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/* This program is licensed under the GNU General Public License,
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* version 2, a copy of which is included with this program.
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* (c) 2000-2001 Michael Smith <msmith@labyrinth.net.au>
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* (c) 2000-2002 Michael Smith <msmith@xiph.org>
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* (c) 2001 Ralph Giles <giles@ashlu.bc.ca>
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* Front end to show how to use vcedit;
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void print_comments(FILE *out, vorbis_comment *vc);
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int add_comment(char *line, vorbis_comment *vc);
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void print_comments(FILE *out, vorbis_comment *vc, int raw);
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int add_comment(char *line, vorbis_comment *vc, int raw);
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param_t *new_param(void);
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void free_param(param_t *param);
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void parse_options(int argc, char *argv[], param_t *param);
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void open_files(param_t *p);
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void close_files(param_t *p);
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if(vcedit_open(state, param->in) < 0)
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fprintf(stderr, "Failed to open file as vorbis: %s\n",
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fprintf(stderr, _("Failed to open file as vorbis: %s\n"),
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vcedit_error(state));
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/* extract and display the comments */
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vc = vcedit_comments(state);
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print_comments(param->com, vc);
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print_comments(param->com, vc, param->raw);
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vcedit_clear(state);
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close_files(param);
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if(vcedit_open(state, param->in) < 0)
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fprintf(stderr, "Failed to open file as vorbis: %s\n",
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fprintf(stderr, _("Failed to open file as vorbis: %s\n"),
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vcedit_error(state));
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for(i=0; i < param->commentcount; i++)
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if(add_comment(param->comments[i], vc) < 0)
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fprintf(stderr, "Bad comment: \"%s\"\n", param->comments[i]);
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if(add_comment(param->comments[i], vc, param->raw) < 0)
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fprintf(stderr, _("Bad comment: \"%s\"\n"), param->comments[i]);
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/* build the replacement structure */
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char *buf = (char *)malloc(sizeof(char)*1024);
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while (fgets(buf, 1024, param->com))
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if (add_comment(buf, vc) < 0) {
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if (add_comment(buf, vc, param->raw) < 0) {
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"bad comment: \"%s\"\n",
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_("bad comment: \"%s\"\n"),
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/* write out the modified stream */
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if(vcedit_write(state, param->out) < 0)
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fprintf(stderr, "Failed to write comments to output file: %s\n",
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fprintf(stderr, _("Failed to write comments to output file: %s\n"),
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vcedit_error(state));
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void print_comments(FILE *out, vorbis_comment *vc)
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void print_comments(FILE *out, vorbis_comment *vc, int raw)
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char *decoded_value;
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for (i = 0; i < vc->comments; i++)
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if (utf8_decode(vc->user_comments[i], &decoded_value) >= 0)
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if (!raw && utf8_decode(vc->user_comments[i], &decoded_value) >= 0)
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fprintf(out, "%s\n", decoded_value);
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free(decoded_value);
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int add_comment(char *line, vorbis_comment *vc)
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int add_comment(char *line, vorbis_comment *vc, int raw)
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char *mark, *value, *utf8_value;
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vorbis_comment_add_tag(vc, line, value);
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/* convert the value from the native charset to UTF-8 */
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if (utf8_encode(value, &utf8_value) >= 0) {
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else if (utf8_encode(value, &utf8_value) >= 0) {
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/* append the comment and return */
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vorbis_comment_add_tag(vc, line, utf8_value);
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free(utf8_value);
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fprintf(stderr, "Couldn't convert comment to UTF8, "
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fprintf(stderr, _("Couldn't convert comment to UTF8, "
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" vorbiscomment [-l] file.ogg (to list the comments)\n"
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" vorbiscomment -a in.ogg out.ogg (to append comments)\n"
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" vorbiscomment -w in.ogg out.ogg (to modify comments)\n"
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" in the write case, a new set of comments in the form\n"
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" 'TAG=value' is expected on stdin. This set will\n"
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" completely replace the existing set.\n"
