Index: source/libvpx/vp9/encoder/vp9_speed_features.h |
=================================================================== |
--- source/libvpx/vp9/encoder/vp9_speed_features.h (revision 0) |
+++ source/libvpx/vp9/encoder/vp9_speed_features.h (revision 0) |
@@ -0,0 +1,359 @@ |
+/* |
+ * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. An additional intellectual property rights grant can be found |
+ * in the file PATENTS. All contributing project authors may |
+ * be found in the AUTHORS file in the root of the source tree. |
+ */ |
+ |
+#ifndef VP9_ENCODER_VP9_SPEED_FEATURES_H_ |
+#define VP9_ENCODER_VP9_SPEED_FEATURES_H_ |
+ |
+#include "vp9/common/vp9_enums.h" |
+ |
+#ifdef __cplusplus |
+extern "C" { |
+#endif |
+ |
+typedef enum { |
+ DIAMOND = 0, |
+ NSTEP = 1, |
+ HEX = 2, |
+ BIGDIA = 3, |
+ SQUARE = 4, |
+ FAST_HEX = 5, |
+ FAST_DIAMOND = 6 |
+} SEARCH_METHODS; |
+ |
+typedef enum { |
+ // No recode. |
+ DISALLOW_RECODE = 0, |
+ // Allow recode for KF and exceeding maximum frame bandwidth. |
+ ALLOW_RECODE_KFMAXBW = 1, |
+ // Allow recode only for KF/ARF/GF frames. |
+ ALLOW_RECODE_KFARFGF = 2, |
+ // Allow recode for all frames based on bitrate constraints. |
+ ALLOW_RECODE = 3, |
+} RECODE_LOOP_TYPE; |
+ |
+typedef enum { |
+ SUBPEL_TREE = 0, |
+ // Other methods to come |
+} SUBPEL_SEARCH_METHODS; |
+ |
+typedef enum { |
+ LAST_FRAME_PARTITION_OFF = 0, |
+ LAST_FRAME_PARTITION_LOW_MOTION = 1, |
+ LAST_FRAME_PARTITION_ALL = 2 |
+} LAST_FRAME_PARTITION_METHOD; |
+ |
+typedef enum { |
+ USE_FULL_RD = 0, |
+ USE_LARGESTINTRA, |
+ USE_LARGESTINTRA_MODELINTER, |
+ USE_LARGESTALL |
+} TX_SIZE_SEARCH_METHOD; |
+ |
+typedef enum { |
+ NOT_IN_USE = 0, |
+ RELAXED_NEIGHBORING_MIN_MAX = 1, |
+ STRICT_NEIGHBORING_MIN_MAX = 2 |
+} AUTO_MIN_MAX_MODE; |
+ |
+typedef enum { |
+ // Try the full image with different values. |
+ LPF_PICK_FROM_FULL_IMAGE, |
+ // Try a small portion of the image with different values. |
+ LPF_PICK_FROM_SUBIMAGE, |
+ // Estimate the level based on quantizer and frame type |
+ LPF_PICK_FROM_Q, |
+} LPF_PICK_METHOD; |
+ |
+typedef enum { |
+ // Terminate search early based on distortion so far compared to |
+ // qp step, distortion in the neighborhood of the frame, etc. |
+ FLAG_EARLY_TERMINATE = 1 << 0, |
+ |
+ // Skips comp inter modes if the best so far is an intra mode. |
+ FLAG_SKIP_COMP_BESTINTRA = 1 << 1, |
+ |
+ // Skips comp inter modes if the best single intermode so far does |
+ // not have the same reference as one of the two references being |
+ // tested. |
+ FLAG_SKIP_COMP_REFMISMATCH = 1 << 2, |
+ |
+ // Skips oblique intra modes if the best so far is an inter mode. |
+ FLAG_SKIP_INTRA_BESTINTER = 1 << 3, |
+ |
+ // Skips oblique intra modes at angles 27, 63, 117, 153 if the best |
+ // intra so far is not one of the neighboring directions. |
+ FLAG_SKIP_INTRA_DIRMISMATCH = 1 << 4, |
+ |
+ // Skips intra modes other than DC_PRED if the source variance is small |
+ FLAG_SKIP_INTRA_LOWVAR = 1 << 5, |
+} MODE_SEARCH_SKIP_LOGIC; |
+ |
+typedef enum { |
+ // Search partitions using RD/NONRD criterion |
+ SEARCH_PARTITION = 0, |
+ |
+ // Always use a fixed size partition |
+ FIXED_PARTITION = 1, |
+ |
+ // Use a fixed size partition in every 64X64 SB, where the size is |
+ // determined based on source variance |
+ VAR_BASED_FIXED_PARTITION = 2, |
+ |
+ REFERENCE_PARTITION = 3, |
+ |
