Commit Graph

21 Commits

Author SHA1 Message Date
Andreas Rheinhardt
790f793844 avutil/common: Don't auto-include mem.h
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00
Michael Niedermayer
af91b1b366
tools/target_dem_fuzzer: add libavformat/demux.h
needed for FFInputFormat

Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-03-19 04:10:48 +01:00
Andreas Rheinhardt
b800327f4c avformat/avformat: Add FFInputFormat, hide internals of AVInputFormat
This commit does for AVInputFormat what commit
59c9dc82f4 did for AVOutputFormat:
It adds a new type FFInputFormat, moves all the internals
of AVInputFormat to it and adds a now reduced AVInputFormat
as first member.

This does not affect/improve extensibility of both public
or private fields for demuxers (it is still a mess due to lavd).

This is possible since 50f34172e0
(which removed the last usage of an internal field of AVInputFormat
in fftools).

(Hint: tools/probetest.c accesses the internals of FFInputFormat
as well, but given that it is a testing tool this is not considered
a problem.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-07 08:53:31 -03:00
Michael Niedermayer
c900f2e42c tools/target_dem_fuzzer: Check fmt before dereferencing
Fixes: NULL pointer dereference
Fixes: 44884/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4656748688965632

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2022-02-25 22:23:03 +01:00
Michael Niedermayer
1372b30db2 tools/target_dem_fuzzer: Force interrupt for HLS
Fixes: Timeout
Fixes: 41580/clusterfuzz-testcase-minimized-ffmpeg_dem_HLS_fuzzer-5059099224571904

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2022-02-19 13:27:02 +01:00
Michael Niedermayer
cd4ce3b862 tools/target_dem_fuzzer: Test interrupt callback
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2022-02-19 13:27:02 +01:00
Michael Niedermayer
6055b93379 tools/target_dem_fuzzer: Fix packet leak
Fixes: 32121/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-4512973109460992

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-04-01 10:10:21 +02:00
James Almer
64f092eb5e tools/target_dem_fuzzer: use av_packet_alloc() to allocate packets
Signed-off-by: James Almer <jamrial@gmail.com>
2021-03-17 15:19:37 -03:00
Michael Niedermayer
58c7d4a3e3 tools/target_dem_fuzzer.c: Decrease maxblocks
Fixes: Timeout
Fixes: 28606/clusterfuzz-testcase-minimized-ffmpeg_dem_FRM_fuzzer-5123311424110592
Fixes: 28796/clusterfuzz-testcase-minimized-ffmpeg_dem_R3D_fuzzer-5945803411685376
Fixes: 28821/clusterfuzz-testcase-minimized-ffmpeg_dem_BRSTM_fuzzer-6044239834251264
Fixes: 28841/clusterfuzz-testcase-minimized-ffmpeg_dem_SIFF_fuzzer-5485368388485120
Fixes: 28862/clusterfuzz-testcase-minimized-ffmpeg_dem_AST_fuzzer-5081306790756352

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2021-01-05 02:00:05 +01:00
Michael Niedermayer
f58d0d5bec tools/target_dem_fuzzer: remove unused label
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-12-19 20:07:56 +01:00
James Almer
40dfb4328d tools/target_dem_fuzzer: use avio_context_free() to free the fuzzer's AVIOContext
The doxy for avio_alloc_context() states it must be used for this.

Signed-off-by: James Almer <jamrial@gmail.com>
2020-11-20 12:43:51 -03:00
Michael Niedermayer
8fbcc546b8 tools/target_dem_fuzzer: Consider it an EIO when reading position wraps around 64bit
Fixes: signed integer overflow: 9223372036854775807 + 564 cannot be represented in type 'long'
Fixes: 26494/clusterfuzz-testcase-minimized-ffmpeg_dem_VOC_fuzzer-576754158849228
Fixes: 26549/clusterfuzz-testcase-minimized-ffmpeg_dem_AVS_fuzzer-4844306424397824
FIxes: 26875/clusterfuzz-testcase-minimized-ffmpeg_dem_C93_fuzzer-5996226782429184

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-11-07 20:50:33 +01:00
Michael Niedermayer
6e64d89410 tools/target_dem_fuzzer: Limit max blocks
With a IO block size of 1 byte potentially megabytes are quite slow to read, thus
limit the number

Fixes: 26511/clusterfuzz-testcase-minimized-ffmpeg_dem_NUV_fuzzer-5679249073373184
Fixes: 26517/clusterfuzz-testcase-minimized-ffmpeg_dem_XMV_fuzzer-6316634501021696
Fixes: 26518/clusterfuzz-testcase-minimized-ffmpeg_dem_WSVQA_fuzzer-485568285324083
Fixes: 26525/clusterfuzz-testcase-minimized-ffmpeg_dem_MSNWC_TCP_fuzzer-5121987011411968
Fixes: 26538/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-5441800598454272
Fixes: OOM
Fixes: Timeout

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-10-24 22:38:55 +02:00
James Almer
a8a1a58af3 tools/target_dem_fuzzer: switch to the iterate API
Signed-off-by: James Almer <jamrial@gmail.com>
2020-10-19 11:54:46 -03:00
Michael Niedermayer
af701196ec tools/target_dem_fuzzer: Set format independent of c
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-10-16 14:56:24 +02:00
Michael Niedermayer
d40679d89c Add support for building fuzzer tools for an individual demuxer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-10-12 21:01:48 +02:00
Michael Niedermayer
e3af2a0756 tools:target_dem_fuzzer: Split into a fuzzer fuzzing at the protocol level and one fuzzing a fixed demuxer input
This should improve coverage and should improve the efficiency of seed files

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-09-13 10:40:02 +02:00
Michael Niedermayer
d3747f4431 tools/target_dem_fuzzer: Use file extensions listed in input formats
This should make it easier for the fuzzer to fuzz formats being detected only by
file extension and thus increase coverage

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-06-11 13:49:54 +02:00
Michael Niedermayer
3e651eeac4 tools/target_dem_fuzzer: Implement AVSEEK_SIZE
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-06-08 12:27:18 +02:00
Michael Niedermayer
ed4c6ce750 tools/target_dem_fuzzer: ignore avformat_find_stream_info() failure
Such a failure should not be fatal and its worth testing this path too

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-07-19 11:27:55 +02:00
Michael Niedermayer
710b7ec071 tools: Add fuzzer for demuxers
This is based on target_dec_fuzzer

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-05-31 22:44:30 +02:00