Due to how pixel format conversion is done, they behave the same way
as gray files.
---
Typo, forgot an else.
Vittorio
libavcodec/dds.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/dds.c b/libavcodec/dds.c
index 0e9d9b9..caa629a 100644
--- a/libavcodec/dds.c
+++ b/libavcodec/dds.c
@@ -352,6 +352,8 @@ static int parse_pixel_format(AVCodecContext *avctx)
/* 8 bpp */
if (bpp == 8 && r == 0xff && g == 0 && b == 0 && a == 0)
avctx->pix_fmt = AV_PIX_FMT_GRAY8;
+ else if (bpp == 8 && r == 0 && g == 0 && b == 0 && a == 0xff)
+ avctx->pix_fmt = AV_PIX_FMT_GRAY8;
/* 16 bpp */
else if (bpp == 16 && r == 0xff && g == 0 && b == 0 && a == 0xff00)
avctx->pix_fmt = AV_PIX_FMT_YA8;
--
2.7.3
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