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Diffstat (limited to 'src/libffmpeg/libavcodec/svq3.c')
-rw-r--r--src/libffmpeg/libavcodec/svq3.c394
1 files changed, 197 insertions, 197 deletions
diff --git a/src/libffmpeg/libavcodec/svq3.c b/src/libffmpeg/libavcodec/svq3.c
index f0f995acf..cfe7f7d22 100644
--- a/src/libffmpeg/libavcodec/svq3.c
+++ b/src/libffmpeg/libavcodec/svq3.c
@@ -13,7 +13,7 @@
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
* How to use this decoder:
@@ -26,10 +26,10 @@
* the calling app must make the SVQ3 ImageDescription atom available
* via the AVCodecContext's extradata[_size] field:
*
- * AVCodecContext.extradata = pointer to ImageDescription, first characters
+ * AVCodecContext.extradata = pointer to ImageDescription, first characters
* are expected to be 'S', 'V', 'Q', and '3', NOT the 4-byte atom length
- * AVCodecContext.extradata_size = size of ImageDescription atom memory
- * buffer (which will be the same as the ImageDescription atom size field
+ * AVCodecContext.extradata_size = size of ImageDescription atom memory
+ * buffer (which will be the same as the ImageDescription atom size field
* from the QT file, minus 4 bytes since the length is missing)
*
* You will know you have these parameters passed correctly when the decoder
@@ -37,24 +37,24 @@
* ftp://ftp.mplayerhq.hu/MPlayer/samples/V-codecs/SVQ3/Vertical400kbit.sorenson3.mov
*
*/
-
+
/**
* @file svq3.c
* svq3 decoder.
*/
-#define FULLPEL_MODE 1
-#define HALFPEL_MODE 2
+#define FULLPEL_MODE 1
+#define HALFPEL_MODE 2
#define THIRDPEL_MODE 3
#define PREDICT_MODE 4
-
+
/* dual scan (from some older h264 draft)
o-->o-->o o
| /|
o o o / o
| / | |/ |
o o o o
- /
+ /
o-->o-->o-->o
*/
static const uint8_t svq3_scan[16]={
@@ -179,8 +179,8 @@ static void svq3_add_idct_c (uint8_t *dst, DCTELEM *block, int stride, int qp, i
}
static void pred4x4_down_left_svq3_c(uint8_t *src, uint8_t *topright, int stride){
- LOAD_TOP_EDGE
- LOAD_LEFT_EDGE
+ LOAD_TOP_EDGE
+ LOAD_LEFT_EDGE
const __attribute__((unused)) int unu0= t0;
const __attribute__((unused)) int unu1= l0;
@@ -207,7 +207,7 @@ static void pred16x16_plane_svq3_c(uint8_t *src, int stride){
}
static inline int svq3_decode_block (GetBitContext *gb, DCTELEM *block,
- int index, const int type) {
+ int index, const int type) {
static const uint8_t *const scan_patterns[4] =
{ luma_dc_zigzag_scan, zigzag_scan, svq3_scan, chroma_dc_scan };
@@ -220,37 +220,37 @@ static inline int svq3_decode_block (GetBitContext *gb, DCTELEM *block,
for (; (vlc = svq3_get_ue_golomb (gb)) != 0; index++) {
if (vlc == INVALID_VLC)
- return -1;
+ return -1;
sign = (vlc & 0x1) - 1;
vlc = (vlc + 1) >> 1;
if (type == 3) {
- if (vlc < 3) {
- run = 0;
- level = vlc;
- } else if (vlc < 4) {
- run = 1;
- level = 1;
- } else {
- run = (vlc & 0x3);
- level = ((vlc + 9) >> 2) - run;
- }
+ if (vlc < 3) {
+ run = 0;
+ level = vlc;
+ } else if (vlc < 4) {
+ run = 1;
+ level = 1;
+ } else {
+ run = (vlc & 0x3);
+ level = ((vlc + 9) >> 2) - run;
+ }
} else {
- if (vlc < 16) {
- run = svq3_dct_tables[intra][vlc].run;
- level = svq3_dct_tables[intra][vlc].level;
- } else if (intra) {
- run = (vlc & 0x7);
- level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1)));
- } else {
- run = (vlc & 0xF);
- level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0)));
- }
+ if (vlc < 16) {
+ run = svq3_dct_tables[intra][vlc].run;
+ level = svq3_dct_tables[intra][vlc].level;
+ } else if (intra) {
+ run = (vlc & 0x7);
+ level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1)));
+ } else {
+ run = (vlc & 0xF);
+ level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0)));
+ }
}
if ((index += run) >= limit)
- return -1;
+ return -1;
block[scan[index]] = (level ^ sign) - sign;
}
@@ -264,9 +264,9 @@ static inline int svq3_decode_block (GetBitContext *gb, DCTELEM *block,
}
static inline void svq3_mc_dir_part (MpegEncContext *s,
- int x, int y, int width, int height,
- int mx, int my, int dxy,
- int thirdpel, int dir, int avg) {
+ int x, int y, int width, int height,
+ int mx, int my, int dxy,
+ int thirdpel, int dir, int avg) {
const Picture *pic = (dir == 0) ? &s->last_picture : &s->next_picture;
uint8_t *src, *dest;
@@ -275,7 +275,7 @@ static inline void svq3_mc_dir_part (MpegEncContext *s,
mx += x;
my += y;
-
+
if (mx < 0 || mx >= (s->h_edge_pos - width - 1) ||
my < 0 || my >= (s->v_edge_pos - height - 1)) {
@@ -293,7 +293,7 @@ static inline void svq3_mc_dir_part (MpegEncContext *s,
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);
+ mx, my, s->h_edge_pos, s->v_edge_pos);
src = s->edge_emu_buffer;
}
if(thirdpel)
@@ -302,8 +302,8 @@ static inline void svq3_mc_dir_part (MpegEncContext *s,
(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;
+ mx = (mx + (mx < (int) x)) >> 1;
+ my = (my + (my < (int) y)) >> 1;
width = (width >> 1);
height = (height >> 1);
blocksize++;
@@ -314,7 +314,7 @@ static inline void svq3_mc_dir_part (MpegEncContext *s,
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));
+ mx, my, (s->h_edge_pos >> 1), (s->v_edge_pos >> 1));
src = s->edge_emu_buffer;
}
if(thirdpel)
@@ -344,18 +344,18 @@ static inline int svq3_mc_dir (H264Context *h, int size, int mode, int dir, int
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);
+ 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;
- }
+ 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;
+ }
}
/* clip motion vector prediction to frame border */
@@ -364,63 +364,63 @@ static inline int svq3_mc_dir (H264Context *h, int size, int mode, int dir, int
/* get (optional) motion vector differential */
if (mode == PREDICT_MODE) {
- dx = dy = 0;
+ dx = dy = 0;
} else {
- dy = svq3_get_se_golomb (&s->gb);
- dx = svq3_get_se_golomb (&s->gb);
+ dy = svq3_get_se_golomb (&s->gb);
+ dx = svq3_get_se_golomb (&s->gb);
- if (dx == INVALID_VLC || dy == INVALID_VLC) {
+ if (dx == INVALID_VLC || dy == INVALID_VLC) {
av_log(h->s.avctx, AV_LOG_ERROR, "invalid MV vlc\n");
- return -1;
- }
+ 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;
+ 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);
+ 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;
+ 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;
+ 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;
+ 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;
- }
+ 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 */
@@ -440,16 +440,16 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
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;
+ 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 (mb_type == 0) { /* SKIP */
if (s->pict_type == P_TYPE || s->next_picture.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 == B_TYPE) {
- svq3_mc_dir_part (s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 1, 1);
+ 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;
@@ -462,7 +462,7 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
mb_type = MB_TYPE_16x16;
}
- } else if (mb_type < 8) { /* INTER */
+ } else if (mb_type < 8) { /* INTER */
if (h->thirdpel_flag && h->halfpel_flag == !get_bits (&s->gb, 1)) {
mode = THIRDPEL_MODE;
} else if (h->halfpel_flag && h->thirdpel_flag == !get_bits (&s->gb, 1)) {
@@ -480,110 +480,110 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
N??11111
N
*/
-
+
for (m=0; m < 2; m++) {
if (s->mb_x > 0 && h->intra4x4_pred_mode[mb_xy - 1][0] != -1) {
- for (i=0; i < 4; i++) {
- *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - 1 + i*h->b_stride];
- }
+ for (i=0; i < 4; i++) {
+ *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - 1 + i*h->b_stride];
+ }
} else {
- for (i=0; i < 4; i++) {
- *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = 0;
- }
+ for (i=0; i < 4; i++) {
+ *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = 0;
+ }
}
if (s->mb_y > 0) {
- memcpy (h->mv_cache[m][scan8[0] - 1*8], s->current_picture.motion_val[m][b_xy - h->b_stride], 4*2*sizeof(int16_t));
- memset (&h->ref_cache[m][scan8[0] - 1*8], (h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1, 4);
-
- if (s->mb_x < (s->mb_width - 1)) {
- *(uint32_t *) h->mv_cache[m][scan8[0] + 4 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride + 4];
- h->ref_cache[m][scan8[0] + 4 - 1*8] =
- (h->intra4x4_pred_mode[mb_xy - s->mb_stride + 1][0] == -1 ||
- h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1;
- }else
- h->ref_cache[m][scan8[0] + 4 - 1*8] = PART_NOT_AVAILABLE;
- if (s->mb_x > 0) {
- *(uint32_t *) h->mv_cache[m][scan8[0] - 1 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride - 1];
- h->ref_cache[m][scan8[0] - 1 - 1*8] = (h->intra4x4_pred_mode[mb_xy - s->mb_stride - 1][3] == -1) ? PART_NOT_AVAILABLE : 1;
- }else
- h->ref_cache[m][scan8[0] - 1 - 1*8] = PART_NOT_AVAILABLE;
+ memcpy (h->mv_cache[m][scan8[0] - 1*8], s->current_picture.motion_val[m][b_xy - h->b_stride], 4*2*sizeof(int16_t));
+ memset (&h->ref_cache[m][scan8[0] - 1*8], (h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1, 4);
+
+ if (s->mb_x < (s->mb_width - 1)) {
+ *(uint32_t *) h->mv_cache[m][scan8[0] + 4 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride + 4];
+ h->ref_cache[m][scan8[0] + 4 - 1*8] =
+ (h->intra4x4_pred_mode[mb_xy - s->mb_stride + 1][0] == -1 ||
+ h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1;
+ }else
+ h->ref_cache[m][scan8[0] + 4 - 1*8] = PART_NOT_AVAILABLE;
+ if (s->mb_x > 0) {
+ *(uint32_t *) h->mv_cache[m][scan8[0] - 1 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride - 1];
+ h->ref_cache[m][scan8[0] - 1 - 1*8] = (h->intra4x4_pred_mode[mb_xy - s->mb_stride - 1][3] == -1) ? PART_NOT_AVAILABLE : 1;
+ }else
+ h->ref_cache[m][scan8[0] - 1 - 1*8] = PART_NOT_AVAILABLE;
}else
- memset (&h->ref_cache[m][scan8[0] - 1*8 - 1], PART_NOT_AVAILABLE, 8);
+ memset (&h->ref_cache[m][scan8[0] - 1*8 - 1], PART_NOT_AVAILABLE, 8);
if (s->pict_type != B_TYPE)
- break;
+ break;
}
/* decode motion vector(s) and form prediction(s) */
if (s->pict_type == P_TYPE) {
if(svq3_mc_dir (h, (mb_type - 1), mode, 0, 0) < 0)
return -1;
- } else { /* B_TYPE */
+ } else { /* B_TYPE */
if (mb_type != 2) {
- if(svq3_mc_dir (h, 0, mode, 0, 0) < 0)
+ if(svq3_mc_dir (h, 0, mode, 0, 0) < 0)
return -1;
} else {
- for (i=0; i < 4; i++) {
- memset (s->current_picture.motion_val[0][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t));
- }
+ for (i=0; i < 4; i++) {
+ memset (s->current_picture.motion_val[0][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t));
+ }
}
if (mb_type != 1) {
- if(svq3_mc_dir (h, 0, mode, 1, (mb_type == 3)) < 0)
+ if(svq3_mc_dir (h, 0, mode, 1, (mb_type == 3)) < 0)
