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2013-03-13removed reference to "LLM" and "x8"Yaowu Xu
The commit changed the name of files and function to remove obselete reference to LLM and x8. Change-Id: I973b20fc1a55149ed68b5408b3874768e6f88516
2013-03-12fix superframe index marker masksJohn Koleszar
The superframe index marker byte carries data in the lower 5 bits. Only the upper 3 should be used as part of the mask to detect it. By masking with 0xf0, the previous code was incorrect for frames over 65k bytes. Change-Id: I6248889f5af227457f359a56b2348ef6db87a3b4
2013-03-12fix superframe index with lagged encodingJohn Koleszar
If a superframe (ARF) is generated while flushing the lagged frames at the end of the clip, the buffer pointer wasn't being properly updated to account for the size of the index, causing the next frame to overwrite the index on the previous frame. Change-Id: Ib158cc8e4183d663bdfb9ba002dd4c98916abdc9
2013-03-12Merge "disambiguate superframe index in vp9_stop_encode()" into experimentalPaul Wilkins
2013-03-12disambiguate superframe index in vp9_stop_encode()John Koleszar
If the bool-coded partition naturally ends in a byte that matches the superframe index marker, it could lead to a parse error. This commit ensures that if such a marker is seen, it is padded out with an additional zero byte to disambiguate it. Change-Id: Id977de05745b6fa9ef08afb71e210a2a3ecca02e
2013-03-12Merge "Change buffer update rules on ARF overlay." into experimentalPaul Wilkins
2013-03-12Merge "Fix typo in comment for number of extra bits for cat6 tokens." into ↵Ronald S. Bultje
experimental
2013-03-12Merge "fix an assumption about uv_stride" into experimentalJohn Koleszar
2013-03-12Fix typo in comment for number of extra bits for cat6 tokens.Ronald S. Bultje
Change-Id: I07ddf3be8bc5d6c2eb561d4241879777c315b183
2013-03-12Merge "Changes to maximum gf/arf interval." into experimentalPaul Wilkins
2013-03-12Change buffer update rules on ARF overlay.Paul Wilkins
When coding the frame that corresponds to the midpoint frame defining an ARF, do not update the last reference frame buffer. Previously this buffer was updated meaning that when coding the next ARF all the reference buffers were the same (or nearly so). Turning the update off means that the frame before is still available as an alternative predictor and for use in compound prediction. Also fixed inconsistency in test for mismatch (patch from JK). Net average gains (derf 0.049, yt 0.163, yt-hd 0.207, std-hd 0.286) Change-Id: Ifee21da21ccbb1648ac2eafe890d3ce60562c7bc
2013-03-12fix an assumption about uv_strideJohn Koleszar
Use the uv_stride from the framebuffer rather than deriving it from the y_stride. Change-Id: I94581cb741539d094ff062b3d008235556903b8c
2013-03-11Merge "Code cleanup." into experimentalDmitry Kovalev
2013-03-11Code cleanup.Dmitry Kovalev
Removing redundant code, introducing new functions for better decomposition, adding 'clamp' function to vp9_common.h. Change-Id: Ic3b8ca13bbc38f60f0c9c43910b5802005e31aaf
2013-03-11Merge "Reinitialize motion search tables on frame size change" into experimentalJohn Koleszar
2013-03-11Merge "Add 'superframe' index" into experimentalJohn Koleszar
2013-03-11Changes to maximum gf/arf interval.Paul Wilkins
This patch puts in an adjustment to the maximum gf/arf interval based on the active q range. It sets a fixed baseline maximum of 16 but can drop this down to 12 at lower q. This required some re-ordering in the first pass code to insure we have a Q range estimate before defining the first gf sequence. The main gains seed are int he STD hd set on 50fps clips where previously the interval could rise as high as 25. On the std hd clip the gains are around 2.8% with limit set to 300 frames. When combined with the one shot rate control flags we get combined of: derf 1.55% (limit300), yt 7.25%, hd 5.17% std-hd 5.84% (limit300) Change-Id: Ib380d51354511f2ff0f171a8df4e74291c0421f9
2013-03-11Fix vp9_tree_probs_from_distribution with CONFIG_CODE_NONZEROCOUNTJohn Koleszar
The automatic merge result was incomplete. Change-Id: I8976318bfc346d867660a013a302c80edb25fc29
2013-03-11Merge "Simplify vp9_adapt_nmv_probs" into experimentalJohn Koleszar
2013-03-11Simplify vp9_adapt_nmv_probsJohn Koleszar
Remove the temporary branch count arrays and build the adapted probabilities while walking the tree. Gives an additional 1.5% or so on CIF. Change-Id: I875d61e5e0ec778e5d2f7f9d0837b989a91cf3a3
2013-03-11Merge "Minor optimization in mv entropy adaptation" into experimentalDeb Mukherjee
2013-03-11Merge "Optimize vp9_tree_probs_from_distribution" into experimentalJohn Koleszar
2013-03-11Minor optimization in mv entropy adaptationDeb Mukherjee
Adds a check to exit from the increment_nmv_count function when the increment is 0. Change-Id: I99c1e342d351f7800e23590f9c2419881bf1d708
2013-03-10Optimize vp9_tree_probs_from_distributionJohn Koleszar
The previous implementation visited each node in the tree multiple times because it used each symbol's encoding to revisit the branches taken and increment its count. Instead, we can traverse the tree depth first and calculate the probabilities and branch counts as we walk back up. The complexity goes from somewhere between O(nlogn) and O(n^2) (depending on how balanced the tree is) to O(n). Only tested one clip (256kbps, CIF), saw 13% decoding perf improvement. Note that this optimization should port trivially to VP8 as well. In VP8, the decoder doesn't use this function, but it does routinely show up on the profile for realtime encoding. Change-Id: I4f2848e4f41dc9a7694f73f3e75034bce08d1b12
2013-03-08Continued experiment with nonzero countDeb Mukherjee
Adds probability updates for extra bits for the nzcs, code for getting nzc stats, plus some minor cleanups and fixes. Change-Id: If2814e7f04fb52f5025ad9f400f3e6c50a00b543
2013-03-08Merge "Add support for tx_select in i8x8 encoding in keyframes." into ↵Ronald S. Bultje
experimental
2013-03-08Merge "Add vp9_idct4_1d_sse2" into experimentalYunqing Wang
2013-03-08Add vp9_idct4_1d_sse2Yunqing Wang
Added SSE2 idct4_1d which is called by vp9_short_iht4x4. Also, modified the parameter type passed to vp9_short_iht functions to make it work with rtcd prototype. Change-Id: I81ba7cb4db6738f1923383b52a06deb760923ffe
2013-03-08Merge "Consistent usage of ROUND_POWER_OF_TWO macro." into experimentalDmitry Kovalev
2013-03-08Merge "Optimize add_constant_residual function" into experimentalYunqing Wang
2013-03-08Extend diff MV limit from +/-256 to +/-1024Jingning Han
Increase the motion search range by 4x. Change MV_CLASS tree of the entropy coding to allow two additional mv classes to cover the extended motion vector limit. The codec determines the effective motion search range conditioned on the actual frame dimension. It provides coding gains: stdhd 0.39% yt 0.56% hd 0.47% Major coding performance gains are packed in several sequences with intense motion activities, e.g., ped_1080p gains 7% at high bit-rates, and on average 3%. TODO: Need to further tune the rate control and motion search units. Change-Id: Ib842540a6796fbee5a797809433ef6a477c6d78d
2013-03-08Add support for tx_select in i8x8 encoding in keyframes.Ronald S. Bultje
Also enable tx_select for keyframes. Change-Id: Iadb1231d9fa7af0c8dce3d9b41830b93a302479e
2013-03-07Optimize add_constant_residual functionYunqing Wang
Optimized adding constant diff to predictor, which gave about 2% decoder performance gain. Change-Id: I47db20c31428e8c4a8f16214a85cbe386a6e9303
2013-03-07Merge "Allocate 16-byte aligned diff buffer" into experimentalYunqing Wang
2013-03-07Allocate 16-byte aligned diff bufferYunqing Wang
This was done based on John's suggestion. Change-Id: I62516a513c31fe3dbea0d6cd063df79d9e819ec8
2013-03-07Consistent usage of ROUND_POWER_OF_TWO macro.Dmitry Kovalev
Change-Id: I44660975e9985310d8c654c158ee7a61291b5a08
2013-03-07Update ADST selection if tx_size < block_size.Ronald S. Bultje
Change-Id: Ic9b336486774c95ffbb92adcb110cc0fc2a83cc5
2013-03-07Re-add support for ADST in superblocks.Ronald S. Bultje
