summaryrefslogtreecommitdiff
path: root/vp9/encoder
AgeCommit message (Collapse)Author
2013-02-27Merge "Remove unused vp9_copy32xn" into experimentalJohn Koleszar
2013-02-27Merge "Move eob from BLOCKD to MACROBLOCKD." into experimentalRonald S. Bultje
2013-02-27Move eob from BLOCKD to MACROBLOCKD.Ronald S. Bultje
Consistent with VP8. Change-Id: I8c316ee49f072e15abbb033a80e9c36617891f07
2013-02-27Merge "Use ref_frame_map vice active_ref_idx on the encoder" into experimentalJohn Koleszar
2013-02-27Merge "Test upscaling as well as downscaling" into experimentalJohn Koleszar
2013-02-27Remove unused vp9_copy32xnJohn Koleszar
This function was part of an optimization used in VP8 that required caching two macroblocks. This is unused in VP9, and might not survive refactoring to support superblocks, so removing it for now. Change-Id: I744e585206ccc1ef9a402665c33863fc9fb46f0d
2013-02-27Merge "Combined motion compensation with scaled predictors" into experimentalJohn Koleszar
2013-02-27Use ref_frame_map vice active_ref_idx on the encoderJohn Koleszar
This patch makes the encoder's use of ref_frame_map and active_ref_idx consistent with the decoder. ref_frame_map[] maps a reference buffer index to its actual location in the yv12_fb array, since many references may share an underlying buffer. active_ref_idx[] mirrors cpi->{lst,gld,alt}_fb_idx, holding the active references in each slot. This also fixes a bug in setup_buffer_inter() where the incorrect reference was used to populate the scaling factors. Change-Id: Id3728f6d77cffcd27c248903bf51f9c3e594287e
2013-02-27Test upscaling as well as downscalingJohn Koleszar
Fixes a bug in vp9_set_internal_size() that prevented returning to the unscaled state. Updated the ResizeInternalTest to scale both down and up. Added a check that all frames are within 2.5% of the quality of the initial keyframe. Change-Id: I3b7ef17cdac144ed05b9148dce6badfa75cff5c8
2013-02-27Combined motion compensation with scaled predictorsJohn Koleszar
This patch extends the previous support for using references of a different resolution in ZEROMV mode to all inter prediction modes. Subpixel based best-mv scoring is disabled when the reference frame differs in resolution from the current frame. Change-Id: Id4dc3e5e6692de98d9857fd56bfad3ac57e944ac
2013-02-27Merge "Improve 32x32 forward dct" into experimentalYaowu Xu
2013-02-26Spatial resamping of ZEROMV predictorsJohn Koleszar
This patch allows coding frames using references of different resolution, in ZEROMV mode. For compound prediction, either reference may be scaled. To test, I use the resize_test and enable WRITE_RECON_BUFFER in vp9_onyxd_if.c. It's also useful to apply this patch to test/i420_video_source.h: --- a/test/i420_video_source.h +++ b/test/i420_video_source.h @@ -93,6 +93,7 @@ class I420VideoSource : public VideoSource { virtual void FillFrame() { // Read a frame from input_file. + if (frame_ != 3) if (fread(img_->img_data, raw_sz_, 1, input_file_) == 0) { limit_ = frame_; } This forces the frame that the resolution changes on to be coded with no motion, only scaling, and improves the quality of the result. Change-Id: I1ee75d19a437ff801192f767fd02a36bcbd1d496
2013-02-26Merge "Merge cnvcontext experiment." into experimentalRonald S. Bultje
2013-02-26Merge "Fix modes.stt output printf format string." into experimentalRonald S. Bultje
2013-02-26Merge "Minor cosmetics in rdopt." into experimentalRonald S. Bultje
2013-02-26Merge "vp9: promote gf_group_bits calculation to 64-bit" into experimentalJames Zern
2013-02-26Merge "Refactor inter recon functions to support scaling" into experimentalJohn Koleszar
2013-02-26Merge "Changing pitch value meaning for fht and iht transforms." into ↵Dmitry Kovalev
experimental
2013-02-26Merge cnvcontext experiment.Ronald S. Bultje
Change-Id: I35e64998b25694a3bb4a62164bba3c03c1db4bc7
2013-02-26Fix modes.stt output printf format string.Ronald S. Bultje
Change-Id: I17e2d2f6a4da86d9e4af7bebdea0bf5d154da084
2013-02-26Minor cosmetics in rdopt.Ronald S. Bultje
