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rgba32 convert

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Originally committed as revision 1794 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2003-04-19 16:21:25 +00:00
parent 5ae2c73e4d
commit 6d93f19449
1 changed files with 32 additions and 2 deletions
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34
libavcodec/imgconvert.c
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@ -119,7 +119,7 @@ static PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
/* paletted formats */
[PIX_FMT_PAL8] = {
.name = "pal8",
.nb_components = 1, .is_packed = 1, .is_paletted = 1,
.nb_components = 1, .is_packed = 1, .is_alpha = 1, .is_paletted = 1,
},
};
@ -989,7 +989,6 @@ static void gray_to_mono(AVPicture *dst, AVPicture *src,
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;
@ -1085,6 +1084,34 @@ static void rgb24_to_pal8(AVPicture *dst, AVPicture *src,
pal[i++] = 0;
}
static void rgba32_to_rgb24(AVPicture *dst, AVPicture *src,
int width, int height)
{
const uint8_t *s;
uint8_t *d;
int src_wrap, dst_wrap, j, y;
unsigned int v;
s = src->data[0];
src_wrap = src->linesize[0] - width * 4;
d = dst->data[0];
dst_wrap = dst->linesize[0] - width * 3;
for(y=0;y<height;y++) {
for(j = 0;j < width; j++) {
v = *(uint32_t *)s;
s += 4;
d[0] = v >> 16;
d[1] = v >> 8;
d[2] = v;
d += 3;
}
s += src_wrap;
d += dst_wrap;
}
}
typedef struct ConvertEntry {
void (*convert)(AVPicture *dst, AVPicture *src, int width, int height);
} ConvertEntry;
@ -1158,6 +1185,9 @@ static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
[PIX_FMT_GRAY8] = {
.convert = rgba32_to_gray
},
[PIX_FMT_RGB24] = {
.convert = rgba32_to_rgb24
},
},
[PIX_FMT_BGR24] = {
[PIX_FMT_YUV420P] = {