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video-format: clean up pack/unpack functions

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This commit is contained in:
Wim Taymans 2013-09-05 15:02:17 +02:00
parent 6508c738ff
commit d33e73e00f
1 changed files with 65 additions and 77 deletions
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142
gst-libs/gst/video/video-format.c
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@ -267,7 +267,7 @@ unpack_v210 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
const guint8 *s = GET_LINE (y);
guint16 *d = dest;
for (i = 0; i < width; i += 6) {
for (i = 0; i < width - 5; i += 6) {
guint32 a0, a1, a2, a3;
guint16 y0, y1, y2, y3, y4, y5;
guint16 u0, u2, u4;
@ -352,7 +352,7 @@ pack_v210 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
guint8 *d = GET_LINE (y);
const guint16 *s = src;
for (i = 0; i < width; i += 6) {
for (i = 0; i < width - 5; i += 6) {
guint32 a0, a1, a2, a3;
guint16 y0, y1, y2, y3, y4, y5;
guint16 u0, u1, u2;
@ -458,25 +458,14 @@ pack_Y41B (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
}
if (i == width - 3) {
if (i < width) {
destY[i] = s[i * 4 + 1];
destY[i + 1] = s[i * 4 + 5];
destY[i + 2] = s[i * 4 + 9];
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
} else if (i == width - 2) {
destY[i] = s[i * 4 + 1];
destY[i + 1] = s[i * 4 + 5];
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
} else if (i == width - 1) {
destY[i + 1] = s[i * 4 + 5];
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
if (i < width - 1)
destY[i + 1] = s[i * 4 + 5];
if (i < width - 2)
destY[i + 2] = s[i * 4 + 9];
}
}
@ -1283,26 +1272,16 @@ pack_410 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
destV[i >> 2] = s[i * 4 + 3];
}
}
if (i == width - 3) {
if (i < width) {
destY[i] = s[i * 4 + 1];
destY[i + 1] = s[i * 4 + 5];
destY[i + 2] = s[i * 4 + 9];
if (y % 4 == 0) {
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
}
} else if (i == width - 2) {
destY[i] = s[i * 4 + 1];
destY[i + 1] = s[i * 4 + 5];
if (y % 4 == 0) {
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
}
} else if (i == width - 1) {
destY[i] = s[i * 4 + 1];
destU[i >> 2] = s[i * 4 + 2];
destV[i >> 2] = s[i * 4 + 3];
if (i < width - 1)
destY[i + 1] = s[i * 4 + 5];
if (i < width - 2)
destY[i + 2] = s[i * 4 + 9];
}
}
@ -1315,43 +1294,60 @@ unpack_IYU1 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
int i;
const guint8 *s = GET_LINE (y);
guint8 *d = dest;
guint8 y0, y1, y2, y3;
guint8 u0;
guint8 v0;
for (i = 0; i < width - 3; i += 4) {
d[i * 4 + 0] = 0xff;
d[i * 4 + 4] = 0xff;
d[i * 4 + 8] = 0xff;
d[i * 4 + 12] = 0xff;
d[i * 4 + 1] = s[(i >> 2) * 6 + 1];
d[i * 4 + 5] = s[(i >> 2) * 6 + 2];
d[i * 4 + 9] = s[(i >> 2) * 6 + 4];
d[i * 4 + 13] = s[(i >> 2) * 6 + 5];