Change-Id: I62497dcf2074b4bb4787bf660e727e5cf1bf3472
2013-02-26Merge "make cost_coeffs to use combined context" into experimentalRonald S. Bultje
2013-02-26Refactor inter recon functions to support scalingJohn Koleszar
Ensure that all inter prediction goes through a common code path that takes scaling into account. Removes a bunch of duplicate 1st/2nd predictor code. Also introduces a 16x8 mode for 8x8 MVs, similar to the 8x4 trick we were doing before. This has an unexpected effect with EIGHTTAP_SMOOTH, so it's disabled in that case for now. Change-Id: Ia053e823a8bc616a988a0af30452e1e75a739cba
2013-02-26Improve 32x32 forward dctYaowu Xu
The commit improves the 32x32 forward dct implementation: 1. change to use same constants and rounding as other forward dcts 2. select rounding to specifically minimize the roundtrip error, which improved average 19/block to .77/block using 100000 random input. Test showed a small but consistent gain on all test sets, about .15% Change-Id: If0afd6a71880a522f60c1c234be0462092c2eb53
2013-02-25Changing pitch value meaning for fht and iht transforms.Dmitry Kovalev
Pitch now means the number of elements, not the number of bytes. Change-Id: Idb9f2f012e39b09d596a3cc1802305a80b7c13af
2013-02-25make cost_coeffs to use combined contextYaowu Xu
Change-Id: Ia15f4244595fab49bffda0c651a750a8a9481d28
2013-02-25Merge "Improving the forward 16x16 ADST/DCT accuracy" into experimentalJingning Han
2013-02-25vp9: promote gf_group_bits calculation to 64-bitJames Zern
avoids signed integer overflow Change-Id: I9ffcdba90b21edb324d1b173fd11d613e0592931
2013-02-25Merge "Minor rate control refactoring and experiments." into experimentalPaul Wilkins
2013-02-25Improving the forward 16x16 ADST/DCT accuracyJingning Han
Increase the first stage dynamic range by 4 times, and reduce it back with proper rounding before applying the second stage. Hence it still fits in the given dynamic range and slightly improves the key frame coding performance. Change-Id: Ia4c5907446f20a95dc3de079c314b3ad1221d8aa
2013-02-25clean up forward and inverse hybrid transformJingning Han
Rebased. Remove the old matrix multiplication transform computation. The 16x16 ADST/DCT can be switched on/off and evaluated by setting ACTIVE_HT16 300/0 in vp9/common/vp9_blockd.h. Change-Id: Icab2dbd18538987e1dc4e88c45abfc4cfc6e133f
2013-02-25Minor rate control refactoring and experiments.Paul Wilkins
Some minor refactoring code relating to estimates of bits per MB at a given Q and estimating the allowed Q range. Most of the changes here were included in a previous commit. This commit seeks to separate out the refactoring from more the material changes. Two #define control flags have been added for experimentation. ONE_SHOT_Q_ESTIMATE force the two pass encoder to use its initial Q range estimate for the whole clip even if this results in a miss on the target data rate. In effect this tightens the Q range seen at the expense of rate control accuracy. DISABLE_RC_LONG_TERM_MEM is a related flag that disables the long term memory in the rate control. Local adjustments are still made to try and better hit the rate target on a per frame basis but the impact of rate control misses is not propagated to the remainder of the clip. This means that for example an overshoot early on will not cause frames later in the clip to be starved of bits. Again the result of this relaxation amy be less rate control accuracy especially on short clips. The flags are disabled by default for now. Change-Id: I7482f980146d8ea033b5d50cc689f772e4bd119e
2013-02-25optimize forward 16x16 DCT for accuracyYaowu Xu
This commit added pre/post scaling for first half of fDCT16x16 to reduce error, by simulation of 100,000 blocks for random inputs, the average sse reduced from 2.1/block to 0.0498/block. also enabled tests for 16x16 fDCT and iDCT Change-Id: Id2a95f0464c6dd4118797d456237ae90274c0f02
2013-02-23Split coefficient token tables intra vs. inter.Ronald S. Bultje
Change-Id: I5416455f8f129ca0f450d00e48358d2012605072
