From d9a291f6411f2e571c181da0ac89f550ba73f681 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= Date: Wed, 12 Oct 2016 20:37:38 +0200 Subject: ogg/vorbis/opus: Make them modules and unbundle thirdparty libs Took the opportunity to undo the Godot changed made to the opus source. The opus module should eventually be built in its own environment to avoid polluting others with too many include dirs and defines. TODO: Fix the platform/ stuff for opus. --- thirdparty/opus/opus_compare.c | 379 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 379 insertions(+) create mode 100644 thirdparty/opus/opus_compare.c (limited to 'thirdparty/opus/opus_compare.c') diff --git a/thirdparty/opus/opus_compare.c b/thirdparty/opus/opus_compare.c new file mode 100644 index 0000000000..06c67d752f --- /dev/null +++ b/thirdparty/opus/opus_compare.c @@ -0,0 +1,379 @@ +/* Copyright (c) 2011-2012 Xiph.Org Foundation, Mozilla Corporation + Written by Jean-Marc Valin and Timothy B. Terriberry */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include +#include +#include + +#define OPUS_PI (3.14159265F) + +#define OPUS_COSF(_x) ((float)cos(_x)) +#define OPUS_SINF(_x) ((float)sin(_x)) + +static void *check_alloc(void *_ptr){ + if(_ptr==NULL){ + fprintf(stderr,"Out of memory.\n"); + exit(EXIT_FAILURE); + } + return _ptr; +} + +static void *opus_malloc(size_t _size){ + return check_alloc(malloc(_size)); +} + +static void *opus_realloc(void *_ptr,size_t _size){ + return check_alloc(realloc(_ptr,_size)); +} + +static size_t read_pcm16(float **_samples,FILE *_fin,int _nchannels){ + unsigned char buf[1024]; + float *samples; + size_t nsamples; + size_t csamples; + size_t xi; + size_t nread; + samples=NULL; + nsamples=csamples=0; + for(;;){ + nread=fread(buf,2*_nchannels,1024/(2*_nchannels),_fin); + if(nread<=0)break; + if(nsamples+nread>csamples){ + do csamples=csamples<<1|1; + while(nsamples+nread>csamples); + samples=(float *)opus_realloc(samples, + _nchannels*csamples*sizeof(*samples)); + } + for(xi=0;xi=_window_sz)ti-=_window_sz; + } + re*=_downsample; + im*=_downsample; + _ps[(xi*ps_sz+xj)*_nchannels+ci]=re*re+im*im+100000; + p[ci]+=_ps[(xi*ps_sz+xj)*_nchannels+ci]; + } + } + if(_out){ + _out[(xi*_nbands+bi)*_nchannels]=p[0]/(_bands[bi+1]-_bands[bi]); + if(_nchannels==2){ + _out[(xi*_nbands+bi)*_nchannels+1]=p[1]/(_bands[bi+1]-_bands[bi]); + } + } + } + } + free(window); +} + +#define NBANDS (21) +#define NFREQS (240) + +/*Bands on which we compute the pseudo-NMR (Bark-derived + CELT bands).*/ +static const int BANDS[NBANDS+1]={ + 0,2,4,6,8,10,12,14,16,20,24,28,32,40,48,56,68,80,96,120,156,200 +}; + +#define TEST_WIN_SIZE (480) +#define TEST_WIN_STEP (120) + +int main(int _argc,const char **_argv){ + FILE *fin1; + FILE *fin2; + float *x; + float *y; + float *xb; + float *X; + float *Y; + double err; + float Q; + size_t xlength; + size_t ylength; + size_t nframes; + size_t xi; + int ci; + int xj; + int bi; + int nchannels; + unsigned rate; + int downsample; + int ybands; + int yfreqs; + int max_compare; + if(_argc<3||_argc>6){ + fprintf(stderr,"Usage: %s [-s] [-r rate2] \n", + _argv[0]); + return EXIT_FAILURE; + } + nchannels=1; + if(strcmp(_argv[1],"-s")==0){ + nchannels=2; + _argv++; + } + rate=48000; + ybands=NBANDS; + yfreqs=NFREQS; + downsample=1; + if(strcmp(_argv[1],"-r")==0){ + rate=atoi(_argv[2]); + if(rate!=8000&&rate!=12000&&rate!=16000&&rate!=24000&&rate!=48000){ + fprintf(stderr, + "Sampling rate must be 8000, 12000, 16000, 24000, or 48000\n"); + return EXIT_FAILURE; + } + downsample=48000/rate; + switch(rate){ + case 8000:ybands=13;break; + case 12000:ybands=15;break; + case 16000:ybands=17;break; + case 24000:ybands=19;break; + } + yfreqs=NFREQS/downsample; + _argv+=2; + } + fin1=fopen(_argv[1],"rb"); + if(fin1==NULL){ + fprintf(stderr,"Error opening '%s'.\n",_argv[1]); + return EXIT_FAILURE; + } + fin2=fopen(_argv[2],"rb"); + if(fin2==NULL){ + fprintf(stderr,"Error opening '%s'.\n",_argv[2]); + fclose(fin1); + return EXIT_FAILURE; + } + /*Read in the data and allocate scratch space.*/ + xlength=read_pcm16(&x,fin1,2); + if(nchannels==1){ + for(xi=0;xi0;){ + for(ci=0;ci0){ + /*Temporal masking: -3 dB/2.5ms slope.*/ + for(bi=0;bi=79&&xj<=81)im*=0.1F; + if(xj==80)im*=0.1F; + Eb+=im; + } + } + Eb /= (BANDS[bi+1]-BANDS[bi])*nchannels; + Ef += Eb*Eb; + } + /*Using a fixed normalization value means we're willing to accept slightly + lower quality for lower sampling rates.*/ + Ef/=NBANDS; + Ef*=Ef; + err+=Ef*Ef; + } + err=pow(err/nframes,1.0/16); + Q=100*(1-0.5*log(1+err)/log(1.13)); + if(Q<0){ + fprintf(stderr,"Test vector FAILS\n"); + fprintf(stderr,"Internal weighted error is %f\n",err); + return EXIT_FAILURE; + } + else{ + fprintf(stderr,"Test vector PASSES\n"); + fprintf(stderr, + "Opus quality metric: %.1f %% (internal weighted error is %f)\n",Q,err); + return EXIT_SUCCESS; + } +} -- cgit v1.2.3