+++ /dev/null
-/*
- synth_8bit.h: Wrappers over optimized synth_xtoy for converting signed short to 8bit.
-
- copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1
- see COPYING and AUTHORS files in distribution or http://mpg123.org
- initially written by Michael Hipp, code generalized to the wrapper by Thomas Orgis
-
- Only variable is the BLOCK size to choose 1to1, 2to1 or 4to1.
- Oh, and the names: BASE_SYNTH_NAME, SYNTH_NAME, MONO_NAME, MONO2STEREO_NAME
- (p.ex. opt_synth_1to1(fr), synth_1to1_8bit, synth_1to1_8bit_mono, ...).
-*/
-
-int SYNTH_NAME(real *bandPtr, int channel, mpg123_handle *fr, int final)
-{
- short samples_tmp[BLOCK];
- short *tmp1 = samples_tmp + channel;
- int i,ret;
-
- unsigned char *samples = fr->buffer.data;
- int pnt = fr->buffer.fill;
- fr->buffer.data = (unsigned char*) samples_tmp;
- fr->buffer.fill = 0;
- ret = BASE_SYNTH_NAME(bandPtr, channel, fr , 0);
- fr->buffer.data = samples;
-
- samples += channel + pnt;
- for(i=0;i<(BLOCK/2);i++)
- {
- *samples = fr->conv16to8[*tmp1>>AUSHIFT];
- samples += 2;
- tmp1 += 2;
- }
- fr->buffer.fill = pnt + (final ? BLOCK : 0 );
-
- return ret;
-}
-
-int MONO_NAME(real *bandPtr, mpg123_handle *fr)
-{
- short samples_tmp[BLOCK];
- short *tmp1 = samples_tmp;
- int i,ret;
-
- unsigned char *samples = fr->buffer.data;
- int pnt = fr->buffer.fill;
- fr->buffer.data = (unsigned char*) samples_tmp;
- fr->buffer.fill = 0;
- ret = BASE_SYNTH_NAME(bandPtr, 0, fr, 0);
- fr->buffer.data = samples;
-
- samples += pnt;
- for(i=0;i<(BLOCK/2);i++)
- {
- *samples++ = fr->conv16to8[*tmp1>>AUSHIFT];
- tmp1+=2;
- }
- fr->buffer.fill = pnt + BLOCK/2;
-
- return ret;
-}
-
-int MONO2STEREO_NAME(real *bandPtr, mpg123_handle *fr)
-{
- short samples_tmp[BLOCK];
- short *tmp1 = samples_tmp;
- int i,ret;
-
- unsigned char *samples = fr->buffer.data;
- int pnt = fr->buffer.fill;
- fr->buffer.data = (unsigned char*) samples_tmp;
- fr->buffer.fill = 0;
- ret = BASE_SYNTH_NAME(bandPtr, 0, fr, 0);
- fr->buffer.data = samples;
-
- samples += pnt;
- for(i=0;i<(BLOCK/2);i++)
- {
- *samples++ = fr->conv16to8[*tmp1>>AUSHIFT];
- *samples++ = fr->conv16to8[*tmp1>>AUSHIFT];
- tmp1 += 2;
- }
- fr->buffer.fill = pnt + BLOCK;
-
- return ret;
-}
-