2013-02-23Further changes to coefficient contexts.Paul Wilkins
This patch alters the balance of context between the coefficient bands (reflecting the position of coefficients within a transform blocks) and the energy of the previous token (or tokens) within a block. In this case the number of coefficient bands is reduced but more previous token energy bands are supported. Some initial rebalancing of the default tables has been by running multiple derf clips at multiple data rates using the ENTOPY_STATS macro. Further balancing needs to be done using larger image formatsd especially in regard to the bigger transform sizes which are not as well represented in encodings of smaller image formats. Change-Id: If9736e95c391e711b04aef6393d26f60f36e1f8a
2013-02-22Merge "optimize 8x8 fdct rounding for accuracy" into experimentalYaowu Xu
2013-02-22optimize 8x8 fdct rounding for accuracyYaowu Xu
The commit added a final rounding choice for 8x8 forward dct to get rid of a sign bias at DC position and improve the accuracry in term of round trip error for 8x8 fDCT/iDCT. This commit also enabled forward 8x8 dct test. Change-Id: Ib67f99b0a24d513e230c7812bc04569d472fdc50
2013-02-22Merge "Code cleanup." into experimentalJohn Koleszar
2013-02-22Code cleanup.Dmitry Kovalev
Removing redundant 'extern' keywords and parentheses, fixing indentation, making variable names lower case, using short expressions x *= c instead of x = x * c, minor code simplifications. Change-Id: If6a25fcf306d1db26e90d27e3c24a32735c607de
2013-02-22Merge "Forward butterfly hybrid transform" into experimentalJingning Han
2013-02-22Merge "Experimental removal of over quant code" into experimentalPaul Wilkins
2013-02-22Experimental removal of over quant codePaul Wilkins
The over quant code was added in VP8 post bitstream freeze to allow compression to lower data rates In VP9 the real qualtizer range has been greatly extended anyway. Change-Id: I5d384fa5e9a83ef75a3df34ee30627bd21901526
2013-02-21Forward butterfly hybrid transformJingning Han
This patch includes 4x4, 8x8, and 16x16 forward butterfly ADST/DCT hybrid transform. The kernel of 4x4 ADST is sin((2k+1)*(n+1)/(2N+1)). The kernel of 8x8/16x16 ADST is of the form sin((2k+1)*(2n+1)/4N). Change-Id: I8f1ab3843ce32eb287ab766f92e0611e1c5cb4c1
2013-02-21Code cleanup.Dmitry Kovalev
Removing redundant 'extern' keywords. Moving VP9DX_BOOL_DECODER from .h to .c file. Change-Id: I5a3056cb3d33db7ed3c3f4629675aa8e21014e66
2013-02-21Merge "Code cleanup." into experimentalJohn Koleszar
2013-02-21Code cleanup.Dmitry Kovalev
Removing redundant 'extern' keyword from function declarations and making function arguments lower case. Change-Id: Idae9a2183b067f2b6c85ad84738d275e8bbff9d9
2013-02-21Merge "Refactoring of switchable filter search for speed" into experimentalDeb Mukherjee
2013-02-20Refactoring of switchable filter search for speedDeb Mukherjee
Refactors the switchable filter search in the rd loop to improve encode speed. Uses a piecewise approximation to a closed form expression to estimate rd cost for a Laplacian source with a given variance and quantization step-size. About 40% encode time reduction is achieved. Results (on a feb 12 baseline) show a slight drop: derf: -0.019% yt: +0.010% std-hd: -0.162% hd: -0.050% Change-Id: Ie861badf5bba1e3b1052e29a0ef1b7e256edbcd0
2013-02-20Merge "Fixed the buffer overflow issue" into experimentalJingning Han
2013-02-20Fixed the buffer overflow issueJingning Han
The issue that potentially broke the encoding process was due to the fact that the length of token link is calculated from the total number of tokens coded, while it is possible, in high bit-rate setting, this length is greater than the buffer length initially assigned to the cpi->tok. This patch increases the initially allocated buffer length assigned to cpi->tok from (mb_rows * mb_cols * 24 * 16) to (mb_rows * mb_cols * (1 + 24 * 16)). It resolves the buffer overflow problem. Change-Id: I8661a8d39ea0a3c24303e3f71a170787a1d5b1df
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-13 07:28:39 +0000