static gpointer
delayed_control (gpointer data)
{
GstPoll *set = data;
GstPollFD fd = GST_POLL_FD_INIT;
fd.fd = 1;
THREAD_START ();
g_usleep (500000);
gst_poll_add_fd (set, &fd);
gst_poll_fd_ctl_write (set, &fd, TRUE);
gst_poll_restart (set);
THREAD_SYNCHRONIZE ();
g_usleep (500000);
gst_poll_add_fd (set, &fd);
gst_poll_fd_ctl_write (set, &fd, TRUE);
gst_poll_restart (set);
return NULL;
}
static gboolean
gst_plugin_loader_try_helper (GstPluginLoader * loader, gchar * location)
{
char *argv[] = { location, (char *) "-l", NULL };
GST_LOG ("Trying to spawn gst-plugin-scanner helper at %s", location);
if (!g_spawn_async_with_pipes (NULL, argv, NULL,
G_SPAWN_DO_NOT_REAP_CHILD /* | G_SPAWN_STDERR_TO_DEV_NULL */ ,
NULL, NULL, &loader->child_pid, &loader->fd_w.fd, &loader->fd_r.fd,
NULL, NULL))
return FALSE;
gst_poll_add_fd (loader->fdset, &loader->fd_w);
gst_poll_add_fd (loader->fdset, &loader->fd_r);
gst_poll_fd_ctl_read (loader->fdset, &loader->fd_r, TRUE);
loader->tx_buf_write = loader->tx_buf_read = 0;
put_packet (loader, PACKET_VERSION, 0, NULL, 0);
if (!plugin_loader_sync_with_child (loader))
return FALSE;
loader->child_running = TRUE;
return TRUE;
}
gboolean
_gst_plugin_loader_client_run (void)
{
GstPluginLoader *l;
l = plugin_loader_new (NULL);
if (l == NULL)
return FALSE;
/* On entry, the inward pipe is STDIN, and outward is STDOUT.
* Dup those somewhere better so that plugins printing things
* won't interfere with anything */
#ifndef G_OS_WIN32
{
int dup_fd;
dup_fd = dup (0); /* STDIN */
if (dup_fd == -1) {
GST_ERROR ("Failed to start. Could no dup STDIN, errno %d", errno);
return FALSE;
}
l->fd_r.fd = dup_fd;
close (0);
dup_fd = dup (1); /* STDOUT */
if (dup_fd == -1) {
GST_ERROR ("Failed to start. Could no dup STDOUT, errno %d", errno);
return FALSE;
}
l->fd_w.fd = dup_fd;
close (1);
/* Dup stderr down to stdout so things that plugins print are visible,
* but don't care if it fails */
dup2 (2, 1);
}
#else
/* FIXME: Use DuplicateHandle and friends on win32 */
l->fd_w.fd = 1; /* STDOUT */
l->fd_r.fd = 0; /* STDIN */
#endif
gst_poll_add_fd (l->fdset, &l->fd_w);
gst_poll_add_fd (l->fdset, &l->fd_r);
gst_poll_fd_ctl_read (l->fdset, &l->fd_r, TRUE);
l->is_child = TRUE;
GST_DEBUG ("Plugin scanner child running. Waiting for instructions");
/* Loop, listening for incoming packets on the fd and writing responses */
while (!l->rx_done && exchange_packets (l));
plugin_loader_free (l);
return TRUE;
}
static gpointer
gst_wl_display_thread_run (gpointer data)
{
GstWlDisplay *self = data;
GstPollFD pollfd = GST_POLL_FD_INIT;
pollfd.fd = wl_display_get_fd (self->display);
gst_poll_add_fd (self->wl_fd_poll, &pollfd);
gst_poll_fd_ctl_read (self->wl_fd_poll, &pollfd, TRUE);
/* main loop */
while (1) {
while (wl_display_prepare_read_queue (self->display, self->queue) != 0)
wl_display_dispatch_queue_pending (self->display, self->queue);
wl_display_flush (self->display);
if (gst_poll_wait (self->wl_fd_poll, GST_CLOCK_TIME_NONE) < 0) {
gboolean normal = (errno == EBUSY);
wl_display_cancel_read (self->display);
if (normal)
break;
else
goto error;
} else {
wl_display_read_events (self->display);
wl_display_dispatch_queue_pending (self->display, self->queue);
}
}
return NULL;
error:
GST_ERROR ("Error communicating with the wayland server");
return NULL;
}
static void
gst_fd_src_update_fd (GstFdSrc * src, guint64 size)
{
struct stat stat_results;
GST_DEBUG_OBJECT (src, "fdset %p, old_fd %d, new_fd %d", src->fdset, src->fd,
src->new_fd);
/* we need to always update the fdset since it may not have existed when
* gst_fd_src_update_fd () was called earlier */
if (src->fdset != NULL) {
GstPollFD fd = GST_POLL_FD_INIT;
if (src->fd >= 0) {
fd.fd = src->fd;
/* this will log a harmless warning, if it was never added */
gst_poll_remove_fd (src->fdset, &fd);
}
fd.fd = src->new_fd;
gst_poll_add_fd (src->fdset, &fd);
gst_poll_fd_ctl_read (src->fdset, &fd, TRUE);
}
if (src->fd != src->new_fd) {
GST_INFO_OBJECT (src, "Updating to fd %d", src->new_fd);
src->fd = src->new_fd;
GST_INFO_OBJECT (src, "Setting size to fd %" G_GUINT64_FORMAT, size);
src->size = size;
g_free (src->uri);
src->uri = g_strdup_printf ("fd://%d", src->fd);
if (fstat (src->fd, &stat_results) < 0)
goto not_seekable;
if (!S_ISREG (stat_results.st_mode))
goto not_seekable;
/* Try a seek of 0 bytes offset to check for seekability */
if (lseek (src->fd, 0, SEEK_CUR) < 0)
goto not_seekable;
GST_INFO_OBJECT (src, "marking fd %d as seekable", src->fd);
src->seekable_fd = TRUE;
gst_base_src_set_dynamic_size (GST_BASE_SRC (src), TRUE);
}
return;
not_seekable:
{
GST_INFO_OBJECT (src, "marking fd %d as NOT seekable", src->fd);
src->seekable_fd = FALSE;
gst_base_src_set_dynamic_size (GST_BASE_SRC (src), FALSE);
}
}
static FsMsnPollFD *
add_pollfd_locked (FsMsnConnection *self, int fd, PollFdCallback callback,
gboolean read, gboolean write, gboolean server)
{
FsMsnPollFD *pollfd = g_slice_new0 (FsMsnPollFD);
gst_poll_fd_init (&pollfd->pollfd);
pollfd->pollfd.fd = fd;
pollfd->server = server;
pollfd->want_read = read;
pollfd->want_write = write;
pollfd->status = FS_MSN_STATUS_AUTH;
gst_poll_add_fd (self->poll, &pollfd->pollfd);
gst_poll_fd_ctl_read (self->poll, &pollfd->pollfd, read);
gst_poll_fd_ctl_write (self->poll, &pollfd->pollfd, write);
pollfd->callback = callback;
GST_DEBUG ("ADD_POLLFD %p (%p) - error %d, close %d, read %d-%d, write %d-%d",
self->pollfds, pollfd,
gst_poll_fd_has_error (self->poll, &pollfd->pollfd),
gst_poll_fd_has_closed (self->poll, &pollfd->pollfd),
