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Adds a couple of CONFIG_SPATIAL_SVC macros to allow compilation
when spatial-svc is disabled.

Change-Id: I67f84406d1d3fa26f225d9c6518161a0841f2d29

All changes are for spatial svc only.
1. Enable encoding hidden frames in each layer and use alt reference idex to reference the hidden frame in each layer
2. Use golden reference idx for spatial reference
3. For those layers that don't have hidden frames (caused by lack of frame buffers), reference a hidden frame in lower layers
4. Add "auto-alt-refs" in svc options
Change-Id: Idf27d1fd2fb5f3ffd9e86d2119235e3dad36c178

Change-Id: I1b6ed2e82a7e3e8a9e790bf29d667a3f856a9518

Change-Id: I7eda0f5e678034f0e9c2ab481c517d2e9b280eb5

Change-Id: I930dced169c9d53f8044d2754a04332138347409

Change-Id: I2a41c1fe08261065dd21fe631b2b5937acfbfb51

Change-Id: Ifb09502ddf62664b3bfc62172de46bc36fde8efb

Change-Id: I76a48b03388a8c5cc74b871deb836cd92263b306

Change-Id: I2e97a1d3935944573d027a8020fe1aa391a6f27a

Change-Id: Ia096aafa8aca4f9e58450c4b861393d8f0a15afe

Root cause is number of spatial layers is set through
parse_options() when running from ffmpeg.

Change-Id: Icd79cd13fd76e8712150d803838a33fee9117dcb

Change-Id: I67ea45119f23659279d24aa67eb823c751ac86fc

      1. Save stats for each spatial layer
      2. Add frame buffer management for svc first pass rc
      3. Set default spatial layer to 1
      4. Flush encoder at the end of stream in test app
This only supports spatial svc.
Change-Id: Ia89cfa87bb6394e6c0405b921d86c426d0a0c9ae

si->layers is validated prior to assignment; add an assertion prior to
first use as a loop bound

Change-Id: I727d4e24be3c352c3e5320d92e89d3f787944812

      2. Add read/write for RC stats file
The two pass RC for svc does not work yet. This is just the first
step. We need further development to make it working.
Change-Id: I8ef0e177dff0b5ed3c97a916beea5123717cc6f2

"index 5 out of bounds for type" compiler warings

Change-Id: I414d39198cb02d1b8e2330002ed5fe062aaea95e

Change-Id: I0b4fa1f8104b7fa5780d4e99e5401c14271a992d

Change-Id: Ia7677fb436667bc4f76db71f65e4784f433f7826

Change-Id: I4dcabb60cb1185eb9a2efa18b50f17af272d2cd6

If MINGW_HAS_SECURE_API is defined, we don't need to declare strtok_s, but we still need strtok_r define.

Change-Id: I7cf781bb58f991a2bdce6a2ccf5082f6924579a3

Change-Id: I242035d433f6d4027252cb8aa7d938c4170a2d65

This fixes errors generated by c++ compiler.

Change-Id: I0f792371790b5e6462b77c8d7fabab0db30b11eb

This patch adds a buffer-based rate control for temporal layers,
under CBR mode.

Added vpx_temporal_scalable_patters.c encoder for testing temporal
layers, for both vp9 and vp8 (replaces the old vp8_scalable_patterns).

Updated datarate unittest with tests for temporal layer rate-targeting.

Change-Id: I8900a854288b9354d9c697cfeb0243a9fd6790b1

This reverts commit 6be2b750

Change-Id: Ic52acd98b37c3ba49d4999b463389eb564f49c4b

This patch adds a buffer-based rate control for temporal layers,
under CBR mode.

Added vpx_temporal_scalable_patters.c encoder for testing temporal
layers, for both vp9 and vp8 (replaces the old vp8_scalable_patterns).

Updated datarate unittest with tests for temporal layer rate-targeting.

