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unixfdsink: Take segment into account when converting timestamps

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Also rename `calculate_timestamp()` to `to_monotonic()` and
`from_monotonic()` which better describe what it does.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6747>
This commit is contained in:
Xavier Claessens 2024-04-03 10:28:28 -04:00 committed by Backport Bot
parent 5593a3c698
commit e62adb4d12
3 changed files with 117 additions and 10 deletions
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33
subprojects/gst-plugins-bad/gst/unixfd/gstunixfdsink.c
View file

@ -428,12 +428,22 @@ send_command_to_all (GstUnixFdSink * self, CommandType type, GUnixFDList * fds,
}
static GstClockTime
calculate_timestamp (GstClockTime timestamp, GstClockTime base_time,
GstClockTime latency, GstClockTimeDiff clock_diff)
to_monotonic (GstClockTime timestamp, const GstSegment * segment,
GstClockTime base_time, GstClockTime latency, GstClockTimeDiff clock_diff)
{
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
/* Convert running time to pipeline clock time */
timestamp += base_time;
gint res =
gst_segment_to_running_time_full (segment, GST_FORMAT_TIME, timestamp,
&timestamp);
if (res == 0)
return GST_CLOCK_TIME_NONE;
else if (res > 0)
timestamp += base_time;
else if (base_time > timestamp)
timestamp = base_time - timestamp;
else
timestamp = 0;
if (GST_CLOCK_TIME_IS_VALID (latency))
timestamp += latency;
/* Convert to system monotonic clock time */
@ -485,11 +495,11 @@ gst_unix_fd_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
* id so we know which buffer to unref. */
new_buffer->id = (guint64) buffer;
new_buffer->pts =
calculate_timestamp (GST_BUFFER_PTS (buffer), base_time, latency,
clock_diff);
to_monotonic (GST_BUFFER_PTS (buffer),
&GST_BASE_SINK_CAST (self)->segment, base_time, latency, clock_diff);
new_buffer->dts =
calculate_timestamp (GST_BUFFER_DTS (buffer), base_time, latency,
clock_diff);
to_monotonic (GST_BUFFER_DTS (buffer),
&GST_BASE_SINK_CAST (self)->segment, base_time, latency, clock_diff);
new_buffer->duration = GST_BUFFER_DURATION (buffer);
new_buffer->offset = GST_BUFFER_OFFSET (buffer);
new_buffer->offset_end = GST_BUFFER_OFFSET_END (buffer);
@ -498,6 +508,15 @@ gst_unix_fd_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
new_buffer->n_memory = n_memory;
new_buffer->n_meta = n_meta;
if ((GST_BUFFER_PTS_IS_VALID (buffer)
&& !GST_CLOCK_TIME_IS_VALID (new_buffer->pts))
|| (GST_BUFFER_DTS_IS_VALID (buffer)
&& !GST_CLOCK_TIME_IS_VALID (new_buffer->dts))) {
GST_ERROR_OBJECT (self,
"Could not convert buffer timestamp to running time");
return GST_FLOW_ERROR;
}
gboolean dmabuf_count = 0;
GUnixFDList *fds = g_unix_fd_list_new ();
for (int i = 0; i < n_memory; i++) {

6
subprojects/gst-plugins-bad/gst/unixfd/gstunixfdsrc.c
View file

@ -282,7 +282,7 @@ gst_unix_fd_src_unlock_stop (GstBaseSrc * bsrc)
}
static GstClockTime
calculate_timestamp (GstClockTime timestamp, GstClockTime base_time,
from_monotonic (GstClockTime timestamp, GstClockTime base_time,
GstClockTimeDiff clock_diff)
{
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
@ -369,9 +369,9 @@ again:
}
GST_BUFFER_PTS (*outbuf) =
calculate_timestamp (new_buffer->pts, base_time, clock_diff);
from_monotonic (new_buffer->pts, base_time, clock_diff);
GST_BUFFER_DTS (*outbuf) =
calculate_timestamp (new_buffer->dts, base_time, clock_diff);
from_monotonic (new_buffer->dts, base_time, clock_diff);
GST_BUFFER_DURATION (*outbuf) = new_buffer->duration;
GST_BUFFER_OFFSET (*outbuf) = new_buffer->offset;
GST_BUFFER_OFFSET_END (*outbuf) = new_buffer->offset_end;

