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Diffstat (limited to 'gtk/soundout/jackout.c')
-rw-r--r--gtk/soundout/jackout.c127
1 files changed, 0 insertions, 127 deletions
diff --git a/gtk/soundout/jackout.c b/gtk/soundout/jackout.c
deleted file mode 100644
index 54e7f16..0000000
--- a/gtk/soundout/jackout.c
+++ /dev/null
@@ -1,127 +0,0 @@
-#include "jackout.h"
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <jack/jack.h>
-#include <soxr.h>
-
-typedef jack_default_audio_sample_t sample_t;
-
-enum {
- RFRAMES = 1024,
- JFRAMES = 2048,
-};
-
-struct jackout_state {
- struct sound_state ss;
- sound_callback cbfunc;
- void *userptr;
- jack_client_t *jc;
- jack_port_t *jp[2];
- soxr_t soxr;
- bool paused;
- int16_t rbuf[RFRAMES*2];
- float jbuf[JFRAMES*2];
-};
-
-static size_t soxr_cb(void *ptr, soxr_in_t *data, size_t nframes) {
- struct jackout_state *js = ptr;
- if (nframes > RFRAMES) nframes = RFRAMES;
- for (size_t i = 0; i < RFRAMES*2; i++) {
- js->rbuf[i] = 0;
- }
- js->cbfunc(js->userptr, js->rbuf, nframes);
- *data = js->rbuf;
- return nframes;
-}
-
-static int jack_cb(jack_nframes_t nframes, void *arg) {
- struct jackout_state *js = arg;
- sample_t *out[2];
- for (int i = 0; i < 2; i++) out[i] = jack_port_get_buffer(js->jp[i], nframes);
- jack_nframes_t outi = 0;
- while (nframes) {
- jack_nframes_t pframes = nframes < JFRAMES ? nframes : JFRAMES;
- pframes = soxr_output(js->soxr, js->jbuf, pframes);
- for (jack_nframes_t j = 0; j < pframes; j++) {
- out[0][outi] = js->jbuf[j*2+0];
- out[1][outi] = js->jbuf[j*2+1];
- outi++;
- }
- nframes -= pframes;
- }
- return 0;
-}
-
-static void jackout_pause(struct sound_state *ss, int pause, int flush) {
- struct jackout_state *js = (struct jackout_state *)ss;
- // TODO
- if (js->paused && !pause) {
- if (flush) {
- soxr_clear(js->soxr);
- soxr_set_input_fn(js->soxr, soxr_cb, js, RFRAMES);
- }
- jack_activate(js->jc);
- jack_connect(js->jc, jack_port_name(js->jp[0]), "system:playback_1");
- jack_connect(js->jc, jack_port_name(js->jp[1]), "system:playback_2");
- } else if (!js->paused && pause) {
- jack_deactivate(js->jc);
- }
- js->paused = pause;
-}
-
-static void jackout_free(struct sound_state *ss) {
- struct jackout_state *js = (struct jackout_state *)ss;
- if (js) {
- if (js->jc) {
- for (int i = 0; i < 2; i++) {
- if (js->jp[i]) jack_port_unregister(js->jc, js->jp[i]);
- }
- jack_client_close(js->jc);
- }
- if (js->soxr) soxr_delete(js->soxr);
- free(js);
- }
-}
-
-struct sound_state *jackout_init(
- const char *clientname, unsigned srate,
- sound_callback cbfunc, void *userptr) {
- struct jackout_state *js = malloc(sizeof(*js));
- if (!js) goto err;
- *js = (struct jackout_state){
- .ss = {
- .pause = jackout_pause,
- .free = jackout_free,
- .apiname = "JACK Audio",
- },
- .cbfunc = cbfunc,
- .userptr = userptr,
- .paused = true,
- };
- js->jc = jack_client_open(clientname, 0, 0);
- if (!js->jc) goto err;
- for (int i = 0; i < 2; i++) {
- js->jp[i] = jack_port_register(
- js->jc, i ? "right" : "left", JACK_DEFAULT_AUDIO_TYPE,
- JackPortIsOutput | JackPortIsTerminal, 0);
- if (!js->jp[i]) goto err;
- }
- soxr_io_spec_t iospec = {
- .itype = SOXR_INT16_I,
- .otype = SOXR_FLOAT32_I,
- .scale = 1.0,
- };
- js->soxr = soxr_create(
- srate, jack_get_sample_rate(js->jc),
- 2, 0, &iospec, 0, 0
- );
- if (!js->soxr) goto err;
- soxr_set_input_fn(js->soxr, soxr_cb, js, RFRAMES);
- if (jack_set_process_callback(js->jc, jack_cb, js)) goto err;
-
- return &js->ss;
-err:
- jackout_free(&js->ss);
- return 0;
-}