VideoDecimator.smali

.class public Lio/agora/base/internal/video/VideoDecimator;
.super Ljava/lang/Object;
.source "VideoDecimator.java"


# static fields
.field private static FrameCountHistorySize:I = 0x5a

.field private static FrameShitoryWindowMs:I = 0x7d0

.field private static final TAG:Ljava/lang/String; = "VideoDecimator"


# instance fields
.field private dropCount:I

.field private dropNextFrame:Z

.field private enableTemoralDecimation:Z

.field private incomingFrameRate:F

.field private incomingFrameTimes:[J

.field private keepCount:I

.field private maxFrameRate:I

.field private overshootModifier:F

.field private targetFrameRate:F


# direct methods
.method static constructor <clinit>()V
    .registers 0

    return-void
.end method

.method public constructor <init>()V
    .registers 2

    .line 19
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    const/16 v0, 0x5a

    .line 12
    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->maxFrameRate:I

    const/4 v0, 0x1

    .line 14
    iput-boolean v0, p0, Lio/agora/base/internal/video/VideoDecimator;->enableTemoralDecimation:Z

    const/4 v0, 0x0

    .line 15
    iput-boolean v0, p0, Lio/agora/base/internal/video/VideoDecimator;->dropNextFrame:Z

    .line 20
    sget v0, Lio/agora/base/internal/video/VideoDecimator;->FrameCountHistorySize:I

    new-array v0, v0, [J

    iput-object v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    return-void
.end method

.method private processIncomingFramerate(J)V
    .registers 13

    const/4 v0, 0x1

    const/4 v1, 0x0

    move v2, v0

    .line 148
    :goto_3
    sget v3, Lio/agora/base/internal/video/VideoDecimator;->FrameCountHistorySize:I

    sub-int/2addr v3, v0

    const-wide/16 v4, 0x0

    if-ge v2, v3, :cond_23

    .line 149
    iget-object v3, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    aget-wide v6, v3, v2

    cmp-long v6, v6, v4

    if-lez v6, :cond_23

    aget-wide v6, v3, v2

    sub-long v6, p1, v6

    sget v3, Lio/agora/base/internal/video/VideoDecimator;->FrameShitoryWindowMs:I

    int-to-long v8, v3

    cmp-long v3, v6, v8

    if-lez v3, :cond_1e

    goto :goto_23

    :cond_1e
    add-int/lit8 v1, v1, 0x1

    add-int/lit8 v2, v2, 0x1

    goto :goto_3

    :cond_23
    :goto_23
    const/high16 v3, 0x3f800000    # 1.0f

    if-le v2, v0, :cond_3d

    .line 156
    iget-object v6, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    sub-int/2addr v2, v0

    aget-wide v7, v6, v2

    sub-long/2addr p1, v7

    .line 157
    iput v3, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    cmp-long v0, p1, v4

    if-lez v0, :cond_41

    int-to-float v0, v1

    const/high16 v1, 0x447a0000    # 1000.0f

    mul-float/2addr v0, v1

    long-to-float p1, p1

    mul-float/2addr p1, v3

    div-float/2addr v0, p1

    .line 159
    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    goto :goto_41

    :cond_3d
    int-to-float p1, v1

    mul-float/2addr p1, v3

    .line 162
    iput p1, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    :cond_41
    :goto_41
    return-void
.end method


# virtual methods
.method public decimatedFramerate()I
    .registers 3

    .line 124
    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J

    move-result-wide v0

    invoke-direct {p0, v0, v1}, Lio/agora/base/internal/video/VideoDecimator;->processIncomingFramerate(J)V

    .line 125
    iget-boolean v0, p0, Lio/agora/base/internal/video/VideoDecimator;->enableTemoralDecimation:Z

    if-nez v0, :cond_12

    .line 126
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    invoke-static {v0}, Ljava/lang/Math;->round(F)I

    move-result v0

    return v0

    .line 128
    :cond_12
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    float-to-int v0, v0

    iget v1, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    invoke-static {v1}, Ljava/lang/Math;->round(F)I

    move-result v1

    invoke-static {v0, v1}, Ljava/lang/Math;->min(II)I

    move-result v0

    return v0
.end method

.method public dropFrame()Z
    .registers 8

    .line 67
    iget-boolean v0, p0, Lio/agora/base/internal/video/VideoDecimator;->enableTemoralDecimation:Z

