Hi!
Attached patch slightly improves the saturation of the gdv palette.
Please comment, Carl Eugen
From bbc00affb218ebe2b8074fea514bf25bbca5f890 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffm...@gmail.com>
Date: Sat, 26 Aug 2017 12:59:11 +0200
Subject: [PATCH] lavf/gdv: Improve saturation of gdv palette.
---
libavcodec/gdv.c | 3 +++
libavformat/gdv.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/libavcodec/gdv.c b/libavcodec/gdv.c
index dc91869..009aace 100644
--- a/libavcodec/gdv.c
+++ b/libavcodec/gdv.c
@@ -433,6 +433,9 @@ static int gdv_decode_frame(AVCodecContext *avctx, void *data,
unsigned r = bytestream2_get_byte(gb);
unsigned g = bytestream2_get_byte(gb);
unsigned b = bytestream2_get_byte(gb);
+ r |= r >> 4;
+ g |= g >> 4;
+ b |= b >> 4;
gdv->pal[i] = 0xFFU << 24 | r << 18 | g << 10 | b << 2;
}
break;
diff --git a/libavformat/gdv.c b/libavformat/gdv.c
index 3220932..98b073d 100644
--- a/libavformat/gdv.c
+++ b/libavformat/gdv.c
@@ -140,6 +140,9 @@ static int gdv_read_header(AVFormatContext *ctx)
unsigned r = avio_r8(pb);
unsigned g = avio_r8(pb);
unsigned b = avio_r8(pb);
+ r |= r >> 4;
+ g |= g >> 4;
+ b |= b >> 4;
gdv->pal[i] = 0xFFU << 24 | r << 18 | g << 10 | b << 2;
}
}
--
1.7.10.4
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