When temporal layers is used (i.e., number_of_layers > 1),
we don't use the frame rate boost for setting the key
frame target size. The factor was forcing the target size to be
always at its minimum (2* per_frame_bandwidth) for low frame rates
(i.e., base layer frame rate).

Generally we should modify or remove this frame rate factor;
for now we turn if off for number_of_layers > 1.

Change-Id: Ia5acf406c9b2f634d30ac2473adc7b9bf2e7e6c6

add unit tests for vp8_short_idct4x4llm_c

Change-Id: I472b7c0baa365ba25dc99a3f6efccc816d27c941

* changes:
  Consolidate C version of token packing functions
  Multithreaded encoder, late sync loopfilter

When compiling with -ggdb3 the output includes an extraneous EQU from
vpx_ports/asm_offsets.h

https://trac.macports.org/ticket/33285

Change-Id: Iba93ddafec414c152b87001a7542e7a894781231

* changes:
  vpxenc: factor out input open/close
  vpxenc: add warning()/fatal() helpers
  vpxenc: factor out global config options

In vp8_rd_pick_inter_mode(), if total of eobs is zero, rate needs
to be adjusted since there are no non-zero coefficients for
transmission. The uv intra eobs calculated in
rd_pick_intra_mbuv_mode() need to be saved before they are
overwritten by inter-mode eobs.

Change-Id: I41dd04fba912e8122ef95793d4d98a251bc60e58

mode_info_context->mbmi.mb_skip_coeff has to always reflect the
existence or not of coeffs for a certain MB. The loopfilter needs this
info.
mb_skip_coeff is either set by the vp8_tokenize_mb or has to be set to
1 when the MB is skipped by mode selection. This has to be done
regardless of the mb_no_coeff_skip value.

prob_skip_false is needed just when mb_no_coeff_skip is 1. No need to
keep count of both skip_false and skip_true as they are complementary
(skip_true+skip_false = total_mbs)

Change-Id: I3c74c9a0ee37bec10de7bb796e408f3e77006813

segment_counts was zero init twice in the beginning of vp8_encode_frame.

Change-Id: Ibc29f6896dabd9aab1d0993f3941cf6876022e70

Depending on implementation the optimized SAD functions may return early
when the calculated SAD exceeds max_sad.

Change-Id: I05ce5b2d34e6d45fb3ec2a450aa99c4f3343bf3a

Built in echo in 'sh' on OS X does not support -n (exclude trailing
newline). It's not necessary so just leave it off. Fixes issue 390.

Build include guard using 'symbol' so that it is more likely to be
unique.

Change-Id: I4bc6aa1fc5e02228f71c200214b5ee4a16d56b83

cpu-features.h is not in the common paths, add
to the cflags for Android.

Change-Id: Icbafc7600d72f6b59ffb030f6ab80ee6860332bb

Simplify some of the file I/O for later commits which will add multistream
support

Change-Id: Idf1a05f3a29c95331d0c4a6ea5960904e4897fd4

Cosmetic. Allows exiting with an error message without opening a new
scope.

Change-Id: If227b29b825f0241acea79dd38f19e524552ee18

On Android NDK, rand() is inlined function.  But, on our SSE optimization,
we need symbol for rand()

Change-Id: I42ab00e3255208ba95d7f9b9a8a3605ff58da8e1

Change-Id: Ibcb35c32bf24c1d241090e24c5e2320e4d3ba901

Removed unnecessary variables, unrolled functions, eliminated
unnecessary mv bounds checks and branches.

Change-Id: I02d034c70cd97b65025d59dd67c695e1db529f0b

Replace inner loops of pack_mb_row_tokens_c and
pack_tokens_into_partitions_c with a call to pack_tokens_c.

Change-Id: I0341554fb154a14a5dadb63f8fc78010724c2c33

Second shot at this...

Sync with loopfilter thread as late as possible, usually just at the
beginning of next frame encoding. This returns control to application
faster and allows a better multicore scaling.

When PSNR packets are generated the final filtered frame is needed
imediatly so we cannot delay the sync. Same has to be done when
internal frame is previewed.

Change-Id: I64e110c8b224dd967faefffd9c93dd8dbad4a5b5

This is a first step towards specifying multiple output streams
with one command line.

Change-Id: Iac784d3911bf553694d024bbd0c3d547261e914b

Add a dependency so ndk-build will
generate the needed vpx_rtcd.h file.

Change-Id: I92c82e0996943dd0403c9956e1ba60e92e2837a9

Change-Id: I9fb510f9421fb3c317a8e32e3058cee977ddf9fa

As an optimization some architectures use the max_sad argument to break
out early from the SAD. Pass in INT_MAX instead of 0 to prevent this.

Change-Id: I653c476834b97771578d63f231233d445388629d

In the variance calculations the difference is summed and later squared.
When the sum exceeds sqrt(2^31) the value is treated as a negative when
it is shifted which gives incorrect results.

To fix this we cast the result of the multiplication as unsigned.

The alternative fix is to shift sum down by 4 before multiplying.
However that will reduce precision.

For 16x16 blocks the maximum sum is 65280 and sqrt(2^31) is 46340 (and
change).

PPC change is untested.

Change-Id: I1bad27ea0720067def6d71a6da5f789508cec265

Change-Id: I792d5236451905eb20a8ebe444ef5b2274e4f7a4

Allow the application to change the frame size during encoding. This
is only supported when not using lagged compress.

Change-Id: I89b585d703d5fd728a9e3dedf997f1b595d0db0f

MFQE postproc crashed with stream dimensions not a multiple of 16.
The buffer was memset unconditionally, so if the buffer allocation
fails we end up trying to write to NULL.

This patch traps an allocation failure with vpx_internal_error(),
and aligns the buffer dimensions to what vp8_yv12_alloc_frame_buffer()
expects.

Change-Id: I3915d597cd66886a24f4ef39752751ebe6425066

The 5-layer encode must have a keyframe every 16 frames.

The KF flag was being reset after the encode of the first
frame, which it should not do for the 5-layer case
(mode=6).

Change-Id: I207d6e689d347fe3fd1075b97a817e82f7ad53b9

Sometimes, a user doesn't have enough bandwidth to send high-resolution
(i.e. HD) video even though the camera catches HD video. This change
allowed users to skip highest-resolution encoding by setting that level's
target bit rate to 0.

To test it, modify the following line in vp8_multi_resolution_encoder.c.
    unsigned int  target_bitrate[NUM_ENCODERS]={1400, 500, 100};
To skip the highest-resolution level, change it to
    unsigned int  target_bitrate[NUM_ENCODERS]={0, 500, 100};
To skip the first and second highest resolution levels, change it to
    unsigned int  target_bitrate[NUM_ENCODERS]={0, 0, 100};

This change also fixed a small problem in mapping, which slightly helped
quality and performance.

Change-Id: I977bae9a9fbfba85c8be4bd5af01539f2b84bc81