Replace runtime lookups of string integer codes

Make these values compile-time constants, which can be inlined.

PiperOrigin-RevId: 249327464

library/core/src/main/java/com/google/android/exoplayer2/audio/WavUtil.java

@@ -23,13 +23,13 @@ import com.google.android.exoplayer2.util.Util;
 public final class WavUtil {
 
   /** Four character code for "RIFF". */
-  public static final int RIFF_FOURCC = Util.getIntegerCodeForString("RIFF");
+  public static final int RIFF_FOURCC = 0x52494646;
   /** Four character code for "WAVE". */
-  public static final int WAVE_FOURCC = Util.getIntegerCodeForString("WAVE");
+  public static final int WAVE_FOURCC = 0x57415645;
   /** Four character code for "fmt ". */
-  public static final int FMT_FOURCC = Util.getIntegerCodeForString("fmt ");
+  public static final int FMT_FOURCC = 0x666d7420;
   /** Four character code for "data". */
-  public static final int DATA_FOURCC = Util.getIntegerCodeForString("data");
+  public static final int DATA_FOURCC = 0x64617461;
 
   /** WAVE type value for integer PCM audio data. */
   private static final int TYPE_PCM = 0x0001;

library/core/src/main/java/com/google/android/exoplayer2/extractor/flv/FlvExtractor.java

@@ -24,7 +24,6 @@ import com.google.android.exoplayer2.extractor.ExtractorsFactory;
 import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
@@ -64,7 +63,7 @@ public final class FlvExtractor implements Extractor {
   private static final int TAG_TYPE_SCRIPT_DATA = 18;
 
   // FLV container identifier.
-  private static final int FLV_TAG = Util.getIntegerCodeForString("FLV");
+  private static final int FLV_TAG = 0x00464c56;
 
   private final ParsableByteArray scratch;
   private final ParsableByteArray headerBuffer;

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp3/Mp3Extractor.java

@@ -35,7 +35,6 @@ import com.google.android.exoplayer2.metadata.id3.Id3Decoder;
 import com.google.android.exoplayer2.metadata.id3.Id3Decoder.FramePredicate;
 import com.google.android.exoplayer2.metadata.id3.MlltFrame;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.EOFException;
 import java.io.IOException;
 import java.lang.annotation.Documented;
@@ -95,9 +94,9 @@ public final class Mp3Extractor implements Extractor {
    */
   private static final int MPEG_AUDIO_HEADER_MASK = 0xFFFE0C00;
 
-  private static final int SEEK_HEADER_XING = Util.getIntegerCodeForString("Xing");
-  private static final int SEEK_HEADER_INFO = Util.getIntegerCodeForString("Info");
-  private static final int SEEK_HEADER_VBRI = Util.getIntegerCodeForString("VBRI");
+  private static final int SEEK_HEADER_XING = 0x58696e67;
+  private static final int SEEK_HEADER_INFO = 0x496e666f;
+  private static final int SEEK_HEADER_VBRI = 0x56425249;
   private static final int SEEK_HEADER_UNSET = 0;
 
   @Flags private final int flags;

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/Atom.java

@@ -17,7 +17,6 @@ package com.google.android.exoplayer2.extractor.mp4;
 
