* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+
+/**
+ * @file imgconvert.c
+ * Misc image convertion routines.
+ */
+
+
#include "avcodec.h"
#include "dsputil.h"
typedef struct PixFmtInfo {
const char *name;
- UINT8 nb_components; /* number of components in AVPicture array */
- UINT8 is_yuv : 1; /* true if YUV instead of RGB color space */
- UINT8 is_packed : 1; /* true if multiple components in same word */
- UINT8 is_paletted : 1; /* true if paletted */
- UINT8 is_alpha : 1; /* true if alpha can be specified */
- UINT8 is_gray : 1; /* true if gray or monochrome format */
- UINT8 x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
- UINT8 y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
+ uint8_t nb_components; /* number of components in AVPicture array */
+ uint8_t is_yuv : 1; /* true if YUV instead of RGB color space */
+ uint8_t is_packed : 1; /* true if multiple components in same word */
+ uint8_t is_paletted : 1; /* true if paletted */
+ uint8_t is_alpha : 1; /* true if alpha can be specified */
+ uint8_t is_gray : 1; /* true if gray or monochrome format */
+ uint8_t x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
+ uint8_t y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
} PixFmtInfo;
/* this table gives more information about formats */
.name = "monob",
.nb_components = 1, .is_packed = 1, .is_gray = 1,
},
+
+ /* paletted formats */
+ [PIX_FMT_PAL8] = {
+ .name = "pal8",
+ .nb_components = 1, .is_packed = 1, .is_paletted = 1,
+ },
};
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift)
}
/* Picture field are filled with 'ptr' addresses. Also return size */
-int avpicture_fill(AVPicture *picture, UINT8 *ptr,
+int avpicture_fill(AVPicture *picture, uint8_t *ptr,
int pix_fmt, int width, int height)
{
int size, w2, h2, size2;
picture->data[2] = NULL;
picture->linesize[0] = (width + 7) >> 3;
return picture->linesize[0] * height;
+ case PIX_FMT_PAL8:
+ size2 = (size + 3) & ~3;
+ picture->data[0] = ptr;
+ picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
+ picture->data[2] = NULL;
+ picture->linesize[0] = width;
+ picture->linesize[1] = 4;
+ return size2 + 256 * 4;
default:
picture->data[0] = NULL;
picture->data[1] = NULL;
picture->data[2] = NULL;
+ picture->data[3] = NULL;
return -1;
}
}
static void yuv422_to_yuv420p(AVPicture *dst, AVPicture *src,
int width, int height)
{
- UINT8 *lum, *cb, *cr;
+ uint8_t *lum, *cb, *cr;
int x, y;
- const UINT8 *p;
+ const uint8_t *p;
lum = dst->data[0];
cb = dst->data[1];
/* XXX: use generic filter ? */
/* 1x2 -> 1x1 */
-static void shrink2(UINT8 *dst, int dst_wrap,
- UINT8 *src, int src_wrap,
+static void shrink2(uint8_t *dst, int dst_wrap,
+ uint8_t *src, int src_wrap,
int width, int height)
{
int w;
- UINT8 *s1, *s2, *d;
+ uint8_t *s1, *s2, *d;
for(;height > 0; height--) {
s1 = src;
}
/* 2x2 -> 1x1 */
-static void shrink22(UINT8 *dst, int dst_wrap,
- UINT8 *src, int src_wrap,
+static void shrink22(uint8_t *dst, int dst_wrap,
+ uint8_t *src, int src_wrap,
int width, int height)
{
int w;
- UINT8 *s1, *s2, *d;
+ uint8_t *s1, *s2, *d;
for(;height > 0; height--) {
s1 = src;
}
/* 1x1 -> 2x2 */
-static void grow22(UINT8 *dst, int dst_wrap,
- UINT8 *src, int src_wrap,
+static void grow22(uint8_t *dst, int dst_wrap,
+ uint8_t *src, int src_wrap,
int width, int height)
{
int w;
- UINT8 *s1, *d;
+ uint8_t *s1, *d;
for(;height > 0; height--) {
s1 = src;
}
/* 1x2 -> 2x1 */
-static void conv411(UINT8 *dst, int dst_wrap,
- UINT8 *src, int src_wrap,
+static void conv411(uint8_t *dst, int dst_wrap,
+ uint8_t *src, int src_wrap,
int width, int height)
{
int w, c;
- UINT8 *s1, *s2, *d;
+ uint8_t *s1, *s2, *d;
for(;height > 0; height--) {
s1 = src;
}
}
-static void img_copy(UINT8 *dst, int dst_wrap,
- UINT8 *src, int src_wrap,
+static void img_copy(uint8_t *dst, int dst_wrap,