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" Either of -a and -w can take only a single filename,\n"
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" in which case a temporary file will be used.\n"
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" -c can be used to take comments from a specified file\n"
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" instead of stdin.\n"
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" Example: vorbiscomment -a in.ogg -c comments.txt\n"
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" will append the comments in comments.txt to in.ogg\n"
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" Finally, you may specify any number of tags to add on\n"
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" the command line using the -t option. e.g.\n"
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" vorbiscomment [-Vh]\n"
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" vorbiscomment [-lR] file\n"
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" vorbiscomment [-qR] [-c file] [-t tag] <-a|-w> inputfile [outputfile]\n"
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" -l list the comments\n"
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" -a append comments\n"
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" -w write comments, replacing the existing ones\n"
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" -c <file> read the comments from the specified file\n"
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" -R, --raw read and write comments in utf8\n"
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" If no OUTPUTFILE is specified, vorbiscomment will use a temporary file\n"
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" vorbiscomment reads comments from:\n"
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" - stdin in the form of 'TAG=value'\n"
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" - a specified file instead of stdin, using '-c <FILE>'\n"
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" - the command line, using '-t <TAG>' (disables reading from stdin)\n"
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" vorbiscomment -a in.ogg -c comments.txt\n"
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" vorbiscomment -a in.ogg -t \"ARTIST=Some Guy\" -t \"TITLE=A Title\"\n"
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" (note that when using this, reading comments from the comment\n"
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" file or stdin is disabled)\n"
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" NOTE: Raw mode (--raw, -R) will read and write comments in utf8,\n"
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" rather than converting to the user's character set. This is\n"
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" useful for using vorbiscomment in scripts. However, this is\n"
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" not sufficient for general round-tripping of comments in all\n"
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void free_param(param_t *param) {
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free(param->infilename);
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free(param->outfilename);
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setlocale(LC_ALL, "");
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while ((ret = getopt_long(argc, argv, "alwhqc:t:",
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while ((ret = getopt_long(argc, argv, "alwhqVc:t:R",
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long_options, &option_index)) != -1) {
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fprintf(stderr, "Internal error parsing command options\n");
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fprintf(stderr, _("Internal error parsing command options\n"));
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param->mode = MODE_LIST;
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param->mode = MODE_WRITE;
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param->mode = MODE_APPEND;
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fprintf(stderr, "Vorbiscomment " VERSION "\n");
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if (p->mode == MODE_WRITE || p->mode == MODE_APPEND) {
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/* open output for write mode */
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if(!strcmp(p->infilename, p->outfilename)) {
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fprintf(stderr, _("Input filename may not be the same as output filename\n"));
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if (strncmp(p->outfilename,"-",2) == 0) {
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(strncmp(p->commentfilename,"-",2) == 0)) {
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p->com = fopen(p->commentfilename, "rb");
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p->com = fopen(p->commentfilename, "r");
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if (p->com == NULL) {
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"Error opening comment file '%s'.\n",
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_("Error opening comment file '%s'.\n"),
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p->commentfilename);
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(strncmp(p->commentfilename,"-",2) == 0)) {
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p->com = fopen(p->commentfilename, "wb");
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p->com = fopen(p->commentfilename, "w");
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if (p->com == NULL) {
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"Error opening comment file '%s'\n",
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_("Error opening comment file '%s'\n"),
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p->commentfilename);
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if (p->out != NULL && p->out != stdout) fclose(p->out);
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if (p->com != NULL && p->com != stdout && p->com != stdin) fclose(p->com);
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rename(p->outfilename, p->infilename);
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/* Some platforms fail to rename a file if the new name already exists,
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* so we need to remove, then rename. How stupid.
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if(rename(p->outfilename, p->infilename)) {
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if(remove(p->infilename))
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fprintf(stderr, _("Error removing old file %s\n"), p->infilename);
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else if(rename(p->outfilename, p->infilename))
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fprintf(stderr, _("Error renaming %s to %s\n"), p->outfilename,
added
removed
vorbiscomment/vcomment.c
