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>

* commit '823fa700':
  fate: Rework sgi tests into a suite and add the missing ones
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

K&R coding style is implied but not listed in 'Coding Rules'.
Signed-off-by: Rick Kern <kernrj@gmail.com>

* commit '4a0918ca':
  sgienc: Support encoding high bit depth images with RLE
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

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

* commit '59e3f4e5':
  sgienc: Use a local RLE encoding function
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '62cc8f4d':
  sgienc: Port to bytestream2
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '99f40fd0':
  sgienc: Do not end RLE lines with 0s
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '4d05e939':
  libvpxenc: remove some unused ctrl id mappings
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '6b7df142':
  doc: Document better how to use MSYS2
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '8375dc1d':
  asfdec: handle the case when the stream index has an invalid value better
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'c12c085b':
  dcadec: Do not check for overreads in auxiliary data
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'c8fa6478':
  oggparsespeex: Fix unchecked malloc
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'afdff800':
  configure: Clearly state that MSYS native builds are discouraged
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '462a54e2':
  lavc: Deprecate avctx.rtp_callback field
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '8a9de5c5':
  doc/encoders: document the QSV option mappings
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fc4c27c4':
  qsvenc: expose additional encoding options
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'e7d7cf86':
  qsvenc: support more RC methods
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Fix color fading: previously color could fade to red when
volume level for red color was actually never reached.
Display volume value on right side.
Use red color only if clipping is needed.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes probing of truehd/mlp files with a lot of frames in between the
major sync frames. The spec allows a distance of up to 128 frames in
between major sync frames, which leads to the probing code not reaching
the desired score.

Fixes out of array read
Fixes: 59bb925e90201fa0f87f0a31945d43b5/asan_heap-oob_4a52e5_3388_66027f11e3d072f1e02401ecc6193361.jvt

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

Fixes out of array access
Fixes: 482d8f2fd17c9f532b586458a33f267c/asan_heap-oob_4a52b6_7417_1d08d477736d66cdadd833d146bb8bae.mov

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

Fixes integer overflow
Fixes: 3a45b2ae02f2cf12b7bd99543cdcdae5/asan_heap-oob_1dff502_8022_899f75e1e81046ebd7b6c2394a1419f4.mov

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
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>

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