pub fn decode_stream(
reader: &mut impl Read,
ignore_garbage: bool,
writer: &mut impl Write,
) -> Result<()>Expand description
Stream-decode from a reader to a writer. Used for stdin processing. Fused single-pass: read chunk -> strip whitespace -> decode immediately. Uses 4MB read buffer to match the enlarged pipe buffer size (set by fbase64.rs). Larger buffers (16MB) waste memory since pipes deliver at most 4MB per read. memchr2-based SIMD whitespace stripping handles the common case efficiently.