mirror of
https://github.com/samsonjs/media.git
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Rearrange elements based on Google coding conventions and other minor changes
This commit is contained in:
rohks
Rohit Singh
parent
43cf32738d
commit
b9c2ee4d24
2 changed files with 175 additions and 188 deletions
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@ -40,110 +40,6 @@ import java.util.Arrays;
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@UnstableApi
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public final class MpeghUtil {
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/** See ISO_IEC_23003-3;2020, 6.1.1.1, Table 72. */
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private static final int[] SAMPLING_RATE_TABLE =
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new int[]{
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96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350,
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0, 0, 57600, 51200, 40000, 38400, 34150, 28800, 25600, 20000, 19200, 17075, 14400, 12800,
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9600, 0, 0, 0, 0
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};
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/** See ISO_IEC_23003-3;2020, 6.1.1.1, Table 75. */
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private static final int[] OUTPUT_FRAMELENGTH_TABLE =
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new int[]{
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768, 1024, 2048, 2048, 4096, 0, 0, 0
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};
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/** See ISO_IEC_23003-3;2020, 6.1.1.1, Table 75. */
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private static final int[] SBR_RATIO_INDEX_TABLE =
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new int[]{
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0, 0, 2, 3, 1
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};
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/** See ISO_IEC_23003-8;2022, 14.4.4. */
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private static final int MHAS_SYNCPACKET = 0xC001A5;
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/**
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* MHAS packet types. See ISO_IEC_23008-3;2022, 14.3.1, Table 226.
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* One of {@link #PACTYP_FILLDATA}, {@link #PACTYP_MPEGH3DACFG}, {@link #PACTYP_MPEGH3DAFRAME},
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* {@link #PACTYP_AUDIOSCENEINFO}, {@link #PACTYP_SYNC}, {@link #PACTYP_SYNCGAP},
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* {@link #PACTYP_MARKER}, {@link #PACTYP_CRC16}, {@link #PACTYP_CRC32},
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* {@link #PACTYP_DESCRIPTOR}, {@link #PACTYP_USERINTERACTION}, {@link #PACTYP_LOUDNESS_DRC},
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* {@link #PACTYP_BUFFERINFO}, {@link #PACTYP_GLOBAL_CRC16}, {@link #PACTYP_GLOBAL_CRC32},
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* {@link #PACTYP_AUDIOTRUNCATION}, {@link #PACTYP_GENDATA}, {@link #PACTYPE_EARCON},
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* {@link #PACTYPE_PCMCONFIG}, {@link #PACTYPE_PCMDATA}, {@link #PACTYP_LOUDNESS}.
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*/
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@Documented
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@Retention(RetentionPolicy.SOURCE)
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@Target(TYPE_USE)
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@IntDef({
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PACTYP_FILLDATA,
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PACTYP_MPEGH3DACFG,
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PACTYP_MPEGH3DAFRAME,
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PACTYP_AUDIOSCENEINFO,
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PACTYP_SYNC,
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PACTYP_SYNCGAP,
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PACTYP_MARKER,
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PACTYP_CRC16,
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PACTYP_CRC32,
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PACTYP_DESCRIPTOR,
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PACTYP_USERINTERACTION,
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PACTYP_LOUDNESS_DRC,
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PACTYP_BUFFERINFO,
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PACTYP_GLOBAL_CRC16,
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PACTYP_GLOBAL_CRC32,
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PACTYP_AUDIOTRUNCATION,
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PACTYP_GENDATA,
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PACTYPE_EARCON,
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PACTYPE_PCMCONFIG,
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PACTYPE_PCMDATA,
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PACTYP_LOUDNESS
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})
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private @interface MHASPacketType {}
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private static final int PACTYP_FILLDATA = 0;
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private static final int PACTYP_MPEGH3DACFG = 1;
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private static final int PACTYP_MPEGH3DAFRAME = 2;
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private static final int PACTYP_AUDIOSCENEINFO = 3;
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private static final int PACTYP_SYNC = 6;
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private static final int PACTYP_SYNCGAP = 7;
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private static final int PACTYP_MARKER = 8;
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private static final int PACTYP_CRC16 = 9;
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private static final int PACTYP_CRC32 = 10;
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private static final int PACTYP_DESCRIPTOR = 11;
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private static final int PACTYP_USERINTERACTION = 12;
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private static final int PACTYP_LOUDNESS_DRC = 13;
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private static final int PACTYP_BUFFERINFO = 14;
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private static final int PACTYP_GLOBAL_CRC16 = 15;
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private static final int PACTYP_GLOBAL_CRC32 = 16;
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private static final int PACTYP_AUDIOTRUNCATION = 17;
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private static final int PACTYP_GENDATA = 18;
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private static final int PACTYPE_EARCON = 19;
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private static final int PACTYPE_PCMCONFIG = 20;
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private static final int PACTYPE_PCMDATA = 21;
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private static final int PACTYP_LOUDNESS = 22;
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/**
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* Represents the parsing state. One of {@link #STATE_END_OUTPUT},
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* {@link #STATE_PARSE_ERROR}, {@link #STATE_SUBSTREAM_UNSUPPORTED}.
