Capsim Block Documentation
This function performs the task of reading sample values in from an aiff file, and then placing them on its output buffer.
Num | Description | Type | Name | Default Value | |
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0 | Name of AIFF File | file | fileName | aiff.aif |
Num | Type | Name | Initial Value | Description |
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0 | int | obufs | ||
1 | int | j | 0 | |
2 | FILE* | fp | ||
3 | char* | sample_P | ||
4 | float* | x_P | ||
5 | float* | y_P | ||
6 | int | points | ||
7 | float | samplingRate | ||
8 | int | numberChannels | ||
9 | int | bits |
int i,k,k1; float x,y; short xsamp; unsigned char x0,x1; unsigned long xc0,xc1; |
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if( (obufs = NO_OUTPUT_BUFFERS()) < 1 ) { fprintf(stderr,"rdaiff: no output buffers\n"); return(1); } fp=fopen(fileName,"rb"); if(fp == NULL) { fprintf(stderr,"Error opening AIFF file\n"); return(2); } if(IIP_ReadAIFF(NULL,&x_P,&y_P,&points,&samplingRate, &bits,NULL,&numberChannels,fp,NULL)) { fprintf(stderr,"rdaiff: Trouble reading AIFF File\n"); return(3); } fprintf(stderr,"AIFF: Points=%d\n",points); fprintf(stderr,"AIFF: Sampling Rate=%f\n",samplingRate); fprintf(stderr,"AIFF: Bits=%d\n",bits); fprintf(stderr,"AIFF: Channels=%d\n",numberChannels); if(numberChannels > 2) { fprintf(stderr,"rdaiff: Only two channels supported\n"); fclose(fp); return(6); } if(bits <= 8) { /* * allocate array to store samples */ sample_P=(char*)calloc(numberChannels*NUMBER_SAMPLES_PER_VISIT,sizeof(char)); if(sample_P == NULL) { fprintf(stderr,"Could not allocate space in rdaiff\n"); return(4); } } else { x_P=(float*)calloc(NUMBER_SAMPLES_PER_VISIT*numberChannels,sizeof(float)); if(x_P==NULL) { fprintf(stderr,"rdaiff: Could not allocate space\n"); return(5); } } |
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if(bits <= 8) { if(fread(sample_P,sizeof(char),numberChannels*NUMBER_SAMPLES_PER_VISIT,fp)==(int)NULL) return(0); } else if(bits <= 16) { for(i=0; i |
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fclose(fp); |
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/* Capsim (r) Text Mode Kernel (TMK) Star Library (Blocks) Copyright (C) 1989-2017 Silicon DSP Corporation This library 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 library 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 library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA http://www.silicondsp.com Silicon DSP Corporation Las Vegas, Nevada */ |
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/* rdaiff() *************************************************************** This function performs the task of reading sample values in from an aiff file, and then placing them on it's output buffer. If more than one output buffer is connected, then the samples are routed to each buffer in sequence mod the number of buffers. |
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