+ uint8_t *src, int src_wrap,
int width, int height)
{
for(;height > 0; height--) {
static void yuv420p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \
int width, int height) \
{ \
- UINT8 *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr, *d, *d1, *d2; \
+ uint8_t *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; \
+ uint8_t *cm = cropTbl + MAX_NEG_CROP; \
unsigned int r, g, b; \
\
d = dst->data[0]; \
static void yuv422p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \
int width, int height) \
{ \
- UINT8 *y1_ptr, *cb_ptr, *cr_ptr, *d, *d1; \
+ uint8_t *y1_ptr, *cb_ptr, *cr_ptr, *d, *d1; \
int w, y, cb, cr, r_add, g_add, b_add, width2; \
- UINT8 *cm = cropTbl + MAX_NEG_CROP; \
+ uint8_t *cm = cropTbl + MAX_NEG_CROP; \
unsigned int r, g, b; \
\
d = dst->data[0]; \
{ \
int wrap, wrap3, x, y; \
int r, g, b, r1, g1, b1; \
- UINT8 *lum, *cb, *cr; \
- const UINT8 *p; \
+ uint8_t *lum, *cb, *cr; \
+ const uint8_t *p; \
\
lum = dst->data[0]; \
cb = dst->data[1]; \
cr = dst->data[2]; \
\
- wrap = width; \
- wrap3 = width * BPP; \
+ wrap = dst->linesize[0]; \
+ wrap3 = src->linesize[0]; \
p = src->data[0]; \
for(y=0;y<height;y+=2) { \
for(x=0;x<width;x+=2) { \
p += -wrap3 + 2 * BPP; \
lum += -wrap + 2; \
} \
- p += wrap3; \
- lum += wrap; \
+ p += wrap3 + (wrap3 - width * BPP); \
+ lum += wrap + (wrap - width); \
+ cb += dst->linesize[1] - width / 2; \
+ cr += dst->linesize[2] - width / 2; \
} \
} \
\
p += src_wrap; \
q += dst_wrap; \
} \
+} \
+ \
+static void pal8_to_ ## rgb_name(AVPicture *dst, AVPicture *src, \
+ int width, int height) \
+{ \
+ const unsigned char *p; \
+ unsigned char *q; \
+ int r, g, b, dst_wrap, src_wrap; \
+ int x, y; \
+ uint32_t v;\
+ const uint32_t *palette;\
+\
+ p = src->data[0]; \
+ src_wrap = src->linesize[0] - width; \
+ palette = (uint32_t *)src->data[1];\
+ \
+ q = dst->data[0]; \
+ dst_wrap = dst->linesize[0] - BPP * width; \
+ \
+ for(y=0;y<height;y++) { \
+ for(x=0;x<width;x++) { \
+ v = palette[p[0]];\
+ r = (v >> 16) & 0xff;\
+ g = (v >> 8) & 0xff;\
+ b = (v) & 0xff;\
+ RGB_OUT(q, r, g, b); \
+ q += BPP; \
+ p ++; \
+ } \
+ p += src_wrap; \
+ q += dst_wrap; \
+ } \
}
/* copy bit n to bits 0 ... n - 1 */
#define RGB_IN(r, g, b, s)\
{\
- unsigned int v = ((UINT16 *)(s))[0];\
+ unsigned int v = ((const uint16_t *)(s))[0];\
r = bitcopy_n(v >> (10 - 3), 3);\
g = bitcopy_n(v >> (5 - 3), 3);\
b = bitcopy_n(v << 3, 3);\
#define RGB_OUT(d, r, g, b)\
{\
- ((UINT16 *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;\
+ ((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;\
}
#define BPP 2
#define RGB_IN(r, g, b, s)\
{\
- unsigned int v = ((UINT16 *)(s))[0];\
+ unsigned int v = ((const uint16_t *)(s))[0];\
r = bitcopy_n(v >> (11 - 3), 3);\
g = bitcopy_n(v >> (5 - 2), 2);\
b = bitcopy_n(v << 3, 3);\
#define RGB_OUT(d, r, g, b)\
{\
- ((UINT16 *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
+ ((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
}
#define BPP 2
#define RGB_IN(r, g, b, s)\
{\
- unsigned int v = ((UINT32 *)(s))[0];\
+ unsigned int v = ((const uint32_t *)(s))[0];\
r = (v >> 16) & 0xff;\
g = (v >> 8) & 0xff;\
b = v & 0xff;\
#define RGB_OUT(d, r, g, b)\
{\
- ((UINT32 *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;\
+ ((uint32_t *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;\
}
#define BPP 4
int width, int height, int xor_mask)
{
int n;
- const UINT8 *s;
- UINT8 *d;
+ const uint8_t *s;
+ uint8_t *d;
int j, b, v, n1, src_wrap, dst_wrap, y;
s = src->data[0];
gray_to_mono(dst, src, width, height, 0x00);
}
+/* this is maybe slow, but allows for extensions */
+static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b)
+{
+ return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6));
+}
+
+/* XXX: put jpeg quantize code instead */
+static void rgb24_to_pal8(AVPicture *dst, AVPicture *src,
