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<head>
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<title>Vorbisfile - function - ov_pcm_seek_lap</title>
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<link rel=stylesheet href="style.css" type="text/css">
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</head>
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<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
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Vorbisfile documentation
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vorbisfile version 1.3.2 - 20101101
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ov_pcm_seek_lap
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declared in "vorbis/vorbisfile.h";
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Seeks to the offset specified (in pcm samples) within the physical bitstream. This variant of
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href="ov_pcm_seek.html">ov_pcm_seek also automatically
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crosslaps the transition from the previous playback position into the
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new playback position in order to eliminate clicking and boundary
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discontinuities. Otherwise, usage and behavior is identical to
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href="ov_pcm_seek.html">ov_pcm_seek.
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ov_pcm_seek_lap also updates everything needed within the decoder,
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so you can immediately call ov_read() and
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get data from the newly seeked to position.
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ov_pcm_seek_lap will lap between logical stream links of differing
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numbers of channels. Any extra channels from the origin of the seek
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are ignored; playback of these channels simply ends. Extra channels at
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the destination are lapped from silence. ov_pcm_seek_lap will also
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lap between logical stream links of differing sample rates. In this
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case, the sample rates are ignored (no implicit resampling is done to
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match playback). It is up to the application developer to decide if
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this behavior makes any sense in a given context; in practical use,
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these default behaviors perform sensibly.
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This function only works for seekable streams.
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int ov_pcm_seek_lap(OggVorbis_File *vf,ogg_int64_t pos);
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Parameters
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vf
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A pointer to the OggVorbis_File structure--this is used for ALL the externally visible libvorbisfile
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functions.
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pos
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Position in pcm samples to seek to in the bitstream.
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Return Values
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0 for success
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nonzero indicates failure, described by several error codes:
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OV_ENOSEEK - Bitstream is not seekable.
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OV_EINVAL - Invalid argument value; possibly called with an OggVorbis_File structure that isn't open.
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OV_EREAD - A read from media returned an error.
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OV_EFAULT - Internal logic fault; indicates a bug or heap/stack
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corruption.
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OV_EOF - Indicates stream is at end of file immediately after a seek
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(making crosslap impossible as there's no preceeding decode state to crosslap).
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OV_EBADLINK - Invalid stream section supplied to libvorbisfile, or the requested link is corrupt.
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copyright © 2000-2010 Xiph.Org
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Ogg Vorbis
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Vorbisfile documentation
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vorbisfile version 1.3.2 - 20101101
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</body>
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</html>
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