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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Björn Stenberg
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#if (CONFIG_HWCODEC == MASNONE)
/* software codec platforms */
#include <codecs/Tremor/ivorbisfile.h>
#include "lib/xxx2wav.h" /* Helper functions common to test decoders */
static struct plugin_api* rb;
/* Some standard functions and variables needed by Tremor */
int errno;
size_t strlen(const char *s) {
return(rb->strlen(s));
}
char *strcpy(char *dest, const char *src) {
return(rb->strcpy(dest,src));
}
char *strcat(char *dest, const char *src) {
return(rb->strcat(dest,src));
}
size_t read_handler(void *ptr, size_t size, size_t nmemb, void *datasource) {
size_t len;
file_info_struct *p = (file_info_struct *) datasource;
if (p->curpos >= p->filesize) {
return 0; /* EOF */
}
len=nmemb*size;
if ((long)(p->curpos+len) > (long)p->filesize) { len=p->filesize-p->curpos; }
rb->memcpy(ptr,&filebuf[p->curpos],len);
p->curpos+=len;
return(len);
}
int seek_handler(void *datasource, ogg_int64_t offset, int whence) {
/* We are not seekable at the moment */
(void)datasource;
(void)offset;
(void)whence;
return -1;
}
int close_handler(void *datasource) {
(void)datasource;
return 0;
}
long tell_handler(void *datasource) {
file_info_struct *p = (file_info_struct *) datasource;
return p->curpos;
}
#ifdef USE_IRAM
extern char iramcopy[];
extern char iramstart[];
extern char iramend[];
#endif
/* this is the plugin entry point */
enum plugin_status plugin_start(struct plugin_api* api, void* file)
{
ov_callbacks callbacks;
OggVorbis_File vf;
vorbis_info* vi;
int error;
long n;
int current_section;
int eof;
static char pcmbuf[4096];
#if BYTE_ORDER == BIG_ENDIAN
int i;
char x;
#endif
file_info_struct file_info;
TEST_PLUGIN_API(api);
/* if you are using a global api pointer, don't forget to copy it!
otherwise you will get lovely "I04: IllInstr" errors... :-) */
rb = api;
#ifdef USE_IRAM
rb->memcpy(iramstart, iramcopy, iramend-iramstart);
#endif
/* This function sets up the buffers and reads the file into RAM */
if (local_init(file,"/vorbistest.wav",&file_info,api)) {
return PLUGIN_ERROR;
}
/* Create a decoder instance */
callbacks.read_func=read_handler;
callbacks.seek_func=seek_handler;
callbacks.tell_func=tell_handler;
callbacks.close_func=close_handler;
file_info.frames_decoded=0;
file_info.start_tick=*(rb->current_tick);
rb->button_clear_queue();
error=ov_open_callbacks(&file_info,&vf,NULL,0,callbacks);
vi=ov_info(&vf,-1);
if (vi==NULL) {
rb->splash(HZ*2, true, "Error");
}
file_info.samplerate=vi->rate;
eof=0;
while (!eof) {
/* Read host-endian signed 16 bit PCM samples */
n=ov_read(&vf,pcmbuf,sizeof(pcmbuf),¤t_section);
if (n==0) {
eof=1;
} else if (n < 0) {
DEBUGF("Error decoding frame\n");
} else {
file_info.frames_decoded++;
#if BYTE_ORDER == BIG_ENDIAN
for (i=0;i<n;i+=2) {
x=pcmbuf[i]; pcmbuf[i]=pcmbuf[i+1]; pcmbuf[i+1]=x;
}
#endif
rb->write(file_info.outfile,pcmbuf,n);
file_info.current_sample+=(n/4);
}
display_status(&file_info);
if (rb->button_get(false)!=BUTTON_NONE) {
close_wav(&file_info);
return PLUGIN_OK;
}
}
close_wav(&file_info);
rb->splash(HZ*2, true, "FINISHED!");
return PLUGIN_OK;
}
#endif /* CONFIG_HWCODEC == MASNONE */
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