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gst/tcp/gstmultifdsink.c: remove stupid example from docs - it should come with a simple

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Original commit message from CVS:

* gst/tcp/gstmultifdsink.c: (gst_multi_fd_sink_remove_client_link),
(gst_multi_fd_sink_new_client), (gst_multi_fd_sink_stop):
remove stupid example from docs - it should come with a simple
C program instead.
Clean up/fix docs
* tests/check/elements/multifdsink.c: (wait_bytes_served),
(fail_if_can_read), (GST_START_TEST),
(gst_multifdsink_create_streamheader), (multifdsink_suite):
add a test for changing streamheader which exposes a bug in
multifdsink
This commit is contained in:
Thomas Vander Stichele 2006-05-11 11:40:39 +00:00
parent 3467a9e403
commit 447aa12b5e
3 changed files with 219 additions and 68 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2006-05-11 Thomas Vander Stichele <thomas at apestaart dot org>
* gst/tcp/gstmultifdsink.c: (gst_multi_fd_sink_remove_client_link),
(gst_multi_fd_sink_new_client), (gst_multi_fd_sink_stop):
remove stupid example from docs - it should come with a simple
C program instead.
Clean up/fix docs
* tests/check/elements/multifdsink.c: (wait_bytes_served),
(fail_if_can_read), (GST_START_TEST),
(gst_multifdsink_create_streamheader), (multifdsink_suite):
add a test for changing streamheader which exposes a bug in
multifdsink
2006-05-11 Michael Smith <msmith@fluendo.com>
* ext/gnomevfs/gstgnomevfssrc.c: (gst_gnome_vfs_src_init),

37
gst/tcp/gstmultifdsink.c
View file

@ -1,6 +1,7 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
* Copyright (C) 2006 Wim Taymans <wim at fluendo dot com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -25,20 +26,19 @@
*
* <refsect2>
* <para>
* This plugin writes incoming data to a set of filedescriptors. The
* filedescriptors can be added to multifdsink by emiting the "add" signal. For
* each descriptor added
* the "client-added" signal will be called.
* This plugin writes incoming data to a set of file descriptors. The
* file descriptors can be added to multifdsink by emiting the "add" signal. For
* each descriptor added, the "client-added" signal will be called.
* </para>
* <para>
* Clients can be removed from multifdsink by emiting the "remove" signal. For
* each descriptor removed the "client-removed" signal will be called. The
* each descriptor removed, the "client-removed" signal will be called. The
* "client-removed" signal can also be fired when multifdsink decides that a
* client is not active anymore or, depending on the value of the
* "recover-policy" if the client is reading to slow.
* In all cases, multifdsink will never ever close a filedescriptor itself, the
* application has to do that itself in the "client-fd-removed" signal, for
* example.
* "recover-policy," if the client is reading to slow.
* In all cases, multifdsink will never ever close a file descriptor itself.
* The user of multifdsink is responsible for closing the file descriptor.
* This can for example be done in response to the "client-fd-removed" signal.
* Note that multifdsink still has a reference to the file descriptor when the
* "client-removed" signal is emited so that "get-stats" can be performed on
* the descriptor; It is therefore not allowed to close the file descriptor in
@ -70,7 +70,7 @@
* </para>
* <para>
* A client with a lag of at least "buffers-soft-max" enters the recovery
* procedure which is controled with the "recover-policy" property. A recover
* procedure which is controlled with the "recover-policy" property. A recover
* policy of NONE will do nothing, RESYNC_LATEST will send the most recently
* received buffer as the next buffer for the client, RESYNC_SOFT_LIMIT
* positions the client to the soft limit in the buffer queue and
@ -81,14 +81,6 @@
* multifdsink will synchronize on the clock before serving the buffers to the
* clients.
* </para>
* <para>
* Example pipeline:
* <programlisting>
* gst-launch -v videotestsrc ! multifdsink
* </programlisting>
* This pipeline will not do a lot since it is not possible from a gst-launch
* line to add filedescriptors to multifdsink.
