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https://github.com/ctruLua/ctruLua.git
synced 2025-10-27 16:39:29 +00:00
Added Tremor Ogg decoder, removed libvorbis from Makefile. OGG audio working perfectly.
Tremor is extremly similar to libogg but only uses integers (and doesn't provide an encoder). The playing problem with libvorbis was probably a float-precision related issue. No need for make build-all.
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Reuh
parent
c053997f96
commit
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97 changed files with 16571 additions and 15 deletions
265
libs/tremor/iseeking_example.dontcompile
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265
libs/tremor/iseeking_example.dontcompile
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/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
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* *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
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* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
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* *
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********************************************************************
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function: illustrate seeking, and test it too
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last mod: $Id$
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********************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include "ivorbiscodec.h"
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#include "ivorbisfile.h"
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#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */
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# include <io.h>
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# include <fcntl.h>
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#endif
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void _verify(OggVorbis_File *ov,
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ogg_int64_t val,
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ogg_int64_t pcmval,
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ogg_int64_t timeval,
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ogg_int64_t pcmlength,
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char *bigassbuffer){
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int j;
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long bread;
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char buffer[4096];
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int dummy;
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ogg_int64_t pos;
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/* verify the raw position, the pcm position and position decode */
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if(val!=-1 && ov_raw_tell(ov)<val){
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fprintf(stderr,"raw position out of tolerance: requested %ld, got %ld\n",
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(long)val,(long)ov_raw_tell(ov));
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exit(1);
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}
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if(pcmval!=-1 && ov_pcm_tell(ov)>pcmval){
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fprintf(stderr,"pcm position out of tolerance: requested %ld, got %ld\n",
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(long)pcmval,(long)ov_pcm_tell(ov));
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exit(1);
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}
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if(timeval!=-1 && ov_time_tell(ov)>timeval){
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fprintf(stderr,"time position out of tolerance: requested %ld, got %ld\n",
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(long)timeval,(long)ov_time_tell(ov));
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exit(1);
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}
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pos=ov_pcm_tell(ov);
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if(pos<0 || pos>pcmlength){
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fprintf(stderr,"pcm position out of bounds: got %ld\n",(long)pos);
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exit(1);
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}
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bread=ov_read(ov,buffer,4096,&dummy);
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if(bigassbuffer){
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for(j=0;j<bread;j++){
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if(buffer[j]!=bigassbuffer[j+pos*4]){
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fprintf(stderr,"data position after seek doesn't match pcm position\n");
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{
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FILE *f=fopen("a.m","w");
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for(j=0;j<bread;j++)fprintf(f,"%d\n",(int)buffer[j]);
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fclose(f);
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f=fopen("b.m","w");
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for(j=0;j<bread;j++)fprintf(f,"%d\n",(int)bigassbuffer[j+pos*2]);
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fclose(f);
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}
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exit(1);
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}
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}
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}
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}
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int main(){
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OggVorbis_File ov;
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int i,ret;
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ogg_int64_t pcmlength;
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ogg_int64_t timelength;
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char *bigassbuffer;
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int dummy;
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#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
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_setmode( _fileno( stdin ), _O_BINARY );
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#endif
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/* open the file/pipe on stdin */
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if(ov_open(stdin, &ov, NULL, 0) < 0) {
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fprintf(stderr,"Could not open input as an OggVorbis file.\n\n");
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exit(1);
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}
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if(ov_seekable(&ov)){
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/* to simplify our own lives, we want to assume the whole file is
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stereo. Verify this to avoid potentially mystifying users
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(pissing them off is OK, just don't confuse them) */
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for(i=0;i<ov.links;i++){
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vorbis_info *vi=ov_info(&ov,i);
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if(vi->channels!=2){
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fprintf(stderr,"Sorry; right now seeking_test can only use Vorbis files\n"
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"that are entirely stereo.\n\n");
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exit(1);
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}
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}
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/* because we want to do sample-level verification that the seek
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does what it claimed, decode the entire file into memory */
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pcmlength=ov_pcm_total(&ov,-1);
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timelength=ov_time_total(&ov,-1);
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bigassbuffer=malloc(pcmlength*4); /* w00t */
