/********************************************************************
* *
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
- * THE GNU LESSER/LIBRARY PUBLIC LICENSE, WHICH IS INCLUDED WITH *
- * THIS SOURCE. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2000 *
- * by Monty <monty@xiph.org> and the XIPHOPHORUS Company *
- * http://www.xiph.org/ *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
function: illustrate seeking, and test it too
- last mod: $Id: seeking_example.c,v 1.5 2000/11/06 00:06:54 xiphmont Exp $
********************************************************************/
#include <stdio.h>
#include "vorbis/codec.h"
#include "vorbis/vorbisfile.h"
-#include "../lib/misc.h"
+
+#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */
+# include <io.h>
+# include <fcntl.h>
+#endif
+
+void _verify(OggVorbis_File *ov,
+ ogg_int64_t val,ogg_int64_t pcmval,double timeval,
+ ogg_int64_t pcmlength,
+ char *bigassbuffer){
+ off_t i;
+ int j;
+ long bread;
+ char buffer[4096];
+ int dummy;
+ ogg_int64_t pos;
+ int hs = ov_halfrate_p(ov);
+
+ /* verify the raw position, the pcm position and position decode */
+ if(val!=-1 && ov_raw_tell(ov)<val){
+ fprintf(stderr,"raw position out of tolerance: requested %ld, got %ld\n",
+ (long)val,(long)ov_raw_tell(ov));
+ exit(1);
+ }
+ if(pcmval!=-1 && ov_pcm_tell(ov)>pcmval){
+ fprintf(stderr,"pcm position out of tolerance: requested %ld, got %ld\n",
+ (long)pcmval,(long)ov_pcm_tell(ov));
+ exit(1);
+ }
+ if(timeval!=-1 && ov_time_tell(ov)>timeval){
+ fprintf(stderr,"time position out of tolerance: requested %f, got %f\n",
+ timeval,ov_time_tell(ov));
+ exit(1);
+ }
+ pos=ov_pcm_tell(ov);
+ if(pos<0 || pos>pcmlength){
+ fprintf(stderr,"pcm position out of bounds: got %ld\n",(long)pos);
+ exit(1);
+ }
+ bread=ov_read(ov,buffer,4096,1,1,1,&dummy);
+ for(j=0;j<bread;j++){
+ if(buffer[j]!=bigassbuffer[j+((pos>>hs)*2)]){
+ fprintf(stderr,"data after seek doesn't match declared pcm position %ld\n",(long)pos);
+
+ for(i=0;i<(pcmlength>>hs)*2-bread;i++){
+ for(j=0;j<bread;j++)
+ if(buffer[j] != bigassbuffer[i+j])break;
+ if(j==bread){
+ fprintf(stderr,"data after seek appears to match position %ld\n",(long)((i/2)<<hs));
+ }
+ }
+ {
+ FILE *f=fopen("a.m","w");
+ for(j=0;j<bread;j++)fprintf(f,"%d %d\n",j,(int)buffer[j]);
+ fclose(f);
+ f=fopen("b.m","w");
+ for(j=-4096;j<bread+4096;j++)
+ if(j+((pos*2)>>hs)>=0 && (j+((pos*2)>>hs))<(pcmlength>>hs)*2)
+ fprintf(f,"%d %d\n",j,(int)bigassbuffer[j+((pos*2)>>hs)]);
+ fclose(f);
+ }
+
+ exit(1);
+ }
+ }
+}
int main(){
OggVorbis_File ov;
- int i;
+ int i,ret;
+ ogg_int64_t pcmlength;
+ double timelength;
+ char *bigassbuffer;
+ int dummy;
+ int hs=0;
+
+#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
+ _setmode( _fileno( stdin ), _O_BINARY );
+#endif
+
/* open the file/pipe on stdin */
- if(ov_open(stdin,&ov,NULL,-1)<0){
- printf("Could not open input as an OggVorbis file.\n\n");
+ if(ov_open_callbacks(stdin,&ov,NULL,-1,OV_CALLBACKS_NOCLOSE)<0){
+ fprintf(stderr,"Could not open input as an OggVorbis file.\n\n");
exit(1);
}
-
- /* print details about each logical bitstream in the input */
+
+#if 0 /*enable this code to test seeking with halfrate decode */
+ if(ov_halfrate(&ov,1)){
+ fprintf(stderr,"Sorry; unable to set half-rate decode.\n\n");
+ exit(1);
+ }else
+ hs=1;
+#endif
+
if(ov_seekable(&ov)){
- double length=ov_time_total(&ov,-1);
- printf("testing seeking to random places in %g seconds....\n",length);
- for(i=0;i<100;i++){
- double val=(double)rand()/RAND_MAX*length;
- ov_time_seek(&ov,val);
- printf("\r\t%d [%gs]... ",i,val);
- fflush(stdout);
+
+ /* to simplify our own lives, we want to assume the whole file is
