93045 Commits

Author SHA1 Message Date
Andreas Rheinhardt
cfb42ce415 avformat/smoothstreaming: Fix memleaks on errors
If an AVFormatContext could be allocated, but white-/blacklists couldn't
be copied, the AVFormatContext would leak as it was only accessible
through a local variable that goes out of scope when one goes to fail.

Furthermore, in case writing a header of a submuxer failed, the options
used for said call could leak.

Both of these memleaks have been fixed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit abbb466368c51285ca27d5e3959a16a9591e9a4c)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:25:11 +02:00
Andreas Rheinhardt
190e2cb02b avformat/matroskaenc: Check BlockAdditional size before use
Don't read a 64bit number before having checked that the data is at
least 8 bytes long.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6e9cc964293bf1e0cca6a52b2938a20d711e4146)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:24:10 +02:00
Andreas Rheinhardt
39c249d75e avformat/utils: Fix memleaks in avformat_open_input()
A demuxer might have allocated memory while reading the header. If
reading the header was successfull and an error happens before returning
(e.g. when queueing the attached pictures), the read_close function
would have never been called, so that all those allocations would leak.
This commit changes this.

Furthermore, there would be even more memleaks if the error level was
set to AV_EF_EXPLODE in case there is both metadata and id3v2 metadata.
This has been fixed, too.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit e2307f4ff197646a7feee0edbcdd2d3262932676)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:21:06 +02:00
Andreas Rheinhardt
2b35185006 avcodec/cavsdsp: Fix undefined left shifts of negative numbers
Affected the ffmpeg-filter_colorkey FATE-test (but only if the C version
of idct8_add is used and not e.g. the x86 SSE2 version).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

Fixes: left shift of negative value -107
Fixes: 20398/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CAVS_fuzzer-5725389278412800

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0f0f2ab0c3b3d04e904db97b07ae829c72c91778)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:18:20 +02:00
Andreas Rheinhardt
b9a667c00d avformat/mov: Don't leak MOVFragmentStreamInfo on error
Fixes Coverity issue #1441933.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 43f58f2354bfab3819e44c1a97b0af75cc091226)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:17:46 +02:00
Andreas Rheinhardt
7a13d99e6e avformat/mov: Free encryption data on error
Fixes memleak and Coverity issue #1439587.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3999c4b374c2f3786137bd7e820dd1555fc20d90)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:15:45 +02:00
Andreas Rheinhardt
9b605dcdde avformat/hevc: Fix potential leak in case of ff_hevc_annexb2mp4_buf failure
ff_hevc_annexb2mp4_buf() could indicate an error, yet leave cleaning
after itself to the caller, so that a caller could not simply return the
error, but had to free the buffer first.

(Given that all current callers have set filter_ps = 0, this error can
currently not be triggered.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 680cd59bb21c7bce92789ff885c018207b0b90bc)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:08:24 +02:00
Andreas Rheinhardt
31fa5fb84e avformat/matroskaenc: Check for reformatting errors
This is needed especially for AV1: If a reformatting error happens (e.g.
if the length field of an OBU contained in the current packet indicates
that said OBU extends beyond the current packet), the data pointer is
still NULL, yet the size is unchanged, so that writing the data leads
to a segmentation fault.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 58428bef4b2c053f47dce35157fb96833ba8efea)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:08:14 +02:00
Andreas Rheinhardt
d9e4783f06 avcodec/ra144enc: Fix invalid left shift of negative number
by replacing it with a multiplication. Said multiplication can't
overflow an int32_t because lpc_coefs is limited to 16 bit precision.

