static int init(struct ao *ao) { pa_proplist *proplist = NULL; pa_format_info *format = NULL; struct priv *priv = ao->priv; char *sink = priv->cfg_sink && priv->cfg_sink[0] ? priv->cfg_sink : ao->device; if (pa_init_boilerplate(ao) < 0) return -1; pa_threaded_mainloop_lock(priv->mainloop); if (!(proplist = pa_proplist_new())) { MP_ERR(ao, "Failed to allocate proplist\n"); goto unlock_and_fail; } (void)pa_proplist_sets(proplist, PA_PROP_MEDIA_ICON_NAME, ao->client_name); if (!(format = pa_format_info_new())) goto unlock_and_fail; if (!set_format(ao, format)) { ao->channels = (struct mp_chmap) MP_CHMAP_INIT_STEREO; ao->samplerate = 48000; ao->format = AF_FORMAT_FLOAT; if (!set_format(ao, format)) { MP_ERR(ao, "Invalid audio format\n"); goto unlock_and_fail; } } if (!(priv->stream = pa_stream_new_extended(priv->context, "audio stream", &format, 1, proplist))) goto unlock_and_fail; pa_format_info_free(format); format = NULL; pa_proplist_free(proplist); proplist = NULL; pa_stream_set_state_callback(priv->stream, stream_state_cb, ao); pa_stream_set_write_callback(priv->stream, stream_request_cb, ao); pa_stream_set_latency_update_callback(priv->stream, stream_latency_update_cb, ao); int buf_size = af_fmt_seconds_to_bytes(ao->format, priv->cfg_buffer / 1000.0, ao->channels.num, ao->samplerate); pa_buffer_attr bufattr = { .maxlength = -1, .tlength = buf_size > 0 ? buf_size : (uint32_t)-1, .prebuf = -1, .minreq = -1, .fragsize = -1, }; int flags = PA_STREAM_NOT_MONOTONIC; if (!priv->cfg_latency_hacks) flags |= PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE; if (pa_stream_connect_playback(priv->stream, sink, &bufattr, flags, NULL, NULL) < 0) goto unlock_and_fail; /* Wait until the stream is ready */ while (1) { int state = pa_stream_get_state(priv->stream); if (state == PA_STREAM_READY) break; if (!PA_STREAM_IS_GOOD(state)) goto unlock_and_fail; pa_threaded_mainloop_wait(priv->mainloop); } if (pa_stream_is_suspended(priv->stream)) { MP_ERR(ao, "The stream is suspended. Bailing out.\n"); goto unlock_and_fail; } pa_threaded_mainloop_unlock(priv->mainloop); return 0; unlock_and_fail: pa_threaded_mainloop_unlock(priv->mainloop); if (format) pa_format_info_free(format); if (proplist) pa_proplist_free(proplist); uninit(ao); return -1; } static void cork(struct ao *ao, bool pause) { struct priv *priv = ao->priv; pa_threaded_mainloop_lock(priv->mainloop); priv->retval = 0; if (!waitop(priv, pa_stream_cork(priv->stream, pause, success_cb, ao)) || !priv->retval) GENERIC_ERR_MSG("pa_stream_cork() failed"); } // Play the specified data to the pulseaudio server static int play(struct ao *ao, void **data, int samples, int flags) { struct priv *priv = ao->priv; pa_threaded_mainloop_lock(priv->mainloop); if (pa_stream_write(priv->stream, data[0], samples * ao->sstride, NULL, 0, PA_SEEK_RELATIVE) < 0) { GENERIC_ERR_MSG("pa_stream_write() failed"); samples = -1; } if (flags & AOPLAY_FINAL_CHUNK) { // Force start in case the stream was too short for prebuf pa_operation *op = pa_stream_trigger(priv->stream, NULL, NULL); pa_operation_unref(op); } pa_threaded_mainloop_unlock(priv->mainloop); return samples; } // Reset the audio stream, i.e. flush the playback buffer on the server side static void reset(struct ao *ao) { // pa_stream_flush() works badly if not corked cork(ao, true); struct priv *priv = ao->priv; pa_threaded_mainloop_lock(priv->mainloop); priv->retval = 0; if (!waitop(priv, pa_stream_flush(priv->stream, success_cb, ao)) || !priv->retval) GENERIC_ERR_MSG("pa_stream_flush() failed"); cork(ao, false); }