pollfd->want_read,
gst_poll_fd_can_read (self->poll, &pollfd->pollfd),
pollfd->want_write,
gst_poll_fd_can_write (self->poll, &pollfd->pollfd));
g_ptr_array_add (self->pollfds, pollfd);
gst_poll_restart (self->poll);
return pollfd;
}
static gboolean
gst_fd_sink_start (GstBaseSink * basesink)
{
GstFdSink *fdsink;
GstPollFD fd = GST_POLL_FD_INIT;
fdsink = GST_FD_SINK (basesink);
if (!gst_fd_sink_check_fd (fdsink, fdsink->fd, NULL))
return FALSE;
if ((fdsink->fdset = gst_poll_new (TRUE)) == NULL)
goto socket_pair;
fd.fd = fdsink->fd;
gst_poll_add_fd (fdsink->fdset, &fd);
gst_poll_fd_ctl_write (fdsink->fdset, &fd, TRUE);
fdsink->bytes_written = 0;
fdsink->current_pos = 0;
fdsink->seekable = gst_fd_sink_do_seek (fdsink, 0);
GST_INFO_OBJECT (fdsink, "seeking supported: %d", fdsink->seekable);
return TRUE;
/* ERRORS */
socket_pair:
{
GST_ELEMENT_ERROR (fdsink, RESOURCE, OPEN_READ_WRITE, (NULL),
GST_ERROR_SYSTEM);
return FALSE;
}
}
static gboolean
gst_fd_sink_update_fd (GstFdSink * fdsink, int new_fd)
{
if (new_fd < 0)
return FALSE;
if (!gst_fd_sink_check_fd (fdsink, new_fd))
goto invalid;
/* assign the fd */
GST_OBJECT_LOCK (fdsink);
if (fdsink->fdset) {
GstPollFD fd = GST_POLL_FD_INIT;
fd.fd = fdsink->fd;
gst_poll_remove_fd (fdsink->fdset, &fd);
fd.fd = new_fd;
gst_poll_add_fd (fdsink->fdset, &fd);
gst_poll_fd_ctl_write (fdsink->fdset, &fd, TRUE);
}
fdsink->fd = new_fd;
g_free (fdsink->uri);
fdsink->uri = g_strdup_printf ("fd://%d", fdsink->fd);
GST_OBJECT_UNLOCK (fdsink);
return TRUE;
invalid:
{
return FALSE;
}
}
static gboolean
gst_shm_sink_start (GstBaseSink * bsink)
{
GstShmSink *self = GST_SHM_SINK (bsink);
GError *err = NULL;
self->stop = FALSE;
if (!self->socket_path) {
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
("Could not open socket."), (NULL));
return FALSE;
}
GST_DEBUG_OBJECT (self, "Creating new socket at %s"
" with shared memory of %d bytes", self->socket_path, self->size);
self->pipe = sp_writer_create (self->socket_path, self->size, self->perms);
if (!self->pipe) {
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
("Could not open socket."), (NULL));
return FALSE;
}
sp_set_data (self->pipe, self);
g_free (self->socket_path);
self->socket_path = g_strdup (sp_writer_get_path (self->pipe));
GST_DEBUG ("Created socket at %s", self->socket_path);
self->poll = gst_poll_new (TRUE);
gst_poll_fd_init (&self->serverpollfd);
self->serverpollfd.fd = sp_get_fd (self->pipe);
gst_poll_add_fd (self->poll, &self->serverpollfd);
gst_poll_fd_ctl_read (self->poll, &self->serverpollfd, TRUE);
self->pollthread =
g_thread_try_new ("gst-shmsink-poll-thread", pollthread_func, self, &err);
if (!self->pollthread)
goto thread_error;
self->allocator = gst_shm_sink_allocator_new (self);
return TRUE;
thread_error:
sp_writer_close (self->pipe, NULL, NULL);
self->pipe = NULL;
gst_poll_free (self->poll);
GST_ELEMENT_ERROR (self, CORE, THREAD, ("Could not start thread"),
("%s", err->message));
g_error_free (err);
return FALSE;
}
static gboolean
gst_avdtp_src_start (GstBaseSrc * bsrc)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
/* None of this can go into prepare() since we need to set up the
* connection to figure out what format the device is going to send us.
*/
if (!gst_avdtp_connection_acquire (&avdtpsrc->conn, FALSE)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to acquire connection");
return FALSE;
}
if (!gst_avdtp_connection_get_properties (&avdtpsrc->conn)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get transport properties");
goto fail;
}
if (!gst_avdtp_connection_conf_recv_stream_fd (&avdtpsrc->conn)) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to configure stream fd");
goto fail;
}
GST_DEBUG_OBJECT (avdtpsrc, "Setting block size to link MTU (%d)",
avdtpsrc->conn.data.link_mtu);
gst_base_src_set_blocksize (GST_BASE_SRC (avdtpsrc),
avdtpsrc->conn.data.link_mtu);
avdtpsrc->dev_caps = gst_avdtp_connection_get_caps (&avdtpsrc->conn);
if (!avdtpsrc->dev_caps) {
GST_ERROR_OBJECT (avdtpsrc, "Failed to get device caps");
goto fail;
}
gst_poll_fd_init (&avdtpsrc->pfd);
avdtpsrc->pfd.fd = g_io_channel_unix_get_fd (avdtpsrc->conn.stream);
gst_poll_add_fd (avdtpsrc->poll, &avdtpsrc->pfd);
gst_poll_fd_ctl_read (avdtpsrc->poll, &avdtpsrc->pfd, TRUE);
gst_poll_set_flushing (avdtpsrc->poll, FALSE);
g_atomic_int_set (&avdtpsrc->unlocked, FALSE);
/* The life time of the connection is shorter than the src object, so we
* don't need to worry about memory management */
gst_avdtp_connection_notify_volume (&avdtpsrc->conn, G_OBJECT (avdtpsrc),
"transport-volume");
gst_avdtp_src_start_avrcp (avdtpsrc);
return TRUE;
fail:
gst_avdtp_connection_release (&avdtpsrc->conn);
return FALSE;
}
static gboolean
gst_plugin_loader_try_helper (GstPluginLoader * loader, gchar * location)
{
char *argv[5] = { NULL, };
int c = 0;
#if defined (__APPLE__) && defined (USR_BIN_ARCH_SWITCH)
if (gst_plugin_loader_use_usr_bin_arch ()) {
argv[c++] = (char *) "/usr/bin/arch";
argv[c++] = (char *) USR_BIN_ARCH_SWITCH;
}
#endif
argv[c++] = location;
argv[c++] = (char *) "-l";
argv[c++] = NULL;
if (c > 3) {
GST_LOG ("Trying to spawn gst-plugin-scanner helper at %s with arch %s",
location, argv[1]);
} else {
GST_LOG ("Trying to spawn gst-plugin-scanner helper at %s", location);
}
if (!g_spawn_async_with_pipes (NULL, argv, NULL,
G_SPAWN_DO_NOT_REAP_CHILD /* | G_SPAWN_STDERR_TO_DEV_NULL */ ,
NULL, NULL, &loader->child_pid, &loader->fd_w.fd, &loader->fd_r.fd,
NULL, NULL))
