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107 Commits

Author SHA1 Message Date
Anton Khirnov
ae5e1f3d66 tiff: Check that there is no aliasing in pixel format selection 
Fixes possible issues with unexpected bpp/bppcount values.

CC: libav-stable@libav.org
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Bug-Id: CVE-2014-8544
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-03-08 19:14:14 +01:00
Paul B Mahol
f86f39cb9b tiff: support decoding GBRP and GBRAP formats 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-01-14 17:17:24 +01:00
Carl Eugen Hoyos
3a3790b8f8 tiff: support encoding and decoding 64bit images 2014-12-18 23:22:59 +01:00
Diego Elio Pettenò
12640e4cbb tiff: Return proper error for missing LZMA compression 
The LZMA support is a semi-official extension supported by libtiff 4.0.0
and later.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-08-18 14:23:24 +02:00
Diego Elio Pettenò
2597a842a0 tiff: Improve grayscale support 
Only use PAL8 if palette is present, else use GRAY8 for pixfmt.

Instead of simulating a grayscale palette, use real grayscale pixels, if no
palette is actually defined.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-08-10 15:21:44 +02:00
Carl Eugen Hoyos
60cbd6ad84 tiff: support reading gray+alpha at 8 bits 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-08-04 12:57:39 +01:00
Vittorio Giovara
bcc5f69b33 tiff: support reading gray+alpha at 16 bits 2014-08-04 12:57:38 +01:00
Diego Biurrun
df507d5aa0 tiff: Replace deprecated PIX_FMT names by modern ones 2014-08-02 12:54:37 -07:00
Janne Grunau
a9f3f5fadb Revert "tiff: support reading gray+alpha at 8 bits" 
This reverts commit b31d76e45f as it
uses an unkown pixel format.
 2014-07-21 08:35:32 +02:00
Carl Eugen Hoyos
b31d76e45f tiff: support reading gray+alpha at 8 bits 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-07-20 23:32:13 +01:00
Jean First
e75ef2b7f4 tiffdec: support predictor type 2 with RGB48 pixel format 2014-04-12 14:52:10 -04:00
Justin Ruggles
345a96c327 tiffdec: remove an unneeded variable 2014-04-12 14:52:10 -04:00
Justin Ruggles
a9b046fb0a tiff: use a better name and enum values for PhotometricInterpretation 
Also add additional known values and log as missing features.
 2014-04-12 14:52:07 -04:00
Justin Ruggles
fdbe18b7b0 tiffdec: use a single strip if RowsPerStrip is 0 
The spec does not specify that 0 is an error condition, and there
are samples which use 0 when the whole image is in one strip.
 2014-04-12 14:49:08 -04:00
Justin Ruggles
0a467a9b59 tiffdec: use bytestream2 to simplify overread/overwrite protection 
Based on a patch by Paul B Mahol <onemda@gmail.com>