    const/4 v1, 0x0

    if-nez v0, :cond_6

    return v1

    .line 69
    :cond_6
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    const/4 v2, 0x0

    cmpg-float v3, v0, v2

    if-gtz v3, :cond_e

    return v1

    .line 71
    :cond_e
    invoke-static {v0}, Ljava/lang/Math;->round(F)I

    move-result v0

    .line 72
    iget v3, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    cmpl-float v4, v3, v2

    const/4 v5, 0x1

    if-nez v4, :cond_1a

    return v5

    :cond_1a
    int-to-float v4, v0

    cmpl-float v6, v4, v3

    if-lez v6, :cond_64

    .line 76
    iget v6, p0, Lio/agora/base/internal/video/VideoDecimator;->overshootModifier:F

    sub-float/2addr v4, v3

    add-float/2addr v6, v4

    float-to-int v4, v6

    if-gez v4, :cond_29

    .line 79
    iput v2, p0, Lio/agora/base/internal/video/VideoDecimator;->overshootModifier:F

    move v4, v1

    :cond_29
    if-eqz v4, :cond_4b

    mul-int/lit8 v2, v4, 0x2

    if-ge v2, v0, :cond_4b

    .line 82
    iget v2, p0, Lio/agora/base/internal/video/VideoDecimator;->dropCount:I

    if-eqz v2, :cond_36

    .line 83
    iput v1, p0, Lio/agora/base/internal/video/VideoDecimator;->dropCount:I

    return v5

    .line 87
    :cond_36
    div-int v2, v0, v4

    .line 88
    iget v3, p0, Lio/agora/base/internal/video/VideoDecimator;->keepCount:I

    if-le v3, v2, :cond_47

    .line 90
    rem-int/2addr v0, v4

    neg-int v0, v0

    int-to-float v0, v0

    const/high16 v1, 0x40400000    # 3.0f

    div-float/2addr v0, v1

    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->overshootModifier:F

    .line 91
    iput v5, p0, Lio/agora/base/internal/video/VideoDecimator;->keepCount:I

    goto :goto_58

    :cond_47
    add-int/2addr v3, v5

    .line 93
    iput v3, p0, Lio/agora/base/internal/video/VideoDecimator;->keepCount:I

    goto :goto_64

    .line 96
    :cond_4b
    iput v1, p0, Lio/agora/base/internal/video/VideoDecimator;->keepCount:I

    int-to-float v0, v4

    div-float v2, v0, v3

    float-to-int v2, v2

    .line 98
    iget v4, p0, Lio/agora/base/internal/video/VideoDecimator;->dropCount:I

    if-ge v4, v2, :cond_5a

    add-int/2addr v4, v5

    .line 100
    iput v4, p0, Lio/agora/base/internal/video/VideoDecimator;->dropCount:I

    :goto_58
    move v1, v5

    goto :goto_64

    :cond_5a
    div-float v2, v0, v3

    float-to-int v2, v2

    int-to-float v2, v2

    mul-float/2addr v2, v3

    sub-float/2addr v0, v2

    .line 102
    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->overshootModifier:F

    .line 104
    iput v1, p0, Lio/agora/base/internal/video/VideoDecimator;->dropCount:I

    :cond_64
    :goto_64
    return v1
.end method

.method public dropNextFrame()Z
    .registers 2

    .line 137
    iget-boolean v0, p0, Lio/agora/base/internal/video/VideoDecimator;->dropNextFrame:Z

    return v0
.end method

.method public enableTemporalDecimation(Z)V
    .registers 2

    .line 35
    iput-boolean p1, p0, Lio/agora/base/internal/video/VideoDecimator;->enableTemoralDecimation:Z

    return-void
.end method

.method public getTargetFrameRate()I
    .registers 2

    .line 63
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    float-to-int v0, v0

    return v0
.end method

.method public inputFramerate()I
    .registers 3

    .line 132
    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J

    move-result-wide v0

    invoke-direct {p0, v0, v1}, Lio/agora/base/internal/video/VideoDecimator;->processIncomingFramerate(J)V

