vgmstream/src/meta/silence.c

46 lines
1.2 KiB
C

#include "meta.h"
/* silent stream - mainly for engines that need them or dummy subsongs */
VGMSTREAM* init_vgmstream_silence(int channels, int sample_rate, int32_t num_samples) {
VGMSTREAM* vgmstream = NULL;
if (channels <= 0)
channels = 2;
if (sample_rate <= 0)
sample_rate = 48000;
if (num_samples <= 0)
num_samples = 1.0 * sample_rate;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channels, 0);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_SILENCE;
vgmstream->sample_rate = sample_rate;
vgmstream->num_samples = num_samples;
vgmstream->coding_type = coding_SILENCE;
vgmstream->layout_type = layout_none;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}
/* silent stream - for containers that have dummy streams but it's a hassle to detect/filter out */
VGMSTREAM* init_vgmstream_silence_container(int total_subsongs) {
VGMSTREAM* vgmstream = NULL;
vgmstream = init_vgmstream_silence(0, 0, 0);
if (!vgmstream) goto fail;
vgmstream->num_streams = total_subsongs;
snprintf(vgmstream->stream_name, STREAM_NAME_SIZE, "%s", "dummy");
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}