diff options
Diffstat (limited to 'gr-blocks/lib/throttle_impl.cc')
| -rw-r--r-- | gr-blocks/lib/throttle_impl.cc | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gr-blocks/lib/throttle_impl.cc b/gr-blocks/lib/throttle_impl.cc index 199ddea588..201d7ce86f 100644 --- a/gr-blocks/lib/throttle_impl.cc +++ b/gr-blocks/lib/throttle_impl.cc @@ -32,7 +32,7 @@ throttle::sptr throttle::make(size_t itemsize, double samples_per_sec, bool igno throttle_impl::throttle_impl(size_t itemsize, double samples_per_second, bool ignore_tags) : sync_block("throttle", io_signature::make(1, 1, itemsize), - io_signature::make(1, 1, itemsize)), + io_signature::make(0, 1, itemsize)), d_itemsize(itemsize), d_ignore_tags(ignore_tags) { @@ -78,8 +78,12 @@ int throttle_impl::work(int noutput_items, // copy all samples output[i] <= input[i] const char* in = (const char*)input_items[0]; - char* out = (char*)output_items[0]; - std::memcpy(out, in, noutput_items * d_itemsize); + + // iff we have a connected output, then copy + if (!output_items.empty()) { + char* out = reinterpret_cast<char*>(output_items[0]); + std::memcpy(out, in, noutput_items * d_itemsize); + } d_total_samples += noutput_items; auto now = std::chrono::steady_clock::now(); |