+++ /dev/null
-/*
- * Command line frontend program
- *
- * Copyright (c) 1999 Mark Taylor
- * 2000 Takehiro TOMINAGA
- * 2010-2011 Robert Hegemann
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library 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: lame_main.c,v 1.9.2.1 2011/11/18 08:38:04 robert Exp $ */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <assert.h>
-#include <stdio.h>
-
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <string.h>
-#else
-# ifndef HAVE_STRCHR
-# define strchr index
-# define strrchr rindex
-# endif
-char *strchr(), *strrchr();
-# ifndef HAVE_MEMCPY
-# define memcpy(d, s, n) bcopy ((s), (d), (n))
-# define memmove(d, s, n) bcopy ((s), (d), (n))
-# endif
-#endif
-
-#ifdef HAVE_FCNTL_H
-# include <fcntl.h>
-#endif
-
-#ifdef __sun__
-/* woraround for SunOS 4.x, it has SEEK_* defined here */
-#include <unistd.h>
-#endif
-
-#if defined(_WIN32)
-# include <windows.h>
-#endif
-
-
-/*
- main.c is example code for how to use libmp3lame.a. To use this library,
- you only need the library and lame.h. All other .h files are private
- to the library.
-*/
-#include "lame.h"
-
-#include "console.h"
-#include "parse.h"
-#include "main.h"
-#include "get_audio.h"
-#include "timestatus.h"
-
-/* PLL 14/04/2000 */
-#if macintosh
-#include <console.h>
-#endif
-
-#ifdef WITH_DMALLOC
-#include <dmalloc.h>
-#endif
-
-
-
-
-/************************************************************************
-*
-* main
-*
-* PURPOSE: MPEG-1,2 Layer III encoder with GPSYCHO
-* psychoacoustic model.
-*
-************************************************************************/
-
-
-static int
-parse_args_from_string(lame_global_flags * const gfp, const char *p, char *inPath, char *outPath)
-{ /* Quick & very Dirty */
- char *q;
- char *f;
- char *r[128];
- int c = 0;
- int ret;
-
- if (p == NULL || *p == '\0')
- return 0;
-
- f = q = malloc(strlen(p) + 1);
- strcpy(q, p);
-
- r[c++] = "lhama";
- for (;;) {
- r[c++] = q;
- while (*q != ' ' && *q != '\0')
- q++;
- if (*q == '\0')
- break;
- *q++ = '\0';
- }
- r[c] = NULL;
-
- ret = parse_args(gfp, c, r, inPath, outPath, NULL, NULL);
- free(f);
- return ret;
-}
-
-
-
-
-
-static FILE *
-init_files(lame_global_flags * gf, char const *inPath, char const *outPath)
-{
- FILE *outf;
- /* Mostly it is not useful to use the same input and output name.
- This test is very easy and buggy and don't recognize different names
- assigning the same file
- */
- if (0 != strcmp("-", outPath) && 0 == strcmp(inPath, outPath)) {
- error_printf("Input file and Output file are the same. Abort.\n");
- return NULL;
- }
-
- /* open the wav/aiff/raw pcm or mp3 input file. This call will
- * open the file, try to parse the headers and
- * set gf.samplerate, gf.num_channels, gf.num_samples.
- * if you want to do your own file input, skip this call and set
- * samplerate, num_channels and num_samples yourself.
