Skip to content

F
ffmpeg.wasm-core
Commit 1877712c authored by Anton Khirnov's avatar Anton Khirnov
Browse files
Options

svq3: move mb_{x,y,xy} to SVQ3Context 

This will allow removing the H264Context dependency in the future.
parent c2a4ca94
Show whitespace changes
Inline Side-by-side
Showing with 43 additions and 40 deletions
libavcodec/svq3.c
View file @ 1877712c
......@@ -90,6 +90,9 @@ typedef struct SVQ3Context {
int h_edge_pos;
int v_edge_pos;
int last_frame_output;
int mb_x, mb_y;
int mb_xy;
} SVQ3Context;
#define FULLPEL_MODE 1
......@@ -385,11 +388,11 @@ static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode,
for (i = 0; i < 16; i += part_height)
for (j = 0; j < 16; j += part_width) {
const int b_xy = (4 * sl->mb_x + (j >> 2)) +
(4 * sl->mb_y + (i >> 2)) * h->b_stride;
const int b_xy = (4 * s->mb_x + (j >> 2)) +
(4 * s->mb_y + (i >> 2)) * h->b_stride;
int dxy;
x = 16 * sl->mb_x + j;
y = 16 * sl->mb_y + i;
x = 16 * s->mb_x + j;
y = 16 * s->mb_y + i;
k = (j >> 2 & 1) + (i >> 1 & 2) +
(j >> 1 & 4) + (i & 8);
......@@ -526,7 +529,7 @@ static av_always_inline void hl_decode_mb_predict_luma(SVQ3Context *s,
int nnz, tr;
if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
const int topright_avail = (sl->topright_samples_available << i) & 0x8000;
assert(sl->mb_y || linesize <= block_offset[i]);
assert(s->mb_y || linesize <= block_offset[i]);
if (!topright_avail) {
tr = ptr[3 - linesize] * 0x01010101u;
topright = (uint8_t *)&tr;
......@@ -549,9 +552,9 @@ static av_always_inline void hl_decode_mb_predict_luma(SVQ3Context *s,
static void hl_decode_mb(SVQ3Context *s, const H264Context *h, H264SliceContext *sl)
{
const int mb_x = sl->mb_x;
const int mb_y = sl->mb_y;
const int mb_xy = sl->mb_xy;
const int mb_x = s->mb_x;
const int mb_y = s->mb_y;
const int mb_xy = s->mb_xy;
const int mb_type = h->cur_pic.mb_type[mb_xy];
uint8_t *dest_y, *dest_cb, *dest_cr;
int linesize, uvlinesize;
......@@ -563,8 +566,8 @@ static void hl_decode_mb(SVQ3Context *s, const H264Context *h, H264SliceContext
dest_cb = h->cur_pic.f->data[1] + mb_x * 8 + mb_y * sl->uvlinesize * block_h;
dest_cr = h->cur_pic.f->data[2] + mb_x * 8 + mb_y * sl->uvlinesize * block_h;
s->vdsp.prefetch(dest_y + (sl->mb_x & 3) * 4 * sl->linesize + 64, sl->linesize, 4);
s->vdsp.prefetch(dest_cb + (sl->mb_x & 7) * sl->uvlinesize + 64, dest_cr - dest_cb, 2);
s->vdsp.prefetch(dest_y + (s->mb_x & 3) * 4 * sl->linesize + 64, sl->linesize, 4);
s->vdsp.prefetch(dest_cb + (s->mb_x & 7) * sl->uvlinesize + 64, dest_cr - dest_cb, 2);
h->list_counts[mb_xy] = sl->list_count;
......@@ -605,21 +608,21 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
int cbp = 0;
uint32_t vlc;
int8_t *top, *left;
const int mb_xy = sl->mb_xy;
const int b_xy = 4 * sl->mb_x + 4 * sl->mb_y * h->b_stride;
const int mb_xy = s->mb_xy;
const int b_xy = 4 * s->mb_x + 4 * s->mb_y * h->b_stride;
sl->top_samples_available = (sl->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (sl->mb_x == 0) ? 0x5F5F : 0xFFFF;
sl->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
sl->topright_samples_available = 0xFFFF;
if (mb_type == 0) { /* SKIP */
