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vp9 denoiser: force copy block when last not a reference.

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Last reference doesn't always exist when SVC layers changed dynamically.

When last is not a reference for current layer, copy block directly on
denoiser.

Change-Id: I9d98c4d6fdcfa25ba707db3333712761b5cf9ab8
This commit is contained in:
Jerome Jiang
2018-11-28 17:26:18 -08:00
parent d40a5bc8a3
commit c076467e8d
1 changed files with 7 additions and 1 deletions
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8
vp9/encoder/vp9_denoiser.c
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@@ -360,6 +360,7 @@ void vp9_denoiser_denoise(VP9_COMP *cpi, MACROBLOCK *mb, int mi_row, int mi_col,
int is_skin = 0;
int increase_denoising = 0;
int consec_zeromv = 0;
int last_is_reference = cpi->ref_frame_flags & VP9_LAST_FLAG;
mv_col = ctx->best_sse_mv.as_mv.col;
mv_row = ctx->best_sse_mv.as_mv.row;
motion_magnitude = mv_row * mv_row + mv_col * mv_col;
@@ -403,7 +404,12 @@ void vp9_denoiser_denoise(VP9_COMP *cpi, MACROBLOCK *mb, int mi_row, int mi_col,
}
if (!is_skin && denoiser->denoising_level == kDenHigh) increase_denoising = 1;
if (denoiser->denoising_level >= kDenLow && !ctx->sb_skip_denoising)
// Copy block if LAST_FRAME is not a reference.
// Last doesn't always exist when SVC layers are dynamically changed, e.g. top
// spatial layer doesn't have last reference when it's brought up for the
// first time on the fly.
if (last_is_reference && denoiser->denoising_level >= kDenLow &&
!ctx->sb_skip_denoising)
decision = perform_motion_compensation(
&cpi->common, denoiser, mb, bs, increase_denoising, mi_row, mi_col, ctx,
motion_magnitude, is_skin, &zeromv_filter, consec_zeromv,