- */
- if (init_infile(gf, inPath) < 0) {
- error_printf("Can't init infile '%s'\n", inPath);
- return NULL;
- }
- if ((outf = init_outfile(outPath, lame_get_decode_only(gf))) == NULL) {
- error_printf("Can't init outfile '%s'\n", outPath);
- return NULL;
- }
-
- return outf;
-}
-
-
-static void
-printInputFormat(lame_t gfp)
-{
- int const v_main = 2 - lame_get_version(gfp);
- char const *v_ex = lame_get_out_samplerate(gfp) < 16000 ? ".5" : "";
- switch (global_reader.input_format) {
- case sf_mp123: /* FIXME: !!! */
- break;
- case sf_mp3:
- console_printf("MPEG-%u%s Layer %s", v_main, v_ex, "III");
- break;
- case sf_mp2:
- console_printf("MPEG-%u%s Layer %s", v_main, v_ex, "II");
- break;
- case sf_mp1:
- console_printf("MPEG-%u%s Layer %s", v_main, v_ex, "I");
- break;
- case sf_raw:
- console_printf("raw PCM data");
- break;
- case sf_wave:
- console_printf("Microsoft WAVE");
- break;
- case sf_aiff:
- console_printf("SGI/Apple AIFF");
- break;
- default:
- console_printf("unknown");
- break;
- }
-}
-
-/* the simple lame decoder */
-/* After calling lame_init(), lame_init_params() and
- * init_infile(), call this routine to read the input MP3 file
- * and output .wav data to the specified file pointer*/
-/* lame_decoder will ignore the first 528 samples, since these samples
- * represent the mpglib delay (and are all 0). skip = number of additional
- * samples to skip, to (for example) compensate for the encoder delay */
-
-static int
-lame_decoder(lame_t gfp, FILE * outf, char *inPath, char *outPath)
-{
- short int Buffer[2][1152];
- int i, iread;
- double wavsize;
- int tmp_num_channels = lame_get_num_channels(gfp);
- int skip_start = samples_to_skip_at_start();
- int skip_end = samples_to_skip_at_end();
- DecoderProgress dp = 0;
-
- if (!(tmp_num_channels >= 1 && tmp_num_channels <= 2)) {
- error_printf("Internal error. Aborting.");
- exit(-1);
- }
-
- if (global_ui_config.silent < 9) {
- console_printf("\rinput: %s%s(%g kHz, %i channel%s, ",
- strcmp(inPath, "-") ? inPath : "<stdin>",
- strlen(inPath) > 26 ? "\n\t" : " ",
- lame_get_in_samplerate(gfp) / 1.e3,
- tmp_num_channels, tmp_num_channels != 1 ? "s" : "");
-
- printInputFormat(gfp);
-
- console_printf(")\noutput: %s%s(16 bit, Microsoft WAVE)\n",
- strcmp(outPath, "-") ? outPath : "<stdout>",
- strlen(outPath) > 45 ? "\n\t" : " ");
-
- if (skip_start > 0)
- console_printf("skipping initial %i samples (encoder+decoder delay)\n", skip_start);
- if (skip_end > 0)
- console_printf("skipping final %i samples (encoder padding-decoder delay)\n", skip_end);
-
- switch (global_reader.input_format) {
- case sf_mp3:
- case sf_mp2:
- case sf_mp1:
- dp = decoder_progress_init(lame_get_num_samples(gfp),
- global_decoder.mp3input_data.framesize);
- break;
- case sf_raw:
- case sf_wave:
- case sf_aiff:
- default:
- dp = decoder_progress_init(lame_get_num_samples(gfp),
- lame_get_in_samplerate(gfp) < 32000 ? 576 : 1152);
- break;
- }
- }
-
- if (0 == global_decoder.disable_wav_header)
- WriteWaveHeader(outf, 0x7FFFFFFF, lame_get_in_samplerate(gfp), tmp_num_channels, 16);
- /* unknown size, so write maximum 32 bit signed value */
-
- wavsize = 0;
- do {
- iread = get_audio16(gfp, Buffer); /* read in 'iread' samples */
- if (iread >= 0) {
- wavsize += iread;
- if (dp != 0) {
- decoder_progress(dp, &global_decoder.mp3input_data, iread);
- }
- put_audio16(outf, Buffer, iread, tmp_num_channels);
- }
- } while (iread > 0);
-
- i = (16 / 8) * tmp_num_channels;
- assert(i > 0);
- if (wavsize <= 0) {
- if (global_ui_config.silent < 10)
- error_printf("WAVE file contains 0 PCM samples\n");
- wavsize = 0;
- }
- else if (wavsize > 0xFFFFFFD0 / i) {
- if (global_ui_config.silent < 10)
- error_printf("Very huge WAVE file, can't set filesize accordingly\n");
- wavsize = 0xFFFFFFD0;
- }
- else {
- wavsize *= i;
- }
- /* if outf is seekable, rewind and adjust length */
- if (!global_decoder.disable_wav_header && strcmp("-", outPath)
- && !fseek(outf, 0l, SEEK_SET))
- WriteWaveHeader(outf, (int) wavsize, lame_get_in_samplerate(gfp), tmp_num_channels, 16);
- fclose(outf);
- close_infile();
-
- if (dp != 0)
- decoder_progress_finish(dp);
- return 0;
-}
-
-
-
-static void
-print_trailing_info(lame_global_flags * gf)
-{
- if (lame_get_findReplayGain(gf)) {
- int RadioGain = lame_get_RadioGain(gf);
- console_printf("ReplayGain: %s%.1fdB\n", RadioGain > 0 ? "+" : "",
- ((float) RadioGain) / 10.0);
- if (RadioGain > 0x1FE || RadioGain < -0x1FE)
- error_printf
- ("WARNING: ReplayGain exceeds the -51dB to +51dB range. Such a result is too\n"
- " high to be stored in the header.\n");
- }
-
- /* if (the user requested printing info about clipping) and (decoding
- on the fly has actually been performed) */
- if (global_ui_config.print_clipping_info && lame_get_decode_on_the_fly(gf)) {
- float noclipGainChange = (float) lame_get_noclipGainChange(gf) / 10.0f;
- float noclipScale = lame_get_noclipScale(gf);
-
- if (noclipGainChange > 0.0) { /* clipping occurs */
- console_printf
- ("WARNING: clipping occurs at the current gain. Set your decoder to decrease\n"
- " the gain by at least %.1fdB or encode again ", noclipGainChange);
-
- /* advice the user on the scale factor */
- if (noclipScale > 0) {
- console_printf("using --scale %.2f\n", noclipScale);
- console_printf(" or less (the value under --scale is approximate).\n");
- }
- else {
- /* the user specified his own scale factor. We could suggest
- * the scale factor of (32767.0/gfp->PeakSample)*(gfp->scale)
- * but it's usually very inaccurate. So we'd rather advice him to
- * disable scaling first and see our suggestion on the scale factor then. */
- console_printf("using --scale <arg>\n"
- " (For a suggestion on the optimal value of <arg> encode\n"
- " with --scale 1 first)\n");
- }
-
- }
- else { /* no clipping */
- if (noclipGainChange > -0.1)
- console_printf
- ("\nThe waveform does not clip and is less than 0.1dB away from full scale.\n");
- else
- console_printf
- ("\nThe waveform does not clip and is at least %.1fdB away from full scale.\n",
- -noclipGainChange);
- }
- }
-
-}
-
-
-static int
-write_xing_frame(lame_global_flags * gf, FILE * outf, size_t offset)
-{
- unsigned char mp3buffer[LAME_MAXMP3BUFFER];
- size_t imp3, owrite;
-
- imp3 = lame_get_lametag_frame(gf, mp3buffer, sizeof(mp3buffer));
- if (imp3 == 0) {
- return 0; /* nothing to do */
- }
- if (global_ui_config.silent <= 0) {
- console_printf("Writing LAME Tag...");
- }
- if (imp3 > sizeof(mp3buffer)) {
- error_printf
- ("Error writing LAME-tag frame: buffer too small: buffer size=%d frame size=%d\n",
- sizeof(mp3buffer), imp3);
- return -1;
- }
- if (fseek(outf, offset, SEEK_SET) != 0) {
- error_printf("fatal error: can't update LAME-tag frame!\n");
- return -1;
- }
- owrite = (int) fwrite(mp3buffer, 1, imp3, outf);
- if (owrite != imp3) {
- error_printf("Error writing LAME-tag \n");
- return -1;
- }
- if (global_ui_config.silent <= 0) {
- console_printf("done\n");
- }
- return imp3;
-}
-
-
-static int
-write_id3v1_tag(lame_t gf, FILE * outf)
-{
- unsigned char mp3buffer[128];
- int imp3, owrite;
-
- imp3 = lame_get_id3v1_tag(gf, mp3buffer, sizeof(mp3buffer));
- if (imp3 <= 0) {
- return 0;
- }
- if ((size_t) imp3 > sizeof(mp3buffer)) {
- error_printf("Error writing ID3v1 tag: buffer too small: buffer size=%d ID3v1 size=%d\n",
- sizeof(mp3buffer), imp3);
- return 0; /* not critical */
- }
- owrite = (int) fwrite(mp3buffer, 1, imp3, outf);
- if (owrite != imp3) {
- error_printf("Error writing ID3v1 tag \n");
- return 1;
- }
- return 0;
-}
-
-
-static int
-lame_encoder_loop(lame_global_flags * gf, FILE * outf, int nogap, char *inPath, char *outPath)
-{
- unsigned char mp3buffer[LAME_MAXMP3BUFFER];
- int Buffer[2][1152];
- int iread, imp3, owrite;
- size_t id3v2_size;
-
- encoder_progress_begin(gf, inPath, outPath);
-
- id3v2_size = lame_get_id3v2_tag(gf, 0, 0);
- if (id3v2_size > 0) {
- unsigned char *id3v2tag = malloc(id3v2_size);
- if (id3v2tag != 0) {
- imp3 = lame_get_id3v2_tag(gf, id3v2tag, id3v2_size);
- owrite = (int) fwrite(id3v2tag, 1, imp3, outf);
- free(id3v2tag);
- if (owrite != imp3) {
- encoder_progress_end(gf);
- error_printf("Error writing ID3v2 tag \n");
- return 1;
- }
- }
- }
- else {
- unsigned char* id3v2tag = getOldTag(gf);
- id3v2_size = sizeOfOldTag(gf);
- if ( id3v2_size > 0 ) {
- size_t owrite = fwrite(id3v2tag, 1, id3v2_size, outf);
- if (owrite != id3v2_size) {
- encoder_progress_end(gf);
- error_printf("Error writing ID3v2 tag \n");
- return 1;
- }
- }
- }
- if (global_writer.flush_write == 1) {
- fflush(outf);
- }
-
- /* encode until we hit eof */
- do {
- /* read in 'iread' samples */
- iread = get_audio(gf, Buffer);
-
- if (iread >= 0) {
- encoder_progress(gf);
-
- /* encode */
- imp3 = 0;
- imp3 = lame_encode_buffer_int(gf, Buffer[0], Buffer[1], iread,
- mp3buffer, sizeof(mp3buffer));
-
- /* was our output buffer big enough? */
- if (imp3 < 0) {
- if (imp3 == -1)
- error_printf("mp3 buffer is not big enough... \n");
- else
- error_printf("mp3 internal error: error code=%i\n", imp3);
- return 1;
- }
- owrite = (int) fwrite(mp3buffer, 1, imp3, outf);
- if (owrite != imp3) {
- error_printf("Error writing mp3 output \n");
- return 1;
- }
- }
- if (global_writer.flush_write == 1) {
- fflush(outf);
- }
- } while (iread > 0);
-
- if (nogap)
- imp3 = lame_encode_flush_nogap(gf, mp3buffer, sizeof(mp3buffer)); /* may return one more mp3 frame */
- else
- imp3 = lame_encode_flush(gf, mp3buffer, sizeof(mp3buffer)); /* may return one more mp3 frame */
-
- if (imp3 < 0) {
- if (imp3 == -1)
- error_printf("mp3 buffer is not big enough... \n");
- else
- error_printf("mp3 internal error: error code=%i\n", imp3);
- return 1;
-
- }
-
- encoder_progress_end(gf);
-
- owrite = (int) fwrite(mp3buffer, 1, imp3, outf);
- if (owrite != imp3) {
- error_printf("Error writing mp3 output \n");
- return 1;
- }
- if (global_writer.flush_write == 1) {
- fflush(outf);
- }
- imp3 = write_id3v1_tag(gf, outf);
- if (global_writer.flush_write == 1) {
- fflush(outf);
- }
- if (imp3) {
- return 1;
- }
- write_xing_frame(gf, outf, id3v2_size);
- if (global_writer.flush_write == 1) {
- fflush(outf);
- }
- if (global_ui_config.silent <= 0) {
- print_trailing_info(gf);
- }
- return 0;
-}
-
-
-static int
-lame_encoder(lame_global_flags * gf, FILE * outf, int nogap, char *inPath, char *outPath)
-{
- int ret;
-
- ret = lame_encoder_loop(gf, outf, nogap, inPath, outPath);
- fclose(outf); /* close the output file */
- close_infile(); /* close the input file */
- return ret;
-}
-
-
-static void
-parse_nogap_filenames(int nogapout, char const *inPath, char *outPath, char *outdir)
-{
- char const *slasher;
- size_t n;
-
- /* FIXME: replace strcpy by safer strncpy */
- strcpy(outPath, outdir);
- if (!nogapout) {
- strncpy(outPath, inPath, PATH_MAX + 1 - 4);
- n = strlen(outPath);
- /* nuke old extension, if one */
- if (outPath[n - 3] == 'w'
- && outPath[n - 2] == 'a' && outPath[n - 1] == 'v' && outPath[n - 4] == '.') {
- outPath[n - 3] = 'm';
- outPath[n - 2] = 'p';
- outPath[n - 1] = '3';
- }
- else {
- outPath[n + 0] = '.';
- outPath[n + 1] = 'm';
- outPath[n + 2] = 'p';
- outPath[n + 3] = '3';
- outPath[n + 4] = 0;
- }
- }
- else {
- slasher = inPath;
- slasher += PATH_MAX + 1 - 4;
-
- /* backseek to last dir delemiter */
- while (*slasher != '/' && *slasher != '\\' && slasher != inPath && *slasher != ':') {
- slasher--;
- }
-
- /* skip one foward if needed */
- if (slasher != inPath
- && (outPath[strlen(outPath) - 1] == '/'
- || outPath[strlen(outPath) - 1] == '\\' || outPath[strlen(outPath) - 1] == ':'))
- slasher++;
- else if (slasher == inPath
- && (outPath[strlen(outPath) - 1] != '/'
- &&
- outPath[strlen(outPath) - 1] != '\\' && outPath[strlen(outPath) - 1] != ':'))
- /* FIXME: replace strcat by safer strncat */
-#ifdef _WIN32
- strncat(outPath, "\\", PATH_MAX + 1 - 4);
-#elif __OS2__
- strncat(outPath, "\\", PATH_MAX + 1 - 4);
-#else
- strncat(outPath, "/", PATH_MAX + 1 - 4);
-#endif
-
- strncat(outPath, slasher, PATH_MAX + 1 - 4);
- n = strlen(outPath);
- /* nuke old extension */
- if (outPath[n - 3] == 'w'
- && outPath[n - 2] == 'a' && outPath[n - 1] == 'v' && outPath[n - 4] == '.') {
- outPath[n - 3] = 'm';
- outPath[n - 2] = 'p';
- outPath[n - 1] = '3';
- }
- else {
- outPath[n + 0] = '.';
- outPath[n + 1] = 'm';
- outPath[n + 2] = 'p';
- outPath[n + 3] = '3';
- outPath[n + 4] = 0;
- }
- }
-}
-
-
-int
-lame_main(lame_t gf, int argc, char **argv)
-{
- char inPath[PATH_MAX + 1];
- char outPath[PATH_MAX + 1];
- char nogapdir[PATH_MAX + 1];
- /* support for "nogap" encoding of up to 200 .wav files */
-#define MAX_NOGAP 200
- int nogapout = 0;
- int max_nogap = MAX_NOGAP;
- char nogap_inPath_[MAX_NOGAP][PATH_MAX + 1];
- char *nogap_inPath[MAX_NOGAP];
-
- int ret;
- int i;
- FILE *outf;
-
- lame_set_msgf(gf, &frontend_msgf);
- lame_set_errorf(gf, &frontend_errorf);
- lame_set_debugf(gf, &frontend_debugf);
- if (argc <= 1) {
- usage(stderr, argv[0]); /* no command-line args, print usage, exit */
- return 1;
- }
-
- memset(inPath, 0, sizeof(inPath));
- memset(nogap_inPath_, 0, sizeof(nogap_inPath_));
- for (i = 0; i < MAX_NOGAP; ++i) {
- nogap_inPath[i] = &nogap_inPath_[i][0];
- }
-
- /* parse the command line arguments, setting various flags in the
- * struct 'gf'. If you want to parse your own arguments,
- * or call libmp3lame from a program which uses a GUI to set arguments,
- * skip this call and set the values of interest in the gf struct.
- * (see the file API and lame.h for documentation about these parameters)
- */
- {
- char *str = lame_getenv("LAMEOPT");
- parse_args_from_string(gf, str, inPath, outPath);
- free(str);
- }
- ret = parse_args(gf, argc, argv, inPath, outPath, nogap_inPath, &max_nogap);
- if (ret < 0) {
- return ret == -2 ? 0 : 1;
- }
- if (global_ui_config.update_interval < 0.)
- global_ui_config.update_interval = 2.;
-
- if (outPath[0] != '\0' && max_nogap > 0) {
- strncpy(nogapdir, outPath, PATH_MAX + 1);
- nogapout = 1;
- }
-
- /* initialize input file. This also sets samplerate and as much
- other data on the input file as available in the headers */
- if (max_nogap > 0) {
- /* for nogap encoding of multiple input files, it is not possible to
- * specify the output file name, only an optional output directory. */
- parse_nogap_filenames(nogapout, nogap_inPath[0], outPath, nogapdir);
- outf = init_files(gf, nogap_inPath[0], outPath);
- }
- else {
- outf = init_files(gf, inPath, outPath);
- }
- if (outf == NULL) {
- return -1;
- }
- /* turn off automatic writing of ID3 tag data into mp3 stream
- * we have to call it before 'lame_init_params', because that
- * function would spit out ID3v2 tag data.
- */
- lame_set_write_id3tag_automatic(gf, 0);
-
- /* Now that all the options are set, lame needs to analyze them and
- * set some more internal options and check for problems
- */
- ret = lame_init_params(gf);
- if (ret < 0) {
- if (ret == -1) {
- display_bitrates(stderr);
- }
- error_printf("fatal error during initialization\n");
- return ret;
- }
-
- if (global_ui_config.silent > 0) {
- global_ui_config.brhist = 0; /* turn off VBR histogram */
- }
-
- if (lame_get_decode_only(gf)) {
- /* decode an mp3 file to a .wav */
- ret = lame_decoder(gf, outf, inPath, outPath);
- }
- else if (max_nogap == 0) {
- /* encode a single input file */
- ret = lame_encoder(gf, outf, 0, inPath, outPath);
- }
- else {
- /* encode multiple input files using nogap option */
- for (i = 0; i < max_nogap; ++i) {
- int use_flush_nogap = (i != (max_nogap - 1));
- if (i > 0) {
- parse_nogap_filenames(nogapout, nogap_inPath[i], outPath, nogapdir);
- /* note: if init_files changes anything, like
- samplerate, num_channels, etc, we are screwed */
- outf = init_files(gf, nogap_inPath[i], outPath);
- /* reinitialize bitstream for next encoding. this is normally done
- * by lame_init_params(), but we cannot call that routine twice */
- lame_init_bitstream(gf);
- }
- lame_set_nogap_total(gf, max_nogap);
- lame_set_nogap_currentindex(gf, i);
- ret = lame_encoder(gf, outf, use_flush_nogap, nogap_inPath[i], outPath);
- }
- }
- return ret;
-}
projects / 16.git / blobdiff