+ // Use an arbitrary partitioning scheme based on source variance within |
+ // a 64X64 SB |
+ VAR_BASED_PARTITION, |
+ |
+ // Use non-fixed partitions based on source variance |
+ SOURCE_VAR_BASED_PARTITION |
+} PARTITION_SEARCH_TYPE; |
+ |
+typedef enum { |
+ // Does a dry run to see if any of the contexts need to be updated or not, |
+ // before the final run. |
+ TWO_LOOP = 0, |
+ |
+ // No dry run conducted. |
+ ONE_LOOP = 1, |
+ |
+ // No dry run, also only half the coef contexts and bands are updated. |
+ // The rest are not updated at all. |
+ ONE_LOOP_REDUCED = 2 |
+} FAST_COEFF_UPDATE; |
+ |
+typedef struct { |
+ // Frame level coding parameter update |
+ int frame_parameter_update; |
+ |
+ // Motion search method (Diamond, NSTEP, Hex, Big Diamond, Square, etc). |
+ SEARCH_METHODS search_method; |
+ |
+ RECODE_LOOP_TYPE recode_loop; |
+ |
+ // Subpel_search_method can only be subpel_tree which does a subpixel |
+ // logarithmic search that keeps stepping at 1/2 pixel units until |
+ // you stop getting a gain, and then goes on to 1/4 and repeats |
+ // the same process. Along the way it skips many diagonals. |
+ SUBPEL_SEARCH_METHODS subpel_search_method; |
+ |
+ // Maximum number of steps in logarithmic subpel search before giving up. |
+ int subpel_iters_per_step; |
+ |
+ // Control when to stop subpel search |
+ int subpel_force_stop; |
+ |
+ // This parameter controls the number of steps we'll do in a diamond |
+ // search. |
+ int max_step_search_steps; |
+ |
+ // This parameter controls which step in the n-step process we start at. |
+ // It's changed adaptively based on circumstances. |
+ int reduce_first_step_size; |
+ |
+ // If this is set to 1, we limit the motion search range to 2 times the |
+ // largest motion vector found in the last frame. |
+ int auto_mv_step_size; |
+ |
+ // Trellis (dynamic programming) optimization of quantized values (+1, 0). |
+ int optimize_coefficients; |
+ |
+ // Always set to 0. If on it enables 0 cost background transmission |
+ // (except for the initial transmission of the segmentation). The feature is |
+ // disabled because the addition of very large block sizes make the |
+ // backgrounds very to cheap to encode, and the segmentation we have |
+ // adds overhead. |
+ int static_segmentation; |
+ |
+ // If 1 we iterate finding a best reference for 2 ref frames together - via |
+ // a log search that iterates 4 times (check around mv for last for best |
+ // error of combined predictor then check around mv for alt). If 0 we |
+ // we just use the best motion vector found for each frame by itself. |
+ int comp_inter_joint_search_thresh; |
+ |
+ // This variable is used to cap the maximum number of times we skip testing a |
+ // mode to be evaluated. A high value means we will be faster. |
+ int adaptive_rd_thresh; |
+ |
+ // Enables skipping the reconstruction step (idct, recon) in the |
+ // intermediate steps assuming the last frame didn't have too many intra |
+ // blocks and the q is less than a threshold. |
+ int skip_encode_sb; |
+ int skip_encode_frame; |
+ // Speed feature to allow or disallow skipping of recode at block |
+ // level within a frame. |
+ int allow_skip_recode; |
+ |
+ // This variable allows us to reuse the last frames partition choices |
+ // (64x64 v 32x32 etc) for this frame. It can be set to only use the last |
