/*
- * Copyright (C) 2008-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2008 Andre Noll <maan@tuebingen.mpg.de>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file afh.c Paraslash's standalone audio format handler tool. */
#include <regex.h>
-#include <dirent.h>
-#include <sys/time.h>
#include "para.h"
#include "string.h"
#include "fd.h"
#include "afh.h"
#include "error.h"
+#include "version.h"
+#include "ggo.h"
static struct afh_args_info conf;
-/** The list of all status items */
-const char *status_item_list[] = {STATUS_ITEM_ARRAY};
-
INIT_AFH_ERRLISTS;
static int loglevel;
INIT_STDERR_LOGGING(loglevel)
+static inline bool tag_needs_update(bool given, const char *tag,
+ const char *arg)
+{
+ return given && (!tag || strcmp(tag, arg) != 0);
+}
+
+static int rewrite_tags(const char *name, int input_fd, void *map,
+ size_t map_size, int audio_format_id, struct afh_info *afhi)
+{
+ struct taginfo *tags = &afhi->tags;
+ bool modified = false;
+ char *tmp_name;
+ int output_fd = -1, ret;
+ struct stat sb;
+
+ if (tag_needs_update(conf.year_given, tags->year, conf.year_arg)) {
+ free(tags->year);
+ tags->year = para_strdup(conf.year_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.title_given, tags->title, conf.title_arg)) {
+ free(tags->title);
+ tags->title = para_strdup(conf.title_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.artist_given, tags->artist,
+ conf.artist_arg)) {
+ free(tags->artist);
+ tags->artist = para_strdup(conf.artist_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.album_given, tags->album, conf.album_arg)) {
+ free(tags->album);
+ tags->album = para_strdup(conf.album_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.comment_given, tags->comment,
+ conf.comment_arg)) {
+ free(tags->comment);
+ tags->comment = para_strdup(conf.comment_arg);
+ modified = true;
+ }
+ if (!modified) {
+ PARA_WARNING_LOG("no modifications necessary\n");
+ return 0;
+ }
+ /*
+ * mkstmp() creates the temporary file with permissions 0600, but we
+ * like it to have the same permissions as the original file, so we
+ * have to get this information.
+ */
+ if (fstat(input_fd, &sb) < 0) {
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ PARA_ERROR_LOG("failed to fstat fd %d (%s)\n", input_fd, name);
+ return ret;
+ }
+ tmp_name = make_message("%s.XXXXXX", name);
+ ret = mkstemp(tmp_name);
+ if (ret < 0) {
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ PARA_ERROR_LOG("could not create temporary file\n");
+ goto out;
+ }
+ output_fd = ret;
+ if (fchmod(output_fd, sb.st_mode) < 0) {
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ PARA_ERROR_LOG("failed to fchmod fd %d (%s)\n", output_fd,
+ tmp_name);
+ goto out;
+ }
+ ret = afh_rewrite_tags(audio_format_id, map, map_size, tags, output_fd,
+ tmp_name);
+ if (ret < 0)
+ goto out;
+ if (conf.backup_given) {
+ char *backup_name = make_message("%s~", name);
+ ret = xrename(name, backup_name);
+ free(backup_name);
+ if (ret < 0)
+ goto out;
+ }
+ ret = xrename(tmp_name, name);
+out:
+ if (ret < 0 && output_fd >= 0)
+ unlink(tmp_name); /* ignore errors */
+ free(tmp_name);
+ if (output_fd >= 0)
