From: Nick Renieris
This enables decoding of DNG images generated by the 'DJI Zenmuse X7'
digital camera
Samples: https://www.dji.com/gr/zenmuse-x7/info#downloads
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 61 +++
1 file changed, 51 inserti
From: Nick Renieris
Samples:
- Embedded JPEG images in the DNG images here:
https://www.photographyblog.com/previews/pentax_k1_photos
Signed-off-by: Nick Renieris
---
libavcodec/mjpegdec.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/libavcodec/mjpegdec.c b
From: Nick Renieris
Inited to (2^BitsPerSample)-1 as per the DNG Specification
This fixes decoding for "X7 CinemaDNG" samples here:
- https://www.dji.com/gr/zenmuse-x7/info#downloads
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/mjpegdec.c | 35 ---
1 file changed, 24 insertions(+), 11 deletions(-)
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 6391107f78..94cf73549d 100644
--- a/libavcodec/mjpegdec.c
+++
From: Nick Renieris
DNG samples here can now be decoded:
- https://www.photographyblog.com/previews/pentax_k1_photos
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 73 +++
1 file changed, 42 insertions(+), 31 deletions(-)
diff --git a/libavcod
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 42 ++
1 file changed, 22 insertions(+), 20 deletions(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index 37fda15162..174ca168c6 100644
--- a/libavcodec/tiff.c
+++ b/libavco
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 12
1 file changed, 12 insertions(+)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index 174ca168c6..9d20763186 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -1038,6 +1038,18 @@ static int in
From: Nick Renieris
In an image [1], the height was equal to the tile length (full-height
tile) and after `height % tile_length` was applied to them with the
current code, it resulted in the operating tile_length to be 0. This
commit makes this leftover logic only applies if it's necessary.
Sig
From: Nick Renieris
Some JPEGs [1] have incorrect DHT entries that map 2 codes to
the same value.
The second (last) mapping does not ever actually appear in the
code stream, therefore ignoring any mappings after the first one
fixes this.
Without this, an "mjpeg_decode_dc: bad vlc: 0:0" error is
From: Nick Renieris
Sample file:
https://drive.google.com/open?id=0B4JyRT3Lth5HVndyOTVOdWktM3J4TFEydTk1MnY3RWlpSzVB
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 21 +
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 25 -
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index a118c37c41..4620508d53 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -556,
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 34 +++---
1 file changed, 23 insertions(+), 11 deletions(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index d5673abb19..a118c37c41 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Sample file:
https://drive.google.com/open?id=0B4JyRT3Lth5HVndyOTVOdWktM3J4TFEydTk1MnY3RWlpSzVB
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 21 +
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff
From: Nick Renieris
In an image [1], the height was equal to the tile length (full-height
tile) and after `height % tile_length` was applied to them with the
current code, it resulted in the operating tile_length to be 0. This
commit makes this leftover logic only applies if it's necessary.
Sig
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 12
1 file changed, 12 insertions(+)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index 8db42d2bc5..7b9d7574c8 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -1035,6 +1035,18 @@ static int in
From: Nick Renieris
Samples:
- Embedded JPEG images in the DNG images here:
https://www.photographyblog.com/previews/pentax_k1_photos
Signed-off-by: Nick Renieris
---
libavcodec/mjpegdec.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/libavcodec/mjpegdec.c b
From: Nick Renieris
This enables decoding of DNG and CinemaDNG images generated by 'DJI Zenmuse X7'
Samples: https://www.dji.com/gr/zenmuse-x7/info#downloads
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 61 +++
1 file changed, 51 insertions(+
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/mjpegdec.c | 35 ---
1 file changed, 24 insertions(+), 11 deletions(-)
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 6391107f78..94cf73549d 100644
--- a/libavcodec/mjpegdec.c
+++
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 22 +-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index c7e2adb3ae..b6f626daca 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -679,6 +
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 34 +++---
1 file changed, 23 insertions(+), 11 deletions(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index d1d2e15f45..c7e2adb3ae 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 42 ++
1 file changed, 22 insertions(+), 20 deletions(-)
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index f577639dfa..8db42d2bc5 100644
--- a/libavcodec/tiff.c
+++ b/libavco
From: Nick Renieris
Some JPEGs [1] have incorrect DHT entries that map 2 codes to
the same value.
