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appsrc: Add new max-buffers / max-time / current-level-buffers / current-level-time properties

Browse source 
These work the same way as the corresponding properties on queue and
allow to control the internal buffer size of the appsrc in a more
flexible way.

Unlike in queue the max-buffers and max-time properties are 0 (i.e.
disabled) by default for backwards compatibility reasons.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1133>
This commit is contained in:
Sebastian Dröge 2021-04-30 19:22:46 +03:00 committed by GStreamer Marge Bot
parent ca7a964fb1
commit d987ec21f2
3 changed files with 575 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

56
docs/plugins/gst_plugins_cache.json
View file

@ -452,6 +452,20 @@
"type": "GstCaps",
"writable": true
},
"current-level-buffers": {
"blurb": "The number of currently queued buffers",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": false
},
"current-level-bytes": {
"blurb": "The number of currently queued bytes",
"conditionally-available": false,
@ -466,6 +480,20 @@
"type": "guint64",
"writable": false
},
"current-level-time": {
"blurb": "The amount of currently queued time",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": false
},
"duration": {
"blurb": "The duration of the data stream in nanoseconds (GST_CLOCK_TIME_NONE if unknown)",
"conditionally-available": false,
@ -528,6 +556,20 @@
"type": "gboolean",
"writable": true
},
"max-buffers": {
"blurb": "The maximum number of buffers to queue internally (0 = unlimited)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": true
},
"max-bytes": {
"blurb": "The maximum number of bytes to queue internally (0 = unlimited)",
"conditionally-available": false,
@ -556,6 +598,20 @@
"type": "gint64",
"writable": true
},
"max-time": {
"blurb": "The maximum amount of time to queue internally (0 = unlimited)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "18446744073709551615",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint64",
"writable": true
},
"min-latency": {
"blurb": "The minimum latency (-1 = default)",
"conditionally-available": false,