 import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -51,334 +50,334 @@ import java.util.List;
   public static final int EXTENDS_TO_END_SIZE = 0;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ftyp = Util.getIntegerCodeForString("ftyp");
+  public static final int TYPE_ftyp = 0x66747970;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_avc1 = Util.getIntegerCodeForString("avc1");
+  public static final int TYPE_avc1 = 0x61766331;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_avc3 = Util.getIntegerCodeForString("avc3");
+  public static final int TYPE_avc3 = 0x61766333;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_avcC = Util.getIntegerCodeForString("avcC");
+  public static final int TYPE_avcC = 0x61766343;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_hvc1 = Util.getIntegerCodeForString("hvc1");
+  public static final int TYPE_hvc1 = 0x68766331;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_hev1 = Util.getIntegerCodeForString("hev1");
+  public static final int TYPE_hev1 = 0x68657631;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_hvcC = Util.getIntegerCodeForString("hvcC");
+  public static final int TYPE_hvcC = 0x68766343;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_vp08 = Util.getIntegerCodeForString("vp08");
+  public static final int TYPE_vp08 = 0x76703038;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_vp09 = Util.getIntegerCodeForString("vp09");
+  public static final int TYPE_vp09 = 0x76703039;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_vpcC = Util.getIntegerCodeForString("vpcC");
+  public static final int TYPE_vpcC = 0x76706343;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_av01 = Util.getIntegerCodeForString("av01");
+  public static final int TYPE_av01 = 0x61763031;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_av1C = Util.getIntegerCodeForString("av1C");
+  public static final int TYPE_av1C = 0x61763143;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dvav = Util.getIntegerCodeForString("dvav");
+  public static final int TYPE_dvav = 0x64766176;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dva1 = Util.getIntegerCodeForString("dva1");
+  public static final int TYPE_dva1 = 0x64766131;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dvhe = Util.getIntegerCodeForString("dvhe");
+  public static final int TYPE_dvhe = 0x64766865;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dvh1 = Util.getIntegerCodeForString("dvh1");
+  public static final int TYPE_dvh1 = 0x64766831;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dvcC = Util.getIntegerCodeForString("dvcC");
+  public static final int TYPE_dvcC = 0x64766343;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dvvC = Util.getIntegerCodeForString("dvvC");
+  public static final int TYPE_dvvC = 0x64767643;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_s263 = Util.getIntegerCodeForString("s263");
+  public static final int TYPE_s263 = 0x73323633;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_d263 = Util.getIntegerCodeForString("d263");
+  public static final int TYPE_d263 = 0x64323633;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mdat = Util.getIntegerCodeForString("mdat");
+  public static final int TYPE_mdat = 0x6d646174;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mp4a = Util.getIntegerCodeForString("mp4a");
+  public static final int TYPE_mp4a = 0x6d703461;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE__mp3 = Util.getIntegerCodeForString(".mp3");
+  public static final int TYPE__mp3 = 0x2e6d7033;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_wave = Util.getIntegerCodeForString("wave");
+  public static final int TYPE_wave = 0x77617665;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_lpcm = Util.getIntegerCodeForString("lpcm");
+  public static final int TYPE_lpcm = 0x6c70636d;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sowt = Util.getIntegerCodeForString("sowt");
+  public static final int TYPE_sowt = 0x736f7774;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ac_3 = Util.getIntegerCodeForString("ac-3");
+  public static final int TYPE_ac_3 = 0x61632d33;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dac3 = Util.getIntegerCodeForString("dac3");
+  public static final int TYPE_dac3 = 0x64616333;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ec_3 = Util.getIntegerCodeForString("ec-3");
+  public static final int TYPE_ec_3 = 0x65632d33;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dec3 = Util.getIntegerCodeForString("dec3");
+  public static final int TYPE_dec3 = 0x64656333;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ac_4 = Util.getIntegerCodeForString("ac-4");
+  public static final int TYPE_ac_4 = 0x61632d34;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dac4 = Util.getIntegerCodeForString("dac4");
+  public static final int TYPE_dac4 = 0x64616334;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dtsc = Util.getIntegerCodeForString("dtsc");
+  public static final int TYPE_dtsc = 0x64747363;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dtsh = Util.getIntegerCodeForString("dtsh");
+  public static final int TYPE_dtsh = 0x64747368;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dtsl = Util.getIntegerCodeForString("dtsl");
+  public static final int TYPE_dtsl = 0x6474736c;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dtse = Util.getIntegerCodeForString("dtse");
+  public static final int TYPE_dtse = 0x64747365;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ddts = Util.getIntegerCodeForString("ddts");
+  public static final int TYPE_ddts = 0x64647473;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_tfdt = Util.getIntegerCodeForString("tfdt");
+  public static final int TYPE_tfdt = 0x74666474;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_tfhd = Util.getIntegerCodeForString("tfhd");
+  public static final int TYPE_tfhd = 0x74666864;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_trex = Util.getIntegerCodeForString("trex");
+  public static final int TYPE_trex = 0x74726578;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_trun = Util.getIntegerCodeForString("trun");
+  public static final int TYPE_trun = 0x7472756e;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sidx = Util.getIntegerCodeForString("sidx");
+  public static final int TYPE_sidx = 0x73696478;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_moov = Util.getIntegerCodeForString("moov");
+  public static final int TYPE_moov = 0x6d6f6f76;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mvhd = Util.getIntegerCodeForString("mvhd");
+  public static final int TYPE_mvhd = 0x6d766864;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_trak = Util.getIntegerCodeForString("trak");
+  public static final int TYPE_trak = 0x7472616b;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mdia = Util.getIntegerCodeForString("mdia");
+  public static final int TYPE_mdia = 0x6d646961;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_minf = Util.getIntegerCodeForString("minf");
+  public static final int TYPE_minf = 0x6d696e66;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stbl = Util.getIntegerCodeForString("stbl");
+  public static final int TYPE_stbl = 0x7374626c;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_esds = Util.getIntegerCodeForString("esds");
+  public static final int TYPE_esds = 0x65736473;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_moof = Util.getIntegerCodeForString("moof");
+  public static final int TYPE_moof = 0x6d6f6f66;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_traf = Util.getIntegerCodeForString("traf");
+  public static final int TYPE_traf = 0x74726166;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mvex = Util.getIntegerCodeForString("mvex");
+  public static final int TYPE_mvex = 0x6d766578;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mehd = Util.getIntegerCodeForString("mehd");
+  public static final int TYPE_mehd = 0x6d656864;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_tkhd = Util.getIntegerCodeForString("tkhd");
+  public static final int TYPE_tkhd = 0x746b6864;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_edts = Util.getIntegerCodeForString("edts");