return FALSE;
gst_poll_add_fd (loader->fdset, &loader->fd_w);
gst_poll_add_fd (loader->fdset, &loader->fd_r);
gst_poll_fd_ctl_read (loader->fdset, &loader->fd_r, TRUE);
loader->tx_buf_write = loader->tx_buf_read = 0;
put_packet (loader, PACKET_VERSION, 0, NULL, 0);
if (!plugin_loader_sync_with_child (loader))
return FALSE;
loader->child_running = TRUE;
return TRUE;
}
static gboolean
gst_vaapi_window_wayland_sync (GstVaapiWindow * window)
{
GstVaapiWindowWaylandPrivate *const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE (window);
struct wl_display *const wl_display =
GST_VAAPI_OBJECT_NATIVE_DISPLAY (window);
if (priv->sync_failed)
return FALSE;
if (priv->pollfd.fd < 0) {
priv->pollfd.fd = wl_display_get_fd (wl_display);
gst_poll_add_fd (priv->poll, &priv->pollfd);
gst_poll_fd_ctl_read (priv->poll, &priv->pollfd, TRUE);
}
while (g_atomic_int_get (&priv->num_frames_pending) > 0) {
while (wl_display_prepare_read_queue (wl_display, priv->event_queue) < 0) {
if (wl_display_dispatch_queue_pending (wl_display, priv->event_queue) < 0)
goto error;
}
if (wl_display_flush (wl_display) < 0)
goto error;
again:
if (gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE) < 0) {
int saved_errno = errno;
if (saved_errno == EAGAIN || saved_errno == EINTR)
goto again;
if (saved_errno == EBUSY) { /* closing */
wl_display_cancel_read (wl_display);
return FALSE;
}
goto error;
}
if (wl_display_read_events (wl_display) < 0)
goto error;
if (wl_display_dispatch_queue_pending (wl_display, priv->event_queue) < 0)
goto error;
}
return TRUE;
/* ERRORS */
error:
{
priv->sync_failed = TRUE;
GST_ERROR ("Error on dispatching events: %s", g_strerror (errno));
return FALSE;
}
}
static void
gst_fd_src_update_fd (GstFdSrc * src)
{
struct stat stat_results;
/* we need to always update the fdset since it may not have existed when
* gst_fd_src_update_fd() was called earlier */
if (src->fdset != NULL) {
GstPollFD fd = GST_POLL_FD_INIT;
if (src->fd >= 0) {
fd.fd = src->fd;
gst_poll_remove_fd (src->fdset, &fd);
}
fd.fd = src->new_fd;
gst_poll_add_fd (src->fdset, &fd);
gst_poll_fd_ctl_read (src->fdset, &fd, TRUE);
}
if (src->fd != src->new_fd) {
GST_INFO_OBJECT (src, "Updating to fd %d", src->new_fd);
src->fd = src->new_fd;
g_free (src->uri);
src->uri = g_strdup_printf ("fd://%d", src->fd);
if (fstat (src->fd, &stat_results) < 0)
goto not_seekable;
if (!S_ISREG (stat_results.st_mode))
goto not_seekable;
/* Try a seek of 0 bytes offset to check for seekability */
if (lseek (src->fd, 0, SEEK_CUR) < 0)
goto not_seekable;
GST_INFO_OBJECT (src, "marking fd %d as seekable", src->fd);
src->seekable_fd = TRUE;
}
return;
not_seekable:
{
GST_INFO_OBJECT (src, "marking fd %d as NOT seekable", src->fd);
src->seekable_fd = FALSE;
}
}
static gpointer
gst_mfx_window_wayland_thread_run (gpointer window)
{
GstMfxWindowWaylandPrivate *const priv =
GST_MFX_WINDOW_WAYLAND_GET_PRIVATE (window);
struct wl_display *const wl_display =
GST_MFX_DISPLAY_HANDLE (GST_MFX_WINDOW_DISPLAY (window));
if (priv->sync_failed)
return NULL;
if (priv->pollfd.fd < 0) {
priv->pollfd.fd = wl_display_get_fd (wl_display);
gst_poll_add_fd (priv->poll, &priv->pollfd);
gst_poll_fd_ctl_read (priv->poll, &priv->pollfd, TRUE);
}
while (1) {
while (wl_display_prepare_read_queue (wl_display, priv->event_queue) < 0) {
if (wl_display_dispatch_queue_pending (wl_display, priv->event_queue) < 0)
goto error;
}
if (wl_display_flush (wl_display) < 0)
goto error;
again:
if (gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE) < 0) {
int saved_errno = errno;
if (saved_errno == EAGAIN || saved_errno == EINTR)
goto again;
wl_display_cancel_read (wl_display);
if (saved_errno == EBUSY) /* flushing */
return NULL;
else
goto error;
}
if (wl_display_read_events (wl_display) < 0)
goto error;
if (wl_display_dispatch_queue_pending (wl_display, priv->event_queue) < 0)
goto error;
}
return NULL;
error:
priv->sync_failed = TRUE;
GST_ERROR ("Error on dispatching events: %s", g_strerror (errno));
return NULL;
}
static gboolean
gst_shm_src_start_reading (GstShmSrc * self)
{
GstShmPipe *gstpipe;
if (!self->socket_path) {
GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
("No path specified for socket."), (NULL));
return FALSE;
}
gstpipe = g_slice_new0 (GstShmPipe);
gstpipe->use_count = 1;
gstpipe->src = gst_object_ref (self);
GST_DEBUG_OBJECT (self, "Opening socket %s", self->socket_path);
GST_OBJECT_LOCK (self);
gstpipe->pipe = sp_client_open (self->socket_path);
GST_OBJECT_UNLOCK (self);
if (!gstpipe->pipe) {
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
("Could not open socket %s: %d %s", self->socket_path, errno,
strerror (errno)), (NULL));
gst_shm_pipe_dec (gstpipe);
return FALSE;
}
self->pipe = gstpipe;
gst_poll_set_flushing (self->poll, FALSE);
gst_poll_fd_init (&self->pollfd);
self->pollfd.fd = sp_get_fd (self->pipe->pipe);
gst_poll_add_fd (self->poll, &self->pollfd);
gst_poll_fd_ctl_read (self->poll, &self->pollfd, TRUE);
return TRUE;
}
static gboolean
gst_dvbsrc_start (GstBaseSrc * bsrc)
{
GstDvbSrc *src = GST_DVBSRC (bsrc);
gst_dvbsrc_open_frontend (src, TRUE);
if (!gst_dvbsrc_tune (src)) {
GST_ERROR_OBJECT (src, "Not able to lock on to the dvb channel");
close (src->fd_frontend);
return FALSE;
}
if (!gst_dvbsrc_frontend_status (src)) {
/* unset filters also */
gst_dvbsrc_unset_pes_filters (src);
close (src->fd_frontend);
return FALSE;
}
if (!gst_dvbsrc_open_dvr (src)) {
GST_ERROR_OBJECT (src, "Not able to open dvr_device");
/* unset filters also */
