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ggwave-to-file : get input from stdin

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This commit is contained in:
Georgi Gerganov
2021-01-09 14:39:05 +02:00
parent 0cf5da1a4d
commit a25ad60da4
3 changed files with 12 additions and 6 deletions
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2
README.md
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@@ -72,7 +72,7 @@ The [examples](https://github.com/ggerganov/ggwave/blob/master/examples/) folder
| [ggwave-rx](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-rx) | Very basic receive-only program | SDL | | [ggwave-rx](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-rx) | Very basic receive-only program | SDL |
| [ggwave-cli](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-cli) | Command line tool for sending/receiving data through sound | SDL | | [ggwave-cli](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-cli) | Command line tool for sending/receiving data through sound | SDL |
| [ggwave-wasm](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-wasm) | WebAssembly module for web applications | SDL | | [ggwave-wasm](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-wasm) | WebAssembly module for web applications | SDL |
| [ggwave-to-file](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-to-file) | Output generated audio to a file | - | | [ggwave-to-file](https://github.com/ggerganov/ggwave/blob/master/examples/ggwave-to-file) | Output generated waveform to a file | - |
| [waver](https://github.com/ggerganov/ggwave/blob/master/examples/waver) | GUI tool for sending/receiving data through sound | SDL | | [waver](https://github.com/ggerganov/ggwave/blob/master/examples/waver) | GUI tool for sending/receiving data through sound | SDL |
Other projects using **ggwave** or one of its prototypes: Other projects using **ggwave** or one of its prototypes:

4
examples/ggwave-to-file/README.md
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@@ -1,7 +1,7 @@
## ggwave-to-file ## ggwave-to-file
Output generated audio to a file. Output generated waveform to a file.
```bash ```bash
./bin/ggwave-to-file "Hello World!" > example.wav echo "Hello World!" | ./bin/ggwave-to-file > example.wav
``` ```

12
examples/ggwave-to-file/main.cpp
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@@ -7,9 +7,10 @@
#include <cstdio> #include <cstdio>
#include <cstring> #include <cstring>
#include <iostream>
int main(int argc, char** argv) { int main(int argc, char** argv) {
fprintf(stderr, "Usage: %s \"message\" output.wav [-pN]\n", argv[0]); fprintf(stderr, "Usage: %s [-pN]\n", argv[0]);
fprintf(stderr, " -pN - select the transmission protocol\n"); fprintf(stderr, " -pN - select the transmission protocol\n");
fprintf(stderr, "\n"); fprintf(stderr, "\n");
fprintf(stderr, " Available protocols:\n"); fprintf(stderr, " Available protocols:\n");
@@ -20,11 +21,14 @@ int main(int argc, char** argv) {
} }
fprintf(stderr, "\n"); fprintf(stderr, "\n");
if (argc < 2) { if (argc < 1) {
return -1; return -1;
} }
std::string message = argv[1]; fprintf(stderr, "Enter a text message:\n");
std::string message;
std::getline(std::cin, message);
if (message.size() == 0) { if (message.size() == 0) {
fprintf(stderr, "Invalid message: size = 0\n"); fprintf(stderr, "Invalid message: size = 0\n");
@@ -42,6 +46,8 @@ int main(int argc, char** argv) {
auto sampleRateOut = GGWave::kBaseSampleRate; auto sampleRateOut = GGWave::kBaseSampleRate;
fprintf(stderr, "Generating waveform for message '%s' ...\n", message.c_str());
GGWave ggWave(GGWave::kBaseSampleRate, sampleRateOut, 1024, 4, 2); GGWave ggWave(GGWave::kBaseSampleRate, sampleRateOut, 1024, 4, 2);
ggWave.init(message.size(), message.data(), ggWave.getTxProtocols()[protocolId], volume); ggWave.init(message.size(), message.data(), ggWave.getTxProtocols()[protocolId], volume);