mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1636 lines
57 KiB
1636 lines
57 KiB
/* |
|
* Misc image convertion routines |
|
* Copyright (c) 2001, 2002, 2003 Fabrice Bellard. |
|
* |
|
* This library is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2 of the License, or (at your option) any later version. |
|
* |
|
* This library is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with this library; if not, write to the Free Software |
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
*/ |
|
#include "avcodec.h" |
|
#include "dsputil.h" |
|
|
|
#ifdef USE_FASTMEMCPY |
|
#include "fastmemcpy.h" |
|
#endif |
|
|
|
#ifdef HAVE_MMX |
|
#include "i386/mmx.h" |
|
#endif |
|
|
|
typedef struct PixFmtInfo { |
|
const char *name; |
|
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 */ |
|
static PixFmtInfo pix_fmt_info[PIX_FMT_NB] = { |
|
/* YUV formats */ |
|
[PIX_FMT_YUV420P] = { |
|
.name = "yuv420p", |
|
.nb_components = 3, .is_yuv = 1, |
|
.x_chroma_shift = 1, .y_chroma_shift = 1, |
|
}, |
|
[PIX_FMT_YUV422P] = { |
|
.name = "yuv422p", |
|
.nb_components = 3, .is_yuv = 1, |
|
.x_chroma_shift = 1, .y_chroma_shift = 0, |
|
}, |
|
[PIX_FMT_YUV444P] = { |
|
.name = "yuv444p", |
|
.nb_components = 3, .is_yuv = 1, |
|
.x_chroma_shift = 0, .y_chroma_shift = 0, |
|
}, |
|
[PIX_FMT_YUV422] = { |
|
.name = "yuv422", |
|
.nb_components = 1, .is_yuv = 1, .is_packed = 1, |
|
.x_chroma_shift = 1, .y_chroma_shift = 0, |
|
}, |
|
[PIX_FMT_YUV410P] = { |
|
.name = "yuv410p", |
|
.nb_components = 3, .is_yuv = 1, |
|
.x_chroma_shift = 2, .y_chroma_shift = 2, |
|
}, |
|
[PIX_FMT_YUV411P] = { |
|
.name = "yuv411p", |
|
.nb_components = 3, .is_yuv = 1, |
|
.x_chroma_shift = 2, .y_chroma_shift = 0, |
|
}, |
|
|
|
/* RGB formats */ |
|
[PIX_FMT_RGB24] = { |
|
.name = "rgb24", |
|
.nb_components = 1, .is_packed = 1, |
|
}, |
|
[PIX_FMT_BGR24] = { |
|
.name = "bgr24", |
|
.nb_components = 1, .is_packed = 1, |
|
}, |
|
[PIX_FMT_RGBA32] = { |
|
.name = "rgba32", |
|
.nb_components = 1, .is_packed = 1, .is_alpha = 1, |
|
}, |
|
[PIX_FMT_RGB565] = { |
|
.name = "rgb565", |
|
.nb_components = 1, .is_packed = 1, |
|
}, |
|
[PIX_FMT_RGB555] = { |
|
.name = "rgb555", |
|
.nb_components = 1, .is_packed = 1, .is_alpha = 1, |
|
}, |
|
|
|
/* gray / mono formats */ |
|
[PIX_FMT_GRAY8] = { |
|
.name = "gray", |
|
.nb_components = 1, .is_gray = 1, |
|
}, |
|
[PIX_FMT_MONOWHITE] = { |
|
.name = "monow", |
|
.nb_components = 1, .is_packed = 1, .is_gray = 1, |
|
}, |
|
[PIX_FMT_MONOBLACK] = { |
|
.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) |
|
{ |
|
if (pix_fmt_info[pix_fmt].is_yuv) { |
|
*h_shift = pix_fmt_info[pix_fmt].x_chroma_shift; |
|
*v_shift = pix_fmt_info[pix_fmt].y_chroma_shift; |
|
} else { |
|
*h_shift=0; |
|
*v_shift=0; |
|
} |
|
} |
|
|
|
const char *avcodec_get_pix_fmt_name(int pix_fmt) |
|
{ |
|
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB) |
|
return "???"; |
|
else |
|
return pix_fmt_info[pix_fmt].name; |
|
} |
|
|
|
/* Picture field are filled with 'ptr' addresses. Also return size */ |
|
int avpicture_fill(AVPicture *picture, uint8_t *ptr, |
|
int pix_fmt, int width, int height) |
|
{ |
|
int size, w2, h2, size2; |
|
PixFmtInfo *pinfo; |
|
|
|
pinfo = &pix_fmt_info[pix_fmt]; |
|
size = width * height; |
|
switch(pix_fmt) { |
|
case PIX_FMT_YUV420P: |
|
case PIX_FMT_YUV422P: |
|
case PIX_FMT_YUV444P: |
|
case PIX_FMT_YUV410P: |
|
case PIX_FMT_YUV411P: |
|
w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift; |
|
h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift; |
|
size2 = w2 * h2; |
|
picture->data[0] = ptr; |
|
picture->data[1] = picture->data[0] + size; |
|
picture->data[2] = picture->data[1] + size2; |
|
picture->linesize[0] = width; |
|
picture->linesize[1] = w2; |
|
picture->linesize[2] = w2; |
|
return size + 2 * size2; |
|
case PIX_FMT_RGB24: |
|
case PIX_FMT_BGR24: |
|
picture->data[0] = ptr; |
|
picture->data[1] = NULL; |
|
picture->data[2] = NULL; |
|
picture->linesize[0] = width * 3; |
