Merge branch 't/array_size'
[paraslash.git] / afh.c
1 /*
2 * Copyright (C) 2008-2011 Andre Noll <maan@systemlinux.org>
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 #include <dirent.h>
11 #include <sys/time.h>
12
13 #include "para.h"
14 #include "string.h"
15 #include "afh.cmdline.h"
16 #include "fd.h"
17 #include "afh.h"
18 #include "error.h"
19
20 static struct afh_args_info conf;
21 /** The list of all status items */
22 const char *status_item_list[] = {STATUS_ITEM_ARRAY};
23
24 INIT_AFH_ERRLISTS;
25
26 static int loglevel;
27 INIT_STDERR_LOGGING(loglevel)
28
29 static void print_info(int audio_format_num, struct afh_info *afhi)
30 {
31 printf("%s: %dkbit/s\n" /* bitrate */
32 "%s: %s\n" /* format */
33 "%s: %dHz\n" /* frequency */
34 "%s: %d\n" /* channels */
35 "%s: %lu\n" /* seconds total */
36 "%s: %lu: %lu\n" /* chunk time */
37 "%s: %lu\n" /* num chunks */
38 "%s: %s\n" /* techinfo */
39 "%s: %s\n" /* artist */
40 "%s: %s\n" /* title */
41 "%s: %s\n" /* year */
42 "%s: %s\n" /* album */
43 "%s: %s\n", /* comment */
44 status_item_list[SI_BITRATE], afhi->bitrate,
45 status_item_list[SI_FORMAT], audio_format_name(audio_format_num),
46 status_item_list[SI_FREQUENCY], afhi->frequency,
47 status_item_list[SI_CHANNELS], afhi->channels,
48 status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
49 status_item_list[SI_CHUNK_TIME], (long unsigned)afhi->chunk_tv.tv_sec,
50 (long unsigned)afhi->chunk_tv.tv_usec,
51 status_item_list[SI_NUM_CHUNKS], afhi->chunks_total,
52 status_item_list[SI_TECHINFO], afhi->techinfo? afhi->techinfo : "",
53 status_item_list[SI_ARTIST], afhi->tags.artist? afhi->tags.artist : "",
54 status_item_list[SI_TITLE], afhi->tags.title? afhi->tags.title : "",
55 status_item_list[SI_YEAR], afhi->tags.year? afhi->tags.year : "",
56 status_item_list[SI_ALBUM], afhi->tags.album? afhi->tags.album : "",
57 status_item_list[SI_COMMENT], afhi->tags.comment? afhi->tags.comment : ""
58 );
59 }
60
61 static void print_chunk_table(struct afh_info *afhi)
62 {
63 int i;
64
65 if (!conf.human_given) {
66 printf("chunk_table: ");
67 for (i = 0; i <= afhi->chunks_total; i++)
68 printf("%u ", afhi->chunk_table[i]);
69 printf("\n");
70 return;
71 }
72 for (i = 1; i <= afhi->chunks_total; i++) {
73 struct timeval tv;
74 long unsigned from, to;
75 tv_scale(i - 1, &afhi->chunk_tv, &tv);
76 from = tv2ms(&tv);
77 tv_scale(i, &afhi->chunk_tv, &tv);
78 to = tv2ms(&tv);
79 printf("%d [%lu.%03lu - %lu.%03lu] %u - %u (%u)\n", i - 1,
80 from / 1000, from % 1000, to / 1000, to % 1000,
81 afhi->chunk_table[i - 1], afhi->chunk_table[i],
82 afhi->chunk_table[i] - afhi->chunk_table[i - 1]);
83 }
84 }
85
86 static int cat_file(struct afh_info *afhi, int audio_format_id,
87 void *audio_file_data, size_t audio_file_size)
88 {
89 int ret;
90 struct timeval stream_start;
91 long unsigned i, first_chunk, last_chunk;
92 const char *buf;
93 char *header;
94 size_t size;
95
96 if (conf.begin_chunk_arg < 0) {
97 if (-conf.begin_chunk_arg > afhi->chunks_total)
98 return -ERRNO_TO_PARA_ERROR(EINVAL);
99 first_chunk = afhi->chunks_total + conf.begin_chunk_arg;
100 } else
101 first_chunk = conf.begin_chunk_arg;
102 if (conf.end_chunk_given) {
103 if (conf.end_chunk_arg < 0) {
104 if (-conf.end_chunk_arg > afhi->chunks_total)
105 return -ERRNO_TO_PARA_ERROR(EINVAL);
106 last_chunk = afhi->chunks_total + conf.end_chunk_arg;
