diff src/opus-1.3/celt/opus_custom_demo.c @ 154:4664ac0c1032

Add Opus sources and macOS builds

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/opus-1.3/celt/opus_custom_demo.c	Wed Jan 23 13:48:08 2019 +0000
@@ -0,0 +1,210 @@
+/* Copyright (c) 2007-2008 CSIRO
+   Copyright (c) 2007-2009 Xiph.Org Foundation
+   Written by Jean-Marc Valin */
+/*
+   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.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "opus_custom.h"
+#include "arch.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <string.h>
+
+#define MAX_PACKET 1275
+
+int main(int argc, char *argv[])
+{
+   int err;
+   char *inFile, *outFile;
+   FILE *fin, *fout;
+   OpusCustomMode *mode=NULL;
+   OpusCustomEncoder *enc;
+   OpusCustomDecoder *dec;
+   int len;
+   opus_int32 frame_size, channels, rate;
+   int bytes_per_packet;
+   unsigned char data[MAX_PACKET];
+   int complexity;
+#if !(defined (FIXED_POINT) && !defined(CUSTOM_MODES)) && defined(RESYNTH)
+   int i;
+   double rmsd = 0;
+#endif
+   int count = 0;
+   opus_int32 skip;
+   opus_int16 *in, *out;
+   if (argc != 9 && argc != 8 && argc != 7)
+   {
+      fprintf (stderr, "Usage: test_opus_custom <rate> <channels> <frame size> "
+               " <bytes per packet> [<complexity> [packet loss rate]] "
+               "<input> <output>\n");
+      return 1;
+   }
+
+   rate = (opus_int32)atol(argv[1]);
+   channels = atoi(argv[2]);
+   frame_size = atoi(argv[3]);
+   mode = opus_custom_mode_create(rate, frame_size, NULL);
+   if (mode == NULL)
+   {
+      fprintf(stderr, "failed to create a mode\n");
+      return 1;
+   }
+
+   bytes_per_packet = atoi(argv[4]);
+   if (bytes_per_packet < 0 || bytes_per_packet > MAX_PACKET)
+   {
+      fprintf (stderr, "bytes per packet must be between 0 and %d\n",
+                        MAX_PACKET);
+      return 1;
+   }
+
+   inFile = argv[argc-2];
+   fin = fopen(inFile, "rb");
+   if (!fin)
+   {
+      fprintf (stderr, "Could not open input file %s\n", argv[argc-2]);
+      return 1;
+   }
+   outFile = argv[argc-1];
+   fout = fopen(outFile, "wb+");
+   if (!fout)
+   {
+      fprintf (stderr, "Could not open output file %s\n", argv[argc-1]);
+      fclose(fin);
+      return 1;
+   }
+
+   enc = opus_custom_encoder_create(mode, channels, &err);
+   if (err != 0)
+   {
+      fprintf(stderr, "Failed to create the encoder: %s\n", opus_strerror(err));
+      fclose(fin);
+      fclose(fout);
+      return 1;
+   }
+   dec = opus_custom_decoder_create(mode, channels, &err);
+   if (err != 0)
+   {
+      fprintf(stderr, "Failed to create the decoder: %s\n", opus_strerror(err));
+      fclose(fin);
+      fclose(fout);
+      return 1;
+   }
+   opus_custom_decoder_ctl(dec, OPUS_GET_LOOKAHEAD(&skip));
+
+   if (argc>7)
+   {
+      complexity=atoi(argv[5]);
+      opus_custom_encoder_ctl(enc,OPUS_SET_COMPLEXITY(complexity));
+   }
+
+   in = (opus_int16*)malloc(frame_size*channels*sizeof(opus_int16));
+   out = (opus_int16*)malloc(frame_size*channels*sizeof(opus_int16));
+
+   while (!feof(fin))
+   {
+      int ret;
+      err = fread(in, sizeof(short), frame_size*channels, fin);
+      if (feof(fin))
+         break;
+      len = opus_custom_encode(enc, in, frame_size, data, bytes_per_packet);
+      if (len <= 0)
+         fprintf (stderr, "opus_custom_encode() failed: %s\n", opus_strerror(len));
+
+      /* This is for simulating bit errors */
+#if 0
+      int errors = 0;
+      int eid = 0;
+      /* This simulates random bit error */
+      for (i=0;i<len*8;i++)
+      {
+         if (rand()%atoi(argv[8])==0)
+         {
+            if (i<64)
+            {
+               errors++;
+               eid = i;
+            }
+            data[i/8] ^= 1<<(7-(i%8));
+         }
+      }
+      if (errors == 1)
+         data[eid/8] ^= 1<<(7-(eid%8));
+      else if (errors%2 == 1)
+         data[rand()%8] ^= 1<<rand()%8;
+#endif
+
+#if 1 /* Set to zero to use the encoder's output instead */
+      /* This is to simulate packet loss */
+      if (argc==9 && rand()%1000<atoi(argv[argc-3]))
+      /*if (errors && (errors%2==0))*/
+         ret = opus_custom_decode(dec, NULL, len, out, frame_size);
+      else
+         ret = opus_custom_decode(dec, data, len, out, frame_size);
+      if (ret < 0)
+         fprintf(stderr, "opus_custom_decode() failed: %s\n", opus_strerror(ret));
+#else
+      for (i=0;i<ret*channels;i++)
+         out[i] = in[i];
+#endif
+#if !(defined (FIXED_POINT) && !defined(CUSTOM_MODES)) && defined(RESYNTH)
+      for (i=0;i<ret*channels;i++)
+      {
+         rmsd += (in[i]-out[i])*1.0*(in[i]-out[i]);
+         /*out[i] -= in[i];*/
+      }
+#endif
+      count++;
+      fwrite(out+skip*channels, sizeof(short), (ret-skip)*channels, fout);
+      skip = 0;
+   }
+   PRINT_MIPS(stderr);
+
+   opus_custom_encoder_destroy(enc);
+   opus_custom_decoder_destroy(dec);
+   fclose(fin);
+   fclose(fout);
+   opus_custom_mode_destroy(mode);
+   free(in);
+   free(out);
+#if !(defined (FIXED_POINT) && !defined(CUSTOM_MODES)) && defined(RESYNTH)
+   if (rmsd > 0)
+   {
+      rmsd = sqrt(rmsd/(1.0*frame_size*channels*count));
+      fprintf (stderr, "Error: encoder doesn't match decoder\n");
+      fprintf (stderr, "RMS mismatch is %f\n", rmsd);
+      return 1;
+   } else {
+      fprintf (stderr, "Encoder matches decoder!!\n");
+   }
+#endif
+   return 0;
+}
+