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[MOVED FROM BAD 51/68] colorspace: Add support for IYU1

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Sebastian Dröge 2010-11-03 15:37:48 +01:00 committed by Wim Taymans
parent 03d440668e
commit 660b1af2dc
1 changed files with 89 additions and 0 deletions
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89
gst/colorspace/colorspace.c
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@ -966,6 +966,94 @@ putline_YUV9 (ColorspaceConvert * convert, guint8 * dest, const guint8 * src,
destV[i >> 2] = src[i * 4 + 3];
}
}
static void
getline_IYU1 (ColorspaceConvert * convert, guint8 * dest, const guint8 * src,
int j)
{
int i;
const guint8 *srcline = FRAME_GET_LINE (src, 0, j);
for (i = 0; i < convert->width - 3; i += 4) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 8] = 0xff;
dest[i * 4 + 12] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 5] = srcline[(i >> 2) * 6 + 2];
dest[i * 4 + 9] = srcline[(i >> 2) * 6 + 4];
dest[i * 4 + 13] = srcline[(i >> 2) * 6 + 5];
dest[i * 4 + 2] = dest[i * 4 + 6] = dest[i * 4 + 10] = dest[i * 4 + 14] =
srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = dest[i * 4 + 7] = dest[i * 4 + 11] = dest[i * 4 + 15] =
srcline[(i >> 2) * 6 + 3];
}
if (i == convert->width - 3) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 8] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 5] = srcline[(i >> 2) * 6 + 2];
dest[i * 4 + 9] = srcline[(i >> 2) * 6 + 4];
dest[i * 4 + 2] = dest[i * 4 + 6] = dest[i * 4 + 10] =
srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = dest[i * 4 + 7] = dest[i * 4 + 11] =
srcline[(i >> 2) * 6 + 3];
} else if (i == convert->width - 2) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 4] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 5] = srcline[(i >> 2) * 6 + 2];
dest[i * 4 + 2] = dest[i * 4 + 6] = srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = dest[i * 4 + 7] = srcline[(i >> 2) * 6 + 3];
} else if (i == convert->width - 1) {
dest[i * 4 + 0] = 0xff;
dest[i * 4 + 1] = srcline[(i >> 2) * 6 + 1];
dest[i * 4 + 2] = srcline[(i >> 2) * 6 + 0];
dest[i * 4 + 3] = srcline[(i >> 2) * 6 + 3];
}
}
static void
putline_IYU1 (ColorspaceConvert * convert, guint8 * dest, const guint8 * src,
int j)
{
int i;
guint8 *destline = FRAME_GET_LINE (dest, 0, j);
for (i = 0; i < convert->width - 3; i += 4) {
destline[(i >> 2) * 6 + 1] = src[i * 4 + 1];
destline[(i >> 2) * 6 + 2] = src[i * 4 + 5];
destline[(i >> 2) * 6 + 4] = src[i * 4 + 9];
destline[(i >> 2) * 6 + 5] = src[i * 4 + 13];
destline[(i >> 2) * 6 + 0] =
(src[i * 4 + 2] + src[i * 4 + 6] + src[i * 4 + 10] + src[i * 4 +
14]) >> 2;
destline[(i >> 2) * 6 + 3] =
(src[i * 4 + 3] + src[i * 4 + 7] + src[i * 4 + 11] + src[i * 4 +
15]) >> 2;
}
if (i == convert->width - 3) {
destline[(i >> 2) * 6 + 1] = src[i * 4 + 1];
destline[(i >> 2) * 6 + 2] = src[i * 4 + 5];
destline[(i >> 2) * 6 + 4] = src[i * 4 + 9];
destline[(i >> 2) * 6 + 0] =
(src[i * 4 + 2] + src[i * 4 + 6] + src[i * 4 + 10]) / 3;
destline[(i >> 2) * 6 + 3] =
(src[i * 4 + 3] + src[i * 4 + 7] + src[i * 4 + 11]) / 3;
} else if (i == convert->width - 2) {
destline[(i >> 2) * 6 + 1] = src[i * 4 + 1];
destline[(i >> 2) * 6 + 2] = src[i * 4 + 5];
destline[(i >> 2) * 6 + 0] = (src[i * 4 + 2] + src[i * 4 + 6]) >> 1;
destline[(i >> 2) * 6 + 3] = (src[i * 4 + 3] + src[i * 4 + 7]) >> 1;
} else if (i == convert->width - 1) {
destline[(i >> 2) * 6 + 1] = src[i * 4 + 1];
destline[(i >> 2) * 6 + 0] = src[i * 4 + 2];
destline[(i >> 2) * 6 + 3] = src[i * 4 + 3];
}
}
#endif
typedef struct
@ -1016,6 +1104,7 @@ static const ColorspaceLine lines[] = {
, {GST_VIDEO_FORMAT_RGB8_PALETTED, getline_RGB8P, putline_RGB8P},
{GST_VIDEO_FORMAT_YUV9, getline_YUV9, putline_YUV9},
{GST_VIDEO_FORMAT_YVU9, getline_YUV9, putline_YUV9}, /* alias */
{GST_VIDEO_FORMAT_IYU1, getline_IYU1, putline_IYU1}
#endif
};