if (h->pict_type == AV_PICTURE_TYPE_P ||
s->next_pic->mb_type[mb_xy] == -1) {
svq3_mc_dir_part(s, 16 * sl->mb_x, 16 * sl->mb_y, 16, 16,
svq3_mc_dir_part(s, 16 * s->mb_x, 16 * s->mb_y, 16, 16,
0, 0, 0, 0, 0, 0);
if (h->pict_type == AV_PICTURE_TYPE_B)
svq3_mc_dir_part(s, 16 * sl->mb_x, 16 * sl->mb_y, 16, 16,
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;
......@@ -651,7 +654,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
*/
for (m = 0; m < 2; m++) {
if (sl->mb_x > 0 && sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - 1] + 6] != -1) {
if (s->mb_x > 0 && sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - 1] + 6] != -1) {
for (i = 0; i < 4; i++)
AV_COPY32(sl->mv_cache[m][scan8[0] - 1 + i * 8],
h->cur_pic.motion_val[m][b_xy - 1 + i * h->b_stride]);
......@@ -659,14 +662,14 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
for (i = 0; i < 4; i++)
AV_ZERO32(sl->mv_cache[m][scan8[0] - 1 + i * 8]);
}
if (sl->mb_y > 0) {
if (s->mb_y > 0) {
memcpy(sl->mv_cache[m][scan8[0] - 1 * 8],
h->cur_pic.motion_val[m][b_xy - h->b_stride],
4 * 2 * sizeof(int16_t));
memset(&sl->ref_cache[m][scan8[0] - 1 * 8],
(sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1, 4);
if (sl->mb_x < h->mb_width - 1) {
if (s->mb_x < h->mb_width - 1) {
AV_COPY32(sl->mv_cache[m][scan8[0] + 4 - 1 * 8],
h->cur_pic.motion_val[m][b_xy - h->b_stride + 4]);
sl->ref_cache[m][scan8[0] + 4 - 1 * 8] =
......@@ -674,7 +677,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1;
} else
sl->ref_cache[m][scan8[0] + 4 - 1 * 8] = PART_NOT_AVAILABLE;
if (sl->mb_x > 0) {
if (s->mb_x > 0) {
AV_COPY32(sl->mv_cache[m][scan8[0] - 1 - 1 * 8],
h->cur_pic.motion_val[m][b_xy - h->b_stride - 1]);
sl->ref_cache[m][scan8[0] - 1 - 1 * 8] =
......@@ -714,19 +717,19 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
mb_type = MB_TYPE_16x16;
} else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */
int8_t *i4x4 = sl->intra4x4_pred_mode + h->mb2br_xy[sl->mb_xy];
int8_t *i4x4 = sl->intra4x4_pred_mode + h->mb2br_xy[s->mb_xy];
int8_t *i4x4_cache = sl->intra4x4_pred_mode_cache;
memset(sl->intra4x4_pred_mode_cache, -1, 8 * 5 * sizeof(int8_t));
if (mb_type == 8) {
if (sl->mb_x > 0) {
if (s->mb_x > 0) {
for (i = 0; i < 4; i++)
sl->intra4x4_pred_mode_cache[scan8[0] - 1 + i * 8] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - 1] + 6 - i];
if (sl->intra4x4_pred_mode_cache[scan8[0] - 1] == -1)
sl->left_samples_available = 0x5F5F;
}
if (sl->mb_y > 0) {
if (s->mb_y > 0) {
sl->intra4x4_pred_mode_cache[4 + 8 * 0] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride] + 0];
sl->intra4x4_pred_mode_cache[5 + 8 * 0] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride] + 1];
sl->intra4x4_pred_mode_cache[6 + 8 * 0] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride] + 2];
......@@ -770,8 +773,8 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
if (mb_type == 8) {
ff_h264_check_intra4x4_pred_mode(h, sl);
sl->top_samples_available = (sl->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (sl->mb_x == 0) ? 0x5F5F : 0xFFFF;
sl->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
} else {
for (i = 0; i < 4; i++)
