diff options
Diffstat (limited to 'src/outputBuffer.c')
| -rw-r--r-- | src/outputBuffer.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/outputBuffer.c b/src/outputBuffer.c index f5a6dbf51..b5fddd98d 100644 --- a/src/outputBuffer.c +++ b/src/outputBuffer.c @@ -65,6 +65,23 @@ unsigned availableOutputBuffer(const OutputBuffer * cb) return cb->end + buffered_chunks - cb->begin; } +int outputBufferAbsolute(const OutputBuffer * cb, unsigned relative) +{ + unsigned i, max; + + max = cb->end; + if (max < cb->begin) + max += buffered_chunks; + i = (unsigned)cb->begin + relative; + if (i >= max) + return -1; + + if (i >= buffered_chunks) + i -= buffered_chunks; + + return (int)i; +} + /** * Return the tail chunk has room for additional data. If there is no * room in the queue, this function blocks until the player thread has |