void bufpingpong16b(caryll_Buffer *buf, caryll_Buffer *that, size_t *offset, size_t *cp) {
bufwrite16b(buf, *offset);
*cp = buf->cursor;
bufseek(buf, *offset);
bufwrite_bufdel(buf, that);
*offset = buf->cursor;
bufseek(buf, *cp);
}
void buflongalign(caryll_Buffer *buf) {
size_t cp = buf->cursor;
bufseek(buf, buflen(buf));
if (buflen(buf) % 4 == 1) {
bufwrite8(buf, 0);
bufwrite8(buf, 0);
bufwrite8(buf, 0);
} else if (buflen(buf) % 4 == 2) {
bufwrite8(buf, 0);
bufwrite8(buf, 0);
} else if (buflen(buf) % 4 == 3) {
bufwrite8(buf, 0);
}
bufseek(buf, cp);
}
/* Advance the reading index in a handle (relatively to its current position).
Return 0 for success and < 0 for failure */
int bufadvance(int handle_id, off_t offset)
{
const struct memory_handle *h = find_handle(handle_id);
if (!h)
return ERR_HANDLE_NOT_FOUND;
size_t newpos = h->offset + ringbuf_sub(h->ridx, h->data) + offset;
return bufseek(handle_id, newpos);
}
static bool codec_seek_buffer_callback(size_t newpos)
{
logf("codec_seek_buffer_callback");
int ret = bufseek(get_audio_hid(), newpos);
if (ret == 0) {
ci.curpos = newpos;
return true;
}
else {
return false;
}
}
void bufpong(caryll_Buffer *buf, size_t *offset, size_t *cp) {
*offset = buf->cursor;
bufseek(buf, *cp);
}
void bufping16bd(caryll_Buffer *buf, size_t *offset, size_t *shift, size_t *cp) {
bufwrite16b(buf, *offset - *shift);
*cp = buf->cursor;
bufseek(buf, *offset);
}