+ int width, int height)
+{
+ const unsigned char *p;
+ unsigned char *q;
+ int r, g, b, dst_wrap, src_wrap;
+ int x, y, i;
+ static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
+ uint32_t *pal;
+
+ p = src->data[0];
+ src_wrap = src->linesize[0] - 3 * width;
+
+ q = dst->data[0];
+ dst_wrap = dst->linesize[0] - width;
+
+ for(y=0;y<height;y++) {
+ for(x=0;x<width;x++) {
+ r = p[0];
+ g = p[1];
+ b = p[2];
+
+ q[0] = gif_clut_index(r, g, b);
+ q++;
+ p += 3;
+ }
+ p += src_wrap;
+ q += dst_wrap;
+ }
+
+ /* build palette */
+ pal = (uint32_t *)dst->data[1];
+ i = 0;
+ for(r = 0; r < 6; r++) {
+ for(g = 0; g < 6; g++) {
+ for(b = 0; b < 6; b++) {
+ pal[i++] = (0xff << 24) | (pal_value[r] << 16) |
+ (pal_value[g] << 8) | pal_value[b];
+ }
+ }
+ }
+ while (i < 256)
+ pal[i++] = 0;
+}
+
typedef struct ConvertEntry {
void (*convert)(AVPicture *dst, AVPicture *src, int width, int height);
} ConvertEntry;
[PIX_FMT_GRAY8] = {
.convert = rgb24_to_gray
},
+ [PIX_FMT_PAL8] = {
+ .convert = rgb24_to_pal8
+ },
},
[PIX_FMT_RGBA32] = {
[PIX_FMT_YUV420P] = {
.convert = monoblack_to_gray
},
},
+ [PIX_FMT_PAL8] = {
+ [PIX_FMT_RGB555] = {
+ .convert = pal8_to_rgb555
+ },
+ [PIX_FMT_RGB565] = {
+ .convert = pal8_to_rgb565
+ },
+ [PIX_FMT_BGR24] = {
+ .convert = pal8_to_bgr24
+ },
+ [PIX_FMT_RGB24] = {
+ .convert = pal8_to_rgb24
+ },
+ [PIX_FMT_RGBA32] = {
+ .convert = pal8_to_rgba32
+ },
+ },
};
static int avpicture_alloc(AVPicture *picture,
int pix_fmt, int width, int height)
{
- int size;
+ unsigned int size;
void *ptr;
size = avpicture_get_size(pix_fmt, width, height);
/* YUV to YUV */
if (dst_pix->is_yuv && src_pix->is_yuv) {
int x_shift, y_shift, w, h;
- void (*resize_func)(UINT8 *dst, int dst_wrap,
- UINT8 *src, int src_wrap,
+ void (*resize_func)(uint8_t *dst, int dst_wrap,
+ uint8_t *src, int src_wrap,
int width, int height);
/* compute chroma size of the smallest dimensions */
for(i = 1;i <= 2; i++)
resize_func(dst->data[i], dst->linesize[i],
src->data[i], src->linesize[i],
- w, h);
+ dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift);
return 0;
}
#endif
/* filter parameters: [-1 4 2 4 -1] // 8 */
-static void deinterlace_line(UINT8 *dst, UINT8 *lum_m4, UINT8 *lum_m3, UINT8 *lum_m2, UINT8 *lum_m1, UINT8 *lum,
+static void deinterlace_line(uint8_t *dst, uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
int size)
{
#ifndef HAVE_MMX
- UINT8 *cm = cropTbl + MAX_NEG_CROP;
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;
int sum;
for(;size > 0;size--) {
}
#endif
}
-static void deinterlace_line_inplace(UINT8 *lum_m4, UINT8 *lum_m3, UINT8 *lum_m2, UINT8 *lum_m1, UINT8 *lum,
+static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
int size)
{
#ifndef HAVE_MMX
- UINT8 *cm = cropTbl + MAX_NEG_CROP;
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;
int sum;
for(;size > 0;size--) {
/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
top field is copied as is, but the bottom field is deinterlaced
against the top field. */
-static void deinterlace_bottom_field(UINT8 *dst, int dst_wrap,
- UINT8 *src1, int src_wrap,
+static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap,
+ uint8_t *src1, int src_wrap,
int width, int height)
{
- UINT8 *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
+ uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
int y;
src_m2 = src1;
deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
}
-static void deinterlace_bottom_field_inplace(UINT8 *src1, int src_wrap,
+static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
int width, int height)
{
- UINT8 *src_m1, *src_0, *src_p1, *src_p2;
+ uint8_t *src_m1, *src_0, *src_p1, *src_p2;
int y;
- UINT8 *buf;
- buf = (UINT8*)av_malloc(width);
+ uint8_t *buf;
+ buf = (uint8_t*)av_malloc(width);
src_m1 = src1;
memcpy(buf,src_m1,width);