529
gst-libs/gst/app/gstappsrc.c
View file

@ -46,11 +46,12 @@
* streaming thread. It is important to note that data transport will not happen
* from the thread that performed the push-buffer call.
*
* The "max-bytes" property controls how much data can be queued in appsrc
* before appsrc considers the queue full. A filled internal queue will always
* signal the "enough-data" signal, which signals the application that it should
* stop pushing data into appsrc. The "block" property will cause appsrc to
* block the push-buffer method until free data becomes available again.
* The "max-bytes", "max-buffers" and "max-time" properties control how much
* data can be queued in appsrc before appsrc considers the queue full. A
* filled internal queue will always signal the "enough-data" signal, which
* signals the application that it should stop pushing data into appsrc. The
* "block" property will cause appsrc to block the push-buffer method until
* free data becomes available again.
*
* When the internal queue is running out of data, the "need-data" signal is
* emitted, which signals the application that it should start pushing more data
@ -146,14 +147,18 @@ struct _GstAppSrcPrivate
GstCaps *last_caps;
GstCaps *current_caps;
/* last segment received on the input */
GstSegment last_segment;
/* currently configured segment for the output */
GstSegment current_segment;
/* queue up a segment event based on last_segment before
* the next buffer of buffer list */
gboolean pending_custom_segment;
gint64 size;
GstClockTime duration;
GstAppStreamType stream_type;
guint64 max_bytes;
guint64 max_bytes, max_buffers, max_time;
GstFormat format;
gboolean block;
gchar *uri;
@ -161,7 +166,11 @@ struct _GstAppSrcPrivate
gboolean flushing;
gboolean started;
gboolean is_eos;
guint64 queued_bytes;
guint64 queued_bytes, queued_buffers;
/* Used to calculate the current time level */
GstClockTime last_in_running_time, last_out_running_time;
/* Updated based on the above whenever they change */
GstClockTime queued_time;
guint64 offset;
GstAppStreamType current_type;
@ -196,6 +205,8 @@ enum
#define DEFAULT_PROP_SIZE -1
#define DEFAULT_PROP_STREAM_TYPE GST_APP_STREAM_TYPE_STREAM
#define DEFAULT_PROP_MAX_BYTES 200000
#define DEFAULT_PROP_MAX_BUFFERS 0
#define DEFAULT_PROP_MAX_TIME (0 * GST_SECOND)
#define DEFAULT_PROP_FORMAT GST_FORMAT_BYTES
#define DEFAULT_PROP_BLOCK FALSE
#define DEFAULT_PROP_IS_LIVE FALSE
@ -204,6 +215,8 @@ enum
#define DEFAULT_PROP_EMIT_SIGNALS TRUE
#define DEFAULT_PROP_MIN_PERCENT 0
#define DEFAULT_PROP_CURRENT_LEVEL_BYTES 0
#define DEFAULT_PROP_CURRENT_LEVEL_BUFFERS 0
#define DEFAULT_PROP_CURRENT_LEVEL_TIME 0
#define DEFAULT_PROP_DURATION GST_CLOCK_TIME_NONE
#define DEFAULT_PROP_HANDLE_SEGMENT_CHANGE FALSE
@ -214,6 +227,8 @@ enum
PROP_SIZE,
PROP_STREAM_TYPE,
PROP_MAX_BYTES,
PROP_MAX_BUFFERS,
PROP_MAX_TIME,
PROP_FORMAT,
PROP_BLOCK,
PROP_IS_LIVE,
@ -222,6 +237,8 @@ enum
PROP_EMIT_SIGNALS,
PROP_MIN_PERCENT,
PROP_CURRENT_LEVEL_BYTES,
PROP_CURRENT_LEVEL_BUFFERS,
PROP_CURRENT_LEVEL_TIME,
PROP_DURATION,
PROP_HANDLE_SEGMENT_CHANGE,
PROP_LAST
@ -347,6 +364,37 @@ gst_app_src_class_init (GstAppSrcClass * klass)
"The maximum number of bytes to queue internally (0 = unlimited)",
0, G_MAXUINT64, DEFAULT_PROP_MAX_BYTES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstAppSrc:max-buffers:
*
* The maximum amount of buffers that can be queued internally.
* After the maximum amount of buffers are queued, appsrc will emit the
* "enough-data" signal.
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_MAX_BUFFERS,
g_param_spec_uint64 ("max-buffers", "Max buffers",
"The maximum number of buffers to queue internally (0 = unlimited)",
0, G_MAXUINT64, DEFAULT_PROP_MAX_BUFFERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstAppSrc:max-time:
*
* The maximum amount of time that can be queued internally.
* After the maximum amount of time are queued, appsrc will emit the
* "enough-data" signal.
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_MAX_TIME,
g_param_spec_uint64 ("max-time", "Max time",
"The maximum amount of time to queue internally (0 = unlimited)",
0, G_MAXUINT64, DEFAULT_PROP_MAX_TIME,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstAppSrc:block:
*
@ -430,6 +478,32 @@ gst_app_src_class_init (GstAppSrcClass * klass)
0, G_MAXUINT64, DEFAULT_PROP_CURRENT_LEVEL_BYTES,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstAppSrc:current-level-buffers:
*
* The number of currently queued buffers inside appsrc.
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_CURRENT_LEVEL_BUFFERS,
g_param_spec_uint64 ("current-level-buffers", "Current Level Buffers",
"The number of currently queued buffers",
