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ffmpeg.wasm-core
Commit 12f13ecb authored by Anton Khirnov's avatar Anton Khirnov
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svq3: move mb strides/sizes to the SVQ3Context

parent ad9d3384
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Showing with 52 additions and 51 deletions
libavcodec/svq3.c
View file @ 12f13ecb
......@@ -93,6 +93,9 @@ typedef struct SVQ3Context {
int mb_x, mb_y;
int mb_xy;
int mb_width, mb_height;
int mb_stride, mb_num;
int b_stride;
uint32_t *mb2br_xy;
......@@ -477,7 +480,7 @@ 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 * s->mb_x + (j >> 2)) +
(4 * s->mb_y + (i >> 2)) * h->b_stride;
(4 * s->mb_y + (i >> 2)) * s->b_stride;
int dxy;
x = 16 * s->mb_x + j;
y = 16 * s->mb_y + i;
......@@ -570,7 +573,7 @@ static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode,
/* write back motion vectors */
fill_rectangle(h->cur_pic.motion_val[dir][b_xy],
part_width >> 2, part_height >> 2, h->b_stride,
part_width >> 2, part_height >> 2, s->b_stride,
pack16to32(mx, my), 4);
}
......@@ -695,7 +698,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
uint32_t vlc;
int8_t *top, *left;
const int mb_xy = s->mb_xy;
const int b_xy = 4 * s->mb_x + 4 * s->mb_y * h->b_stride;
const int b_xy = 4 * s->mb_x + 4 * s->mb_y * s->b_stride;
s->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF;
s->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF;
......@@ -743,31 +746,31 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
if (s->mb_x > 0 && s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - 1] + 6] != -1) {
for (i = 0; i < 4; i++)
AV_COPY32(s->mv_cache[m][scan8[0] - 1 + i * 8],
h->cur_pic.motion_val[m][b_xy - 1 + i * h->b_stride]);
h->cur_pic.motion_val[m][b_xy - 1 + i * s->b_stride]);
} else {
for (i = 0; i < 4; i++)
AV_ZERO32(s->mv_cache[m][scan8[0] - 1 + i * 8]);
}
if (s->mb_y > 0) {
memcpy(s->mv_cache[m][scan8[0] - 1 * 8],
h->cur_pic.motion_val[m][b_xy - h->b_stride],
h->cur_pic.motion_val[m][b_xy - s->b_stride],
4 * 2 * sizeof(int16_t));
memset(&s->ref_cache[m][scan8[0] - 1 * 8],
(s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1, 4);
(s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1, 4);
if (s->mb_x < h->mb_width - 1) {
if (s->mb_x < s->mb_width - 1) {
AV_COPY32(s->mv_cache[m][scan8[0] + 4 - 1 * 8],
h->cur_pic.motion_val[m][b_xy - h->b_stride + 4]);
h->cur_pic.motion_val[m][b_xy - s->b_stride + 4]);
s->ref_cache[m][scan8[0] + 4 - 1 * 8] =
(s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride + 1] + 6] == -1 ||
s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1;
(s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride + 1] + 6] == -1 ||
s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride]] == -1) ? PART_NOT_AVAILABLE : 1;
} else
s->ref_cache[m][scan8[0] + 4 - 1 * 8] = PART_NOT_AVAILABLE;
if (s->mb_x > 0) {
AV_COPY32(s->mv_cache[m][scan8[0] - 1 - 1 * 8],
h->cur_pic.motion_val[m][b_xy - h->b_stride - 1]);
h->cur_pic.motion_val[m][b_xy - s->b_stride - 1]);
s->ref_cache[m][scan8[0] - 1 - 1 * 8] =
(s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride - 1] + 3] == -1) ? PART_NOT_AVAILABLE : 1;
(s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride - 1] + 3] == -1) ? PART_NOT_AVAILABLE : 1;
} else
s->ref_cache[m][scan8[0] - 1 - 1 * 8] = PART_NOT_AVAILABLE;
} else
......@@ -788,7 +791,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
return -1;
} else {
for (i = 0; i < 4; i++)
memset(h->cur_pic.motion_val[0][b_xy + i * h->b_stride],
memset(h->cur_pic.motion_val[0][b_xy + i * s->b_stride],
0, 4 * 2 * sizeof(int16_t));
}
if (mb_type != 1) {
......@@ -796,7 +799,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
return -1;
} else {
for (i = 0; i < 4; i++)
memset(h->cur_pic.motion_val[1][b_xy + i * h->b_stride],
memset(h->cur_pic.motion_val[1][b_xy + i * s->b_stride],
0, 4 * 2 * sizeof(int16_t));
}
}
......@@ -816,10 +819,10 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
s->left_samples_available = 0x5F5F;
}
if (s->mb_y > 0) {
s->intra4x4_pred_mode_cache[4 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride] + 0];
s->intra4x4_pred_mode_cache[5 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride] + 1];
s->intra4x4_pred_mode_cache[6 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride] + 2];
s->intra4x4_pred_mode_cache[7 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride] + 3];
s->intra4x4_pred_mode_cache[4 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 0];
s->intra4x4_pred_mode_cache[5 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 1];
s->intra4x4_pred_mode_cache[6 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 2];
s->intra4x4_pred_mode_cache[7 + 8 * 0] = s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride] + 3];