memset(&sl->intra4x4_pred_mode_cache[scan8[0] + 8 * i], DC_128_PRED, 4);
......@@ -899,7 +902,7 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
SVQ3Context *s = avctx->priv_data;
H264Context *h = &s->h;
H264SliceContext *sl = &h->slice_ctx[0];
const int mb_xy = sl->mb_xy;
const int mb_xy = s->mb_xy;
int i, header;
unsigned slice_id;
......@@ -952,7 +955,7 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
if ((header & 0x9F) == 2) {
i = (h->mb_num < 64) ? 6 : (1 + av_log2(h->mb_num - 1));
sl->mb_skip_run = get_bits(&h->gb, i) -
(sl->mb_y * h->mb_width + sl->mb_x);
(s->mb_y * h->mb_width + s->mb_x);
} else {
skip_bits1(&h->gb);
sl->mb_skip_run = 0;
......@@ -975,17 +978,17 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
skip_bits(&h->gb, 8);
/* reset intra predictors and invalidate motion vector references */
if (sl->mb_x > 0) {
if (s->mb_x > 0) {
memset(sl->intra4x4_pred_mode + h->mb2br_xy[mb_xy - 1] + 3,
-1, 4 * sizeof(int8_t));
memset(sl->intra4x4_pred_mode + h->mb2br_xy[mb_xy - sl->mb_x],
-1, 8 * sizeof(int8_t) * sl->mb_x);
memset(sl->intra4x4_pred_mode + h->mb2br_xy[mb_xy - s->mb_x],
-1, 8 * sizeof(int8_t) * s->mb_x);
}
if (sl->mb_y > 0) {
if (s->mb_y > 0) {
memset(sl->intra4x4_pred_mode + h->mb2br_xy[mb_xy - h->mb_stride],
-1, 8 * sizeof(int8_t) * (h->mb_width - sl->mb_x));
-1, 8 * sizeof(int8_t) * (h->mb_width - s->mb_x));
if (sl->mb_x > 0)
if (s->mb_x > 0)
sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride - 1] + 3] = -1;
}
......@@ -1284,7 +1287,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
if (ret < 0)
return ret;
sl->mb_x = sl->mb_y = sl->mb_xy = 0;
s->mb_x = s->mb_y = s->mb_xy = 0;
if (svq3_decode_slice_header(avctx))
return -1;
......@@ -1393,10 +1396,10 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
}
}
for (sl->mb_y = 0; sl->mb_y < h->mb_height; sl->mb_y++) {
for (sl->mb_x = 0; sl->mb_x < h->mb_width; sl->mb_x++) {
for (s->mb_y = 0; s->mb_y < h->mb_height; s->mb_y++) {
for (s->mb_x = 0; s->mb_x < h->mb_width; s->mb_x++) {
unsigned mb_type;
sl->mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
s->mb_xy = s->mb_x + s->mb_y * h->mb_stride;
if ((get_bits_left(&h->gb)) <= 7) {
if (((get_bits_count(&h->gb) & 7) == 0 ||
......@@ -1416,7 +1419,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
mb_type += 4;
if (mb_type > 33 || svq3_decode_mb(s, mb_type)) {
av_log(h->avctx, AV_LOG_ERROR,
"error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
"error while decoding MB %d %d\n", s->mb_x, s->mb_y);
return -1;
}
......@@ -1424,13 +1427,13 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
hl_decode_mb(s, h, &h->slice_ctx[0]);
if (h->pict_type != AV_PICTURE_TYPE_B && !h->low_delay)
h->cur_pic.mb_type[sl->mb_x + sl->mb_y * h->mb_stride] =
h->cur_pic.mb_type[s->mb_x + s->mb_y * h->mb_stride] =
(h->pict_type == AV_PICTURE_TYPE_P && mb_type < 8) ? (mb_type - 1) : -1;
}
ff_draw_horiz_band(avctx, s->cur_pic->f,
s->last_pic->f->data[0] ? s->last_pic->f : NULL,
16 * sl->mb_y, 16, h->picture_structure, 0,
16 * s->mb_y, 16, h->picture_structure, 0,
h->low_delay);
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment