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2013-05-22Merge "Make the intra rd search support 8x4/4x8" into experimentalJingning Han
2013-05-22Merge "changes intra coding to be based on txfm block" into experimentalPaul Wilkins
2013-05-22Merge "Generalized intra 4x4 encoding for all sizes" into experimentalPaul Wilkins
2013-05-22Merge "Merge CONFIG_COMP_INTER_JOINT_SEARCH." into experimentalPaul Wilkins
2013-05-22Merge "Removed unused idct functions" into experimentalScott LaVarnway
2013-05-22changes intra coding to be based on txfm blockYaowu Xu
This commit changed the encoding and decoding of intra blocks to be based on transform block. In each prediction block, the intra coding iterates thorough each transform block based on raster scan order. This commit also fixed a bug in D135 prediction code. TODO next: The RD mode/txfm_size selection should take this into account when computing RD values. Change-Id: I6d1be2faa4c4948a52e830b6a9a84a6b2b6850f6
2013-05-22Generalized intra 4x4 encoding for all sizesYaowu Xu
Change-Id: I1b86744fa247233c8df031b3f4b87b212c8dd094
2013-05-22Merge CONFIG_COMP_INTER_JOINT_SEARCH.Paul Wilkins
Merge this experiment so that it is under a speed feature flag not a configuration flag. Change-Id: I536f7f125a4ff5149bb3a64f791e835c324535fd
2013-05-21Make the intra rd search support 8x4/4x8Jingning Han
This commit allows the rate-distortion optimization of intra coding capable of supporting 8x4 and 4x8 partition settings. It enables the entropy coding of intra modes in key frame using a unified contextual probability model conditioned on its above/left prediction modes. Coding performance: derf 0.464% Change-Id: Ieed055084e11fcb64d5d5faeb0e706d30268ba18
2013-05-21Merge "Initial version of alpha channel support" into experimentalJohn Koleszar
2013-05-21Merge "Deprecate 4x4 intra modes from bit-stream" into experimentalJingning Han
2013-05-21Removed unused idct functionsScott LaVarnway
No longer used. Change-Id: Id28c9247cebba183c6fa786dff96824ae100132c
2013-05-21Merging the model coef prob experimentDeb Mukherjee
Merges the experiment. Change-Id: I4eb19af6de6df6aa3a96a2e82f231d47ed9b3ae9
2013-05-21Merge "Refinements on modelcoef expt to reduce storage" into experimentalDeb Mukherjee
2013-05-21Removed diff from macroblockd_planeScott LaVarnway
No longer used. Change-Id: I171c5fa33a7600ad45b9466af23a46ccbdfe0480
2013-05-21Removed vp9_recon functionsScott LaVarnway
No longer used. Change-Id: Ica5166f7117f4693dffdf7633dcfc1b263103d0d
2013-05-21Merge "WIP: 4x4 idct/recon merge" into experimentalScott LaVarnway
2013-05-21Merge "Moving exp. coding functions from vp9_boolhuff.c to vp9_bitstream.c." ↵Dmitry Kovalev
into experimental
2013-05-21Merge "Removing clamp_type from the bitstream." into experimentalDmitry Kovalev
2013-05-21Merge "Adding get_ref_frame_idx function." into experimentalDmitry Kovalev
2013-05-21Refinements on modelcoef expt to reduce storageDeb Mukherjee
Uses more aggrerssive interpolation to reduce storage for the model tables by almost more than half. Only 48 lists of probs are stored (as opposed to 128 before), corresponding to ONE_NODE probabilities of: 1, 3, 7, 11, ..., 115, 119, 127, 135, ..., 247, 255. Besides, only 1 table is used as opposed to 2 before. So the overall memory needed for the tables is just 48 * 8 = 384 bytes. The table currently used is based on a new Pareto distribution with heavier tail than a generalized Gaussian - which improves results on derf by about 0.1% over a single table Generaized Gaussian. Results overall on derfraw300 is -0.14%. Change-Id: I19bd03559cbf5894a9f8594b8023dcc3e546f6bd
2013-05-21Unnecessary passing of prev_miYunqing Wang
Passing prev_mi is not needed. Change-Id: I6453bb47514ddafd555864d190ecf6d1a6bdc136
2013-05-20Moving exp. coding functions from vp9_boolhuff.c to vp9_bitstream.c.Dmitry Kovalev
Change-Id: Ib07d1e707a87cec98ea3a1779fccca078d8c4310
2013-05-20Adding get_ref_frame_idx function.Dmitry Kovalev
Change-Id: I4f1a4eca6794cda78d00512196caacd5567e2dcc
2013-05-20Updating the model coef experimentDeb Mukherjee
Cleans up the experiment. Actually uses reduced counts for backward updates, and reduced number of probabilities in the context. No change in bitstream when the experiment is on. Between expt on and off: derfraw300 is down only -0.062% (which is better than when expts were run previously). Change-Id: I55285a049a0c22810bdb42914212ab5a4f8521b5
2013-05-20Deprecate 4x4 intra modes from bit-streamJingning Han
Replace B_DC_PRED like syntax element writing/reading with sb_ymode set (e.g., DC_PRED, etc). Change-Id: I293006a6b3bcd130c08ea9f053e7a79c6819c6f8
2013-05-20WIP: 4x4 idct/recon mergeScott LaVarnway
This patch eliminates the intermediate diff buffer usage by combining the short idct and the add residual into one function. The encoder can use the same code as well. Change-Id: I296604bf73579c45105de0dd1adbcc91bcc53c22
2013-05-20Merge "Enable bit-stream support to 8x4 and 4x8 partition" into experimentalJingning Han
2013-05-20Give VP9 a different sync code from VP8Jingning Han
