This commit fixes the lack of palettized display of 1-bit video
in the qtrle decoder. It is related to my commit of
lavf/qtpalette, which added 1-bit video to the "palettized video"
category. As far as I can see, everything works fine, but comments are
of course welcome.

Below are links to sample files, which should now be displayed properly
with bluish colors, but which were previously displayed in black &
white.

Matroska:
https://drive.google.com/open?id=0B3_pEBoLs0faNjI0cHBMWDhYY2c
Earth Spin 1-bit qtrle.mkv

QuickTime (mov):
https://drive.google.com/open?id=0B3_pEBoLs0faUlItWm9KaGJSTEE
Earth Spin 1-bit qtrle.mov
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This fixes a regression of the sample from Ticket 2371
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

It causes the angle channel number to equal the magnitude channel
number, which makes the stream undecodable according to the
specification.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

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

Rationale: supports >16 bit audio, more than 96dB SNR.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes ticket #4792.

This fixes segmentation faults caused by passing a packet_ptr of NULL to
memcpy.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This can be used to simplify code in a couple of places.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This preempts potential bugs if this is changed and the indention
ends up different from C interpretation
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This is a waste of computing power and will result to 0,
making it always dropped.
Use maximum difference values instead.

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

This fixes ubsan runtime error: left shift by 8 places cannot be
represented in type 'int'
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This causes a overall slowdown of 0.1 % (tested with mpeg4 single thread encoding of matrixbench at QP=3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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>

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>

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

* commit '40d94967':
  dca: use defines for subband related constants
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '8563f988':
  x86: use emms after ff_int32_to_float_fmul_scalar_sse
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'f0f54117':
  checkasm: x86: post commit review fixes
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'f4f27e4c':
  x86: zero extend the 32-bit length in int32_to_float_fmul_scalar implicitly
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '69a68593':
  Remove stray line breaks from avpriv_{report_missing_feature|request_samples}
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '5049f6b7':
  rtpdec_jpeg: Coalesce redundant error checks
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '2008f760':
  dca: remove unused decode_hf function and quant_d tables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'aebf0707':
  dca: change the core to work with integer coefficients.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '85990140':
  dca: Add math helpers.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '489e6add':
  checkasm: add fmtconvert tests
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '568a4323':
  checkasm: add synth_filter test
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'e71b747e':
  checkasm: add tests for dcadsp
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '9d218d57':
  checkasm: add float comparison util functions
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Previously it included the SRC_PATH in every title.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>