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*/
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@Documented
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@Retention(RetentionPolicy.SOURCE)
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@Target(TYPE_USE)
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@IntDef({
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STATE_END_OUTPUT,
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STATE_PARSE_ERROR,
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STATE_SUBSTREAM_UNSUPPORTED
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})
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private @interface State {}
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private static final int STATE_END_OUTPUT = 0;
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private static final int STATE_PARSE_ERROR = 1;
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private static final int STATE_SUBSTREAM_UNSUPPORTED = 2;
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public static class FrameInfo {
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public boolean containsConfig;
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@ -158,8 +54,6 @@ public final class MpeghUtil {
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public byte[] compatibleSetIndication;
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public FrameInfo() {
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this.containsConfig = false;
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this.configChanged = false;
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this.standardFrameSamples = Format.NO_VALUE;
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this.samplingRate = Format.NO_VALUE;
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this.frameSamples = Format.NO_VALUE;
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@ -199,6 +93,132 @@ public final class MpeghUtil {
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}
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}
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public static class ParseException extends IOException {
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public final @State int parseState;
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public static ParseException createForNotEnoughData() {
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return new ParseException(null, null, STATE_END_OUTPUT);
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}
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public static ParseException createForUnsupportedSubstream(@Nullable String message) {
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return new ParseException(message, null, STATE_SUBSTREAM_UNSUPPORTED);
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}
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public static ParseException createForParsingError(@Nullable String message) {
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return new ParseException(message, null, STATE_PARSE_ERROR);
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}
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protected ParseException(
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@Nullable String message,
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@Nullable Throwable cause,
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@State int parseState) {
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super(message, cause);
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this.parseState = parseState;
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}
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}
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/**
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* MHAS packet types. See ISO_IEC_23008-3;2022, 14.3.1, Table 226.
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* One of {@link #PACTYP_FILLDATA}, {@link #PACTYP_MPEGH3DACFG}, {@link #PACTYP_MPEGH3DAFRAME},
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* {@link #PACTYP_AUDIOSCENEINFO}, {@link #PACTYP_SYNC}, {@link #PACTYP_SYNCGAP},
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* {@link #PACTYP_MARKER}, {@link #PACTYP_CRC16}, {@link #PACTYP_CRC32},
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* {@link #PACTYP_DESCRIPTOR}, {@link #PACTYP_USERINTERACTION}, {@link #PACTYP_LOUDNESS_DRC},
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* {@link #PACTYP_BUFFERINFO}, {@link #PACTYP_GLOBAL_CRC16}, {@link #PACTYP_GLOBAL_CRC32},
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* {@link #PACTYP_AUDIOTRUNCATION}, {@link #PACTYP_GENDATA}, {@link #PACTYPE_EARCON},
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* {@link #PACTYPE_PCMCONFIG}, {@link #PACTYPE_PCMDATA}, {@link #PACTYP_LOUDNESS}.
