#include "opus_common.h"
#include "ogg_afh_common.h"
-static const char* opus_suffixes[] = {"opus", NULL};
+static const char * const opus_suffixes[] = {"opus", NULL};
+
+#define OPUS_COMMENT_HEADER "OpusTags"
static bool copy_if_tag_type(const char *tag, int taglen, const char *type,
char **p)
/* min size of a opus header is 16 bytes */
if (length < 16)
return -E_OPUS_COMMENT;
- if (memcmp(p, "OpusTags", 8) != 0)
+ if (memcmp(p, OPUS_COMMENT_HEADER, strlen(OPUS_COMMENT_HEADER)) != 0)
return -E_OPUS_COMMENT;
p += 8;
val = read_u32(p);
p += 4;
if (p + ntags * 4 > end)
return -E_OPUS_COMMENT;
- PARA_INFO_LOG("found %d tag(s)\n", ntags);
+ PARA_INFO_LOG("found %u tag(s)\n", ntags);
for (i = 0; i < ntags; i++, p += val) {
char *tag;
if (ret < 0)
return ret;
afhi->channels = oh->channels;
- afhi->techinfo = make_message("header version %d, input sample rate: %dHz",
+ afhi->techinfo = make_message(
+ "header version %d, input sample rate: %" PRIu32 "Hz",
oh->version, oh->input_sample_rate);
/*
* The input sample rate is irrelevant for afhi->frequency as
return 1;
}
+static size_t opus_make_meta_packet(struct taginfo *tags, char **result)
+{
+ size_t sz;
+ char *buf, *p;
+ size_t comment_len = strlen(tags->comment),
+ artist_len = strlen(tags->artist),
+ title_len = strlen(tags->title),
+ album_len = strlen(tags->album),
+ year_len = strlen(tags->year);
+ uint32_t comment_sz = comment_len,
+ artist_sz = artist_len + strlen("artist="),
+ title_sz = title_len + strlen("title="),
+ album_sz = album_len + strlen("album="),
+ year_sz = year_len + strlen("year=");
+ uint32_t num_tags;
+
+ sz = strlen(OPUS_COMMENT_HEADER)
+ + 4 /* comment length (always present) */
+ + comment_sz
+ + 4; /* number of tags */
+ num_tags = 0;
+ if (artist_len) {
+ num_tags++;
+ sz += 4 + artist_sz;
+ }
+ if (title_len) {
+ num_tags++;
+ sz += 4 + title_sz;
+ }
+ if (album_len) {
+ num_tags++;
+ sz += 4 + album_sz;
+ }
+ if (year_len) {
+ num_tags++;
+ sz += 4 + year_sz;
+ }
+ PARA_DEBUG_LOG("meta packet size: %zu bytes\n", sz);
+ /* terminating zero byte for the last sprintf() */
+ buf = p = para_malloc(sz + 1);
+ memcpy(p, OPUS_COMMENT_HEADER, strlen(OPUS_COMMENT_HEADER));
+ p += strlen(OPUS_COMMENT_HEADER);
+ write_u32(p, comment_sz);
+ p += 4;
+ strcpy(p, tags->comment);
+ p += comment_sz;
+ write_u32(p, num_tags);
+ p += 4;
+ if (artist_len) {
+ write_u32(p, artist_sz);
+ p += 4;
+ sprintf(p, "artist=%s", tags->artist);
+ p += artist_sz;
+ }
+ if (title_len) {
+ write_u32(p, title_sz);
+ p += 4;
+ sprintf(p, "title=%s", tags->title);
+ p += title_sz;
+ }
+ if (album_len) {
+ write_u32(p, album_sz);
+ p += 4;
+ sprintf(p, "album=%s", tags->album);
+ p += album_sz;
+ }
+ if (year_len) {
+ write_u32(p, year_sz);
+ p += 4;
+ sprintf(p, "year=%s", tags->year);
+ p += year_sz;
+ }
+ assert(p == buf + sz);
+ *result = buf;
+ return sz;
+}
+
+static int opus_rewrite_tags(const char *map, size_t mapsize,
+ struct taginfo *tags, int output_fd,
+ __a_unused const char *filename)
+{
+ char *meta_packet;
+ size_t meta_sz;
+ int ret;
+
+ meta_sz = opus_make_meta_packet(tags, &meta_packet);
+ ret = ogg_rewrite_tags(map, mapsize, output_fd, meta_packet, meta_sz);
+ free(meta_packet);
+ return ret;
+}
+
/**
* The init function of the ogg/opus audio format handler.
*
{
afh->get_file_info = opus_get_file_info,
afh->suffixes = opus_suffixes;
+ afh->rewrite_tags = opus_rewrite_tags;
}