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Diffstat (limited to 'webrtc/modules/video_coding/main/source/qm_select_data.h')
-rw-r--r-- | webrtc/modules/video_coding/main/source/qm_select_data.h | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/webrtc/modules/video_coding/main/source/qm_select_data.h b/webrtc/modules/video_coding/main/source/qm_select_data.h deleted file mode 100644 index dc6bce4811..0000000000 --- a/webrtc/modules/video_coding/main/source/qm_select_data.h +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Copyright (c) 2012 The WebRTC 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 WEBRTC_MODULES_VIDEO_CODING_SOURCE_QM_SELECT_DATA_H_ -#define WEBRTC_MODULES_VIDEO_CODING_SOURCE_QM_SELECT_DATA_H_ - -/*************************************************************** -*QMSelectData.h -* This file includes parameters for content-aware media optimization -****************************************************************/ - -#include "webrtc/typedefs.h" - -namespace webrtc { -// -// PARAMETERS FOR RESOLUTION ADAPTATION -// - -// Initial level of buffer in secs. -const float kInitBufferLevel = 0.5f; - -// Threshold of (max) buffer size below which we consider too low (underflow). -const float kPercBufferThr = 0.10f; - -// Threshold on the occurrences of low buffer levels. -const float kMaxBufferLow = 0.30f; - -// Threshold on rate mismatch. -const float kMaxRateMisMatch = 0.5f; - -// Threshold on amount of under/over encoder shooting. -const float kRateOverShoot = 0.75f; -const float kRateUnderShoot = 0.75f; - -// Factor to favor weighting the average rates with the current/last data. -const float kWeightRate = 0.70f; - -// Factor for transitional rate for going back up in resolution. -const float kTransRateScaleUpSpatial = 1.25f; -const float kTransRateScaleUpTemp = 1.25f; -const float kTransRateScaleUpSpatialTemp = 1.25f; - -// Threshold on packet loss rate, above which favor resolution reduction. -const float kPacketLossThr = 0.1f; - -// Factor for reducing transitional bitrate under packet loss. -const float kPacketLossRateFac = 1.0f; - -// Maximum possible transitional rate for down-sampling: -// (units in kbps), for 30fps. -const uint16_t kMaxRateQm[9] = { - 0, // QCIF - 50, // kHCIF - 125, // kQVGA - 200, // CIF - 280, // HVGA - 400, // VGA - 700, // QFULLHD - 1000, // WHD - 1500 // FULLHD -}; - -// Frame rate scale for maximum transition rate. -const float kFrameRateFac[4] = { - 0.5f, // Low - 0.7f, // Middle level 1 - 0.85f, // Middle level 2 - 1.0f, // High -}; - -// Scale for transitional rate: based on content class -// motion=L/H/D,spatial==L/H/D: for low, high, middle levels -const float kScaleTransRateQm[18] = { - // VGA and lower - 0.40f, // L, L - 0.50f, // L, H - 0.40f, // L, D - 0.60f, // H ,L - 0.60f, // H, H - 0.60f, // H, D - 0.50f, // D, L - 0.50f, // D, D - 0.50f, // D, H - - // over VGA - 0.40f, // L, L - 0.50f, // L, H - 0.40f, // L, D - 0.60f, // H ,L - 0.60f, // H, H - 0.60f, // H, D - 0.50f, // D, L - 0.50f, // D, D - 0.50f, // D, H -}; - -// Threshold on the target rate relative to transitional rate. -const float kFacLowRate = 0.5f; - -// Action for down-sampling: -// motion=L/H/D,spatial==L/H/D, for low, high, middle levels; -// rate = 0/1/2, for target rate state relative to transition rate. -const uint8_t kSpatialAction[27] = { -// rateClass = 0: - 1, // L, L - 1, // L, H - 1, // L, D - 4, // H ,L - 1, // H, H - 4, // H, D - 4, // D, L - 1, // D, H - 2, // D, D - -// rateClass = 1: - 1, // L, L - 1, // L, H - 1, // L, D - 2, // H ,L - 1, // H, H - 2, // H, D - 2, // D, L - 1, // D, H - 2, // D, D - -// rateClass = 2: - 1, // L, L - 1, // L, H - 1, // L, D - 2, // H ,L - 1, // H, H - 2, // H, D - 2, // D, L - 1, // D, H - 2, // D, D -}; - -const uint8_t kTemporalAction[27] = { -// rateClass = 0: - 3, // L, L - 2, // L, H - 2, // L, D - 1, // H ,L - 3, // H, H - 1, // H, D - 1, // D, L - 2, // D, H - 1, // D, D - -// rateClass = 1: - 3, // L, L - 3, // L, H - 3, // L, D - 1, // H ,L - 3, // H, H - 1, // H, D - 1, // D, L - 3, // D, H - 1, // D, D - -// rateClass = 2: - 1, // L, L - 3, // L, H - 3, // L, D - 1, // H ,L - 3, // H, H - 1, // H, D - 1, // D, L - 3, // D, H - 1, // D, D -}; - -// Control the total amount of down-sampling allowed. -const float kMaxSpatialDown = 8.0f; -const float kMaxTempDown = 3.0f; -const float kMaxTotalDown = 9.0f; - -// Minimum image size for a spatial down-sampling. -const int kMinImageSize = 176 * 144; - -// Minimum frame rate for temporal down-sampling: -// no frame rate reduction if incomingFrameRate <= MIN_FRAME_RATE. -const int kMinFrameRate = 8; - -// -// PARAMETERS FOR FEC ADJUSTMENT: TODO (marpan) -// - -// -// PARAMETETS FOR SETTING LOW/HIGH STATES OF CONTENT METRICS: -// - -// Thresholds for frame rate: -const int kLowFrameRate = 10; -const int kMiddleFrameRate = 15; -const int kHighFrameRate = 25; - -// Thresholds for motion: motion level is from NFD. -const float kHighMotionNfd = 0.075f; -const float kLowMotionNfd = 0.03f; - -// Thresholds for spatial prediction error: -// this is applied on the average of (2x2,1x2,2x1). -const float kHighTexture = 0.035f; -const float kLowTexture = 0.020f; - -// Used to reduce thresholds for larger/HD scenes: correction factor since -// higher correlation in HD scenes means lower spatial prediction error. -const float kScaleTexture = 0.9f; - -// Percentage reduction in transitional bitrate for 2x2 selected over 1x2/2x1. -const float kRateRedSpatial2X2 = 0.6f; - -const float kSpatialErr2x2VsHoriz = 0.1f; // percentage to favor 2x2 over H -const float kSpatialErr2X2VsVert = 0.1f; // percentage to favor 2x2 over V -const float kSpatialErrVertVsHoriz = 0.1f; // percentage to favor H over V - -} // namespace webrtc - -#endif // WEBRTC_MODULES_VIDEO_CODING_SOURCE_QM_SELECT_DATA_H_ |