|
return size * 3; |
|
case PIX_FMT_RGBA32: |
|
picture->data[0] = ptr; |
|
picture->data[1] = NULL; |
|
picture->data[2] = NULL; |
|
picture->linesize[0] = width * 4; |
|
return size * 4; |
|
case PIX_FMT_RGB555: |
|
case PIX_FMT_RGB565: |
|
case PIX_FMT_YUV422: |
|
picture->data[0] = ptr; |
|
picture->data[1] = NULL; |
|
picture->data[2] = NULL; |
|
picture->linesize[0] = width * 2; |
|
return size * 2; |
|
case PIX_FMT_GRAY8: |
|
picture->data[0] = ptr; |
|
picture->data[1] = NULL; |
|
picture->data[2] = NULL; |
|
picture->linesize[0] = width; |
|
return size; |
|
case PIX_FMT_MONOWHITE: |
|
case PIX_FMT_MONOBLACK: |
|
picture->data[0] = ptr; |
|
picture->data[1] = NULL; |
|
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; |
|
} |
|
} |
|
|
|
int avpicture_get_size(int pix_fmt, int width, int height) |
|
{ |
|
AVPicture dummy_pict; |
|
return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height); |
|
} |
|
|
|
|
|
/* XXX: totally non optimized */ |
|
|
|
static void yuv422_to_yuv420p(AVPicture *dst, AVPicture *src, |
|
int width, int height) |
|
{ |
|
uint8_t *lum, *cb, *cr; |
|
int x, y; |
|
const uint8_t *p; |
|
|
|
lum = dst->data[0]; |
|
cb = dst->data[1]; |
|
cr = dst->data[2]; |
|
p = src->data[0]; |
|
|
|
for(y=0;y<height;y+=2) { |
|
for(x=0;x<width;x+=2) { |
|
lum[0] = p[0]; |
|
cb[0] = p[1]; |
|
lum[1] = p[2]; |
|
cr[0] = p[3]; |
|
p += 4; |
|
lum += 2; |
|
cb++; |
|
cr++; |
|
} |
|
for(x=0;x<width;x+=2) { |
|
lum[0] = p[0]; |
|
lum[1] = p[2]; |
|
p += 4; |
|
lum += 2; |
|
} |
|
} |
|
} |
|
|
|
#define SCALEBITS 8 |
|
#define ONE_HALF (1 << (SCALEBITS - 1)) |
|
#define FIX(x) ((int) ((x) * (1L<<SCALEBITS) + 0.5)) |
|
|
|
/* XXX: use generic filter ? */ |
|
/* 1x2 -> 1x1 */ |
|
static void shrink2(uint8_t *dst, int dst_wrap, |
|
uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w; |
|
uint8_t *s1, *s2, *d; |
|
|
|
for(;height > 0; height--) { |
|
s1 = src; |
|
s2 = s1 + src_wrap; |
|
d = dst; |
|
for(w = width;w >= 4; w-=4) { |
|
d[0] = (s1[0] + s2[0]) >> 1; |
|
d[1] = (s1[1] + s2[1]) >> 1; |
|
d[2] = (s1[2] + s2[2]) >> 1; |
|
d[3] = (s1[3] + s2[3]) >> 1; |
|
s1 += 4; |
|
s2 += 4; |
|
d += 4; |
|
} |
|
for(;w > 0; w--) { |
|
d[0] = (s1[0] + s2[0]) >> 1; |
|
s1++; |
|
s2++; |
|
d++; |
|
} |
|
src += 2 * src_wrap; |
|
dst += dst_wrap; |
|
} |
|
} |
|
|
|
/* 2x2 -> 1x1 */ |
|
static void shrink22(uint8_t *dst, int dst_wrap, |
|
uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w; |
|
uint8_t *s1, *s2, *d; |
|
|
|
for(;height > 0; height--) { |
|
s1 = src; |
|
s2 = s1 + src_wrap; |
|
d = dst; |
|
for(w = width;w >= 4; w-=4) { |
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 1; |
|
d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 1; |
|
d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 1; |
|
d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 1; |
|
s1 += 8; |
|
s2 += 8; |
|
d += 4; |
|
} |
|
for(;w > 0; w--) { |
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 1; |
|
s1 += 2; |
|
s2 += 2; |
|
d++; |
|
} |
|
src += 2 * src_wrap; |
|
dst += dst_wrap; |
|
} |
|
} |
|
|
|
/* 1x1 -> 2x2 */ |
|
static void grow22(uint8_t *dst, int dst_wrap, |
|
uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w; |
|
uint8_t *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; |
|
} |
|
} |
|
|
|
/* 1x2 -> 2x1 */ |
|
static void conv411(uint8_t *dst, int dst_wrap, |
|
uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w, c; |
|
uint8_t *s1, *s2, *d; |
|
|
|
for(;height > 0; height--) { |
|
s1 = src; |
|
s2 = src + src_wrap; |
|
d = dst; |
|
for(w = width;w > 0; w--) { |
|
c = (s1[0] + s2[0]) >> 1; |
|
d[0] = c; |
|
d[1] = c; |
|
s1++; |
|
s2++; |
|
d += 2; |
|
} |
|
src += src_wrap * 2; |
|
dst += dst_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--) { |
|
memcpy(dst, src, width); |
|
dst += dst_wrap; |
|
src += src_wrap; |
|
} |
|
} |
|
|
|
#define SCALE_BITS 10 |
|
|
|
#define C_Y (76309 >> (16 - SCALE_BITS)) |
|
#define C_RV (117504 >> (16 - SCALE_BITS)) |
|
