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167 Commits

Author SHA1 Message Date
Michael Niedermayer
3809467d4d avcodec/iff: limit written bytes to twice the output array size in decode_delta_l() 
Fixes: Timeout
Fixes: 39436/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-6624915520880640

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-11-29 17:15:07 +01:00
Michael Niedermayer
216eb60b85 avcodec/iff: Only write palette to plane 1 if its PAL8 
Fixes: null pointer passed as argument 1, which is declared to never be null
Fixes: 33791/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5107575256383488.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-06-18 18:58:25 +02:00
Andreas Rheinhardt
abe61c349d avcodec/iff: Mark decoder as init-threadsafe 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-05-02 02:51:52 +02:00
Andreas Rheinhardt
9ae6f5ae92 avcodec/iff: Reorder checks to avoid unnecessary alloc+free 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-05-02 02:50:34 +02:00
Andreas Rheinhardt
a247ac640d avcodec: Constify AVCodecs 
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2021-04-27 10:43:15 -03:00
Michael Niedermayer
51225dee0a avcodec/iff: Fix off by x error 
Fixes: out of array access
Fixes: 23245/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5723121327013888.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-06-14 18:20:37 +02:00
Michael Niedermayer
a035fd88ae avcodec/iff: Test video_size being non zero 
Fixes: Out of array access
Fixes: 20659/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5658548592967680
Fixes: 20659/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5723561177382912

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-05-12 21:39:13 +02:00
Michael Niedermayer
7a92147f87 avcodec/iff: Fix several integer overflows 
Fixes: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself
Fixes: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int32_t' (aka 'int')
Fixes: 20492/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5764066459254784

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-05-11 00:45:09 +02:00
Michael Niedermayer
b4a33387cb avcodec/iff: Check length before memcpy() in decode_deep_rle32() 
Fixes: out of array read
Fixes: 20796/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5111364702175232.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-04-22 22:57:38 +02:00
Michael Niedermayer
bc41a29a5a avcodec/iff: Fix invalid pointer intermediates in decode_deep_rle32() 
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-04-22 22:57:38 +02:00
Michael Niedermayer
8652f4e7a1 avcodec/iff: Over-allocate ham_palbuf for HAM6 IFF-PBM 
IFF-PBM-HAM6 can read out of array without this overallocation
Fixes: Out of array read
Fixes: 19752/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5675331403120640

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-30 19:56:25 +01:00
Michael Niedermayer
e7af64178a avcodec/iff: Check input space before loop in decode_delta_d() 
Fixes: Timeout (114sec ->108ms)
Fixes: 19290/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5740598116220928

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-01-18 18:35:57 +01:00
Michael Niedermayer
f1b97f62f8 avcodec/iff: Check that video_size is large enough for the read parameters 
video is allocated before parameters like bpp are read.

Fixes: out of array access
Fixes: 19084/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5718556033679360
Fixes: 19465/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5759908398235648

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-12-28 11:20:48 +01:00
Michael Niedermayer
185f441ba2 avcodec/iff: Skip overflowing runs in decode_delta_d() 
Fixes: Timeout (107sec - 75ms>
Fixes: 18812/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-6295585225441280

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-12-15 01:01:22 +01:00
Michael Niedermayer
a1f8b36cc4 avcodec/iff: Move index use after check in decodeplane8() 
Fixes: index 9 out of bounds for type 'const uint64_t [8][256]'
Fixes: 18409/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5767030560522240
Fixes: 18720/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5651995784642560

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-11-20 15:50:15 +01:00
Michael Niedermayer
32b3c8ce7d avcodec/iff: Check available space before entering loop in decode_long_vertical_delta2() / decode_long_vertical_delta() 
Fixes: Timeout (31sec -> 41ms)
Fixes: 18380/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5645210121404416

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-11-09 17:26:28 +01:00
Michael Niedermayer
dfa5d1a366 avcodec/iff: Check for overlap in cmap_read_palette() 
Fixes: undefined memcpy() use
Fixes: 16302/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5678750575886336

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-09-05 19:45:53 +02:00
Andreas Rheinhardt
f12e662a3d libavcodec/iff: Use unsigned to avoid undefined behaviour 
The initialization of the uint32_t plane32_lut matrix uses left shifts
of the form 1 << plane; plane can be as big as 31 which means that this
is undefined behaviour as 1 will be simply an int. So make it unsigned
to avoid this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-05 17:54:24 +02:00
Michael Niedermayer
84669b1872 avcodec/iff: Add "else" to make code look prettier 
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-07-14 22:17:43 +02:00
Michael Niedermayer
f76d7352e0 avcodec/iff: Check ham vs bpp 
This checks the ham value much stricter and avoids hitting cases which cannot be reached
with data from the libavformat demuxer.

Fixes: out of array access
Fixes: 15320/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5080476840099840
Fixes: 15423/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5630765833912320

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-07-08 09:00:21 +02:00
Michael Niedermayer
0f9789c8e3 avcodec/iff: finetune the palette size check in the mask case 
Fixes: out of array access
Fixes: 15381/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5668057826983936

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-06-23 10:51:16 +02:00
Michael Niedermayer
92e8db532c avcodec/iff: Fix mask_buf / mask_palbuf leak 
Fixes: 15372/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5708881759567872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-06-23 10:46:49 +02:00
Michael Niedermayer
9a6503f496 avcodec/iff: Cleanup on init failure 
Fixes: memleak
Fixes: 2272/clusterfuzz-testcase-minimized-5059103858622464

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-18 14:05:57 +02:00
Clément Bœsch
549045254c Fix all -Wformat warnings raised by DJGPP 2017-03-29 14:49:29 +02:00
Paul B Mahol
5979fb0b1e avcodec/iff: support for byterun1 ACBM compression 
This is apparently same as no compression.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2017-02-12 13:28:25 +01:00
Paul B Mahol
49633f9f74 avcodec/iff: add support for vertical word compression in ILBM 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2017-01-06 21:45:52 +01:00
Paul B Mahol
0ea03dbbf9 avcodec/iff: remove palette swapping for anim 
It appears it is wrong.
 2016-08-15 13:21:47 +02:00
Michael Niedermayer
a2550e7d2e avcodec/iff: Check that there are enough bytes in dgb before reading 
Fixes CID1361959

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-07-11 14:48:57 +02:00
Michael Niedermayer
9585c50942 avcodec/iff: remove useless () 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-07-11 14:44:27 +02:00
Michael Niedermayer
55ef890b29 avcodec/iff: Print error for cols/bpp/bytes being bad in decode_delta_j() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-07-06 11:20:41 +02:00
Michael Niedermayer
fcdbbbd85a avcodec/iff: decode_delta_j: Check that the number of bytes that will be read are available 
This should avoid long loops
related to CID1361958

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-07-06 11:19:41 +02:00
Clément Bœsch
9204a84998 Merge commit '5c31eaa9998b2185e0aa04d11adff128498dc14a' 
* commit '5c31eaa9998b2185e0aa04d11adff128498dc14a':
  Remove unnecessary get_bits.h #includes and add missing headers where needed.

Merged-by: Clément Bœsch <clement@stupeflix.com>
 2016-06-21 15:42:49 +02:00
Michael Niedermayer
c3ad63c6a3 avcodec/iff: Fix bytestream advance 
Fixes Ticket5585

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-06-12 20:26:32 +02:00
Piotr Bandurski
854c405dab avcodec/iff: mention RGB8/RGBN decoder 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-05-22 23:04:37 +02:00
Paul B Mahol
a5c5ae5ed8 avcodec/iff: add support for ANBR files 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-19 16:52:30 +02:00
Paul B Mahol
810a8ba5b6 avcodec/iff: add forgotten checks for end of input buffer 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-18 12:46:43 +02:00
Paul B Mahol
eef2f64294 avcodec/iff: scala anim32 & anim16 decompression 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-18 12:32:41 +02:00
Paul B Mahol
95b20ad7b2 avcodec/iff: fix artifacts with uncompressed ham ANIMs 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-17 11:02:44 +02:00
Paul B Mahol
72e33eec3a avcodec/iff: add support for ANIMs with keyframes and concatenated ANIMs 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-16 22:39:03 +02:00
Paul B Mahol
8767470fb5 avcodec/iff: check if there is enough bytes left 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-16 15:39:28 +02:00
Paul B Mahol
5350e0fc97 avcodec/iff: rewrite out of bounds checking in writer 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-15 16:35:47 +02:00
Paul B Mahol
51a1c1c6ac avcodec/iff: check for end of buffer in input for delta_l decompression 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-14 14:29:59 +02:00
Paul B Mahol
01ead2a639 avcodec/iff: implement 3rd delta ANIM decompression 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-13 23:28:19 +02:00
Paul B Mahol
17ea1cd559 avcodec/iff: change delta l offset to uint32_t 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-13 14:02:59 +02:00
Paul B Mahol
cb928fc448 lavc: add IFF ANIM decoder 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-13 00:24:48 +02:00
Alexandra Hájková
5c31eaa999 Remove unnecessary get_bits.h #includes and add missing headers where needed. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 15:14:14 +02:00
Andreas Cadhalpun
ec0275843d avcodec: remove leftover iff_byterun1 decoder 
It was merged with the iff_ilbm decoder in commit
929a24efff.

