mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2025-03-08 05:28:40 +00:00
Add conversions to and from RGBA32 and BGRA32.
Originally committed as revision 824 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Philip Gladstone
parent
64e105e051
commit
b71472eb62
@ -59,6 +59,8 @@ enum PixelFormat {
|
||||
PIX_FMT_BGR24,
|
||||
PIX_FMT_YUV422P,
|
||||
PIX_FMT_YUV444P,
|
||||
PIX_FMT_RGBA32,
|
||||
PIX_FMT_BGRA32,
|
||||
PIX_FMT_YUV410P
|
||||
};
|
||||
|
||||
|
||||
@ -117,6 +117,69 @@ static void rgb24_to_yuv420p(UINT8 *lum, UINT8 *cb, UINT8 *cr,
|
||||
}
|
||||
}
|
||||
|
||||
static void rgba32_to_yuv420p(UINT8 *lum, UINT8 *cb, UINT8 *cr,
|
||||
UINT8 *src, int width, int height)
|
||||
{
|
||||
int wrap, wrap4, x, y;
|
||||
int r, g, b, r1, g1, b1;
|
||||
UINT8 *p;
|
||||
|
||||
wrap = width;
|
||||
wrap4 = width * 4;
|
||||
p = src;
|
||||
for(y=0;y<height;y+=2) {
|
||||
for(x=0;x<width;x+=2) {
|
||||
r = p[0];
|
||||
g = p[1];
|
||||
b = p[2];
|
||||
r1 = r;
|
||||
g1 = g;
|
||||
b1 = b;
|
||||
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
r = p[4];
|
||||
g = p[5];
|
||||
b = p[6];
|
||||
r1 += r;
|
||||
g1 += g;
|
||||
b1 += b;
|
||||
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
p += wrap4;
|
||||
lum += wrap;
|
||||
|
||||
r = p[0];
|
||||
g = p[1];
|
||||
b = p[2];
|
||||
r1 += r;
|
||||
g1 += g;
|
||||
b1 += b;
|
||||
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
r = p[4];
|
||||
g = p[5];
|
||||
b = p[6];
|
||||
r1 += r;
|
||||
g1 += g;
|
||||
b1 += b;
|
||||
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
|
||||
cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 +
|
||||
FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128;
|
||||
cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 -
|
||||
FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128;
|
||||
|
||||
cb++;
|
||||
cr++;
|
||||
p += -wrap4 + 2 * 4;
|
||||
lum += -wrap + 2;
|
||||
}
|
||||
p += wrap4;
|
||||
lum += wrap;
|
||||
}
|
||||
}
|
||||
|
||||
static void bgr24_to_yuv420p(UINT8 *lum, UINT8 *cb, UINT8 *cr,
|
||||
UINT8 *src, int width, int height)
|
||||
{
|
||||
@ -180,6 +243,69 @@ static void bgr24_to_yuv420p(UINT8 *lum, UINT8 *cb, UINT8 *cr,
|
||||
}
|
||||
}
|
||||
|
||||
static void bgra32_to_yuv420p(UINT8 *lum, UINT8 *cb, UINT8 *cr,
|
||||
UINT8 *src, int width, int height)
|
||||
{
|
||||
int wrap, wrap4, x, y;
|
||||
int r, g, b, r1, g1, b1;
|
||||
UINT8 *p;
|
||||
|
||||
wrap = width;
|
||||
wrap4 = width * 4;
|
||||
p = src;
|
||||
for(y=0;y<height;y+=2) {
|
||||
for(x=0;x<width;x+=2) {
|
||||
b = p[0];
|
||||
g = p[1];
|
||||
r = p[2];
|
||||
r1 = r;
|
||||
g1 = g;
|
||||
b1 = b;
|
||||
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
b = p[4];
|
||||
g = p[5];
|
||||
r = p[6];
|
||||
r1 += r;
|
||||
g1 += g;
|
||||
b1 += b;
|
||||
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
p += wrap4;
|
||||
lum += wrap;
|
||||
|
||||
b = p[0];
|
||||
g = p[1];
|
||||
r = p[2];
|
||||
r1 += r;
|
||||
g1 += g;
|
||||
b1 += b;
|
||||
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
b = p[4];
|
||||
g = p[5];
|
||||
r = p[6];
|
||||
r1 += r;
|
||||
g1 += g;
