ref: 27afaa1f7b2eed61b42b2b3c7bf848c907fa4b28
dir: /frontend/main.c/
/*
* FAAC - Freeware Advanced Audio Coder
* Copyright (C) 2001 Menno Bakker
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: main.c,v 1.27 2002/08/19 16:33:54 knik Exp $
*/
#ifdef _WIN32
#include <windows.h>
#endif
#ifdef __unix__
#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <sndfile.h>
#include <getopt.h>
#include <faac.h>
#ifndef min
#define min(a,b) ( (a) < (b) ? (a) : (b) )
#endif
/* globals */
char* progName;
int StringCompI(char const *str1, char const *str2, unsigned long len)
{
signed int c1 = 0, c2 = 0;
while (len--) {
c1 = tolower(*str1++);
c2 = tolower(*str2++);
if (c1 == 0 || c1 != c2)
break;
}
return c1 - c2;
}
int main(int argc, char *argv[])
{
int frames, currentFrame;
faacEncHandle hEncoder;
SNDFILE *infile;
SF_INFO sfinfo;
unsigned int sr, chan;
unsigned long samplesInput, maxBytesOutput;
faacEncConfigurationPtr myFormat;
unsigned int mpegVersion = MPEG2;
unsigned int objectType = LOW;
unsigned int useMidSide = 1;
unsigned int useTns = 0;
unsigned int useAdts = 1;
int cutOff = -1;
unsigned long bitRate = 0;
int psymodelidx = -1;
char *audioFileName;
char *aacFileName;
short *pcmbuf;
unsigned char *bitbuf;
int bytesInput = 0;
FILE *outfile;
fprintf(stderr, "FAAC version " FAACENC_VERSION " (" __DATE__ ")\n");
/* begin process command line */
progName = argv[0];
while (1) {
int c = -1;
int option_index = 0;
static struct option long_options[] = {
{ "mpeg", 0, 0, 'm' },
{ "objecttype", 0, 0, 'o' },
{ "raw", 0, 0, 'r' },
{ "nomidside", 0, 0, 'n' },
{ "usetns", 0, 0, 't' },
{ "cutoff", 1, 0, 'c' },
{ "bitrate", 1, 0, 'b' }
};
c = getopt_long(argc, argv, "m:o:rntc:b:p:",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'm': {
unsigned int i;
if (optarg) {
if (sscanf(optarg, "%u", &i) < 1) {
mpegVersion = MPEG2;
} else {
if (i == 2)
mpegVersion = MPEG2;
else
mpegVersion = MPEG4;
}
} else {
mpegVersion = MPEG2;
}
break;
}
case 'o': {
unsigned char i[10];
if (optarg) {
if (sscanf(optarg, "%s", i) < 1) {
objectType = LOW;
} else {
if (StringCompI(i, "MAIN", 4) == 0)
objectType = MAIN;
else if (StringCompI(i, "LTP", 3) == 0)
objectType = LTP;
else
objectType = LOW;
}
} else {
objectType = LOW;
}
break;
}
case 'r': {
useAdts = 0;
break;
}
case 'n': {
useMidSide = 0;
break;
}
case 't': {
useTns = 1;
break;
}
case 'c': {
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0) {
cutOff = i;
}
break;
}
case 'b':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
if (i > 0 && i < 1000)
bitRate = i * 1000;
}
break;
}
case 'p':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
psymodelidx = i;
break;
}
case '?':
break;
default:
fprintf(stderr, "%s: unknown option specified, ignoring: %c\n",
progName, c);
}
}
/* check that we have at least two non-option arguments */
if ((argc - optind) < 2)
{
int i;
// get available psymodels
hEncoder = faacEncOpen(44100, 2, &samplesInput, &maxBytesOutput);
myFormat = faacEncGetCurrentConfiguration(hEncoder);
fprintf(stderr, "\nUsage: %s -options infile outfile\n", progName);
fprintf(stderr, "Options:\n");
fprintf(stderr, " -m X AAC MPEG version, X can be 2 or 4.\n");
fprintf(stderr, " -o X AAC object type, X can be LC, MAIN or LTP.\n");
for (i = 0; myFormat->psymodellist[i].ptr; i++)
{
fprintf(stderr, " -p %d Use %s.%s\n", i,
myFormat->psymodellist[i].name,
(i == myFormat->psymodelidx) ? " (default)" : "");
}
fprintf(stderr, " -n Don\'t use mid/side coding.\n");
fprintf(stderr, " -r RAW AAC output file.\n");
fprintf(stderr, " -t Use TNS coding.\n");
fprintf(stderr,
" -c X Set the bandwidth, X in Hz. (default=automatic)\n");
fprintf(stderr, " -b X Set the bitrate per channel, X in kbps."
