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-rw-r--r--libavcodec/tiff.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index b4015178f2..8cbcbdf7a5 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -1038,6 +1038,18 @@ static int init_image(TiffContext *s, ThreadFrame *frame)
AV_RL32(s->pattern));
return AVERROR_PATCHWELCOME;
}
+ /* Force endianness as mentioned in 'DNG Specification: Chapter 3: BitsPerSample'
+ NOTE: The spec actually specifies big-endian, not sure why we need little-endian, but
+ such images don't work otherwise. Examples are images produced by Zenmuse X7. */
+ if ((s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG)
+ && (s->bpp != 8 && s->bpp != 16 && s->bpp != 32)) {
+ switch (s->avctx->pix_fmt) {
+ case AV_PIX_FMT_BAYER_RGGB16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16LE; break;
+ case AV_PIX_FMT_BAYER_BGGR16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16LE; break;
+ case AV_PIX_FMT_BAYER_GBRG16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16LE; break;
+ case AV_PIX_FMT_BAYER_GRBG16BE: s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16LE; break;
+ }
+ }
break;
case 10161:
switch (AV_RL32(s->pattern)) {