#define C_BU (138453 >> (16 - SCALE_BITS)) |
|
#define C_GU (13954 >> (16 - SCALE_BITS)) |
|
#define C_GV (34903 >> (16 - SCALE_BITS)) |
|
|
|
#define YUV_TO_RGB2(r, g, b, y1)\ |
|
{\ |
|
y = (y1 - 16) * C_Y;\ |
|
r = cm[(y + r_add) >> SCALE_BITS];\ |
|
g = cm[(y + g_add) >> SCALE_BITS];\ |
|
b = cm[(y + b_add) >> SCALE_BITS];\ |
|
} |
|
|
|
/* XXX: no chroma interpolating is done */ |
|
#define RGB_FUNCTIONS(rgb_name) \ |
|
\ |
|
static void yuv420p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \ |
|
int width, int height) \ |
|
{ \ |
|
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_t *cm = cropTbl + MAX_NEG_CROP; \ |
|
unsigned int r, g, b; \ |
|
\ |
|
d = dst->data[0]; \ |
|
y1_ptr = src->data[0]; \ |
|
cb_ptr = src->data[1]; \ |
|
cr_ptr = src->data[2]; \ |
|
width2 = (width + 1) >> 1; \ |
|
for(;height >= 2; height -= 2) { \ |
|
d1 = d; \ |
|
d2 = d + dst->linesize[0]; \ |
|
y2_ptr = y1_ptr + src->linesize[0]; \ |
|
for(w = width; w >= 2; w -= 2) { \ |
|
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 */ \ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \ |
|
RGB_OUT(d1, r, g, b); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[1]); \ |
|
RGB_OUT(d1 + BPP, r, g, b); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y2_ptr[0]); \ |
|
RGB_OUT(d2, r, g, b); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y2_ptr[1]); \ |
|
RGB_OUT(d2 + BPP, r, g, b); \ |
|
\ |
|
d1 += 2 * BPP; \ |
|
d2 += 2 * BPP; \ |
|
\ |
|
y1_ptr += 2; \ |
|
y2_ptr += 2; \ |
|
cb_ptr++; \ |
|
cr_ptr++; \ |
|
} \ |
|
/* handle odd width */ \ |
|
if (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)); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \ |
|
RGB_OUT(d1, r, g, b); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y2_ptr[0]); \ |
|
RGB_OUT(d2, r, g, b); \ |
|
d1 += BPP; \ |
|
d2 += BPP; \ |
|
y1_ptr++; \ |
|
y2_ptr++; \ |
|
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; \ |
|
} \ |
|
/* handle odd height */ \ |
|
if (height) { \ |
|
d1 = d; \ |
|
for(w = width; w >= 2; w -= 2) { \ |
|
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 2 pixels */ \ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \ |
|
RGB_OUT(d1, r, g, b); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[1]); \ |
|
RGB_OUT(d1 + BPP, r, g, b); \ |
|
\ |
|
d1 += 2 * BPP; \ |
|
\ |
|
y1_ptr += 2; \ |
|
cb_ptr++; \ |
|
cr_ptr++; \ |
|
} \ |
|
/* handle width */ \ |
|
if (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 2 pixels */ \ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \ |
|
RGB_OUT(d1, r, g, b); \ |
|
d1 += BPP; \ |
|
\ |
|
y1_ptr++; \ |
|
cb_ptr++; \ |
|
cr_ptr++; \ |
|
} \ |
|
} \ |
|
} \ |
|
\ |
|
/* XXX: no chroma interpolating is done */ \ |
|
static void yuv422p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \ |
|
int width, int height) \ |
|
{ \ |
|
uint8_t *y1_ptr, *cb_ptr, *cr_ptr, *d, *d1; \ |
|
int w, y, cb, cr, r_add, g_add, b_add, width2; \ |
|
uint8_t *cm = cropTbl + MAX_NEG_CROP; \ |
|
unsigned int r, g, b; \ |
|
\ |
|
d = dst->data[0]; \ |
|
y1_ptr = src->data[0]; \ |
|
cb_ptr = src->data[1]; \ |
|
cr_ptr = src->data[2]; \ |
|
width2 = (width + 1) >> 1; \ |
|
for(;height > 0; height --) { \ |
|
d1 = d; \ |
|
for(w = width; w >= 2; w -= 2) { \ |
|
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 2 pixels */ \ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \ |
|
RGB_OUT(d1, r, g, b); \ |
|
\ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[1]); \ |
|
RGB_OUT(d1 + BPP, r, g, b); \ |
|
\ |
|
d1 += 2 * BPP; \ |
|
\ |
|
y1_ptr += 2; \ |
|
cb_ptr++; \ |
|
cr_ptr++; \ |
|
} \ |
|
/* handle width */ \ |
|
if (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 2 pixels */ \ |
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \ |
|
RGB_OUT(d1, r, g, b); \ |
|
d1 += BPP; \ |
|
\ |
|
y1_ptr++; \ |
|
cb_ptr++; \ |
|
cr_ptr++; \ |
|
} \ |
|
d += dst->linesize[0]; \ |
|
y1_ptr += src->linesize[0] - width; \ |
|
cb_ptr += src->linesize[1] - width2; \ |
|
cr_ptr += src->linesize[2] - width2; \ |
