package com.google.android.exoplayer2.audio; import com.google.android.exoplayer2.Format; import com.google.android.exoplayer2.drm.DrmInitData; import com.google.android.exoplayer2.util.ParsableBitArray; import com.ironsource.mediationsdk.utils.IronSourceConstants; import java.nio.ByteBuffer; import java.util.Arrays; /* loaded from: classes2.dex */ public final class DtsUtil { public static final int DTS_HD_MAX_RATE_BYTES_PER_SECOND = 2250000; public static final int DTS_MAX_RATE_BYTES_PER_SECOND = 192000; private static final byte FIRST_BYTE_14B_BE = 31; private static final byte FIRST_BYTE_14B_LE = -1; private static final byte FIRST_BYTE_BE = Byte.MAX_VALUE; private static final byte FIRST_BYTE_LE = -2; private static final int SYNC_VALUE_14B_BE = 536864768; private static final int SYNC_VALUE_14B_LE = -14745368; private static final int SYNC_VALUE_BE = 2147385345; private static final int SYNC_VALUE_LE = -25230976; private static final int[] CHANNELS_BY_AMODE = {1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 7, 8, 8}; private static final int[] SAMPLE_RATE_BY_SFREQ = {-1, 8000, AacUtil.AAC_HE_V1_MAX_RATE_BYTES_PER_SECOND, 32000, -1, -1, 11025, 22050, 44100, -1, -1, 12000, 24000, OpusUtil.SAMPLE_RATE, -1, -1}; private static final int[] TWICE_BITRATE_KBPS_BY_RATE = {64, 112, 128, 192, 224, 256, 384, 448, 512, 640, 768, 896, 1024, 1152, 1280, 1536, 1920, 2048, IronSourceConstants.IS_AD_UNIT_CAPPED, 2560, 2688, 2816, 2823, 2944, 3072, 3840, 4096, 6144, 7680}; public static boolean isSyncWord(int i) { return i == SYNC_VALUE_BE || i == SYNC_VALUE_LE || i == SYNC_VALUE_14B_BE || i == SYNC_VALUE_14B_LE; } public static Format parseDtsFormat(byte[] bArr, String str, String str2, DrmInitData drmInitData) { ParsableBitArray normalizedFrameHeader = getNormalizedFrameHeader(bArr); normalizedFrameHeader.skipBits(60); int i = CHANNELS_BY_AMODE[normalizedFrameHeader.readBits(6)]; int i2 = SAMPLE_RATE_BY_SFREQ[normalizedFrameHeader.readBits(4)]; int readBits = normalizedFrameHeader.readBits(5); int[] iArr = TWICE_BITRATE_KBPS_BY_RATE; int i3 = readBits >= iArr.length ? -1 : (iArr[readBits] * 1000) / 2; normalizedFrameHeader.skipBits(10); return new Format.Builder().setId(str).setSampleMimeType("audio/vnd.dts").setAverageBitrate(i3).setChannelCount(i + (normalizedFrameHeader.readBits(2) > 0 ? 1 : 0)).setSampleRate(i2).setDrmInitData(drmInitData).setLanguage(str2).build(); } public static int parseDtsAudioSampleCount(byte[] bArr) { int i; byte b; int i2; byte b2; byte b3 = bArr[0]; if (b3 != -2) { if (b3 == -1) { i = (bArr[4] & 7) << 4; b2 = bArr[7]; } else if (b3 == 31) { i = (bArr[5] & 7) << 4; b2 = bArr[6]; } else { i = (bArr[4] & 1) << 6; b = bArr[5]; } i2 = b2 & 60; return (((i2 >> 2) | i) + 1) * 32; } i = (bArr[5] & 1) << 6; b = bArr[4]; i2 = b & 252; return (((i2 >> 2) | i) + 1) * 32; } public static int parseDtsAudioSampleCount(ByteBuffer