- { 0, 0 },
- { 1, 0 }, { 0, 1 },
- { 0, 2 }, { 1, 1 }, { 2, 0 },
- { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 },
- { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 },
- { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 },
- { 2, 4 }, { 3, 3 }, { 4, 2 },
- { 4, 3 }, { 3, 4 },
- { 4, 4 }
+ { 0, 0 },
+ { 1, 0 }, { 0, 1 },
+ { 0, 2 }, { 1, 1 }, { 2, 0 },
+ { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 },
+ { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 },
+ { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 },
+ { 2, 4 }, { 3, 3 }, { 4, 2 },
+ { 4, 3 }, { 3, 4 },
+ { 4, 4 }
- { { 2,-1,-1,-1,-1 }, { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 },
- { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 }, { 1, 2,-1,-1,-1 } },
- { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 },
- { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } },
- { { 2, 0,-1,-1,-1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 },
- { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } },
- { { 2, 0,-1,-1,-1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 },
- { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } },
- { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 },
- { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } },
- { { 0, 2,-1,-1,-1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 },
- { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } },
+ { { 2,-1,-1,-1,-1 }, { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 },
+ { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 }, { 1, 2,-1,-1,-1 } },
+ { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 },
+ { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } },
+ { { 2, 0,-1,-1,-1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 },
+ { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } },
+ { { 2, 0,-1,-1,-1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 },
+ { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } },
+ { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 },
+ { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } },
+ { { 0, 2,-1,-1,-1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 },
+ { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } },
- { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 },
- { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } },
- { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 },
- { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } }
+ { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 },
+ { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } },
+ { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 },
+ { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } }
- 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718,
- 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873,
- 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683,
- 61694, 68745, 77615, 89113,100253,109366,126635,141533
+ 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718,
+ 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873,
+ 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683,
+ 61694, 68745, 77615, 89113,100253,109366,126635,141533
- mx = av_clip (mx, -16, (s->h_edge_pos - width + 15));
- my = av_clip (my, -16, (s->v_edge_pos - height + 15));
- }
-
- /* form component predictions */
- dest = s->current_picture.data[0] + x + y*s->linesize;