Fixes the FACE-test acodec-ra144 as well as part of #8217.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e3fb9af6f1353f30855eaa1cbd5befaf06e303b8)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:04:12 +02:00
Andreas Rheinhardt
68e67bb187 avcodec/adxenc: Avoid undefined left shift of negative numbers
Replace "((a << shift) + b) >> shift" by "a + (b >> shift)". This avoids
a left shift which also happens to trigger undefined behaviour in case "a"
is negative. This affected the FATE-tests acodec-adpcm-adx and
acodec-adpcm-adx-trellis; it also fixes ticket #8008.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 59a9d65e0d790821f88527a82569f56eb2f8a9be)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:03:43 +02:00
Andreas Rheinhardt
d620f2eeb4 avcodec/adpcm: Fix undefined left shifts of negative numbers
Affected the adpcm-afc, adpcm-ea-1, adpcm-ea-2, adpcm-ea-maxis-xa,
adpcm-thp and ea-cdata FATE-tests. Also fixes ticket #8487.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3ad8af51b7c0a968ac3fd62964780d4ff9136c5a)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:03:23 +02:00
Andreas Rheinhardt
84abf2ee32 avformat/segafilmenc: Fix undefined left shift of 1 by 31 places
by changing the type to unsigned.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8ae026d74f599b2d00b91798af1c1067a879007c)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:01:49 +02:00
Andreas Rheinhardt
02368962f5 avcodec/proresenc_anatoliy: Fix invalid left shift of negative number
This fixes ticket #7997 as well as the vsynth*-prores_# FATE-tests
(where * ranges over { 1, 2, 3, _lena } and # over { , _int, _444,
_444_int }).

(Given that prev_dc is in the range -0xC000..0x3FFF, no overflow can
happen upon multiplication with 2.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 198081efb7c7343349f0a7acc836f001c511e990)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:01:29 +02:00
Andreas Rheinhardt
e848b20ef0 avformat/wtvdec: Fix memleak when reading header fails
Fixes #8314.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 373c1c9b691fd4c6831b3a114a006b639304c2af)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 23:01:02 +02:00
Andreas Rheinhardt
57dca5213b avformat/fitsdec: Fix potential leak of string in AVBPrint
by freeing it a bit earlier.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bb20f3dd730689c3a99f7820cff8b74b06992fff)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:55:52 +02:00
Andreas Rheinhardt
88a19d6b4d avformat/matroskadec: Fix use-after-free when demuxing ProRes
ProRes in Matroska is supposed to not contain the first atom header
(containing a size field and the tag "icpf") and therefore the Matroska
demuxer has to recreate it; this involves an allocation and copy, of
course. Whether the old buffer (containing the data without the atom
header) needs to be freed or not depends upon whether it is what was
directly read (in which case it is owned by an AVBuffer) or whether it
has been allocated when reversing the track's content compression (e.g.
zlib compression) that Matroska supports.

So there are three pointers involved: The one pointing to the directly
read data (owned by the AVBuffer), the one pointing to the currently
valid data (which coincides with the former if no content compression
needed to be reverted) and the one pointing to the new data with the
first atom header. The check for whether to free the second of these is
simply whether the first two are different.

This works mostly, but there is a complication: Some muxers don't strip
the first atom header away and in this case, it is also not reinserted
and no new buffer is allocated; instead, the second and the third
pointers agree. In this case, one must never free the second buffer.
Yet it is currently done if the track is e.g. zlib compressed.
This commit fixes this.

This is a regression since b8e75a2a.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit af50f0a515d8096fece9776e2d3034fe990a1373)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:45:43 +02:00
Andreas Rheinhardt
901048ad96 avformat/matroskadec: Fix demuxing ProRes
The structure of a ProRes frame in mov/mp4 is that of a typical atom:
First a 32 bit BE size field, then a tag detailling the content. Said
size field includes the eight bytes of the atom header.

This header is actually redundant, as the size of the atom is already
known from the containing atom. It is therefore stripped away when muxed
into Matroska and so the Matroska demuxer has to recreate upon demuxing.
But it did not account for the fact that the size field includes the
size of the header and this can lead to problems when a decoder uses the
in-band size field.

Fixes ticket #8210.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 581419ea39de6619c3389b8d10ac2cbe212c62a0)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:44:41 +02:00
Andreas Rheinhardt
26ceb54a28 avformat/av1: Fix leak of dynamic buffer in case of parsing failure
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 27c6c925344e00c1a72ba8bb2b5cdd32cb1a2655)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:34:44 +02:00
Andreas Rheinhardt
d2b434001f fftools/ffmpeg: Free swresample dictionary during cleanup
Freeing this was forgotten in ad899522.

Fixes #8315 and #8316.

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>
(cherry picked from commit 6f2a3958cfac135c60b509a61a4fd39432d8f9a9)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:33:24 +02:00
Andreas Rheinhardt
63383aaf53 avfilter/vf_xbr: Fix left shift of negative number
Affected every usage of vf_xbr, e.g. the FATE-tests filter-2xbr,
filter-3xbr, filter-4xbr.

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>
(cherry picked from commit 4294dc3589a3ab973b10a85b576ff15e3ffb000d)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:31:20 +02:00
Andreas Rheinhardt
7cb41481ea avfilter/vf_hqx: Fix undefined left shifts of negative numbers
Affected every usage of this filter; in particular, it affected the
FATE-tests filter-2xbr, filter-3xbr and filter-4xbr.

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>
(cherry picked from commit fa211943265ca991548a4cc2f85a6df9cedcd092)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:30:54 +02:00
Andreas Rheinhardt
02d9561eab avcodec/jpeg2000dwt: Fix undefined shifts of negative numbers
Affected the vsynth*-jpeg2000 and the vsynth*-jpeg2000-97 FATE tests
(where * ranges over { 1, 2, 3, _lena }) as well as ticket #7983.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5cf593adcd79a7c9502dc2725e1f0681ada36aef)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:30:42 +02:00
Andreas Rheinhardt
ceed3603e1 avcodec/ituh263dec: Fix undefined left shift of negative number
Fixes ticket #8160.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 324487b596fbcda0a5753c7bb7b2e96e9d512479)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:30:16 +02:00
Andreas Rheinhardt
ab3b008dad avcodec/dnxhdenc: Fix undefined left shifts of negative numbers
Affected 61 FATE-tests: 60 vsynth tests and lavf-mxf_opatom.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b7f156e8cbdf3256c7860c62ebb7a6c3002cbb03)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:29:36 +02:00
Andreas Rheinhardt
1101cf30ec swscale/utils: Fix invalid left shifts of negative numbers
Affected the FATE-tests vsynth_lena-dv-411, vsynth1-dv-411,
vsynth2-dv-411 and hevc-paramchange-yuv420p.yuv420p10.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e2646e23be69bdef1e41d4decee1a4298701b8d1)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:29:20 +02:00
Andreas Rheinhardt
a79bfc2222 swscale/x86/swscale: Fix undefined left shifts of negative numbers
This affected many FATE-tests: The number of failing tests went down
from 663 to 344. (Both numbers exclude tests that failed because of
unaligned accesses in code that is inside #if HAVE_FAST_UNALIGNED.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 736c7c20e7819811dc59f43490563789b192eb6e)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:28:47 +02:00
Andreas Rheinhardt
438773db51 avcodec/exr: Fix undefined left shifts of negative numbers
Affected the FATE-tests exr-rgb-scanline-pxr24-half-uint32-13x9 and
exr-rgb-scanline-pxr24-uint32.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8b0f949906116c40b6f1e55a1bce4447ada3219c)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:28:15 +02:00
Andreas Rheinhardt
62df14c7fe avformat/movenc: Fix undefined shift
Fixes the movenc FATE-test.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 646799b42fd59ee79920e472795bf881b78bb5ce)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:27:58 +02:00
Andreas Rheinhardt
2b9ddde1d0 avcodec/pcm: Fix undefined shifts
Fixes the acodec-pcm-u16[lb]e FATE-tests.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 69473bec6f38fefc9a433d95f8e00de101299592)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:26:42 +02:00
Andreas Rheinhardt
3497fd2dd7 avcodec/wavpackenc: Fix undefined shifts
Fixes ticket #8161 and the acodec-wavpack FATE-test.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 84974c6fb542cf019904016c2165d9a62db9f312)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:26:04 +02:00
Andreas Rheinhardt
5dc4b3209f avutil/encryption_info: Don't pass NULL to memcpy
The pointer arguments to memcpy (and several other functions of the
C standard library) are not allowed to be NULL, not even when the number
of bytes to copy is zero. An AVEncryptionInitInfo's data pointer is
explicitly allowed to be NULL and yet av_encryption_init_info_add_side_data
unconditionally used it as a source pointer to copy from. This commit changes
this so that copying is only done if the number of bytes to copy is > 0.

