common code: Add feature to record received audio and replay it

-W <file.wav> writes a wave file of received audio
-R <file.wav> reads a wave file to feed into decoder

This way you can record a phone and later debug without a phone
and radio equipment.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/common/wave.h b/src/common/wave.h
new file mode 100644
index 0000000..b9575d6
--- /dev/null
+++ b/src/common/wave.h
@@ -0,0 +1,19 @@
+
+typedef struct wave_rec {
+	FILE		*fp;
+	int		samplerate;
+	uint32_t	written;	/* how much samples written */
+} wave_rec_t;
+
+typedef struct wave_play {
+	FILE		*fp;
+	uint32_t	left;		/* how much samples left */
+} wave_play_t;
+
+int wave_create_record(wave_rec_t *rec, const char *filename, int samplerate);
+int wave_create_playback(wave_play_t *play, const char *filename, int samplerate);
+int wave_read(wave_play_t *play, int16_t *samples, int length);
+int wave_write(wave_rec_t *rec, int16_t *samples, int length);
+void wave_destroy_record(wave_rec_t *rec);
+void wave_destroy_playback(wave_play_t *play);
+