Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7fc9ba2fd98e_82_02785736.mxf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The header parser uses forward and backward parsing, making the
bulletproof prevention of loops difficult, thus this simple
detection code.
If someone improves the forward/backward parsing so it cannot loop
then this commit should be reverted
Fixes Ticket3278
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Generate extradata with SPS/PPS based on container dimensions.
Authors of this commit are: Reimar and Thomas Mundt
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Fixes audio packet pts values in some files generated by AVID TRMG 3.01.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Footer partition may not be present and even if present footer partition
offset may not be set in any partition except last one.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Fixes sync in some samples (e.g. bugs 7581 and 8374 in VLC).
Based on a commit by Matthieu Bouron <matthieu.bouron@gmail.com>
Reported-by: Jean-Baptiste Kempf <jb@videolan.org>
CC: libav-stable@libav.org
The caller does not expect this and there are variables left that index to otherwise
deallocated data.
This reverts a hunk from "avformat: Use av_reallocp_array() where suitable"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The code that copies any extradata from the MXFDescriptor to the codec does
not set the size, which it should otherwise the copied data is useless.
Attached it a patch to correct this.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110':
vf_aspect: use the name 's' for the pointer to the private context
Remove commented-out debug #define cruft
Conflicts:
libavcodec/4xm.c
libavcodec/dvdsubdec.c
libavcodec/ituh263dec.c
libavcodec/mpeg12.c
libavfilter/avfilter.c
libavfilter/vf_aspect.c
libavfilter/vf_fieldorder.c
libavformat/rtmpproto.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
If no metadata follows MXF essence, that is essence ends with EOF,
"Operation not permitted" error was produced and a non-zero code
was returned from ffmpeg executable.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Some implementations of strftime do not like invalid values for
month/day, so ensure it doesn't happen.
Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Correct bit mask for month/day/hour/min/sec values.
For reference the timestamp format specified in S377M is as follow:
year (int16), month (uint8), day (uint8), hour (uint8), sec (uint8),
msec (uint8).
A value of 0 for every fields means timestamp "unknown".
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
MSVC lacks support for %T and %F, but the standard specifies them
only as shorthands to the long variants.
Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes audio packet pts values in some files generated by AVID TRMG 3.01.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes division by zero
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The following out-of-memory check is broken.
*sorted_segments = av_mallocz(...);
if (!sorted_segments) { ... }
The correct NULL check should use *sorted_segments.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Followup to http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/151321
patch by Reimar and Thomas Mundt fixes some AVC-Intra files from
different tickets.
It does not fix http://samples.ffmpeg.org/ffmpeg-
bugs/trac/ticket524/AVCI50.mov
Authors of this commit are: Reimar and Thomas Mundt
Patch and commit message mostly taken from ffmpeg-devel, mail by Carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Since 83cab07 audio stream time bases are based on SampleRate, not EditRate.
This fixes trac ticket #2029 and a few seeking issues.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
There's a a potential DoS problem in this function. Say an MXF file is
created with a PixelLayout with a long run of non-zeroes. Such a file could be
sent quickly (packed) over the net and would unpack quite fast. mxfdec would
then read it byte-by-byte, which would take considerable time.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Coverity thinks ofs can end up 15, thus writing past the end of layout[]. This
is incorrect since it's always incremented by 2. Checking ofs <= 14 makes
Coverity happy and doesn't hurt.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'e002e3291e6dc7953f843abf56fc14f08f238b21':
Use the new aes/md5/sha/tree allocation functions
avutil: Add functions for allocating opaque contexts for algorithms
svq3: fix pointer type warning
svq3: replace unsafe pointer casting with intreadwrite macros
parseutils-test: various cleanups
Conflicts:
doc/APIchanges
libavcodec/svq3.c
libavutil/parseutils.c
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Fixes some DNXHD files generated by AVID TM, where codec UL was set to A-law
meanwhile the real audio codec was PCM S16. According to SMPTE RP 224, A-law is
the default value for sound essence parameters therefore we should handle it
specially.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
mpc8: return more meaningful error codes.
mpc: return more meaningful error codes.
wv,mpc8: don't return apetag data in packets.
rtmp: do not warn about receiving metadata packets
x86: h264dsp: Adjust YASM #ifdefs
x86: yadif: Mark mmxext optimizations as such
h264: convert loop filter strength dsp function to yasm.
