./configure --host=arm-linux-gnueabihf  --disable-debugging --prefix=/home/ban/madplay/source CPPFLAGS=-I/home/ban/madplay/source/include LDFLAGS=-L/home/ban/madplay/source/lib
make 
make install

./configure --host=arm-linux-gnueabihf  --disable-debugging --prefix=/home/ban/madplay/source CPPFLAGS=-I/home/ban/madplay/source/include LDFLAGS=-L/home/ban/madplay/source/lib
make
make install

cc1: error: unrecognized command line option “-fforce-mem”

sed -i '/-fforce-mem/d' configure

./configure --host=arm-linux-gnueabihf --prefix=/usr/local/libmad_arm --enable-shared --enable-static --enable-fpm=arm --
with-gnu-ld=arm-linux-gnueabihf-ld --build=arm

/tmp/ccf2FxyW.s:1299: Error: selected processor does not support Thumb mode `rsc r0,r0,#0'
/tmp/ccf2FxyW.s:1435: Error: selected processor does not support Thumb mode `rsc r8,r8,#0'
/tmp/ccf2FxyW.s:1857: Error: selected processor does not support Thumb mode `rsc r0,r0,#0'
/tmp/ccf2FxyW.s:1996: Error: selected processor does not support Thumb mode `rsc r0,r0,#0

#  define MAD_F_MLN(hi, lo)  \
    asm ("rsbs  %0, %2, #0\n\t"  \
         "rsc   %1, %3, #0"  \
         : "=r" (lo), "=r" (hi)  \
         : "0" (lo), "1" (hi)  \
         : "cc")

#ifdef __thumb__
/* In Thumb-2, the RSB-immediate instruction is only allowed with a zero
operand. If needed this code can also support Thumb-1 
(simply append "s" to the end of the second two instructions). */
# define MAD_F_MLN(hi, lo) \
asm ("rsbs %0, %0, #0\n\t" \
"       sbc %1, %1, %1\n\t" \
        "sub %1, %1, %2" \
        : "+&r" (lo), "=&r" (hi) \
        : "r" (hi) \
        : "cc")
#else /* ! __thumb__ */
# define MAD_F_MLN(hi, lo) \
        asm ("rsbs %0, %2, #0\n\t" \
        "rsc %1, %3, #0" \
         : "=r" (lo), "=r" (hi) \
          : "=&r" (lo), "=r" (hi) \
          : "0" (lo), "1" (hi) \
          : "cc")
#endif /* __thumb__ */

./configure --host=arm-linux-gnueabihf CC=arm-linux-gnueabihf-gcc --disable-debugging --with-alsa CPPFLAGS=-I/home/ban/madplay/source/include LDFLAGS=-L/home/ban/madplay/source/lib
make 
make install