Fixes ticket #8141 as well as a part of ticket #8150.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e6018fda14d7cfe2c890fb336c9264c4ea0b6c5c)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:25:36 +02:00
Andreas Rheinhardt
9083b1054a avcodec/ac3enc: Fix invalid shift
Fixes the FATE-tests unknown_layout-ac3, ac3-fixed-encode, ac3-encode
and eac3-encode. It furthermore fixes the ac3-encoder bugs mentioned in
tickets #7994, #8144 and #8159.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2f289ec914cc7e8133858d4f9e8d91dab685ae44)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:25:21 +02:00
Andreas Rheinhardt
0284b72c8a avcodec/tdsc: Fix undefined shifts
Fixes the tdsc FATE-test.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 86bef10e7aee338a4df60c57904c16e33509e76e)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:20:51 +02:00
Andreas Rheinhardt
9744ed6e52 fftools/ffmpeg_opt: Fix signed integer overflow
Fixes ticket #8154.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2b1fcba8ddcb7d29299ea28403fb597640a7288b)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:19:39 +02:00
Andreas Rheinhardt
8ee6b52db0 avformat/mov: Fix memleak
When the mov/mp4 demuxer encounters an error during decrypting a packet,
it returns the error, yet doesn't free the packet, so that the packet
leaks. This has been fixed in this commit.

Fixes the memleaks from ticket #8150.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 34bd293b014efc816bd7aab068d7f9e4a6d3011a)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:19:06 +02:00
Andreas Rheinhardt
9a3edef421 avcodec/ttaenc: Fix undefined shift
ttaenc contained (1 << unary) - 1 as an argument for a function
expecting an unsigned int. unary can be as big as 31 in this case.
The type of the shift and the whole expression is int, because 1 fits
into an integer, so that the behaviour is undefined if unary == 31
as the result of the shift can't be represented in an int §. Subtraction
by 1 (which makes the result of the whole expression representable in
an int) doesn't change that this is undefined (it usually leads to
signed integer overflow which is undefined, too).

The solution is simple: Make 1 unsigned to change the type of the
whole expression to unsigned int (as the function expects anyway).

Fixes ticket #8153.

§: This of course presupposes the common int range of -2^31..2^31-1

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>
(cherry picked from commit 3ab488a5407f833ecc66e8fa4c537dc4852db720)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:18:52 +02:00
Andreas Rheinhardt
458d0dea90 lavf/webm_chunk: Fix NULL dereference
The earlier version of the webm_chunk muxer had several bugs:

1. If the first packet of an audio stream didn't have a PTS of zero,
then no chunk will be started before a packet is delivered to the
underlying Matroska/WebM muxer, i.e. the AVFormatContext used to write
these packets had a NULL as AVIOContext for output. This is behind the
crash in ticket #5752.

2. If an error happens during writing a packet, the underlyimg
Matroska/WebM muxer context is freed. This leads to a use-after-free
coupled with a double-free in webm_chunk_write_trailer (which supposes
that the underlying AVFormatContext is still valid).

3. Even when no error occurs at all, webm_chunk_write_trailer is still
buggy: After the underlying Matroska/WebM muxer has written its trailer,
ending the chunk implicitly flushes it again which is illegal at this
point.

