40 int src_x, src_y, motion_x, motion_y;
50 src_x = av_clip(src_x, -16, s->
width);
51 if (src_x == s->
width)
53 src_y = av_clip(src_y, -16, s->
height);
60 ptr = ref_picture[0] + src_y * linesize + src_x;
72 if ((motion_x | motion_y) & 7) {
73 s->
dsp.
gmc1(dest_y, ptr, linesize, 16,
74 motion_x & 15, motion_y & 15, 128 - s->
no_rounding);
75 s->
dsp.
gmc1(dest_y + 8, ptr + 8, linesize, 16,
76 motion_x & 15, motion_y & 15, 128 - s->
no_rounding);
80 dxy = ((motion_x >> 3) & 1) | ((motion_y >> 2) & 2);
97 src_x = av_clip(src_x, -8, s->
width >> 1);
98 if (src_x == s->
width >> 1)
100 src_y = av_clip(src_y, -8, s->
height >> 1);
101 if (src_y == s->
height >> 1)
105 ptr = ref_picture[1] + offset;
109 uvlinesize, uvlinesize,
116 s->
dsp.
gmc1(dest_cb, ptr, uvlinesize, 8,
117 motion_x & 15, motion_y & 15, 128 - s->
no_rounding);
119 ptr = ref_picture[2] + offset;
122 uvlinesize, uvlinesize,
128 s->
dsp.
gmc1(dest_cr, ptr, uvlinesize, 8,
129 motion_x & 15, motion_y & 15, 128 - s->
no_rounding);
144 ptr = ref_picture[0];
151 s->
dsp.
gmc(dest_y, ptr, linesize, 16,
157 s->
dsp.
gmc(dest_y + 8, ptr, linesize, 16,
173 ptr = ref_picture[1];
174 s->
dsp.
gmc(dest_cb, ptr, uvlinesize, 8,
181 ptr = ref_picture[2];
182 s->
dsp.
gmc(dest_cr, ptr, uvlinesize, 8,
192 int src_x,
int src_y,
194 int motion_x,
int motion_y)
199 src_x += motion_x >> 1;
200 src_y += motion_y >> 1;
203 src_x = av_clip(src_x, -16, s->
width);
204 if (src_x != s->
width)
206 src_y = av_clip(src_y, -16, s->
height);
208 dxy |= (motion_y & 1) << 1;
243 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
244 int dxy, uvdxy, mx, my, src_x, src_y,
259 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
260 src_x = s->
mb_x * 16 + (motion_x >> 1);
261 src_y = (mb_y << (4 - field_based)) + (motion_y >> 1);
265 mx = (motion_x >> 1) | (motion_x & 1);
267 uvdxy = ((my & 1) << 1) | (mx & 1);
268 uvsrc_x = s->
mb_x * 8 + (mx >> 1);
269 uvsrc_y = (mb_y << (3 - field_based)) + (my >> 1);
271 uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
272 uvsrc_x = src_x >> 1;
273 uvsrc_y = src_y >> 1;
280 uvsrc_x = s->
mb_x * 8 + mx;
281 uvsrc_y = mb_y * 8 + my;
286 uvdxy = ((my & 1) << 1) | (mx & 1);
287 uvsrc_x = s->
mb_x * 8 + (mx >> 1);
288 uvsrc_y = (mb_y << (3 - field_based)) + (my >> 1);
293 uvdxy = ((motion_y & 1) << 1) | (mx & 1);
294 uvsrc_x = s->
mb_x * 8 + (mx >> 1);
305 ptr_y = ref_picture[0] + src_y * linesize + src_x;
306 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
307 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
310 (unsigned)src_y >
FFMAX(v_edge_pos - (motion_y & 1) - h, 0)) {
315 "MPEG motion vector out of boundary (%d %d)\n", src_x,
321 17, 17 + field_based,
322 src_x, src_y << field_based,
330 uvsrc_x, uvsrc_y << field_based,
335 uvsrc_x, uvsrc_y << field_based,
356 pix_op[0][dxy](dest_y, ptr_y,
linesize, h);
372 int field_select,
uint8_t **ref_picture,
374 int motion_x,
int motion_y,
int h,
int mb_y)
379 field_select, ref_picture, pix_op,
380 motion_x, motion_y, h, 1, mb_y);
384 field_select, ref_picture, pix_op,
385 motion_x, motion_y, h, 0, mb_y);
390 int bottom_field,
int field_select,