88
subprojects/gst-plugins-bad/tests/check/elements/unixfd.c
View file

@ -25,6 +25,7 @@
#include <gst/gst.h>
#include <gst/check/gstcheck.h>
#include <gst/app/app.h>
#include <glib/gstdio.h>
static void
@ -134,6 +135,92 @@ GST_START_TEST (test_unixfd_videotestsrc)
GST_END_TEST;
GST_START_TEST (test_unixfd_segment)
{
GError *error = NULL;
/* Ensure we don't have socket from previous failed test */
gchar *socket_path =
g_strdup_printf ("%s/unixfd-test-socket", g_get_user_runtime_dir ());
if (g_file_test (socket_path, G_FILE_TEST_EXISTS)) {
g_unlink (socket_path);
}
GstCaps *caps = gst_caps_new_empty_simple ("video/x-raw");
/* Setup service */
gchar *pipeline_str =
g_strdup_printf
("appsrc name=src format=time handle-segment-change=true ! unixfdsink socket-path=%s sync=false async=false",
socket_path);
GstElement *pipeline_service = gst_parse_launch (pipeline_str, &error);
g_assert_no_error (error);
fail_unless (gst_element_set_state (pipeline_service,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS);
GstElement *appsrc = gst_bin_get_by_name (GST_BIN (pipeline_service), "src");
gst_object_unref (appsrc);
g_free (pipeline_str);
/* Setup client */
pipeline_str =
g_strdup_printf
("unixfdsrc socket-path=%s ! appsink name=sink sync=false async=false",
socket_path);
GstElement *pipeline_client = gst_parse_launch (pipeline_str, &error);
g_assert_no_error (error);
fail_unless (gst_element_set_state (pipeline_client,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS);
GstElement *appsink = gst_bin_get_by_name (GST_BIN (pipeline_client), "sink");
gst_object_unref (appsink);
g_free (pipeline_str);
/* Send a buffer with PTS=30s */
GstSegment segment;
gst_segment_init (&segment, GST_FORMAT_TIME);
GstBuffer *buf = gst_buffer_new ();
GST_BUFFER_PTS (buf) = 30 * GST_SECOND;
GstSample *sample = gst_sample_new (buf, caps, &segment, NULL);
gst_app_src_push_sample (GST_APP_SRC (appsrc), sample);
gst_sample_unref (sample);
gst_buffer_unref (buf);
/* Wait for it */
sample = gst_app_sink_pull_sample (GST_APP_SINK (appsink));
buf = gst_sample_get_buffer (sample);
GstClockTime first_pts = GST_BUFFER_PTS (buf);
gst_sample_unref (sample);
/* Send a buffer with PTS=1s but with 30s offset in the segment */
segment.base = 30 * GST_SECOND;
buf = gst_buffer_new ();
GST_BUFFER_PTS (buf) = 1 * GST_SECOND;
sample = gst_sample_new (buf, caps, &segment, NULL);
gst_app_src_push_sample (GST_APP_SRC (appsrc), sample);
gst_sample_unref (sample);
gst_buffer_unref (buf);
/* Wait for it */
sample = gst_app_sink_pull_sample (GST_APP_SINK (appsink));
buf = gst_sample_get_buffer (sample);
GstClockTime second_pts = GST_BUFFER_PTS (buf);
gst_sample_unref (sample);
/* They should be 1s appart */
fail_unless_equals_uint64 (second_pts - first_pts, GST_SECOND);
/* Teardown */
fail_unless (gst_element_set_state (pipeline_client,
GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS);
fail_unless (gst_element_set_state (pipeline_service,
GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS);
gst_object_unref (pipeline_service);
gst_object_unref (pipeline_client);
g_free (socket_path);
gst_caps_unref (caps);
}
GST_END_TEST;
static Suite *
unixfd_suite (void)
{
@ -142,6 +229,7 @@ unixfd_suite (void)
suite_add_tcase (s, tc);
tcase_add_test (tc, test_unixfd_videotestsrc);
tcase_add_test (tc, test_unixfd_segment);
return s;
}