+ close(output_fd);
+ return ret;
+}
+
static void print_info(int audio_format_num, struct afh_info *afhi)
{
- printf("%s: %dkbit/s\n" /* bitrate */
- "%s: %s\n" /* format */
- "%s: %dHz\n" /* frequency */
- "%s: %d\n" /* channels */
- "%s: %lu\n" /* seconds total */
- "%s: %lu: %lu\n" /* chunk time */
- "%s: %lu\n" /* num chunks */
- "%s: %s\n" /* techinfo */
- "%s: %s\n" /* artist */
- "%s: %s\n" /* title */
- "%s: %s\n" /* year */
- "%s: %s\n" /* album */
- "%s: %s\n", /* comment */
- status_item_list[SI_BITRATE], afhi->bitrate,
- status_item_list[SI_FORMAT], audio_format_name(audio_format_num),
- status_item_list[SI_FREQUENCY], afhi->frequency,
- status_item_list[SI_CHANNELS], afhi->channels,
- status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
- status_item_list[SI_CHUNK_TIME], (long unsigned)afhi->chunk_tv.tv_sec,
- (long unsigned)afhi->chunk_tv.tv_usec,
- status_item_list[SI_NUM_CHUNKS], afhi->chunks_total,
- status_item_list[SI_TECHINFO], afhi->techinfo? afhi->techinfo : "",
- status_item_list[SI_ARTIST], afhi->tags.artist? afhi->tags.artist : "",
- status_item_list[SI_TITLE], afhi->tags.title? afhi->tags.title : "",
- status_item_list[SI_YEAR], afhi->tags.year? afhi->tags.year : "",
- status_item_list[SI_ALBUM], afhi->tags.album? afhi->tags.album : "",
- status_item_list[SI_COMMENT], afhi->tags.comment? afhi->tags.comment : ""
- );
+ char *msg;
+
+ afh_get_afhi_txt(audio_format_num, afhi, &msg);
+ printf("%s", msg);
+ free(msg);
}
static void print_chunk_table(struct afh_info *afhi)
{
int i;
- if (!conf.human_given) {
+ if (conf.parser_friendly_given) {
printf("chunk_table: ");
for (i = 0; i <= afhi->chunks_total; i++)
printf("%u ", afhi->chunk_table[i]);
from = tv2ms(&tv);
tv_scale(i, &afhi->chunk_tv, &tv);
to = tv2ms(&tv);
- printf("%d [%lu.%03lu - %lu.%03lu] %u - %u (%u)\n", i,
+ printf("%d [%lu.%03lu - %lu.%03lu] %u - %u (%u)\n", i - 1,
from / 1000, from % 1000, to / 1000, to % 1000,
afhi->chunk_table[i - 1], afhi->chunk_table[i],
afhi->chunk_table[i] - afhi->chunk_table[i - 1]);
}
}
-static int cat_file(void *audio_file_data, struct afh_info *afhi)
+__noreturn static void print_help_and_die(void)
{
- int ret;
- struct timeval stream_start;
- long unsigned i, first_chunk, last_chunk;
- const char *buf;
- size_t size;
-
-
- if (conf.begin_chunk_arg < 0) {
- if (-conf.begin_chunk_arg > afhi->chunks_total)
- return -ERRNO_TO_PARA_ERROR(EINVAL);
- first_chunk = afhi->chunks_total + conf.begin_chunk_arg;
- } else
- first_chunk = conf.begin_chunk_arg;
- if (conf.end_chunk_given) {
- if (conf.end_chunk_arg < 0) {
- if (-conf.end_chunk_arg > afhi->chunks_total)
- return -ERRNO_TO_PARA_ERROR(EINVAL);
- last_chunk = afhi->chunks_total + conf.end_chunk_arg;
- } else {
- if (conf.end_chunk_arg >= afhi->chunks_total)
- return -ERRNO_TO_PARA_ERROR(EINVAL);
- last_chunk = conf.end_chunk_arg;
- }
- } else
- last_chunk = afhi->chunks_total - 1;
- if (first_chunk >= last_chunk)
- return -ERRNO_TO_PARA_ERROR(EINVAL);
- if (!afhi->chunks_total)
- return 1;
- afh_get_header(afhi, audio_file_data, &buf, &size);
- if (size && first_chunk && !conf.no_header_given) {