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if(bigassbuffer){
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i=0;
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while(i<pcmlength*4){
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int ret=ov_read(&ov,bigassbuffer+i,pcmlength*4-i,&dummy);
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if(ret<0)continue;
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if(ret){
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i+=ret;
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}else{
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pcmlength=i/4;
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}
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fprintf(stderr,"\rloading.... [%ld left] ",
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(long)(pcmlength*4-i));
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}
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}else{
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fprintf(stderr,"\rfile too large to load into memory for read tests;\n\tonly verifying seek positioning...\n");
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}
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{
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ogg_int64_t length=ov.end;
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fprintf(stderr,"\rtesting raw seeking to random places in %ld bytes....\n",
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(long)length);
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for(i=0;i<1000;i++){
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ogg_int64_t val=rand()*length/RAND_MAX;
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fprintf(stderr,"\r\t%d [raw position %ld]... ",i,(long)val);
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ret=ov_raw_seek(&ov,val);
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if(ret<0){
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fprintf(stderr,"seek failed: %d\n",ret);
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exit(1);
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}
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_verify(&ov,val,-1,-1.,pcmlength,bigassbuffer);
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}
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}
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fprintf(stderr,"\r");
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{
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fprintf(stderr,"testing pcm page seeking to random places in %ld samples....\n",
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(long)pcmlength);
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for(i=0;i<1000;i++){
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ogg_int64_t val=i==0?0:(double)rand()*pcmlength/RAND_MAX;
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fprintf(stderr,"\r\t%d [pcm position %ld]... ",i,(long)val);
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ret=ov_pcm_seek_page(&ov,val);
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if(ret<0){
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fprintf(stderr,"seek failed: %d\n",ret);
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exit(1);
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}
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_verify(&ov,-1,val,-1.,pcmlength,bigassbuffer);
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}
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}
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fprintf(stderr,"\r");
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{
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fprintf(stderr,"testing pcm exact seeking to random places in %ld samples....\n",
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(long)pcmlength);
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for(i=0;i<1000;i++){
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ogg_int64_t val=i==0?0:(double)rand()*pcmlength/RAND_MAX;
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fprintf(stderr,"\r\t%d [pcm position %ld]... ",i,(long)val);
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ret=ov_pcm_seek(&ov,val);
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if(ret<0){
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fprintf(stderr,"seek failed: %d\n",ret);
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exit(1);
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}
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if(ov_pcm_tell(&ov)!=val){
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fprintf(stderr,"Declared position didn't perfectly match request: %ld != %ld\n",
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(long)val,(long)ov_pcm_tell(&ov));
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exit(1);
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}
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_verify(&ov,-1,val,-1.,pcmlength,bigassbuffer);
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}
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}
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fprintf(stderr,"\r");
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{
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fprintf(stderr,"testing time page seeking to random places in %ld milliseconds....\n",
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(long)timelength);
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for(i=0;i<1000;i++){
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ogg_int64_t val=(double)rand()*timelength/RAND_MAX;
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fprintf(stderr,"\r\t%d [time position %ld]... ",i,(long)val);
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ret=ov_time_seek_page(&ov,val);
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if(ret<0){
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fprintf(stderr,"seek failed: %d\n",ret);
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exit(1);
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}
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_verify(&ov,-1,-1,val,pcmlength,bigassbuffer);
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}
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}
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fprintf(stderr,"\r");
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{
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fprintf(stderr,"testing time exact seeking to random places in %ld milliseconds....\n",
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(long)timelength);
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for(i=0;i<1000;i++){
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ogg_int64_t val=(double)rand()*timelength/RAND_MAX;
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fprintf(stderr,"\r\t%d [time position %ld]... ",i,(long)val);
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ret=ov_time_seek(&ov,val);
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if(ret<0){
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fprintf(stderr,"seek failed: %d\n",ret);
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exit(1);
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}
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if(ov_time_tell(&ov)<val-1 || ov_time_tell(&ov)>val+1){
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fprintf(stderr,"Declared position didn't perfectly match request: %ld != %ld\n",
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(long)val,(long)ov_time_tell(&ov));
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exit(1);
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}
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_verify(&ov,-1,-1,val,pcmlength,bigassbuffer);
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}
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}
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fprintf(stderr,"\r \nOK.\n\n");
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}else{
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fprintf(stderr,"Standard input was not seekable.\n");
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}
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ov_clear(&ov);
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return 0;
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}
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