* </para>
* </refsect2>
*
* Last reviewed on 2006-04-28 (0.10.7)
@ -807,7 +799,7 @@ gst_multi_fd_sink_remove_client_link (GstMultiFdSink * sink, GList * link)
/* lock again before we remove the client completely */
CLIENTS_LOCK (sink);
/* fd cannot be reused in the above signal callback so we can safely
/* fd cannot be reused in the above signal callback so we can safely
* remove it from the hashtable here */
if (!g_hash_table_remove (sink->fd_hash, &client->fd.fd)) {
GST_WARNING_OBJECT (sink,
@ -987,6 +979,11 @@ gst_multi_fd_sink_client_queue_buffer (GstMultiFdSink * sink,
return TRUE;
}
/* decide where in the current buffer queue this new client should start
* receiving buffers from
* If this returns -1, it means that we haven't found a good point to
* start streaming from yet, and this function should be called again later
* when more buffers have arrived */
static gint
gst_multi_fd_sink_new_client (GstMultiFdSink * sink, GstTCPClient * client)
{
@ -1001,7 +998,7 @@ gst_multi_fd_sink_new_client (GstMultiFdSink * sink, GstTCPClient * client)
"[fd %5d] new client, bufpos %d, waiting for keyframe", client->fd.fd,
client->bufpos);
/* the client is not yet alligned to a buffer */
/* the client is not yet aligned to a buffer */
if (client->bufpos < 0) {
result = -1;
} else {

237
tests/check/elements/multifdsink.c
View file

@ -65,6 +65,19 @@ wait_bytes_served (GstElement * sink, guint64 bytes)
}
}
static void
fail_if_can_read (char *msg, int fd)
{
long avail;
/* verify this hasn't triggered a write yet */
/* FIXME: possibly racy, since if it would write, we may not get it
* immediately ? */
fail_if (ioctl (fd, FIONREAD, &avail) < 0, "%s: could not ioctl", msg);
fail_if (avail > 0, "%s: has bytes available to read");
}
GST_START_TEST (test_no_clients)
{
GstElement *sink;
@ -116,20 +129,69 @@ GST_START_TEST (test_add_client)
GST_END_TEST;
static void
fail_unless_read (const char *msg, int fd, int size, const char *ref)
{
char data[size];
int nbytes;
#define fail_unless_read(msg,fd,size,ref) \
G_STMT_START { \
char data[size + 1]; \
int nbytes; \
\
GST_DEBUG ("%s: reading %d bytes", msg, size); \
nbytes = read (fd, data, size); \
data[size] = 0; \
GST_DEBUG ("%s: read %d bytes", msg, nbytes); \
fail_if (nbytes < size); \
fail_unless (memcmp (data, ref, size) == 0, \
"data read '%s' differs from '%s'", data, ref); \
} G_STMT_END;
GST_DEBUG ("%s: reading %d bytes", msg, size);
nbytes = read (fd, data, size);
GST_DEBUG ("%s: read %d bytes", msg, nbytes);
fail_if (nbytes < size);
fail_unless (memcmp (data, ref, size) == 0, "data read differs from '%s'",
ref);
/* from the given two data buffers, create two streamheader buffers and
* some caps that match it, and store them in the given pointers
* returns buffers and caps with a refcount of 1 */
static void
gst_multifdsink_create_streamheader (guint8 * data1,
guint8 * data2, GstBuffer ** hbuf1, GstBuffer ** hbuf2, GstCaps ** caps)
{
GValue array = { 0 };
GValue value = { 0 };
GstStructure *structure;
guint size1 = strlen (data1);
guint size2 = strlen (data2);
fail_if (hbuf1 == NULL);
fail_if (hbuf2 == NULL);
fail_if (caps == NULL);
/* create caps with streamheader, set the caps, and push the IN_CAPS
* buffers */
*hbuf1 = gst_buffer_new_and_alloc (size1);
GST_BUFFER_FLAG_SET (*hbuf1, GST_BUFFER_FLAG_IN_CAPS);
memcpy (GST_BUFFER_DATA (*hbuf1), data1, size1);
*hbuf2 = gst_buffer_new_and_alloc (size2);
GST_BUFFER_FLAG_SET (*hbuf2, GST_BUFFER_FLAG_IN_CAPS);
memcpy (GST_BUFFER_DATA (*hbuf2), data2, size2);
/* we want to keep them around for the tests */
gst_buffer_ref (*hbuf1);