|
||||
b1 += b;
|
||||
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS;
|
||||
|
||||
cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 +
|
||||
FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128;
|
||||
cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 -
|
||||
FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128;
|
||||
|
||||
cb++;
|
||||
cr++;
|
||||
p += -wrap4 + 2 * 4;
|
||||
lum += -wrap + 2;
|
||||
}
|
||||
p += wrap4;
|
||||
lum += wrap;
|
||||
}
|
||||
}
|
||||
|
||||
/* XXX: use generic filter ? */
|
||||
/* 1x2 -> 1x1 */
|
||||
static void shrink2(UINT8 *dst, int dst_wrap,
|
||||
@ -300,6 +426,98 @@ static void img_copy(UINT8 *dst, int dst_wrap,
|
||||
b = cm[(y + b_add) >> SCALE_BITS];\
|
||||
}
|
||||
|
||||
/* XXX: no chroma interpolating is done */
|
||||
static void yuv420p_to_bgra32(AVPicture *dst, AVPicture *src,
|
||||
int width, int height)
|
||||
{
|
||||
UINT8 *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr, *d, *d1, *d2;
|
||||
int w, y, cb, cr, r_add, g_add, b_add, width2;
|
||||
UINT8 *cm = cropTbl + MAX_NEG_CROP;
|
||||
|
||||
d = dst->data[0];
|
||||
y1_ptr = src->data[0];
|
||||
cb_ptr = src->data[1];
|
||||
cr_ptr = src->data[2];
|
||||
width2 = width >> 1;
|
||||
for(;height > 0; height -= 2) {
|
||||
d1 = d;
|
||||
d2 = d + dst->linesize[0];
|
||||
y2_ptr = y1_ptr + src->linesize[0];
|
||||
for(w = width2; w > 0; w --) {
|
||||
cb = cb_ptr[0] - 128;
|
||||
cr = cr_ptr[0] - 128;
|
||||
r_add = C_RV * cr + (1 << (SCALE_BITS - 1));
|
||||
g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1));
|
||||
b_add = C_BU * cb + (1 << (SCALE_BITS - 1));
|
||||
|
||||
/* output 4 pixels */
|
||||
RGBOUT(d1[2], d1[1], d1[0], y1_ptr[0]);
|
||||
RGBOUT(d1[6], d1[5], d1[4], y1_ptr[1]);
|
||||
RGBOUT(d2[2], d2[1], d2[0], y2_ptr[0]);
|
||||
RGBOUT(d2[6], d2[5], d2[4], y2_ptr[1]);
|
||||
|
||||
d1[3] = d1[7] = d2[3] = d2[7] = 255;
|
||||
|
||||
d1 += 8;
|
||||
d2 += 8;
|
||||
y1_ptr += 2;
|
||||
y2_ptr += 2;
|
||||
cb_ptr++;
|
||||
cr_ptr++;
|
||||
}
|
||||
d += 2 * dst->linesize[0];
|
||||
y1_ptr += 2 * src->linesize[0] - width;
|
||||
cb_ptr += src->linesize[1] - width2;
|
||||
cr_ptr += src->linesize[2] - width2;
|
||||
}
|
||||
}
|
||||
|
||||
/* XXX: no chroma interpolating is done */
|
||||
static void yuv420p_to_rgba32(AVPicture *dst, AVPicture *src,
|
||||
int width, int height)
|
||||
{
|
||||
UINT8 *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr, *d, *d1, *d2;
|
||||
int w, y, cb, cr, r_add, g_add, b_add, width2;
|
||||
UINT8 *cm = cropTbl + MAX_NEG_CROP;
|
||||
|
||||
d = dst->data[0];
|
||||
y1_ptr = src->data[0];
|
||||
cb_ptr = src->data[1];
|
||||
cr_ptr = src->data[2];
|
||||
width2 = width >> 1;
|
||||
for(;height > 0; height -= 2) {
|
||||
d1 = d;
|
||||
d2 = d + dst->linesize[0];
|
||||
y2_ptr = y1_ptr + src->linesize[0];
|
||||
for(w = width2; w > 0; w --) {
|
||||
cb = cb_ptr[0] - 128;
|
||||
cr = cr_ptr[0] - 128;
|
||||
r_add = C_RV * cr + (1 << (SCALE_BITS - 1));
|
||||
g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1));
|
||||
b_add = C_BU * cb + (1 << (SCALE_BITS - 1));
|
||||
|
||||
/* output 4 pixels */