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*/
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@Documented
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@Retention(RetentionPolicy.SOURCE)
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@Target(TYPE_USE)
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@IntDef({
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PACTYP_FILLDATA,
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PACTYP_MPEGH3DACFG,
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PACTYP_MPEGH3DAFRAME,
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PACTYP_AUDIOSCENEINFO,
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PACTYP_SYNC,
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PACTYP_SYNCGAP,
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PACTYP_MARKER,
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PACTYP_CRC16,
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PACTYP_CRC32,
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PACTYP_DESCRIPTOR,
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PACTYP_USERINTERACTION,
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PACTYP_LOUDNESS_DRC,
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PACTYP_BUFFERINFO,
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PACTYP_GLOBAL_CRC16,
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PACTYP_GLOBAL_CRC32,
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PACTYP_AUDIOTRUNCATION,
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PACTYP_GENDATA,
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PACTYPE_EARCON,
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PACTYPE_PCMCONFIG,
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PACTYPE_PCMDATA,
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PACTYP_LOUDNESS
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})
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private @interface MhasPacketType {}
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private static final int PACTYP_FILLDATA = 0;
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private static final int PACTYP_MPEGH3DACFG = 1;
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private static final int PACTYP_MPEGH3DAFRAME = 2;
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private static final int PACTYP_AUDIOSCENEINFO = 3;
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private static final int PACTYP_SYNC = 6;
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private static final int PACTYP_SYNCGAP = 7;
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private static final int PACTYP_MARKER = 8;
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private static final int PACTYP_CRC16 = 9;
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private static final int PACTYP_CRC32 = 10;
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private static final int PACTYP_DESCRIPTOR = 11;
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private static final int PACTYP_USERINTERACTION = 12;
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private static final int PACTYP_LOUDNESS_DRC = 13;
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private static final int PACTYP_BUFFERINFO = 14;
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private static final int PACTYP_GLOBAL_CRC16 = 15;
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private static final int PACTYP_GLOBAL_CRC32 = 16;
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private static final int PACTYP_AUDIOTRUNCATION = 17;
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private static final int PACTYP_GENDATA = 18;
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private static final int PACTYPE_EARCON = 19;
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private static final int PACTYPE_PCMCONFIG = 20;
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private static final int PACTYPE_PCMDATA = 21;
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private static final int PACTYP_LOUDNESS = 22;
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/**
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* Represents the parsing state. One of {@link #STATE_END_OUTPUT},
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* {@link #STATE_PARSE_ERROR}, {@link #STATE_SUBSTREAM_UNSUPPORTED}.
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*/
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@Documented
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@Retention(RetentionPolicy.SOURCE)
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@Target(TYPE_USE)
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@IntDef({
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STATE_END_OUTPUT,
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STATE_PARSE_ERROR,
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STATE_SUBSTREAM_UNSUPPORTED
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})
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private @interface State {}
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private static final int STATE_END_OUTPUT = 0;
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private static final int STATE_PARSE_ERROR = 1;
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private static final int STATE_SUBSTREAM_UNSUPPORTED = 2;
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/** See ISO_IEC_23003-3;2020, 6.1.1.1, Table 72. */
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private static final int[] SAMPLING_RATE_TABLE =
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new int[]{
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96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350,
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0, 0, 57600, 51200, 40000, 38400, 34150, 28800, 25600, 20000, 19200, 17075, 14400, 12800,
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9600, 0, 0, 0, 0
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};
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/** See ISO_IEC_23003-3;2020, 6.1.1.1, Table 75. */
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private static final int[] OUTPUT_FRAMELENGTH_TABLE =
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new int[]{
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768, 1024, 2048, 2048, 4096, 0, 0, 0
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};
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/** See ISO_IEC_23003-3;2020, 6.1.1.1, Table 75. */
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private static final int[] SBR_RATIO_INDEX_TABLE =
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new int[]{
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0, 0, 2, 3, 1
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};
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/** See ISO_IEC_23003-8;2022, 14.4.4. */
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private static final int MHAS_SYNCPACKET = 0xC001A5;
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/**
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* Validates that the provided number of bits is available in the bit array.
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*
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@ -247,7 +267,7 @@ public final class MpeghUtil {
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boolean retVal = false;
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int dataPos = data.getPosition();
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while (true) {
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MHASPacketHeader header;
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MhasPacketHeader header;
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try {
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header = parseMhasPacketHeader(data);
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} catch (ParseException e) {
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@ -270,39 +290,12 @@ public final class MpeghUtil {
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return retVal;
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}
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private static class MHASPacketHeader {
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@MHASPacketType int packetType;
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long packetLabel;
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int packetLength;
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public MHASPacketHeader(@MHASPacketType int type, long label, int length) {
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packetType = type;
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packetLabel = label;
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packetLength = length;
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}
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}
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/**
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* Parses an MHAS packet header.
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* See ISO_IEC_23008-3;2022, 14.2.1, Table 222.
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*
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* @param data The bit array to parse.
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* @return MHASPacketHeader The MHAS packet header info.
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* @throws {@link ParseException} if parsing failed, i.e. there is not enough data available.
