* qatar/master:
h264: new assembly version of get_cabac for x86_64 with PIC
h264: use one table instead of several for cabac functions
h264: (trivial) remove unneeded macro argument in x86/cabac.h
libschroedingerdec: check malloc
segment: reorder seg_write_header allocation
avio: make avio_close(NULL) a no-op
mov: Parse EC3SpecificBox (dec3 atom).
h264: new assembly version of get_cabac for x86_64 with PIC
This adds a hand-optimized assembly version for get_cabac much like the
existing one, but it works if the table offsets are RIP-relative.
Compared to the non-RIP-relative version this adds 2 lea instructions
and it needs one extra register.
There is a surprisingly large performance improvement over the c version (more
so than the generated assembly seems to suggest) just in get_cabac, I measured
roughly 40% faster for get_cabac on a K8. However, overall the difference is
not that big, I measured roughly 5% on a test clip on a K8 and a Core2.
Hopefully it still compiles on x86 32bit...
Now that only one table is used, there's some chance even darwin as compiles
this (apparently the label arithmetic used previously doesn't work if it
involves symbols defined in a different file, thanks to Ronald S. Bultje for
helping me with this).
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
h264: use one table instead of several for cabac functions
The reason is this is easier for PIC code (in particular on darwin...).
Keep the old names as pointers (static in cabac_functions.h so gcc
knows these are just immediate offsets) so the c code can nicely stay the same
(alternatively could use offsets directly in the functions needing the
tables). This should produce the same code as before with non-pic and better
code (confirmed) with pic.
The assembly uses the new table but still won't work for PIC case.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Jean First [Sat, 28 Apr 2012 13:38:41 +0000 (15:38 +0200)]
lavf remove duplicated check in has_duration
this hunk was merged in 8b97ae64 and cbf767a8 although the check was there a
few lines above since cdced09e. I removed the first check to reduce the differences
to libav.
Signed-off-by: Jean First <jeanfirst@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
h264: new assembly version of get_cabac for x86_64 with PIC
This adds a hand-optimized assembly version for get_cabac much like the
existing one, but it works if the table offsets are RIP-relative.
Compared to the non-RIP-relative version this adds 2 lea instructions
and it needs one extra register. get_cabac() gets about 40% faster, for
an overall speedup of about 5%.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
h264: use one table instead of several for cabac functions
The reason is this is easier for PIC code (in particular on darwin...).
Keep the old names as pointers (static in cabac_functions.h so gcc
knows these are just immediate offsets) so the c code can nicely stay the same
(alternatively could use offsets directly in the functions needing the
tables). This should produce the same code as before with non-pic and better
code (confirmed) with pic.
The assembly uses the new table but still won't work for PIC case.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Yusuke Nakamura [Mon, 30 May 2011 23:17:13 +0000 (08:17 +0900)]
mov: Parse EC3SpecificBox (dec3 atom).
Skip to parse fields for additional independent substreams and its
associated dependent substreams since libavcodec's E-AC-3 decoder does not
support them yet.
lavfi: create buffer reference in filters which need to access the ref later
Also add internal function ff_null_start_frame_keep_ref().
Fix crash when a following filter (e.g. settb) will unref the reference
passed by start_frame(), and then the reference is accessed in
end_frame() through inlink->cur_buf.
Martin Storsjö [Sat, 21 Apr 2012 17:44:24 +0000 (20:44 +0300)]
mpegts: Make sure we don't return uninitialized packets
This fixes crashes, where the demuxer could return 0 even
if the returned AVPacket isn't initialized at all. This
could happen if running into EOF or running out of probesize
with non-seekable sources.
Diego Biurrun [Thu, 26 Apr 2012 12:54:39 +0000 (14:54 +0200)]
gitignore: replace library catch-all pattern by more specific patterns
Ignoring all files that start with the name of a library matches some
files that are not generated. So replace libfoo/libfoo* with patterns
for static and shared libraries, pkg-config and version files.
Nicolas George [Mon, 23 Apr 2012 12:56:01 +0000 (14:56 +0200)]
doc: fix syntax for durations and timestamps.
Omitting the seconds has not worked for a long time, if ever.
Omitting the minutes too is just nonsensical for a duration
(it is indistinguishable from just seconds).
* qatar/master:
dsputil: fix invalid array indexing
configure: add libavresample to rpath
build: icc: silence some warnings
fft-test: add option to set cpuflag mask
cpu: recognise only cpu flag names pertinent to the architecture
avutil: add av_parse_cpu_flags() function
vp8: armv6: fix non-armv6t2 build
vp8: armv6 optimisations
vp8: arm: separate ARMv6 functions from NEON
ARM: add some compatibility macros
mov: support eac3 audio
avf: fix faulty check in has_duration
Mans Rullgard [Wed, 25 Apr 2012 20:15:39 +0000 (21:15 +0100)]
build: icc: silence some warnings
This disables the warning "external declaration in primary source file"
which is issued when a prototype for an extern function is found in a
.c file rather than a header file. We have such prototypes for asm
functions where a separate header file would be pointless.
* qatar/master:
FATE: use updated reference for aac-latm_stereo_to_51
avconv: use libavresample
Add libavresample
FATE: avoid channel mixing in lavf-dv_fmt
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