Hi!
Attached patch fixes a part of ticket #8819.
Please comment, Carl Eugen
From 21aff2c2b8f3c5760589a99768d483b4be216bcd Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffm...@gmail.com>
Date: Sun, 26 Jul 2020 21:15:48 +0200
Subject: [PATCH] lavfi/hflip: Support Bayer pixel formats.
Fixes part of ticket #8819.
---
libavfilter/hflip.h | 1 +
libavfilter/vf_hflip.c | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/libavfilter/hflip.h b/libavfilter/hflip.h
index 204090dbb4..32356cde34 100644
--- a/libavfilter/hflip.h
+++ b/libavfilter/hflip.h
@@ -27,6 +27,7 @@
typedef struct FlipContext {
const AVClass *class;
int max_step[4]; ///< max pixel step for each plane, expressed as a number of bytes
+ int bayer; ///< 1 .. not a Bayer input format, 2 .. Bayer input format
int planewidth[4]; ///< width of each plane
int planeheight[4]; ///< height of each plane
diff --git a/libavfilter/vf_hflip.c b/libavfilter/vf_hflip.c
index b77afc77fc..77db218bda 100644
--- a/libavfilter/vf_hflip.c
+++ b/libavfilter/vf_hflip.c
@@ -138,6 +138,7 @@ static int config_props(AVFilterLink *inlink)
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
s->planeheight[0] = s->planeheight[3] = inlink->h;
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
+ s->bayer = !!(pix_desc->flags & AV_PIX_FMT_FLAG_BAYER) + 1;
nb_planes = av_pix_fmt_count_planes(inlink->format);
@@ -149,6 +150,7 @@ int ff_hflip_init(FlipContext *s, int step[4], int nb_planes)
int i;
for (i = 0; i < nb_planes; i++) {
+ step[i] *= s->bayer;
switch (step[i]) {
case 1: s->flip_line[i] = hflip_byte_c; break;
case 2: s->flip_line[i] = hflip_short_c; break;
@@ -180,7 +182,7 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
int i, plane, step;
for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
- const int width = s->planewidth[plane];
+ const int width = s->planewidth[plane] / s->bayer;
const int height = s->planeheight[plane];
const int start = (height * job ) / nb_jobs;
const int end = (height * (job+1)) / nb_jobs;
--
2.24.1
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