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Add support for MixRamp tags

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Adds mixrampdb and mixrampdelay commands.  Reads MIXRAP_START and
MIXRAMP_END tags from FLAC files and overlaps instead of crossfading.
This commit is contained in:
Tim Phipps
2010-03-21 18:21:47 +01:00
committed by Max Kellermann
parent e9b75d462c
commit e7a515c8b1
22 changed files with 478 additions and 19 deletions
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47
src/decoder/mad_decoder_plugin.c
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@@ -347,6 +347,47 @@ parse_id3_replay_gain_info(struct replay_gain_info *replay_gain_info,
}
#endif
#ifdef HAVE_ID3TAG
static bool
parse_id3_mixramp(char **mixramp_start, char **mixramp_end,
struct id3_tag *tag)
{
int i;
char *key;
char *value;
struct id3_frame *frame;
bool found = false;
*mixramp_start = NULL;
*mixramp_end = NULL;
for (i = 0; (frame = id3_tag_findframe(tag, "TXXX", i)); i++) {
if (frame->nfields < 3)
continue;
key = (char *)
id3_ucs4_latin1duplicate(id3_field_getstring
(&frame->fields[1]));
value = (char *)
id3_ucs4_latin1duplicate(id3_field_getstring
(&frame->fields[2]));
if (g_ascii_strcasecmp(key, "mixramp_start") == 0) {
*mixramp_start = strdup(value);
found = true;
} else if (g_ascii_strcasecmp(key, "mixramp_end") == 0) {
*mixramp_end = strdup(value);
found = true;
}
free(key);
free(value);
}
return found;
}
#endif
static void mp3_parse_id3(struct mp3_data *data, size_t tagsize,
struct tag **mpd_tag)
{
@@ -403,10 +444,16 @@ static void mp3_parse_id3(struct mp3_data *data, size_t tagsize,
if (data->decoder != NULL) {
struct replay_gain_info rgi;
char *mixramp_start;
char *mixramp_end;
if (parse_id3_replay_gain_info(&rgi, id3_tag)) {
decoder_replay_gain(data->decoder, &rgi);
data->found_replay_gain = true;
}
if (parse_id3_mixramp(&mixramp_start, &mixramp_end, id3_tag)) {
g_debug("setting mixramp_tags");
decoder_mixramp(data->decoder, mixramp_start, mixramp_end);
}
}
id3_tag_delete(id3_tag);