+  public static final int TYPE_edts = 0x65647473;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_elst = Util.getIntegerCodeForString("elst");
+  public static final int TYPE_elst = 0x656c7374;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mdhd = Util.getIntegerCodeForString("mdhd");
+  public static final int TYPE_mdhd = 0x6d646864;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_hdlr = Util.getIntegerCodeForString("hdlr");
+  public static final int TYPE_hdlr = 0x68646c72;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stsd = Util.getIntegerCodeForString("stsd");
+  public static final int TYPE_stsd = 0x73747364;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_pssh = Util.getIntegerCodeForString("pssh");
+  public static final int TYPE_pssh = 0x70737368;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sinf = Util.getIntegerCodeForString("sinf");
+  public static final int TYPE_sinf = 0x73696e66;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_schm = Util.getIntegerCodeForString("schm");
+  public static final int TYPE_schm = 0x7363686d;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_schi = Util.getIntegerCodeForString("schi");
+  public static final int TYPE_schi = 0x73636869;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_tenc = Util.getIntegerCodeForString("tenc");
+  public static final int TYPE_tenc = 0x74656e63;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_encv = Util.getIntegerCodeForString("encv");
+  public static final int TYPE_encv = 0x656e6376;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_enca = Util.getIntegerCodeForString("enca");
+  public static final int TYPE_enca = 0x656e6361;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_frma = Util.getIntegerCodeForString("frma");
+  public static final int TYPE_frma = 0x66726d61;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_saiz = Util.getIntegerCodeForString("saiz");
+  public static final int TYPE_saiz = 0x7361697a;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_saio = Util.getIntegerCodeForString("saio");
+  public static final int TYPE_saio = 0x7361696f;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sbgp = Util.getIntegerCodeForString("sbgp");
+  public static final int TYPE_sbgp = 0x73626770;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sgpd = Util.getIntegerCodeForString("sgpd");
+  public static final int TYPE_sgpd = 0x73677064;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_uuid = Util.getIntegerCodeForString("uuid");
+  public static final int TYPE_uuid = 0x75756964;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_senc = Util.getIntegerCodeForString("senc");
+  public static final int TYPE_senc = 0x73656e63;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_pasp = Util.getIntegerCodeForString("pasp");
+  public static final int TYPE_pasp = 0x70617370;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_TTML = Util.getIntegerCodeForString("TTML");
+  public static final int TYPE_TTML = 0x54544d4c;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_vmhd = Util.getIntegerCodeForString("vmhd");
+  public static final int TYPE_vmhd = 0x766d6864;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mp4v = Util.getIntegerCodeForString("mp4v");
+  public static final int TYPE_mp4v = 0x6d703476;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stts = Util.getIntegerCodeForString("stts");
+  public static final int TYPE_stts = 0x73747473;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stss = Util.getIntegerCodeForString("stss");
+  public static final int TYPE_stss = 0x73747373;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ctts = Util.getIntegerCodeForString("ctts");
+  public static final int TYPE_ctts = 0x63747473;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stsc = Util.getIntegerCodeForString("stsc");
+  public static final int TYPE_stsc = 0x73747363;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stsz = Util.getIntegerCodeForString("stsz");
+  public static final int TYPE_stsz = 0x7374737a;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stz2 = Util.getIntegerCodeForString("stz2");
+  public static final int TYPE_stz2 = 0x73747a32;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stco = Util.getIntegerCodeForString("stco");
+  public static final int TYPE_stco = 0x7374636f;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_co64 = Util.getIntegerCodeForString("co64");
+  public static final int TYPE_co64 = 0x636f3634;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_tx3g = Util.getIntegerCodeForString("tx3g");
+  public static final int TYPE_tx3g = 0x74783367;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_wvtt = Util.getIntegerCodeForString("wvtt");
+  public static final int TYPE_wvtt = 0x77767474;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_stpp = Util.getIntegerCodeForString("stpp");
+  public static final int TYPE_stpp = 0x73747070;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_c608 = Util.getIntegerCodeForString("c608");
+  public static final int TYPE_c608 = 0x63363038;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_samr = Util.getIntegerCodeForString("samr");
+  public static final int TYPE_samr = 0x73616d72;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sawb = Util.getIntegerCodeForString("sawb");
+  public static final int TYPE_sawb = 0x73617762;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_udta = Util.getIntegerCodeForString("udta");
+  public static final int TYPE_udta = 0x75647461;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_meta = Util.getIntegerCodeForString("meta");
+  public static final int TYPE_meta = 0x6d657461;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_keys = Util.getIntegerCodeForString("keys");
+  public static final int TYPE_keys = 0x6b657973;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ilst = Util.getIntegerCodeForString("ilst");
+  public static final int TYPE_ilst = 0x696c7374;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_mean = Util.getIntegerCodeForString("mean");
+  public static final int TYPE_mean = 0x6d65616e;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_name = Util.getIntegerCodeForString("name");
+  public static final int TYPE_name = 0x6e616d65;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_data = Util.getIntegerCodeForString("data");
+  public static final int TYPE_data = 0x64617461;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_emsg = Util.getIntegerCodeForString("emsg");
+  public static final int TYPE_emsg = 0x656d7367;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_st3d = Util.getIntegerCodeForString("st3d");
+  public static final int TYPE_st3d = 0x73743364;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_sv3d = Util.getIntegerCodeForString("sv3d");
+  public static final int TYPE_sv3d = 0x73763364;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_proj = Util.getIntegerCodeForString("proj");
+  public static final int TYPE_proj = 0x70726f6a;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_camm = Util.getIntegerCodeForString("camm");
+  public static final int TYPE_camm = 0x63616d6d;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_alac = Util.getIntegerCodeForString("alac");
+  public static final int TYPE_alac = 0x616c6163;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_alaw = Util.getIntegerCodeForString("alaw");
+  public static final int TYPE_alaw = 0x616c6177;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_ulaw = Util.getIntegerCodeForString("ulaw");
+  public static final int TYPE_ulaw = 0x756c6177;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_Opus = Util.getIntegerCodeForString("Opus");
+  public static final int TYPE_Opus = 0x4f707573;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dOps = Util.getIntegerCodeForString("dOps");
+  public static final int TYPE_dOps = 0x644f7073;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_fLaC = Util.getIntegerCodeForString("fLaC");
+  public static final int TYPE_fLaC = 0x664c6143;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  public static final int TYPE_dfLa = Util.getIntegerCodeForString("dfLa");
+  public static final int TYPE_dfLa = 0x64664c61;
 