gst_buffer_ref (*hbuf2);
g_value_init (&array, GST_TYPE_ARRAY);
g_value_init (&value, GST_TYPE_BUFFER);
gst_value_set_buffer (&value, *hbuf1);
gst_value_array_append_value (&array, &value);
g_value_unset (&value);
g_value_init (&value, GST_TYPE_BUFFER);
gst_value_set_buffer (&value, *hbuf2);
gst_value_array_append_value (&array, &value);
g_value_unset (&value);
*caps = gst_caps_from_string ("application/x-gst-check");
structure = gst_caps_get_structure (*caps, 0);
gst_structure_set_value (structure, "streamheader", &array);
g_value_unset (&array);
}
/* this test:
* - adds a first client
* - sets streamheader caps on the pad
@ -137,7 +199,8 @@ fail_unless_read (const char *msg, int fd, int size, const char *ref)
* - pushes a buffer
* - verifies that the client received all the data correctly
* - adds a second client
* - verifies that this second client receives the streamheader caps too
* - verifies that this second client receives the streamheader caps too, plus
* - the new buffer
*/
GST_START_TEST (test_streamheader)
{
@ -147,8 +210,6 @@ GST_START_TEST (test_streamheader)
GstStructure *structure;
int pfd1[2], pfd2[2];
guint8 data[12];
GValue array = { 0 };
GValue value = { 0 };
guint64 bytes_served;
int avail;
@ -164,44 +225,15 @@ GST_START_TEST (test_streamheader)
/* create caps with streamheader, set the caps, and push the IN_CAPS
* buffers */
hbuf1 = gst_buffer_new_and_alloc (4);
GST_BUFFER_FLAG_SET (hbuf1, GST_BUFFER_FLAG_IN_CAPS);
memcpy (GST_BUFFER_DATA (hbuf1), "babe", 4);
hbuf2 = gst_buffer_new_and_alloc (8);
GST_BUFFER_FLAG_SET (hbuf2, GST_BUFFER_FLAG_IN_CAPS);
memcpy (GST_BUFFER_DATA (hbuf2), "deadbeef", 8);
/* we want to keep them around for the tests */
gst_buffer_ref (hbuf1);
gst_buffer_ref (hbuf2);
g_value_init (&array, GST_TYPE_ARRAY);
g_value_init (&value, GST_TYPE_BUFFER);
gst_value_set_buffer (&value, hbuf1);
gst_value_array_append_value (&array, &value);
g_value_unset (&value);
g_value_init (&value, GST_TYPE_BUFFER);
gst_value_set_buffer (&value, hbuf2);
gst_value_array_append_value (&array, &value);
g_value_unset (&value);
caps = gst_caps_from_string ("application/x-gst-check");
structure = gst_caps_get_structure (caps, 0);
gst_structure_set_value (structure, "streamheader", &array);
g_value_unset (&array);
gst_multifdsink_create_streamheader ("babe", "deadbeef", &hbuf1, &hbuf2,
&caps);
fail_unless (gst_pad_set_caps (mysrcpad, caps));
gst_caps_unref (caps);
fail_unless (gst_pad_push (mysrcpad, hbuf1) == GST_FLOW_OK);
fail_unless (gst_pad_push (mysrcpad, hbuf2) == GST_FLOW_OK);
/* verify this hasn't triggered a write yet */
/* FIXME: possibly racy, since if it would write, we may not get it
* immediately ? */
fail_if (ioctl (pfd1[0], FIONREAD, &avail) < 0);
fail_if (avail > 0);
fail_if_can_read ("first client", pfd1[0]);
/* push a non-IN_CAPS buffer, this should trigger the client receiving the
* first three buffers */
@ -216,8 +248,7 @@ GST_START_TEST (test_streamheader)
/* now add the second client */
g_signal_emit_by_name (sink, "add", pfd2[1]);
fail_if (ioctl (pfd2[0], FIONREAD, &avail) < 0);
fail_if (avail > 0);
fail_if_can_read ("second client", pfd2[0]);
/* now push another buffer, which will trigger streamheader for second
* client */
@ -242,6 +273,115 @@ GST_START_TEST (test_streamheader)
GST_END_TEST;
/* this tests changing of streamheaders
* - set streamheader caps on the pad
* - pushes the IN_CAPS buffers
* - pushes a buffer
* - add a first client
* - verifies that this first client receives the first streamheader caps,
* plus a new buffer
* - change streamheader caps
