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aplaymidi2: Show meta data texts

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Now aplaymidi2 shows the meta data texts embedded in Flex Data
messages such as copyright and lyrics.  The text output isn't
synchronized yet with the actual position, though.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2024-07-08 18:32:18 +02:00
parent 330741d523
commit 68491dd464
1 changed files with 117 additions and 0 deletions
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117
seq/aplaymidi2/aplaymidi2.c
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@ -288,6 +288,117 @@ static void send_ump(const uint32_t *ump, int len)
snd_seq_ump_event_output(seq, &ev);
}
struct flexdata_text_prefix {
unsigned char status_bank;
unsigned char status;
const char *prefix;
};
static struct flexdata_text_prefix text_prefix[] = {
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_PROJECT_NAME,
.prefix = "Project" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_SONG_NAME,
.prefix = "Song" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_MIDI_CLIP_NAME,
.prefix = "MIDI Clip" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_COPYRIGHT_NOTICE,
.prefix = "Copyright" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_COMPOSER_NAME,
.prefix = "Composer" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_LYRICIST_NAME,
.prefix = "Lyricist" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_ARRANGER_NAME,
.prefix = "Arranger" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_PUBLISHER_NAME,
.prefix = "Publisher" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_PRIMARY_PERFORMER,
.prefix = "Performer" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_ACCOMPANY_PERFORMAER,
.prefix = "Accompany Performer" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_RECORDING_DATE,
.prefix = "Recording Date" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_METADATA,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_RECORDING_LOCATION,
.prefix = "Recording Location" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_PERF_TEXT,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_LYRICS,
.prefix = "Lyrics" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_PERF_TEXT,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_LYRICS_LANGUAGE,
.prefix = "Lyrics Language" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_PERF_TEXT,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_RUBY,
.prefix = "Ruby" },
{ .status_bank = SND_UMP_FLEX_DATA_MSG_BANK_PERF_TEXT,
.status = SND_UMP_FLEX_DATA_MSG_STATUS_RUBY_LANGUAGE,
.prefix = "Ruby Language" },
{}
};
static void show_text(const uint32_t *ump)
{
static unsigned char textbuf[256];
static int len;
const snd_ump_msg_flex_data_t *fh =
(const snd_ump_msg_flex_data_t *)ump;
const char *prefix;
int i;
if (fh->meta.format == SND_UMP_FLEX_DATA_MSG_FORMAT_SINGLE ||
fh->meta.format == SND_UMP_FLEX_DATA_MSG_FORMAT_START)
len = 0;
for (i = 0; i < 12 && len < (int)sizeof(textbuf); i++) {
textbuf[len] = fh->meta.data[i / 4] >> ((3 - (i % 4)) * 8);
if (!textbuf[len])
break;
switch (textbuf[len]) {
case 0x0a: /* end of paragraph */
case 0x0d: /* end of line */
textbuf[len] = '\n';
break;
}
len++;
}
if (fh->meta.format != SND_UMP_FLEX_DATA_MSG_FORMAT_SINGLE &&
fh->meta.format != SND_UMP_FLEX_DATA_MSG_FORMAT_END)
return;
if (len >= (int)sizeof(textbuf))
len = sizeof(textbuf) - 1;
textbuf[len] = 0;
prefix = NULL;
for (i = 0; text_prefix[i].status_bank; i++) {
if (text_prefix[i].status_bank == fh->meta.status_bank &&
text_prefix[i].status == fh->meta.status) {
prefix = text_prefix[i].prefix;
break;
}
}
if (prefix) {
printf("%s: %s\n", prefix, textbuf);
} else {
printf("(%d:%d): %s\n", fh->meta.status_bank, fh->meta.status,
textbuf);
}
len = 0;
}
/* play the given MIDI Clip File content */
static void play_midi(FILE *file)
{
@ -318,6 +429,12 @@ static void play_midi(FILE *file)
set_tempo(fh->set_tempo.tempo);
continue;
}
if (fh->meta.status_bank == SND_UMP_FLEX_DATA_MSG_BANK_METADATA ||
fh->meta.status_bank == SND_UMP_FLEX_DATA_MSG_BANK_PERF_TEXT) {
show_text(ump);
continue;
}
} else if (h->type == SND_UMP_MSG_TYPE_STREAM) {
const snd_ump_msg_stream_t *sh =
(const snd_ump_msg_stream_t *)ump;