cb78646baf
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6052 a1c6a512-1295-4272-9138-f99709370657
169 lines
4 KiB
C
169 lines
4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Björn Stenberg
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#if (CONFIG_HWCODEC == MASNONE)
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/* software codec platforms */
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#include <codecs/Tremor/ivorbisfile.h>
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#include "lib/xxx2wav.h" /* Helper functions common to test decoders */
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static struct plugin_api* rb;
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/* Some standard functions and variables needed by Tremor */
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int errno;
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size_t strlen(const char *s) {
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return(rb->strlen(s));
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}
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char *strcpy(char *dest, const char *src) {
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return(rb->strcpy(dest,src));
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}
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char *strcat(char *dest, const char *src) {
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return(rb->strcat(dest,src));
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}
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size_t read_handler(void *ptr, size_t size, size_t nmemb, void *datasource) {
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size_t len;
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file_info_struct *p = (file_info_struct *) datasource;
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if (p->curpos >= p->filesize) {
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return 0; /* EOF */
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}
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len=nmemb*size;
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if ((long)(p->curpos+len) > (long)p->filesize) { len=p->filesize-p->curpos; }
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rb->memcpy(ptr,&filebuf[p->curpos],len);
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p->curpos+=len;
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return(len);
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}
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int seek_handler(void *datasource, ogg_int64_t offset, int whence) {
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/* We are not seekable at the moment */
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(void)datasource;
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(void)offset;
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(void)whence;
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return -1;
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}
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int close_handler(void *datasource) {
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(void)datasource;
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return 0;
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}
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long tell_handler(void *datasource) {
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file_info_struct *p = (file_info_struct *) datasource;
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return p->curpos;
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}
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/* this is the plugin entry point */
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enum plugin_status plugin_start(struct plugin_api* api, void* file)
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{
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ov_callbacks callbacks;
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OggVorbis_File vf;
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vorbis_info* vi;
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int error;
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long n;
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int current_section;
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int eof;
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static char pcmbuf[4096];
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#if BYTE_ORDER == BIG_ENDIAN
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int i;
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char x;
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#endif
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file_info_struct file_info;
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TEST_PLUGIN_API(api);
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/* if you are using a global api pointer, don't forget to copy it!
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otherwise you will get lovely "I04: IllInstr" errors... :-) */
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rb = api;
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/* This function sets up the buffers and reads the file into RAM */
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if (local_init(file,"/vorbistest.wav",&file_info,api)) {
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return PLUGIN_ERROR;
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}
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/* Create a decoder instance */
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callbacks.read_func=read_handler;
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callbacks.seek_func=seek_handler;
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callbacks.tell_func=tell_handler;
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callbacks.close_func=close_handler;
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file_info.frames_decoded=0;
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file_info.start_tick=*(rb->current_tick);
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rb->button_clear_queue();
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error=ov_open_callbacks(&file_info,&vf,NULL,0,callbacks);
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vi=ov_info(&vf,-1);
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if (vi==NULL) {
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rb->splash(HZ*2, true, "Error");
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}
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file_info.samplerate=vi->rate;
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eof=0;
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while (!eof) {
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/* Read host-endian signed 16 bit PCM samples */
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n=ov_read(&vf,pcmbuf,sizeof(pcmbuf),¤t_section);
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if (n==0) {
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eof=1;
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} else if (n < 0) {
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DEBUGF("Error decoding frame\n");
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} else {
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file_info.frames_decoded++;
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#if BYTE_ORDER == BIG_ENDIAN
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for (i=0;i<n;i+=2) {
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x=pcmbuf[i]; pcmbuf[i]=pcmbuf[i+1]; pcmbuf[i+1]=x;
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}
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#endif
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rb->write(file_info.outfile,pcmbuf,n);
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file_info.current_sample+=(n/4);
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}
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display_status(&file_info);
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if (rb->button_get(false)!=BUTTON_NONE) {
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close_wav(&file_info);
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return PLUGIN_OK;
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}
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}
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close_wav(&file_info);
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rb->splash(HZ*2, true, "FINISHED!");
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return PLUGIN_OK;
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}
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#endif /* CONFIG_HWCODEC == MASNONE */
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