gst_dvbsrc_unset_pes_filters (src);
close (src->fd_frontend);
return FALSE;
}
if (!(src->poll = gst_poll_new (TRUE))) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
("could not create an fdset: %s (%d)", g_strerror (errno), errno));
/* unset filters also */
gst_dvbsrc_unset_pes_filters (src);
close (src->fd_frontend);
return FALSE;
} else {
gst_poll_fd_init (&src->poll_fd_dvr);
src->poll_fd_dvr.fd = src->fd_dvr;
gst_poll_add_fd (src->poll, &src->poll_fd_dvr);
gst_poll_fd_ctl_read (src->poll, &src->poll_fd_dvr, TRUE);
}
return TRUE;
}
/* This function gets called by libcurl after the socket() call but before
* the connect() call. */
static int
gst_curl_base_sink_transfer_socket_cb (void *clientp, curl_socket_t curlfd,
curlsocktype socket_type)
{
GstCurlBaseSink *sink;
gboolean ret = TRUE;
sink = (GstCurlBaseSink *) clientp;
g_assert (sink);
if (curlfd < 0) {
/* signal an unrecoverable error to the library which will close the socket
and return CURLE_COULDNT_CONNECT
*/
GST_DEBUG_OBJECT (sink, "no curlfd");
return 1;
}
GST_OBJECT_LOCK (sink);
sink->socket_type = socket_type;
if (sink->fd.fd != curlfd) {
if (sink->fd.fd > 0 && sink->socket_type != CURLSOCKTYPE_ACCEPT) {
ret &= gst_poll_remove_fd (sink->fdset, &sink->fd);
}
sink->fd.fd = curlfd;
ret &= gst_poll_add_fd (sink->fdset, &sink->fd);
ret &= gst_poll_fd_ctl_write (sink->fdset, &sink->fd, TRUE);
ret &= gst_poll_fd_ctl_read (sink->fdset, &sink->fd, TRUE);
}
GST_DEBUG_OBJECT (sink, "fd: %d", sink->fd.fd);
gst_curl_base_sink_setup_dscp_unlocked (sink);
GST_OBJECT_UNLOCK (sink);
/* success */
return ret ? 0 : 1;
}
static gboolean
gst_fd_sink_update_fd (GstFdSink * fdsink, int new_fd, GError ** error)
{
if (new_fd < 0) {
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_REFERENCE,
"File descriptor %d is not valid", new_fd);
return FALSE;
}
if (!gst_fd_sink_check_fd (fdsink, new_fd, error))
goto invalid;
/* assign the fd */
GST_OBJECT_LOCK (fdsink);
if (fdsink->fdset) {
GstPollFD fd = GST_POLL_FD_INIT;
fd.fd = fdsink->fd;
gst_poll_remove_fd (fdsink->fdset, &fd);
fd.fd = new_fd;
gst_poll_add_fd (fdsink->fdset, &fd);
gst_poll_fd_ctl_write (fdsink->fdset, &fd, TRUE);
}
fdsink->fd = new_fd;
g_free (fdsink->uri);
fdsink->uri = g_strdup_printf ("fd://%d", fdsink->fd);
GST_OBJECT_UNLOCK (fdsink);
return TRUE;
invalid:
{
return FALSE;
}
}
/* This function gets called by libcurl after the socket() call but before
* the connect() call. */
static int
gst_curl_base_sink_transfer_socket_cb (void *clientp, curl_socket_t curlfd,
curlsocktype G_GNUC_UNUSED purpose)
{
GstCurlBaseSink *sink;
gboolean ret = TRUE;
sink = (GstCurlBaseSink *) clientp;
g_assert (sink);
if (curlfd < 0) {
/* signal an unrecoverable error to the library which will close the socket
and return CURLE_COULDNT_CONNECT
*/
return 1;
}
gst_poll_fd_init (&sink->fd);
sink->fd.fd = curlfd;
ret = ret && gst_poll_add_fd (sink->fdset, &sink->fd);
ret = ret && gst_poll_fd_ctl_write (sink->fdset, &sink->fd, TRUE);
ret = ret && gst_poll_fd_ctl_read (sink->fdset, &sink->fd, TRUE);
GST_DEBUG ("fd: %d", sink->fd.fd);
GST_OBJECT_LOCK (sink);
gst_curl_base_sink_setup_dscp_unlocked (sink);
GST_OBJECT_UNLOCK (sink);
/* success */
if (ret) {
return 0;
} else {
return 1;
}
}
static void
mess_some_more (void)
{
GList *walk;
gint random;
gint removed = 0;
g_mutex_lock (fdlock);
for (walk = fds; walk;) {
GstPollFD *fd = (GstPollFD *) walk->data;
walk = g_list_next (walk);
random = (gint) (10.0 * rand () / (RAND_MAX + 1.0));
switch (random) {
case 0:
{
/*
GstPollFD *newfd = g_new0 (GstPollFD, 1);
gst_poll_add_fd (set, newfd);
fds = g_list_prepend (fds, newfd);
*/
break;
}
case 1:
if ((gint) (10.0 * rand () / (RAND_MAX + 1.0)) < 2) {
gst_poll_remove_fd (set, fd);
fds = g_list_remove (fds, fd);
g_free (fd);
removed++;
}
break;
case 2:
gst_poll_fd_ctl_write (set, fd, TRUE);
break;
case 3:
gst_poll_fd_ctl_write (set, fd, FALSE);
break;
case 4:
gst_poll_fd_ctl_read (set, fd, TRUE);
break;
case 5:
gst_poll_fd_ctl_read (set, fd, FALSE);
break;
case 6:
gst_poll_fd_has_closed (set, fd);
break;
case 7:
gst_poll_fd_has_error (set, fd);
break;
case 8:
gst_poll_fd_can_read (set, fd);
break;
case 9:
gst_poll_fd_can_write (set, fd);
break;
default:
g_assert_not_reached ();
break;
}
}
if (g_list_length (fds) < 900) {
random = removed + (gint) (2.0 * rand () / (RAND_MAX + 1.0));
while (random) {
GstPollFD *newfd = g_new0 (GstPollFD, 1);
gst_poll_add_fd (set, newfd);
fds = g_list_prepend (fds, newfd);
random--;
}
}
g_mutex_unlock (fdlock);
}
static gboolean
gst_net_client_clock_start (GstNetClientClock * self)
{
struct sockaddr_in servaddr, myaddr;
socklen_t len;
gint ret;
GError *error;
g_return_val_if_fail (self->address != NULL, FALSE);
g_return_val_if_fail (self->servaddr == NULL, FALSE);
if ((ret = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
goto no_socket;
self->priv->sock.fd = ret;
len = sizeof (myaddr);
ret = getsockname (self->priv->sock.fd, (struct sockaddr *) &myaddr, &len);
if (ret < 0)
goto getsockname_error;
memset (&servaddr, 0, sizeof (servaddr));
servaddr.sin_family = AF_INET; /* host byte order */
servaddr.sin_port = htons (self->port); /* short, network byte order */
GST_DEBUG_OBJECT (self, "socket opened on UDP port %hd",
ntohs (servaddr.sin_port));
if (!inet_aton (self->address, &servaddr.sin_addr))
goto bad_address;
self->servaddr = g_malloc (sizeof (struct sockaddr_in));
memcpy (self->servaddr, &servaddr, sizeof (servaddr));
GST_DEBUG_OBJECT (self, "will communicate with %s:%d", self->address,