- src = pic->data[0] + mx + my*s->linesize;
-
- if (emu) {
- ff_emulated_edge_mc (s->edge_emu_buffer, src, s->linesize, (width + 1), (height + 1),
- mx, my, s->h_edge_pos, s->v_edge_pos);
- src = s->edge_emu_buffer;
- }
- if(thirdpel)
- (avg ? s->dsp.avg_tpel_pixels_tab : s->dsp.put_tpel_pixels_tab)[dxy](dest, src, s->linesize, width, height);
- else
- (avg ? s->dsp.avg_pixels_tab : s->dsp.put_pixels_tab)[blocksize][dxy](dest, src, s->linesize, height);
-
- if (!(s->flags & CODEC_FLAG_GRAY)) {
- mx = (mx + (mx < (int) x)) >> 1;
- my = (my + (my < (int) y)) >> 1;
- width = (width >> 1);
- height = (height >> 1);
- blocksize++;
-
- for (i=1; i < 3; i++) {
- dest = s->current_picture.data[i] + (x >> 1) + (y >> 1)*s->uvlinesize;
- src = pic->data[i] + mx + my*s->uvlinesize;
-
- if (emu) {
- ff_emulated_edge_mc (s->edge_emu_buffer, src, s->uvlinesize, (width + 1), (height + 1),
- mx, my, (s->h_edge_pos >> 1), (s->v_edge_pos >> 1));
+ /* form component predictions */
+ dest = s->current_picture.f.data[0] + x + y*s->linesize;
+ src = pic->f.data[0] + mx + my*s->linesize;
+
+ if (emu) {
+ s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, (width + 1), (height + 1),
+ mx, my, s->h_edge_pos, s->v_edge_pos);
-static inline int svq3_mc_dir (H264Context *h, int size, int mode, int dir, int avg) {
-
- int i, j, k, mx, my, dx, dy, x, y;
- MpegEncContext *const s = (MpegEncContext *) h;
- const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1);
- const int part_height = 16 >> ((unsigned) (size + 1) / 3);
- const int extra_width = (mode == PREDICT_MODE) ? -16*6 : 0;
- const int h_edge_pos = 6*(s->h_edge_pos - part_width ) - extra_width;
- const int v_edge_pos = 6*(s->v_edge_pos - part_height) - extra_width;
-
- for (i=0; i < 16; i+=part_height) {
- for (j=0; j < 16; j+=part_width) {
- const int b_xy = (4*s->mb_x+(j>>2)) + (4*s->mb_y+(i>>2))*h->b_stride;
- int dxy;
- x = 16*s->mb_x + j;
- y = 16*s->mb_y + i;
- k = ((j>>2)&1) + ((i>>1)&2) + ((j>>1)&4) + (i&8);
-
- if (mode != PREDICT_MODE) {
- pred_motion (h, k, (part_width >> 2), dir, 1, &mx, &my);
- } else {
- mx = s->next_picture.motion_val[0][b_xy][0]<<1;
- my = s->next_picture.motion_val[0][b_xy][1]<<1;
-
- if (dir == 0) {
- mx = ((mx * h->frame_num_offset) / h->prev_frame_num_offset + 1)>>1;
- my = ((my * h->frame_num_offset) / h->prev_frame_num_offset + 1)>>1;
- } else {
- mx = ((mx * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1)>>1;
- my = ((my * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1)>>1;
+static inline int svq3_mc_dir(H264Context *h, int size, int mode, int dir,
+ int avg)
+{
+ int i, j, k, mx, my, dx, dy, x, y;
+ MpegEncContext *const s = (MpegEncContext *) h;
+ const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1);
+ const int part_height = 16 >> ((unsigned) (size + 1) / 3);
+ const int extra_width = (mode == PREDICT_MODE) ? -16*6 : 0;
+ const int h_edge_pos = 6*(s->h_edge_pos - part_width ) - extra_width;
+ const int v_edge_pos = 6*(s->v_edge_pos - part_height) - extra_width;
+
+ for (i = 0; i < 16; i += part_height) {
+ for (j = 0; j < 16; j += part_width) {
+ const int b_xy = (4*s->mb_x + (j >> 2)) + (4*s->mb_y + (i >> 2))*h->b_stride;
+ int dxy;
+ x = 16*s->mb_x + j;
+ y = 16*s->mb_y + i;
+ k = ((j >> 2) & 1) + ((i >> 1) & 2) + ((j >> 1) & 4) + (i & 8);
+
+ if (mode != PREDICT_MODE) {
+ pred_motion(h, k, (part_width >> 2), dir, 1, &mx, &my);
