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buffer: allow building into custom memory

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Make it possible to pass custom memory to the builder so that it can
construct packets directly into specified memory and avoid allocs.
Remove GError and GSocketControlMessage in the buffer API to make it
possible to use other (rt-safe) API later.
This commit is contained in:
Wim Taymans 2016-05-09 18:48:18 +02:00
parent 91385a782e
commit c67d3d7f04
9 changed files with 240 additions and 175 deletions
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37
pinos/gst/gstpinospay.c
View file

@ -214,7 +214,7 @@ client_buffer_received (GstPinosPay *pay, GstBuffer *buffer,
}
gst_buffer_map (buffer, &info, GST_MAP_READ);
pinos_buffer_init_data (&pbuf, info.data, info.size, NULL);
pinos_buffer_init_data (&pbuf, info.data, info.size, NULL, 0);
pinos_buffer_iter_init (&it, &pbuf);
while (pinos_buffer_iter_next (&it)) {
switch (pinos_buffer_iter_get_type (&it)) {
@ -266,7 +266,7 @@ client_buffer_received (GstPinosPay *pay, GstBuffer *buffer,
if (have_out) {
pinos_buffer_builder_end (&b, &pbuf);
data = pinos_buffer_steal (&pbuf, &size, NULL);
data = pinos_buffer_steal_data (&pbuf, &size);
outbuf = gst_buffer_new_wrapped (data, size);
ev = gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM,
@ -379,7 +379,7 @@ release_fds (GstPinosPay *pay, GstBuffer *buffer)
pinos_buffer_builder_end (&b, &pbuf);
g_array_unref (fdids);
data = pinos_buffer_steal (&pbuf, &size, NULL);
data = pinos_buffer_steal_data (&pbuf, &size);
outbuf = gst_buffer_new_wrapped (data, size);
ev = gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM,
@ -401,7 +401,7 @@ gst_pinos_pay_chain_pinos (GstPinosPay *pay, GstBuffer * buffer)
GArray *fdids = NULL;
gst_buffer_map (buffer, &info, GST_MAP_READ);
pinos_buffer_init_data (&pbuf, info.data, info.size, NULL);
pinos_buffer_init_data (&pbuf, info.data, info.size, NULL, 0);
pinos_buffer_iter_init (&it, &pbuf);
while (pinos_buffer_iter_next (&it)) {
switch (pinos_buffer_iter_get_type (&it)) {
@ -467,6 +467,7 @@ gst_pinos_pay_chain_other (GstPinosPay *pay, GstBuffer * buffer)
gpointer data;
GSocketControlMessage *msg;
gboolean tmpfile = TRUE;
gint *fds, n_fds, i;
hdr.flags = 0;
hdr.seq = GST_BUFFER_OFFSET (buffer);
@ -476,20 +477,19 @@ gst_pinos_pay_chain_other (GstPinosPay *pay, GstBuffer * buffer)
pinos_buffer_builder_init (&builder);
pinos_buffer_builder_add_header (&builder, &hdr);
msg = g_unix_fd_message_new ();
fdmem = gst_pinos_pay_get_fd_memory (pay, buffer, &tmpfile);
p.fd_index = pinos_buffer_builder_add_fd (&builder, gst_fd_memory_get_fd (fdmem), &err);
if (p.fd_index == -1)
goto add_fd_failed;
p.fd_index = pinos_buffer_builder_add_fd (&builder, gst_fd_memory_get_fd (fdmem));
p.id = pinos_fd_manager_get_id (pay->fdmanager);
p.offset = fdmem->offset;
p.size = fdmem->size;
pinos_buffer_builder_add_fd_payload (&builder, &p);
pinos_buffer_builder_end (&builder, &pbuf);
gst_memory_unref(fdmem);
fdmem = NULL;
data = pinos_buffer_steal (&pbuf, &size, &msg);
data = pinos_buffer_steal_data (&pbuf, &size);
fds = pinos_buffer_steal_fds (&pbuf, &n_fds);
outbuf = gst_buffer_new_wrapped (data, size);
GST_BUFFER_PTS (outbuf) = GST_BUFFER_PTS (buffer);
@ -498,6 +498,18 @@ gst_pinos_pay_chain_other (GstPinosPay *pay, GstBuffer * buffer)
GST_BUFFER_OFFSET (outbuf) = GST_BUFFER_OFFSET (buffer);
GST_BUFFER_OFFSET_END (outbuf) = GST_BUFFER_OFFSET_END (buffer);
msg = g_unix_fd_message_new ();
for (i = 0; i < n_fds; i++) {
if (!g_unix_fd_message_append_fd (G_UNIX_FD_MESSAGE (msg), fds[i], &err))
goto add_fd_failed;
}
gst_buffer_add_net_control_message_meta (outbuf, msg);
g_object_unref (msg);
g_free (fds);
gst_memory_unref(fdmem);
fdmem = NULL;
if (!tmpfile) {
GArray *fdids;
/* we are using the original buffer fd in the control message, we need
@ -516,16 +528,13 @@ gst_pinos_pay_chain_other (GstPinosPay *pay, GstBuffer * buffer)
gst_buffer_unref (buffer);
}
gst_buffer_add_net_control_message_meta (outbuf, msg);
g_object_unref (msg);
return gst_pad_push (pay->srcpad, outbuf);
/* ERRORS */
add_fd_failed:
{
GST_WARNING_OBJECT (pay, "Adding fd failed: %s", err->message);
gst_memory_unref(fdmem);
gst_object_unref(msg);
g_clear_error (&err);
return GST_FLOW_ERROR;