|
} \ |
|
} \ |
|
\ |
|
static void rgb_name ## _to_yuv420p(AVPicture *dst, AVPicture *src, \ |
|
int width, int height) \ |
|
{ \ |
|
int wrap, wrap3, x, y; \ |
|
int r, g, b, r1, g1, b1; \ |
|
uint8_t *lum, *cb, *cr; \ |
|
const uint8_t *p; \ |
|
\ |
|
lum = dst->data[0]; \ |
|
cb = dst->data[1]; \ |
|
cr = dst->data[2]; \ |
|
\ |
|
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) { \ |
|
RGB_IN(r, g, b, p); \ |
|
r1 = r; \ |
|
g1 = g; \ |
|
b1 = b; \ |
|
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \ |
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \ |
|
RGB_IN(r, g, b, p + BPP); \ |
|
r1 += r; \ |
|
g1 += g; \ |
|
b1 += b; \ |
|
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + \ |
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \ |
|
p += wrap3; \ |
|
lum += wrap; \ |
|
\ |
|
RGB_IN(r, g, b, p); \ |
|
r1 += r; \ |
|
g1 += g; \ |
|
b1 += b; \ |
|
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \ |
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \ |
|
\ |
|
RGB_IN(r, g, b, p + BPP); \ |
|
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 += -wrap3 + 2 * BPP; \ |
|
lum += -wrap + 2; \ |
|
} \ |
|
p += wrap3 + (wrap3 - width * BPP); \ |
|
lum += wrap + (wrap - width); \ |
|
cb += dst->linesize[1] - width / 2; \ |
|
cr += dst->linesize[2] - width / 2; \ |
|
} \ |
|
} \ |
|
\ |
|
static void rgb_name ## _to_gray(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; \ |
|
\ |
|
p = src->data[0]; \ |
|
src_wrap = src->linesize[0] - BPP * width; \ |
|
\ |
|
q = dst->data[0]; \ |
|
dst_wrap = dst->linesize[0] - width; \ |
|
\ |
|
for(y=0;y<height;y++) { \ |
|
for(x=0;x<width;x++) { \ |
|
RGB_IN(r, g, b, p); \ |
|
q[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \ |
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \ |
|
q++; \ |
|
p += BPP; \ |
|
} \ |
|
p += src_wrap; \ |
|
q += dst_wrap; \ |
|
} \ |
|
} \ |
|
\ |
|
static void gray_to_ ## rgb_name(AVPicture *dst, AVPicture *src, \ |
|
int width, int height) \ |
|
{ \ |
|
const unsigned char *p; \ |
|
unsigned char *q; \ |
|
int r, dst_wrap, src_wrap; \ |
|
int x, y; \ |
|
\ |
|
p = src->data[0]; \ |
|
src_wrap = src->linesize[0] - width; \ |
|
\ |
|
q = dst->data[0]; \ |
|
dst_wrap = dst->linesize[0] - BPP * width; \ |
|
\ |
|
for(y=0;y<height;y++) { \ |
|
for(x=0;x<width;x++) { \ |
|
r = p[0]; \ |
|
RGB_OUT(q, r, r, r); \ |
|
q += BPP; \ |
|
p ++; \ |
|
} \ |
|
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 */ |
|
static inline unsigned int bitcopy_n(unsigned int a, int n) |
|
{ |
|
int mask; |
|
mask = (1 << n) - 1; |
|
return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask); |
|
} |
|
|
|
/* rgb555 handling */ |
|
|
|
#define RGB_IN(r, g, b, s)\ |
|
{\ |
|
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_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;\ |
|
} |
|
|
|
#define BPP 2 |
|
|
|
RGB_FUNCTIONS(rgb555) |
|
|
|
#undef RGB_IN |
|
#undef RGB_OUT |
|
#undef BPP |
|
|
|
/* rgb565 handling */ |
|
|
|
#define RGB_IN(r, g, b, s)\ |
|
{\ |
|
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_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\ |
|
} |
|
|
|
#define BPP 2 |
|
|
|
RGB_FUNCTIONS(rgb565) |
|
|
|
#undef RGB_IN |
|
#undef RGB_OUT |
|
#undef BPP |
|
|
|
/* bgr24 handling */ |
|
|
|
#define RGB_IN(r, g, b, s)\ |
|
{\ |
|
b = (s)[0];\ |
|
g = (s)[1];\ |
|
r = (s)[2];\ |
|
} |
|
|
|
#define RGB_OUT(d, r, g, b)\ |
|
{\ |
|
(d)[0] = b;\ |
|
(d)[1] = g;\ |
|
(d)[2] = r;\ |
|
} |
|
|
|
#define BPP 3 |
|
|
|
RGB_FUNCTIONS(bgr24) |
|
|
|
#undef RGB_IN |
|
#undef RGB_OUT |
|
#undef BPP |
|
|
|
/* rgb24 handling */ |
|
|
|
#define RGB_IN(r, g, b, s)\ |
|
{\ |
|
r = (s)[0];\ |
|
g = (s)[1];\ |
|
b = (s)[2];\ |
|
} |
|
|
|
#define RGB_OUT(d, r, g, b)\ |
|
{\ |
|
(d)[0] = r;\ |
|
(d)[1] = g;\ |
|
(d)[2] = b;\ |
|
} |
|
|
|
#define BPP 3 |
|
|
|
RGB_FUNCTIONS(rgb24) |
|
|
|
#undef RGB_IN |
|
#undef RGB_OUT |
|
#undef BPP |
|
|
|
/* rgba32 handling */ |
|
|
|
#define RGB_IN(r, g, b, s)\ |