|
||||
RGBOUT(d1[0], d1[1], d1[2], y1_ptr[0]);
|
||||
RGBOUT(d1[4], d1[5], d1[6], y1_ptr[1]);
|
||||
RGBOUT(d2[0], d2[1], d2[2], y2_ptr[0]);
|
||||
RGBOUT(d2[4], d2[5], d2[6], y2_ptr[1]);
|
||||
|
||||
d1[3] = d1[7] = d2[3] = d2[7] = 255;
|
||||
|
||||
d1 += 8;
|
||||
d2 += 8;
|
||||
y1_ptr += 2;
|
||||
y2_ptr += 2;
|
||||
cb_ptr++;
|
||||
cr_ptr++;
|
||||
}
|
||||
d += 2 * dst->linesize[0];
|
||||
y1_ptr += 2 * src->linesize[0] - width;
|
||||
cb_ptr += src->linesize[1] - width2;
|
||||
cr_ptr += src->linesize[2] - width2;
|
||||
}
|
||||
}
|
||||
|
||||
/* XXX: no chroma interpolating is done */
|
||||
static void yuv420p_to_rgb24(AVPicture *dst, AVPicture *src,
|
||||
int width, int height)
|
||||
@ -460,10 +678,18 @@ int img_convert(AVPicture *dst, int dst_pix_fmt,
|
||||
rgb24_to_yuv420p(dst->data[0], dst->data[1], dst->data[2],
|
||||
src->data[0], width, height);
|
||||
break;
|
||||
case PIX_FMT_RGBA32:
|
||||
rgba32_to_yuv420p(dst->data[0], dst->data[1], dst->data[2],
|
||||
src->data[0], width, height);
|
||||
break;
|
||||
case PIX_FMT_BGR24:
|
||||
bgr24_to_yuv420p(dst->data[0], dst->data[1], dst->data[2],
|
||||
src->data[0], width, height);
|
||||
break;
|
||||
case PIX_FMT_BGRA32:
|
||||
bgra32_to_yuv420p(dst->data[0], dst->data[1], dst->data[2],
|
||||
src->data[0], width, height);
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
@ -478,6 +704,22 @@ int img_convert(AVPicture *dst, int dst_pix_fmt,
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
} else if (dst_pix_fmt == PIX_FMT_RGBA32) {
|
||||
switch(pix_fmt) {
|
||||
case PIX_FMT_YUV420P:
|
||||
yuv420p_to_rgba32(dst, src, width, height);
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
} else if (dst_pix_fmt == PIX_FMT_BGRA32) {
|
||||
switch(pix_fmt) {
|
||||
case PIX_FMT_YUV420P:
|
||||
yuv420p_to_bgra32(dst, src, width, height);
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -199,6 +199,8 @@ const char *pix_fmt_str[] = {
|
||||
"bgr24",
|
||||
"yuv422p",
|
||||
"yuv444p",
|
||||
"rgba32",
|
||||
"bgra32",
|
||||
"yuv410p"
|
||||
};
|
||||
|
||||
@ -299,7 +301,7 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
|
||||
}
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
av_abort();
|
||||
}
|
||||
if (bitrate != 0) {
|
||||
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
||||
@ -346,6 +348,13 @@ void avpicture_fill(AVPicture *picture, UINT8 *ptr,
|
||||
picture->data[2] = NULL;
|
||||
picture->linesize[0] = width * 3;
|
||||
break;
|
||||
case PIX_FMT_RGBA32:
|
||||
case PIX_FMT_BGRA32:
|
||||
picture->data[0] = ptr;
|
||||
picture->data[1] = NULL;
|
||||
picture->data[2] = NULL;
|
||||
picture->linesize[0] = width * 4;
|
||||
break;
|
||||
case PIX_FMT_YUV422:
|
||||
picture->data[0] = ptr;
|
||||
picture->data[1] = NULL;
|
||||
@ -379,6 +388,10 @@ int avpicture_get_size(int pix_fmt, int width, int height)
|
||||
case PIX_FMT_BGR24:
|
||||
size = (size * 3);
|
||||
break;
|
||||
case PIX_FMT_RGBA32:
|
||||
case PIX_FMT_BGRA32:
|
||||
size = (size * 4);
|
||||
break;
|
||||
case PIX_FMT_YUV422:
|
||||
size = (size * 2);
|
||||
break;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user