The second (last) mapping does not ever actually appear in the
code stream, therefore ignoring any mappings after the first one
fixes this.
Without this, an "mjpeg_decode_dc: bad vlc: 0:0" error is
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
DNG samples here can now be decoded:
- https://www.photographyblog.com/previews/pentax_k1_photos
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 79 +++
1 file changed, 45 insertions(+), 34 deletions(-)
diff --git a/libavcod
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
[1]: As specified in the DNG Specification - Chap
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
The modified code in ljpeg_decode_rgb_scan runs witho
From: Nick Renieris
Main image data in DNGs is usually comprised of tiles, each of which is a
Huffman-encoded lossless JPEG.
Changes in ljpeg_decode_rgb_scan are based on dcraw.
Tested for ljpeg regressions with:
`ffmpeg -f lavfi -i testsrc=d=1 -vcodec ljpeg test.avi`
`ffmpeg test.avi out.avi`
From: Nick Renieris
Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
- LinearizationTable tag
- BlackLevel tag
From: Nick Renieris
Adds the "-thumbnail" option, that works like the current "-subifd"
option, but only for non-full-sized images.
This is particularly useful for DNG images (see next commit) that
have SubIFDs that are not necessarily thumbnails.
Signed-off-by: Nick Renieris
---
libavcodec/t
From: Nick Renieris
SubIFDs that were part of more than single-sized "SubIFDs" tags were
being ignored due to existing code ignoring that case.
This patch makes is so the first entry is read, which is not ideal
but enough for some DNG images present in the wild to be decodeable
More specifically
From: Nick Renieris
Additionally:
- Renamed TIFF_WHITE_LEVEL to DNG_WHITE_LEVEL since it is specified
in the DNG spec.
- Added/changed some comments to be more precise in differentiating
between TIFF, TIFF/EP and DNG values.
Related to ticket: https://trac.ffmpeg.org/ticket/4364
Signed-off-
From: Nick Renieris
In DNG images with the .tiff extension, it solves the issue where the
TIFF thumbnail in IFD 0 was incorrectly parsed (related confusion: [1]).
Embedded thumbnails for DNG images can still be decoded with the added
"-dng_thumb" option.
Maintains current support for CinemaDNG (
From: Nick Renieris
In DNG images with the .tiff extension, it solves the issue where the
TIFF thumbnail in IFD 0 was incorrectly parsed (related confusion: [1]).
Embedded thumbnails for DNG images can still be decoded with the added
"-dng_thumb" option.
Additionally:
- Renamed TIFF_WHITE_LEVEL
From: Nick Renieris
Option "-page N" (page index N starts from 1) can now be used to specify which
TIFF page/subfile to decode.
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 25 -
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/libavcodec/tiff.c b/
From: Nick Renieris
Signed-off-by: Nick Renieris
---
libavutil/opt.c | 29 +++--
libavutil/opt.h | 1 +
2 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/libavutil/opt.c b/libavutil/opt.c
index 93d6c26c11..d409f3521a 100644
--- a/libavutil/opt.c
+++ b/liba
From: Nick Renieris
Option "-page N" (page index N starts from 1) can now be used to specify which
TIFF page/subfile to decode.
Signed-off-by: Nick Renieris
---
libavcodec/tiff.c | 25 -
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/libavcodec/tiff.c b/
From: Nick Renieris
Prints "DNG images are not supported" if it finds a TIFF image with
the 'DNGVersion' tag. In DNG images with the .tiff extension, it
solves the issue where the TIFF thumbnail in IFD 0 was incorrectly
parsed (related confusion: [1]). The user can still decode those
with the -
From: Nick Renieris
Prints "DNG images are not supported" if it finds a TIFF image with
the 'DNGVersion' tag. In DNG images with the .tiff extension it,
solves the issue where the TIFF thumbnail in IFD 0 was incorrectly
parsed (related confusion: [1]). Adds an option (-dng_thumbnail)
for dumpin
From: Nick Renieris
Prints "DNG images are not supported" if it finds a TIFF image with
the 'DNGVersion' tag. In DNG images with the .tiff extension it,
solves the issue where the TIFF thumbnail in IFD 0 was incorrectly
parsed (related confusion: [1]). Also prints the DNG version of the
file on
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