diff options
Diffstat (limited to 'meta-pipewire')
4 files changed, 518 insertions, 0 deletions
diff --git a/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa/0001-utils-add-a-gstreamer-helper-application-for-interco.patch b/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa/0001-utils-add-a-gstreamer-helper-application-for-interco.patch new file mode 100644 index 00000000..37c03218 --- /dev/null +++ b/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa/0001-utils-add-a-gstreamer-helper-application-for-interco.patch @@ -0,0 +1,464 @@ +From 33555a493af67f3acc2129764a1b093aec6254d8 Mon Sep 17 00:00:00 2001 +From: George Kiagiadakis <george.kiagiadakis@collabora.com> +Date: Fri, 4 Oct 2019 20:51:24 +0300 +Subject: [PATCH] utils: add a gstreamer helper application for interconnection + with pipewire + +Unfortunately, the bluez-alsa PCM plugin does not work correctly +when it is used through pipewire (or gstreamer, or anywhere really...). + +Thanfully, the bluez-alsa PCM plugin is only a simple client that +reads/writes on a file descriptor that was opened by bluealsa. +This allows us to use bluealsa without the PCM plugin, just like it +is done in the aplay.c util. + +This one uses GStreamer to implement the plumbing between pipewire +and the file descriptor. On the reading side we are also doing some +tricks to ensure a smooth stream, which is not the case for the +stream that is coming out of bluealsa. + +This helper is implemented as a patch to bluez-alsa so that it can +use its internal private API. In the future this needs some re-thinking. + +Upstream-Status: Inappropriate +--- + configure.ac | 7 + + utils/Makefile.am | 20 +++ + utils/gst-helper.c | 379 +++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 406 insertions(+) + create mode 100644 utils/gst-helper.c + +diff --git a/configure.ac b/configure.ac +index 4825afa..9125871 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -141,6 +141,13 @@ AM_COND_IF([ENABLE_HCITOP], [ + PKG_CHECK_MODULES([NCURSES], [ncurses]) + ]) + ++AC_ARG_ENABLE([gsthelper], ++ [AS_HELP_STRING([--enable-gsthelper], [enable building of gsthelper tool])]) ++AM_CONDITIONAL([ENABLE_GSTHELPER], [test "x$enable_gsthelper" = "xyes"]) ++AM_COND_IF([ENABLE_GSTHELPER], [ ++ PKG_CHECK_MODULES([GST], [gstreamer-1.0 glib-2.0]) ++]) ++ + AC_ARG_ENABLE([test], + [AS_HELP_STRING([--enable-test], [enable unit test])]) + AM_CONDITIONAL([ENABLE_TEST], [test "x$enable_test" = "xyes"]) +diff --git a/utils/Makefile.am b/utils/Makefile.am +index 9057f2c..9790474 100644 +--- a/utils/Makefile.am ++++ b/utils/Makefile.am +@@ -47,3 +47,23 @@ hcitop_LDADD = \ + @LIBBSD_LIBS@ \ + @NCURSES_LIBS@ + endif ++ ++if ENABLE_GSTHELPER ++bin_PROGRAMS += bluealsa-gst-helper ++bluealsa_gst_helper_SOURCES = \ ++ ../src/shared/dbus-client.c \ ++ ../src/shared/ffb.c \ ++ ../src/shared/log.c \ ++ gst-helper.c ++bluealsa_gst_helper_CFLAGS = \ ++ -I$(top_srcdir)/src \ ++ @ALSA_CFLAGS@ \ ++ @BLUEZ_CFLAGS@ \ ++ @DBUS1_CFLAGS@ \ ++ @GST_CFLAGS@ ++bluealsa_gst_helper_LDADD = \ ++ @ALSA_LIBS@ \ ++ @BLUEZ_LIBS@ \ ++ @DBUS1_LIBS@ \ ++ @GST_LIBS@ ++endif +diff --git a/utils/gst-helper.c b/utils/gst-helper.c +new file mode 100644 +index 0000000..1b021ee +--- /dev/null ++++ b/utils/gst-helper.c +@@ -0,0 +1,379 @@ ++/* Bluez-Alsa PipeWire integration GStreamer helper ++ * ++ * Copyright © 2016-2019 Arkadiusz Bokowy ++ * Copyright © 2019 Collabora Ltd. ++ * @author George Kiagiadakis <george.kiagiadakis@collabora.com> ++ * ++ * SPDX-License-Identifier: MIT ++ */ ++ ++#if HAVE_CONFIG_H ++# include <config.h> ++#endif ++ ++#include <errno.h> ++#include <getopt.h> ++#include <poll.h> ++#include <pthread.h> ++#include <signal.h> ++#include <stdbool.h> ++#include <stdint.h> ++#include <stdio.h> ++#include <stdlib.h> ++#include <string.h> ++#include <unistd.h> ++ ++#include <bluetooth/bluetooth.h> ++#include <dbus/dbus.h> ++#include <gst/gst.h> ++ ++#include "shared/dbus-client.h" ++#include "shared/defs.h" ++#include "shared/ffb.h" ++#include "shared/log.h" ++ ++struct worker { ++ /* used BlueALSA PCM device */ ++ struct ba_pcm ba_pcm; ++ /* file descriptor of PCM FIFO */ ++ int ba_pcm_fd; ++ /* file descriptor of PCM control */ ++ int ba_pcm_ctrl_fd; ++ /* the gstreamer pipelines (sink & source) */ ++ GstElement *pipeline[2]; ++}; ++ ++static struct ba_dbus_ctx dbus_ctx; ++static GHashTable *workers; ++static bool main_loop_on = true; ++ ++static void ++main_loop_stop(int sig) ++{ ++ /* Call to this handler restores the default action, so on the ++ * second call the program will be forcefully terminated. */ ++ ++ struct sigaction sigact = { .sa_handler = SIG_DFL }; ++ sigaction(sig, &sigact, NULL); ++ ++ main_loop_on = false; ++} ++ ++static int ++worker_start_pipeline(struct worker *w, int id, int mode, int profile) ++{ ++ GError *gerr = NULL; ++ DBusError err = DBUS_ERROR_INIT; ++ ++ if (w->pipeline[id]) ++ return 0; ++ ++ if (!bluealsa_dbus_pcm_open(&dbus_ctx, w->ba_pcm.pcm_path, mode, ++ &w->ba_pcm_fd, &w->ba_pcm_ctrl_fd, &err)) { ++ error("Couldn't open PCM: %s", err.message); ++ dbus_error_free(&err); ++ goto fail; ++ } ++ ++ if (mode == BA_PCM_FLAG_SINK) { ++ debug("sink start"); ++ w->pipeline[id] = gst_parse_launch( ++ /* add a silent live source to ensure a perfect live stream on the ++ output, even when the bt device is not sending or has gaps; ++ this also effectively changes the clock to be the system clock, ++ which is the same clock used by bluez-alsa on the sending side */ ++ "audiotestsrc is-live=true wave=silence ! capsfilter name=capsf " ++ "! audiomixer name=m " ++ /* mix the input from bluez-alsa using fdsrc; rawaudioparse ++ is necessary to convert bytes to time and align the buffers */ ++ "fdsrc name=fdelem do-timestamp=true ! capsfilter name=capsf2 " ++ "! rawaudioparse use-sink-caps=true ! m. " ++ /* take the mixer output, convert and push to pipewire */ ++ "m.src ! capsfilter name=capsf3 ! audioconvert ! audioresample " ++ "! audio/x-raw,format=F32LE,rate=48000 ! pwaudiosink name=pwelem", ++ &gerr); ++ } else if (mode == BA_PCM_FLAG_SOURCE && profile == BA_PCM_FLAG_PROFILE_SCO) { ++ debug("source start"); ++ w->pipeline[id] = gst_parse_launch( ++ /* read from pipewire and put the buffers on a leaky queue, which ++ will essentially allow pwaudiosrc to continue working while ++ the fdsink is blocked (when there is no phone call in progress). ++ 9600 bytes = 50ms @ F32LE/1ch/48000 ++ */ ++ "pwaudiosrc name=pwelem ! audio/x-raw,format=F32LE,rate=48000 " ++ "! queue leaky=downstream max-size-time=0 max-size-buffers=0 max-size-bytes=9600 " ++ "! audioconvert ! audioresample ! capsfilter name=capsf " ++ "! fdsink name=fdelem", &gerr); ++ } ++ ++ if (gerr) { ++ error("Failed to start pipeline: %s", gerr->message); ++ g_error_free(gerr); ++ goto fail; ++ } ++ ++ if (w->pipeline[id]) { ++ g_autofree gchar *capsstr = NULL; ++ g_autoptr (GstElement) fdelem = gst_bin_get_by_name(GST_BIN(w->pipeline[id]), "fdelem"); ++ g_autoptr (GstElement) pwelem = gst_bin_get_by_name(GST_BIN(w->pipeline[id]), "pwelem"); ++ g_autoptr (GstElement) capsf = gst_bin_get_by_name(GST_BIN(w->pipeline[id]), "capsf"); ++ g_autoptr (GstElement) capsf2 = gst_bin_get_by_name(GST_BIN(w->pipeline[id]), "capsf2"); ++ g_autoptr (GstElement) capsf3 = gst_bin_get_by_name(GST_BIN(w->pipeline[id]), "capsf3"); ++ g_autoptr (GstCaps) caps = gst_caps_new_simple("audio/x-raw", ++ "format", G_TYPE_STRING, "S16LE", ++ "layout", G_TYPE_STRING, "interleaved", ++ "channels", G_TYPE_INT, w->ba_pcm.channels, ++ "rate", G_TYPE_INT, w->ba_pcm.sampling, ++ NULL); ++ g_autoptr (GstStructure) stream_props = gst_structure_new("props", ++ "media.role", G_TYPE_STRING, "Communication", ++ "wireplumber.keep-linked", G_TYPE_STRING, "1", ++ NULL); ++ ++ g_object_set(capsf, "caps", caps, NULL); ++ if (capsf2) ++ g_object_set(capsf2, "caps", caps, NULL); ++ if (capsf3) ++ g_object_set(capsf3, "caps", caps, NULL); ++ ++ capsstr = gst_caps_to_string (caps); ++ debug(" caps: %s", capsstr); ++ ++ g_object_set(fdelem, "fd", w->ba_pcm_fd, NULL); ++ g_object_set(pwelem, "stream-properties", stream_props, NULL); ++ ++ gst_element_set_state(w->pipeline[id], GST_STATE_PLAYING); ++ } ++ ++ return 0; ++fail: ++ g_clear_object(&w->pipeline[id]); ++ return -1; ++} ++ ++static int ++worker_start(struct worker *w) ++{ ++ int mode = w->ba_pcm.flags & (BA_PCM_FLAG_SOURCE | BA_PCM_FLAG_SINK); ++ int profile = w->ba_pcm.flags & (BA_PCM_FLAG_PROFILE_A2DP | BA_PCM_FLAG_PROFILE_SCO); ++ /* human-readable BT address */ ++ char addr[18]; ++ ++ g_return_val_if_fail (profile != 0 && profile != (BA_PCM_FLAG_PROFILE_A2DP | BA_PCM_FLAG_PROFILE_SCO), -1); ++ ++ ba2str(&w->ba_pcm.addr, addr); ++ debug("%p: worker start addr:%s, mode:0x%x, profile:0x%x", w, addr, mode, profile); ++ ++ if (mode & BA_PCM_FLAG_SINK) ++ worker_start_pipeline(w, 0, BA_PCM_FLAG_SINK, profile); ++ if (mode & BA_PCM_FLAG_SOURCE) ++ worker_start_pipeline(w, 1, BA_PCM_FLAG_SOURCE, profile); ++} ++ ++static int ++worker_stop(struct worker *w) ++{ ++ debug("stop worker %p", w); ++ if (w->pipeline[0]) { ++ gst_element_set_state(w->pipeline[0], GST_STATE_NULL); ++ g_clear_object(&w->pipeline[0]); ++ } ++ if (w->pipeline[1]) { ++ gst_element_set_state(w->pipeline[1], GST_STATE_NULL); ++ g_clear_object(&w->pipeline[1]); ++ } ++ if (w->ba_pcm_fd != -1) { ++ close(w->ba_pcm_fd); ++ w->ba_pcm_fd = -1; ++ } ++ if (w->ba_pcm_ctrl_fd != -1) { ++ close(w->ba_pcm_ctrl_fd); ++ w->ba_pcm_ctrl_fd = -1; ++ } ++ return 0; ++} ++ ++static int ++supervise_pcm_worker(struct worker *worker) ++{ ++ if (worker == NULL) ++ return -1; ++ ++ /* no mode? */ ++ if (worker->ba_pcm.flags & (BA_PCM_FLAG_SOURCE | BA_PCM_FLAG_SINK) == 0) ++ goto stop; ++ ++ /* no profile? */ ++ if (worker->ba_pcm.flags & (BA_PCM_FLAG_PROFILE_A2DP | BA_PCM_FLAG_PROFILE_SCO) == 0) ++ goto stop; ++ ++ /* check whether SCO has selected codec */ ++ if (worker->ba_pcm.flags & BA_PCM_FLAG_PROFILE_SCO && ++ worker->ba_pcm.codec == 0) { ++ debug("Skipping SCO with codec not selected"); ++ goto stop; ++ } ++ ++start: ++ return worker_start(worker); ++stop: ++ return worker_stop(worker); ++} ++ ++static void ++worker_new(struct ba_pcm *pcm) ++{ ++ struct worker *w = g_slice_new0 (struct worker); ++ memcpy(&w->ba_pcm, pcm, sizeof(struct ba_pcm)); ++ w->ba_pcm_fd = -1; ++ w->ba_pcm_ctrl_fd = -1; ++ g_hash_table_insert(workers, w->ba_pcm.pcm_path, w); ++ supervise_pcm_worker(w); ++} ++ ++static DBusHandlerResult ++dbus_signal_handler(DBusConnection *conn, DBusMessage *message, void *data) ++{ ++ (void)conn; ++ (void)data; ++ ++ const char *path = dbus_message_get_path(message); ++ const char *interface = dbus_message_get_interface(message); ++ const char *signal = dbus_message_get_member(message); ++ ++ DBusMessageIter iter; ++ struct worker *worker; ++ ++ if (strcmp(interface, BLUEALSA_INTERFACE_MANAGER) == 0) { ++ ++ if (strcmp(signal, "PCMAdded") == 0) { ++ struct ba_pcm pcm; ++ if (!dbus_message_iter_init(message, &iter) || ++ !bluealsa_dbus_message_iter_get_pcm(&iter, NULL, &pcm)) { ++ error("Couldn't add new PCM: %s", "Invalid signal signature"); ++ goto fail; ++ } ++ worker_new(&pcm); ++ return DBUS_HANDLER_RESULT_HANDLED; ++ } ++ ++ if (strcmp(signal, "PCMRemoved") == 0) { ++ if (!dbus_message_iter_init(message, &iter) || ++ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_OBJECT_PATH) { ++ error("Couldn't remove PCM: %s", "Invalid signal signature"); ++ goto fail; ++ } ++ dbus_message_iter_get_basic(&iter, &path); ++ g_hash_table_remove(workers, path); ++ return DBUS_HANDLER_RESULT_HANDLED; ++ } ++ ++ } ++ ++ if (strcmp(interface, DBUS_INTERFACE_PROPERTIES) == 0) { ++ worker = g_hash_table_lookup(workers, path); ++ if (!worker) ++ goto fail; ++ if (!dbus_message_iter_init(message, &iter) || ++ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) { ++ error("Couldn't update PCM: %s", "Invalid signal signature"); ++ goto fail; ++ } ++ dbus_message_iter_get_basic(&iter, &interface); ++ dbus_message_iter_next(&iter); ++ if (!bluealsa_dbus_message_iter_get_pcm_props(&iter, NULL, &worker->ba_pcm)) ++ goto fail; ++ supervise_pcm_worker(worker); ++ return DBUS_HANDLER_RESULT_HANDLED; ++ } ++ ++fail: ++ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; ++} ++ ++static void ++destroy_worker(void *worker) ++{ ++ struct worker *w = worker; ++ worker_stop(w); ++ g_slice_free(struct worker, w); ++} ++ ++int ++main(int argc, char *argv[]) ++{ ++ int ret = EXIT_SUCCESS; ++ ++ log_open(argv[0], false, false); ++ gst_init(&argc, &argv); ++ dbus_threads_init_default(); ++ ++ DBusError err = DBUS_ERROR_INIT; ++ if (!bluealsa_dbus_connection_ctx_init(&dbus_ctx, BLUEALSA_SERVICE, &err)) { ++ error("Couldn't initialize D-Bus context: %s", err.message); ++ return EXIT_FAILURE; ++ } ++ ++ bluealsa_dbus_connection_signal_match_add(&dbus_ctx, ++ BLUEALSA_SERVICE, NULL, BLUEALSA_INTERFACE_MANAGER, "PCMAdded", NULL); ++ bluealsa_dbus_connection_signal_match_add(&dbus_ctx, ++ BLUEALSA_SERVICE, NULL, BLUEALSA_INTERFACE_MANAGER, "PCMRemoved", NULL); ++ bluealsa_dbus_connection_signal_match_add(&dbus_ctx, ++ BLUEALSA_SERVICE, NULL, DBUS_INTERFACE_PROPERTIES, "PropertiesChanged", ++ "arg0='"BLUEALSA_INTERFACE_PCM"'"); ++ ++ if (!dbus_connection_add_filter(dbus_ctx.conn, dbus_signal_handler, NULL, NULL)) { ++ error("Couldn't add D-Bus filter: %s", err.message); ++ return EXIT_FAILURE; ++ } ++ ++ workers = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, destroy_worker); ++ ++ { ++ struct ba_pcm *pcms = NULL; ++ size_t pcms_count = 0, i; ++ ++ if (!bluealsa_dbus_get_pcms(&dbus_ctx, &pcms, &pcms_count, &err)) ++ warn("Couldn't get BlueALSA PCM list: %s", err.message); ++ ++ for (i = 0; i < pcms_count; i++) { ++ worker_new(&pcms[i]); ++ } ++ ++ free(pcms); ++ } ++ ++ struct sigaction sigact = { .sa_handler = main_loop_stop }; ++ sigaction(SIGTERM, &sigact, NULL); ++ sigaction(SIGINT, &sigact, NULL); ++ ++ /* Ignore SIGPIPE, which may be received when writing to the bluealsa ++ socket when it is closed on the remote end */ ++ signal(SIGPIPE, SIG_IGN); ++ ++ debug("Starting main loop"); ++ while (main_loop_on) { ++ ++ struct pollfd pfds[10]; ++ nfds_t pfds_len = ARRAYSIZE(pfds); ++ ++ if (!bluealsa_dbus_connection_poll_fds(&dbus_ctx, pfds, &pfds_len)) { ++ error("Couldn't get D-Bus connection file descriptors"); ++ ret = EXIT_FAILURE; ++ goto out; ++ } ++ ++ if (poll(pfds, pfds_len, -1) == -1 && ++ errno == EINTR) ++ continue; ++ ++ if (bluealsa_dbus_connection_poll_dispatch(&dbus_ctx, pfds, pfds_len)) ++ while (dbus_connection_dispatch(dbus_ctx.conn) == DBUS_DISPATCH_DATA_REMAINS) ++ continue; ++ ++ } ++ ++out: ++ g_hash_table_unref(workers); ++ return ret; ++} +-- +2.23.0 + diff --git a/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa/bluealsa-gst-helper@.service b/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa/bluealsa-gst-helper@.service new file mode 100644 index 00000000..495ab622 --- /dev/null +++ b/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa/bluealsa-gst-helper@.service @@ -0,0 +1,18 @@ +[Unit] +Description=Bluetooth audio helper for user %i +Requires=pipewire@%i.socket bluez-alsa.service +After=pipewire@%i.socket bluez-alsa.service + +[Service] +Type=simple +Restart=on-failure +ExecStart=/usr/bin/bluealsa-gst-helper + +Environment=XDG_RUNTIME_DIR=/run/user/%i +Environment=DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/%i/bus + +User=%i +Slice=user-%i.slice +SupplementaryGroups=audio +UMask=0077 +CapabilityBoundingSet= diff --git a/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa_git.bbappend b/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa_git.bbappend new file mode 100644 index 00000000..2f9699a8 --- /dev/null +++ b/meta-pipewire/recipes-connectivity/bluez-alsa/bluez-alsa_git.bbappend @@ -0,0 +1,35 @@ +FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" + +SRC_URI += "\ + file://0001-utils-add-a-gstreamer-helper-application-for-interco.patch \ + file://bluealsa-gst-helper@.service \ + " + +PACKAGECONFIG += "gsthelper" +PACKAGECONFIG[gsthelper] = "--enable-gsthelper, --disable-gsthelper, gstreamer1.0" + +do_install_append() { + if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then + # install the service file + mkdir -p ${D}${systemd_system_unitdir}/ + install -m 0644 ${WORKDIR}/bluealsa-gst-helper@.service ${D}${systemd_system_unitdir}/bluealsa-gst-helper@.service + + # enable the helper to start together with afm-user-session + mkdir -p ${D}${systemd_system_unitdir}/afm-user-session@.target.wants + ln -sf ../bluealsa-gst-helper@.service ${D}${systemd_system_unitdir}/afm-user-session@.target.wants/bluealsa-gst-helper@.service + fi +} + +PACKAGES =+ "${PN}-pipewire" + +FILES_${PN}-pipewire = "\ + ${bindir}/bluealsa-gst-helper \ + ${systemd_system_unitdir}/bluealsa-gst-helper@.service \ + ${systemd_system_unitdir}/afm-user-session@.target.wants/bluealsa-gst-helper@.service \ + " +RDEPENDS_${PN}-pipewire += "\ + bluez-alsa \ + pipewire \ + gstreamer1.0-plugins-base \ + gstreamer1.0-pipewire \ + " diff --git a/meta-pipewire/recipes-core/packagegroups/packagegroup-pipewire.bb b/meta-pipewire/recipes-core/packagegroups/packagegroup-pipewire.bb index 470310ad..4020f1e2 100644 --- a/meta-pipewire/recipes-core/packagegroups/packagegroup-pipewire.bb +++ b/meta-pipewire/recipes-core/packagegroups/packagegroup-pipewire.bb @@ -13,4 +13,5 @@ RDEPENDS_${PN} += "\ pipewire \ pipewire-alsa \ gstreamer1.0-pipewire \ + bluez-alsa-pipewire \ " |