393 int motion_x,
int motion_y,
int h,
int mb_y)
398 bottom_field, field_select, ref_picture, pix_op,
399 motion_x, motion_y, h, 1, mb_y);
403 bottom_field, field_select, ref_picture, pix_op,
404 motion_x, motion_y, h, 0, mb_y);
415 uint8_t *
const bottom = src[4];
416 #define OBMC_FILTER(x, t, l, m, r, b)\
417 dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
418 #define OBMC_FILTER4(x, t, l, m, r, b)\
419 OBMC_FILTER(x , t, l, m, r, b);\
420 OBMC_FILTER(x+1 , t, l, m, r, b);\
421 OBMC_FILTER(x +stride, t, l, m, r, b);\
422 OBMC_FILTER(x+1+stride, t, l, m, r, b);
463 int src_x,
int src_y,
473 for (i = 0; i < 5; i++) {
474 if (i && mv[i][0] == mv[
MID][0] && mv[i][1] == mv[
MID][1]) {
491 int field_based,
int bottom_field,
492 int field_select,
uint8_t **ref_picture,
495 int motion_x,
int motion_y,
int h)
497 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
498 int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y,
v_edge_pos;
501 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
503 src_x = s->
mb_x * 16 + (motion_x >> 2);
504 src_y = s->
mb_y * (16 >> field_based) + (motion_y >> 2);
507 linesize = s->
linesize << field_based;
514 static const int rtab[8] = { 0, 0, 1, 1, 0, 0, 0, 1 };
515 mx = (motion_x >> 1) + rtab[motion_x & 7];
516 my = (motion_y >> 1) + rtab[motion_y & 7];
518 mx = (motion_x >> 1) | (motion_x & 1);
519 my = (motion_y >> 1) | (motion_y & 1);
524 mx = (mx >> 1) | (mx & 1);
525 my = (my >> 1) | (my & 1);
527 uvdxy = (mx & 1) | ((my & 1) << 1);
531 uvsrc_x = s->
mb_x * 8 + mx;
532 uvsrc_y = s->
mb_y * (8 >> field_based) + my;
534 ptr_y = ref_picture[0] + src_y * linesize + src_x;
535 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
536 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
539 (unsigned)src_y >
FFMAX(v_edge_pos - (motion_y & 3) - h, 0)) {
542 17, 17 + field_based,
543 src_x, src_y << field_based,
551 uvsrc_x, uvsrc_y << field_based,
556 uvsrc_x, uvsrc_y << field_based,
564 qpix_op[0][dxy](dest_y, ptr_y,
linesize);
579 qpix_op[1][dxy](dest_y, ptr_y,
linesize);
580 qpix_op[1][dxy](dest_y + 8, ptr_y + 8,
linesize);
583 pix_op[1][uvdxy](dest_cr, ptr_cr,
uvlinesize, h >> 1);
584 pix_op[1][uvdxy](dest_cb, ptr_cb,
uvlinesize, h >> 1);
598 int src_x, src_y, dxy, emu = 0;
606 dxy = ((my & 1) << 1) | (mx & 1);
610 src_x = s->
mb_x * 8 + mx;
611 src_y = s->
mb_y * 8 + my;
612 src_x = av_clip(src_x, -8, (s->
width >> 1));
613 if (src_x == (s->
width >> 1))
615 src_y = av_clip(src_y, -8, (s->
height >> 1));
616 if (src_y == (s->
height >> 1))
620 ptr = ref_picture[1] + offset;
621 if ((
unsigned)src_x >
FFMAX((s->
h_edge_pos >> 1) - (dxy & 1) - 8, 0) ||
632 ptr = ref_picture[2] + offset;
648 const int mx = (s->
mv[dir][0][0] >> shift) + 16 * s->
mb_x + 8;
649 const int my = (s->
mv[dir][0][1] >> shift) + 16 * s->
mb_y;
653 off = (mx >> 1) + ((my >> 1) + (s->
mb_x & 7)) * s->
uvlinesize + 64;
668 const int xy = mb_x + mb_y * s->
mb_stride;
670 const int mot_xy = mb_x * 2 + mb_y * 2 * mot_stride;
679 cur_frame->
motion_val[0][mot_xy + mot_stride]);
681 cur_frame->
motion_val[0][mot_xy + mot_stride + 1]);
684 cur_frame->
