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-rw-r--r--src/pacat.c169
1 files changed, 169 insertions, 0 deletions
diff --git a/src/pacat.c b/src/pacat.c
new file mode 100644
index 00000000..5f5a373b
--- /dev/null
+++ b/src/pacat.c
@@ -0,0 +1,169 @@
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "polyp.h"
+#include "mainloop.h"
+
+static struct pa_context *context = NULL;
+static struct pa_stream *stream = NULL;
+static struct pa_mainloop_api *mainloop_api = NULL;
+
+static void *buffer = NULL;
+static size_t buffer_length = 0, buffer_index = 0;
+
+static void* stdin_source = NULL;
+
+static void context_die_callback(struct pa_context *c, void *userdata) {
+ assert(c);
+ fprintf(stderr, "Connection to server shut down, exiting.\n");
+ mainloop_api->quit(mainloop_api, 1);
+}
+
+static void stream_die_callback(struct pa_stream *s, void *userdata) {
+ assert(s);
+ fprintf(stderr, "Stream deleted, exiting.\n");
+ mainloop_api->quit(mainloop_api, 1);
+}
+
+static void stream_write_callback(struct pa_stream *s, size_t length, void *userdata) {
+ size_t l;
+ assert(s && length);
+
+ mainloop_api->enable_io(mainloop_api, stdin_source, PA_STREAM_PLAYBACK);
+
+ if (!buffer)
+ return;
+
+ assert(buffer_length);
+
+ l = length;
+ if (l > buffer_length)
+ l = buffer_length;
+
+ pa_stream_write(s, buffer+buffer_index, l);
+ buffer_length -= l;
+ buffer_index += l;
+
+ if (!buffer_length) {
+ free(buffer);
+ buffer = NULL;
+ buffer_index = buffer_length = 0;
+ }
+}
+
+static void stream_complete_callback(struct pa_context*c, struct pa_stream *s, void *userdata) {
+ assert(c);
+
+ if (!s) {
+ fprintf(stderr, "Stream creation failed.\n");
+ mainloop_api->quit(mainloop_api, 1);
+ }
+
+ stream = s;
+ pa_stream_set_die_callback(stream, stream_die_callback, NULL);
+ pa_stream_set_write_callback(stream, stream_write_callback, NULL);
+}
+
+static void context_complete_callback(struct pa_context *c, int success, void *userdata) {
+ static const struct pa_sample_spec ss = {
+ .format = SAMPLE_S16NE,
+ .rate = 44100,
+ .channels = 2
+ };
+
+ assert(c && !stream);
+
+ if (!success) {
+ fprintf(stderr, "Connection failed\n");
+ goto fail;
+ }
+
+ if (pa_stream_new(c, PA_STREAM_PLAYBACK, NULL, "pacat", &ss, NULL, stream_complete_callback, NULL) < 0) {
+ fprintf(stderr, "pa_stream_new() failed.\n");
+ goto fail;
+ }
+
+ return;
+
+fail:
+ mainloop_api->quit(mainloop_api, 1);
+}
+
+static void stdin_callback(struct pa_mainloop_api*a, void *id, int fd, enum pa_mainloop_api_io_events events, void *userdata) {
+ size_t l;
+ ssize_t r;
+ assert(a == mainloop_api && id && fd == STDIN_FILENO && events == PA_MAINLOOP_API_IO_EVENT_INPUT);
+
+ if (buffer) {
+ mainloop_api->enable_io(mainloop_api, stdin_source, PA_MAINLOOP_API_IO_EVENT_NULL);
+ return;
+ }
+
+ if (!(l = pa_stream_writable_size(stream)))
+ l = 4096;
+ buffer = malloc(l);
+ assert(buffer);
+ if ((r = read(fd, buffer, l)) <= 0) {
+ if (r == 0)
+ mainloop_api->quit(mainloop_api, 0);
+ else {
+ fprintf(stderr, "read() failed: %s\n", strerror(errno));
+ mainloop_api->quit(mainloop_api, 1);
+ }
+
+ return;
+ }
+
+ buffer_length = r;
+ buffer_index = 0;
+}
+
+int main(int argc, char *argv[]) {
+ struct pa_mainloop* m;
+ int ret = 1;
+
+ if (!(m = pa_mainloop_new())) {
+ fprintf(stderr, "pa_mainloop_new() failed.\n");
+ goto quit;
+ }
+
+ mainloop_api = pa_mainloop_get_api(m);
+
+ if (!(stdin_source = mainloop_api->source_io(mainloop_api, STDIN_FILENO, PA_MAINLOOP_API_IO_EVENT_INPUT, stdin_callback, NULL))) {
+ fprintf(stderr, "source_io() failed.\n");
+ goto quit;
+ }
+
+ if (!(context = pa_context_new(mainloop_api, argv[0]))) {
+ fprintf(stderr, "pa_context_new() failed.\n");
+ goto quit;
+ }
+
+ if (pa_context_connect(context, NULL, context_complete_callback, NULL) < 0) {
+ fprintf(stderr, "pa_context_connext() failed.\n");
+ goto quit;
+ }
+
+ pa_context_set_die_callback(context, context_die_callback, NULL);
+
+ if (pa_mainloop_run(m, &ret) < 0) {
+ fprintf(stderr, "pa_mainloop_run() failed.\n");
+ goto quit;
+ }
+
+quit:
+ if (stream)
+ pa_stream_free(stream);
+ if (context)
+ pa_context_free(context);
+ if (m)
+ pa_mainloop_free(m);
+ if (buffer)
+ free(buffer);
+
+ return ret;
+}