|
{\ |
|
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_t *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;\ |
|
} |
|
|
|
#define BPP 4 |
|
|
|
RGB_FUNCTIONS(rgba32) |
|
|
|
#undef RGB_IN |
|
#undef RGB_OUT |
|
#undef BPP |
|
|
|
|
|
static void rgb24_to_rgb565(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; |
|
|
|
p = src->data[0]; |
|
src_wrap = src->linesize[0] - 3 * width; |
|
|
|
q = dst->data[0]; |
|
dst_wrap = dst->linesize[0] - 2 * width; |
|
|
|
for(y=0;y<height;y++) { |
|
for(x=0;x<width;x++) { |
|
r = p[0]; |
|
g = p[1]; |
|
b = p[2]; |
|
|
|
((unsigned short *)q)[0] = |
|
((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3); |
|
q += 2; |
|
p += 3; |
|
} |
|
p += src_wrap; |
|
q += dst_wrap; |
|
} |
|
} |
|
|
|
/* NOTE: we also add a dummy alpha bit */ |
|
static void rgb24_to_rgb555(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; |
|
|
|
p = src->data[0]; |
|
src_wrap = src->linesize[0] - 3 * width; |
|
|
|
q = dst->data[0]; |
|
dst_wrap = dst->linesize[0] - 2 * width; |
|
|
|
for(y=0;y<height;y++) { |
|
for(x=0;x<width;x++) { |
|
r = p[0]; |
|
g = p[1]; |
|
b = p[2]; |
|
|
|
((unsigned short *)q)[0] = |
|
((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000; |
|
q += 2; |
|
p += 3; |
|
} |
|
p += src_wrap; |
|
q += dst_wrap; |
|
} |
|
} |
|
|
|
static void mono_to_gray(AVPicture *dst, AVPicture *src, |
|
int width, int height, int xor_mask) |
|
{ |
|
const unsigned char *p; |
|
unsigned char *q; |
|
int v, dst_wrap, src_wrap; |
|
int y, w; |
|
|
|
p = src->data[0]; |
|
src_wrap = src->linesize[0] - ((width + 7) >> 3); |
|
|
|
q = dst->data[0]; |
|
dst_wrap = dst->linesize[0] - width; |
|
for(y=0;y<height;y++) { |
|
w = width; |
|
while (w >= 8) { |
|
v = *p++ ^ xor_mask; |
|
q[0] = -(v >> 7); |
|
q[1] = -((v >> 6) & 1); |
|
q[2] = -((v >> 5) & 1); |
|
q[3] = -((v >> 4) & 1); |
|
q[4] = -((v >> 3) & 1); |
|
q[5] = -((v >> 2) & 1); |
|
q[6] = -((v >> 1) & 1); |
|
q[7] = -((v >> 0) & 1); |
|
w -= 8; |
|
q += 8; |
|
} |
|
if (w > 0) { |
|
v = *p++ ^ xor_mask; |
|
do { |
|
q[0] = -((v >> 7) & 1); |
|
q++; |
|
v <<= 1; |
|
} while (--w); |
|
} |
|
p += src_wrap; |
|
q += dst_wrap; |
|
} |
|
} |
|
|
|
static void monowhite_to_gray(AVPicture *dst, AVPicture *src, |
|
int width, int height) |
|
{ |
|
mono_to_gray(dst, src, width, height, 0xff); |
|
} |
|
|
|
static void monoblack_to_gray(AVPicture *dst, AVPicture *src, |
|
int width, int height) |
|
{ |
|
mono_to_gray(dst, src, width, height, 0x00); |
|
} |
|
|
|
static void gray_to_mono(AVPicture *dst, AVPicture *src, |
|
int width, int height, int xor_mask) |
|
{ |
|
int n; |
|
const uint8_t *s; |
|
uint8_t *d; |
|
int j, b, v, n1, src_wrap, dst_wrap, y; |
|
|
|
s = src->data[0]; |
|
src_wrap = src->linesize[0] - width; |
|
|
|
d = dst->data[0]; |
|
dst_wrap = dst->linesize[0] - ((width + 7) >> 3); |
|
printf("%d %d\n", width, height); |
|
|
|
for(y=0;y<height;y++) { |
|
n = width; |
|
while (n >= 8) { |
|
v = 0; |
|
for(j=0;j<8;j++) { |
|
b = s[0]; |
|
s++; |
|
v = (v << 1) | (b >> 7); |
|
} |
|
d[0] = v ^ xor_mask; |
|
d++; |
|
n -= 8; |
|
} |
|
if (n > 0) { |
|
n1 = n; |
|
v = 0; |
|
while (n > 0) { |
|
b = s[0]; |
|
s++; |
|
v = (v << 1) | (b >> 7); |
|
n--; |
|
} |
|
d[0] = (v << (8 - (n1 & 7))) ^ xor_mask; |
|
d++; |
|
} |
|
s += src_wrap; |
|
d += dst_wrap; |
|
} |
|
} |
|
|
|
static void gray_to_monowhite(AVPicture *dst, AVPicture *src, |
|
int width, int height) |
|
{ |
|
gray_to_mono(dst, src, width, height, 0xff); |
|
} |
|
|
|
static void gray_to_monoblack(AVPicture *dst, AVPicture *src, |
|
int width, int height) |
|
{ |
|
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; |
|
|
|
/* add each new convertion function in this table */ |
|
/* constraints; |
|
- all non YUV modes must convert at least to and from PIX_FMT_RGB24 |
|
*/ |
|
static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = { |
|
[PIX_FMT_YUV420P] = { |
|
[PIX_FMT_RGB555] = { |
|
.convert = yuv420p_to_rgb555 |
|
}, |
|
[PIX_FMT_RGB565] = { |