+ } else {
+ mx = s->next_picture.f.motion_val[0][b_xy][0] << 1;
+ my = s->next_picture.f.motion_val[0][b_xy][1] << 1;
+
+ if (dir == 0) {
+ mx = ((mx * h->frame_num_offset) / h->prev_frame_num_offset + 1) >> 1;
+ my = ((my * h->frame_num_offset) / h->prev_frame_num_offset + 1) >> 1;
+ } else {
+ mx = ((mx * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1) >> 1;
+ my = ((my * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1) >> 1;
+ }
+ }
+
+ /* clip motion vector prediction to frame border */
+ mx = av_clip(mx, extra_width - 6*x, h_edge_pos - 6*x);
+ my = av_clip(my, extra_width - 6*y, v_edge_pos - 6*y);
+
+ /* get (optional) motion vector differential */
+ if (mode == PREDICT_MODE) {
+ dx = dy = 0;
+ } else {
+ dy = svq3_get_se_golomb(&s->gb);
+ dx = svq3_get_se_golomb(&s->gb);
+
+ if (dx == INVALID_VLC || dy == INVALID_VLC) {
+ av_log(h->s.avctx, AV_LOG_ERROR, "invalid MV vlc\n");
+ return -1;
+ }
+ }
+
+ /* compute motion vector */
+ if (mode == THIRDPEL_MODE) {
+ int fx, fy;
+ mx = ((mx + 1)>>1) + dx;
+ my = ((my + 1)>>1) + dy;
+ fx = ((unsigned)(mx + 0x3000))/3 - 0x1000;
+ fy = ((unsigned)(my + 0x3000))/3 - 0x1000;
+ dxy = (mx - 3*fx) + 4*(my - 3*fy);
+
+ svq3_mc_dir_part(s, x, y, part_width, part_height, fx, fy, dxy, 1, dir, avg);
+ mx += mx;
+ my += my;
+ } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) {
+ mx = ((unsigned)(mx + 1 + 0x3000))/3 + dx - 0x1000;
+ my = ((unsigned)(my + 1 + 0x3000))/3 + dy - 0x1000;
+ dxy = (mx&1) + 2*(my&1);
+
+ svq3_mc_dir_part(s, x, y, part_width, part_height, mx>>1, my>>1, dxy, 0, dir, avg);
+ mx *= 3;
+ my *= 3;
+ } else {
+ mx = ((unsigned)(mx + 3 + 0x6000))/6 + dx - 0x1000;
+ my = ((unsigned)(my + 3 + 0x6000))/6 + dy - 0x1000;
+
+ svq3_mc_dir_part(s, x, y, part_width, part_height, mx, my, 0, 0, dir, avg);
+ mx *= 6;
+ my *= 6;
+ }
+
+ /* update mv_cache */
+ if (mode != PREDICT_MODE) {
+ int32_t mv = pack16to32(mx,my);
+
+ if (part_height == 8 && i < 8) {
+ *(int32_t *) h->mv_cache[dir][scan8[k] + 1*8] = mv;
+
+ if (part_width == 8 && j < 8) {
+ *(int32_t *) h->mv_cache[dir][scan8[k] + 1 + 1*8] = mv;
+ }
+ }
+ if (part_width == 8 && j < 8) {
+ *(int32_t *) h->mv_cache[dir][scan8[k] + 1] = mv;
+ }
+ if (part_width == 4 || part_height == 4) {
+ *(int32_t *) h->mv_cache[dir][scan8[k]] = mv;
+ }
+ }
+
+ /* write back motion vectors */
+ fill_rectangle(s->current_picture.f.motion_val[dir][b_xy],
+ part_width >> 2, part_height >> 2, h->b_stride,
+ pack16to32(mx, my), 4);
- }
-
- /* clip motion vector prediction to frame border */
- mx = av_clip (mx, extra_width - 6*x, h_edge_pos - 6*x);
- my = av_clip (my, extra_width - 6*y, v_edge_pos - 6*y);
-
- /* get (optional) motion vector differential */
- if (mode == PREDICT_MODE) {
- dx = dy = 0;
- } else {
- dy = svq3_get_se_golomb (&s->gb);
- dx = svq3_get_se_golomb (&s->gb);
-
- if (dx == INVALID_VLC || dy == INVALID_VLC) {
- av_log(h->s.avctx, AV_LOG_ERROR, "invalid MV vlc\n");
- return -1;
+ }
+
+ return 0;
+}
+
+static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
+{
+ H264Context *h = &svq3->h;
+ int i, j, k, m, dir, mode;
+ int cbp = 0;
+ uint32_t vlc;
+ int8_t *top, *left;
+ MpegEncContext *const s = (MpegEncContext *) h;
+ const int mb_xy = h->mb_xy;
+ const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
+
+ h->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
+ h->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