- PARA_INFO_LOG("writing audio file header (%zu bytes)\n", size);
- ret = write(STDOUT_FILENO, buf, size);
- if (ret < 0)
- return ret;
- if (ret != size)
- return -E_AFH_SHORT_WRITE;
- }
- PARA_NOTICE_LOG("writing chunks %lu - %lu\n", first_chunk, last_chunk);
- gettimeofday(&stream_start, NULL);
- for (i = first_chunk; i <= last_chunk; i++) {
- struct timeval now, diff, next_chunk;
- afh_get_chunk(i, afhi, audio_file_data, &buf, &size);
- PARA_DEBUG_LOG("chunk %lu: size %zu\n", i, size);
- if (conf.just_in_time_given) {
- compute_chunk_time(i - first_chunk, &afhi->chunk_tv,
- &stream_start, &next_chunk);
- gettimeofday(&now, NULL);
- ret = tv_diff(&next_chunk, &now, &diff);
- if (ret > 0) {
- ret = para_select(1, NULL, NULL, &diff);
- if (ret < 0)
- return ret;
- }
- }
- if (!size)
- continue;
- PARA_INFO_LOG("writing chunk %lu\n", i);
- ret = write_all(STDOUT_FILENO, buf, &size);
- if (ret < 0)
- return ret;
- }
- return 1;
+ struct ggo_help h = DEFINE_GGO_HELP(afh);
+ int d = conf.detailed_help_given;
+ unsigned flags = d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS;
+
+ ggo_print_help(&h, flags);
+ printf("supported audio formats: %s\n", AUDIO_FORMAT_HANDLERS);
+ exit(EXIT_SUCCESS);
}
/**
*/
int main(int argc, char **argv)
{
- int i, ret, audio_format_num, fd;
+ int i, ret = 0, audio_format_num, fd;
void *audio_file_data;
size_t audio_file_size;
struct afh_info afhi;
afh_cmdline_parser(argc, argv, &conf);
- HANDLE_VERSION_FLAG("afh", conf);
loglevel = get_loglevel_by_name(conf.loglevel_arg);
- ret = -E_AFH_SYNTAX;
- if (conf.inputs_num == 0)
- goto out;
- if (conf.stream_given && conf.inputs_num != 1)
- goto out;
+ version_handle_flag("afh", conf.version_given);
+ if (conf.help_given || conf.detailed_help_given || conf.inputs_num == 0)
+ print_help_and_die();
afh_init();
for (i = 0; i < conf.inputs_num; i++) {
int ret2;
ret = mmap_full_file(conf.inputs[i], O_RDONLY, &audio_file_data,
&audio_file_size, &fd);
- if (ret < 0)
+ if (ret < 0) {
+ PARA_ERROR_LOG("failed to mmap \"%s\"\n", conf.inputs[i]);
goto out;
+ }
ret = compute_afhi(conf.inputs[i], audio_file_data, audio_file_size,
fd, &afhi);
- if (ret < 0)
- goto out;
- audio_format_num = ret;
- if (conf.stream_given)
- ret = cat_file(audio_file_data, &afhi);
- else {
- printf("File %d: %s\n", i + 1, conf.inputs[i]);
- print_info(audio_format_num, &afhi);
- if (conf.chunk_table_given)
- print_chunk_table(&afhi);
- free(afhi.techinfo);
- free(afhi.tags.artist);
- free(afhi.tags.title);
- free(afhi.tags.year);
- free(afhi.tags.album);
- free(afhi.tags.comment);
- free(afhi.chunk_table);
- printf("\n");
+ if (ret >= 0) {
+ audio_format_num = ret;
+ if (conf.modify_given) {
+ ret = rewrite_tags(conf.inputs[i], fd, audio_file_data,
+ audio_file_size, audio_format_num, &afhi);
+ } else {
+ printf("File %d: %s\n", i + 1, conf.inputs[i]);
+ print_info(audio_format_num, &afhi);
+ if (conf.chunk_table_given)
+ print_chunk_table(&afhi);
+ printf("\n");
+ }
+ clear_afhi(&afhi);
}
+ close(fd);
ret2 = para_munmap(audio_file_data, audio_file_size);
if (ret2 < 0 && ret >= 0)
ret = ret2;
projects / paraslash.git / blobdiff