TIFF_TILE_LENGTH = 0x143,
TIFF_TILE_OFFSETS = 0x144,
TIFF_TILE_BYTE_COUNTS = 0x145,
+ TIFF_EXTRASAMPLES = 0x152,
TIFF_YCBCR_COEFFICIENTS = 0x211,
TIFF_YCBCR_SUBSAMPLING = 0x212,
TIFF_YCBCR_POSITIONING = 0x213,
uint32_t res[2] = { s->dpi, 1 }; // image resolution (72/1)
uint16_t bpp_tab[4];
int ret = -1;
- int is_yuv = 0;
+ int is_yuv = 0, alpha = 0;
int shift_h, shift_v;
*p = *pict;
switch (avctx->pix_fmt) {
case PIX_FMT_RGBA64LE:
case PIX_FMT_RGBA:
+ alpha = 1;
case PIX_FMT_RGB48LE:
case PIX_FMT_RGB24:
s->photometric_interpretation = 2;
case PIX_FMT_GRAY8:
avctx->bits_per_coded_sample = 0x28;
case PIX_FMT_GRAY8A:
+ alpha = avctx->pix_fmt == PIX_FMT_GRAY8A;
case PIX_FMT_GRAY16LE:
case PIX_FMT_MONOBLACK:
s->photometric_interpretation = 1;
}
add_entry(s, TIFF_PAL, TIFF_SHORT, 256 * 3, pal);
}
+ if (alpha)
+ add_entry1(s,TIFF_EXTRASAMPLES, TIFF_SHORT, 2);
if (is_yuv){
/** according to CCIR Recommendation 601.1 */
uint32_t refbw[12] = {15, 1, 235, 1, 128, 1, 240, 1, 128, 1, 240, 1};