107 } else {
108 if (conf.end_chunk_arg >= afhi->chunks_total)
109 return -ERRNO_TO_PARA_ERROR(EINVAL);
110 last_chunk = conf.end_chunk_arg;
111 }
112 } else
113 last_chunk = afhi->chunks_total - 1;
114 if (first_chunk >= last_chunk)
115 return -ERRNO_TO_PARA_ERROR(EINVAL);
116 if (!afhi->chunks_total)
117 return 1;
118 if (first_chunk > 0 && !conf.no_header_given) {
119 afh_get_header(afhi, audio_format_id, audio_file_data, audio_file_size,
120 &header, &size);
121 if (size > 0) {
122 PARA_INFO_LOG("writing header (%zu bytes)\n", size);
123 ret = write(STDOUT_FILENO, header, size); /* FIXME */
124 afh_free_header(header, audio_format_id);
125 if (ret < 0)
126 return ret;
127 if (ret != size)
128 return -E_AFH_SHORT_WRITE;
129 }
130 }
131 PARA_NOTICE_LOG("writing chunks %lu - %lu\n", first_chunk, last_chunk);
132 gettimeofday(&stream_start, NULL);
133 for (i = first_chunk; i <= last_chunk; i++) {
134 struct timeval now, diff, next_chunk;
135 afh_get_chunk(i, afhi, audio_file_data, &buf, &size);
136 PARA_DEBUG_LOG("chunk %lu: size %zu\n", i, size);
137 if (conf.just_in_time_given) {
138 compute_chunk_time(i - first_chunk, &afhi->chunk_tv,
139 &stream_start, &next_chunk);
140 gettimeofday(&now, NULL);
141 ret = tv_diff(&next_chunk, &now, &diff);
142 if (ret > 0) {
143 ret = para_select(1, NULL, NULL, &diff);
144 if (ret < 0)
145 return ret;
146 }
147 }
148 if (!size)
149 continue;
150 PARA_INFO_LOG("writing chunk %lu\n", i);
151 ret = write_all(STDOUT_FILENO, buf, &size);
152 if (ret < 0)
153 return ret;
154 }
155 return 1;
156 }
157
158 /**
159 * The main function of para_afh.
160 *
161 * \param argc Usual argument count.
162 * \param argv Usual argument vector.
163 *
164 * \return \p EXIT_FAILURE or \p EXIT_SUCCESS.
165 */
166 int main(int argc, char **argv)
167 {
168 int i, ret, audio_format_num, fd;
169 void *audio_file_data;
170 size_t audio_file_size;
171 struct afh_info afhi;
172
173 afh_cmdline_parser(argc, argv, &conf);
174 HANDLE_VERSION_FLAG("afh", conf);
175 loglevel = get_loglevel_by_name(conf.loglevel_arg);
176 ret = -E_AFH_SYNTAX;
177 if (conf.inputs_num == 0)
178 goto out;
179 if (conf.stream_given && conf.inputs_num != 1)
180 goto out;
181 afh_init();
182 for (i = 0; i < conf.inputs_num; i++) {
183 int ret2;
184 ret = mmap_full_file(conf.inputs[i], O_RDONLY, &audio_file_data,
185 &audio_file_size, &fd);
186 if (ret < 0)
187 goto out;
188 ret = compute_afhi(conf.inputs[i], audio_file_data, audio_file_size,
189 fd, &afhi);
190 if (ret < 0)
191 goto out;
192
193 audio_format_num = ret;
194 if (conf.stream_given)
195 ret = cat_file(&afhi, audio_format_num,
196 audio_file_data, audio_file_size);
197 else {
198 printf("File %d: %s\n", i + 1, conf.inputs[i]);
199 print_info(audio_format_num, &afhi);
200 if (conf.chunk_table_given)
201 print_chunk_table(&afhi);
202 printf("\n");
203 }
204 free(afhi.techinfo);
205 free(afhi.tags.artist);
206 free(afhi.tags.title);
207 free(afhi.tags.year);
208 free(afhi.tags.album);
209 free(afhi.tags.comment);
210 free(afhi.chunk_table);
211 ret2 = para_munmap(audio_file_data, audio_file_size);
212 if (ret2 < 0 && ret >= 0)
213 ret = ret2;
214 if (ret < 0)
215 break;
216 }
217 out:
218 if (ret < 0)
219 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
220 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
221 }