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decoder/opus: move SeekFindEOS() to OggFind.cxx

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This commit is contained in:
Max Kellermann
2013-10-24 20:33:12 +02:00
parent f629eb8cb2
commit 92c85bd20d
3 changed files with 31 additions and 19 deletions
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19
src/decoder/OggFind.cxx
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@@ -20,6 +20,8 @@
#include "config.h"
#include "OggFind.hxx"
#include "OggSyncState.hxx"
#include "InputStream.hxx"
#include "util/Error.hxx"
bool
OggFindEOS(OggSyncState &oy, ogg_stream_state &os, ogg_packet &packet)
@@ -35,3 +37,20 @@ OggFindEOS(OggSyncState &oy, ogg_stream_state &os, ogg_packet &packet)
return true;
}
}
bool
OggSeekFindEOS(OggSyncState &oy, ogg_stream_state &os, ogg_packet &packet,
InputStream &is)
{
if (is.size > 0 && is.size - is.offset < 65536)
return OggFindEOS(oy, os, packet);
if (!is.CheapSeeking())
return false;
oy.Reset();
return is.LockSeek(-65536, SEEK_END, IgnoreError()) &&
oy.ExpectPageSeekIn(os) &&
OggFindEOS(oy, os, packet);
}