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libogg documentation

libogg release 1.3.0 - 20110804

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ogg_sync_pageout

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declared in "ogg/ogg.h";

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This function takes the data stored in the buffer of the ogg_sync_state struct and inserts them into an ogg_page. Chris@1: Chris@1:

In an actual decoding loop, this function should be called first to ensure that the buffer is cleared. The example code below illustrates a clean reading loop which will fill and output pages. Chris@1:

Caution:This function should be called before reading into the buffer to ensure that data does not remain in the ogg_sync_state struct. Failing to do so may result in a memory leak. See the example code below for details. Chris@1: Chris@1:

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Chris@1: int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og);
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Parameters

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oy
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Pointer to a previously declared ogg_sync_state struct. Normally, the internal storage of this struct should be filled with newly read data and verified using ogg_sync_wrote.
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og
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Pointer to page struct filled by this function. Chris@1:
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Return Values

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  • -1 returned if stream has not yet captured sync (bytes were skipped).
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  • 0 returned if more data needed or an internal error occurred.
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  • 1 indicated a page was synced and returned.
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    Example Usage

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    Chris@1: if (ogg_sync_pageout(&oy, &og) != 1) {
Chris@1: 	buffer = ogg_sync_buffer(&oy, 8192);
Chris@1: 	bytes = fread(buffer, 1, 8192, stdin);
Chris@1: 	ogg_sync_wrote(&oy, bytes);
Chris@1: }
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    copyright © 2000-2011 Xiph.Org

    Ogg Container Format

    libogg documentation

    libogg release 1.3.0 - 20110804

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