ref: d41c028d696821b54bf8e8e994bf34be1c25e2c7
dir: /src/opus_enc.c/
/* 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 FOUNDATION 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 <stdio.h> #include <stdlib.h> #include <math.h> #include <string.h> #include "opus.h" #define MAX_PACKET 1024 int main(int argc, char *argv[]) { int err; char *inFile, *outFile; FILE *fin, *fout; OpusEncoder *enc; int len; int frame_size, channels; int bytes_per_packet; unsigned char data[MAX_PACKET]; int rate; int count = 0; int stop=0; int vbr=0; int tot_read=0, tot_written=0; short *in, *out; int mode=MODE_HYBRID; double bits=0; if (argc != 9 && argc != 8 && argc != 7) { fprintf (stderr, "Usage: test_opus <rate (kHz)> <channels> <frame size> " " <bytes per packet> [<VBR rate (kb/s)>] [<packet loss rate>] " "<input> <output>\n"); return 1; } rate = atoi(argv[1]); channels = atoi(argv[2]); frame_size = atoi(argv[3]); bytes_per_packet = atoi(argv[4]); if (argc >= 8) vbr = atoi(argv[5]); 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]); return 1; } enc = opus_encoder_create(rate, channels); mode = MODE_HYBRID; opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(BANDWIDTH_FULLBAND)); opus_encoder_ctl(enc, OPUS_SET_MODE(mode)); in = (short*)malloc(frame_size*channels*sizeof(short)); while (!stop) { int write_samples; err = fread(in, sizeof(short), frame_size*channels, fin); tot_read += err; if (err < frame_size*channels) { int i; for (i=err;i<frame_size*channels;i++) in[i] = 0; stop = 1; } len = opus_encode(enc, in, frame_size, data, bytes_per_packet); if (len <= 0) { fprintf (stderr, "opus_encode() returned %d\n", len); return 1; } bits += len*8; count++; fputc((len>>8)&0xFF, fout); fputc((len)&0xFF, fout); fwrite(data, 1, len, fout); } fprintf (stderr, "average bit-rate: %f kb/s\n", bits*rate/(frame_size*(double)count)); opus_encoder_destroy(enc); fclose(fin); fclose(fout); free(in); free(out); return 0; }