   public final int type;
 

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/AtomParsers.java

@@ -48,28 +48,28 @@ import java.util.List;
   private static final String TAG = "AtomParsers";
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_vide = Util.getIntegerCodeForString("vide");
+  private static final int TYPE_vide = 0x76696465;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_soun = Util.getIntegerCodeForString("soun");
+  private static final int TYPE_soun = 0x736f756e;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_text = Util.getIntegerCodeForString("text");
+  private static final int TYPE_text = 0x74657874;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_sbtl = Util.getIntegerCodeForString("sbtl");
+  private static final int TYPE_sbtl = 0x7362746c;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_subt = Util.getIntegerCodeForString("subt");
+  private static final int TYPE_subt = 0x73756274;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_clcp = Util.getIntegerCodeForString("clcp");
+  private static final int TYPE_clcp = 0x636c6370;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_meta = Util.getIntegerCodeForString("meta");
+  private static final int TYPE_meta = 0x6d657461;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_mdta = Util.getIntegerCodeForString("mdta");
+  private static final int TYPE_mdta = 0x6d647461;
 
   /**
    * The threshold number of samples to trim from the start/end of an audio track when applying an

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/FragmentedMp4Extractor.java

@@ -106,7 +106,7 @@ public class FragmentedMp4Extractor implements Extractor {
   private static final String TAG = "FragmentedMp4Extractor";
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int SAMPLE_GROUP_TYPE_seig = Util.getIntegerCodeForString("seig");
+  private static final int SAMPLE_GROUP_TYPE_seig = 0x73656967;
 
   private static final byte[] PIFF_SAMPLE_ENCRYPTION_BOX_EXTENDED_TYPE =
       new byte[] {-94, 57, 79, 82, 90, -101, 79, 20, -94, 68, 108, 66, 124, 100, -115, -12};

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/MetadataUtil.java

@@ -27,7 +27,6 @@ import com.google.android.exoplayer2.metadata.id3.InternalFrame;
 import com.google.android.exoplayer2.metadata.id3.TextInformationFrame;
 import com.google.android.exoplayer2.util.Log;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.nio.ByteBuffer;
 
 /** Utilities for handling metadata in MP4. */
@@ -36,41 +35,41 @@ import java.nio.ByteBuffer;
   private static final String TAG = "MetadataUtil";
 