+ h->topright_samples_available = 0xFFFF;
+
+ if (mb_type == 0) { /* SKIP */
+ if (s->pict_type == AV_PICTURE_TYPE_P || s->next_picture.f.mb_type[mb_xy] == -1) {
+ svq3_mc_dir_part(s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 0, 0);
+
+ if (s->pict_type == AV_PICTURE_TYPE_B) {
+ svq3_mc_dir_part(s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 1, 1);
+ }
+
+ mb_type = MB_TYPE_SKIP;
+ } else {
+ mb_type = FFMIN(s->next_picture.f.mb_type[mb_xy], 6);
+ if (svq3_mc_dir(h, mb_type, PREDICT_MODE, 0, 0) < 0)
+ return -1;
+ if (svq3_mc_dir(h, mb_type, PREDICT_MODE, 1, 1) < 0)
+ return -1;
+
+ mb_type = MB_TYPE_16x16;
- }
-
- /* compute motion vector */
- if (mode == THIRDPEL_MODE) {
- int fx, fy;
- mx = ((mx + 1)>>1) + dx;
- my = ((my + 1)>>1) + dy;
- fx= ((unsigned)(mx + 0x3000))/3 - 0x1000;
- fy= ((unsigned)(my + 0x3000))/3 - 0x1000;
- dxy= (mx - 3*fx) + 4*(my - 3*fy);
-
- svq3_mc_dir_part (s, x, y, part_width, part_height, fx, fy, dxy, 1, dir, avg);
- mx += mx;
- my += my;
- } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) {
- mx = ((unsigned)(mx + 1 + 0x3000))/3 + dx - 0x1000;
- my = ((unsigned)(my + 1 + 0x3000))/3 + dy - 0x1000;
- dxy= (mx&1) + 2*(my&1);
-
- svq3_mc_dir_part (s, x, y, part_width, part_height, mx>>1, my>>1, dxy, 0, dir, avg);
- mx *= 3;
- my *= 3;
- } else {
- mx = ((unsigned)(mx + 3 + 0x6000))/6 + dx - 0x1000;
- my = ((unsigned)(my + 3 + 0x6000))/6 + dy - 0x1000;
-
- svq3_mc_dir_part (s, x, y, part_width, part_height, mx, my, 0, 0, dir, avg);
- mx *= 6;
- my *= 6;
- }
-
- /* update mv_cache */
- if (mode != PREDICT_MODE) {
- int32_t mv = pack16to32(mx,my);
-
- if (part_height == 8 && i < 8) {
- *(int32_t *) h->mv_cache[dir][scan8[k] + 1*8] = mv;
-
- if (part_width == 8 && j < 8) {
- *(int32_t *) h->mv_cache[dir][scan8[k] + 1 + 1*8] = mv;
- }
+ } else if (mb_type < 8) { /* INTER */
+ if (svq3->thirdpel_flag && svq3->halfpel_flag == !get_bits1 (&s->gb)) {
+ mode = THIRDPEL_MODE;
+ } else if (svq3->halfpel_flag && svq3->thirdpel_flag == !get_bits1 (&s->gb)) {
+ mode = HALFPEL_MODE;
+ } else {
+ mode = FULLPEL_MODE;
- /* write back motion vectors */
- fill_rectangle(s->current_picture.motion_val[dir][b_xy], part_width>>2, part_height>>2, h->b_stride, pack16to32(mx,my), 4);
- }
- }
+ mb_type = MB_TYPE_16x16;
+ } else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */
+ memset(h->intra4x4_pred_mode_cache, -1, 8*5*sizeof(int8_t));
+
+ if (mb_type == 8) {
+ if (s->mb_x > 0) {
+ for (i = 0; i < 4; i++) {
+ h->intra4x4_pred_mode_cache[scan8[0] - 1 + i*8] = h->intra4x4_pred_mode[h->mb2br_xy[mb_xy - 1]+6-i];
+ }
+ if (h->intra4x4_pred_mode_cache[scan8[0] - 1] == -1) {
+ h->left_samples_available = 0x5F5F;
+ }
+ }
+ if (s->mb_y > 0) {
+ h->intra4x4_pred_mode_cache[4+8*0] = h->intra4x4_pred_mode[h->mb2br_xy[mb_xy - s->mb_stride]+0];
+ h->intra4x4_pred_mode_cache[5+8*0] = h->intra4x4_pred_mode[h->mb2br_xy[mb_xy - s->mb_stride]+1];
+ h->intra4x4_pred_mode_cache[6+8*0] = h->intra4x4_pred_mode[h->mb2br_xy[mb_xy - s->mb_stride]+2];
+ h->intra4x4_pred_mode_cache[7+8*0] = h->intra4x4_pred_mode[h->mb2br_xy[mb_xy - s->mb_stride]+3];
+
+ if (h->intra4x4_pred_mode_cache[4+8*0] == -1) {
+ h->top_samples_available = 0x33FF;
+ }
+ }
+
+ /* decode prediction codes for luma blocks */
+ for (i = 0; i < 16; i+=2) {
+ vlc = svq3_get_ue_golomb(&s->gb);
+
+ if (vlc >= 25){
+ av_log(h->s.avctx, AV_LOG_ERROR, "luma prediction:%d\n", vlc);