return -1;
} else {
- for (i=0; i < 4; i++) {
- memset (s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t));
- }
+ for (i=0; i < 4; i++) {
+ memset (s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t));
+ }
}
}
mb_type = MB_TYPE_16x16;
- } else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */
+ } 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[mb_xy - 1][i];
- }
- if (h->intra4x4_pred_mode_cache[scan8[0] - 1] == -1) {
- h->left_samples_available = 0x5F5F;
- }
+ for (i=0; i < 4; i++) {
+ h->intra4x4_pred_mode_cache[scan8[0] - 1 + i*8] = h->intra4x4_pred_mode[mb_xy - 1][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[mb_xy - s->mb_stride][4];
- h->intra4x4_pred_mode_cache[5+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][5];
- h->intra4x4_pred_mode_cache[6+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][6];
- h->intra4x4_pred_mode_cache[7+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][3];
-
- if (h->intra4x4_pred_mode_cache[4+8*0] == -1) {
- h->top_samples_available = 0x33FF;
- }
+ h->intra4x4_pred_mode_cache[4+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][4];
+ h->intra4x4_pred_mode_cache[5+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][5];
+ h->intra4x4_pred_mode_cache[6+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][6];
+ h->intra4x4_pred_mode_cache[7+8*0] = h->intra4x4_pred_mode[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);
+ vlc = svq3_get_ue_golomb (&s->gb);
- if (vlc >= 25){
+ if (vlc >= 25){
av_log(h->s.avctx, AV_LOG_ERROR, "luma prediction:%d\n", vlc);
- return -1;
+ return -1;
}
- left = &h->intra4x4_pred_mode_cache[scan8[i] - 1];
- top = &h->intra4x4_pred_mode_cache[scan8[i] - 8];
+ 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]];
+ 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){
+ if (left[1] == -1 || left[2] == -1){
av_log(h->s.avctx, AV_LOG_ERROR, "weird prediction\n");
- return -1;
+ return -1;
}
}
- } else { /* mb_type == 33, DC_128_PRED block type */
+ } 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);
+ memset (&h->intra4x4_pred_mode_cache[scan8[0] + 8*i], DC_PRED, 4);
}
}
@@ -604,7 +604,7 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
}
mb_type = MB_TYPE_INTRA4x4;
- } else { /* INTRA16x16 */
+ } else { /* INTRA16x16 */
dir = i_mb_type_info[mb_type - 8].pred_mode;
dir = (dir >> 1) ^ 3*(dir & 1) ^ 1;
@@ -623,7 +623,7 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
}
if (s->pict_type == B_TYPE) {
for (i=0; i < 4; i++) {
- memset (s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t));
+ memset (s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t));
}
}
}
@@ -664,35 +664,35 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {
for (i=0; i < 4; i++) {
if ((cbp & (1 << i))) {
- for (j=0; j < 4; j++) {
- k = index ? ((j&1) + 2*(i&1) + 2*(j&2) + 4*(i&2)) : (4*i + j);
- h->non_zero_count_cache[ scan8[k] ] = 1;
+ for (j=0; j < 4; j++) {
+ k = index ? ((j&1) + 2*(i&1) + 2*(j&2) + 4*(i&2)) : (4*i + j);
+ h->non_zero_count_cache[ scan8[k] ] = 1;
- if (svq3_decode_block (&s->gb, &h->mb[16*k], index, type)){
+ if (svq3_decode_block (&s->gb, &h->mb[16*k], index, type)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding block\n");
- return -1;
+ return -1;
}
- }
+ }
}
}
if ((cbp & 0x30)) {
for (i=0; i < 2; ++i) {
- if (svq3_decode_block (&s->gb, &h->mb[16*(16 + 4*i)], 0, 3)){
+ if (svq3_decode_block (&s->gb, &h->mb[16*(16 + 4*i)], 0, 3)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma dc block\n");
