+++ /dev/null
-/*
-** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU Lesser General Public License as published by
-** the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
-**
-** You should have received a copy of the GNU Lesser 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.
-*/
-
-#include "sfconfig.h"
-
-#include <stdio.h>
-#include <fcntl.h>
-#include <string.h>
-#include <ctype.h>
-
-#include "sndfile.h"
-#include "sfendian.h"
-#include "common.h"
-
-/*
-** Info from Olivier Tristan <o.tristan@ultimatesoundbank.com>
-**
-** HEADER
-** 2 magic bytes: 1 and 4.
-** 17 char for the name of the sample.
-** 3 bytes: level, tune and channels (0 for channels is mono while 1 is stereo)
-** 4 uint32: sampleStart, loopEnd, sampleFrames and loopLength
-** 1 byte: loopMode (0 no loop, 1 forward looping)
-** 1 byte: number of beat in loop
-** 1 uint16: sampleRate
-**
-** DATA
-** Data are always non compressed 16 bits interleaved
-*/
-
-#define HEADER_LENGTH 42 /* Sum of above data fields. */
-#define HEADER_NAME_LEN 17 /* Length of name string. */
-
-#define SFE_MPC_NO_MARKER 666
-
-/*------------------------------------------------------------------------------
-** Private static functions.
-*/
-
-static int mpc2k_close (SF_PRIVATE *psf) ;
-
-static int mpc2k_write_header (SF_PRIVATE *psf, int calc_length) ;
-static int mpc2k_read_header (SF_PRIVATE *psf) ;
-
-/*------------------------------------------------------------------------------
-** Public function.
-*/
-
-int
-mpc2k_open (SF_PRIVATE *psf)
-{ int error = 0 ;
-
- if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
- { if ((error = mpc2k_read_header (psf)))
- return error ;
- } ;
-
- if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_MPC2K)
- return SFE_BAD_OPEN_FORMAT ;
-
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { if (mpc2k_write_header (psf, SF_FALSE))
- return psf->error ;
-
- psf->write_header = mpc2k_write_header ;
- } ;
-
- psf->container_close = mpc2k_close ;
-
- psf->blockwidth = psf->bytewidth * psf->sf.channels ;
-
- error = pcm_init (psf) ;
-
- return error ;
-} /* mpc2k_open */
-
-/*------------------------------------------------------------------------------
-*/
-
-static int
-mpc2k_close (SF_PRIVATE *psf)
-{
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- mpc2k_write_header (psf, SF_TRUE) ;
-
- return 0 ;
-} /* mpc2k_close */
-
-static int
-mpc2k_write_header (SF_PRIVATE *psf, int calc_length)
-{ char sample_name [HEADER_NAME_LEN + 1] ;
- sf_count_t current ;
-
- if (psf->pipeoffset > 0)
- return 0 ;
-
- current = psf_ftell (psf) ;
-
- if (calc_length)
- { psf->filelength = psf_get_filelen (psf) ;
-
- psf->dataoffset = HEADER_LENGTH ;
- psf->datalength = psf->filelength - psf->dataoffset ;
-
- psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ;
- } ;
-
- /* Reset the current header length to zero. */
- psf->header [0] = 0 ;
- psf->headindex = 0 ;
-
- /*
- ** Only attempt to seek if we are not writng to a pipe. If we are
- ** writing to a pipe we shouldn't be here anyway.
- */
- if (psf->is_pipe == SF_FALSE)
- psf_fseek (psf, 0, SEEK_SET) ;
-
- snprintf (sample_name, sizeof (sample_name), "%s ", psf->file.name.c) ;
-
- psf_binheader_writef (psf, "e11b", 1, 4, sample_name, make_size_t (HEADER_NAME_LEN)) ;
- psf_binheader_writef (psf, "e111", 100, 0, (psf->sf.channels - 1) & 1) ;
- psf_binheader_writef (psf, "et4888", 0, psf->sf.frames, psf->sf.frames, psf->sf.frames) ;
- psf_binheader_writef (psf, "e112", 0, 1, (uint16_t) psf->sf.samplerate) ;
-
- /* Always 16 bit little endian data. */
- psf->bytewidth = 2 ;
- psf->endian = SF_ENDIAN_LITTLE ;
-
- psf_fwrite (psf->header, psf->headindex, 1, psf) ;
-
- if (psf->error)
- return psf->error ;
-
- psf->dataoffset = psf->headindex ;
-
- if (current > 0)
- psf_fseek (psf, current, SEEK_SET) ;
-
- return psf->error ;
-} /* mpc2k_write_header */
-
-static int
-mpc2k_read_header (SF_PRIVATE *psf)
-{ char sample_name [HEADER_NAME_LEN + 1] ;
- unsigned char bytes [4] ;
- uint32_t sample_start, loop_end, sample_frames, loop_length ;
- uint16_t sample_rate ;
-
- psf_binheader_readf (psf, "pebb", 0, bytes, 2, sample_name, make_size_t (HEADER_NAME_LEN)) ;
-
- if (bytes [0] != 1 || bytes [1] != 4)
- return SFE_MPC_NO_MARKER ;
-
- sample_name [HEADER_NAME_LEN] = 0 ;
-
- psf_log_printf (psf, "MPC2000\n Name : %s\n", sample_name) ;
-
- psf_binheader_readf (psf, "eb4444", bytes, 3, &sample_start, &loop_end, &sample_frames, &loop_length) ;
-
- psf->sf.channels = bytes [2] ? 2 : 1 ;
-
- psf_log_printf (psf, " Level : %d\n Tune : %d\n Stereo : %s\n", bytes [0], bytes [1], bytes [2] ? "Yes" : "No") ;
-
- psf_log_printf (psf, " Sample start : %d\n Loop end : %d\n Frames : %d\n Length : %d\n", sample_start, loop_end, sample_frames, loop_length) ;
-
- psf_binheader_readf (psf, "eb2", bytes, 2, &sample_rate) ;
-
- psf_log_printf (psf, " Loop mode : %s\n Beats : %d\n Sample rate : %d\nEnd\n", bytes [0] ? "None" : "Fwd", bytes [1], sample_rate) ;
-
- psf->sf.samplerate = sample_rate ;
-
- psf->sf.format = SF_FORMAT_MPC2K | SF_FORMAT_PCM_16 ;
-
- psf->dataoffset = psf_ftell (psf) ;
-
- /* Always 16 bit little endian data. */
- psf->bytewidth = 2 ;
- psf->endian = SF_ENDIAN_LITTLE ;
-
- psf->datalength = psf->filelength - psf->dataoffset ;
- psf->blockwidth = psf->sf.channels * psf->bytewidth ;
- psf->sf.frames = psf->datalength / psf->blockwidth ;
-
- psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ;
-
- return 0 ;
-} /* mpc2k_read_header */
-
projects / Faustine.git / blobdiff
