[SCM] libav/experimental: tiffdec: support predictor type 2 with RGB48 pixel format
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Aug 10 16:02:48 UTC 2014
The following commit has been merged in the experimental branch:
commit e75ef2b7f48b96a9b6c8646058713899d5ea5731
Author: Jean First <jeanfirst at gmail.com>
Date: Sun Sep 25 16:00:04 2011 +0200
tiffdec: support predictor type 2 with RGB48 pixel format
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index d801302..6c72dc8 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -635,10 +635,24 @@ static int decode_frame(AVCodecContext *avctx,
dst = p->data[0];
soff = s->bpp >> 3;
ssize = s->width * soff;
- for (i = 0; i < s->height; i++) {
- for (j = soff; j < ssize; j++)
- dst[j] += dst[j - soff];
- dst += stride;
+ if (s->avctx->pix_fmt == PIX_FMT_RGB48LE) {
+ for (i = 0; i < s->height; i++) {
+ for (j = soff; j < ssize; j += 2)
+ AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
+ dst += stride;
+ }
+ } else if (s->avctx->pix_fmt == PIX_FMT_RGB48BE) {
+ for (i = 0; i < s->height; i++) {
+ for (j = soff; j < ssize; j += 2)
+ AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
+ dst += stride;
+ }
+ } else {
+ for (i = 0; i < s->height; i++) {
+ for (j = soff; j < ssize; j++)
+ dst[j] += dst[j - soff];
+ dst += stride;
+ }
}
}
--
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