These are common with audio atoms. Without this the demuxer would read two
bytes at a time for a mono 16-bit file.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Specially crafted files can lead the parsing code to take too long.
We fix a lot of these problems by not allowing local tags to extend
past the end of the set and not allowing other KLVs to be read past
the end of themselves.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
This can happen if an index table segment has a very large IndexStartPosition.
zzuf3.mxf is an example of such a file.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Only the OPAtom demuxing logic is guaranteed to have index tables,
meaning OP1a files that lack an index would cause SIGSEGV.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
* qatar/master:
pixdesc: mark pseudopaletted formats with a special flag.
avconv: switch to avcodec_encode_video2().
libx264: implement encode2().
libx264: split extradata writing out of encode_nals().
lavc: add avcodec_encode_video2() that encodes from an AVFrame -> AVPacket
cmdutils: update copyright year to 2012.
swscale: sign-extend integer function argument to qword on x86-64.
x86inc: support yasm -f win64 flag also.
h264: manually save/restore XMM registers for functions using INIT_MMX.
x86inc: allow manual use of WIN64_SPILL_XMM.
aacdec: Use correct speaker order for 7.1.
aacdec: Remove incorrect comment.
aacdec: Simplify output configuration.
Remove Sun medialib glue code.
dsputil: set STRIDE_ALIGN to 16 for x86 also.
pngdsp: swap argument inversion.
Conflicts:
cmdutils.c
configure
doc/APIchanges
ffmpeg.c
libavcodec/aacdec.c
libavcodec/dsputil.h
libavcodec/libx264.c
libavcodec/mlib/dsputil_mlib.c
libavcodec/utils.c
libavfilter/vf_scale.c
libavutil/avutil.h
libswscale/mlib/yuv2rgb_mlib.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This changes a number of FATE results, since before this commit, the
timestamps in all tests using rawenc were made up by lavf.
In most cases, the previous timestamps were completely bogus.
In some other cases -- raw formats, mostly h264 -- the new timestamps
are bogus as well. The only difference is that timestamps invented by
the muxer are replaced by timestamps invented by the demuxer.
cscd -- avconv sets output codec timebase from r_frame_rate
and r_frame_rate is in this case some guessed number 31.42 (377/12),
which is not accurate enough to represent all timestamps. This results
in some frames having duplicate pts. Therefore, vsync 0 needs to be
changed to vsync 2 and avconv drops two frames. A proper fix in the
future would be to set output timebase to something saner in avconv.
nuv -- previous timestamps for video were wrong AND the cscd
comment applies, one frame is dropped.
vp8-signbias -- the file contains two frames with identical timestamps,
so -vsync 0 needs to be removed/changed to -vsync 2 and avconv drops one
frame.
vc1-ism -- apparrently either the demuxer lies about timestamps or the
file is broken, since dts == pts on all packets, but reordering clearly
takes place.
This sets __OUTPUT_FORMAT__ to win64 instead of win32, even though both
(through -m amd64) produce 64-bit binary code.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Functions using INIT_MMX may still access XMM registers through direct
means (xmm0-15). Therefore, they still need to be marked for clobber
so they can be properly saved/restored.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
The spec says the following speaker mapping is default:
center front speaker
left, right center front speakers,
left, right outside front speakers,
left surround, right surround rear speakers,
front low frequency effects speaker
It currently has different meanings at different times (dts of the last
read packet/pts of the last decoded frame). Reduce obfuscation by
storing pts of the decoded frame in the frame itself.
Conflicts:
ffmpeg.c
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