Change-Id: I9cb6cce2494390ae6096ee17774af7fb9308bde7

Modifications to the spatial scalable encoder to match
changes made to the scaling code in the decoder.

In particular, the use of a dummy first frame was removed
now that the decoder is able to handle a smaller first
frame.

SvcTest.FirstFrameHasLayers unit test re-enabled.

Change-Id: Ic2e91fbe4eadf95895569947670d36d68abaf458

SVC multiple layer per frame encoding is invoked with vpx_svc_init and
vpx_svc_encode. These interfaces are designed to be invoked from ffmpeg.
Additional improvements:
- make dummy frame handling a bit more explicit
- fixed bug with single layer encodes
- track individual frame sizes and psnrs instead of averages
- parameterized quantizer, 16th scalefactors, more logging,
- enabled single layer encodes to generate baseline
- include new mode for 3 layer I frame with 5 total layers

Change-Id: I46cfa600d102e208c6af8acd6132e0cc25cda8d4

This reverts commit a82001b1, reversing
changes made to f6d870f7.

This commit breaks windows builds and needs some work to fix those and
some additional comments.

Change-Id: Ic0b0228e36704b127e5e399ce59db26182cfffe7

These changes were originally made in the Stratacaster team-review repository

commit e114bffcd82ad74c3696ec58e13c0ac895d6c82d
Author: Charles 'Buck' Krasic <ckrasic@google.com>
Date:   Mon Oct 14 16:52:13 2013 -0700

    Make dummy frame handling a bit more explicit, fixing bug
    with single layer encodes.

Squashed commit of the following:

commit 1ebbfd976c0fadb02bf1ea562a2d0e3f0206daad
Merge: ac468dde 54e88b7
Author: Ivan Maltz <ivanmaltz@google.com>
Date:   Fri Oct 11 17:29:58 2013 -0700

    Move SVC code from vp9_spatial_scalable_encoder to libvpx module accessible from ffmpeg

commit 54e88b78b160becc9569fc3c6cb6b0a8c95dc357
Author: Ivan Maltz <ivanmaltz@google.com>
Date:   Tue Oct 8 09:08:40 2013 -0700

    common svc encoding code for sample app and ffmpeg

    added svc_encodeframe.c, svc_context.h, svc_test.cc

    vp9_spatial_scalable_encoder uses vpx_svc_encode

commit 5616ec8e2e3d3e8d277333d8a9242f6c70151162
Merge: 4528014 e29137df
Author: Ivan Maltz <ivanmaltz@google.com>
Date:   Tue Oct 8 08:47:58 2013 -0700

    Merge branch 'master' into stratacaster

commit 45280148450b1f3d61e390df8aadedf85cd5bce1
Merge: bb2b675 1ab60f7b
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Fri Oct 4 10:22:31 2013 -0700

    Merge branch 'master' into stratacaster

commit bb2b675e595dc9bfc8551e963edf56800c3aea61
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Wed Oct 2 12:37:26 2013 -0700

    Track individual frame sizes and psnrs instead of averages.

commit c6d303b714795c81e7ceb4173967115c9f8ff5b7
Merge: fa87df9 35830879
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Fri Sep 27 10:05:35 2013 -0700

    Merge branch 'master' into stratacaster

commit fa87df94fba923d9f7aeb8ae20c6e15f777e00b5
Merge: bf22d71 3c465af2
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Thu Sep 26 16:10:31 2013 -0700

    Merge branch 'master' into stratacaster

commit bf22d7144895a82e0c348ac177c8a261b9e2b88e
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Thu Sep 26 11:10:34 2013 -0700

    Parameterized quantizer, 16th scalefactors, more logging, enabled single layer encodes to generate baseline.

commit ceffd7e6025b765f9886b5ea0f324248aa37e327
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Thu Sep 19 10:04:49 2013 -0700

    - Include new mode for 3 layer I frame with 5 total layers.
    - Refactor svc api.

Change-Id: Ie4d775e21e006fa597d884c59488dc999478e9b5