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Diffstat (limited to 'src/libffmpeg/libavcodec/imgconvert.c')
-rw-r--r--src/libffmpeg/libavcodec/imgconvert.c281
1 files changed, 281 insertions, 0 deletions
diff --git a/src/libffmpeg/libavcodec/imgconvert.c b/src/libffmpeg/libavcodec/imgconvert.c
index 04300744f..48d6c014c 100644
--- a/src/libffmpeg/libavcodec/imgconvert.c
+++ b/src/libffmpeg/libavcodec/imgconvert.c
@@ -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,
@@ -245,6 +371,34 @@ static void shrink22(UINT8 *dst, int dst_wrap,
}
}
+/* 1x1 -> 2x2 */
+static void grow22(UINT8 *dst, int dst_wrap,
+ UINT8 *src, int src_wrap,
+ int width, int height)
+{
+ int w;
+ UINT8 *s1, *d;
+
+ for(;height > 0; height--) {
+ s1 = src;
+ d = dst;
+ for(w = width;w >= 4; w-=4) {
+ d[1] = d[0] = s1[0];
+ d[3] = d[2] = s1[1];
+ s1 += 2;
+ d += 4;
+ }
+ for(;w > 0; w--) {
+ d[0] = s1[0];
+ s1 ++;
+ d++;
+ }
+ if (height%2)
+ src += src_wrap;
+ dst += dst_wrap;
+ }
+}
+
static void img_copy(UINT8 *dst, int dst_wrap,
UINT8 *src, int src_wrap,
int width, int height)
@@ -273,6 +427,98 @@ static void img_copy(UINT8 *dst, int dst_wrap,
}
/* 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)
{
@@ -382,6 +628,17 @@ int img_convert(AVPicture *dst, int dst_pix_fmt,
} else if (dst_pix_fmt == PIX_FMT_YUV420P) {
switch(pix_fmt) {
+ case PIX_FMT_YUV410P:
+ img_copy(dst->data[0], dst->linesize[0],
+ src->data[0], src->linesize[0],
+ width, height);
+ grow22(dst->data[1], dst->linesize[1],
+ src->data[1], src->linesize[1],
+ width/2, height/2);
+ grow22(dst->data[2], dst->linesize[2],
+ src->data[2], src->linesize[2],
+ width/2, height/2);
+ break;
case PIX_FMT_YUV420P:
for(i=0;i<3;i++) {
img_copy(dst->data[i], dst->linesize[i],
@@ -421,10 +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;
}
@@ -439,6 +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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-25 22:49:23 +0000