" (default is auto)\n\n");
faacEncClose(hEncoder);
return 1;
}
/* point to the specified file names */
audioFileName = argv[optind++];
aacFileName = argv[optind++];
/* open the audio input file */
infile = sf_open_read(audioFileName, &sfinfo);
if (infile == NULL)
{
fprintf(stderr, "Couldn't open input file %s\n", audioFileName);
return 1;
}
/* open the aac output file */
outfile = fopen(aacFileName, "wb");
if (!outfile)
{
fprintf(stderr, "Couldn't create output file %s\n", aacFileName);
return 1;
}
/* determine input file parameters */
sr = sfinfo.samplerate;
chan = sfinfo.channels;
/* open the encoder library */
hEncoder = faacEncOpen(sr, chan, &samplesInput, &maxBytesOutput);
pcmbuf = (short*)malloc(samplesInput*sizeof(short));
bitbuf = (unsigned char*)malloc(maxBytesOutput*sizeof(unsigned char));
if (!bitRate)
{
bitRate = ((sr * 2) / 1000) * 1000;
if (bitRate > 64000)
bitRate = 64000;
}
if (cutOff <= 0)
{
if (cutOff < 0) // default
cutOff = bitRate / 4;
else // disabled
cutOff = sr / 2;
}
if (cutOff > (sr / 2))
cutOff = sr / 2;
fprintf(stderr, "Bit rate: %ld bps per channel\n", bitRate);
fprintf(stderr, "Cutoff frequency is ");
if (cutOff == sr / 2)
fprintf(stderr, "disabled\n");
else
fprintf(stderr, "%d Hz\n", cutOff);
/* put the options in the configuration struct */
myFormat = faacEncGetCurrentConfiguration(hEncoder);
myFormat->aacObjectType = objectType;
myFormat->mpegVersion = mpegVersion;
myFormat->useTns = useTns;
myFormat->allowMidside = useMidSide;
myFormat->bitRate = bitRate;
myFormat->bandWidth = cutOff;
myFormat->outputFormat = useAdts;
if (psymodelidx >= 0)
myFormat->psymodelidx = psymodelidx;
if (!faacEncSetConfiguration(hEncoder, myFormat)) {
fprintf(stderr, "Unsupported output format!\n");
return 1;
}
if (outfile)
{
int showcnt = 0;
#ifdef _WIN32
long begin = GetTickCount();
#endif
frames = (int)sfinfo.samples / 1024 + 2;
currentFrame = 0;
fprintf(stderr, "Encoding %s\n", audioFileName);
fprintf(stderr,
" frame | elapsed/estim | play/CPU | ETA\n");
/* encoding loop */
for ( ;; )
{
int bytesWritten;
bytesInput = sf_read_short(infile, pcmbuf, samplesInput) * sizeof(short);
/* call the actual encoding routine */
bytesWritten = faacEncEncode(hEncoder,
pcmbuf,
bytesInput/2,
bitbuf,
maxBytesOutput);
if (bytesWritten)
{
currentFrame++;
showcnt--;
}
if ((showcnt <= 0) || !bytesWritten)
{
double timeused;
#ifdef __unix__
struct rusage usage;
#endif
#ifdef _WIN32
char percent[50];
timeused = (GetTickCount() - begin) * 1e-3;
#else
#ifdef __unix__
if (getrusage(RUSAGE_SELF, &usage) == 0) {
timeused = (double)usage.ru_utime.tv_sec +
(double)usage.ru_utime.tv_usec * 1e-6;
}
else
timeused = 0;
#else
timeused = (double)clock() * (1.0 / CLOCKS_PER_SEC);
#endif
#endif
if (currentFrame && (timeused > 0.1))
{
showcnt += 50;
fprintf(stderr,
"\r%5d/%-5d (%3d%%)| %6.1f/%-6.1f | %8.3f | %.1f ",
currentFrame, frames, currentFrame*100/frames,
timeused,
timeused * frames / currentFrame,
(1024.0 * currentFrame / sr) / timeused,
timeused * (frames - currentFrame) / currentFrame);
fflush(stderr);
#ifdef _WIN32
sprintf(percent, "%.2f%% encoding %s",
100.0 * currentFrame / frames, audioFileName);
SetConsoleTitle(percent);
}
#endif
}
/* all done, bail out */
if (!bytesInput && !bytesWritten)
break ;
if (bytesWritten < 0)
{
fprintf(stderr, "faacEncEncode() failed\n");
break ;
}
/* write bitstream to aac file */
fwrite(bitbuf, 1, bytesWritten, outfile);
}
fprintf(stderr, "\n\n");
/* clean up */
fclose(outfile);
}
faacEncClose(hEncoder);
sf_close(infile);
if (pcmbuf) free(pcmbuf);
if (bitbuf) free(bitbuf);
return 0;
}
/*
$Log: main.c,v $
Revision 1.27 2002/08/19 16:33:54 knik
automatic bitrate setting
more advanced status line
*/