33 #define TM2_ESCAPE 0x80000000
127 huff->
bits[huff->
num] = prefix;
128 huff->
lens[huff->
num] = length;
132 if ((ret =
tm2_read_tree(ctx, prefix << 1, length + 1, huff)) < 0)
134 if ((ret =
tm2_read_tree(ctx, (prefix << 1) | 1, length + 1, huff)) < 0)
158 if ((huff.
nodes <= 0) || (huff.
nodes > 0x10000)) {
160 "nodes: %i\n", huff.
nodes);
186 huff.
lens,
sizeof(
int),
sizeof(
int),
187 huff.
bits,
sizeof(uint32_t),
sizeof(uint32_t), 0);
194 for (i = 0; i < code->
length; i++)
220 #define TM2_OLD_HEADER_MAGIC 0x00000100
221 #define TM2_NEW_HEADER_MAGIC 0x00000101
247 if ((d < 1) || (d >
TM2_DELTAS) || (mb < 1) || (mb > 32)) {
252 for (i = 0; i < d; i++) {
254 if (v & (1 << (mb - 1)))
255 ctx->
deltas[stream_id][i] = v - (1 << mb);
257 ctx->
deltas[stream_id][i] = v;
260 ctx->
deltas[stream_id][i] = 0;
275 len = bytestream2_get_be32(&gb);
281 if (len >= INT_MAX/4-1 || len < 0 || len > buf_size) {
286 toks = bytestream2_get_be32(&gb);
288 len = bytestream2_get_be32(&gb);
290 len = bytestream2_get_be32(&gb);
303 len = bytestream2_get_be32(&gb);
320 if ((toks < 0) || (toks > 0xFFFFFF)) {
327 len = bytestream2_get_be32(&gb);
333 for (i = 0; i < toks; i++) {
339 if (stream_id <= TM2_MOT && ctx->tokens[stream_id][i] >=
TM2_DELTAS) {
341 ctx->
tokens[stream_id][i], stream_id, i);
346 for (i = 0; i < toks; i++) {
348 if (stream_id <= TM2_MOT && ctx->tokens[stream_id][i] >=
TM2_DELTAS) {
350 ctx->
tokens[stream_id][i], stream_id, i);
374 #define TM2_INIT_POINTERS() \
377 int Ystride, Ustride, Vstride;\
379 Ystride = ctx->y_stride;\
380 Vstride = ctx->uv_stride;\
381 Ustride = ctx->uv_stride;\
382 Y = (ctx->cur?ctx->Y2:ctx->Y1) + by * 4 * Ystride + bx * 4;\
383 V = (ctx->cur?ctx->V2:ctx->V1) + by * 2 * Vstride + bx * 2;\
384 U = (ctx->cur?ctx->U2:ctx->U1) + by * 2 * Ustride + bx * 2;\
385 last = ctx->last + bx * 4;\
386 clast = ctx->clast + bx * 4;
388 #define TM2_INIT_POINTERS_2() \
390 int oYstride, oUstride, oVstride;\
392 TM2_INIT_POINTERS();\
396 Yo = (ctx->cur?ctx->Y1:ctx->Y2) + by * 4 * oYstride + bx * 4;\
397 Vo = (ctx->cur?ctx->V1:ctx->V2) + by * 2 * oVstride + bx * 2;\
398 Uo = (ctx->cur?ctx->U1:ctx->U2) + by * 2 * oUstride + bx * 2;
401 #define TM2_RECALC_BLOCK(CHR, stride, last, CD) {\
402 CD[0] = CHR[1] - last[1];\
403 CD[1] = (int)CHR[stride + 1] - (int)CHR[1];\
404 last[0] = (int)CHR[stride + 0];\
405 last[1] = (int)CHR[stride + 1];}
413 for (j = 0; j < 4; j++){
415 for (i = 0; i < 4; i++){
416 d = deltas[i + j * 4];
419 Y[i] = av_clip_uint8(last[i]);
429 for (j = 0; j < 2; j++) {
430 for (i = 0; i < 2; i++) {
431 CD[j] += deltas[i + j * 2];
449 t = (CD[0] + CD[1]) >> 1;
450 l = (prev - CD[0] - CD[1] + clast[1]) >> 1;
451 CD[1] = CD[0] + CD[1] -
t;
465 for (i = 0; i < 4; i++) {
473 for (i = 0; i < 16; i++)
487 deltas[1] = deltas[2] = deltas[3] = 0;
491 deltas[1] = deltas[2] = deltas[3] = 0;
495 for (i = 0; i < 16; i++)
510 deltas[1] = deltas[2] = deltas[3] = 0;
514 deltas[1] = deltas[2] = deltas[3] = 0;
518 for (i = 0; i < 16; i++)
527 last[0] = (last[-1] - ctx->
D[0] - ctx->
D[1] - ctx->
D[2] - ctx->
D[3] + last[1]) >> 1;
529 last[0] = (last[1] - ctx->
D[0] - ctx->
D[1] - ctx->
D[2] - ctx->
D[3])>> 1;
