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26 Commits

Author SHA1 Message Date
Andreas Rheinhardt
b3df59a5ea avcodec/hnm4video: Mark decoder as init-threadsafe 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-05-02 02:57:55 +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
Andreas Rheinhardt
dff4012ab7 avcodec/hnm4video: Don't reimplement FFSWAP() 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-19 18:47:01 +02:00
Andreas Rheinhardt
cc83f36b9d avcodec/hnm4video: Don't return nonsense error messages 
The HNM 4 video decoder's init function claimed that an allocation
failed if the image dimensions are wrong. This is fixed in this commit:
The dimensions are checked before the allocations are attempted.
The check whether width * height is zero is redundant as
av_image_check_size() already checks for this; it has been removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-19 18:46:56 +02:00
Andreas Rheinhardt
042af30303 avcodec/hnm4video: Cleanup generically on init failure 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-19 18:46:53 +02:00
Michael Niedermayer
cd460f4da0 avcodec/hnm4video: Optimize postprocess_current_frame() 
Improves: Timeout (220sec -> 108sec)
Improves: 15570/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HNM4_VIDEO_fuzzer-5085482213441536

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-12 08:45:07 +02:00
Michael Niedermayer
9af8ce754b avcodec/hnm4video: Forward errors of decode_interframe_v4() 
Fixes: Timeout (108sec -> 160ms)
Fixes: 15570/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HNM4_VIDEO_fuzzer-5085482213441536

Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-03 20:32:20 +02:00
Marton Balint
4c501bafc0 avcodec/hnm4video: fix palette alpha 
Signed-off-by: Marton Balint <cus@passwd.hu>
 2018-04-30 21:50:12 +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
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Michael Niedermayer
ba1a19bc35 Merge commit '16158da9607f2f84232d3dd381406b2f2449ec74' 
* commit '16158da9607f2f84232d3dd381406b2f2449ec74':
  hnm4: Use av_image_check_size

See: e23b18321f
Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-25 12:19:08 +01:00
Luca Barbato
16158da960 hnm4: Use av_image_check_size 
As done for all the other codecs not calling it indirectly.

CC: libav-stable@libav.org
Bug-Id: CID 1135770 / CID 1135771
 2014-11-25 02:00:06 +00:00
Michael Niedermayer
57ed5a64fe hnm4: change width/height to int to fix hypothetical integer overflows 
CC: libav-stable@libav.org
Bug-Id: CID 1135770 / CID 1135771
 2014-11-25 02:00:06 +00:00
Michael Niedermayer
4d7d9a5782 avcodec/hnm4video: check offset before subtraction in decode_interframe_v4a() 
Fixes out of array read
Fixes: signal_sigsegv_1326a09_1752_cov_245452111_GRTH301.HNS
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-03 03:11:48 +01:00
Michael Niedermayer
e23b18321f avcodec/hnm4video: change width/height to int 
Fixes hypothetical integer overflows
Related to CID1135770 & CID1135771

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-10 23:50:08 +01:00
Michael Niedermayer
321b338762 avcodec/hnm4video: allocate frame only when theres a coded frame 
Fixes memleak
Fixes: asan_heap-oob_e76bdf_2224_MOTHOO.HNM

This patch also removes the setting of palette_has_changed,
which was set on a frame that was never returned

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-23 21:05:29 +01:00
Michael Niedermayer
ffe31c654d avcodec/hnm4video: check writeoffset in decode_interframe_v4a() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 23:52:08 +01:00
Michael Niedermayer
bd8d28e2d2 avcodec/hnm4video: check dimensions for validity 
Fixes out of array read
Fixes: asan_heap-oob_e76e18_1244_CASSE.HNM
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 23:52:08 +01:00
Michael Niedermayer
b33f3246e2 avcodec/hnm4video: fix missing newlines in error messages 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 22:31:47 +01:00
Michael Niedermayer
78446f0d9d avcodec/hnm4video: fix write offset checks in decode_interframe_v4() 
Fixes: asan_heap-oob_e76a51_1244_CASSE.HNM

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 22:31:46 +01:00
Michael Niedermayer
5a08ba5381 avcodec/hnm4video: check offset in decode_interframe_v4() more completely 
Fixes out of array reads
Fixes: signal_sigsegv_e74c1e_1092_BROCIME.HNM
Fixes: signal_sigsegv_e74e85_2620_PLAQUE0.HNM

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 22:12:27 +01:00
Michael Niedermayer
0398b7cbd3 avcodec/hnm4video: check intraframe size 
Fixes hypothetical integer overflow with HNM4_CHUNK_ID_IZ

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 17:02:00 +01:00
Michael Niedermayer
ba992711f7 avcodec/hnm4video: check that packetsize is at least 8 
Fixes integer overflow and assertion failure
Fixes: signal_sigabrt_7ffff7126425_1243_CASSE.HNM

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-22 17:02:00 +01:00
Paul B Mahol
315e3cf047 avcodec/hnm4video: remove redundant log message 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-11-07 14:04:21 +00:00
Michael Niedermayer
a2bfee36b7 Merge commit '9af7a8523a6bb517834ebed36093bdab11a8b38e' 
* commit '9af7a8523a6bb517834ebed36093bdab11a8b38e':
  HNM4/HNM4A demuxer & video decoder

Conflicts:
	Changelog
	doc/general.texi
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/avcodec.h
	libavcodec/version.h
	libavformat/Makefile
	libavformat/allformats.c
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-01 10:46:39 +01:00
David Kment
9af7a8523a HNM4/HNM4A demuxer & video decoder 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2013-10-31 17:45:46 +01:00