motion_val[0][mot_xy + mot_stride]);
686 cur_frame->
motion_val[0][mot_xy + mot_stride + 1]);
689 AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
690 AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
693 cur_frame->
motion_val[0][mot_xy - mot_stride]);
695 cur_frame->
motion_val[0][mot_xy - mot_stride + 1]);
699 AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
700 AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
704 cur_frame->
motion_val[0][mot_xy - 1 + mot_stride]);
708 AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
709 AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
713 cur_frame->
motion_val[0][mot_xy + 2 + mot_stride]);
718 for (i = 0; i < 4; i++) {
719 const int x = (i & 1) + 1;
720 const int y = (i >> 1) + 1;
722 { mv_cache[y][x][0], mv_cache[y][x][1] },
723 { mv_cache[y - 1][x][0], mv_cache[y - 1][x][1] },
724 { mv_cache[y][x - 1][0], mv_cache[y][x - 1][1] },
725 { mv_cache[y][x + 1][0], mv_cache[y][x + 1][1] },
726 { mv_cache[y + 1][x][0], mv_cache[y + 1][x][1] }
731 mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >> 1) * 8,
740 ref_picture, pix_op[1],
753 int dxy, mx, my, src_x, src_y;
762 for (i = 0; i < 4; i++) {
763 int motion_x = s->
mv[dir][i][0];
764 int motion_y = s->
mv[dir][i][1];
766 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
767 src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
768 src_y = mb_y * 16 + (motion_y >> 2) + (i >> 1) * 8;
771 src_x = av_clip(src_x, -16, s->
width);
772 if (src_x == s->
width)
774 src_y = av_clip(src_y, -16, s->
height);
778 ptr = ref_picture[0] + (src_y * s->
linesize) + (src_x);
789 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->
linesize;
790 qpix_op[1][dxy](dest, ptr, s->
linesize);
792 mx += s->
mv[dir][i][0] / 2;
793 my += s->
mv[dir][i][1] / 2;
796 for (i = 0; i < 4; i++) {
798 dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->
linesize,
800 mb_x * 16 + (i & 1) * 8,
801 mb_y * 16 + (i >> 1) * 8,
806 mx += s->
mv[dir][i][0];
807 my += s->
mv[dir][i][1];
813 ref_picture, pix_op[1], mx, my);
844 apply_obmc(s, dest_y, dest_cb, dest_cr, ref_picture, pix_op);
861 ref_picture, pix_op, qpix_op,
862 s->
mv[dir][0][0], s->
mv[dir][0][1], 16);
867 s->
mv[dir][0][0], s->
mv[dir][0][1], 16);
871 s->
mv[dir][0][0], s->
mv[dir][0][1], 16, mb_y);
877 dir, ref_picture, qpix_op, pix_op);
882 for (i = 0; i < 2; i++)
885 ref_picture, pix_op, qpix_op,
886 s->
mv[dir][i][0], s->
mv[dir][i][1], 8);
892 s->
mv[dir][0][0], s->
mv[dir][0][1], 8, mb_y);
897 s->
mv[dir][1][0], s->
mv[dir][1][1], 8, mb_y);
908 s->
mv[dir][0][0], s->
mv[dir][0][1], 16, mb_y >> 1);
912 for (i = 0; i < 2; i++) {
925 s->
mv[dir][i][0], s->
mv[dir][i][1] + 16 * i,
935 for (i = 0; i < 2; i++) {
937 for (j = 0; j < 2; j++)
939 j, j ^ i, ref_picture, pix_op,
940 s->
mv[dir][2 * i + j][0],
941 s->
mv[dir][2 * i + j][1], 8, mb_y);
945 for (i = 0; i < 2; i++) {
949 s->
mv[dir][2 * i][0], s->
mv[dir][2 * i][1],
977 ref_picture, pix_op, qpix_op, 1);
981 ref_picture, pix_op, qpix_op, 0);
void(* prefetch)(uint8_t *buf, ptrdiff_t stride, int h)
Prefetch memory into cache (if supported by hardware).
