uint8_t * obmc_scratchpad
DWTELEM * spatial_dwt_buffer
static const uint8_t color[]
uint32_t * map
map to avoid duplicate evaluations
IDWTELEM * spatial_idwt_buffer
int key_frame
1 -> keyframe, 0-> not
av_cold void ff_snow_common_end(SnowContext *s)
#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)
int stride_line
Stride measured in lines, not pixels.
AVFrame last_picture[MAX_REF_FRAMES]