#define MIN_DATA_CHUNK_SAMPLES 10
struct out_context {
+ double scale;
gboolean header_done;
uint64_t samplerate;
int num_channels;
struct sr_channel *ch;
GSList *l;
- (void)options;
-
outc = g_malloc0(sizeof(struct out_context));
o->priv = outc;
+ outc->scale = g_variant_get_double(g_hash_table_lookup(options, "scale"));
for (l = o->sdi->channels; l; l = l->next) {
ch = l->data;
return size;
}
+
static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
GString **out)
{
const struct sr_config *src;
struct sr_channel *ch;
GSList *l;
+ float f;
int num_channels, size, *chan_idx, idx, i, j;
uint8_t *buf;
for (j = 0; j < num_channels; j++) {
idx = chan_idx[j];
buf = outc->chanbuf[idx] + outc->chanbuf_used[idx]++ * 4;
- float_to_le(buf, analog->data[i * num_channels + j]);
+ f = analog->data[i * num_channels + j];
+ if (outc->scale != 0.0)
+ f /= outc->scale;
+ float_to_le(buf, f);
}
}
g_free(chan_idx);
return SR_OK;
}
+static struct sr_option options[] = {
+ { "scale", "Scale", "Scale values by factor", NULL, NULL },
+ ALL_ZERO
+};
+
+static const struct sr_option *get_options(void)
+{
+ if (!options[0].def)
+ options[0].def = g_variant_ref_sink(g_variant_new_double(0.0));
+
+ return options;
+}
+
SR_PRIV struct sr_output_module output_wav = {
.id = "wav",
.name = "WAV",
- .desc = "WAVE file format",
+ .desc = "Microsoft WAV file format",
+ .exts = (const char*[]){"wav", NULL},
+ .options = get_options,
.init = init,
.receive = receive,
.cleanup = cleanup,