if (s->intra4x4_pred_mode_cache[4 + 8 * 0] == -1)
s->top_samples_available = 0x33FF;
......@@ -888,11 +891,11 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
if (!IS_INTER(mb_type) && h->pict_type != AV_PICTURE_TYPE_I) {
for (i = 0; i < 4; i++)
memset(h->cur_pic.motion_val[0][b_xy + i * h->b_stride],
memset(h->cur_pic.motion_val[0][b_xy + i * s->b_stride],
0, 4 * 2 * sizeof(int16_t));
if (h->pict_type == AV_PICTURE_TYPE_B) {
for (i = 0; i < 4; i++)
memset(h->cur_pic.motion_val[1][b_xy + i * h->b_stride],
memset(h->cur_pic.motion_val[1][b_xy + i * s->b_stride],
0, 4 * 2 * sizeof(int16_t));
}
}
......@@ -1043,9 +1046,9 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
sl->slice_type = ff_h264_golomb_to_pict_type[slice_id];
if ((header & 0x9F) == 2) {
i = (h->mb_num < 64) ? 6 : (1 + av_log2(h->mb_num - 1));
i = (s->mb_num < 64) ? 6 : (1 + av_log2(s->mb_num - 1));
sl->mb_skip_run = get_bits(&h->gb, i) -
(s->mb_y * h->mb_width + s->mb_x);
(s->mb_y * s->mb_width + s->mb_x);
} else {
skip_bits1(&h->gb);
sl->mb_skip_run = 0;
......@@ -1075,11 +1078,11 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
-1, 8 * sizeof(int8_t) * s->mb_x);
}
if (s->mb_y > 0) {
memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - h->mb_stride],
-1, 8 * sizeof(int8_t) * (h->mb_width - s->mb_x));
memset(s->intra4x4_pred_mode + s->mb2br_xy[mb_xy - s->mb_stride],
-1, 8 * sizeof(int8_t) * (s->mb_width - s->mb_x));
if (s->mb_x > 0)
s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - h->mb_stride - 1] + 3] = -1;
s->intra4x4_pred_mode[s->mb2br_xy[mb_xy - s->mb_stride - 1] + 3] = -1;
}
return 0;
......@@ -1279,30 +1282,28 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx)
}
}
h->width = avctx->width;
h->height = avctx->height;
h->mb_width = (h->width + 15) / 16;
h->mb_height = (h->height + 15) / 16;
h->mb_stride = h->mb_width + 1;
h->mb_num = h->mb_width * h->mb_height;
h->b_stride = 4 * h->mb_width;
s->h_edge_pos = h->mb_width * 16;
s->v_edge_pos = h->mb_height * 16;
s->intra4x4_pred_mode = av_mallocz(h->mb_stride * 2 * 8);
s->mb_width = (avctx->width + 15) / 16;
s->mb_height = (avctx->height + 15) / 16;
s->mb_stride = s->mb_width + 1;
s->mb_num = s->mb_width * s->mb_height;
s->b_stride = 4 * s->mb_width;
s->h_edge_pos = s->mb_width * 16;
s->v_edge_pos = s->mb_height * 16;
s->intra4x4_pred_mode = av_mallocz(s->mb_stride * 2 * 8);
if (!s->intra4x4_pred_mode)
return AVERROR(ENOMEM);
s->mb2br_xy = av_mallocz(h->mb_stride * (h->mb_height + 1) *
s->mb2br_xy = av_mallocz(s->mb_stride * (s->mb_height + 1) *
sizeof(*s->mb2br_xy));
if (!s->mb2br_xy)
return AVERROR(ENOMEM);
for (y = 0; y < h->mb_height; y++)
for (x = 0; x < h->mb_width; x++) {
const int mb_xy = x + y * h->mb_stride;
for (y = 0; y < s->mb_height; y++)
for (x = 0; x < s->mb_width; x++) {
const int mb_xy = x + y * s->mb_stride;
s->mb2br_xy[mb_xy] = 8 * (mb_xy % (2 * h->mb_stride));
s->mb2br_xy[mb_xy] = 8 * (mb_xy % (2 * s->mb_stride));
}
init_dequant4_coeff_table(s);
......@@ -1327,19 +1328,19 @@ static int get_buffer(AVCodecContext *avctx, H264Picture *pic)
SVQ3Context *s = avctx->priv_data;
H264Context *h = &s->h;
H264SliceContext *sl = &h->slice_ctx[0];
const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
const int mb_array_size = h->mb_stride * h->mb_height;
const int b4_stride = h->mb_width * 4 + 1;
const int b4_array_size = b4_stride * h->mb_height * 4;
const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
const int mb_array_size = s->mb_stride * s->mb_height;
const int b4_stride = s->mb_width * 4 + 1;
const int b4_array_size = b4_stride * s->mb_height * 4;
int ret;
if (!pic->motion_val_buf[0]) {
int i;
pic->mb_type_buf = av_buffer_allocz((big_mb_num + h->mb_stride) * sizeof(uint32_t));
pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) * sizeof(uint32_t));
if (!pic->mb_type_buf)
return AVERROR(ENOMEM);
pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
for (i = 0; i < 2; i++) {
pic->motion_val_buf[i] = av_buffer_allocz(2 * (b4_array_size + 4) * sizeof(int16_t));
......@@ -1510,10 +1511,10 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
}
}
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++) {
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++) {
unsigned mb_type;
s->mb_xy = s->mb_x + s->mb_y * h->mb_stride;
s->mb_xy = s->mb_x + s->mb_y * s->mb_stride;
if ((get_bits_left(&h->gb)) <= 7) {
if (((get_bits_count(&h->gb) & 7) == 0 ||
......@@ -1541,7 +1542,7 @@ 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[s->mb_x + s->mb_y * h->mb_stride] =
h->cur_pic.mb_type[s->mb_x + s->mb_y * s->mb_stride] =
(h->pict_type == AV_PICTURE_TYPE_P && mb_type < 8) ? (mb_type - 1) : -1;
}
......
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