+ return -1;
+ }
+
+ left = &h->intra4x4_pred_mode_cache[scan8[i] - 1];
+ top = &h->intra4x4_pred_mode_cache[scan8[i] - 8];
+
+ left[1] = svq3_pred_1[top[0] + 1][left[0] + 1][svq3_pred_0[vlc][0]];
+ left[2] = svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]];
+
+ if (left[1] == -1 || left[2] == -1){
+ av_log(h->s.avctx, AV_LOG_ERROR, "weird prediction\n");
+ return -1;
+ }
+ }
+ } else { /* mb_type == 33, DC_128_PRED block type */
+ for (i = 0; i < 4; i++) {
+ memset(&h->intra4x4_pred_mode_cache[scan8[0] + 8*i], DC_PRED, 4);
+ }
+ }
- if (h->unknown_svq3_flag) {
- skip_bits1 (&s->gb);
- }
+ /* if a match was found, parse the extra data */
+ if (extradata && !memcmp(extradata, "SEQH", 4)) {
+
+ GetBitContext gb;
+ int frame_size_code;
+
+ size = AV_RB32(&extradata[4]);
+ init_get_bits(&gb, extradata + 8, size*8);
+
+ /* 'frame size code' and optional 'width, height' */
+ frame_size_code = get_bits(&gb, 3);
+ switch (frame_size_code) {
+ case 0: avctx->width = 160; avctx->height = 120; break;
+ case 1: avctx->width = 128; avctx->height = 96; break;
+ case 2: avctx->width = 176; avctx->height = 144; break;
+ case 3: avctx->width = 352; avctx->height = 288; break;
+ case 4: avctx->width = 704; avctx->height = 576; break;
+ case 5: avctx->width = 240; avctx->height = 180; break;
+ case 6: avctx->width = 320; avctx->height = 240; break;
+ case 7:
+ avctx->width = get_bits(&gb, 12);
+ avctx->height = get_bits(&gb, 12);
+ break;
+ }
+
+ svq3->halfpel_flag = get_bits1(&gb);
+ svq3->thirdpel_flag = get_bits1(&gb);
+
+ /* unknown fields */
+ skip_bits1(&gb);
+ skip_bits1(&gb);
+ skip_bits1(&gb);
+ skip_bits1(&gb);
+
+ s->low_delay = get_bits1(&gb);
+
+ /* unknown field */
+ skip_bits1(&gb);
+
+ while (get_bits1(&gb)) {
+ skip_bits(&gb, 8);
+ }
+
+ svq3->unknown_flag = get_bits1(&gb);
+ avctx->has_b_frames = !s->low_delay;
+ if (svq3->unknown_flag) {
+#if CONFIG_ZLIB
+ unsigned watermark_width = svq3_get_ue_golomb(&gb);
+ unsigned watermark_height = svq3_get_ue_golomb(&gb);
+ int u1 = svq3_get_ue_golomb(&gb);
+ int u2 = get_bits(&gb, 8);
+ int u3 = get_bits(&gb, 2);
+ int u4 = svq3_get_ue_golomb(&gb);
+ unsigned long buf_len = watermark_width*watermark_height*4;
+ int offset = (get_bits_count(&gb)+7)>>3;
+ uint8_t *buf;
+
+ if ((uint64_t)watermark_width*4 > UINT_MAX/watermark_height)
+ return -1;
+
+ buf = av_malloc(buf_len);
+ av_log(avctx, AV_LOG_DEBUG, "watermark size: %dx%d\n", watermark_width, watermark_height);
+ av_log(avctx, AV_LOG_DEBUG, "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n", u1, u2, u3, u4, offset);
+ if (uncompress(buf, &buf_len, extradata + 8 + offset, size - offset) != Z_OK) {
+ av_log(avctx, AV_LOG_ERROR, "could not uncompress watermark logo\n");
+ av_free(buf);
+ return -1;
+ }
+ svq3->watermark_key = ff_svq1_packet_checksum(buf, buf_len, 0);
+ svq3->watermark_key = svq3->watermark_key << 16 | svq3->watermark_key;
+ av_log(avctx, AV_LOG_DEBUG, "watermark key %#x\n", svq3->watermark_key);
+ av_free(buf);
+#else
+ av_log(avctx, AV_LOG_ERROR, "this svq3 file contains watermark which need zlib support compiled in\n");
+ return -1;
+#endif
+ }
+ }
-static int svq3_decode_frame (AVCodecContext *avctx,
- void *data, int *data_size,
- const uint8_t *buf, int buf_size) {
- MpegEncContext *const s = avctx->priv_data;
- H264Context *const h = avctx->priv_data;
- int m, mb_type;
- unsigned char *extradata;