/* This is called whenever the context status changes */ static void context_state_callback(pa_context *c, void *userdata) { fail_unless(c != NULL); switch (pa_context_get_state(c)) { case PA_CONTEXT_CONNECTING: case PA_CONTEXT_AUTHORIZING: case PA_CONTEXT_SETTING_NAME: break; case PA_CONTEXT_READY: { pa_stream_flags_t flags = PA_STREAM_AUTO_TIMING_UPDATE; pa_buffer_attr attr; static const pa_sample_spec ss = { .format = PA_SAMPLE_S16LE, .rate = 44100, .channels = 2 }; pa_zero(attr); attr.maxlength = (uint32_t) -1; attr.tlength = latency > 0 ? (uint32_t) pa_usec_to_bytes(latency, &ss) : (uint32_t) -1; attr.prebuf = (uint32_t) -1; attr.minreq = (uint32_t) -1; attr.fragsize = (uint32_t) -1; #ifdef INTERPOLATE flags |= PA_STREAM_INTERPOLATE_TIMING; #endif if (latency > 0) flags |= PA_STREAM_ADJUST_LATENCY; pa_log("Connection established"); stream = pa_stream_new(c, "interpol-test", &ss, NULL); fail_unless(stream != NULL); if (playback) { pa_assert_se(pa_stream_connect_playback(stream, NULL, &attr, flags, NULL, NULL) == 0); pa_stream_set_write_callback(stream, stream_write_cb, NULL); } else { pa_assert_se(pa_stream_connect_record(stream, NULL, &attr, flags) == 0); pa_stream_set_read_callback(stream, stream_read_cb, NULL); } pa_stream_set_latency_update_callback(stream, stream_latency_cb, NULL); break; } case PA_CONTEXT_TERMINATED: break; case PA_CONTEXT_FAILED: default: pa_log_error("Context error: %s", pa_strerror(pa_context_errno(c))); fail(); } } START_TEST (interpol_test) { pa_threaded_mainloop* m = NULL; int k; struct timeval start, last_info = { 0, 0 }; pa_usec_t old_t = 0, old_rtc = 0; #ifdef CORK bool corked = false; #endif /* Set up a new main loop */ m = pa_threaded_mainloop_new(); fail_unless(m != NULL); mainloop_api = pa_threaded_mainloop_get_api(m); fail_unless(mainloop_api != NULL); context = pa_context_new(mainloop_api, bname); fail_unless(context != NULL); pa_context_set_state_callback(context, context_state_callback, NULL); fail_unless(pa_context_connect(context, NULL, 0, NULL) >= 0); pa_gettimeofday(&start); fail_unless(pa_threaded_mainloop_start(m) >= 0); /* #ifdef CORK */ for (k = 0; k < 20000; k++) /* #else */ /* for (k = 0; k < 2000; k++) */ /* #endif */ { bool success = false, changed = false; pa_usec_t t, rtc, d; struct timeval now, tv; bool playing = false; pa_threaded_mainloop_lock(m); if (stream) { const pa_timing_info *info; if (pa_stream_get_time(stream, &t) >= 0 && pa_stream_get_latency(stream, &d, NULL) >= 0) success = true; if ((info = pa_stream_get_timing_info(stream))) { if (memcmp(&last_info, &info->timestamp, sizeof(struct timeval))) { changed = true; last_info = info->timestamp; } if (info->playing) playing = true; } } pa_threaded_mainloop_unlock(m); pa_gettimeofday(&now); if (success) { #ifdef CORK bool cork_now; #endif rtc = pa_timeval_diff(&now, &start); pa_log_info("%i\t%llu\t%llu\t%llu\t%llu\t%lli\t%u\t%u\t%llu\t%llu\n", k, (unsigned long long) rtc, (unsigned