    .line 133
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    invoke-static {v0}, Ljava/lang/Math;->round(F)I

    move-result v0

    return v0
.end method

.method public needDropNextFrame(Z)Z
    .registers 2

    .line 141
    iput-boolean p1, p0, Lio/agora/base/internal/video/VideoDecimator;->dropNextFrame:Z

    return p1
.end method

.method public reset()V
    .registers 3

    const/4 v0, 0x0

    .line 24
    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->overshootModifier:F

    const/4 v1, 0x0

    .line 25
    iput v1, p0, Lio/agora/base/internal/video/VideoDecimator;->dropCount:I

    .line 26
    iput v1, p0, Lio/agora/base/internal/video/VideoDecimator;->keepCount:I

    const/high16 v1, 0x41f00000    # 30.0f

    .line 27
    iput v1, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    .line 28
    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameRate:F

    const/16 v0, 0x5a

    .line 29
    iput v0, p0, Lio/agora/base/internal/video/VideoDecimator;->maxFrameRate:I

    const/4 v0, 0x1

    .line 30
    iput-boolean v0, p0, Lio/agora/base/internal/video/VideoDecimator;->enableTemoralDecimation:Z

    .line 31
    sget v0, Lio/agora/base/internal/video/VideoDecimator;->FrameCountHistorySize:I

    new-array v0, v0, [J

    iput-object v0, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    return-void
.end method

.method public setMaxFramerate(I)I
    .registers 3

    if-gtz p1, :cond_b

    const-string p1, "VideoDecimator"

    const-string v0, "setMaxFramerate invalid max frame rate"

    .line 40
    invoke-static {p1, v0}, Lio/agora/base/internal/Logging;->w(Ljava/lang/String;Ljava/lang/String;)V

    const/4 p1, -0x1

    return p1

    .line 43
    :cond_b
    iput p1, p0, Lio/agora/base/internal/video/VideoDecimator;->maxFrameRate:I

    .line 44
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    int-to-float p1, p1

    cmpl-float v0, v0, p1

    if-lez v0, :cond_16

    .line 45
    iput p1, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    :cond_16
    const/4 p1, 0x0

    return p1
.end method

.method public setTargetFramerate(F)I
    .registers 6

    float-to-double v0, p1

    const-wide v2, 0x3fb999999999999aL    # 0.1

    cmpg-double v0, v0, v2

    if-gez v0, :cond_13

    const-string p1, "VideoDecimator"

    const-string v0, "setTargetFramerate invalid frame rate "

    .line 51
    invoke-static {p1, v0}, Lio/agora/base/internal/Logging;->w(Ljava/lang/String;Ljava/lang/String;)V

    const/4 p1, -0x1

    return p1

    .line 54
    :cond_13
    iget v0, p0, Lio/agora/base/internal/video/VideoDecimator;->maxFrameRate:I

    int-to-float v1, v0

    cmpl-float v1, p1, v1

    if-lez v1, :cond_1e

    int-to-float p1, v0

    .line 55
    iput p1, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    goto :goto_20

    .line 57
    :cond_1e
    iput p1, p0, Lio/agora/base/internal/video/VideoDecimator;->targetFrameRate:F

    :goto_20
    const/4 p1, 0x0

    return p1
.end method

.method public updateIncomingFramerate()V
    .registers 9

    .line 112
    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J

    move-result-wide v0

    .line 113
    iget-object v2, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    const/4 v3, 0x0

    aget-wide v4, v2, v3

    const-wide/16 v6, 0x0

    cmp-long v2, v4, v6

    if-nez v2, :cond_10

    goto :goto_21

    .line 115
    :cond_10
    sget v2, Lio/agora/base/internal/video/VideoDecimator;->FrameCountHistorySize:I

    add-int/lit8 v2, v2, -0x2

    :goto_14
    if-ltz v2, :cond_21

    .line 116
    iget-object v4, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    add-int/lit8 v5, v2, 0x1

    aget-wide v6, v4, v2

    aput-wide v6, v4, v5

    add-int/lit8 v2, v2, -0x1

    goto :goto_14

    .line 119
    :cond_21
    :goto_21
    iget-object v2, p0, Lio/agora/base/internal/video/VideoDecimator;->incomingFrameTimes:[J

    aput-wide v0, v2, v3

    .line 120
    invoke-direct {p0, v0, v1}, Lio/agora/base/internal/video/VideoDecimator;->processIncomingFramerate(J)V

    return-void
.end method