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lavc/tiff: move unpack_yuv() above the deflate functions

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2014-08-19 17:04:01 -03:00
parent 18e70006e7
commit b4231b4fed
1 changed files with 28 additions and 29 deletions
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57
libavcodec/tiff.c
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@ -283,6 +283,34 @@ static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
return 0;
}
static void unpack_yuv(TiffContext *s, AVFrame *p,
const uint8_t *src, int lnum)
{
int i, j, k;
int w = (s->width - 1) / s->subsampling[0] + 1;
uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
for (i = 0; i < w; i++) {
for (j = 0; j < s->subsampling[1]; j++)
for (k = 0; k < s->subsampling[0]; k++)
p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
*pu++ = *src++;
*pv++ = *src++;
}
}else{
for (i = 0; i < w; i++) {
for (j = 0; j < s->subsampling[1]; j++)
for (k = 0; k < s->subsampling[0]; k++)
p->data[0][(lnum + j) * p->linesize[0] +
i * s->subsampling[0] + k] = *src++;
*pu++ = *src++;
*pv++ = *src++;
}
}
}
#if CONFIG_ZLIB
static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
int size)
@ -383,35 +411,6 @@ static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
return ret;
}
static void unpack_yuv(TiffContext *s, AVFrame *p,
const uint8_t *src, int lnum)
{
int i, j, k;
int w = (s->width - 1) / s->subsampling[0] + 1;
uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
for (i = 0; i < w; i++) {
for (j = 0; j < s->subsampling[1]; j++)
for (k = 0; k < s->subsampling[0]; k++)
p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
*pu++ = *src++;
*pv++ = *src++;
}
}else{
for (i = 0; i < w; i++) {
for (j = 0; j < s->subsampling[1]; j++)
for (k = 0; k < s->subsampling[0]; k++)
p->data[0][(lnum + j) * p->linesize[0] +
i * s->subsampling[0] + k] = *src++;
*pu++ = *src++;
*pv++ = *src++;
}
}
}
static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
const uint8_t *src, int size, int strip_start, int lines)
{