This also changes the RD search to take account of the correct block index when searching (this is required for ADST positioning to work correctly in combination with tx_select). Change-Id: Ie50d05b3a024a64ecd0b376887aa38ac5f7b6af6
2013-03-07Fix issue in add_residual intrinsic functionYunqing Wang
Yaowu found this function had a compiling issue with MSVC because of using _mm_storel_pi((__m64 *)(dest + 0 * stride), (__m128)p0). To be safe, changed back to use integer store instruction. Also, for some build, diff could not always be 16-byte aligned. Changed that in the code. Change-Id: I9995e5446af15dad18f3c5c0bad1ae68abef6c0d
2013-03-07Coding con-zero count rather than EOB for coeffsDeb Mukherjee
This patch revamps the entropy coding of coefficients to code first a non-zero count per coded block and correspondingly remove the EOB token from the token set. STATUS: Main encode/decode code achieving encode/decode sync - done. Forward and backward probability updates to the nzcs - done. Rd costing updates for nzcs - done. Note: The dynamic progrmaming apporach used in trellis quantization is not exactly compatible with nzcs. A suboptimal approach has been used instead where branch costs are updated to account for changes in the nzcs. TODO: Training the default probs/counts for nzcs Change-Id: I951bc1e22f47885077a7453a09b0493daa77883d
2013-03-06Merge "Code cleanup." into experimentalDmitry Kovalev
2013-03-06Merge "Added stricter Q control flag." into experimentalPaul Wilkins
2013-03-06Added stricter Q control flag.Paul Wilkins
Added a variant of the one shot maxQ flag for two pass that forces a fixed Q for the normal inter frames. Disabled by default. Also small adjustment to the Bits per MB estimation. Change-Id: I87efdfb2d094fe1340ca9ddae37470d7b278c8b8
2013-03-05Merge "Optimize add_residual function" into experimentalYunqing Wang
2013-03-05Optimize add_residual functionYunqing Wang
Optimized adding diff to predictor, which gave 0.8% decoder performance gain. Change-Id: Ic920f0baa8cbd13a73fa77b7f9da83b58749f0f8
2013-03-05Code cleanup.Dmitry Kovalev
Removing redundant 'extern' keywords, fixing formatting and #include order, code simplification. Change-Id: I0e5fdc8009010f3f885f13b5d76859b9da511758
2013-03-05Add 'superframe' indexJohn Koleszar
A 'superframe' is a group of frames that share the same PTS, but have a defined decoding order. This commit adds the ability to append an index to such a group of frames, allowing for random access to the constituent frames. This could be useful for frame-level parallelism or partial decoding in a multilayer scenario. Decoding the stream serially without such an index should work as a fallback, and VP9/TestSuperframeIndexIsOptional verifies that. Change-Id: Idff83b7560e1a7077d8fb067bfbc45b567e78b1c
2013-03-05Merge changes Ifacbf5a0,Ibad7c3dd into experimentalRonald S. Bultje
* changes: vpxenc: actually report mismatch on stderr. Make superblocks independent of macroblock code and data.
2013-03-04Merge "Code cleanup and simplification of build_4x4uvmvs function." into ↵Dmitry Kovalev
experimental
2013-03-04Make superblocks independent of macroblock code and data.Ronald S. Bultje
Split macroblock and superblock tokenization and detokenization functions and coefficient-related data structs so that the bitstream layout and related code of superblock coefficients looks less like it's a hack to fit macroblocks in superblocks. In addition, unify chroma transform size selection from luma transform size (i.e. always use the same size, as long as it fits the predictor); in practice, this means 32x32 and 64x64 superblocks using the 16x16 luma transform will now use the 16x16 (instead of the 8x8) chroma transform, and 64x64 superblocks using the 32x32 luma transform will now use the 32x32 (instead of the 16x16) chroma transform. Lastly, add a trellis optimize function for 32x32 transform blocks. HD gains about 0.3%, STDHD about 0.15% and derf about 0.1%. There's a few negative points here and there that I might want to analyze a little closer. Change-Id: Ibad7c3ddfe1acfc52771dfc27c03e9783e054430
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