Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This is likely more precise and conveys the intent better.
Reviewed-by: Mark Harris <mark.hsj@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Signed-off-by: Andrey Utkin <andrey.od.utkin@gmail.com>
Signed-off-by: Lou Logan <lou@lrcd.com>

On systems having cbrt, there is no reason to use the slow pow function.

Sample benchmark (x86-64, Haswell, GNU/Linux):
new:
5124920 decicycles in cbrt_tableinit,       1 runs,      0 skips

old:
12321680 decicycles in cbrt_tableinit,       1 runs,      0 skips
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This further speeds up runtime initialization, with identical generated tables.

Sample benchmark (x86-64, Haswell, GNU/Linux):

old:
34441423 decicycles in mpegaudio_tableinit,    8192 runs,      0 skips

new:
10776291 decicycles in mpegaudio_tableinit,    8192 runs,      0 skips

Most low hanging fruit is taken care of here. For some idea, note that
83,064 array elements totalling 233,722 bytes need to be initialized.
Thus, with this patch, we average ~ 12.9 cycles per element or ~ 4.6
cycles per byte.
Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This does some miscellaneous stuff mainly avoiding the usage of pow to
achieve significant speedups. This is not speed critical, but is
unnecessary latency and cycles wasted for a user.

All tables tested and are identical to the old ones
(bit-exact even in floating point case).

Sample benchmark (x86-64, Haswell, GNU/Linux):
old:
102329530 decicycles in mpegaudio_tableinit,       1 runs,      0 skips

new:
34111900 decicycles in mpegaudio_tableinit,       1 runs,      0 skips
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This is useful for build-time table generation (--enable-hardcoded-tables),
by providing compat shims for hosts that have broken libms.

This file is deliberately kept minimal; functions can always be added on
an as-needed basis.
Reviewed-by: Clément Bœsch <u@pkh.me>
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Whoever wrote this stuff had a pretty bad libm - digits differ pretty
quickly.
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Fixes CID1258479
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Remove all modes except levels mode.
Users should already switch to other filters with
extended funcionality: vectorscope and waveform.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

The code expects actual positive numbers and gives completely wrong
results if INT64_MIN is treated as positive
Instead clip it into the valid range that is add 1 and treat it as
negative
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes part of mozilla bug 1229167

Found-by: Tyson Smith
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The table in question is a 253 byte one. In fact, it turns out that
dynamic generation of the table results in an increased binary size.

Code compiled with GCC 5.2.0, x86-64 (size in bytes), before and after
patch:
old: 62321064 libavcodec/libavcodec.so.57
new: 62320536 libavcodec/libavcodec.so.57

Thus, it always make sense to statically allocate this.

Tested with FATE with/without --enable-hardcoded-tables.
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Signed-off-by: Will Kelleher <wkelleher@gogoair.com>
Previous version reviewed-by: Ivan Uskov <ivan.uskov@nablet.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Suggested-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: ==13287== Invalid read of size 4
==13287==    at 0x45161A: flush_buffer (aviobuf.c:143)
==13287==    by 0x451971: avio_flush (aviobuf.c:200)
==13287==    by 0x512CCF: av_write_trailer (mux.c:1016)
==13287==    by 0x41A5E0: close_connection (ffserver.c:853)
==13287==    by 0x421EDC: rtsp_cmd_interrupt (ffserver.c:3245)
==13287==    by 0x420B9C: rtsp_parse_request (ffserver.c:2854)
==13287==    by 0x41A9C2: handle_connection (ffserver.c:930)
==13287==    by 0x41A04B: http_server (ffserver.c:700)
==13287==    by 0x423A60: main (ffserver.c:3897)
==13287==  Address 0xb6cd258 is 88 bytes inside a block of size 192 free'd
==13287==    at 0x4C2B5D9: free (vg_replace_malloc.c:446)
==13287==    by 0x1004DAC: av_free (mem.c:239)
==13287==    by 0x454835: avio_close_dyn_buf (aviobuf.c:1170)
==13287==    by 0x41F385: http_prepare_data (ffserver.c:2368)
==13287==    by 0x41F59B: http_send_data (ffserver.c:2416)
==13287==    by 0x41ABE2: handle_connection (ffserver.c:986)
==13287==    by 0x41A04B: http_server (ffserver.c:700)
==13287==    by 0x423A60: main (ffserver.c:3897)
Reviewed-by: "Reynaldo H. Verdejo Pinochet" <reynaldo@osg.samsung.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes assertion failure
Fixes: d0bb0662da342ec65f8f2a081222e6b9/signal_sigabrt_7ffff6ae7cc9_5471_82964f0a9ac2f4d3d59390c15473f6f7.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: out of array read
Fixes: 76c515fc3779d1b838667c61ea13ce92/asan_heap-oob_1fc0d07_8913_794a4629a264ebdb25b58d3a94ed1785.bit

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The DC VLC table used is too small, fixing this requires a sample,
thus request a sample.
Some samples are said to work even though the table has the wrong size, thus
this is left enabled if the user enables experimental features.

Fixes: 2abd25478c62a675f335fac00b467023/asan_static-oob_10aff98_1227_8811480c6ef1e970a7977ceb7e5a9958.mxf

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Approved-by: kurosu
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes ticket #5029.
Reported and analyzed by videolan trac user HenkDemper in vlc ticket #15762.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

As noted in a comment, pe.min in the reference encoder
is centered around current pe. The bit reservoir algo
needs pe.min to be a local minimum, because it can only
account for local PE variations. If it's set to a global
minimum as was being done, bit reservoir logic doesn't
work as efficiently.

This patch tries to forget old minimums and converge to
a local minimum without losing the stability of the
previous solution. Listening tests until now suggest this
solves numerous RC issues.

Needed after f62fe535/2c17fb61.

Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Matt Oliver <protogonoi@gmail.com>

* commit '0e239529':
  nut: Mark non-fatal errors as warnings
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '62f72b40':
  nut: Provide more information on failure
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '2c17fb61':
  rtsp: Log getaddrinfo failures
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '12b14382':
  udp: Provide additional information on getaddrinfo failure
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '34af7813':
  udp: Use the logging context
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '98063bcf':
  rtsp: Do not assume getnameinfo cannot fail
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '5b70fb8f':
  movenc-test: Fix integer overflows
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fdd5c48e':
  texturedsp: Explicitly cast RGBA parameters to unsigned
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'eef38316':
  texturedspenc: Avoid using separate variables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '7831fb90':
  textureencdsp: cosmetics: Use normal static const for tables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '99cb833f':
  sgi: Correctly propagate meaningful error values
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>