Improve descriptiveness of a number of codec and container long names
Conflicts:
libavcodec/flvdec.c
libavcodec/libopenjpegdec.c
libavformat/apetag.c
libavformat/mp3dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Without this fix the last sample was missing from the packet.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
mss1: fix decoding masked regions in interframes
mxfdec: fix off by one error.
mxfdec: only parse next partition pack if parsing forward
mxfdec: let pkt->pts = mxf->current_edit_unit if intra-only
mxfdec: fix frame height vs field height confusion
mxfdec: Add intra_only flag to MXFTrack
mxfdec: fix Avid AirSpeed files being misinterpreted as OP1a
mxfdec: truncate packets that extend past the next edit unit
mxfdec: set pixel format for cdci picture formats
mxfdec: detect uncomp pictures using essence container ul
mxfdec: set track edit rate num/den in expected order
x86/cpu: implement get/set_eflags using intrinsics
x86/cpu: implement support for cpuid through intrinsics
x86/cpu: implement support for xgetbv through intrinsics
lavu: use intrinsics for emms on systems lacking inline asm support
mem: Don't abort on av_malloc(0) in debug mode
Conflicts:
configure
libavformat/mxf.h
libavformat/mxfdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
We cannot do this in general since we could be reading
a file with B-frames while lacking an index.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This allows future assumptions to be made without affecting non-intra files.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
The "ECs != 1 -> OP1a" assumption was wrong. Luckily, the file
that triggered that behavior had two ECs, not zero. Hence
distinguishing between them is simple in this case.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This fixes rare cases where OPAtom may be treated
as OP1a, causing all essence to be read into RAM.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
The properties of the CDCI Descriptor are insufficient to specify
the pixel format for uncompressed picture data. SMPTE 377-1 and
RP224v10 have defined a set of picture coding labels to indicate what
formatting was used.
This patch uses 2 labels to detect UYVY422 or YUYV422 pixel formats.
It defaults to UYVY422 for 8-bit 4:2:2 pictures to support files
that were created before the coding labels were introduced ~2008
The codec pix_fmt default was changed from 0 (PIX_FMT_YUV420P) to
-1 (PIX_FMT_NONE)
Reviewed-by: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This supports detection of uncompressed picture in files that
didn't include a Picture Coding Label. The lables weren't
available until SMPTE 377-1 and RP224v10
Reviewed-by: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This matches the order used for the index table edit rate.
Reviewed-by: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* qatar/master:
mxfdec: replace x>>av_log2(sizeof(..)) by x/sizeof(..).
x86: h264_intrapred: Don't add the 'd' suffix to the SPLATB_REG macro
Conflicts:
libavformat/mxfdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Also replace x>>av_log2(sizeof(..)) + 1 by x/sizeof(..). The +1 is
probably meant to emulate av_log2_ceil(sizeof(..)) in cases where ".."
is not a power of two.
The reason for this is that such files have IndexTableSegments which when parsed
cover EditUnit ranges like this:
[0,1)
[249,250)
[249,377)
[0,249)
where each interval is [IndexStartPosition,IndexStartPosition+IndexDuration).
This would be reduced to a sparse index like:
[0,1), [249,250)
instead of the full range:
[0,249), [249,377)
See TimeCode_HD.mxf, UMID =
060a2b340101010101010410130000000004001aa0e59175025b2a5600da4101.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
We can't do this in general since we could be reading a file with B-frames while
lacking an index.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
