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timeoverlay: add buffer-count mode

Browse source 
This mode would allow to display the buffer
number received by the timeoverlay element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3827>
This commit is contained in:
Stéphane Cerveau 2023-01-27 17:39:51 +01:00 committed by GStreamer Marge Bot
parent 02371a317f
commit f6b2b716b2
3 changed files with 50 additions and 3 deletions
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10
subprojects/gst-plugins-base/docs/plugins/gst_plugins_cache.json
View file

@ -9392,6 +9392,16 @@
"desc": "reference-timestamp",
"name": "reference-timestamp",
"value": "5"
},
{
"desc": "buffer-count",
"name": "buffer-count",
"value": "6"
},
{
"desc": "buffer-offset",
"name": "buffer-offset",
"value": "7"
}
]
}

39
subprojects/gst-plugins-base/ext/pango/gsttimeoverlay.c
View file

@ -96,6 +96,21 @@ static void gst_time_overlay_get_property (GObject * object, guint prop_id,
* Since: 1.22
*/
/**
* GstTimeOverlayTimeLine::buffer-count:
*
* Overlay buffer count.
*
* Since: 1.24
*/
/**
* GstTimeOverlayTimeLine::buffer-offset:
*
* Overlay buffer offset count according to ts and framerate.
*
* Since: 1.24
*/
#define GST_TYPE_TIME_OVERLAY_TIME_LINE (gst_time_overlay_time_line_type())
static GType
gst_time_overlay_time_line_type (void)
@ -110,6 +125,10 @@ gst_time_overlay_time_line_type (void)
"elapsed-running-time", "elapsed-running-time"},
{GST_TIME_OVERLAY_TIME_LINE_REFERENCE_TIMESTAMP,
"reference-timestamp", "reference-timestamp"},
{GST_TIME_OVERLAY_TIME_LINE_BUFFER_COUNT,
"buffer-count", "buffer-count"},
{GST_TIME_OVERLAY_TIME_LINE_BUFFER_OFFSET,
"buffer-offset", "buffer-offset"},
{0, NULL, NULL},
};
@ -145,6 +164,7 @@ gst_time_overlay_get_text (GstBaseTextOverlay * overlay,
gchar *time_str, *txt, *ret;
overlay->need_render = TRUE;
self->show_buffer_count = FALSE;
time_line = g_atomic_int_get (&GST_TIME_OVERLAY_CAST (overlay)->time_line);
if (time_line == GST_TIME_OVERLAY_TIME_LINE_TIME_CODE) {
@ -160,7 +180,7 @@ gst_time_overlay_get_text (GstBaseTextOverlay * overlay,
GstClockTime ts, ts_buffer;
GstSegment *segment = &overlay->segment;
ts_buffer = GST_BUFFER_TIMESTAMP (video_frame);
ts = ts_buffer = GST_BUFFER_TIMESTAMP (video_frame);
if (!GST_CLOCK_TIME_IS_VALID (ts_buffer)) {
GST_DEBUG ("buffer without valid timestamp");
@ -203,13 +223,25 @@ gst_time_overlay_get_text (GstBaseTextOverlay * overlay,
break;
}
case GST_TIME_OVERLAY_TIME_LINE_BUFFER_COUNT:
self->show_buffer_count = TRUE;
self->buffer_count += 1;
break;
case GST_TIME_OVERLAY_TIME_LINE_BUFFER_OFFSET:
self->show_buffer_count = TRUE;
ts = gst_segment_to_running_time (segment, GST_FORMAT_TIME, ts_buffer);
self->buffer_count =
gst_util_uint64_scale (ts, overlay->info.fps_n,
overlay->info.fps_d * GST_SECOND);
break;
case GST_TIME_OVERLAY_TIME_LINE_BUFFER_TIME:
default:
ts = ts_buffer;
break;
}
if (self->show_times_as_dates) {
if (self->show_buffer_count) {
time_str = g_strdup_printf ("%u", self->buffer_count);
} else if (self->show_times_as_dates) {
GDateTime *datetime;
datetime =
@ -247,6 +279,7 @@ gst_time_overlay_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
self->first_running_time = GST_CLOCK_TIME_NONE;
self->buffer_count = 0;
break;
default:
break;

4
subprojects/gst-plugins-base/ext/pango/gsttimeoverlay.h
View file

@ -48,6 +48,8 @@ typedef enum {
GST_TIME_OVERLAY_TIME_LINE_TIME_CODE,
GST_TIME_OVERLAY_TIME_LINE_ELAPSED_RUNNING_TIME,
GST_TIME_OVERLAY_TIME_LINE_REFERENCE_TIMESTAMP,
GST_TIME_OVERLAY_TIME_LINE_BUFFER_COUNT,
GST_TIME_OVERLAY_TIME_LINE_BUFFER_OFFSET,
} GstTimeOverlayTimeLine;
/**
@ -63,6 +65,8 @@ struct _GstTimeOverlay {
/* For datetime mode */
gboolean show_times_as_dates;
guint buffer_count;
gboolean show_buffer_count;
gchar *datetime_format;
GDateTime *datetime_epoch;