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vp8: use a fixed-size edge emu buffer 

The reason is the same as for e588615d93

Based on a patch by Ronald S. Bultje <rsbultje@gmail.com>
This commit is contained in:
Anton Khirnov 2014-01-20 13:12:54 +01:00
parent 33c859c142
commit e46ad30a80
2 changed files with 14 additions and 15 deletions
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25
libavcodec/vp8.c
View File

@ -45,7 +45,6 @@ static void free_buffers(VP8Context *s)
pthread_mutex_destroy(&s->thread_data[i].lock);
#endif
av_freep(&s->thread_data[i].filter_strength);
av_freep(&s->thread_data[i].edge_emu_buffer);
}
av_freep(&s->thread_data);
av_freep(&s->macroblocks_base);
@ -1161,6 +1160,7 @@ void vp8_mc_luma(VP8Context *s, VP8ThreadData *td, uint8_t *dst,
uint8_t *src = ref->f->data[0];
if (AV_RN32A(mv)) {
int src_linesize = linesize;
int mx = (mv->x << 1)&7, mx_idx = subpel_idx[0][mx];
int my = (mv->y << 1)&7, my_idx = subpel_idx[0][my];
@ -1175,12 +1175,13 @@ void vp8_mc_luma(VP8Context *s, VP8ThreadData *td, uint8_t *dst,
y_off < my_idx || y_off >= height - block_h - subpel_idx[2][my]) {
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
src - my_idx * linesize - mx_idx,
linesize, linesize,
EDGE_EMU_LINESIZE, linesize,
block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my],
x_off - mx_idx, y_off - my_idx, width, height);
src = td->edge_emu_buffer + mx_idx + linesize * my_idx;
src = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE * my_idx;
src_linesize = EDGE_EMU_LINESIZE;
}
mc_func[my_idx][mx_idx](dst, linesize, src, linesize, block_h, mx, my);
mc_func[my_idx][mx_idx](dst, linesize, src, src_linesize, block_h, mx, my);
} else {
ff_thread_await_progress(ref, (3 + y_off + block_h) >> 4, 0);
mc_func[0][0](dst, linesize, src + y_off * linesize + x_off, linesize, block_h, 0, 0);
@ -1227,19 +1228,19 @@ void vp8_mc_chroma(VP8Context *s, VP8ThreadData *td, uint8_t *dst1, uint8_t *dst
y_off < my_idx || y_off >= height - block_h - subpel_idx[2][my]) {
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
src1 - my_idx * linesize - mx_idx,
linesize, linesize,
EDGE_EMU_LINESIZE, linesize,
block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my],
x_off - mx_idx, y_off - my_idx, width, height);
src1 = td->edge_emu_buffer + mx_idx + linesize * my_idx;
mc_func[my_idx][mx_idx](dst1, linesize, src1, linesize, block_h, mx, my);
src1 = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE * my_idx;
mc_func[my_idx][mx_idx](dst1, linesize, src1, EDGE_EMU_LINESIZE, block_h, mx, my);
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
src2 - my_idx * linesize - mx_idx,
linesize, linesize,
EDGE_EMU_LINESIZE, linesize,
block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my],
x_off - mx_idx, y_off - my_idx, width, height);
src2 = td->edge_emu_buffer + mx_idx + linesize * my_idx;
mc_func[my_idx][mx_idx](dst2, linesize, src2, linesize, block_h, mx, my);
src2 = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE* my_idx;
mc_func[my_idx][mx_idx](dst2, linesize, src2, EDGE_EMU_LINESIZE, block_h, mx, my);
} else {
mc_func[my_idx][mx_idx](dst1, linesize, src1, linesize, block_h, mx, my);
mc_func[my_idx][mx_idx](dst2, linesize, src2, linesize, block_h, mx, my);
@ -1918,10 +1919,6 @@ int ff_vp8_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
s->linesize = curframe->tf.f->linesize[0];
s->uvlinesize = curframe->tf.f->linesize[1];
if (!s->thread_data[0].edge_emu_buffer)
for (i = 0; i < MAX_THREADS; i++)
s->thread_data[i].edge_emu_buffer = av_malloc(21*s->linesize);
memset(s->top_nnz, 0, s->mb_width*sizeof(*s->top_nnz));
/* Zero macroblock structures for top/top-left prediction from outside the frame. */
if (!s->mb_layout)

4
libavcodec/vp8.h
View File

@ -120,7 +120,9 @@ typedef struct VP8ThreadData {
#endif
int thread_mb_pos; // (mb_y << 16) | (mb_x & 0xFFFF)
int wait_mb_pos; // What the current thread is waiting on.
uint8_t *edge_emu_buffer;
#define EDGE_EMU_LINESIZE 32
DECLARE_ALIGNED(16, uint8_t, edge_emu_buffer)[21 * EDGE_EMU_LINESIZE];
VP8FilterStrength *filter_strength;
} VP8ThreadData;