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| author | Carl Eugen Hoyos <ceffmpeg@gmail.com> | 2019-03-09 11:05:36 +0100 |
|---|---|---|
| committer | Carl Eugen Hoyos <ceffmpeg@gmail.com> | 2019-03-20 17:04:55 +0100 |
| commit | 6fcf7adc019b29926ce7b096640cfdf714074bcd (patch) | |
| tree | a71dacf65b62de89c766981c5088cd5cfd4c950a /libavcodec/tiff.c | |
| parent | 4b32f8b3ebfa011fcc5991bcaa97c3f5b61b49ad (diff) | |
| download | ffmpeg-6fcf7adc019b29926ce7b096640cfdf714074bcd.tar.gz | |
lavc/tiff: Support decoding 16bit cmyk.
Diffstat (limited to 'libavcodec/tiff.c')
| -rw-r--r-- | libavcodec/tiff.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index 112f5b52f4..828ed9e2e9 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -1547,6 +1547,22 @@ again: } dst += p->linesize[plane]; } + } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED && + s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) { + dst = p->data[plane]; + for (i = 0; i < s->height; i++) { + for (j = 0; j < s->width; j++) { + uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6); + uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k; + uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k; + uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k; + AV_WB16(dst + 8 * j , r * 65537 >> 32); + AV_WB16(dst + 8 * j + 2, g * 65537 >> 32); + AV_WB16(dst + 8 * j + 4, b * 65537 >> 32); + AV_WB16(dst + 8 * j + 6, 65535); + } + dst += p->linesize[plane]; + } } } |