self->port);
gst_poll_add_fd (self->priv->fdset, &self->priv->sock);
gst_poll_fd_ctl_read (self->priv->fdset, &self->priv->sock, TRUE);
self->thread = g_thread_create (gst_net_client_clock_thread, self, TRUE,
&error);
if (!self->thread)
goto no_thread;
return TRUE;
/* ERRORS */
no_socket:
{
GST_ERROR_OBJECT (self, "socket failed %d: %s (%d)", ret,
g_strerror (errno), errno);
return FALSE;
}
getsockname_error:
{
GST_ERROR_OBJECT (self, "getsockname failed %d: %s (%d)", ret,
g_strerror (errno), errno);
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
return FALSE;
}
bad_address:
{
GST_ERROR_OBJECT (self, "inet_aton failed %d: %s (%d)", ret,
g_strerror (errno), errno);
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
return FALSE;
}
no_thread:
{
GST_ERROR_OBJECT (self, "could not create thread: %s", error->message);
gst_poll_remove_fd (self->priv->fdset, &self->priv->sock);
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
g_free (self->servaddr);
self->servaddr = NULL;
g_error_free (error);
return FALSE;
}
}
static gpointer
pollthread_func (gpointer data)
{
GstShmSink *self = GST_SHM_SINK (data);
GList *item;
GstClockTime timeout = GST_CLOCK_TIME_NONE;
int rv = 0;
while (!self->stop) {
do {
rv = gst_poll_wait (self->poll, timeout);
} while (rv < 0 && errno == EINTR);
if (rv < 0) {
GST_ELEMENT_ERROR (self, RESOURCE, READ,
("Failed waiting on fd activity"),
("gst_poll_wait returned %d, errno: %d", rv, errno));
return NULL;
}
timeout = GST_CLOCK_TIME_NONE;
if (self->stop)
return NULL;
if (gst_poll_fd_has_closed (self->poll, &self->serverpollfd)) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed read from shmsink"),
("Control socket has closed"));
return NULL;
}
if (gst_poll_fd_has_error (self->poll, &self->serverpollfd)) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed to read from shmsink"),
("Control socket has error"));
return NULL;
}
if (gst_poll_fd_can_read (self->poll, &self->serverpollfd)) {
ShmClient *client;
struct GstShmClient *gclient;
GST_OBJECT_LOCK (self);
client = sp_writer_accept_client (self->pipe);
GST_OBJECT_UNLOCK (self);
if (!client) {
GST_ELEMENT_ERROR (self, RESOURCE, READ,
("Failed to read from shmsink"),
("Control socket returns wrong data"));
return NULL;
}
gclient = g_slice_new (struct GstShmClient);
gclient->client = client;
gst_poll_fd_init (&gclient->pollfd);
gclient->pollfd.fd = sp_writer_get_client_fd (client);
gst_poll_add_fd (self->poll, &gclient->pollfd);
gst_poll_fd_ctl_read (self->poll, &gclient->pollfd, TRUE);
self->clients = g_list_prepend (self->clients, gclient);
g_signal_emit (self, signals[SIGNAL_CLIENT_CONNECTED], 0,
gclient->pollfd.fd);
/* we need to call gst_poll_wait before calling gst_poll_* status
functions on that new descriptor, so restart the loop, so _wait
will have been called on all elements of self->poll, whether
they have just been added or not. */
timeout = 0;
continue;
}
again:
for (item = self->clients; item; item = item->next) {
struct GstShmClient *gclient = item->data;
if (gst_poll_fd_has_closed (self->poll, &gclient->pollfd)) {
GST_WARNING_OBJECT (self, "One client is gone, closing");
goto close_client;
}
if (gst_poll_fd_has_error (self->poll, &gclient->pollfd)) {
GST_WARNING_OBJECT (self, "One client fd has error, closing");
goto close_client;
}
if (gst_poll_fd_can_read (self->poll, &gclient->pollfd)) {
int rv;
gpointer tag = NULL;
GST_OBJECT_LOCK (self);
rv = sp_writer_recv (self->pipe, gclient->client, &tag);
GST_OBJECT_UNLOCK (self);
if (rv < 0) {
GST_WARNING_OBJECT (self, "One client has read error,"
" closing (retval: %d errno: %d)", rv, errno);
goto close_client;
}
g_assert (rv == 0 || tag == NULL);
if (rv == 0)
gst_buffer_unref (tag);
}
continue;
close_client:
{
GSList *list = NULL;
GST_OBJECT_LOCK (self);
sp_writer_close_client (self->pipe, gclient->client,
(sp_buffer_free_callback) free_buffer_locked, (void **) &list);
GST_OBJECT_UNLOCK (self);
g_slist_free_full (list, (GDestroyNotify) gst_buffer_unref);
}
gst_poll_remove_fd (self->poll, &gclient->pollfd);
self->clients = g_list_remove (self->clients, gclient);
g_signal_emit (self, signals[SIGNAL_CLIENT_DISCONNECTED], 0,
gclient->pollfd.fd);
g_slice_free (struct GstShmClient, gclient);
goto again;
}
g_cond_broadcast (&self->cond);
}
/******************************************************
* gst_v4l2_open():
* open the video device (v4l2object->videodev)
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_open (GstV4l2Object * v4l2object)
{
struct stat st;
int libv4l2_fd;
GstPollFD pollfd = GST_POLL_FD_INIT;
GST_DEBUG_OBJECT (v4l2object->element, "Trying to open device %s",
v4l2object->videodev);
GST_V4L2_CHECK_NOT_OPEN (v4l2object);
GST_V4L2_CHECK_NOT_ACTIVE (v4l2object);
/* be sure we have a device */
if (!v4l2object->videodev)
v4l2object->videodev = g_strdup ("/dev/video");
/* check if it is a device */
if (stat (v4l2object->videodev, &st) == -1)
goto stat_failed;
if (!S_ISCHR (st.st_mode))
goto no_device;
/* open the device */
v4l2object->video_fd =
open (v4l2object->videodev, O_RDWR /* | O_NONBLOCK */ );
if (!GST_V4L2_IS_OPEN (v4l2object))
goto not_open;
libv4l2_fd = v4l2_fd_open (v4l2object->video_fd,
V4L2_ENABLE_ENUM_FMT_EMULATION);
/* Note the v4l2_xxx functions are designed so that if they get passed an
unknown fd, the will behave exactly as their regular xxx counterparts, so
if v4l2_fd_open fails, we continue as normal (missing the libv4l2 custom
cam format to normal formats conversion). Chances are big we will still