CC:libav-stable@libav.org
 2014-04-12 14:49:08 -04:00
Justin Ruggles
58bc38a5f2 tiffdec: use correct data type for palette entries and set alpha to 0xFF 2014-04-12 14:49:07 -04:00
Jean First
bf2064f046 tiffdec: rename variables for consistency and fix variable shadowing 
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
 2014-04-12 14:49:07 -04:00
Anton Khirnov
c265b8bb76 tiff: stop using deprecated avcodec_set_dimensions 2013-10-31 20:14:16 +01:00
Luca Barbato
9c22169769 tiff: do not overread the source buffer 
At least 2 bytes from the source are read every loop.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-07 17:23:53 +02:00
Luca Barbato
999ccd2d0a tiff: cleanup the error paths 
Return the proper error values and optionally report them.
 2013-06-07 17:23:53 +02:00
Luca Barbato
016c5b066d tiff: refactor fax support in a separate function 2013-06-07 17:23:53 +02:00
Luca Barbato
103937681d tiff: refactor deflate support in a separate function 
Report when zlib support is missing.
 2013-06-07 17:23:53 +02:00
Diego Biurrun
46ce9ded96 tiff: K&R formatting cosmetics 2013-06-02 17:59:34 +02:00
Anton Khirnov
759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Anton Khirnov
b2a7b81b9c tiff: return meaningful error codes. 2013-01-06 13:31:40 +01:00
Anton Khirnov
df9b956751 lavc: fix decode_frame() third parameter semantics for video decoders 
It's got_frame, not data size
 2012-12-04 21:45:36 +01:00
Anton Khirnov
594d4d5df3 lavc: add a wrapper for AVCodecContext.get_buffer(). 
It will be useful in the upcoming transition to refcounted AVFrames.
 2012-12-04 21:41:59 +01:00
Diego Biurrun
d5c62122a7 Move av_reverse table to libavcodec 
It is only used in that library.
 2012-10-12 20:39:18 +02:00
Anton Khirnov
716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Alex Converse
df6c3f9fb3 tiffdec: Add support for GRAY16LE. 
Tested with the GraphicsMagick TIFF archive and Libav generated files.
 2012-09-19 11:05:36 -07:00
Martin Storsjö
1d9c2dc89a Don't include common.h from avutil.h 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-08-15 22:32:06 +03:00
Anton Khirnov
36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Alex Converse
f346b6bbeb tiffdec: K&R cosmetics 2012-04-13 12:58:19 -07:00
Alex Converse
90a4306007 tiffdec: Add a malloc check and refactor another. 2012-04-13 09:49:13 -07:00
Martin Storsjö
00c3b67b8a cosmetics: Align codec declarations 
Also break some long lines, remove codec function placeholder comments
and add spaces in sample/pixel format lists.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-04-06 22:37:38 +03:00
Diego Biurrun
a92be9b856 Replace memset(0) by zero initializations. 
Also remove one pointless zero initialization in rangecoder.c.
 2012-03-28 09:38:33 +02:00
Alex Converse
fd0be63049 tiffdec: Prevent illegal memory access caused by recycled pointers. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-03-07 15:40:42 -08:00
Diego Biurrun
324deaa268 Replace AVFrame pointer type punning by proper struct member assignments. 2012-03-01 23:11:13 +01:00
Diego Biurrun
562b6c744a Remove unnecessary AVFrame pointer casts. 2012-03-01 23:11:10 +01:00
Alex Converse
447363870f tiff: Prevent overreads in the type_sizes array. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 16:23:51 -08:00
Alex Converse
e32548d133 tiff: Make the TIFF_LONG and TIFF_SHORT types unsigned. 
TIFF v6.0 (unimplemented) adds signed equivalents.
 2012-02-23 16:23:51 -08:00
Laurent Aimar
04a845caa7 tiffdec: fix out of bound reads/writes 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-10 21:36:13 +02:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Diego Biurrun
f6f95d4e49 doxygen: consistently place brief description 2011-07-14 20:49:37 +02:00
Stefano Sabatini
1863a3c7aa tiff: print log in case of unknown / unsupported tag. 
Helps debugging.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-06-05 12:49:14 +02:00
Stefano Sabatini
a43458d7eb tiff: fix linesize for mono-white/black formats. 
Fix decoding of file Test_1bpp.tif

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-06-05 12:49:14 +02:00
Stefano Sabatini
7ca5338b49 tiff: set palette in the context when specified in TIFF_PAL tag 
Since image initialization was moved after tag parsing, the
palette needs to be specified in the context and then copied
to the allocated image in init_image().

Fixes a regression with TIFF images that have palette data,
trac issue #230, file Test_Flate_8bpp.tif.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-05-24 19:33:40 +02:00
Stefano Sabatini
bbc572a2c4 tiff: add support for SamplesPerPixel tag in tiff_decode_tag() 
Format detection and internal frame initialization is moved to a
separate init_image() function, which is called when all the tags have
been read, and so both BitsPerSample and SamplesPerPixel information
has been collected.

This fixes decoding of the file 11.tiff from roundup issue #1925.

Based on a patch by Kostya Shishkov <kostya.shishkov@gmail.com>.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-05-12 17:59:56 +02:00
Stefano Sabatini
8102d886be tiff: Prefer enum TiffCompr over int for TiffContext.compr. 
This is safer and helps debugging.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-05-12 17:37:08 +02:00
Stefano Sabatini
b437f5b055 tiff: add support for inverted FillOrder for uncompressed data 
Fix decoding of file b.tif, trac issue #168.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-05-11 13:55:44 +02:00