+ // frame as a starting point in low motion scenes or always use it. If set |
+ // we use last partitioning_redo frequency to determine how often to redo |
+ // the partitioning from scratch. Adjust_partitioning_from_last_frame |
+ // enables us to adjust up or down one partitioning from the last frames |
+ // partitioning. |
+ LAST_FRAME_PARTITION_METHOD use_lastframe_partitioning; |
+ |
+ // Determine which method we use to determine transform size. We can choose |
+ // between options like full rd, largest for prediction size, largest |
+ // for intra and model coefs for the rest. |
+ TX_SIZE_SEARCH_METHOD tx_size_search_method; |
+ |
+ // Low precision 32x32 fdct keeps everything in 16 bits and thus is less |
+ // precise but significantly faster than the non lp version. |
+ int use_lp32x32fdct; |
+ |
+ // TODO(JBB): remove this as its no longer used. |
+ |
+ // After looking at the first set of modes (set by index here), skip |
+ // checking modes for reference frames that don't match the reference frame |
+ // of the best so far. |
+ int mode_skip_start; |
+ |
+ // TODO(JBB): Remove this. |
+ int reference_masking; |
+ |
+ PARTITION_SEARCH_TYPE partition_search_type; |
+ |
+ // Used if partition_search_type = FIXED_SIZE_PARTITION |
+ BLOCK_SIZE always_this_block_size; |
+ |
+ // Skip rectangular partition test when partition type none gives better |
+ // rd than partition type split. |
+ int less_rectangular_check; |
+ |
+ // Disable testing non square partitions. (eg 16x32) |
+ int use_square_partition_only; |
+ |
+ // Sets min and max partition sizes for this 64x64 region based on the |
+ // same 64x64 in last encoded frame, and the left and above neighbor. |
+ AUTO_MIN_MAX_MODE auto_min_max_partition_size; |
+ |
+ // Min and max partition size we enable (block_size) as per auto |
+ // min max, but also used by adjust partitioning, and pick_partitioning. |
+ BLOCK_SIZE min_partition_size; |
+ BLOCK_SIZE max_partition_size; |
+ |
+ // Whether or not we allow partitions one smaller or one greater than the last |
+ // frame's partitioning. Only used if use_lastframe_partitioning is set. |
+ int adjust_partitioning_from_last_frame; |
+ |
+ // How frequently we re do the partitioning from scratch. Only used if |
+ // use_lastframe_partitioning is set. |
+ int last_partitioning_redo_frequency; |
+ |
+ // This enables constrained copy partitioning, which, given an input block |
+ // size bsize, will copy previous partition for partitions less than bsize, |
+ // otherwise bsize partition is used. bsize is currently set to 16x16. |
+ // Used for the case where motion is detected in superblock. |
+ int constrain_copy_partition; |
+ |
+ // Disables sub 8x8 blocksizes in different scenarios: Choices are to disable |
+ // it always, to allow it for only Last frame and Intra, disable it for all |
+ // inter modes or to enable it always. |
+ int disable_split_mask; |
+ |
+ // TODO(jingning): combine the related motion search speed features |
+ // This allows us to use motion search at other sizes as a starting |
+ // point for this motion search and limits the search range around it. |
+ int adaptive_motion_search; |
+ |
+ // Allows sub 8x8 modes to use the prediction filter that was determined |
+ // best for 8x8 mode. If set to 0 we always re check all the filters for |
+ // sizes less than 8x8, 1 means we check all filter modes if no 8x8 filter |