|
.convert = yuv420p_to_rgb565 |
|
}, |
|
[PIX_FMT_BGR24] = { |
|
.convert = yuv420p_to_bgr24 |
|
}, |
|
[PIX_FMT_RGB24] = { |
|
.convert = yuv420p_to_rgb24 |
|
}, |
|
[PIX_FMT_RGBA32] = { |
|
.convert = yuv420p_to_rgba32 |
|
}, |
|
}, |
|
[PIX_FMT_YUV422P] = { |
|
[PIX_FMT_RGB555] = { |
|
.convert = yuv422p_to_rgb555 |
|
}, |
|
[PIX_FMT_RGB565] = { |
|
.convert = yuv422p_to_rgb565 |
|
}, |
|
[PIX_FMT_BGR24] = { |
|
.convert = yuv422p_to_bgr24 |
|
}, |
|
[PIX_FMT_RGB24] = { |
|
.convert = yuv422p_to_rgb24 |
|
}, |
|
[PIX_FMT_RGBA32] = { |
|
.convert = yuv422p_to_rgba32 |
|
}, |
|
}, |
|
[PIX_FMT_YUV422] = { |
|
[PIX_FMT_YUV420P] = { |
|
.convert = yuv422_to_yuv420p, |
|
}, |
|
}, |
|
|
|
[PIX_FMT_RGB24] = { |
|
[PIX_FMT_YUV420P] = { |
|
.convert = rgb24_to_yuv420p |
|
}, |
|
[PIX_FMT_RGB565] = { |
|
.convert = rgb24_to_rgb565 |
|
}, |
|
[PIX_FMT_RGB555] = { |
|
.convert = rgb24_to_rgb555 |
|
}, |
|
[PIX_FMT_GRAY8] = { |
|
.convert = rgb24_to_gray |
|
}, |
|
[PIX_FMT_PAL8] = { |
|
.convert = rgb24_to_pal8 |
|
}, |
|
}, |
|
[PIX_FMT_RGBA32] = { |
|
[PIX_FMT_YUV420P] = { |
|
.convert = rgba32_to_yuv420p |
|
}, |
|
[PIX_FMT_GRAY8] = { |
|
.convert = rgba32_to_gray |
|
}, |
|
}, |
|
[PIX_FMT_BGR24] = { |
|
[PIX_FMT_YUV420P] = { |
|
.convert = bgr24_to_yuv420p |
|
}, |
|
[PIX_FMT_GRAY8] = { |
|
.convert = bgr24_to_gray |
|
}, |
|
}, |
|
[PIX_FMT_RGB555] = { |
|
[PIX_FMT_YUV420P] = { |
|
.convert = rgb555_to_yuv420p |
|
}, |
|
[PIX_FMT_GRAY8] = { |
|
.convert = rgb555_to_gray |
|
}, |
|
}, |
|
[PIX_FMT_RGB565] = { |
|
[PIX_FMT_YUV420P] = { |
|
.convert = rgb565_to_yuv420p |
|
}, |
|
[PIX_FMT_GRAY8] = { |
|
.convert = rgb565_to_gray |
|
}, |
|
}, |
|
[PIX_FMT_GRAY8] = { |
|
[PIX_FMT_RGB555] = { |
|
.convert = gray_to_rgb555 |
|
}, |
|
[PIX_FMT_RGB565] = { |
|
.convert = gray_to_rgb565 |
|
}, |
|
[PIX_FMT_RGB24] = { |
|
.convert = gray_to_rgb24 |
|
}, |
|
[PIX_FMT_BGR24] = { |
|
.convert = gray_to_bgr24 |
|
}, |
|
[PIX_FMT_RGBA32] = { |
|
.convert = gray_to_rgba32 |
|
}, |
|
[PIX_FMT_MONOWHITE] = { |
|
.convert = gray_to_monowhite |
|
}, |
|
[PIX_FMT_MONOBLACK] = { |
|
.convert = gray_to_monoblack |
|
}, |
|
}, |
|
[PIX_FMT_MONOWHITE] = { |
|
[PIX_FMT_GRAY8] = { |
|
.convert = monowhite_to_gray |
|
}, |
|
}, |
|
[PIX_FMT_MONOBLACK] = { |
|
[PIX_FMT_GRAY8] = { |
|
.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) |
|
{ |
|
unsigned int size; |
|
void *ptr; |
|
|
|
size = avpicture_get_size(pix_fmt, width, height); |
|
if (size < 0) |
|
goto fail; |
|
ptr = av_malloc(size); |
|
if (!ptr) |
|
goto fail; |
|
avpicture_fill(picture, ptr, pix_fmt, width, height); |
|
return 0; |
|
fail: |
|
memset(picture, 0, sizeof(AVPicture)); |
|
return -1; |
|
} |
|
|
|
static void avpicture_free(AVPicture *picture) |
|
{ |
|
av_free(picture->data[0]); |
|
} |
|
|
|
/* XXX: always use linesize. Return -1 if not supported */ |
|
int img_convert(AVPicture *dst, int dst_pix_fmt, |
|
AVPicture *src, int src_pix_fmt, |
|
int src_width, int src_height) |
|
{ |
|
int i, ret, dst_width, dst_height, int_pix_fmt; |
|
PixFmtInfo *src_pix, *dst_pix; |
|
ConvertEntry *ce; |
|
AVPicture tmp1, *tmp = &tmp1; |
|
|
|
if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB || |
|
dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB) |
|
return -1; |
|
if (src_width <= 0 || src_height <= 0) |
|
return 0; |
|
|
|
dst_width = src_width; |
|
dst_height = src_height; |
|
|
|
dst_pix = &pix_fmt_info[dst_pix_fmt]; |
|
src_pix = &pix_fmt_info[src_pix_fmt]; |
|
if (src_pix_fmt == dst_pix_fmt) { |
|
/* XXX: incorrect */ |
|
/* same format: just copy */ |
|
for(i = 0; i < dst_pix->nb_components; i++) { |
|
int w, h; |
|
w = dst_width; |
|
h = dst_height; |
|
if (dst_pix->is_yuv && (i == 1 || i == 2)) { |
|
w >>= dst_pix->x_chroma_shift; |
|
h >>= dst_pix->y_chroma_shift; |
|
} |
|
img_copy(dst->data[i], dst->linesize[i], |
|
src->data[i], src->linesize[i], |
|
w, h); |
|
} |
|
return 0; |
|
} |
|
|
|
ce = &convert_table[src_pix_fmt][dst_pix_fmt]; |
|