These bugs have been fixed.

Fixes #5752.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 8c6ee7626bcce7c270360f33b60dc7ef99939fc3)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 22:10:02 +02:00
Andreas Rheinhardt
8d90a8cb37 avcodec/cbs_av1: Fix writing uvlc numbers >= INT_MAX
Fixes: assertion failure
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 23264/clusterfuzz-testcase-minimized-ffmpeg_BSF_AV1_METADATA_fuzzer-6308429248593920

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 6f06c17a55137855c67ba4a7b6778ca34ddbbe6b)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 17:16:06 +02:00
Andreas Rheinhardt
0df1210631 avcodec/bitstream: Don't check for undefined behaviour after it happened
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 5e196dac22cc510db104922f99626a03b453ef4a)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-07-01 16:59:01 +02:00
Andreas Rheinhardt
dc84430172 libavcodec/libvpxenc: Don't free user-provided AVPacket
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 26b45096906097a73ba587bf3b98dada4e795224)
2020-05-23 20:34:51 +02:00
Andreas Rheinhardt
68f5905f3c libavcodec/libmp3lame: Don't free user-provided AVPacket
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 7e6941e185649409f44fb5aa31207bd7b00d23cd)
2020-05-23 20:34:51 +02:00
Andreas Rheinhardt
8efc398218 avcodec/libopusenc: Don't free user-provided AVPacket
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit b803993b6d99423c8c1e01e7e206e3916a98d5d5)
2020-05-23 20:34:51 +02:00
James Almer
6376b6b00b avcodec/cbs_h265: fix writing extension_data bits
We only care about the right most bit.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 38d1815cc65dd447de80760895ee008cfc9a0091)
2020-05-03 18:50:22 -03:00
Andreas Rheinhardt
41b03de299 avformat/matroskadec: Fix default value of BlockAddID
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit dbc50f8a935043243232b2e01f3c012ab6d49928)
2020-04-03 21:19:05 +02:00
Andreas Rheinhardt
de3d708dbf avformat/dashdec: Don't allocate and leak strings that are never used
Since commit e134c203 strdups of several elements of a manifest are kept
in the DASHContext; but said commit completely forgot to free these
strings again (with xmlFree()). Given that these strings are never used
at all, this commit closes this leak by reverting said commit.

This reverts commit e134c20374ee3cbc6d04885d306b02c9871683a2.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 3c138e5ceb487490f88015b1694ce34c1393736c)
2020-03-30 08:07:26 +02:00
Carl Eugen Hoyos
4521700f29 lavf/hlsenc: Do not mix declarations and code.
Fixes the following warnings:
libavformat/hlsenc.c: In function 'hls_write_trailer':
libavformat/hlsenc.c:2364:17: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
                 uint8_t *buffer = NULL;
                 ^~~~~~~
libavformat/hlsenc.c:2372:17: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
                 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
                 ^~~
libavformat/hlsenc.c:2379:13: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
             int range_length = 0;
             ^~~

(cherry picked from commit fc94e9704e056a2dc85745ffec685ffb6fcd142e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
n4.1.5
2020-01-07 10:53:38 +01:00
Michael Niedermayer
2f54cd9548 Update for FFmpeg 4.1.5 2020-01-06 16:38:20 +01:00
Michael Niedermayer
4062a67d9d Changelog: Fix formating for 4.1.4 2020-01-06 16:37:21 +01:00
Fei Wang
c96a52b714 avcodec/cbs_av1: avoid reading trailing bits when obu type is OBU_TILE_LIST
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 1ea44178f5fff7eb600026a09a0ce7d477ed0240)
2020-01-06 12:14:02 -03:00
James Almer
3413eb6091 avcodec/av1_parser: skip frames with spatial_id > 0
This fixes marking keyframes in svc samples.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 5985ca0436f26483f37259357bf34bbf743252ed)
2020-01-06 12:10:44 -03:00