[FFmpeg-cvslog] lavc/tiff: Enable decoding of LinearRaw images

[Nick Renieris]

ffmpeg | branch: master | Nick Renieris <velocityra at gmail.com> | Thu Aug 29 16:10:54 2019 +0300| [63689b16ad723a23d59af81ee6167931600b1ef4] | committer: Paul B Mahol

lavc/tiff: Enable decoding of LinearRaw images

"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 at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=63689b16ad723a23d59af81ee6167931600b1ef4
---

 libavcodec/tiff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index ccd5678c23..e88cbb6976 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -1496,6 +1496,7 @@ 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:
@@ -1504,7 +1505,6 @@ 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);