Hi,
On 07/19/2014 09:18 AM, Hans Verkuil wrote:
The RGB32 formats start with an alpha byte in memory. So before calling the
v4lconvert_rgb32_to_rgb24 or v4lconvert_rgb24_to_yuv420 function skip that
initial
alpha byte so the src pointer is aligned with the first color component, since
that is what those functions expect.
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
diff --git a/lib/libv4lconvert/libv4lconvert.c
b/lib/libv4lconvert/libv4lconvert.c
index cea65aa..e4aa54a 100644
--- a/lib/libv4lconvert/libv4lconvert.c
+++ b/lib/libv4lconvert/libv4lconvert.c
@@ -1132,6 +1132,7 @@ static int v4lconvert_convert_pixfmt(struct
v4lconvert_data *data,
errno = EPIPE;
result = -1;
}
+ src++;
Hmm what about bgr versus rgb, since those are mirrored, maybe the location of
the alpha byte is mirrored to, and we should only do the src++ for one of them ?
switch (dest_pix_fmt) {
case V4L2_PIX_FMT_RGB24:
v4lconvert_rgb32_to_rgb24(src, dest, width, height, 0);
Regards,
Hans
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