fail then though, as normally v4l2_fd_open only fails if the device is not
a v4l2 device. */
if (libv4l2_fd != -1)
v4l2object->video_fd = libv4l2_fd;
v4l2object->can_poll_device = TRUE;
/* get capabilities, error will be posted */
if (!gst_v4l2_get_capabilities (v4l2object))
goto error;
/* do we need to be a capture device? */
if (GST_IS_V4L2SRC (v4l2object->element) &&
!(v4l2object->vcap.capabilities & V4L2_CAP_VIDEO_CAPTURE))
goto not_capture;
if (GST_IS_V4L2SINK (v4l2object->element) &&
!(v4l2object->vcap.capabilities & V4L2_CAP_VIDEO_OUTPUT))
goto not_output;
/* create enumerations, posts errors. */
if (!gst_v4l2_fill_lists (v4l2object))
goto error;
GST_INFO_OBJECT (v4l2object->element,
"Opened device '%s' (%s) successfully",
v4l2object->vcap.card, v4l2object->videodev);
pollfd.fd = v4l2object->video_fd;
gst_poll_add_fd (v4l2object->poll, &pollfd);
gst_poll_fd_ctl_read (v4l2object->poll, &pollfd, TRUE);
return TRUE;
/* ERRORS */
stat_failed:
{
GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, NOT_FOUND,
(_("Cannot identify device '%s'."), v4l2object->videodev),
GST_ERROR_SYSTEM);
goto error;
}
no_device:
{
GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, NOT_FOUND,
(_("This isn't a device '%s'."), v4l2object->videodev),
GST_ERROR_SYSTEM);
goto error;
}
not_open:
{
GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, OPEN_READ_WRITE,
(_("Could not open device '%s' for reading and writing."),
v4l2object->videodev), GST_ERROR_SYSTEM);
goto error;
}
not_capture:
{
GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, NOT_FOUND,
(_("Device '%s' is not a capture device."),
v4l2object->videodev),
("Capabilities: 0x%x", v4l2object->vcap.capabilities));
goto error;
}
not_output:
{
GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, NOT_FOUND,
(_("Device '%s' is not a output device."),
v4l2object->videodev),
("Capabilities: 0x%x", v4l2object->vcap.capabilities));
goto error;
}
error:
{
if (GST_V4L2_IS_OPEN (v4l2object)) {
/* close device */
v4l2_close (v4l2object->video_fd);
v4l2object->video_fd = -1;
}
/* empty lists */
gst_v4l2_empty_lists (v4l2object);
return FALSE;
}
}
static gboolean
gst_kms_sink_start (GstBaseSink * bsink)
{
GstKMSSink *self;
drmModeRes *res;
drmModeConnector *conn;
drmModeCrtc *crtc;
drmModePlaneRes *pres;
drmModePlane *plane;
gboolean universal_planes;
gboolean ret;
self = GST_KMS_SINK (bsink);
universal_planes = FALSE;
ret = FALSE;
res = NULL;
conn = NULL;
crtc = NULL;
pres = NULL;
plane = NULL;
if (self->devname)
self->fd = drmOpen (self->devname, NULL);
else
self->fd = kms_open (&self->devname);
if (self->fd < 0)
goto open_failed;
log_drm_version (self);
if (!get_drm_caps (self))
goto bail;
res = drmModeGetResources (self->fd);
if (!res)
goto resources_failed;
if (self->conn_id == -1)
conn = find_main_monitor (self->fd, res);
else
conn = drmModeGetConnector (self->fd, self->conn_id);
if (!conn)
goto connector_failed;
crtc = find_crtc_for_connector (self->fd, res, conn, &self->pipe);
if (!crtc)
goto crtc_failed;
retry_find_plane:
if (universal_planes &&
drmSetClientCap (self->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1))
goto set_cap_failed;
pres = drmModeGetPlaneResources (self->fd);
if (!pres)
goto plane_resources_failed;
if (self->plane_id == -1)
plane = find_plane_for_crtc (self->fd, res, pres, crtc->crtc_id);
else
plane = drmModeGetPlane (self->fd, self->plane_id);
if (!plane)
goto plane_failed;
/* let's get the available color formats in plane */
if (!ensure_allowed_caps (self, plane, res))
goto bail;
self->conn_id = conn->connector_id;
self->crtc_id = crtc->crtc_id;
self->plane_id = plane->plane_id;
GST_INFO_OBJECT (self, "connector id = %d / crtc id = %d / plane id = %d",
self->conn_id, self->crtc_id, self->plane_id);
self->hdisplay = crtc->mode.hdisplay;
self->vdisplay = crtc->mode.vdisplay;
self->buffer_id = crtc->buffer_id;
self->mm_width = conn->mmWidth;
self->mm_height = conn->mmHeight;
GST_INFO_OBJECT (self, "display size: pixels = %dx%d / millimeters = %dx%d",
self->hdisplay, self->vdisplay, self->mm_width, self->mm_height);
self->pollfd.fd = self->fd;
gst_poll_add_fd (self->poll, &self->pollfd);
gst_poll_fd_ctl_read (self->poll, &self->pollfd, TRUE);
ret = TRUE;
bail:
if (plane)
drmModeFreePlane (plane);
if (pres)
drmModeFreePlaneResources (pres);
if (crtc)
drmModeFreeCrtc (crtc);
if (conn)
drmModeFreeConnector (conn);
if (res)
drmModeFreeResources (res);
if (!ret && self->fd >= 0) {
drmClose (self->fd);
self->fd = -1;
}
return ret;
/* ERRORS */
open_failed:
{
GST_ERROR_OBJECT (self, "Could not open DRM module %s: %s",
GST_STR_NULL (self->devname), strerror (errno));
return FALSE;
}
resources_failed:
{
GST_ERROR_OBJECT (self, "drmModeGetResources failed: %s (%d)",
strerror (errno), errno);
goto bail;
}
connector_failed:
{
GST_ERROR_OBJECT (self, "Could not find a valid monitor connector");
goto bail;
}
crtc_failed:
{
GST_ERROR_OBJECT (self, "Could not find a crtc for connector");
goto bail;
}
set_cap_failed:
{
GST_ERROR_OBJECT (self, "Could not set universal planes capability bit");
goto bail;
}
plane_resources_failed:
{
GST_ERROR_OBJECT (self, "drmModeGetPlaneResources failed: %s (%d)",
strerror (errno), errno);
goto bail;
}
plane_failed:
{
if (universal_planes) {
GST_ERROR_OBJECT (self, "Could not find a plane for crtc");
goto bail;
} else {
universal_planes = TRUE;
goto retry_find_plane;
}
}
}
/**
* gst_v4l2_buffer_pool_new:
* @obj: the v4l2 object owning the pool
*
* Construct a new buffer pool.
