ref: f6388687de38bb4d9bc850deb13b38c6d261f7a2
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 1.37 2003/07/10 19:19:32 knik Exp $
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef WIN32
#include <windows.h>
#include <fcntl.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 <math.h>
#ifdef HAVE_GETOPT_H
# include <getopt.h>
#else
# include "getopt.h"
# include "getopt.c"
#endif
#include "input.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;
}
static int *mkChanMap(int channels, int center, int lf)
{
int *map;
int inpos;
int outpos;
if (!center && !lf)
return NULL;
if (channels < 3)
return NULL;
if (lf > 0)
lf--;
else
lf = channels - 1; // default AAC position
if (center > 0)
center--;
else
center = 0; // default AAC position
map = malloc(channels * sizeof(map[0]));
memset(map, 0, channels * sizeof(map[0]));
outpos = 0;
if ((center >= 0) && (center < channels))
map[outpos++] = center;
inpos = 0;
for (; outpos < (channels & 0xfe); inpos++)
{
if (inpos == center)
continue;
if (inpos == lf)
continue;
map[outpos++] = inpos;
}
if (outpos < channels)
{
if ((lf >= 0) && (lf < channels))
map[outpos] = lf;
else
map[outpos] = inpos;
}
return map;
}
int main(int argc, char *argv[])
{
int frames, currentFrame;
faacEncHandle hEncoder;
pcmfile_t *infile = NULL;
unsigned long samplesInput, maxBytesOutput;
faacEncConfigurationPtr myFormat;
unsigned int mpegVersion = MPEG2;
unsigned int objectType = LOW;
unsigned int useMidSide = 1;
static unsigned int useTns = 0;
unsigned int useAdts = 1;
int cutOff = -1;
int bitRate = 0;
unsigned long quantqual = 0;
int chanC = 3;
int chanLF = 4;
char *audioFileName;
char *aacFileName;
int32_t *pcmbuf;
int *chanmap = NULL;
unsigned char *bitbuf;
int samplesRead = 0;
int dieUsage = 0;
int rawChans = 0; // disabled by default
int rawBits = 16;
int rawRate = 44100;
FILE *outfile;
// get faac version
hEncoder = faacEncOpen(44100, 2, &samplesInput, &maxBytesOutput);
myFormat = faacEncGetCurrentConfiguration(hEncoder);
if (myFormat->version == FAAC_CFG_VERSION)
{
fprintf(stderr, "%s(see the faac.html file for more details)\n\n",
myFormat->copyright);
fprintf(stderr, "libfaac version %s\n", myFormat->name);
faacEncClose(hEncoder);
}
else
{
fprintf(stderr, __FILE__ "(%d): wrong libfaac version\n", __LINE__);
faacEncClose(hEncoder);
return 1;
}
/* begin process command line */
progName = argv[0];
while (1) {
static struct option long_options[] = {
{ "mpeg", 0, 0, 'm' },
{ "objecttype", 0, 0, 'o' },
{ "raw", 0, 0, 'r' },
{ "nomidside", 0, 0, 'n' },
{ "tns", 0, &useTns, 1 },
{ "notns", 0, &useTns, 0 },
{ "cutoff", 1, 0, 'c' },
{ "quality", 1, 0, 'q' },
{ "pcmraw", 0, 0, 'P'},
{ "pcmsamplerate", 1, 0, 'R'},
{ "pcmsamplebits", 1, 0, 'B'},
{ "pcmchannels", 1, 0, 'C'},
{ 0, 0, 0, 0}
};
int c = -1;
int option_index = 0;
c = getopt_long(argc, argv, "a:m:o:rnc:q:PR:B:C:I:",
long_options, &option_index);
if (c == -1)
break;
if (!c)
continue;
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 'c': {
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0) {
cutOff = i;
}
break;
}
case 'a': {
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
bitRate = 1000 * i;
}
break;
}
case 'q':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
if (i > 0 && i < 1000)
quantqual = i;
}
break;
}
case 'I':
{
int i;
char *s;
if (sscanf(optarg, "%d", &i) > 0)
chanC = i;
s = strchr(optarg, ',');
if (s && (sscanf(s + 1, "%d", &i) > 0))
chanLF = i;
break;
}
case 'P':
rawChans = 2; // enable raw input
break;
case 'R':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
rawRate = i;
rawChans = (rawChans > 0) ? rawChans : 2;
}
break;
}
case 'B':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
if (i > 32)
i = 32;
if (i < 8)
i = 8;
rawBits = i;
rawChans = (rawChans > 0) ? rawChans : 2;
}
break;
}
case 'C':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
rawChans = 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 || dieUsage == 1)
{
printf("\nUsage: %s -options infile outfile\n", progName);
printf("Options:\n");
printf(" -a <x>\tSet average bitrate to approximately x kbps/channel.\n");
printf(" -c <bandwidth>\tSet the bandwidth in Hz. (default=automatic)\n");
printf(" -q <quality>\tSet quantizer quality.\n");
printf(" --tns \tEnable TNS coding.\n");
printf(" --notns\tDisable TNS coding.\n");
printf(" -n Don\'t use mid/side coding.\n");
printf(" -m X AAC MPEG version, X can be 2 or 4.\n");
printf(" -o X AAC object type, X can be LC, MAIN or LTP.\n");
printf(" -r RAW AAC output file.\n");
printf(" -P Raw PCM input mode (default 44100Hz 16bit stereo).\n");
