Add copy of opus library in deps/third_party.

opus/src/repacketizer_demo.c

+/* Copyright (c) 2011 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.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_PACKETOUT 32000
+
+void usage(char *argv0)
+{
+   fprintf(stderr, "usage: %s [options] input_file output_file\n", argv0);
+}
+
+static void int_to_char(opus_uint32 i, unsigned char ch[4])
+{
+    ch[0] = i>>24;
+    ch[1] = (i>>16)&0xFF;
+    ch[2] = (i>>8)&0xFF;
+    ch[3] = i&0xFF;
+}
+
+static opus_uint32 char_to_int(unsigned char ch[4])
+{
+    return ((opus_uint32)ch[0]<<24) | ((opus_uint32)ch[1]<<16)
+         | ((opus_uint32)ch[2]<< 8) |  (opus_uint32)ch[3];
+}
+
+int main(int argc, char *argv[])
+{
+   int i, eof=0;
+   FILE *fin, *fout;
+   unsigned char packets[48][1500];
+   int len[48];
+   int rng[48];
+   OpusRepacketizer *rp;
+   unsigned char output_packet[MAX_PACKETOUT];
+   int merge = 1, split=0;
+
+   if (argc < 3)
+   {
+      usage(argv[0]);
+      return EXIT_FAILURE;
+   }
+   for (i=1;i<argc-2;i++)
+   {
+      if (strcmp(argv[i], "-merge")==0)
+      {
+         merge = atoi(argv[i+1]);
+         if(merge<1)
+         {
+            fprintf(stderr, "-merge parameter must be at least 1.\n");
+            return EXIT_FAILURE;
+         }
+         i++;
+      } else if (strcmp(argv[i], "-split")==0)
+         split = 1;
+      else
+      {
+         fprintf(stderr, "Unknown option: %s\n", argv[i]);
+         usage(argv[0]);
+         return EXIT_FAILURE;
+      }
+   }
+   fin = fopen(argv[argc-2], "r");
+   if(fin==NULL)
+   {
+     fprintf(stderr, "Error opening input file: %s\n", argv[argc-2]);
+     return EXIT_FAILURE;
+   }
+   fout = fopen(argv[argc-1], "w");
+   if(fout==NULL)
+   {
+     fprintf(stderr, "Error opening output file: %s\n", argv[argc-1]);
+     fclose(fin);
+     return EXIT_FAILURE;
+   }
+
+   rp = opus_repacketizer_create();
+   while (!eof)
+   {
+      int err;
+      int nb_packets=merge;
+      opus_repacketizer_init(rp);
+      for (i=0;i<nb_packets;i++)
+      {
+         unsigned char ch[4];
+         err = fread(ch, 1, 4, fin);
+         len[i] = char_to_int(ch);
+         /*fprintf(stderr, "in len = %d\n", len[i]);*/
+         if (len[i]>1500 || len[i]<0)
+         {
+             if (feof(fin))
+             {
+                eof = 1;
+             } else {
+                fprintf(stderr, "Invalid payload length\n");
+                fclose(fin);
+                fclose(fout);
+                return EXIT_FAILURE;
+             }
+             break;
+         }
+         err = fread(ch, 1, 4, fin);
+         rng[i] = char_to_int(ch);
+         err = fread(packets[i], 1, len[i], fin);
+         if (feof(fin))
+         {
+            eof = 1;
+            break;
+         }
+         err = opus_repacketizer_cat(rp, packets[i], len[i]);
+         if (err!=OPUS_OK)
+         {
+            fprintf(stderr, "opus_repacketizer_cat() failed: %s\n", opus_strerror(err));
+            break;
+         }
+      }
+      nb_packets = i;
+
+      if (eof)
+         break;
+
+      if (!split)
+      {
+         err = opus_repacketizer_out(rp, output_packet, MAX_PACKETOUT);
+         if (err>0) {
+            unsigned char int_field[4];
+            int_to_char(err, int_field);
+            if(fwrite(int_field, 1, 4, fout)!=4){
+               fprintf(stderr, "Error writing.\n");
+               return EXIT_FAILURE;
+            }
+            int_to_char(rng[nb_packets-1], int_field);
+            if (fwrite(int_field, 1, 4, fout)!=4) {
+               fprintf(stderr, "Error writing.\n");
+               return EXIT_FAILURE;
+            }
+            if (fwrite(output_packet, 1, err, fout)!=(unsigned)err) {
+               fprintf(stderr, "Error writing.\n");
+               return EXIT_FAILURE;
+            }
+            /*fprintf(stderr, "out len = %d\n", err);*/
+         } else {
+            fprintf(stderr, "opus_repacketizer_out() failed: %s\n", opus_strerror(err));
+         }
+      } else {
+         int nb_frames = opus_repacketizer_get_nb_frames(rp);
+         for (i=0;i<nb_frames;i++)
+         {
+            err = opus_repacketizer_out_range(rp, i, i+1, output_packet, MAX_PACKETOUT);
+            if (err>0) {
+               unsigned char int_field[4];
+               int_to_char(err, int_field);
+               if (fwrite(int_field, 1, 4, fout)!=4) {
+                  fprintf(stderr, "Error writing.\n");
+                  return EXIT_FAILURE;
+               }
+               if (i==nb_frames-1)
+                  int_to_char(rng[nb_packets-1], int_field);
+               else
+                  int_to_char(0, int_field);
+               if (fwrite(int_field, 1, 4, fout)!=4) {
+                  fprintf(stderr, "Error writing.\n");
+                  return EXIT_FAILURE;
+               }
+               if (fwrite(output_packet, 1, err, fout)!=(unsigned)err) {
+                  fprintf(stderr, "Error writing.\n");
+                  return EXIT_FAILURE;
+               }
+               /*fprintf(stderr, "out len = %d\n", err);*/
+            } else {
+               fprintf(stderr, "opus_repacketizer_out() failed: %s\n", opus_strerror(err));
+            }
+
+         }
+      }
+   }
+
+   fclose(fin);
+   fclose(fout);
+   return EXIT_SUCCESS;
+}