long long) t, (unsigned long long) (rtc-old_rtc), (unsigned long long) (t-old_t), (signed long long) rtc - (signed long long) t, changed, playing, (unsigned long long) latency, (unsigned long long) d); fflush(stdout); old_t = t; old_rtc = rtc; #ifdef CORK cork_now = (rtc / (2*PA_USEC_PER_SEC)) % 2 == 1; if (corked != cork_now) { pa_threaded_mainloop_lock(m); pa_operation_unref(pa_stream_cork(stream, cork_now, NULL, NULL)); pa_threaded_mainloop_unlock(m); pa_log(cork_now ? "Corking" : "Uncorking"); corked = cork_now; } #endif } /* Spin loop, ugly but normal usleep() is just too badly grained */ tv = now; while (pa_timeval_diff(pa_gettimeofday(&now), &tv) < 1000) pa_thread_yield(); } if (m) pa_threaded_mainloop_stop(m); if (stream) { pa_stream_disconnect(stream); pa_stream_unref(stream); } if (context) { pa_context_disconnect(context); pa_context_unref(context); } if (m) pa_threaded_mainloop_free(m); } END_TEST int main(int argc, char *argv[]) { int failed = 0; Suite *s; TCase *tc; SRunner *sr; if (!getenv("MAKE_CHECK")) pa_log_set_level(PA_LOG_DEBUG); bname = argv[0]; playback = argc <= 1 || !pa_streq(argv[1], "-r"); latency = (argc >= 2 && !pa_streq(argv[1], "-r")) ? atoi(argv[1]) : (argc >= 3 ? atoi(argv[2]) : 0); s = suite_create("Interpol"); tc = tcase_create("interpol"); tcase_add_test(tc, interpol_test); tcase_set_timeout(tc, 5 * 60); suite_add_tcase(s, tc); sr = srunner_create(s); srunner_run_all(sr, CK_NORMAL); failed = srunner_ntests_failed(sr); srunner_free(sr); return (failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE; }
static ALuint PulseProc(ALvoid *param) { ALCdevice *Device = param; pulse_data *data = Device->ExtraData; ALuint buffer_size; ALint update_size; size_t frame_size; ssize_t len; SetRTPriority(); pa_threaded_mainloop_lock(data->loop); frame_size = pa_frame_size(&data->spec); update_size = Device->UpdateSize * frame_size; /* Sanitize buffer metrics, in case we actually have less than what we * asked for. */ buffer_size = minu(update_size*Device->NumUpdates, data->attr.tlength); update_size = minu(update_size, buffer_size/2); do { len = pa_stream_writable_size(data->stream) - data->attr.tlength + buffer_size; if(len < update_size) { if(pa_stream_is_corked(data->stream) == 1) { pa_operation *o; o = pa_stream_cork(data->stream, 0, NULL, NULL); if(o) pa_operation_unref(o); } pa_threaded_mainloop_unlock(data->loop); Sleep(1); pa_threaded_mainloop_lock(data->loop); continue; } len -= len%update_size; while(len > 0) { size_t newlen = len; void *buf; pa_free_cb_t free_func = NULL; #if PA_CHECK_VERSION(0,9,16) if(!pa_stream_begin_write || pa_stream_begin_write(data->stream, &buf, &newlen) < 0) #endif { buf = pa_xmalloc(newlen); free_func = pa_xfree; } pa_threaded_mainloop_unlock(data->loop); aluMixData(Device, buf, newlen/frame_size); pa_threaded_mainloop_lock(data->loop); pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE); len -= newlen; } } while(!data->killNow && Device->Connected); pa_threaded_mainloop_unlock(data->loop); return 0; }
/** Resume the audio stream by uncorking it on the server */ static void audio_resume(void) { assert(stream && context && pa_stream_get_state(stream) == PA_STREAM_READY); wait_for_operation(pa_stream_cork(stream, 0, NULL, NULL)); }