afh.c

   1 /*
   2  * Copyright (C) 2008 Andre Noll <maan@tuebingen.mpg.de>
   3  *
   4  * Licensed under the GPL v2. For licencing details see COPYING.
   5  */
   6
   7 /** \file afh.c Paraslash's standalone audio format handler tool. */
   8
   9 #include <regex.h>
  10
  11 #include "para.h"
  12 #include "string.h"
  13 #include "afh.cmdline.h"
  14 #include "fd.h"
  15 #include "afh.h"
  16 #include "error.h"
  17 #include "version.h"
  18 #include "ggo.h"
  19
  20 static struct afh_args_info conf;
  21 INIT_AFH_ERRLISTS;
  22
  23 static int loglevel;
  24 INIT_STDERR_LOGGING(loglevel)
  25
  26 static void print_info(int audio_format_num, struct afh_info *afhi)
  27 {
  28         char *msg;
  29
  30         afh_get_afhi_txt(audio_format_num, afhi, &msg);
  31         printf("%s", msg);
  32         free(msg);
  33 }
  34
  35 static void print_chunk_table(struct afh_info *afhi)
  36 {
  37         int i;
  38
  39         if (conf.parser_friendly_given) {
  40                 printf("chunk_table: ");
  41                 for (i = 0; i <= afhi->chunks_total; i++)
  42                         printf("%u ", afhi->chunk_table[i]);
  43                 printf("\n");
  44                 return;
  45         }
  46         for (i = 1; i <= afhi->chunks_total; i++) {
  47                 struct timeval tv;
  48                 long unsigned from, to;
  49                 tv_scale(i - 1, &afhi->chunk_tv, &tv);
  50                 from = tv2ms(&tv);
  51                 tv_scale(i, &afhi->chunk_tv, &tv);
  52                 to = tv2ms(&tv);
  53                 printf("%d [%lu.%03lu - %lu.%03lu] %u - %u (%u)\n", i - 1,
  54                         from / 1000, from % 1000, to / 1000, to % 1000,
  55                         afhi->chunk_table[i - 1], afhi->chunk_table[i],
  56                         afhi->chunk_table[i] - afhi->chunk_table[i - 1]);
  57         }
  58 }
  59
  60 __noreturn static void print_help_and_die(void)
  61 {
  62         struct ggo_help h = DEFINE_GGO_HELP(afh);
  63         int d = conf.detailed_help_given;
  64         unsigned flags = d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS;
  65
  66         ggo_print_help(&h, flags);
  67         printf("supported audio formats: %s\n", AUDIO_FORMAT_HANDLERS);
  68         exit(EXIT_SUCCESS);
  69 }
  70
  71 /**
  72  * The main function of para_afh.
  73  *
  74  * \param argc Usual argument count.
  75  * \param argv Usual argument vector.
  76  *
  77  * \return \p EXIT_FAILURE or \p EXIT_SUCCESS.
  78  */
  79 int main(int argc, char **argv)
  80 {
  81         int i, ret, audio_format_num, fd;
  82         void *audio_file_data;
  83         size_t audio_file_size;
  84         struct afh_info afhi;
  85
  86         afh_cmdline_parser(argc, argv, &conf);
  87         loglevel = get_loglevel_by_name(conf.loglevel_arg);
  88         version_handle_flag("afh", conf.version_given);
  89         if (conf.help_given || conf.detailed_help_given)
  90                 print_help_and_die();
  91         afh_init();
  92         ret = -E_AFH_SYNTAX;
  93         if (conf.inputs_num == 0)
  94                 goto out;
  95         for (i = 0; i < conf.inputs_num; i++) {
  96                 int ret2;
  97                 ret = mmap_full_file(conf.inputs[i], O_RDONLY, &audio_file_data,
  98                         &audio_file_size, &fd);
  99                 if (ret < 0) {
 100                         PARA_ERROR_LOG("failed to mmap \"%s\"\n", conf.inputs[i]);
 101                         goto out;
 102                 }
 103                 ret = compute_afhi(conf.inputs[i], audio_file_data, audio_file_size,
 104                         fd, &afhi);
 105                 if (ret >= 0) {
 106                         audio_format_num = ret;
 107                         printf("File %d: %s\n", i + 1, conf.inputs[i]);
 108                         print_info(audio_format_num, &afhi);
 109                         if (conf.chunk_table_given)
 110                                 print_chunk_table(&afhi);
 111                         printf("\n");
 112                         clear_afhi(&afhi);
 113                 }
 114                 close(fd);
 115                 ret2 = para_munmap(audio_file_data, audio_file_size);
 116                 if (ret2 < 0 && ret >= 0)
 117                         ret = ret2;
 118                 if (ret < 0)
 119                         break;
 120         }
 121 out:
 122         if (ret < 0)
 123                 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
 124         return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
 125 }