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*/
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private static MHASPacketHeader parseMhasPacketHeader(ParsableBitArray data) throws ParseException {
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@MHASPacketType int packetType = (int) readEscapedValue(data, 3, 8, 8);
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long packetLabel = readEscapedValue(data, 2, 8, 32);
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int packetLength = (int) readEscapedValue(data, 11, 24, 24);
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return new MHASPacketHeader(packetType, packetLabel, packetLength);
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}
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/**
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* Parses the necessary info of an MPEG-H frame into the FrameInfo structure.
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*
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* @param data The bit array to parse, positioned at the start of the MHAS frame.
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* @param prevFrameInfo A previously obtained FrameInfo.
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* @return FrameInfo of the current frame.
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* @return {@link FrameInfo} of the current frame.
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* @throws {@link ParseException} if parsing failed.
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*/
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public static FrameInfo parseFrame(ParsableBitArray data, FrameInfo prevFrameInfo)
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@ -329,7 +322,7 @@ public final class MpeghUtil {
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do {
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// parse MHAS packet header
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MHASPacketHeader packetHeader = parseMhasPacketHeader(data);
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MhasPacketHeader packetHeader = parseMhasPacketHeader(data);
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if (packetHeader.packetLabel > 0x10) {
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throw ParseException.createForUnsupportedSubstream(
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"Contains sub-stream with label " + packetHeader.packetLabel);
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@ -419,8 +412,7 @@ public final class MpeghUtil {
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} while (!frameFound);
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int nBits = data.bitsLeft();
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int parsedBytes = (nBitsIns - nBits) / 8;
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int parsedBytes = (nBitsIns - data.bitsLeft()) / 8;
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if (samplingFrequency <= 0) {
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throw ParseException.createForParsingError(
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@ -436,6 +428,21 @@ public final class MpeghUtil {
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mpegh3daProfileLevelIndication, compatibleSetIndication);
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}
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/**
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* Parses an MHAS packet header.
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* See ISO_IEC_23008-3;2022, 14.2.1, Table 222.
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*
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* @param data The bit array to parse.
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* @return The {@link MhasPacketHeader} info.
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* @throws {@link ParseException} if parsing failed, i.e. there is not enough data available.
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*/
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private static MhasPacketHeader parseMhasPacketHeader(ParsableBitArray data) throws ParseException {
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@MhasPacketType int packetType = (int) readEscapedValue(data, 3, 8, 8);
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long packetLabel = readEscapedValue(data, 2, 8, 32);
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int packetLength = (int) readEscapedValue(data, 11, 24, 24);
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return new MhasPacketHeader(packetType, packetLabel, packetLength);
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}
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/**
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* Obtains the sampling rate of the current MPEG-H frame.
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*
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@ -445,10 +452,9 @@ public final class MpeghUtil {
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*/
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public static int getSamplingFrequency(ParsableBitArray data) throws ParseException {
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int sampleRate;
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int idx;
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validateBitsAvailability(data, 5);
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idx = data.readBits(5);
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int idx = data.readBits(5);
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if (idx == 0x1F) {
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validateBitsAvailability(data, 24);
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@ -472,15 +478,12 @@ public final class MpeghUtil {
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*/
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public static long readEscapedValue(ParsableBitArray data, int bits1, int bits2, int bits3)
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throws ParseException {
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long value;
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long valueAdd;
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validateBitsAvailability(data, bits1);
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value = data.readBitsToLong(bits1);
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long value = data.readBitsToLong(bits1);
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if (value == (1L << bits1) - 1) {
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validateBitsAvailability(data, bits2);
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valueAdd = data.readBitsToLong(bits2);
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long valueAdd = data.readBitsToLong(bits2);
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value += valueAdd;
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if (valueAdd == (1L << bits2) - 1) {
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@ -492,29 +495,12 @@ public final class MpeghUtil {
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return value;
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}
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private static class Mpegh3daConfig {
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int mpegh3daProfileLevelIndication;
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int samplingFrequency;
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int standardFrameSamples;
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@Nullable
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byte[] compatibleProfileLevelSet;
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private Mpegh3daConfig() {
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this.mpegh3daProfileLevelIndication = Format.NO_VALUE;
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this.samplingFrequency = Format.NO_VALUE;
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this.standardFrameSamples = Format.NO_VALUE;
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this.compatibleProfileLevelSet = null;
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}
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}
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/**
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* Obtains the necessary info of the Mpegh3daConfig from an MPEG-H bit stream.