d[i * 4 + 2] = d[i * 4 + 6] = d[i * 4 + 10] = d[i * 4 + 14] =
s[(i >> 2) * 6 + 0];
d[i * 4 + 3] = d[i * 4 + 7] = d[i * 4 + 11] = d[i * 4 + 15] =
s[(i >> 2) * 6 + 3];
}
y0 = s[(i >> 2) * 6 + 1];
y1 = s[(i >> 2) * 6 + 2];
y2 = s[(i >> 2) * 6 + 4];
y3 = s[(i >> 2) * 6 + 5];
u0 = s[(i >> 2) * 6 + 0];
v0 = s[(i >> 2) * 6 + 3];
if (i == width - 3) {
d[i * 4 + 0] = 0xff;
d[i * 4 + 1] = y0;
d[i * 4 + 2] = u0;
d[i * 4 + 3] = v0;
d[i * 4 + 4] = 0xff;
d[i * 4 + 5] = y1;
d[i * 4 + 6] = u0;
d[i * 4 + 7] = v0;
d[i * 4 + 8] = 0xff;
d[i * 4 + 1] = s[(i >> 2) * 6 + 1];
d[i * 4 + 5] = s[(i >> 2) * 6 + 2];
d[i * 4 + 9] = s[(i >> 2) * 6 + 4];
d[i * 4 + 2] = d[i * 4 + 6] = d[i * 4 + 10] = s[(i >> 2) * 6 + 0];
d[i * 4 + 3] = d[i * 4 + 7] = d[i * 4 + 11] = s[(i >> 2) * 6 + 3];
} else if (i == width - 2) {
d[i * 4 + 0] = 0xff;
d[i * 4 + 4] = 0xff;
d[i * 4 + 1] = s[(i >> 2) * 6 + 1];
d[i * 4 + 5] = s[(i >> 2) * 6 + 2];
d[i * 4 + 2] = d[i * 4 + 6] = s[(i >> 2) * 6 + 0];
d[i * 4 + 3] = d[i * 4 + 7] = s[(i >> 2) * 6 + 3];
} else if (i == width - 1) {
d[i * 4 + 9] = y2;
d[i * 4 + 10] = u0;
d[i * 4 + 11] = v0;
d[i * 4 + 12] = 0xff;
d[i * 4 + 13] = y3;
d[i * 4 + 14] = u0;
d[i * 4 + 15] = v0;
}
if (i < width) {
u0 = s[(i >> 2) * 6 + 0];
v0 = s[(i >> 2) * 6 + 3];
d[i * 4 + 0] = 0xff;
d[i * 4 + 1] = s[(i >> 2) * 6 + 1];
d[i * 4 + 2] = s[(i >> 2) * 6 + 0];
d[i * 4 + 3] = s[(i >> 2) * 6 + 3];
d[i * 4 + 2] = u0;
d[i * 4 + 3] = v0;
if (i < width - 1) {
d[i * 4 + 4] = 0xff;
d[i * 4 + 5] = s[(i >> 2) * 6 + 2];
d[i * 4 + 6] = u0;
d[i * 4 + 7] = v0;
}
if (i < width - 2) {
d[i * 4 + 8] = 0xff;
d[i * 4 + 9] = s[(i >> 2) * 6 + 4];
d[i * 4 + 10] = u0;
d[i * 4 + 11] = v0;
}
}
}
@ -1366,29 +1362,21 @@ pack_IYU1 (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
const guint8 *s = src;
for (i = 0; i < width - 3; i += 4) {
d[(i >> 2) * 6 + 0] = s[i * 4 + 2];
d[(i >> 2) * 6 + 1] = s[i * 4 + 1];
d[(i >> 2) * 6 + 2] = s[i * 4 + 5];
d[(i >> 2) * 6 + 3] = s[i * 4 + 3];
d[(i >> 2) * 6 + 4] = s[i * 4 + 9];
d[(i >> 2) * 6 + 5] = s[i * 4 + 13];
d[(i >> 2) * 6 + 0] = s[i * 4 + 2];
d[(i >> 2) * 6 + 3] = s[i * 4 + 3];
}
if (i == width - 3) {
d[(i >> 2) * 6 + 1] = s[i * 4 + 1];
d[(i >> 2) * 6 + 2] = s[i * 4 + 5];
d[(i >> 2) * 6 + 4] = s[i * 4 + 9];
d[(i >> 2) * 6 + 0] = s[i * 4 + 2];
d[(i >> 2) * 6 + 3] = s[i * 4 + 3];
} else if (i == width - 2) {
d[(i >> 2) * 6 + 1] = s[i * 4 + 1];
d[(i >> 2) * 6 + 2] = s[i * 4 + 5];
d[(i >> 2) * 6 + 0] = s[i * 4 + 2];
d[(i >> 2) * 6 + 3] = s[i * 4 + 3];
} else if (i == width - 1) {
if (i < width) {
d[(i >> 2) * 6 + 1] = s[i * 4 + 1];
d[(i >> 2) * 6 + 0] = s[i * 4 + 2];
d[(i >> 2) * 6 + 3] = s[i * 4 + 3];
if (i < width - 1)
d[(i >> 2) * 6 + 2] = s[i * 4 + 5];
if (i < width - 2)
d[(i >> 2) * 6 + 4] = s[i * 4 + 9];
}
}