X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=alsa_output.h;fp=alsa_output.h;h=12af16ecbfdd9ade616805fea169f7004899b0ff;hb=194872611b21bb070f4dfcf5beda6c36d25459ea;hp=0000000000000000000000000000000000000000;hpb=beaf0e95b0e474c3088ee8ee74191b6c504fef82;p=nageru

diff --git a/alsa_output.h b/alsa_output.h
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+++ b/alsa_output.h
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+#ifndef _ALSA_OUTPUT_H
+#define _ALSA_OUTPUT_H 1
+
+// Extremely minimalistic ALSA output. Will not resample to fit
+// sound card clock, will not care much about over- or underflows
+// (so it will not block), will not care about A/V sync.
+//
+// This means that if you run it for long enough, clocks will
+// probably drift out of sync enough to make a little pop.
+
+#include <alsa/asoundlib.h>
+
+#include <vector>
+
+class ALSAOutput {
+public:
+	ALSAOutput(int sample_rate, int num_channels);
+	void write(const std::vector<float> &samples);
+
+private:
+	snd_pcm_t *pcm_handle;
+	std::vector<float> buffer;
+	snd_pcm_uframes_t period_size;
+	int num_channels;
+};
+
+#endif  // !defined(_ALSA_OUTPUT_H)