Class VorbisUtil
- java.lang.Object
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- com.google.android.exoplayer2.extractor.VorbisUtil
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@Deprecated public final class VorbisUtil extends Object
Deprecated.com.google.android.exoplayer2 is deprecated. Please migrate to androidx.media3 (which contains the same ExoPlayer code). See the migration guide for more details, including a script to help with the migration.Utility methods for parsing Vorbis streams.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
VorbisUtil.CommentHeader
Deprecated.Vorbis comment header.static class
VorbisUtil.Mode
Deprecated.Vorbis setup header modes.static class
VorbisUtil.VorbisIdHeader
Deprecated.Vorbis identification header.
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Method Summary
All Methods Static Methods Concrete Methods Deprecated Methods Modifier and Type Method Description static int
iLog(int x)
Deprecated.Returns ilog(x), which is the index of the highest set bit inx
.static Metadata
parseVorbisComments(List<String> vorbisComments)
Deprecated.Builds aMetadata
instance from a list of Vorbis Comments.static VorbisUtil.CommentHeader
readVorbisCommentHeader(ParsableByteArray headerData)
Deprecated.Reads a Vorbis comment header.static VorbisUtil.CommentHeader
readVorbisCommentHeader(ParsableByteArray headerData, boolean hasMetadataHeader, boolean hasFramingBit)
Deprecated.Reads a Vorbis comment header.static VorbisUtil.VorbisIdHeader
readVorbisIdentificationHeader(ParsableByteArray headerData)
Deprecated.Reads a Vorbis identification header fromheaderData
.static VorbisUtil.Mode[]
readVorbisModes(ParsableByteArray headerData, int channels)
Deprecated.This method reads the modes which are located at the very end of the Vorbis setup header.static boolean
verifyVorbisHeaderCapturePattern(int headerType, ParsableByteArray header, boolean quiet)
Deprecated.Verifies whether the next bytes inheader
are a Vorbis header of the givenheaderType
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Method Detail
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iLog
public static int iLog(int x)
Deprecated.Returns ilog(x), which is the index of the highest set bit inx
.See the Vorbis spec
- Parameters:
x
- the value of which the ilog should be calculated.- Returns:
- ilog(x)
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readVorbisIdentificationHeader
public static VorbisUtil.VorbisIdHeader readVorbisIdentificationHeader(ParsableByteArray headerData) throws ParserException
Deprecated.Reads a Vorbis identification header fromheaderData
.- Parameters:
headerData
- aParsableByteArray
wrapping the header data.- Returns:
- a
VorbisUtil.VorbisIdHeader
with meta data. - Throws:
ParserException
- thrown if invalid capture pattern is detected.
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readVorbisCommentHeader
public static VorbisUtil.CommentHeader readVorbisCommentHeader(ParsableByteArray headerData) throws ParserException
Deprecated.Reads a Vorbis comment header.See the Vorbis spec/Comment header
- Parameters:
headerData
- AParsableByteArray
wrapping the header data.- Returns:
- A
VorbisUtil.CommentHeader
with all the comments. - Throws:
ParserException
- If an error occurs parsing the comment header.
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readVorbisCommentHeader
public static VorbisUtil.CommentHeader readVorbisCommentHeader(ParsableByteArray headerData, boolean hasMetadataHeader, boolean hasFramingBit) throws ParserException
Deprecated.Reads a Vorbis comment header.The data provided may not contain the Vorbis metadata common header and the framing bit.
See the Vorbis spec/Comment header
- Parameters:
headerData
- AParsableByteArray
wrapping the header data.hasMetadataHeader
- Whether theheaderData
contains a Vorbis metadata common header preceding the comment header.hasFramingBit
- Whether theheaderData
contains a framing bit.- Returns:
- A
VorbisUtil.CommentHeader
with all the comments. - Throws:
ParserException
- If an error occurs parsing the comment header.
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parseVorbisComments
@Nullable public static Metadata parseVorbisComments(List<String> vorbisComments)
Deprecated.Builds aMetadata
instance from a list of Vorbis Comments.METADATA_BLOCK_PICTURE comments will be transformed into
PictureFrame
entries. All others will be transformed intoVorbisComment
entries.- Parameters:
vorbisComments
- The raw input of comments, as a key-value pair KEY=VAL.- Returns:
- The fully parsed Metadata instance. Null if no vorbis comments could be parsed.
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verifyVorbisHeaderCapturePattern
public static boolean verifyVorbisHeaderCapturePattern(int headerType, ParsableByteArray header, boolean quiet) throws ParserException
Deprecated.Verifies whether the next bytes inheader
are a Vorbis header of the givenheaderType
.- Parameters:
headerType
- the type of the header expected.header
- the alleged header bytes.quiet
- iftrue
no exceptions are thrown. Insteadfalse
is returned.- Returns:
- the number of bytes read.
- Throws:
ParserException
- thrown if header type or capture pattern is not as expected.
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readVorbisModes
public static VorbisUtil.Mode[] readVorbisModes(ParsableByteArray headerData, int channels) throws ParserException
Deprecated.This method reads the modes which are located at the very end of the Vorbis setup header. That's why we need to partially decode or at least read the entire setup header to know where to start reading the modes.See the Vorbis spec/Setup header
- Parameters:
headerData
- aParsableByteArray
containing setup header data.channels
- the number of channels.- Returns:
- an array of
VorbisUtil.Mode
s. - Throws:
ParserException
- thrown if bit stream is invalid.
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