- unsigned int size;
-
- s->flags = avctx->flags;
- s->flags2 = avctx->flags2;
- s->unrestricted_mv = 1;
-
- if (!s->context_initialized) {
- s->width = avctx->width;
- s->height = avctx->height;
- h->halfpel_flag = 1;
- h->thirdpel_flag = 1;
- h->unknown_svq3_flag = 0;
- h->chroma_qp[0] = h->chroma_qp[1] = 4;
-
- if (MPV_common_init (s) < 0)
- return -1;
-
- h->b_stride = 4*s->mb_width;
-
- alloc_tables (h);
-
- /* prowl for the "SEQH" marker in the extradata */
- extradata = (unsigned char *)avctx->extradata;
- for (m = 0; m < avctx->extradata_size; m++) {
- if (!memcmp (extradata, "SEQH", 4))
- break;
- extradata++;
+static int svq3_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ AVPacket *avpkt)
+{
+ const uint8_t *buf = avpkt->data;
+ SVQ3Context *svq3 = avctx->priv_data;
+ H264Context *h = &svq3->h;
+ MpegEncContext *s = &h->s;
+ int buf_size = avpkt->size;
+ int m, mb_type;
+
+ /* special case for last picture */
+ if (buf_size == 0) {
+ if (s->next_picture_ptr && !s->low_delay) {
+ *(AVFrame *) data = *(AVFrame *) &s->next_picture;
+ s->next_picture_ptr = NULL;
+ *data_size = sizeof(AVFrame);
+ }
+ return 0;
- buf = av_malloc(buf_len);
- av_log(avctx, AV_LOG_DEBUG, "watermark size: %dx%d\n", watermark_width, watermark_height);
- av_log(avctx, AV_LOG_DEBUG, "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n", u1, u2, u3, u4, offset);
- if (uncompress(buf, (uLong*)&buf_len, extradata + 8 + offset, size - offset) != Z_OK) {
- av_log(avctx, AV_LOG_ERROR, "could not uncompress watermark logo\n");
- av_free(buf);
- return -1;
- }
- h->svq3_watermark_key = ff_svq1_packet_checksum(buf, buf_len, 0);
- h->svq3_watermark_key = h->svq3_watermark_key << 16 | h->svq3_watermark_key;
- av_log(avctx, AV_LOG_DEBUG, "watermark key %#x\n", h->svq3_watermark_key);
- av_free(buf);
-#else
- av_log(avctx, AV_LOG_ERROR, "this svq3 file contains watermark which need zlib support compiled in\n");
- return -1;
-#endif
- }
- }
- }
-
- /* special case for last picture */
- if (buf_size == 0) {
- if (s->next_picture_ptr && !s->low_delay) {
- *(AVFrame *) data = *(AVFrame *) &s->next_picture;
- s->next_picture_ptr= NULL;
- *data_size = sizeof(AVFrame);
- }
- return 0;
- }
-
- init_get_bits (&s->gb, buf, 8*buf_size);
-
- s->mb_x = s->mb_y = h->mb_xy = 0;
-
- if (svq3_decode_slice_header (h))
- return -1;
-
- s->pict_type = h->slice_type;
- s->picture_number = h->slice_num;
-
- if(avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\n",
- av_get_pict_type_char(s->pict_type), h->halfpel_flag, h->thirdpel_flag,
- s->adaptive_quant, s->qscale, h->slice_num
- );
- }
-
- /* for hurry_up==5 */
- s->current_picture.pict_type = s->pict_type;
- s->current_picture.key_frame = (s->pict_type == FF_I_TYPE);
-
- /* Skip B-frames if we do not have reference frames. */
- if (s->last_picture_ptr == NULL && s->pict_type == FF_B_TYPE) return 0;
- /* Skip B-frames if we are in a hurry. */
- if (avctx->hurry_up && s->pict_type == FF_B_TYPE) return 0;
- /* Skip everything if we are in a hurry >= 5. */
- if (avctx->hurry_up >= 5) return 0;
- if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)
- ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)
- || avctx->skip_frame >= AVDISCARD_ALL)
- return 0;
-
- if (s->next_p_frame_damaged) {
- if (s->pict_type == FF_B_TYPE)
- return 0;
- else
- s->next_p_frame_damaged = 0;
- }
+ s->mb_x = s->mb_y = h->mb_xy = 0;