static void gmc_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)
#define MV_TYPE_FIELD
2 vectors, one per field
int sprite_warping_accuracy
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
#define FF_BUG_HPEL_CHROMA
int obmc
overlapped block motion compensation
int real_sprite_warping_points
#define CONFIG_WMV2_DECODER
#define CONFIG_WMV2_ENCODER
static void chroma_4mv_motion(MpegEncContext *s, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func *pix_op, int mx, int my)
h263 chroma 4mv motion compensation.
enum OutputFormat out_format
output format
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
Picture current_picture
copy of the current picture structure.
#define FF_BUG_QPEL_CHROMA2
#define CONFIG_H261_ENCODER
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
#define LOCAL_ALIGNED_8(t, v,...)
static void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir)
static int ff_h263_round_chroma(int x)
int mb_skipped
MUST BE SET only during DECODING.
int unrestricted_mv
mv can point outside of the coded picture
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
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,...)
int quarter_sample
1->qpel, 0->half pel ME/MC
common internal API header
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
int16_t(*[2] motion_val)[2]
Picture * current_picture_ptr
pointer to the current picture
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)
static void gmc1_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)
#define FF_BUG_QPEL_CHROMA
preferred ID for MPEG-1/2 video decoding
static av_always_inline void mpeg_motion_internal(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h, int is_mpeg12, int mb_y)
#define OBMC_FILTER4(x, t, l, m, r, b)
static av_always_inline void MPV_motion_internal(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16], int is_mpeg12)
motion compensation of a single macroblock
int first_field
is 1 for the first field of a field picture 0 otherwise
static const int8_t mv[256][2]
#define MV_TYPE_16X16
1 vector for the whole mb
Libavcodec external API header.
ptrdiff_t linesize
line size, in bytes, may be different from width
static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h, int mb_y)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
void(* qpel_mc_func)(uint8_t *dst, uint8_t *src, ptrdiff_t stride)
int height
picture size. must be a multiple of 16
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
#define MV_TYPE_16X8
2 vectors, one per 16x8 block
void(* gmc1)(uint8_t *dst, uint8_t *src, int srcStride, int h, int x16, int y16, int rounder)
translational global motion compensation.
op_pixels_func put_no_rnd_pixels_tab[2][4]
Halfpel motion compensation with no rounding (a+b)>>1.
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
DSPContext dsp
pointers for accelerated dsp functions
static void mpeg_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h, int mb_y)
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
struct AVCodecContext * avctx
static void qpel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16], int motion_x, int motion_y, int h)
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
#define CODEC_FLAG_GRAY
Only decode/encode grayscale.
void ff_MPV_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])
void(* gmc)(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy, int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height)
global motion compensation.
uint8_t * obmc_scratchpad
#define MV_TYPE_DMV
2 vectors, special mpeg2 Dual Prime Vectors
static void apply_obmc(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 flags
AVCodecContext.flags (HQ, MV4, ...)
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
void ff_h261_loop_filter(MpegEncContext *s)
static int hpel_motion(MpegEncContext *s, uint8_t *dest, uint8_t *src, int src_x, int src_y, op_pixels_func *pix_op, int motion_x, int motion_y)
static int ref_picture(H264Context *h, Picture *dst, Picture *src)
static void obmc_motion(MpegEncContext *s, uint8_t *dest, uint8_t *src, int src_x, int src_y, op_pixels_func *pix_op, int16_t mv[5][2])
#define MV_TYPE_8X8
4 vectors (h263, mpeg4 4MV)
static void apply_8x8(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, qpel_mc_func(*qpix_op)[16], op_pixels_func(*pix_op)[4])
#define CONFIG_H261_DECODER
void(* emulated_edge_mc)(uint8_t *buf, const uint8_t *src, ptrdiff_t buf_linesize, ptrdiff_t src_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...
static void put_obmc(uint8_t *dst, uint8_t *src[5], int stride)
#define OBMC_FILTER(x, t, l, m, r, b)