*
* Returns: the new pool, use gst_object_unref() to free resources
*/
GstBufferPool *
gst_v4l2_buffer_pool_new (GstV4l2Object * obj, GstCaps * caps)
{
GstV4l2BufferPool *pool;
GstStructure *config;
gchar *name, *parent_name;
gint fd;
fd = v4l2_dup (obj->video_fd);
if (fd < 0)
goto dup_failed;
/* setting a significant unique name */
parent_name = gst_object_get_name (GST_OBJECT (obj->element));
name = g_strconcat (parent_name, ":", "pool:",
V4L2_TYPE_IS_OUTPUT (obj->type) ? "sink" : "src", NULL);
g_free (parent_name);
pool = (GstV4l2BufferPool *) g_object_new (GST_TYPE_V4L2_BUFFER_POOL,
"name", name, NULL);
g_free (name);
gst_poll_fd_init (&pool->pollfd);
pool->pollfd.fd = fd;
gst_poll_add_fd (pool->poll, &pool->pollfd);
if (V4L2_TYPE_IS_OUTPUT (obj->type))
gst_poll_fd_ctl_write (pool->poll, &pool->pollfd, TRUE);
else
gst_poll_fd_ctl_read (pool->poll, &pool->pollfd, TRUE);
pool->video_fd = fd;
pool->obj = obj;
pool->can_poll_device = TRUE;
pool->vallocator =
gst_v4l2_allocator_new (GST_OBJECT (pool), obj->video_fd, &obj->format);
if (pool->vallocator == NULL)
goto allocator_failed;
gst_object_ref (obj->element);
config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
gst_buffer_pool_config_set_params (config, caps, obj->info.size, 0, 0);
/* This will simply set a default config, but will not configure the pool
* because min and max are not valid */
gst_buffer_pool_set_config (GST_BUFFER_POOL_CAST (pool), config);
return GST_BUFFER_POOL (pool);
/* ERRORS */
dup_failed:
{
GST_ERROR ("failed to dup fd %d (%s)", errno, g_strerror (errno));
return NULL;
}
allocator_failed:
{
GST_ERROR_OBJECT (pool, "Failed to create V4L2 allocator");
return NULL;
}
}
static gboolean
gst_net_time_provider_start (GstNetTimeProvider * self)
{
gint ru;
struct sockaddr_in my_addr;
guint len;
int port;
gint ret;
GError *error;
if ((ret = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
goto no_socket;
self->priv->sock.fd = ret;
ru = 1;
ret =
setsockopt (self->priv->sock.fd, SOL_SOCKET, SO_REUSEADDR, &ru,
sizeof (ru));
if (ret < 0)
goto setsockopt_error;
memset (&my_addr, 0, sizeof (my_addr));
my_addr.sin_family = AF_INET; /* host byte order */
my_addr.sin_port = htons ((gint16) self->port); /* short, network byte order */
my_addr.sin_addr.s_addr = INADDR_ANY;
if (self->address)
inet_aton (self->address, &my_addr.sin_addr);
GST_DEBUG_OBJECT (self, "binding on port %d", self->port);
ret =
bind (self->priv->sock.fd, (struct sockaddr *) &my_addr,
sizeof (my_addr));
if (ret < 0)
goto bind_error;
len = sizeof (my_addr);
#ifdef G_OS_WIN32
ret =
getsockname (self->priv->sock.fd, (struct sockaddr *) &my_addr,
(gint *) & len);
#else
ret = getsockname (self->priv->sock.fd, (struct sockaddr *) &my_addr, &len);
#endif
if (ret < 0)
goto getsockname_error;
port = ntohs (my_addr.sin_port);
GST_DEBUG_OBJECT (self, "bound, on port %d", port);
if (port != self->port) {
self->port = port;
GST_DEBUG_OBJECT (self, "notifying %d", port);
g_object_notify (G_OBJECT (self), "port");
}
gst_poll_add_fd (self->priv->fdset, &self->priv->sock);
gst_poll_fd_ctl_read (self->priv->fdset, &self->priv->sock, TRUE);
self->thread = g_thread_create (gst_net_time_provider_thread, self, TRUE,
&error);
if (!self->thread)
goto no_thread;
return TRUE;
/* ERRORS */
no_socket:
{
GST_ERROR_OBJECT (self, "socket failed %d: %s (%d)", ret,
g_strerror (errno), errno);
return FALSE;
}
setsockopt_error:
{
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
GST_ERROR_OBJECT (self, "setsockopt failed %d: %s (%d)", ret,
g_strerror (errno), errno);
return FALSE;
}
bind_error:
{
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
GST_ERROR_OBJECT (self, "bind failed %d: %s (%d)", ret,
g_strerror (errno), errno);
return FALSE;
}
getsockname_error:
{
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
GST_ERROR_OBJECT (self, "getsockname failed %d: %s (%d)", ret,
g_strerror (errno), errno);
return FALSE;
}
no_thread:
{
gst_poll_remove_fd (self->priv->fdset, &self->priv->sock);
close (self->priv->sock.fd);
self->priv->sock.fd = -1;
GST_ERROR_OBJECT (self, "could not create thread: %s", error->message);
g_error_free (error);
return FALSE;
}
}
static gpointer
pollthread_func (gpointer data)
{
GstShmSink *self = GST_SHM_SINK (data);
GList *item;
while (!self->stop) {
if (gst_poll_wait (self->poll, GST_CLOCK_TIME_NONE) < 0)
return NULL;
if (self->stop)
return NULL;
if (gst_poll_fd_has_closed (self->poll, &self->serverpollfd)) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed read from shmsink"),
("Control socket has closed"));
return NULL;
}
if (gst_poll_fd_has_error (self->poll, &self->serverpollfd)) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed to read from shmsink"),
("Control socket has error"));
return NULL;
}
if (gst_poll_fd_can_read (self->poll, &self->serverpollfd)) {
ShmClient *client;
struct GstShmClient *gclient;
GST_OBJECT_LOCK (self);
client = sp_writer_accept_client (self->pipe);
GST_OBJECT_UNLOCK (self);
if (!client) {
GST_ELEMENT_ERROR (self, RESOURCE, READ,
("Failed to read from shmsink"),
("Control socket returns wrong data"));
return NULL;
}
gclient = g_slice_new (struct GstShmClient);
gclient->client = client;
gst_poll_fd_init (&gclient->pollfd);
gclient->pollfd.fd = sp_writer_get_client_fd (client);
gst_poll_add_fd (self->poll, &gclient->pollfd);
gst_poll_fd_ctl_read (self->poll, &gclient->pollfd, TRUE);
self->clients = g_list_prepend (self->clients, gclient);
g_signal_emit (self, signals[SIGNAL_CLIENT_CONNECTED], 0,
gclient->pollfd.fd);
}
again:
for (item = self->clients; item; item = item->next) {
struct GstShmClient *gclient = item->data;
if (gst_poll_fd_has_closed (self->poll, &gclient->pollfd)) {
GST_WARNING_OBJECT (self, "One client is gone, closing");
goto close_client;
}
if (gst_poll_fd_has_error (self->poll, &gclient->pollfd)) {
GST_WARNING_OBJECT (self, "One client fd has error, closing");
goto close_client;
}
if (gst_poll_fd_can_read (self->poll, &gclient->pollfd)) {
int rv;
GST_OBJECT_LOCK (self);
rv = sp_writer_recv (self->pipe, gclient->client);
GST_OBJECT_UNLOCK (self);
if (rv < 0) {
GST_WARNING_OBJECT (self, "One client has read error,"
" closing (retval: %d errno: %d)", rv, errno);
goto close_client;
}
}
continue;
close_client:
GST_OBJECT_LOCK (self);
sp_writer_close_client (self->pipe, gclient->client);