   // Codes that start with the copyright character (omitted) and have equivalent ID3 frames.
-  private static final int SHORT_TYPE_NAME_1 = Util.getIntegerCodeForString("nam");
-  private static final int SHORT_TYPE_NAME_2 = Util.getIntegerCodeForString("trk");
-  private static final int SHORT_TYPE_COMMENT = Util.getIntegerCodeForString("cmt");
-  private static final int SHORT_TYPE_YEAR = Util.getIntegerCodeForString("day");
-  private static final int SHORT_TYPE_ARTIST = Util.getIntegerCodeForString("ART");
-  private static final int SHORT_TYPE_ENCODER = Util.getIntegerCodeForString("too");
-  private static final int SHORT_TYPE_ALBUM = Util.getIntegerCodeForString("alb");
-  private static final int SHORT_TYPE_COMPOSER_1 = Util.getIntegerCodeForString("com");
-  private static final int SHORT_TYPE_COMPOSER_2 = Util.getIntegerCodeForString("wrt");
-  private static final int SHORT_TYPE_LYRICS = Util.getIntegerCodeForString("lyr");
-  private static final int SHORT_TYPE_GENRE = Util.getIntegerCodeForString("gen");
+  private static final int SHORT_TYPE_NAME_1 = 0x006e616d;
+  private static final int SHORT_TYPE_NAME_2 = 0x0074726b;
+  private static final int SHORT_TYPE_COMMENT = 0x00636d74;
+  private static final int SHORT_TYPE_YEAR = 0x00646179;
+  private static final int SHORT_TYPE_ARTIST = 0x00415254;
+  private static final int SHORT_TYPE_ENCODER = 0x00746f6f;
+  private static final int SHORT_TYPE_ALBUM = 0x00616c62;
+  private static final int SHORT_TYPE_COMPOSER_1 = 0x00636f6d;
+  private static final int SHORT_TYPE_COMPOSER_2 = 0x00777274;
+  private static final int SHORT_TYPE_LYRICS = 0x006c7972;
+  private static final int SHORT_TYPE_GENRE = 0x0067656e;
 
   // Codes that have equivalent ID3 frames.
-  private static final int TYPE_COVER_ART = Util.getIntegerCodeForString("covr");
-  private static final int TYPE_GENRE = Util.getIntegerCodeForString("gnre");
-  private static final int TYPE_GROUPING = Util.getIntegerCodeForString("grp");
-  private static final int TYPE_DISK_NUMBER = Util.getIntegerCodeForString("disk");
-  private static final int TYPE_TRACK_NUMBER = Util.getIntegerCodeForString("trkn");
-  private static final int TYPE_TEMPO = Util.getIntegerCodeForString("tmpo");
-  private static final int TYPE_COMPILATION = Util.getIntegerCodeForString("cpil");
-  private static final int TYPE_ALBUM_ARTIST = Util.getIntegerCodeForString("aART");
-  private static final int TYPE_SORT_TRACK_NAME = Util.getIntegerCodeForString("sonm");
-  private static final int TYPE_SORT_ALBUM = Util.getIntegerCodeForString("soal");
-  private static final int TYPE_SORT_ARTIST = Util.getIntegerCodeForString("soar");
-  private static final int TYPE_SORT_ALBUM_ARTIST = Util.getIntegerCodeForString("soaa");
-  private static final int TYPE_SORT_COMPOSER = Util.getIntegerCodeForString("soco");
+  private static final int TYPE_COVER_ART = 0x636f7672;
+  private static final int TYPE_GENRE = 0x676e7265;
+  private static final int TYPE_GROUPING = 0x00677270;
+  private static final int TYPE_DISK_NUMBER = 0x6469736b;
+  private static final int TYPE_TRACK_NUMBER = 0x74726b6e;
+  private static final int TYPE_TEMPO = 0x746d706f;
+  private static final int TYPE_COMPILATION = 0x6370696c;
+  private static final int TYPE_ALBUM_ARTIST = 0x61415254;
+  private static final int TYPE_SORT_TRACK_NAME = 0x736f6e6d;
+  private static final int TYPE_SORT_ALBUM = 0x736f616c;
+  private static final int TYPE_SORT_ARTIST = 0x736f6172;
+  private static final int TYPE_SORT_ALBUM_ARTIST = 0x736f6161;
+  private static final int TYPE_SORT_COMPOSER = 0x736f636f;
 
   // Types that do not have equivalent ID3 frames.
-  private static final int TYPE_RATING = Util.getIntegerCodeForString("rtng");
-  private static final int TYPE_GAPLESS_ALBUM = Util.getIntegerCodeForString("pgap");
-  private static final int TYPE_TV_SORT_SHOW = Util.getIntegerCodeForString("sosn");
-  private static final int TYPE_TV_SHOW = Util.getIntegerCodeForString("tvsh");
+  private static final int TYPE_RATING = 0x72746e67;
+  private static final int TYPE_GAPLESS_ALBUM = 0x70676170;
+  private static final int TYPE_TV_SORT_SHOW = 0x736f736e;
+  private static final int TYPE_TV_SHOW = 0x74767368;
 
   // Type for items that are intended for internal use by the player.
-  private static final int TYPE_INTERNAL = Util.getIntegerCodeForString("----");
+  private static final int TYPE_INTERNAL = 0x2d2d2d2d;
 
   private static final int PICTURE_TYPE_FRONT_COVER = 3;
 

