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Merge branch 'two-bit-sample-size' of https://github.com/jwmelto/gnss-sdr into jwmelto-two-bit-sample-size

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This commit is contained in:
Carles Fernandez
2021-09-27 12:04:14 +02:00
parent 715987e749 530684d241
commit ba815abcde
1 changed files with 13 additions and 3 deletions
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16
src/algorithms/signal_source/adapters/two_bit_packed_file_signal_source.cc
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@@ -99,9 +99,19 @@ std::tuple<size_t, bool> TwoBitPackedFileSignalSource::itemTypeToSize()
return std::make_tuple(item_size, is_complex_t); return std::make_tuple(item_size, is_complex_t);
} }
// Each sample is 2 bits; if the item_type() is char, then the size is 8/2 = 4 packets per sample // item_size() reports in bytes. Each sample is 2 bits, so the size is 8/2 = 4 packets per
// If the item_type() is short, then the size is 16/2 = 8 packets per sample // byte times the size of each item. A complex file has I and Q interleaved, so there are
double TwoBitPackedFileSignalSource::packetsPerSample() const { return item_size() / 2.0; } // half as many (complex) samples as float
double TwoBitPackedFileSignalSource::packetsPerSample() const
{
auto packets = item_size() * 4.0;
if (is_complex())
{
packets /= 2;
}
return packets;
}
gnss_shared_ptr<gr::block> TwoBitPackedFileSignalSource::source() const { return char_to_float_; } gnss_shared_ptr<gr::block> TwoBitPackedFileSignalSource::source() const { return char_to_float_; }
void TwoBitPackedFileSignalSource::create_file_source_hook() void TwoBitPackedFileSignalSource::create_file_source_hook()