From a3ebeb4ca0849cfc3846de79b38ae5ca6c001718 Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Thu, 30 Nov 2017 23:58:02 +0100
Subject: [PATCH] libavcodec/hevc_filter: support for all skip_loop_filter
levels.
Continues where commit 52c75d486ed5f75cbb79e5dbd07b7aef24f3071f left off.
---
doc/decoders.texi | 7 -------
libavcodec/hevc_filter.c | 29 +++++++++++++++++++++++++++--
2 files changed, 27 insertions(+), 9 deletions(-)
@@ -25,13 +25,6 @@ enabled decoders.
A description of some of the currently available video decoders
follows.
-@section hevc
-
-HEVC / H.265 decoder.
-
-Note: the @option{skip_loop_filter} option has effect only at level
-@code{all}.
-
@section rawvideo
Raw video decoder.
@@ -842,9 +842,34 @@ void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
void ff_hevc_hls_filter(HEVCContext *s, int x, int y, int ctb_size)
{
int x_end = x >= s->ps.sps->width - ctb_size;
- if (s->avctx->skip_loop_filter < AVDISCARD_ALL)
+ int skip = 0, is_n = 0;
+ switch (s->nal_unit_type) {
+ case HEVC_NAL_TRAIL_N:
+ case HEVC_NAL_TSA_N:
+ case HEVC_NAL_STSA_N:
+ case HEVC_NAL_RADL_N:
+ case HEVC_NAL_RASL_N:
+ case HEVC_NAL_VCL_N10:
+ case HEVC_NAL_VCL_N12:
+ case HEVC_NAL_VCL_N14:
+ case HEVC_NAL_BLA_N_LP:
+ case HEVC_NAL_IDR_N_LP:
+ is_n = 1;
+ break;
+ default: break;
+ }
+ if (s->avctx->skip_loop_filter >= AVDISCARD_ALL ||
+ (s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && !IS_IDR(s)) ||
+ (s->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
+ s->sh.slice_type != HEVC_SLICE_I) ||
+ (s->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
+ s->sh.slice_type == HEVC_SLICE_B) ||
+ (s->avctx->skip_loop_filter >= AVDISCARD_NONREF && is_n))
+ skip = 1;
+
+ if (!skip)
deblocking_filter_CTB(s, x, y);
- if (s->ps.sps->sao_enabled) {
+ if (s->ps.sps->sao_enabled && !skip) {
int y_end = y >= s->ps.sps->height - ctb_size;
if (y && x)
sao_filter_CTB(s, x - ctb_size, y - ctb_size);
--
2.15.1