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/Mp4Extractor.java

@@ -35,7 +35,6 @@ import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.MimeTypes;
 import com.google.android.exoplayer2.util.NalUnitUtil;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
@@ -78,7 +77,7 @@ public final class Mp4Extractor implements Extractor, SeekMap {
   private static final int STATE_READING_SAMPLE = 2;
 
   /** Brand stored in the ftyp atom for QuickTime media. */
-  private static final int BRAND_QUICKTIME = Util.getIntegerCodeForString("qt  ");
+  private static final int BRAND_QUICKTIME = 0x71742020;
 
   /**
    * When seeking within the source, if the offset is greater than or equal to this value (or the

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/Sniffer.java

@@ -18,7 +18,6 @@ package com.google.android.exoplayer2.extractor.mp4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 
 /**
@@ -32,32 +31,32 @@ import java.io.IOException;
 
   private static final int[] COMPATIBLE_BRANDS =
       new int[] {
-        Util.getIntegerCodeForString("isom"),
-        Util.getIntegerCodeForString("iso2"),
-        Util.getIntegerCodeForString("iso3"),
-        Util.getIntegerCodeForString("iso4"),
-        Util.getIntegerCodeForString("iso5"),
-        Util.getIntegerCodeForString("iso6"),
-        Util.getIntegerCodeForString("avc1"),
-        Util.getIntegerCodeForString("hvc1"),
-        Util.getIntegerCodeForString("hev1"),
-        Util.getIntegerCodeForString("av01"),
-        Util.getIntegerCodeForString("mp41"),
-        Util.getIntegerCodeForString("mp42"),
-        Util.getIntegerCodeForString("3g2a"),
-        Util.getIntegerCodeForString("3g2b"),
-        Util.getIntegerCodeForString("3gr6"),
-        Util.getIntegerCodeForString("3gs6"),
-        Util.getIntegerCodeForString("3ge6"),
-        Util.getIntegerCodeForString("3gg6"),
-        Util.getIntegerCodeForString("M4V "),
-        Util.getIntegerCodeForString("M4A "),
-        Util.getIntegerCodeForString("f4v "),
-        Util.getIntegerCodeForString("kddi"),
-        Util.getIntegerCodeForString("M4VP"),
-        Util.getIntegerCodeForString("qt  "), // Apple QuickTime
-        Util.getIntegerCodeForString("MSNV"), // Sony PSP
-        Util.getIntegerCodeForString("dby1"), // Dolby Vision
+        0x69736f6d, // isom
+        0x69736f32, // iso2
+        0x69736f33, // iso3
+        0x69736f34, // iso4
+        0x69736f35, // iso5
+        0x69736f36, // iso6
+        0x61766331, // avc1
+        0x68766331, // hvc1
+        0x68657631, // hev1
+        0x61763031, // av01
+        0x6d703431, // mp41
+        0x6d703432, // mp42
+        0x33673261, // 3g2a
+        0x33673262, // 3g2b
+        0x33677236, // 3gr6
+        0x33677336, // 3gs6
+        0x33676536, // 3ge6
+        0x33676736, // 3gg6
+        0x4d345620, // M4V[space]
+        0x4d344120, // M4A[space]
+        0x66347620, // f4v[space]
+        0x6b646469, // kddi
+        0x4d345650, // M4VP
+        0x71742020, // qt[space][space], Apple QuickTime
+        0x4d534e56, // MSNV, Sony PSP
+        0x64627931, // dby1, Dolby Vision
       };
 
   /**
@@ -188,7 +187,7 @@ import java.io.IOException;
    */
   private static boolean isCompatibleBrand(int brand) {
     // Accept all brands starting '3gp'.
-    if (brand >>> 8 == Util.getIntegerCodeForString("3gp")) {
+    if (brand >>> 8 == 0x00336770) {
       return true;
     }
     for (int compatibleBrand : COMPATIBLE_BRANDS) {

library/core/src/main/java/com/google/android/exoplayer2/extractor/ogg/OggPageHeader.java

@@ -19,7 +19,6 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.EOFException;
 import java.io.IOException;
 
@@ -34,7 +33,7 @@ import java.io.IOException;
   public static final int MAX_PAGE_SIZE = EMPTY_PAGE_HEADER_SIZE + MAX_SEGMENT_COUNT
       + MAX_PAGE_PAYLOAD;
 
-  private static final int TYPE_OGGS = Util.getIntegerCodeForString("OggS");
+  private static final int TYPE_OGGS = 0x4f676753;
 
   public int revision;
   public int type;

library/core/src/main/java/com/google/android/exoplayer2/extractor/ogg/OpusReader.java

@@ -19,7 +19,6 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.util.MimeTypes;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.ArrayList;
@@ -38,7 +37,7 @@ import java.util.List;
    */
   private static final int SAMPLE_RATE = 48000;
 