if (ce->convert) { |
|
/* specific convertion routine */ |
|
ce->convert(dst, src, dst_width, dst_height); |
|
return 0; |
|
} |
|
|
|
/* gray to YUV */ |
|
if (dst_pix->is_yuv && src_pix_fmt == PIX_FMT_GRAY8) { |
|
int w, h, y; |
|
uint8_t *d; |
|
|
|
img_copy(dst->data[0], dst->linesize[0], |
|
src->data[0], src->linesize[0], |
|
dst_width, dst_height); |
|
/* fill U and V with 128 */ |
|
w = dst_width; |
|
h = dst_height; |
|
w >>= dst_pix->x_chroma_shift; |
|
h >>= dst_pix->y_chroma_shift; |
|
for(i = 1; i <= 2; i++) { |
|
d = dst->data[i]; |
|
for(y = 0; y< h; y++) { |
|
memset(d, 128, w); |
|
d += dst->linesize[i]; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* YUV to gray */ |
|
if (src_pix->is_yuv && dst_pix_fmt == PIX_FMT_GRAY8) { |
|
img_copy(dst->data[0], dst->linesize[0], |
|
src->data[0], src->linesize[0], |
|
dst_width, dst_height); |
|
return 0; |
|
} |
|
|
|
/* YUV to YUV */ |
|
if (dst_pix->is_yuv && src_pix->is_yuv) { |
|
int x_shift, y_shift, w, h; |
|
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 */ |
|
w = dst_width; |
|
h = dst_height; |
|
if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift) |
|
w >>= dst_pix->x_chroma_shift; |
|
else |
|
w >>= src_pix->x_chroma_shift; |
|
if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift) |
|
h >>= dst_pix->y_chroma_shift; |
|
else |
|
h >>= src_pix->y_chroma_shift; |
|
|
|
x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift); |
|
y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift); |
|
if (x_shift == 0 && y_shift == 0) { |
|
resize_func = img_copy; /* should never happen */ |
|
} else if (x_shift == 0 && y_shift == 1) { |
|
resize_func = shrink2; |
|
} else if (x_shift == 1 && y_shift == 1) { |
|
resize_func = shrink22; |
|
} else if (x_shift == -1 && y_shift == -1) { |
|
resize_func = grow22; |
|
} else if (x_shift == -1 && y_shift == 1) { |
|
resize_func = conv411; |
|
} else { |
|
/* currently not handled */ |
|
return -1; |
|
} |
|
|
|
img_copy(dst->data[0], dst->linesize[0], |
|
src->data[0], src->linesize[0], |
|
dst_width, dst_height); |
|
|
|
for(i = 1;i <= 2; i++) |
|
resize_func(dst->data[i], dst->linesize[i], |
|
src->data[i], src->linesize[i], |
|
w, h); |
|
return 0; |
|
} |
|
|
|
/* try to use an intermediate format */ |
|
if (src_pix_fmt == PIX_FMT_MONOWHITE || |
|
src_pix_fmt == PIX_FMT_MONOBLACK || |
|
dst_pix_fmt == PIX_FMT_MONOWHITE || |
|
dst_pix_fmt == PIX_FMT_MONOBLACK) { |
|
int_pix_fmt = PIX_FMT_GRAY8; |
|
} else { |
|
int_pix_fmt = PIX_FMT_RGB24; |
|
} |
|
if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0) |
|
return -1; |
|
ret = -1; |
|
if (img_convert(tmp, int_pix_fmt, |
|
src, src_pix_fmt, src_width, src_height) < 0) |
|
goto fail1; |
|
if (img_convert(dst, dst_pix_fmt, |
|
tmp, int_pix_fmt, dst_width, dst_height) < 0) |
|
goto fail1; |
|
ret = 0; |
|
fail1: |
|
avpicture_free(tmp); |
|
return ret; |
|
} |
|
|
|
|
|
#ifdef HAVE_MMX |
|
#define DEINT_INPLACE_LINE_LUM \ |
|
movd_m2r(lum_m4[0],mm0);\ |
|
movd_m2r(lum_m3[0],mm1);\ |
|
movd_m2r(lum_m2[0],mm2);\ |
|
movd_m2r(lum_m1[0],mm3);\ |
|
movd_m2r(lum[0],mm4);\ |
|
punpcklbw_r2r(mm7,mm0);\ |
|
movd_r2m(mm2,lum_m4[0]);\ |
|
punpcklbw_r2r(mm7,mm1);\ |
|
punpcklbw_r2r(mm7,mm2);\ |
|
punpcklbw_r2r(mm7,mm3);\ |
|
punpcklbw_r2r(mm7,mm4);\ |
|
paddw_r2r(mm3,mm1);\ |
|
psllw_i2r(1,mm2);\ |
|
paddw_r2r(mm4,mm0);\ |
|
psllw_i2r(2,mm1);\ |
|
paddw_r2r(mm6,mm2);\ |
|
paddw_r2r(mm2,mm1);\ |
|
psubusw_r2r(mm0,mm1);\ |
|
psrlw_i2r(3,mm1);\ |
|
packuswb_r2r(mm7,mm1);\ |
|
movd_r2m(mm1,lum_m2[0]); |
|
|
|
#define DEINT_LINE_LUM \ |
|
movd_m2r(lum_m4[0],mm0);\ |
|
movd_m2r(lum_m3[0],mm1);\ |
|
movd_m2r(lum_m2[0],mm2);\ |
|
movd_m2r(lum_m1[0],mm3);\ |
|
movd_m2r(lum[0],mm4);\ |
|
punpcklbw_r2r(mm7,mm0);\ |
|
punpcklbw_r2r(mm7,mm1);\ |
|
punpcklbw_r2r(mm7,mm2);\ |
|
punpcklbw_r2r(mm7,mm3);\ |
|
punpcklbw_r2r(mm7,mm4);\ |
|
paddw_r2r(mm3,mm1);\ |
|
psllw_i2r(1,mm2);\ |
|
paddw_r2r(mm4,mm0);\ |
|
psllw_i2r(2,mm1);\ |
|
paddw_r2r(mm6,mm2);\ |
|
paddw_r2r(mm2,mm1);\ |
|