byteBuffer) { int i; byte b; int i2; byte b2; int position = byteBuffer.position(); byte b3 = byteBuffer.get(position); if (b3 != -2) { if (b3 == -1) { i = (byteBuffer.get(position + 4) & 7) << 4; b2 = byteBuffer.get(position + 7); } else if (b3 == 31) { i = (byteBuffer.get(position + 5) & 7) << 4; b2 = byteBuffer.get(position + 6); } else { i = (byteBuffer.get(position + 4) & 1) << 6; b = byteBuffer.get(position + 5); } i2 = b2 & 60; return (((i2 >> 2) | i) + 1) * 32; } i = (byteBuffer.get(position + 5) & 1) << 6; b = byteBuffer.get(position + 4); i2 = b & 252; return (((i2 >> 2) | i) + 1) * 32; } /* JADX WARN: Removed duplicated region for block: B:15:0x005f */ /* JADX WARN: Removed duplicated region for block: B:17:? A[RETURN, SYNTHETIC] */ /* Code decompiled incorrectly, please refer to instructions dump. To view partially-correct add '--show-bad-code' argument */ public static int getDtsFrameSize(byte[] r7) { /* r0 = 0 r1 = r7[r0] r2 = -2 r3 = 6 r4 = 7 r5 = 1 r6 = 4 if (r1 == r2) goto L4a r2 = -1 if (r1 == r2) goto L32 r2 = 31 if (r1 == r2) goto L21 r1 = 5 r1 = r7[r1] r1 = r1 & 3 int r1 = r1 << 12 r2 = r7[r3] r2 = r2 & 255(0xff, float:3.57E-43) int r2 = r2 << r6 r1 = r1 | r2 r7 = r7[r4] goto L58 L21: r0 = r7[r3] r0 = r0 & 3 int r0 = r0 << 12 r1 = r7[r4] r1 = r1 & 255(0xff, float:3.57E-43) int r1 = r1 << r6 r0 = r0 | r1 r1 = 8 r7 = r7[r1] goto L42 L32: r0 = r7[r4] r0 = r0 & 3 int r0 = r0 << 12 r1 = r7[r3] r1 = r1 & 255(0xff, float:3.57E-43) int r1 = r1 << r6 r0 = r0 | r1 r1 = 9 r7 = r7[r1] L42: r7 = r7 & 60 int r7 = r7 >> 2 r7 = r7 | r0 int r7 = r7 + r5 r0 = r5 goto L5d L4a: r1 = r7[r6] r1 = r1 & 3 int r1 = r1 << 12 r2 = r7[r4] r2 = r2 & 255(0xff, float:3.57E-43) int r2 = r2 << r6 r1 = r1 | r2 r7 = r7[r3] L58: r7 = r7 & 240(0xf0, float:3.36E-43) int r7 = r7 >> r6 r7 = r7 | r1 int r7 = r7 + r5 L5d: if (r0 == 0) goto L63 int r7 = r7 * 16 int r7 = r7 / 14 L63: return r7 */ throw new UnsupportedOperationException("Method not decompiled: com.google.android.exoplayer2.audio.DtsUtil.getDtsFrameSize(byte[]):int"); } private static ParsableBitArray getNormalizedFrameHeader(byte[] bArr) { if (bArr[0] == Byte.MAX_VALUE) { return new ParsableBitArray(bArr); } byte[] copyOf = Arrays.copyOf(bArr, bArr.length); if (isLittleEndianFrameHeader(copyOf)) { for (int i = 0; i < copyOf.length - 1; i += 2) { byte b = copyOf[i]; int i2 = i + 1; copyOf[i] = copyOf[i2]; copyOf[i2] = b; } } ParsableBitArray parsableBitArray = new ParsableBitArray(copyOf); if (copyOf[0] == 31) { ParsableBitArray parsableBitArray2 = new ParsableBitArray(copyOf); while (parsableBitArray2.bitsLeft() >= 16) { parsableBitArray2.skipBits(2); parsableBitArray.putInt(parsableBitArray2.readBits(14), 14); } } parsableBitArray.reset(copyOf); return parsableBitArray; } private static boolean isLittleEndianFrameHeader(byte[] bArr) { byte b = bArr[0]; return b == -2 || b == -1; } private DtsUtil() { } }