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vp9: fix segmentation map retention with threading enabled.

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Fixes ticket 4359.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Ronald S. Bultje
2015-03-06 21:07:54 -05:00
committed by Michael Niedermayer
parent 6f51cb514b
commit efff3854f0
1 changed files with 13 additions and 3 deletions
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16
libavcodec/vp9.c
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@@ -279,7 +279,8 @@ static int vp9_alloc_frame(AVCodecContext *ctx, VP9Frame *f)
// retain segmentation map if it doesn't update
if (s->segmentation.enabled && !s->segmentation.update_map &&
!s->intraonly && !s->keyframe && !s->errorres) {
!s->intraonly && !s->keyframe && !s->errorres &&
ctx->active_thread_type != FF_THREAD_FRAME) {
memcpy(f->segmentation_map, s->frames[LAST_FRAME].segmentation_map, sz);
}
@@ -1351,9 +1352,18 @@ static void decode_mode(AVCodecContext *ctx)
if (!s->last_uses_2pass)
ff_thread_await_progress(&s->frames[LAST_FRAME].tf, row >> 3, 0);
for (y = 0; y < h4; y++)
for (y = 0; y < h4; y++) {
int idx_base = (y + row) * 8 * s->sb_cols + col;
for (x = 0; x < w4; x++)
pred = FFMIN(pred, refsegmap[(y + row) * 8 * s->sb_cols + x + col]);
pred = FFMIN(pred, refsegmap[idx_base + x]);
if (!s->segmentation.update_map && ctx->active_thread_type == FF_THREAD_FRAME) {
// FIXME maybe retain reference to previous frame as
// segmap reference instead of copying the whole map
// into a new buffer
memcpy(&s->frames[CUR_FRAME].segmentation_map[idx_base],
&refsegmap[idx_base], w4);
}
}
av_assert1(pred < 8);
b->seg_id = pred;
} else {