-  private static final int OPUS_CODE = Util.getIntegerCodeForString("Opus");
+  private static final int OPUS_CODE = 0x4f707573;
   private static final byte[] OPUS_SIGNATURE = {'O', 'p', 'u', 's', 'H', 'e', 'a', 'd'};
 
   private boolean headerRead;

library/core/src/main/java/com/google/android/exoplayer2/extractor/rawcc/RawCcExtractor.java

@@ -25,7 +25,6 @@ import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 
 /**
@@ -35,7 +34,7 @@ public final class RawCcExtractor implements Extractor {
 
   private static final int SCRATCH_SIZE = 9;
   private static final int HEADER_SIZE = 8;
-  private static final int HEADER_ID = Util.getIntegerCodeForString("RCC\u0001");
+  private static final int HEADER_ID = 0x52434301;
   private static final int TIMESTAMP_SIZE_V0 = 4;
   private static final int TIMESTAMP_SIZE_V1 = 8;
 

library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/Ac3Extractor.java

@@ -27,7 +27,6 @@ import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.ts.TsPayloadReader.TrackIdGenerator;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 
 /**
@@ -45,7 +44,7 @@ public final class Ac3Extractor implements Extractor {
   private static final int MAX_SNIFF_BYTES = 8 * 1024;
   private static final int AC3_SYNC_WORD = 0x0B77;
   private static final int MAX_SYNC_FRAME_SIZE = 2786;
-  private static final int ID3_TAG = Util.getIntegerCodeForString("ID3");
+  private static final int ID3_TAG = 0x00494433;
 
   private final long firstSampleTimestampUs;
   private final Ac3Reader reader;

library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/Ac4Extractor.java

@@ -29,7 +29,6 @@ import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.ts.TsPayloadReader.TrackIdGenerator;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 
 /** Extracts data from AC-4 bitstreams. */
@@ -53,7 +52,7 @@ public final class Ac4Extractor implements Extractor {
   /** The size of the frame header, in bytes. */
   private static final int FRAME_HEADER_SIZE = 7;
 
-  private static final int ID3_TAG = Util.getIntegerCodeForString("ID3");
+  private static final int ID3_TAG = 0x00494433;
 
   private final long firstSampleTimestampUs;
   private final Ac4Reader reader;

library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/AdtsExtractor.java

@@ -32,7 +32,6 @@ import com.google.android.exoplayer2.extractor.ts.TsPayloadReader.TrackIdGenerat
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.ParsableBitArray;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
@@ -66,7 +65,7 @@ public final class AdtsExtractor implements Extractor {
   public static final int FLAG_ENABLE_CONSTANT_BITRATE_SEEKING = 1;
 
   private static final int MAX_PACKET_SIZE = 2 * 1024;
-  private static final int ID3_TAG = Util.getIntegerCodeForString("ID3");
+  private static final int ID3_TAG = 0x00494433;
   /**
    * The maximum number of bytes to search when sniffing, excluding the header, before giving up.
    * Frame sizes are represented by 13-bit fields, so expect a valid frame in the first 8192 bytes.

library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java

@@ -101,10 +101,10 @@ public final class TsExtractor implements Extractor {
   private static final int TS_PAT_PID = 0;
   private static final int MAX_PID_PLUS_ONE = 0x2000;
 
-  private static final long AC3_FORMAT_IDENTIFIER = Util.getIntegerCodeForString("AC-3");
-  private static final long E_AC3_FORMAT_IDENTIFIER = Util.getIntegerCodeForString("EAC3");
-  private static final long AC4_FORMAT_IDENTIFIER = Util.getIntegerCodeForString("AC-4");
-  private static final long HEVC_FORMAT_IDENTIFIER = Util.getIntegerCodeForString("HEVC");
+  private static final long AC3_FORMAT_IDENTIFIER = 0x41432d33;
+  private static final long E_AC3_FORMAT_IDENTIFIER = 0x45414333;
+  private static final long AC4_FORMAT_IDENTIFIER = 0x41432d34;
+  private static final long HEVC_FORMAT_IDENTIFIER = 0x48455643;
 
   private static final int BUFFER_SIZE = TS_PACKET_SIZE * 50;
   private static final int SNIFF_TS_PACKET_COUNT = 5;

library/core/src/main/java/com/google/android/exoplayer2/extractor/wav/WavHeaderReader.java