The new code is 0x49, 0x83, 0x42 There is nothing particularly special about this code bitstream wise. Its derivation is the word "sync" coded using 4x6bit alphabetic indices. Change-Id: Ie2430a854af32ddc5a5c25a6c1c90cf6497ba647
2013-05-19Enable bit-stream support to 8x4 and 4x8 partitionJingning Han
The recursive partition type search is enabled down to 4x4, 4x8 and 8x4, followed by the corresponding rate-distortion optimization for the per-partition encoding mode decisions. The bit-stream writing/reading synchronized in supporting the rectangular partition of 8x8 block. This provides above 1% coding performance gains on derf. To do next: 1. re-design the rate-distortion loop for inter prediction below 8x8. 2. re-design the rate-distortion loop for intra prediction below 4x4. 3. make the loop-filter aware of rectangular partition of 8x8 block. 4. clean the unused probability models. 5. update default probability values. Change-Id: Idd41a315b16879db08f045a322241f46f1d53f20
2013-05-17Make nmv_count update 4x8/8x4 awareJingning Han
This commit modifies the vp9_update_nmv_count_ to support rectangular partition of 8x8 block. Change-Id: I3e742f80f18f95b031c1c785d756d9365503c24c
2013-05-17Removing clamp_type from the bitstream.Dmitry Kovalev
Change-Id: Ica75bdd4905c4a04b7f92795d0b8ce6836a99ef4
2013-05-17Fix parameters in 4x8 variance calcJingning Han
Correct the stride parameter of 4x8 in vp9_sub_pixel_variance4x8_ and vp9_sub_pixel_avg_variance4x8. Change-Id: I2ca74d4043817503b21737563994270e3b0619ff
2013-05-17Merge "holds utility debugging functions" into experimentalJim Bankoski
2013-05-17Merge "Refactor encode_sb_ for 4x8/8x4 partition" into experimentalJingning Han
2013-05-17Merge "Replace default counts with default probs." into experimentalPaul Wilkins
2013-05-17Merge "New inter mode context." into experimentalPaul Wilkins
2013-05-17Replace default counts with default probs.Paul Wilkins
Replace vp9_kf_default_bmode_counts structure with direct default probabilities. The probability structure is smaller and it removes the need to specify in the bitstream how to convert the counts to probabilities. Note that I have concerns still about the size and value of the large intra mode context. This may cause problems for HW but it also means we rely heavily on reverse update as forwards update of a structure this size is problematic. I intend to review this more generally in the next few days to see if we can come up with a competitive solution that does not rely on such a large context. Change-Id: I0a36071079d5d26a57ab0e9fbf91af4199aa7984
2013-05-17holds utility debugging functionsJim Bankoski
This one prints out a visual version of the partitioning for human eyes to follow... Change-Id: Iba434589a2f55eb069484686d99a382db93b9548
2013-05-17Remove MODE_STATS flag and codePaul Wilkins
Change-Id: I6c70a8a8a4633399842ac74792003ae5f7859ffa
2013-05-16Initial version of alpha channel supportJohn Koleszar
This is a mostly-working implementation of an extra channel in the bitstream. Configure with --enable-alpha to test. Notable TODOs: - Add extra channel to all mismatch tests, PSNR, SSIM, etc - Configurable subsampling - Variable number of planes (currently always uses all 4) - Loop filtering - Per-plane lossless quantizer - ARNR support This implementation just uses the same contents as the Y channel for the A channel, due to lack of content and general pain in playing back 4 channel content. A later patch will use the actual alpha channel passed in from outside the codec. Change-Id: Ibf81f023b1c570bd84b3064e9b4b8ae52e087592
2013-05-16Refactor encode_sb_ for 4x8/8x4 partitionJingning Han
Deprecate set_block_index. Replace it with get_sb_index_ for consistency with partition search and bit-stream writing/reading. Use b_width/height_log2 instead of mi_width/height_log2, to support 4x4 resolution partition types. Change-Id: Ic1e71981e163c669f7ea6b3c12b831c284c4a494
2013-05-16Merge "Use b_width_log2_ in partition type parse" into experimentalJingning Han
2013-05-16Merge "Remove vp9_extend_mb_row()" into experimentalJohn Koleszar
2013-05-16Merge "WIP: 8x8 idct/recon merge" into experimentalScott LaVarnway
2013-05-16Merge "Combining integer and fractional parts of mvs for entropy coding." ↵Dmitry Kovalev
into experimental
2013-05-16Use b_width_log2_ in partition type parseJingning Han
Replace mi_width/height_log2 with b_width/height_log2 in partition type parsing at bit-stream writing stage. This allows parsing resolution at 4x4 block level and makes the 4x4/4x8/8x4 partition coding consistent with other superblock types. Change-Id: I7db3617ea042e0db2dc898999b0c323bff91a22f
2013-05-16Removed Q threshold in the usage of ADSTYaowu Xu
Test on cif set showed small but consistent compression gain for almost all encodings with overall impact of .08%. The gains average aournd .12% combined with D63 adst change. Test encoding on std-hd set is ongoing.. Change-Id: If4d94799cf0486fb9c770b193e5c386d13d99d59
2013-05-16Merge "Removing lossless flag from the bitstream." into experimentalDmitry Kovalev
2013-05-16Remove vp9_extend_mb_row()John Koleszar
This code is no longer needed for correct intra prediction. Change-Id: I822d1a8b0ad0a00e7c4c6e7b2931790c39d1267d
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