* - verify that the first client receives the new streamheader buffers as well
*/
GST_START_TEST (test_change_streamheader)
{
GstElement *sink;
GstBuffer *hbuf1, *hbuf2, *buf;
GstCaps *caps;
GstStructure *structure;
int pfd1[2], pfd2[2];
guint8 data[12];
GValue array = { 0 };
GValue value = { 0 };
guint64 bytes_served;
int avail;
sink = setup_multifdsink ();
fail_if (pipe (pfd1) == -1);
fail_if (pipe (pfd2) == -1);
ASSERT_SET_STATE (sink, GST_STATE_PLAYING, GST_STATE_CHANGE_ASYNC);
/* create caps with streamheader, set the caps, and push the IN_CAPS
* buffers */
gst_multifdsink_create_streamheader ("babe", "deadbeef", &hbuf1, &hbuf2,
&caps);
fail_unless (gst_pad_set_caps (mysrcpad, caps));
gst_caps_unref (caps);
fail_unless (gst_pad_push (mysrcpad, hbuf1) == GST_FLOW_OK);
fail_unless (gst_pad_push (mysrcpad, hbuf2) == GST_FLOW_OK);
/* add the first client */
g_signal_emit_by_name (sink, "add", pfd1[1]);
/* verify this hasn't triggered a write yet */
/* FIXME: possibly racy, since if it would write, we may not get it
* immediately ? */
fail_if_can_read ("first client, no buffer", pfd1[0]);
/* now push a buffer and read */
buf = gst_buffer_new_and_alloc (4);
memcpy (GST_BUFFER_DATA (buf), "f00d", 4);
gst_pad_push (mysrcpad, buf);
fail_unless_read ("change: first client", pfd1[0], 4, "babe");
fail_unless_read ("change: first client", pfd1[0], 8, "deadbeef");
fail_unless_read ("change: first client", pfd1[0], 4, "f00d");
wait_bytes_served (sink, 16);
/* now add the second client */
g_signal_emit_by_name (sink, "add", pfd2[1]);
fail_if_can_read ("second client, no buffer", pfd2[0]);
/* change the streamheader */
gst_buffer_unref (hbuf1);
gst_buffer_unref (hbuf2);
gst_multifdsink_create_streamheader ("beef", "deadbabe", &hbuf1, &hbuf2,
&caps);
fail_unless (gst_pad_set_caps (mysrcpad, caps));
gst_caps_unref (caps);
fail_unless (gst_pad_push (mysrcpad, hbuf1) == GST_FLOW_OK);
fail_unless (gst_pad_push (mysrcpad, hbuf2) == GST_FLOW_OK);
/* verify neither client has new data available to read */
fail_if_can_read ("first client, changed streamheader", pfd1[0]);
fail_if_can_read ("second client, changed streamheader", pfd2[0]);
/* now push another buffer, which will trigger streamheader for second
* client, but should also send new streamheaders to first client */
buf = gst_buffer_new_and_alloc (4);
memcpy (GST_BUFFER_DATA (buf), "deaf", 4);
gst_pad_push (mysrcpad, buf);
/* FIXME: here's a bug - the first client does not get new streamheaders */
fail_unless_read ("first client", pfd1[0], 4, "deaf");
/* new streamheader data */
fail_unless_read ("second client", pfd2[0], 4, "beef");
fail_unless_read ("second client", pfd2[0], 8, "deadbabe");
/* we missed the f00d buffer */
fail_unless_read ("second client", pfd2[0], 4, "deaf");
wait_bytes_served (sink, 36);
gst_buffer_unref (hbuf1);
gst_buffer_unref (hbuf2);
GST_DEBUG ("cleaning up multifdsink");
ASSERT_SET_STATE (sink, GST_STATE_NULL, GST_STATE_CHANGE_SUCCESS);
cleanup_multifdsink (sink);
}
GST_END_TEST;
/* FIXME: add test simulating chained oggs where:
* sync-method is burst-on-connect
* (when multifdsink actually does burst-on-connect based on byte size, not
"last keyframe" which any frame for audio :))
* an old client still needs to read from before the new streamheaders
* a new client gets the new streamheaders
*/
Suite *
multifdsink_suite (void)
@ -253,6 +393,7 @@ multifdsink_suite (void)
tcase_add_test (tc_chain, test_no_clients);
tcase_add_test (tc_chain, test_add_client);
tcase_add_test (tc_chain, test_streamheader);
tcase_add_test (tc_chain, test_change_streamheader);
return s;
}