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🎥 Command line media player
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#ifndef MPLAYER_AUDIO_IN_H#define MPLAYER_AUDIO_IN_H
#define AUDIO_IN_ALSA 1#define AUDIO_IN_OSS 2#define AUDIO_IN_SNDIO 3
#include "config.h"
#if !HAVE_GPL#error GPL only#endif
struct mp_log;
#if HAVE_ALSA#include <alsa/asoundlib.h>
typedef struct { char *device;
snd_pcm_t *handle; snd_output_t *log; int buffer_time, period_time, chunk_size; size_t bits_per_sample, bits_per_frame;} ai_alsa_t;#endif
#if HAVE_OSS_AUDIOtypedef struct { char *device;
int audio_fd;} ai_oss_t;#endif
#if HAVE_SNDIO#include <sndio.h>
typedef struct { char *device;
struct sio_hdl *hdl;} ai_sndio_t;#endif
typedef struct{ struct mp_log *log; int type; int setup;
/* requested values */ int req_channels; int req_samplerate;
/* real values read-only */ int channels; int samplerate; int blocksize; int bytes_per_sample; int samplesize;
#if HAVE_ALSA ai_alsa_t alsa;#endif#if HAVE_OSS_AUDIO ai_oss_t oss;#endif#if HAVE_SNDIO ai_sndio_t sndio;#endif} audio_in_t;
int audio_in_init(audio_in_t *ai, struct mp_log *log, int type);int audio_in_setup(audio_in_t *ai);int audio_in_set_device(audio_in_t *ai, char *device);int audio_in_set_samplerate(audio_in_t *ai, int rate);int audio_in_set_channels(audio_in_t *ai, int channels);int audio_in_uninit(audio_in_t *ai);int audio_in_start_capture(audio_in_t *ai);int audio_in_read_chunk(audio_in_t *ai, unsigned char *buffer);
#if HAVE_ALSAint ai_alsa_setup(audio_in_t *ai);int ai_alsa_init(audio_in_t *ai);int ai_alsa_xrun(audio_in_t *ai);#endif
#if HAVE_OSS_AUDIOint ai_oss_set_samplerate(audio_in_t *ai);int ai_oss_set_channels(audio_in_t *ai);int ai_oss_init(audio_in_t *ai);#endif
#if HAVE_SNDIOint ai_sndio_setup(audio_in_t *ai);int ai_sndio_init(audio_in_t *ai);#endif
#endif /* MPLAYER_AUDIO_IN_H */