From 8e94244f86e657e4113e35438e59cf5771882b25 Mon Sep 17 00:00:00 2001 From: Aki Date: Sun, 3 Mar 2024 12:51:03 +0100 Subject: libogg and libvorbis are no longer part of this source tree --- contrib/vorbis/examples/seeking_example.c | 277 ------------------------------ 1 file changed, 277 deletions(-) delete mode 100644 contrib/vorbis/examples/seeking_example.c (limited to 'contrib/vorbis/examples/seeking_example.c') diff --git a/contrib/vorbis/examples/seeking_example.c b/contrib/vorbis/examples/seeking_example.c deleted file mode 100644 index d039b0d..0000000 --- a/contrib/vorbis/examples/seeking_example.c +++ /dev/null @@ -1,277 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * 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 1994-2007 * - * by the Xiph.Org Foundation http://www.xiph.org/ * - * * - ******************************************************************** - - function: illustrate seeking, and test it too - - ********************************************************************/ - -#include -#include -#include "vorbis/codec.h" -#include "vorbis/vorbisfile.h" - -#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ -# include -# include -#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)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>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>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,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_callbacks(stdin,&ov,NULL,-1,OV_CALLBACKS_NOCLOSE)<0){ - fprintf(stderr,"Could not open input as an OggVorbis file.\n\n"); - exit(1); - } - -#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)){ - - /* 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;ichannels!=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)*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)<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{ - fprintf(stderr,"Standard input was not seekable.\n"); - } - - ov_clear(&ov); - return 0; -} - - - - - - - - - - - - - -- cgit v1.1