530 last[2] = (last[1] + last[3]) >> 1;
532 t1 = ctx->
D[0] + ctx->
D[1];
534 ctx->
D[1] = t1 - (t1 >> 1);
535 t2 = ctx->
D[2] + ctx->
D[3];
537 ctx->
D[3] = t2 - (t2 >> 1);
546 int left, right, diff;
551 deltas[0] = deltas[1] = deltas[2] = deltas[3] = 0;
554 deltas[0] = deltas[1] = deltas[2] = deltas[3] = 0;
558 for (i = 0; i < 16; i++)
561 ct = ctx->
D[0] + ctx->
D[1] + ctx->
D[2] + ctx->
D[3];
564 left = last[-1] - ct;
570 last[0] = left + (diff >> 2);
571 last[1] = left + (diff >> 1);
572 last[2] = right - (diff >> 2);
577 ctx->
D[0] = (tp + (ct >> 2)) - left;
579 ctx->
D[1] = (tp + (ct >> 1)) - left;
581 ctx->
D[2] = ((tp + ct) - (ct >> 2)) - left;
583 ctx->
D[3] = (tp + ct) - left;
594 for (j = 0; j < 2; j++) {
595 for (i = 0; i < 2; i++){
599 U += Ustride;
V += Vstride;
600 Uo += oUstride; Vo += oVstride;
608 ctx->
D[0] = Yo[3] - last[3];
609 ctx->
D[1] = Yo[3 + oYstride] - Yo[3];
610 ctx->
D[2] = Yo[3 + oYstride * 2] - Yo[3 + oYstride];
611 ctx->
D[3] = Yo[3 + oYstride * 3] - Yo[3 + oYstride * 2];
613 for (j = 0; j < 4; j++) {
614 for (i = 0; i < 4; i++) {
630 for (j = 0; j < 2; j++) {
631 for (i = 0; i < 2; i++) {
646 ctx->
D[0] = Yo[3] - last[3];
647 ctx->
D[1] = Yo[3 + oYstride] - Yo[3];
648 ctx->
D[2] = Yo[3 + oYstride * 2] - Yo[3 + oYstride];
649 ctx->
D[3] = Yo[3 + oYstride * 3] - Yo[3 + oYstride * 2];
651 for (j = 0; j < 4; j++) {
653 for (i = 0; i < 4; i++) {
657 ctx->
D[j] = last[3] - d;
671 mx = av_clip(mx, -(bx * 4 + 4), ctx->
avctx->
width - bx * 4);
672 my = av_clip(my, -(by * 4 + 4), ctx->
avctx->
height - by * 4);
674 Yo += my * oYstride + mx;
675 Uo += (my >> 1) * oUstride + (mx >> 1);
676 Vo += (my >> 1) * oVstride + (mx >> 1);
679 for (j = 0; j < 2; j++) {
680 for (i = 0; i < 2; i++) {
695 for (j = 0; j < 4; j++) {
696 for (i = 0; i < 4; i++) {
704 ctx->
D[0] =
Y[3] - last[3];
705 ctx->
D[1] =
Y[3 + Ystride] -
Y[3];
706 ctx->
D[2] = Y[3 + Ystride * 2] - Y[3 + Ystride];
707 ctx->
D[3] = Y[3 + Ystride * 3] - Y[3 + Ystride * 2];
708 for (i = 0; i < 4; i++)
709 last[i] = Y[i + Ystride * 3];
729 memset(ctx->
last, 0, 4 * bw *
sizeof(
int));
730 memset(ctx->
clast, 0, 4 * bw *
sizeof(
int));
732 for (j = 0; j < bh; j++) {
733 memset(ctx->
D, 0, 4 *
sizeof(
int));
734 memset(ctx->
CD, 0, 4 *
sizeof(
int));
735 for (i = 0; i < bw; i++) {
769 Y = (ctx->
cur?ctx->
Y2:ctx->
Y1);
770 U = (ctx->
cur?ctx->
U2:ctx->
U1);
771 V = (ctx->
cur?ctx->
V2:ctx->
V1);
773 for (j = 0; j < h; j++) {
774 for (i = 0; i < w; i++) {
775 int y = Y[i], u = U[i >> 1], v = V[i >> 1];
776 dst[3*i+0] = av_clip_uint8(y + v);
777 dst[3*i+1] = av_clip_uint8(y);
778 dst[3*i+2] = av_clip_uint8(y + u);
782 Y[-4] = Y[-3] = Y[-2] = Y[-1] = Y[0];
783 Y[w + 3] = Y[w + 2] = Y[w + 1] = Y[w] = Y[w - 1];
791 }
else if (j == h - 1) {
801 U[-2] = U[-1] = U[0];
802 V[-2] = V[-1] = V[0];
803 U[cw + 1] = U[cw] = U[cw - 1];
804 V[cw + 1] = V[cw] = V[cw - 1];
812 }
else if (j == h - 1) {
832 #define TM2_HEADER_SIZE 40
835 void *
data,
int *got_frame,
840 int buf_size = avpkt->
size & ~3;
858 l->
dsp.
bswap_buf((uint32_t*)swbuf, (
const uint32_t*)buf, buf_size >> 2);
866 if (offset >= buf_size) {
889 return (ret < 0) ? ret : buf_size;
979 .
name =
"truemotion2",