- return -1;
+ return -1;
}
}
if ((cbp & 0x20)) {
- for (i=0; i < 8; i++) {
- h->non_zero_count_cache[ scan8[16+i] ] = 1;
+ for (i=0; i < 8; i++) {
+ h->non_zero_count_cache[ scan8[16+i] ] = 1;
- if (svq3_decode_block (&s->gb, &h->mb[16*(16 + i)], 1, 1)){
+ if (svq3_decode_block (&s->gb, &h->mb[16*(16 + i)], 1, 1)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma ac block\n");
- return -1;
+ return -1;
}
- }
+ }
}
}
}
@@ -786,8 +786,8 @@ static int svq3_decode_slice_header (H264Context *h) {
}
static int svq3_decode_frame (AVCodecContext *avctx,
- void *data, int *data_size,
- uint8_t *buf, int buf_size) {
+ void *data, int *data_size,
+ uint8_t *buf, int buf_size) {
MpegEncContext *const s = avctx->priv_data;
H264Context *const h = avctx->priv_data;
int m, mb_type;
@@ -829,12 +829,12 @@ static int svq3_decode_frame (AVCodecContext *avctx,
GetBitContext gb;
size = BE_32(&extradata[4]);
- init_get_bits (&gb, extradata + 8, size);
+ init_get_bits (&gb, extradata + 8, size*8);
/* 'frame size code' and optional 'width, height' */
if (get_bits (&gb, 3) == 7) {
- get_bits (&gb, 12);
- get_bits (&gb, 12);
+ get_bits (&gb, 12);
+ get_bits (&gb, 12);
}
h->halfpel_flag = get_bits1 (&gb);
@@ -852,7 +852,7 @@ static int svq3_decode_frame (AVCodecContext *avctx,
get_bits1 (&gb);
while (get_bits1 (&gb)) {
- get_bits (&gb, 8);
+ get_bits (&gb, 8);
}
h->unknown_svq3_flag = get_bits1 (&gb);
@@ -880,7 +880,7 @@ static int svq3_decode_frame (AVCodecContext *avctx,
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\n",
+ av_log(h->s.avctx, AV_LOG_DEBUG, "%c hpel:%d, tpel:%d aqp:%d qp:%d\n",
av_get_pict_type_char(s->pict_type), h->halfpel_flag, h->thirdpel_flag,
s->adaptive_quant, s->qscale
);
@@ -935,45 +935,45 @@ static int svq3_decode_frame (AVCodecContext *avctx,
for(i=0; i<4; i++){
int j;
for(j=-1; j<4; j++)
- h->ref_cache[m][scan8[0] + 8*i + j]= 1;
+ h->ref_cache[m][scan8[0] + 8*i + j]= 1;
h->ref_cache[m][scan8[0] + 8*i + j]= PART_NOT_AVAILABLE;
}
}
-
+
for (s->mb_y=0; s->mb_y < s->mb_height; s->mb_y++) {
for (s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
if ( (get_bits_count(&s->gb) + 7) >= s->gb.size_in_bits &&
- ((get_bits_count(&s->gb) & 7) == 0 || show_bits (&s->gb, (-get_bits_count(&s->gb) & 7)) == 0)) {
+ ((get_bits_count(&s->gb) & 7) == 0 || show_bits (&s->gb, (-get_bits_count(&s->gb) & 7)) == 0)) {
- skip_bits(&s->gb, h->next_slice_index - get_bits_count(&s->gb));
- s->gb.size_in_bits = 8*buf_size;
+ skip_bits(&s->gb, h->next_slice_index - get_bits_count(&s->gb));
+ s->gb.size_in_bits = 8*buf_size;
- if (svq3_decode_slice_header (h))
- return -1;
+ if (svq3_decode_slice_header (h))
+ return -1;
- /* TODO: support s->mb_skip_run */
+ /* TODO: support s->mb_skip_run */
}
mb_type = svq3_get_ue_golomb (&s->gb);
if (s->pict_type == I_TYPE) {
- mb_type += 8;
+ mb_type += 8;
} else if (s->pict_type == B_TYPE && mb_type >= 4) {
- mb_type += 4;
+ mb_type += 4;
}
if (mb_type > 33 || svq3_decode_mb (h, mb_type)) {
- av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
+ return -1;
}
if (mb_type != 0) {
- hl_decode_mb (h);
+ hl_decode_mb (h);
}
if (s->pict_type != B_TYPE && !s->low_delay) {
- s->current_picture.mb_type[s->mb_x + s->mb_y*s->mb_stride] =
- (s->pict_type == P_TYPE && mb_type < 8) ? (mb_type - 1) : -1;
+ s->current_picture.mb_type[s->mb_x + s->mb_y*s->mb_stride] =
+ (s->pict_type == P_TYPE && mb_type < 8) ? (mb_type - 1) : -1;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 21:29:20 +0000