Issue 291 highlighted  the fact that CQ mode was not working
as expected in 1 pass mode,

This commit fixes that specific problem but in so doing I also
uncovered an overflow issue in the VBR code for 1 pass and
some data values not being correctly initialized.

For some clips (particularly short clips), the resulting
improvement is dramatic.

Change-Id: Ieefd6c6e4776eb8f1b0550dbfdfb72f86b33c960

Change-Id: Icf18b4981afb12ef255fca431d4ba45860dd22c9

Missing file causes 'make dist' to not include a complete copy of the
source.

Change-Id: I3f55aeb5a86d0e81234e4e4588cb8086ba4cfc4a

Added SSSE3 function

Change-Id: I8c304c92458618d93fda3a2f62bd09ccb63e75ad

Removed some unused functions

Change-Id: Ifdfc27453e53cfc75997b38492901d193a16b245

failed to find headers in the source directory

output to stdout instead of a hardcoded file

MinGW doesn't support _sopen_s

_fstat catches non-existant files

Change-Id: I24e0aacc6f6f26e6bcfc25f9ee7821aa3c8cc7e7

Rewrote these functions to process 16 pixels once instead of 8.

Change-Id: Ic67e80124467a446a3df4cfecfb76a4248602adb

Skip filter at zero offset.

Change-Id: I95fc7e211869bc0ab5bcfb7ab2e3259d1c0ccf38

1. Process 16 pixels at one time instead of 8.
2. Add check for both xoffset =0 and yoffset=0, which happens
   during motion search.
This change gave encoder 1%~3% performance gain.

Change-Id: Idaa39506b48f4f8b2fbbeb45aae8226fa32afb3e

enable parsing 64bit mach-o files (OS X)

also fixes --enable-debug issue!

Change-Id: I250ee69745cd2365e3e63264f9365cd58fbb6678

enable parsing 64bit elf files

Change-Id: I7981f4769cf1b822f288fe2e32166254e4394bab

GCC 4.5 and 4.6 both issue a warning about the multi-line format
string introduced in bc9c30a0, which also changed the whitespace
in the associated stt file by line-wrapping the long format string.

Instead, use multiple string constants, which the compiler will
concatenate. This maintains the original formatting, but remains
legible within the standard line length.

Change-Id: I27c9f92d46be82d408105a3a4091f145f677e00e

Change-Id: Icc9f12bd1e1bdaf51256dc8a90d08aa9be89ef34

* changes:
  Improved key frame detection.
  Improved KF insertion after fades to still.

Disable zbin boost in SPLITMV mode as intended. Was incorrectly looking
at vp8_ref_frame_order instead of vp8_mode_order when comparing against
SPLITMV. This condition should have always been false, as SPLITMV is
not in the range of valid reference frames.

Change-Id: I0408cc7595eff68f00efef6d008e79f5b60d14bf

Cast size_t to (unsigned long) and print it with the %lu format
string, which is more portable than C99's explict %zu for size_t.

This truncates on Windows x64 but otherwise works on 32 and 64 bit
platforms. In practice the stats file is unlikely to be so large.

Change-Id: I0432b3acf85fc6ba4ad50640942e1ca4614b21cb

In some cases where clips have been encoded with
borders (eg. some wide-screen content where there is a
border top and bottom and slide shows containing portrait
format photographs (border left and right)) key frames were
not being correctly detected.

The new code looks to measure cases where a portion of
the image can be coded equally easily using intra or inter
modes and where the resulting error score is also very low.
These "neutral" areas are then discounted in the key frame
detection code.

Change-Id: I00c3e8230772b8213cdc08020e1990cf83b780d8

This code extends what was previously done for GFs, to pick
cases where insertion of a key frame after a fade (or other
transition or complex motion)  followed by a still section, will
be beneficial and will reduce the number of forced key frames.

Change-Id: If8bca00457f0d5f83dc3318a587f61c17d90f135

Change-Id: I7d1e7db1866d829f6d4c6638d1c20e99959cc9a3

Change-Id: I784ea2b9fabbec1e99d02e97209981ff1b18ac82

Add mappings for Tom Finegan, Tero Rintaluoma

Change-Id: I014ad5bb7c8eb8261808d98ec0d4f77a8e7c3f35

Rename the common control id enum vp8_{dec,com}_control_id,
move VP8_DECODER_CTRL_ID_START to common, wrap long lines.

Change-Id: I659abc62f10aa389d496f7f43950775db0ef2f9f

Change-Id: I7b2fb326e1aabc08b032177a7b914a5b8bb7376f

Change-Id: I9d8a98a2f7ed1e3116d0bae35164618c41998bac

When the modified_error_left accumulator exceeds INT_MAX, an incorrect
cast to int resulted in a negative value, causing the rate control to
allocate no bits to that keyframe group, leading to severe undershoot
and subsequent poor quality.

This error was exposed by the recent change to the rolling target and
actual spend accumulators in commit 305be4e4 which fixed them to
actually calculate the average value rather than be re-initialized
on every frame to the average per-frame bitrate. When this bug was
triggered, the target bitrate could be 0, so the rolling target
becomes small, which causes the undershoot. The code prior to 305be4e4
did not exhibit this behavior because the rolling target was always
set to a reasonable value and was independent of the actual target
bitrate. With this patch, the actual target bitrate is calculated
correctly, and the rate control tracks as expected.

This cast was likely added to silence a compiler warning on a comparison
between a double (modified_error_left) and an int (0). Instead, this
patch removes the cast and changes the comparison to be against 0.0,
which should prevent the warning from reoccuring.

This fixes issue #289. Special thanks to gnafu for his efforts in
reporting and debugging this fix.

Change-Id: Ie5cc1a7b516c578a76c3a50c892a6f04a11621fe