Define AV_CODEC_ID_IFF_BYTERUN1 as AV_CODEC_ID_IFF_ILBM for API
compatibility.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-10-12 00:21:13 +02:00
Michael Niedermayer
29d147c94d Merge commit '059a934806d61f7af9ab3fd9f74994b838ea5eba' 
* commit '059a934806d61f7af9ab3fd9f74994b838ea5eba':
  lavc: Consistently prefix input buffer defines

Conflicts:
	doc/examples/decoding_encoding.c
	libavcodec/4xm.c
	libavcodec/aac_adtstoasc_bsf.c
	libavcodec/aacdec.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.h
	libavcodec/asvenc.c
	libavcodec/avcodec.h
	libavcodec/avpacket.c
	libavcodec/dvdec.c
	libavcodec/ffv1enc.c
	libavcodec/g2meet.c
	libavcodec/gif.c
	libavcodec/h264.c
	libavcodec/h264_mp4toannexb_bsf.c
	libavcodec/huffyuvdec.c
	libavcodec/huffyuvenc.c
	libavcodec/jpeglsenc.c
	libavcodec/libxvid.c
	libavcodec/mdec.c
	libavcodec/motionpixels.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/noise_bsf.c
	libavcodec/nuv.c
	libavcodec/nvenc.c
	libavcodec/options.c
	libavcodec/parser.c
	libavcodec/pngenc.c
	libavcodec/proresenc_kostya.c
	libavcodec/qsvdec.c
	libavcodec/svq1enc.c
	libavcodec/tiffenc.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavcodec/utvideoenc.c
	libavcodec/vc1dec.c
	libavcodec/wmalosslessdec.c
	libavformat/adxdec.c
	libavformat/aiffdec.c
	libavformat/apc.c
	libavformat/apetag.c
	libavformat/avidec.c
	libavformat/bink.c
	libavformat/cafdec.c
	libavformat/flvdec.c
	libavformat/id3v2.c
	libavformat/isom.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/mpc.c
	libavformat/mpc8.c
	libavformat/mpegts.c
	libavformat/mvi.c
	libavformat/mxfdec.c
	libavformat/mxg.c
	libavformat/nutdec.c
	libavformat/oggdec.c
	libavformat/oggparsecelt.c
	libavformat/oggparseflac.c
	libavformat/oggparseopus.c
	libavformat/oggparsespeex.c
	libavformat/omadec.c
	libavformat/rawdec.c
	libavformat/riffdec.c
	libavformat/rl2.c
	libavformat/rmdec.c
	libavformat/rtpdec_latm.c
	libavformat/rtpdec_mpeg4.c
	libavformat/rtpdec_qdm2.c
	libavformat/rtpdec_svq3.c
	libavformat/sierravmd.c
	libavformat/smacker.c
	libavformat/smush.c
	libavformat/spdifenc.c
	libavformat/takdec.c
	libavformat/tta.c
	libavformat/utils.c
	libavformat/vqf.c
	libavformat/westwood_vqa.c
	libavformat/xmv.c
	libavformat/xwma.c
	libavformat/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 23:15:19 +02:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de6021965db86c25a732d78689bd6bb0' 
* commit 'def97856de6021965db86c25a732d78689bd6bb0':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:50:18 +02:00
Vittorio Giovara
059a934806 lavc: Consistently prefix input buffer defines 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:59 +01:00