@@ -22,7 +22,6 @@ import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Log;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 
 /** Reads a {@code WavHeader} from an input stream; supports resuming from input failures. */
@@ -122,11 +121,13 @@ import java.io.IOException;
     ParsableByteArray scratch = new ParsableByteArray(ChunkHeader.SIZE_IN_BYTES);
     // Skip all chunks until we hit the data header.
     ChunkHeader chunkHeader = ChunkHeader.peek(input, scratch);
-    while (chunkHeader.id != Util.getIntegerCodeForString("data")) {
+    final int data = 0x64617461;
+    while (chunkHeader.id != data) {
       Log.w(TAG, "Ignoring unknown WAV chunk: " + chunkHeader.id);
       long bytesToSkip = ChunkHeader.SIZE_IN_BYTES + chunkHeader.size;
       // Override size of RIFF chunk, since it describes its size as the entire file.
-      if (chunkHeader.id == Util.getIntegerCodeForString("RIFF")) {
+      final int riff = 0x52494646;
+      if (chunkHeader.id == riff) {
         bytesToSkip = ChunkHeader.SIZE_IN_BYTES + 4;
       }
       if (bytesToSkip > Integer.MAX_VALUE) {

library/core/src/main/java/com/google/android/exoplayer2/metadata/id3/Id3Decoder.java

@@ -61,10 +61,8 @@ public final class Id3Decoder implements MetadataDecoder {
 
   private static final String TAG = "Id3Decoder";
 
-  /**
-   * The first three bytes of a well formed ID3 tag header.
-   */
-  public static final int ID3_TAG = Util.getIntegerCodeForString("ID3");
+  /** The first three bytes of a well formed ID3 tag header. */
+  public static final int ID3_TAG = 0x00494433;
   /**
    * Length of an ID3 tag header.
    */

library/core/src/main/java/com/google/android/exoplayer2/text/cea/CeaUtil.java

@@ -19,14 +19,13 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.util.Log;
 import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
 
 /** Utility methods for handling CEA-608/708 messages. Defined in A/53 Part 4:2009. */
 public final class CeaUtil {
 
   private static final String TAG = "CeaUtil";
 
-  public static final int USER_DATA_IDENTIFIER_GA94 = Util.getIntegerCodeForString("GA94");
+  public static final int USER_DATA_IDENTIFIER_GA94 = 0x47413934;
   public static final int USER_DATA_TYPE_CODE_MPEG_CC = 0x3;
 
   private static final int PAYLOAD_TYPE_CC = 4;

library/core/src/main/java/com/google/android/exoplayer2/text/tx3g/Tx3gDecoder.java

@@ -43,8 +43,8 @@ public final class Tx3gDecoder extends SimpleSubtitleDecoder {
   private static final char BOM_UTF16_BE = '\uFEFF';
   private static final char BOM_UTF16_LE = '\uFFFE';
 
-  private static final int TYPE_STYL = Util.getIntegerCodeForString("styl");
-  private static final int TYPE_TBOX = Util.getIntegerCodeForString("tbox");
+  private static final int TYPE_STYL = 0x7374796c;
+  private static final int TYPE_TBOX = 0x74626f78;
   private static final String TX3G_SERIF = "Serif";
 
   private static final int SIZE_ATOM_HEADER = 8;

library/core/src/main/java/com/google/android/exoplayer2/text/webvtt/Mp4WebvttDecoder.java

@@ -31,13 +31,13 @@ public final class Mp4WebvttDecoder extends SimpleSubtitleDecoder {
   private static final int BOX_HEADER_SIZE = 8;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_payl = Util.getIntegerCodeForString("payl");
+  private static final int TYPE_payl = 0x7061796c;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_sttg = Util.getIntegerCodeForString("sttg");
+  private static final int TYPE_sttg = 0x73747467;
 
   @SuppressWarnings("ConstantCaseForConstants")
-  private static final int TYPE_vttc = Util.getIntegerCodeForString("vttc");
+  private static final int TYPE_vttc = 0x76747463;
 
   private final ParsableByteArray sampleData;
   private final WebvttCue.Builder builder;

library/core/src/main/java/com/google/android/exoplayer2/video/spherical/ProjectionDecoder.java

@@ -36,12 +36,12 @@ import java.util.zip.Inflater;
  */
 public final class ProjectionDecoder {
 
-  private static final int TYPE_YTMP = Util.getIntegerCodeForString("ytmp");
-  private static final int TYPE_MSHP = Util.getIntegerCodeForString("mshp");
-  private static final int TYPE_RAW = Util.getIntegerCodeForString("raw ");
-  private static final int TYPE_DFL8 = Util.getIntegerCodeForString("dfl8");
-  private static final int TYPE_MESH = Util.getIntegerCodeForString("mesh");
-  private static final int TYPE_PROJ = Util.getIntegerCodeForString("proj");
+  private static final int TYPE_YTMP = 0x79746d70;
+  private static final int TYPE_MSHP = 0x6d736870;
+  private static final int TYPE_RAW = 0x72617720;
+  private static final int TYPE_DFL8 = 0x64666c38;
+  private static final int TYPE_MESH = 0x6d657368;
+  private static final int TYPE_PROJ = 0x70726f6a;
 
   // Sanity limits to prevent a bad file from creating an OOM situation. We don't expect a mesh to
   // exceed these limits.