Chris@0: 
Chris@0:  libmad - MPEG audio decoder library
Chris@0:  Copyright (C) 2000-2004 Underbit Technologies, Inc.
Chris@0: 
Chris@0:  $Id: TODO,v 1.3 2004/02/05 09:02:39 rob Exp $
Chris@0: 
Chris@0: ===============================================================================
Chris@0: 
Chris@0: libmad:
Chris@0:   - more API layers (buffering, PCM samples, dithering, etc.)
Chris@0:   - x86 performance optimization compiler flags
Chris@0:   - function documentation, general docs
Chris@0:   - finish async API
Chris@0:   - parse system streams?
Chris@0:   - MPEG-2 MC, AAC?
Chris@0:   - logarithmic multiplication?
Chris@0:   - multiple frame decoding for better locality of reference?
Chris@0:   - frame serial numbers, Layer III frame continuity checks
Chris@0: 
Chris@0: fixed.h:
Chris@0:   - experiment with FPM_INTEL:
Chris@0: 
Chris@0: # if 1
Chris@0: #    define mad_f_scale64(hi, lo)  \
Chris@0:     ({ mad_fixed_t __result;  \
Chris@0:        asm ("shrl %3,%1\n\t"  \
Chris@0: 	    "shll %4,%2\n\t"  \
Chris@0: 	    "orl %2,%1"  \
Chris@0: 	    : "=rm" (__result)  \
Chris@0: 	    : "0" (lo), "r" (hi),  \
Chris@0: 	      "I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS)  \
Chris@0: 	    : "cc");  \
Chris@0:        __result;  \
Chris@0:     })
Chris@0: # else
Chris@0: #    define mad_f_scale64(hi, lo)  \
Chris@0:     ({ mad_fixed64hi_t __hi_;  \
Chris@0:        mad_fixed64lo_t __lo_;  \
Chris@0:        mad_fixed_t __result;  \
Chris@0:        asm ("sall %2,%1"  \
Chris@0: 	    : "=r" (__hi_)  \
Chris@0: 	    : "0" (hi), "I" (32 - MAD_F_SCALEBITS)  \
Chris@0: 	    : "cc");  \
Chris@0:        asm ("shrl %2,%1"  \
Chris@0: 	    : "=r" (__lo_)  \
Chris@0: 	    : "0" (lo), "I" (MAD_F_SCALEBITS)  \
Chris@0: 	    : "cc");  \
Chris@0:        asm ("orl %1,%2"  \
Chris@0: 	    : "=rm" (__result)  \
Chris@0: 	    : "r" (__hi_), "0" (__lo_)  \
Chris@0: 	    : "cc");  \
Chris@0:        __result;  \
Chris@0:     })
Chris@0: # endif
Chris@0: 
Chris@0: libmad Layer I:
Chris@0:   - check frame length sanity
Chris@0: 
Chris@0: libmad Layer II:
Chris@0:   - check frame length sanity
Chris@0: 
Chris@0: libmad Layer III:
Chris@0:   - circular buffer
Chris@0:   - optimize zero_part from Huffman decoding throughout
Chris@0:   - MPEG 2.5 8000 Hz sf bands? mixed blocks?
Chris@0:   - stereo->mono conversion optimization?
Chris@0:   - enable frame-at-a-time decoding
Chris@0:   - improve portability of huffman.c
Chris@0: