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authorRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>2013-08-02 22:42:52 (GMT)
committerGregor Jasny <gjasny@googlemail.com>2014-01-13 19:55:16 (GMT)
commit548921b7efe3901c2f4ff154a444e6e0a7f53843 (patch)
treefe3d402bfa3f25dc73ef542cea8a3be646d3b316
parentd2cf7eb136586b638941a238ae68cfc7ef1ecb19 (diff)
libv4lconvert: Support for RGB32 and BGR32 format
This patch adds support for V4L2_PIX_FMT_RGB32 and V4L2_PIX_FMT_BGR32 formats. Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Gregor Jasny <gjasny@googlemail.com> (cherry picked from commit 4ebca00f8ad72c5c12020963d6787b5a321a7038)
-rw-r--r--lib/libv4lconvert/libv4lconvert-priv.h5
-rw-r--r--lib/libv4lconvert/libv4lconvert.c58
-rw-r--r--lib/libv4lconvert/rgbyuv.c45
3 files changed, 90 insertions, 18 deletions
diff --git a/lib/libv4lconvert/libv4lconvert-priv.h b/lib/libv4lconvert/libv4lconvert-priv.h
index 6422fdd..ac1391e 100644
--- a/lib/libv4lconvert/libv4lconvert-priv.h
+++ b/lib/libv4lconvert/libv4lconvert-priv.h
@@ -108,7 +108,7 @@ unsigned char *v4lconvert_alloc_buffer(int needed,
int v4lconvert_oom_error(struct v4lconvert_data *data);
void v4lconvert_rgb24_to_yuv420(const unsigned char *src, unsigned char *dest,
- const struct v4l2_format *src_fmt, int bgr, int yvu);
+ const struct v4l2_format *src_fmt, int bgr, int yvu, int bpp);
void v4lconvert_yuv420_to_rgb24(const unsigned char *src, unsigned char *dst,
int width, int height, int yvu);
@@ -158,6 +158,9 @@ void v4lconvert_y16_to_rgb24(const unsigned char *src, unsigned char *dest,
void v4lconvert_y16_to_yuv420(const unsigned char *src, unsigned char *dest,
const struct v4l2_format *src_fmt);
+void v4lconvert_rgb32_to_rgb24(const unsigned char *src, unsigned char *dest,
+ int width, int height, int bgr);
+
int v4lconvert_y10b_to_rgb24(struct v4lconvert_data *data,
const unsigned char *src, unsigned char *dest, int width, int height);
diff --git a/lib/libv4lconvert/libv4lconvert.c b/lib/libv4lconvert/libv4lconvert.c
index bc5e34f..2aec99a 100644
--- a/lib/libv4lconvert/libv4lconvert.c
+++ b/lib/libv4lconvert/libv4lconvert.c
@@ -84,6 +84,8 @@ static const struct v4lconvert_pixfmt supported_src_pixfmts[] = {
SUPPORTED_DST_PIXFMTS,
/* packed rgb formats */
{ V4L2_PIX_FMT_RGB565, 16, 4, 6, 0 },
+ { V4L2_PIX_FMT_BGR32, 32, 4, 6, 0 },
+ { V4L2_PIX_FMT_RGB32, 32, 4, 6, 0 },
/* yuv 4:2:2 formats */
{ V4L2_PIX_FMT_YUYV, 16, 5, 4, 0 },
{ V4L2_PIX_FMT_YVYU, 16, 5, 4, 0 },
@@ -981,10 +983,10 @@ static int v4lconvert_convert_pixfmt(struct v4lconvert_data *data,
v4lconvert_swap_rgb(d, dest, width, height);
break;
case V4L2_PIX_FMT_YUV420:
- v4lconvert_rgb24_to_yuv420(d, dest, fmt, 0, 0);
+ v4lconvert_rgb24_to_yuv420(d, dest, fmt, 0, 0, 3);
break;
case V4L2_PIX_FMT_YVU420:
- v4lconvert_rgb24_to_yuv420(d, dest, fmt, 0, 1);
+ v4lconvert_rgb24_to_yuv420(d, dest, fmt, 0, 1, 3);
break;
}
break;
@@ -1079,10 +1081,10 @@ static int v4lconvert_convert_pixfmt(struct v4lconvert_data *data,
v4lconvert_swap_rgb(src, dest, width, height);
break;
case V4L2_PIX_FMT_YUV420:
- v4lconvert_rgb24_to_yuv420(src, dest, fmt, 0, 0);
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 0, 0, 3);
break;
case V4L2_PIX_FMT_YVU420:
- v4lconvert_rgb24_to_yuv420(src, dest, fmt, 0, 1);
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 0, 1, 3);
break;
}
if (src_size < (width * height * 3)) {
@@ -1101,10 +1103,10 @@ static int v4lconvert_convert_pixfmt(struct v4lconvert_data *data,
memcpy(dest, src, width * height * 3);
break;
case V4L2_PIX_FMT_YUV420:
- v4lconvert_rgb24_to_yuv420(src, dest, fmt, 1, 0);
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 1, 0, 3);
break;
case V4L2_PIX_FMT_YVU420:
- v4lconvert_rgb24_to_yuv420(src, dest, fmt, 1, 1);
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 1, 1, 3);
break;
}
if (src_size < (width * height * 3)) {