psubusw_r2r(mm0,mm1);\ |
|
psrlw_i2r(3,mm1);\ |
|
packuswb_r2r(mm7,mm1);\ |
|
movd_r2m(mm1,dst[0]); |
|
#endif |
|
|
|
/* filter parameters: [-1 4 2 4 -1] // 8 */ |
|
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_t *cm = cropTbl + MAX_NEG_CROP; |
|
int sum; |
|
|
|
for(;size > 0;size--) { |
|
sum = -lum_m4[0]; |
|
sum += lum_m3[0] << 2; |
|
sum += lum_m2[0] << 1; |
|
sum += lum_m1[0] << 2; |
|
sum += -lum[0]; |
|
dst[0] = cm[(sum + 4) >> 3]; |
|
lum_m4++; |
|
lum_m3++; |
|
lum_m2++; |
|
lum_m1++; |
|
lum++; |
|
dst++; |
|
} |
|
#else |
|
|
|
{ |
|
mmx_t rounder; |
|
rounder.uw[0]=4; |
|
rounder.uw[1]=4; |
|
rounder.uw[2]=4; |
|
rounder.uw[3]=4; |
|
pxor_r2r(mm7,mm7); |
|
movq_m2r(rounder,mm6); |
|
} |
|
for (;size > 3; size-=4) { |
|
DEINT_LINE_LUM |
|
lum_m4+=4; |
|
lum_m3+=4; |
|
lum_m2+=4; |
|
lum_m1+=4; |
|
lum+=4; |
|
dst+=4; |
|
} |
|
#endif |
|
} |
|
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_t *cm = cropTbl + MAX_NEG_CROP; |
|
int sum; |
|
|
|
for(;size > 0;size--) { |
|
sum = -lum_m4[0]; |
|
sum += lum_m3[0] << 2; |
|
sum += lum_m2[0] << 1; |
|
lum_m4[0]=lum_m2[0]; |
|
sum += lum_m1[0] << 2; |
|
sum += -lum[0]; |
|
lum_m2[0] = cm[(sum + 4) >> 3]; |
|
lum_m4++; |
|
lum_m3++; |
|
lum_m2++; |
|
lum_m1++; |
|
lum++; |
|
} |
|
#else |
|
|
|
{ |
|
mmx_t rounder; |
|
rounder.uw[0]=4; |
|
rounder.uw[1]=4; |
|
rounder.uw[2]=4; |
|
rounder.uw[3]=4; |
|
pxor_r2r(mm7,mm7); |
|
movq_m2r(rounder,mm6); |
|
} |
|
for (;size > 3; size-=4) { |
|
DEINT_INPLACE_LINE_LUM |
|
lum_m4+=4; |
|
lum_m3+=4; |
|
lum_m2+=4; |
|
lum_m1+=4; |
|
lum+=4; |
|
} |
|
#endif |
|
} |
|
|
|
/* 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_t *dst, int dst_wrap, |
|
uint8_t *src1, int src_wrap, |
|
int width, int height) |
|
{ |
|
uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2; |
|
int y; |
|
|
|
src_m2 = src1; |
|
src_m1 = src1; |
|
src_0=&src_m1[src_wrap]; |
|
src_p1=&src_0[src_wrap]; |
|
src_p2=&src_p1[src_wrap]; |
|
for(y=0;y<(height-2);y+=2) { |
|
memcpy(dst,src_m1,width); |
|
dst += dst_wrap; |
|
deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width); |
|
src_m2 = src_0; |
|
src_m1 = src_p1; |
|
src_0 = src_p2; |
|
src_p1 += 2*src_wrap; |
|
src_p2 += 2*src_wrap; |
|
dst += dst_wrap; |
|
} |
|
memcpy(dst,src_m1,width); |
|
dst += dst_wrap; |
|
/* do last line */ |
|
deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width); |
|
} |
|
|
|
static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap, |
|
int width, int height) |
|
{ |
|
uint8_t *src_m1, *src_0, *src_p1, *src_p2; |
|
int y; |
|
uint8_t *buf; |
|
buf = (uint8_t*)av_malloc(width); |
|
|
|
src_m1 = src1; |
|
memcpy(buf,src_m1,width); |
|
src_0=&src_m1[src_wrap]; |
|
src_p1=&src_0[src_wrap]; |
|
src_p2=&src_p1[src_wrap]; |
|
for(y=0;y<(height-2);y+=2) { |
|
deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width); |
|
src_m1 = src_p1; |
|
src_0 = src_p2; |
|
src_p1 += 2*src_wrap; |
|
src_p2 += 2*src_wrap; |
|
} |
|
/* do last line */ |
|
deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width); |
|
av_free(buf); |
|
} |
|
|
|
|
|
/* deinterlace - if not supported return -1 */ |
|
int avpicture_deinterlace(AVPicture *dst, AVPicture *src, |
|
int pix_fmt, int width, int height) |
|
{ |
|
int i; |
|
|
|
if (pix_fmt != PIX_FMT_YUV420P && |
|
pix_fmt != PIX_FMT_YUV422P && |
|
pix_fmt != PIX_FMT_YUV444P) |
|
return -1; |
|
if ((width & 3) != 0 || (height & 3) != 0) |
|
return -1; |
|
|
|
for(i=0;i<3;i++) { |
|
if (i == 1) { |
|
switch(pix_fmt) { |
|
case PIX_FMT_YUV420P: |
|
width >>= 1; |
|
height >>= 1; |
|
break; |
|
case PIX_FMT_YUV422P: |
|
width >>= 1; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
if (src == dst) { |
|
deinterlace_bottom_field_inplace(src->data[i], src->linesize[i], |
|
width, height); |
|
} else { |
|
deinterlace_bottom_field(dst->data[i],dst->linesize[i], |
|
src->data[i], src->linesize[i], |
|
width, height); |
|
} |
|
} |
|
#ifdef HAVE_MMX |
|
emms(); |
|
#endif |
|
return 0; |
|
} |
|
|
|
#undef FIX
|
|
|