+ stereo. Verify this to avoid potentially mystifying users
+ (pissing them off is OK, just don't confuse them) */
+ for(i=0;i<ov.links;i++){
+ vorbis_info *vi=ov_info(&ov,i);
+ if(vi->channels!=2){
+ fprintf(stderr,"Sorry; right now seeking_test can only use Vorbis files\n"
+ "that are entirely stereo.\n\n");
+ exit(1);
+ }
+ }
+
+ /* because we want to do sample-level verification that the seek
+ does what it claimed, decode the entire file into memory */
+ pcmlength=ov_pcm_total(&ov,-1);
+ timelength=ov_time_total(&ov,-1);
+ bigassbuffer=malloc((pcmlength>>hs)*2); /* w00t */
+ i=0;
+ while(i<(pcmlength>>hs)*2){
+ int ret=ov_read(&ov,bigassbuffer+i,((pcmlength>>hs)*2)-i,1,1,1,&dummy);
+ if(ret<0){
+ fprintf(stderr,"Error reading file.\n");
+ exit(1);
+ }
+ if(ret){
+ i+=ret;
+ }else{
+ pcmlength=(i/2)<<hs;
+ }
+ fprintf(stderr,"\rloading.... [%ld left] ",
+ (long)((pcmlength>>hs)*2-i));
+ }
+
+ {
+ ogg_int64_t length=ov.end;
+ fprintf(stderr,"\rtesting raw seeking to random places in %ld bytes....\n",
+ (long)length);
+
+ for(i=0;i<1000;i++){
+ ogg_int64_t val=(double)rand()/RAND_MAX*length;
+ fprintf(stderr,"\r\t%d [raw position %ld]... ",i,(long)val);
+ ret=ov_raw_seek(&ov,val);
+ if(ret<0){
+ fprintf(stderr,"seek failed: %d\n",ret);
+ exit(1);
+ }
+
+ _verify(&ov,val,-1,-1.,pcmlength,bigassbuffer);
+
+ }
+ }
+
+ fprintf(stderr,"\r");
+ {
+ fprintf(stderr,"testing pcm page seeking to random places in %ld samples....\n",
+ (long)pcmlength);
+
+ for(i=0;i<1000;i++){
+ ogg_int64_t val= i==0?(ogg_int64_t)0:(double)rand()/RAND_MAX*pcmlength;
+ fprintf(stderr,"\r\t%d [pcm position %ld]... ",i,(long)val);
+ ret=ov_pcm_seek_page(&ov,val);
+ if(ret<0){
+ fprintf(stderr,"seek failed: %d\n",ret);
+ exit(1);
+ }
+
+ _verify(&ov,-1,val,-1.,pcmlength,bigassbuffer);
+
+ }
+ }
+
+ fprintf(stderr,"\r");
+ {
+ fprintf(stderr,"testing pcm exact seeking to random places in %f seconds....\n",
+ timelength);
+ for(i=0;i<1000;i++){
+ ogg_int64_t val= i==0?(ogg_int64_t)0:(double)rand()/RAND_MAX*pcmlength;
+ fprintf(stderr,"\r\t%d [pcm position %ld]... ",i,(long)val);
+ ret=ov_pcm_seek(&ov,val);
+ if(ret<0){
+ fprintf(stderr,"seek failed: %d\n",ret);
+ exit(1);
+ }
+ if(ov_pcm_tell(&ov)!=((val>>hs)<<hs)){
+ fprintf(stderr,"Declared position didn't perfectly match request: %ld != %ld\n",
+ (long)val,(long)ov_pcm_tell(&ov));
+ exit(1);
+ }
+
+ _verify(&ov,-1,val,-1.,pcmlength,bigassbuffer);
+
+ }
}
+
+ fprintf(stderr,"\r");
+ {
+ fprintf(stderr,"testing time page seeking to random places in %f seconds....\n",
+ timelength);
+
+ for(i=0;i<1000;i++){
+ double val=(double)rand()/RAND_MAX*timelength;
+ fprintf(stderr,"\r\t%d [time position %f]... ",i,val);
+ ret=ov_time_seek_page(&ov,val);
+ if(ret<0){
+ fprintf(stderr,"seek failed: %d\n",ret);
+ exit(1);
+ }
+
+ _verify(&ov,-1,-1,val,pcmlength,bigassbuffer);
+
+ }
+ }
+
+ fprintf(stderr,"\r");
+ {
+ fprintf(stderr,"testing time exact seeking to random places in %f seconds....\n",
+ timelength);
- printf("\r \nOK.\n\n");
+ for(i=0;i<1000;i++){
+ double val=(double)rand()/RAND_MAX*timelength;
+ fprintf(stderr,"\r\t%d [time position %f]... ",i,val);
+ ret=ov_time_seek(&ov,val);
+ if(ret<0){
+ fprintf(stderr,"seek failed: %d\n",ret);
+ exit(1);
+ }
+ if(ov_time_tell(&ov)<val-1 || ov_time_tell(&ov)>val+1){
+ fprintf(stderr,"Declared position didn't perfectly match request: %f != %f\n",
+ val,ov_time_tell(&ov));
+ exit(1);
+ }
+
+ _verify(&ov,-1,-1,val,pcmlength,bigassbuffer);
+
+ }
+ }
+
+ fprintf(stderr,"\r \nOK.\n\n");
+
+
}else{
- printf("Standard input was not seekable.\n");
+ fprintf(stderr,"Standard input was not seekable.\n");
}
ov_clear(&ov);
projects / platform / upstream / libvorbis.git / blobdiff