/*
 * libmad - MPEG audio decoder library
 * Copyright (C) 2000-2004 Underbit Technologies, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * $Id: minimad.c,v 1.4 2004/01/23 09:41:32 rob Exp $
 */
# include <stdio.h>
# include <unistd.h>
# include <sys/stat.h>
# include <sys/mman.h>
# include "mad.h"
/*
 * This is perhaps the simplest example use of the MAD high-level API.
 * Standard input is mapped into memory via mmap(), then the high-level API
 * is invoked with three callbacks: input, output, and error. The output
 * callback converts MAD's high-resolution PCM samples to 16 bits, then
 * writes them to standard output in little-endian, stereo-interleaved
 * format.
 */
static int decode(unsigned char const *, unsigned long);
int main(int argc, char *argv[])
{
  struct stat stat;
  void *fdm;
  if (argc != 1)
    return 1;
  if (fstat(STDIN_FILENO, &stat) == -1 ||
      stat.st_size == 0)
    return 2;
  fdm = mmap(0, stat.st_size, PROT_READ, MAP_SHARED, STDIN_FILENO, 0);
  if (fdm == MAP_FAILED)
    return 3;
  decode(fdm, stat.st_size);
  if (munmap(fdm, stat.st_size) == -1)
    return 4;
  return 0;
}
/*
 * This is a private message structure. A generic pointer to this structure
 * is passed to each of the callback functions. Put here any data you need
 * to access from within the callbacks.
 */
struct buffer {
  unsigned char const *start;
  unsigned long length;
};
/*
 * This is the input callback. The purpose of this callback is to (re)fill
 * the stream buffer which is to be decoded. In this example, an entire file
 * has been mapped into memory, so we just call mad_stream_buffer() with the
 * address and length of the mapping. When this callback is called a second
 * time, we are finished decoding.
 */
static
enum mad_flow input(void *data,
        struct mad_stream *stream)
{
  struct buffer *buffer = data;
  if (!buffer->length)
    return MAD_FLOW_STOP;
  mad_stream_buffer(stream, buffer->start, buffer->length);
  buffer->length = 0;
  return MAD_FLOW_CONTINUE;
}
/*
 * The following utility routine performs simple rounding, clipping, and
 * scaling of MAD's high-resolution samples down to 16 bits. It does not
 * perform any dithering or noise shaping, which would be recommended to
 * obtain any exceptional audio quality. It is therefore not recommended to
 * use this routine if high-quality output is desired.
 */
static inline
signed int scale(mad_fixed_t sample)
{
  /* round */
  sample += (1L << (MAD_F_FRACBITS - 16));
  /* clip */
  if (sample >= MAD_F_ONE)
    sample = MAD_F_ONE - 1;
  else if (sample < -MAD_F_ONE)
    sample = -MAD_F_ONE;
  /* quantize */
  return sample >> (MAD_F_FRACBITS + 1 - 16);
}
/*
 * This is the output callback function. It is called after each frame of
 * MPEG audio data has been completely decoded. The purpose of this callback
 * is to output (or play) the decoded PCM audio.
 */
static
enum mad_flow output(void *data,
         struct mad_header const *header,
         struct mad_pcm *pcm)
{
  unsigned int nchannels, nsamples;
  mad_fixed_t const *left_ch, *right_ch;
  /* pcm->samplerate contains the sampling frequency */
  nchannels = pcm->channels;
  nsamples  = pcm->length;
  left_ch   = pcm->samples[0];
  right_ch  = pcm->samples[1];
  while (nsamples--) {
    signed int sample;
    /* output sample(s) in 16-bit signed little-endian PCM */
    sample = scale(*left_ch++);
    putchar((sample >> 0) & 0xff);
    putchar((sample >> 8) & 0xff);
    if (nchannels == 2) {
      sample = scale(*right_ch++);
      putchar((sample >> 0) & 0xff);
      putchar((sample >> 8) & 0xff);
    }
  }
  return MAD_FLOW_CONTINUE;
}
/*
 * This is the error callback function. It is called whenever a decoding
 * error occurs. The error is indicated by stream->error; the list of
 * possible MAD_ERROR_* errors can be found in the mad.h (or stream.h)
 * header file.
 */
static
enum mad_flow error(void *data,
        struct mad_stream *stream,
        struct mad_frame *frame)
{
  struct buffer *buffer = data;
  fprintf(stderr, "decoding error 0x%04x (%s) at byte offset %u\n",
    stream->error, mad_stream_errorstr(stream),
    stream->this_frame - buffer->start);
  /* return MAD_FLOW_BREAK here to stop decoding (and propagate an error) */
  return MAD_FLOW_CONTINUE;
}
/*
 * This is the function called by main() above to perform all the decoding.
 * It instantiates a decoder object and configures it with the input,
 * output, and error callback functions above. A single call to
 * mad_decoder_run() continues until a callback function returns
 * MAD_FLOW_STOP (to stop decoding) or MAD_FLOW_BREAK (to stop decoding and
 * signal an error).
 */
static
int decode(unsigned char const *start, unsigned long length)
{
  struct buffer buffer;
  struct mad_decoder decoder;
  int result;
  /* initialize our private message structure */
  buffer.start  = start;
  buffer.length = length;
  /* configure input, output, and error functions */
  mad_decoder_init(&decoder, &buffer,
       input, 0 /* header */, 0 /* filter */, output,
       error, 0 /* message */);
  /* start decoding */
  result = mad_decoder_run(&decoder, MAD_DECODER_MODE_SYNC);
  /* release the decoder */
  mad_decoder_finish(&decoder);
  return result;
}