printf(" -R Raw PCM input rate.\n");
printf(" -B Raw PCM input sample size (16 default or 8bits).\n");
printf(" -C Raw PCM input channels.\n");
printf(" -I <C[,LF]> Input channel config, default is 3,4 (Center third, LF fourth)\n");
printf("More details on FAAC usage can be found in the faac.html file.\n");
return 1;
}
/* point to the specified file names */
audioFileName = argv[optind++];
aacFileName = argv[optind++];
/* open the audio input file */
if (rawChans > 0) // use raw input
{
infile = wav_open_read(audioFileName, 1);
if (infile)
{
infile->channels = rawChans;
infile->samplebytes = rawBits / 8;
infile->samplerate = rawRate;
}
}
else // header input
infile = wav_open_read(audioFileName, 0);
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;
}
/* open the encoder library */
hEncoder = faacEncOpen(infile->samplerate, infile->channels,
&samplesInput, &maxBytesOutput);
pcmbuf = (int32_t *)malloc(samplesInput*sizeof(int32_t));
bitbuf = (unsigned char*)malloc(maxBytesOutput*sizeof(unsigned char));
chanmap = mkChanMap(infile->channels, chanC, chanLF);
if (chanmap)
{
fprintf(stderr, "Remapping input channels: Center=%d, LFE=%d\n",
chanC, chanLF);
}
if (cutOff <= 0)
{
if (cutOff < 0) // default
cutOff = 0;
else // disabled
cutOff = infile->samplerate / 2;
}
if (cutOff > (infile->samplerate / 2))
cutOff = infile->samplerate / 2;
/* put the options in the configuration struct */
myFormat = faacEncGetCurrentConfiguration(hEncoder);
myFormat->aacObjectType = objectType;
myFormat->mpegVersion = mpegVersion;
myFormat->useTns = useTns;
myFormat->allowMidside = useMidSide;
if (bitRate)
myFormat->bitRate = bitRate;
myFormat->bandWidth = cutOff;
if (quantqual > 0)
myFormat->quantqual = quantqual;
myFormat->outputFormat = useAdts;
if (!faacEncSetConfiguration(hEncoder, myFormat)) {
fprintf(stderr, "Unsupported output format!\n");
return 1;
}
cutOff = myFormat->bandWidth;
quantqual = myFormat->quantqual;
bitRate = myFormat->bitRate;
if (bitRate)
fprintf(stderr, "Approximate ABR: %d kbps/channel\n", bitRate/1000);
fprintf(stderr, "Quantization quality: %ld\n", quantqual);
fprintf(stderr, "Bandwidth: %d Hz\n", cutOff);
if (myFormat->useTns | myFormat->allowMidside)
fprintf(stderr, "Using:%s%s\n",
myFormat->useTns ? " TNS" : "",
myFormat->allowMidside ? " M/S" : "");
if (outfile)
{
int showcnt = 0;
#ifdef _WIN32
long begin = GetTickCount();
#endif
if (infile->samples)
frames = (int)infile->samples / 1024 + 2;
else
frames = 0;
currentFrame = 0;
fprintf(stderr, "Encoding %s\n", audioFileName);
if (frames != 0)
fprintf(stderr,
" frame | elapsed/estim | play/CPU | ETA\n");
else
fprintf(stderr,
" frame | elapsed | play/CPU\n");
/* encoding loop */
for ( ;; )
{
int bytesWritten;
samplesRead = wav_read_int24(infile, pcmbuf, samplesInput, chanmap);
/* call the actual encoding routine */
bytesWritten = faacEncEncode(hEncoder,
pcmbuf,
samplesRead,
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;
if (frames != 0)
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 / infile->samplerate) / timeused,
timeused * (frames - currentFrame) / currentFrame);
else
fprintf(stderr,
"\r %5d | %6.1f | %8.3f ",
currentFrame,
timeused,
(1024.0 * currentFrame / infile->samplerate) / timeused);
fflush(stderr);
#ifdef _WIN32
if (frames != 0)
{
sprintf(percent, "%.2f%% encoding %s",
100.0 * currentFrame / frames, audioFileName);
SetConsoleTitle(percent);
}
#endif
}
}
/* all done, bail out */
if (!samplesRead && !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);
wav_close(infile);
if (pcmbuf) free(pcmbuf);
if (bitbuf) free(bitbuf);
return 0;
}
/*
$Log: main.c,v $
Revision 1.37 2003/07/10 19:19:32 knik
Input channel remapping and 24-bit support.
Revision 1.36 2003/06/26 19:40:53 knik
TNS disabled by default.
Copyright info moved to library.
Print help to standard output.
Revision 1.35 2003/06/21 08:59:31 knik
raw input support moved to input.c
Revision 1.34 2003/05/10 09:40:35 knik
added approximate ABR option
Revision 1.33 2003/04/13 08:39:28 knik
removed psymodel setting
Revision 1.32 2003/03/27 17:11:06 knik
updated library interface
-b bitrate option replaced with -q quality option
TNS enabled by default
Revision 1.31 2002/12/23 19:02:43 knik
added some headers
Revision 1.30 2002/12/15 15:16:55 menno
Some portability changes
Revision 1.29 2002/11/23 17:34:59 knik
replaced libsndfile with input.c
improved bandwidth/bitrate calculation formula
Revision 1.28 2002/08/30 16:20:45 knik
misplaced #endif
Revision 1.27 2002/08/19 16:33:54 knik
automatic bitrate setting
more advanced status line
*/