@@ -1114,6 +1116,50 @@ static int v4lconvert_convert_pixfmt(struct v4lconvert_data *data,
}
break;
+ case V4L2_PIX_FMT_RGB32:
+ switch (dest_pix_fmt) {
+ case V4L2_PIX_FMT_RGB24:
+ v4lconvert_rgb32_to_rgb24(src, dest, width, height, 0);
+ break;
+ case V4L2_PIX_FMT_BGR24:
+ v4lconvert_rgb32_to_rgb24(src, dest, width, height, 1);
+ break;
+ case V4L2_PIX_FMT_YUV420:
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 0, 0, 4);
+ break;
+ case V4L2_PIX_FMT_YVU420:
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 0, 1, 4);
+ break;
+ }
+ if (src_size < (width * height * 4)) {
+ V4LCONVERT_ERR("short rgb32 data frame\n");
+ errno = EPIPE;
+ result = -1;
+ }
+ break;
+
+ case V4L2_PIX_FMT_BGR32:
+ switch (dest_pix_fmt) {
+ case V4L2_PIX_FMT_RGB24:
+ v4lconvert_rgb32_to_rgb24(src, dest, width, height, 1);
+ break;
+ case V4L2_PIX_FMT_BGR24:
+ v4lconvert_rgb32_to_rgb24(src, dest, width, height, 0);
+ break;
+ case V4L2_PIX_FMT_YUV420:
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 1, 0, 4);
+ break;
+ case V4L2_PIX_FMT_YVU420:
+ v4lconvert_rgb24_to_yuv420(src, dest, fmt, 1, 1, 4);
+ break;
+ }
+ if (src_size < (width * height * 4)) {
+ V4LCONVERT_ERR("short bgr32 data frame\n");
+ errno = EPIPE;
+ result = -1;
+ }
+ break;
+
case V4L2_PIX_FMT_YUV420:
switch (dest_pix_fmt) {
case V4L2_PIX_FMT_RGB24:
diff --git a/lib/libv4lconvert/rgbyuv.c b/lib/libv4lconvert/rgbyuv.c
index bef034f..d2f11bf 100644
--- a/lib/libv4lconvert/rgbyuv.c
+++ b/lib/libv4lconvert/rgbyuv.c
@@ -35,7 +35,7 @@
} while (0)
void v4lconvert_rgb24_to_yuv420(const unsigned char *src, unsigned char *dest,
- const struct v4l2_format *src_fmt, int bgr, int yvu)
+ const struct v4l2_format *src_fmt, int bgr, int yvu, int bpp)
{
int x, y;
unsigned char *udest, *vdest;
@@ -47,9 +47,10 @@ void v4lconvert_rgb24_to_yuv420(const unsigned char *src, unsigned char *dest,
RGB2Y(src[2], src[1], src[0], *dest++);
else
RGB2Y(src[0], src[1], src[2], *dest++);
- src += 3;
+ src += bpp;
}
- src += src_fmt->fmt.pix.bytesperline - 3 * src_fmt->fmt.pix.width;
+
+ src += src_fmt->fmt.pix.bytesperline - bpp * src_fmt->fmt.pix.width;
}
src -= src_fmt->fmt.pix.height * src_fmt->fmt.pix.bytesperline;
@@ -66,19 +67,19 @@ void v4lconvert_rgb24_to_yuv420(const unsigned char *src, unsigned char *dest,
for (x = 0; x < src_fmt->fmt.pix.width / 2; x++) {
int avg_src[3];
- avg_src[0] = (src[0] + src[3] + src[src_fmt->fmt.pix.bytesperline] +
- src[src_fmt->fmt.pix.bytesperline + 3]) / 4;
- avg_src[1] = (src[1] + src[4] + src[src_fmt->fmt.pix.bytesperline + 1] +
- src[src_fmt->fmt.pix.bytesperline + 4]) / 4;
- avg_src[2] = (src[2] + src[5] + src[src_fmt->fmt.pix.bytesperline + 2] +
- src[src_fmt->fmt.pix.bytesperline + 5]) / 4;
+ avg_src[0] = (src[0] + src[bpp] + src[src_fmt->fmt.pix.bytesperline] +
+ src[src_fmt->fmt.pix.bytesperline + bpp]) / 4;
+ avg_src[1] = (src[1] + src[bpp + 1] + src[src_fmt->fmt.pix.bytesperline + 1] +
+ src[src_fmt->fmt.pix.bytesperline + bpp + 1]) / 4;
+ avg_src[2] = (src[2] + src[bpp + 2] + src[src_fmt->fmt.pix.bytesperline + 2] +
+ src[src_fmt->fmt.pix.bytesperline + bpp + 2]) / 4;
if (bgr)
RGB2UV(avg_src[2], avg_src[1], avg_src[0], *udest++, *vdest++);
else
RGB2UV(avg_src[0], avg_src[1], avg_src[2], *udest++, *vdest++);
- src += 6;
+ src += 2 * bpp;
}
- src += 2 * src_fmt->fmt.pix.bytesperline - 3 * src_fmt->fmt.pix.width;
+ src += 2 * src_fmt->fmt.pix.bytesperline - bpp * src_fmt->fmt.pix.width;
}
}
@@ -725,3 +726,25 @@ int v4lconvert_y10b_to_yuv420(struct v4lconvert_data *data,
return 0;
}
+
+void v4lconvert_rgb32_to_rgb24(const unsigned char *src, unsigned char *dest,
+ int width, int height,int bgr)
+{
+ int j;
+ while (--height >= 0) {
+ for (j = 0; j < width; j++) {
+ if (bgr){
+ *dest++ = src[2];
+ *dest++ = src[1];
+ *dest++ = src[0];
+ src+=4;
+ }
+ else{
+ *dest++ = *src++;
+ *dest++ = *src++;
+ *dest++ = *src++;
+ src+=1;
+ }
+ }
+ }
+}

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