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[FFmpeg-devel,v16,15/15] lavc/tiff: Enable decoding of LinearRaw images

Message ID 20190828122723.19640-15-velocityra@gmail.com
State Superseded
Headers show

Commit Message

velocityra@gmail.com Aug. 28, 2019, 12:27 p.m. UTC 
From: Nick Renieris <velocityra@gmail.com>

"LinearRaw" is a value that the PhotometricInterpretation tag can be set
to on DNG images that contain color information for all channels instead
of being bayer-encoded ("CFA" value).

The DNG decoder is complete enough that we can enable this now.

Sample:
- http://www.rawsamples.ch/raws/nikon/SCANNER_NIKON_LS5000.DNG

Signed-off-by: Nick Renieris <velocityra@gmail.com>
---
 libavcodec/tiff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index c927400a40..da8f5b133e 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -1495,6 +1495,7 @@  static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
         case TIFF_PHOTOMETRIC_SEPARATED:
         case TIFF_PHOTOMETRIC_YCBCR:
         case TIFF_PHOTOMETRIC_CFA:
+        case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
             s->photometric = value;
             break;
         case TIFF_PHOTOMETRIC_ALPHA_MASK:
@@ -1503,7 +1504,6 @@  static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
         case TIFF_PHOTOMETRIC_ITU_LAB:
         case TIFF_PHOTOMETRIC_LOG_L:
         case TIFF_PHOTOMETRIC_LOG_LUV:
-        case TIFF_PHOTOMETRIC_LINEAR_RAW:
             avpriv_report_missing_feature(s->avctx,
                                           "PhotometricInterpretation 0x%04X",
                                           value);