GST_OBJECT_UNLOCK (self);
gst_poll_remove_fd (self->poll, &gclient->pollfd);
self->clients = g_list_remove (self->clients, gclient);
g_signal_emit (self, signals[SIGNAL_CLIENT_DISCONNECTED], 0,
gclient->pollfd.fd);
g_slice_free (struct GstShmClient, gclient);
goto again;
}
g_cond_broadcast (self->cond);
}
static GstFlowReturn
gst_tcp_server_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
{
GstTCPServerSrc *src;
GstFlowReturn ret = GST_FLOW_OK;
src = GST_TCP_SERVER_SRC (psrc);
if (!GST_OBJECT_FLAG_IS_SET (src, GST_TCP_SERVER_SRC_OPEN))
goto wrong_state;
restart:
if (src->client_sock_fd.fd >= 0) {
/* if we have a client, wait for read */
gst_poll_fd_ctl_read (src->fdset, &src->server_sock_fd, FALSE);
gst_poll_fd_ctl_read (src->fdset, &src->client_sock_fd, TRUE);
} else {
/* else wait on server socket for connections */
gst_poll_fd_ctl_read (src->fdset, &src->server_sock_fd, TRUE);
}
/* no action (0) is an error too in our case */
if ((ret = gst_poll_wait (src->fdset, GST_CLOCK_TIME_NONE)) <= 0) {
if (ret == -1 && errno == EBUSY)
goto select_cancelled;
else
goto select_error;
}
/* if we have no client socket we can accept one now */
if (src->client_sock_fd.fd < 0) {
if (gst_poll_fd_can_read (src->fdset, &src->server_sock_fd)) {
if ((src->client_sock_fd.fd =
accept (src->server_sock_fd.fd,
(struct sockaddr *) &src->client_sin,
&src->client_sin_len)) == -1)
goto accept_error;
gst_poll_add_fd (src->fdset, &src->client_sock_fd);
}
/* and restart now to poll the socket. */
goto restart;
}
GST_LOG_OBJECT (src, "asked for a buffer");
switch (src->protocol) {
case GST_TCP_PROTOCOL_NONE:
ret = gst_tcp_read_buffer (GST_ELEMENT (src), src->client_sock_fd.fd,
src->fdset, outbuf);
break;
case GST_TCP_PROTOCOL_GDP:
if (!src->caps_received) {
GstCaps *caps;
gchar *string;
ret = gst_tcp_gdp_read_caps (GST_ELEMENT (src), src->client_sock_fd.fd,
src->fdset, &caps);
if (ret == GST_FLOW_WRONG_STATE)
goto gdp_cancelled;
if (ret != GST_FLOW_OK)
goto gdp_caps_read_error;
src->caps_received = TRUE;
string = gst_caps_to_string (caps);
GST_DEBUG_OBJECT (src, "Received caps through GDP: %s", string);
g_free (string);
gst_pad_set_caps (GST_BASE_SRC_PAD (psrc), caps);
}
ret = gst_tcp_gdp_read_buffer (GST_ELEMENT (src), src->client_sock_fd.fd,
src->fdset, outbuf);
if (ret == GST_FLOW_OK)
gst_buffer_set_caps (*outbuf, GST_PAD_CAPS (GST_BASE_SRC_PAD (src)));
break;
default:
/* need to assert as buf == NULL */
g_assert ("Unhandled protocol type");
break;
}
if (ret == GST_FLOW_OK) {
GST_LOG_OBJECT (src,
"Returning buffer from _get of size %d, ts %"
GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT
", offset %" G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT,
GST_BUFFER_SIZE (*outbuf),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*outbuf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (*outbuf)),
GST_BUFFER_OFFSET (*outbuf), GST_BUFFER_OFFSET_END (*outbuf));
}
return ret;
wrong_state:
{
GST_DEBUG_OBJECT (src, "connection to closed, cannot read data");
return GST_FLOW_WRONG_STATE;
}
select_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("Select error: %s", g_strerror (errno)));
return GST_FLOW_ERROR;
}
select_cancelled:
{
GST_DEBUG_OBJECT (src, "select canceled");
return GST_FLOW_WRONG_STATE;
}
accept_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not accept client on server socket: %s", g_strerror (errno)));
return GST_FLOW_ERROR;
}
gdp_cancelled:
{
GST_DEBUG_OBJECT (src, "reading gdp canceled");
return GST_FLOW_WRONG_STATE;
}
gdp_caps_read_error:
{
/* if we did not get canceled, report an error */
if (ret != GST_FLOW_WRONG_STATE) {
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("Could not read caps through GDP"));
}
return ret;
}
}
/* set up server */
static gboolean
gst_tcp_server_src_start (GstBaseSrc * bsrc)
{
int ret;
GstTCPServerSrc *src = GST_TCP_SERVER_SRC (bsrc);
/* reset caps_received flag */
src->caps_received = FALSE;
/* create the server listener socket */
if ((src->server_sock_fd.fd = socket (AF_INET, SOCK_STREAM, 0)) == -1)
goto socket_error;
GST_DEBUG_OBJECT (src, "opened receiving server socket with fd %d",
src->server_sock_fd.fd);
/* make address reusable */
ret = 1;
if (setsockopt (src->server_sock_fd.fd, SOL_SOCKET, SO_REUSEADDR, &ret,
sizeof (int)) < 0)
goto sock_opt;
/* name the socket */
memset (&src->server_sin, 0, sizeof (src->server_sin));
src->server_sin.sin_family = AF_INET; /* network socket */
src->server_sin.sin_port = htons (src->server_port); /* on port */
if (src->host) {
gchar *host;
if (!(host = gst_tcp_host_to_ip (GST_ELEMENT (src), src->host)))
goto host_error;
src->server_sin.sin_addr.s_addr = inet_addr (host);
g_free (host);
} else
src->server_sin.sin_addr.s_addr = htonl (INADDR_ANY);
/* bind it */
GST_DEBUG_OBJECT (src, "binding server socket to address");
if ((ret = bind (src->server_sock_fd.fd, (struct sockaddr *) &src->server_sin,
sizeof (src->server_sin))) < 0)
goto bind_error;
GST_DEBUG_OBJECT (src, "listening on server socket %d with queue of %d",
src->server_sock_fd.fd, TCP_BACKLOG);
if (listen (src->server_sock_fd.fd, TCP_BACKLOG) == -1)
goto listen_error;
/* create an fdset to keep track of our file descriptors */
if ((src->fdset = gst_poll_new (TRUE)) == NULL)
goto socket_pair;
gst_poll_add_fd (src->fdset, &src->server_sock_fd);
GST_DEBUG_OBJECT (src, "received client");
GST_OBJECT_FLAG_SET (src, GST_TCP_SERVER_SRC_OPEN);
return TRUE;
/* ERRORS */
socket_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
return FALSE;
}
sock_opt:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("Could not setsockopt: %s", g_strerror (errno)));
gst_tcp_socket_close (&src->server_sock_fd);
return FALSE;
}
host_error:
{
gst_tcp_socket_close (&src->server_sock_fd);
return FALSE;
}
bind_error:
{
gst_tcp_socket_close (&src->server_sock_fd);
switch (errno) {
default:
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("bind failed: %s", g_strerror (errno)));
break;
}
return FALSE;
}
listen_error:
{
gst_tcp_socket_close (&src->server_sock_fd);
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not listen on server socket: %s", g_strerror (errno)));
return FALSE;
}
socket_pair:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
GST_ERROR_SYSTEM);
gst_tcp_socket_close (&src->server_sock_fd);
return FALSE;
}
}