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* See ISO_IEC_23008-3;2022, 5.2.2.1, Table 15.
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*
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* @param data The bit array to be parsed.
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* @return The Mpegh3daConfig.
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* @return The {@link Mpegh3daConfig}.
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* @throws {@link ParseException} if parsing failed.
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*/
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private static Mpegh3daConfig parseMpegh3daConfig(ParsableBitArray data) throws ParseException {
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@ -633,8 +619,7 @@ public final class MpeghUtil {
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if (speakerLayoutType == 1) {
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validateBitsAvailability(data, 7 * numSpeakers);
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data.skipBits(7 * numSpeakers); // cicpSpeakerIdx per speaker
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}
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if (speakerLayoutType == 2) {
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} else if (speakerLayoutType == 2) {
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validateBitsAvailability(data, 1);
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boolean angularPrecision = data.readBit();
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int angularPrecisionDegrees = angularPrecision ? 1 : 5;
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@ -864,29 +849,31 @@ public final class MpeghUtil {
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private MpeghUtil() {
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}
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private static class MhasPacketHeader {
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@MhasPacketType int packetType;
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long packetLabel;
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int packetLength;
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||||
|
||||
public static class ParseException extends IOException {
|
||||
|
||||
public final @State int parseState;
|
||||
|
||||
public static ParseException createForNotEnoughData() {
|
||||
return new ParseException(null, null, STATE_END_OUTPUT);
|
||||
public MhasPacketHeader(@MhasPacketType int type, long label, int length) {
|
||||
packetType = type;
|
||||
packetLabel = label;
|
||||
packetLength = length;
|
||||
}
|
||||
}
|
||||
|
||||
public static ParseException createForUnsupportedSubstream(@Nullable String message) {
|
||||
return new ParseException(message, null, STATE_SUBSTREAM_UNSUPPORTED);
|
||||
}
|
||||
private static class Mpegh3daConfig {
|
||||
|
||||
public static ParseException createForParsingError(@Nullable String message) {
|
||||
return new ParseException(message, null, STATE_PARSE_ERROR);
|
||||
}
|
||||
int mpegh3daProfileLevelIndication;
|
||||
int samplingFrequency;
|
||||
int standardFrameSamples;
|
||||
@Nullable
|
||||
byte[] compatibleProfileLevelSet;
|
||||
|
||||
protected ParseException(
|
||||
@Nullable String message,
|
||||
@Nullable Throwable cause,
|
||||
@State int parseState) {
|
||||
super(message, cause);
|
||||
this.parseState = parseState;
|
||||
private Mpegh3daConfig() {
|
||||
this.mpegh3daProfileLevelIndication = Format.NO_VALUE;
|
||||
this.samplingFrequency = Format.NO_VALUE;
|
||||
this.standardFrameSamples = Format.NO_VALUE;
|
||||
this.compatibleProfileLevelSet = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -47,23 +47,23 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
|
|||
@UnstableApi
|
||||
public final class MpeghReader implements ElementaryStreamReader {
|
||||
|
||||
private static final String TAG = MpeghReader.class.getSimpleName();
|
||||
private static final String TAG = "MpeghReader";
|
||||
|
||||
private @MonotonicNonNull String formatId;
|
||||
private @MonotonicNonNull TrackOutput output;
|
||||
private final ParsableByteArray dataBuffer = new ParsableByteArray(0);
|
||||
private final ParsableBitArray dataBitBuffer = new ParsableBitArray();
|
||||
private int dataInBuffer = 0;
|
||||
private int dataInBuffer;
|
||||
|
||||
private MpeghUtil.FrameInfo prevFrameInfo = new MpeghUtil.FrameInfo();
|
||||
|
||||
// The timestamp to attach to the next sample in the current packet.
|
||||
private double timeUs;
|
||||
private double timeUsPending = C.TIME_UNSET;
|
||||
private boolean dataPending = false;
|
||||
private boolean dataPending;
|
||||
private boolean rapPending = true;
|
||||
private boolean raiSet = false;
|
||||
private boolean daiSet = false;
|
||||
private boolean raiSet;
|
||||
private boolean daiSet;
|
||||
|
||||
public MpeghReader() {
|
||||
clearDataBuffer();
|
||||
|
|
|
|||
Loading…
Reference in a new issue