+ // was selected, and 2 means we use 8 tap if no 8x8 filter mode was selected. |
+ int adaptive_pred_interp_filter; |
+ |
+ // Search through variable block partition types in non-RD mode decision |
+ // encoding process for RTC. |
+ int partition_check; |
+ |
+ // Use finer quantizer in every other few frames that run variable block |
+ // partition type search. |
+ int force_frame_boost; |
+ |
+ // Maximally allowed base quantization index fluctuation. |
+ int max_delta_qindex; |
+ |
+ // Implements various heuristics to skip searching modes |
+ // The heuristics selected are based on flags |
+ // defined in the MODE_SEARCH_SKIP_HEURISTICS enum |
+ unsigned int mode_search_skip_flags; |
+ |
+ // A source variance threshold below which the split mode is disabled |
+ unsigned int disable_split_var_thresh; |
+ |
+ // A source variance threshold below which filter search is disabled |
+ // Choose a very large value (UINT_MAX) to use 8-tap always |
+ unsigned int disable_filter_search_var_thresh; |
+ |
+ // These bit masks allow you to enable or disable intra modes for each |
+ // transform size separately. |
+ int intra_y_mode_mask[TX_SIZES]; |
+ int intra_uv_mode_mask[TX_SIZES]; |
+ |
+ // This variable enables an early break out of mode testing if the model for |
+ // rd built from the prediction signal indicates a value that's much |
+ // higher than the best rd we've seen so far. |
+ int use_rd_breakout; |
+ |
+ // This enables us to use an estimate for intra rd based on dc mode rather |
+ // than choosing an actual uv mode in the stage of encoding before the actual |
+ // final encode. |
+ int use_uv_intra_rd_estimate; |
+ |
+ // This feature controls how the loop filter level is determined. |
+ LPF_PICK_METHOD lpf_pick; |
+ |
+ // This feature limits the number of coefficients updates we actually do |
+ // by only looking at counts from 1/2 the bands. |
+ FAST_COEFF_UPDATE use_fast_coef_updates; |
+ |
+ // This flag controls the use of non-RD mode decision. |
+ int use_nonrd_pick_mode; |
+ |
+ // This variable sets the encode_breakout threshold. Currently, it is only |
+ // enabled in real time mode. |
+ int encode_breakout_thresh; |
+ |
+ // A binary mask indicating if NEARESTMV, NEARMV, ZEROMV, NEWMV |
+ // modes are disabled in order from LSB to MSB for each BLOCK_SIZE. |
+ int disable_inter_mode_mask[BLOCK_SIZES]; |
+ |
+ // This feature controls whether we do the expensive context update and |
+ // calculation in the rd coefficient costing loop. |
+ int use_fast_coef_costing; |
+ |
+ // This feature controls the tolerence vs target used in deciding whether to |
+ // recode a frame. It has no meaning if recode is disabled. |
+ int recode_tolerance; |
+ |
+ // This variable controls the maximum block size where intra blocks can be |
+ // used in inter frames. |
+ // TODO(aconverse): Fold this into one of the other many mode skips |
+ BLOCK_SIZE max_intra_bsize; |
+ |
+ // The frequency that we check if SOURCE_VAR_BASED_PARTITION or |
+ // FIXED_PARTITION search type should be used. |
+ int search_type_check_frequency; |
+ |
+ // The threshold used in SOURCE_VAR_BASED_PARTITION search type. |
+ int source_var_thresh; |
+} SPEED_FEATURES; |
+ |
+struct VP9_COMP; |
+ |
+void vp9_set_speed_features(struct VP9_COMP *cpi); |
+ |
+#ifdef __cplusplus |
+} // extern "C" |
+#endif |
+ |
+#endif // VP9_ENCODER_VP9_SPEED_FEATURES_H_ |
+ |