2 * Copyright (C) 2008 Andre Noll <maan@tuebingen.mpg.de>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file afh.c Paraslash's standalone audio format handler tool. */
13 #include "afh.cmdline.h"
20 /** Array of error strings. */
23 static struct afh_args_info conf;
26 INIT_STDERR_LOGGING(loglevel)
28 static inline bool tag_needs_update(bool given, const char *tag,
31 return given && (!tag || strcmp(tag, arg) != 0);
34 static int rewrite_tags(const char *name, int input_fd, void *map,
35 size_t map_size, int audio_format_id, struct afh_info *afhi)
37 struct taginfo *tags = &afhi->tags;
38 bool modified = false;
40 int output_fd = -1, ret;
43 if (tag_needs_update(conf.year_given, tags->year, conf.year_arg)) {
45 tags->year = para_strdup(conf.year_arg);
48 if (tag_needs_update(conf.title_given, tags->title, conf.title_arg)) {
50 tags->title = para_strdup(conf.title_arg);
53 if (tag_needs_update(conf.artist_given, tags->artist,
56 tags->artist = para_strdup(conf.artist_arg);
59 if (tag_needs_update(conf.album_given, tags->album, conf.album_arg)) {
61 tags->album = para_strdup(conf.album_arg);
64 if (tag_needs_update(conf.comment_given, tags->comment,
67 tags->comment = para_strdup(conf.comment_arg);
71 PARA_WARNING_LOG("no modifications necessary\n");
75 * mkstmp() creates the temporary file with permissions 0600, but we
76 * like it to have the same permissions as the original file, so we
77 * have to get this information.
79 if (fstat(input_fd, &sb) < 0) {
80 ret = -ERRNO_TO_PARA_ERROR(errno);
81 PARA_ERROR_LOG("failed to fstat fd %d (%s)\n", input_fd, name);
84 tmp_name = make_message("%s.XXXXXX", name);
85 ret = mkstemp(tmp_name);
87 ret = -ERRNO_TO_PARA_ERROR(errno);
88 PARA_ERROR_LOG("could not create temporary file\n");
92 if (fchmod(output_fd, sb.st_mode) < 0) {
93 ret = -ERRNO_TO_PARA_ERROR(errno);
94 PARA_ERROR_LOG("failed to fchmod fd %d (%s)\n", output_fd,
98 ret = afh_rewrite_tags(audio_format_id, map, map_size, tags, output_fd,
102 if (conf.backup_given) {
103 char *backup_name = make_message("%s~", name);
104 ret = xrename(name, backup_name);
109 ret = xrename(tmp_name, name);
111 if (ret < 0 && output_fd >= 0)
112 unlink(tmp_name); /* ignore errors */
119 static void print_info(int audio_format_num, struct afh_info *afhi)
123 afh_get_afhi_txt(audio_format_num, afhi, &msg);
128 static void print_chunk_table(struct afh_info *afhi, int audio_format_id,
129 const void *map, size_t mapsize)
134 for (i = 0; i < afhi->chunks_total; i++) {
136 long unsigned from, to;
139 tv_scale(i, &afhi->chunk_tv, &tv);
141 tv_scale(i + 1, &afhi->chunk_tv, &tv);
143 ret = afh_get_chunk(i, afhi, audio_format_id, map, mapsize,
146 PARA_ERROR_LOG("fatal: chunk %d: %s\n", i,
147 para_strerror(-ret));
150 if (!conf.parser_friendly_given)
151 printf("%d [%lu.%03lu - %lu.%03lu] ", i, from / 1000,
152 from % 1000, to / 1000, to % 1000);
153 printf("%td - %td", buf - (const char *)map,
154 buf + len - (const char *)map);
155 if (!conf.parser_friendly_given)
156 printf(" (%zu)", len);
159 afh_close(ctx, audio_format_id);
162 __noreturn static void print_help_and_die(void)
164 struct ggo_help h = DEFINE_GGO_HELP(afh);
165 int d = conf.detailed_help_given;
166 unsigned flags = d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS;
168 ggo_print_help(&h, flags);
169 printf("supported audio formats: %s\n", AUDIO_FORMAT_HANDLERS);
174 * The main function of para_afh.
176 * \param argc Usual argument count.
177 * \param argv Usual argument vector.
179 * \return \p EXIT_FAILURE or \p EXIT_SUCCESS.
181 int main(int argc, char **argv)
183 int i, ret = 0, audio_format_num, fd;
184 void *audio_file_data;
185 size_t audio_file_size;
186 struct afh_info afhi;
188 afh_cmdline_parser(argc, argv, &conf);
189 loglevel = get_loglevel_by_name(conf.loglevel_arg);
190 version_handle_flag("afh", conf.version_given);
191 if (conf.help_given || conf.detailed_help_given || conf.inputs_num == 0)
192 print_help_and_die();
194 for (i = 0; i < conf.inputs_num; i++) {
196 ret = mmap_full_file(conf.inputs[i], O_RDONLY, &audio_file_data,
197 &audio_file_size, &fd);
199 PARA_ERROR_LOG("failed to mmap \"%s\"\n", conf.inputs[i]);
202 ret = compute_afhi(conf.inputs[i], audio_file_data, audio_file_size,
205 audio_format_num = ret;
206 if (conf.modify_given) {
207 ret = rewrite_tags(conf.inputs[i], fd, audio_file_data,
208 audio_file_size, audio_format_num, &afhi);
210 printf("File %d: %s\n", i + 1, conf.inputs[i]);
211 print_info(audio_format_num, &afhi);
212 if (conf.chunk_table_given)
213 print_chunk_table(&afhi, audio_format_num,
214 audio_file_data, audio_file_size);
219 ret2 = para_munmap(audio_file_data, audio_file_size);
220 if (ret2 < 0 && ret >= 0)
227 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
228 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;