webrtc uses a int32_t like the existing code in ilbcdec
Fixes: signed integer overflow: 2080245063 + 257939661 cannot be represented in type 'int' Fixes: 11037/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ILBC_fuzzer-5682976612941824 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Jan Ekström [Sat, 15 Dec 2018 18:50:41 +0000 (20:50 +0200)]
avformat/mpegts: unset DTS/PTS for subtitle PES packets if PCR not available
Fixes issues when a subtitle packet is received before PCR for the
program has been received, leading to wildly jumping timestamps
on the lavf client side as well as in the re-ordering logic.
This usually happens in case of multiplexes where the PCR of a
program is not taken into account with subtitle tracks' DTS/PTS.
Mark Thompson [Sun, 2 Dec 2018 20:49:24 +0000 (20:49 +0000)]
cbs_av1: Fix reading of overlong uvlc codes
The specification allows 2^32-1 to be encoded as any number of zeroes
greater than 31, followed by a one. This previously failed because the
trace code would overflow the array containing the string representation
of the bits if there were more than 63 zeroes. Fix that by splitting the
trace output into batches, and at the same time move it out of the default
path.
(While this seems likely to be a specification error, libaom does support
it so we probably should as well.)
From a test case by keval shah <skeval65@gmail.com>.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
postproc/postprocess_template: Avoid using %4 for the threshold compare
This avoids problems if %4 is the stack pointer
the constraints do not allow %4 to be the stack pointer but gcc 9 may
no longer support specifying such constraints
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Carl Eugen Hoyos [Mon, 17 Dec 2018 01:36:26 +0000 (02:36 +0100)]
lavc/opus_rc: Cast a const pointer to uint8_t *.
Silences a warning with clang on arm:
libavcodec/opus_rc.c:170:17: warning: passing 'const uint8_t *' (aka 'const unsigned char *') to parameter of type 'void *' discards qualifiers
Mohammad Izadi [Fri, 21 Dec 2018 16:45:48 +0000 (17:45 +0100)]
Add HDR dynamic metadata struct (for SMPTE 2094-40) to libavutil
The dynamic metadata contains data for color volume transform -
application 4 of SMPTE 2094-40:2016 standard. The data comes from
HEVC in the SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35.
commit https://aomedia.googlesource.com/aom/+/4667aa1a373566e9c124afcd58c71731ab0d7377
changed parts of the code that broke compilation of libavcodec/libaomenc.c
Zhong Li [Wed, 12 Dec 2018 07:03:21 +0000 (15:03 +0800)]
lavc/qsv_hevc: correct QSV HEVC default plugin on Windows
1. Old logic meaned: everywhere, except Windows, ffmpeg has to use HW
acceleration, but on Windows ffmpeg has to use (unavailable) software
HEVC by default
2. Software HEVC is available only if you provide corresponding
software MediaSDK library, which isn't provided with ffmpeg. More
information could be found in
https://github.com/Intel-Media-SDK/MediaSDK/blob/master/doc/samples/readme-encode_linux.pdf
3. HW HEVC decoding/encoding are available on Windows in the driver by default
Note: Default case should be the most common case but this change still has potential risk
on windows if HW path is not supported(or doesn't work as expection).
(See the historical disscution: https://lists.libav.org/pipermail/libav-devel/2016-November/080419.html).
In such case, two options suggested:
1. Use the option "-load_plugin hevc_sw" to switch SW path manually.
2. Or report bug to Intel windows driver if your GPU can support HEVC HW codec.
(HEVC decoding is supported since Braswell, and encoding supported since Skylake)
Patch started by Landgraph. Add similar change for hevc decoder and bump a new version.
Reviewed-by: Mark Thompson <sw@jkqxz.net> Reviewed-by: Maxym Dmytrychenko <maxim.d33@gmail.com> Signed-off-by: Landgraph <me@landgraph.ru> Signed-off-by: Zhong Li <zhong.li@intel.com>
Rodger Combs [Mon, 5 Nov 2018 16:26:24 +0000 (10:26 -0600)]
lavf/isom: add Dolby Vision sample entry codes for HEVC and H.264
These are registered identifiers at the MPEG-4 RA, which are
defined as to be utilized for Dolby Vision AVC/HEVC streams that
are not correctly presentable by standards-compliant AVC/HEVC players.
According to the Dolby Vision specification for ISOBMFF, these sample
entry codes are specified to have the standard AVC or HEVC decoder
configuration box in addition to the Dolby custom DOVIConfigurationBox.
This is what enables us to decode the streams without custom parsing.
For correct presentation information from the DOVIConfigurationBox
is required (YCbCr or modified ICtCP, SDR or HDR, base or enhancement
layer).
avformat/dashenc: Added support for Low-latency HLS(Experimental)
Apple doesn't have an official spec for LHLS. Meanwhile hls.js player folks are
trying to standardize a open LHLS spec. The draft spec is available in https://github.com/video-dev/hlsjs-rfcs/blob/lhls-spec/proposals/0001-lhls.md
This option will also try to comply with the above open spec, till Apple's spec officially supports it.
Applicable only when @var{streaming} and @var{hls_playlist} options are enabled.
avcodec/rasc: Check that the number of moves is less than or equal the number of pixels
Fixes: OOM Fixes: 10307/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RASC_fuzzer-5393974559244288 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
avcodec/vp7: Check for end of input in vp78_decode_mv_mb_modes()
Fixes: Timeout Fixes: 10313/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VP7_fuzzer-5637719389110272 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>
chcunningham [Thu, 13 Dec 2018 21:58:40 +0000 (13:58 -0800)]
lavf/mov: ensure only one tkhd per trak
Chromium fuzzing produced a whacky file with extra tkhds. This caused
an AVStream that was already in use to be corrupted by assigning it a
new id, which blows up later in mov_read_trun because the
MOVFragmentStreamInfo.index_entry now points OOB.
Reviewed-by: Baptiste Coudurier <baptiste.coudurier@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Andriy Gelman [Thu, 13 Dec 2018 04:57:35 +0000 (23:57 -0500)]
avcodec/mpeg: Initialize quarter_sample parameter from previous thread.
Fixes #7410.
The value of sub-pixel precision for me/mc can change during an Intra frame. In multi-threaded decoding this change is not propagated to other frame threads causing decoding artifacts. This patch initializes the sub-pixel precision parameter from previous thread, which fixes the issue.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
projects / ffmpeg / log