0, G_MAXUINT64, DEFAULT_PROP_CURRENT_LEVEL_BUFFERS,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstAppSrc:current-level-time:
*
* The amount of currently queued time inside appsrc.
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_CURRENT_LEVEL_TIME,
g_param_spec_uint64 ("current-level-time", "Current Level Time",
"The amount of currently queued time",
0, G_MAXUINT64, DEFAULT_PROP_CURRENT_LEVEL_TIME,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstAppSrc:duration:
*
@ -636,6 +710,8 @@ gst_app_src_init (GstAppSrc * appsrc)
priv->duration = DEFAULT_PROP_DURATION;
priv->stream_type = DEFAULT_PROP_STREAM_TYPE;
priv->max_bytes = DEFAULT_PROP_MAX_BYTES;
priv->max_buffers = DEFAULT_PROP_MAX_BUFFERS;
priv->max_time = DEFAULT_PROP_MAX_TIME;
priv->format = DEFAULT_PROP_FORMAT;
priv->block = DEFAULT_PROP_BLOCK;
priv->min_latency = DEFAULT_PROP_MIN_LATENCY;
@ -670,6 +746,10 @@ gst_app_src_flush_queued (GstAppSrc * src, gboolean retain_last_caps)
}
priv->queued_bytes = 0;
priv->queued_buffers = 0;
priv->queued_time = 0;
priv->last_in_running_time = GST_CLOCK_TIME_NONE;
priv->last_out_running_time = GST_CLOCK_TIME_NONE;
}
static void
@ -762,6 +842,12 @@ gst_app_src_set_property (GObject * object, guint prop_id,
case PROP_MAX_BYTES:
gst_app_src_set_max_bytes (appsrc, g_value_get_uint64 (value));
break;
case PROP_MAX_BUFFERS:
gst_app_src_set_max_buffers (appsrc, g_value_get_uint64 (value));
break;
case PROP_MAX_TIME:
gst_app_src_set_max_time (appsrc, g_value_get_uint64 (value));
break;
case PROP_FORMAT:
priv->format = g_value_get_enum (value);
break;
@ -818,6 +904,12 @@ gst_app_src_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_MAX_BYTES:
g_value_set_uint64 (value, gst_app_src_get_max_bytes (appsrc));
break;
case PROP_MAX_BUFFERS:
g_value_set_uint64 (value, gst_app_src_get_max_buffers (appsrc));
break;
case PROP_MAX_TIME:
g_value_set_uint64 (value, gst_app_src_get_max_time (appsrc));
break;
case PROP_FORMAT:
g_value_set_enum (value, priv->format);
break;
@ -852,6 +944,13 @@ gst_app_src_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_CURRENT_LEVEL_BYTES:
g_value_set_uint64 (value, gst_app_src_get_current_level_bytes (appsrc));
break;
case PROP_CURRENT_LEVEL_BUFFERS:
g_value_set_uint64 (value,
gst_app_src_get_current_level_buffers (appsrc));
break;
case PROP_CURRENT_LEVEL_TIME:
g_value_set_uint64 (value, gst_app_src_get_current_level_time (appsrc));
break;
case PROP_DURATION:
g_value_set_uint64 (value, gst_app_src_get_duration (appsrc));
break;
@ -1204,6 +1303,200 @@ gst_app_src_negotiate (GstBaseSrc * basesrc)
return result;
}
/* Update the currently queued bytes/buffers/time information for the item
* that was just removed from the queue.
*
* If update_offset is set, additionally the offset of the source will be
* moved forward accordingly as if that many bytes were output.
*/
static void
gst_app_src_update_queued_pop (GstAppSrc * appsrc, GstMiniObject * item,
gboolean update_offset)
{
GstAppSrcPrivate *priv = appsrc->priv;
guint buf_size = 0;
guint n_buffers = 0;
GstClockTime end_buffer_ts = GST_CLOCK_TIME_NONE;
if (GST_IS_BUFFER (item)) {
GstBuffer *buf = GST_BUFFER_CAST (item);
buf_size = gst_buffer_get_size (buf);
n_buffers = 1;
end_buffer_ts = GST_BUFFER_DTS_OR_PTS (buf);
if (end_buffer_ts != GST_CLOCK_TIME_NONE
&& GST_BUFFER_DURATION_IS_VALID (buf))
end_buffer_ts += GST_BUFFER_DURATION (buf);
GST_LOG_OBJECT (appsrc, "have buffer %p of size %u", buf, buf_size);
} else if (GST_IS_BUFFER_LIST (item)) {
GstBufferList *buffer_list = GST_BUFFER_LIST_CAST (item);
guint i;
n_buffers = gst_buffer_list_length (buffer_list);
for (i = 0; i < n_buffers; i++) {
GstBuffer *tmp = gst_buffer_list_get (buffer_list, i);
GstClockTime ts = GST_BUFFER_DTS_OR_PTS (tmp);
buf_size += gst_buffer_get_size (tmp);
/* Update to the last buffer's timestamp that is known */
if (ts != GST_CLOCK_TIME_NONE) {
end_buffer_ts = ts;
if (GST_BUFFER_DURATION_IS_VALID (tmp))
end_buffer_ts += GST_BUFFER_DURATION (tmp);
}
}
}
priv->queued_bytes -= buf_size;
priv->queued_buffers -= n_buffers;
/* Update time level if working on a TIME segment */
if (priv->current_segment.format == GST_FORMAT_TIME
&& end_buffer_ts != GST_CLOCK_TIME_NONE) {
/* Clip to the current segment boundaries */
if (priv->current_segment.stop != -1
&& end_buffer_ts > priv->current_segment.stop)
end_buffer_ts = priv->current_segment.stop;
else if (priv->current_segment.start > end_buffer_ts)
end_buffer_ts = priv->current_segment.start;
priv->last_out_running_time =
gst_segment_to_running_time (&priv->current_segment,
GST_FORMAT_TIME, end_buffer_ts);
GST_TRACE_OBJECT (appsrc,
"Last in running time %" GST_TIME_FORMAT ", last out running time %"
GST_TIME_FORMAT, GST_TIME_ARGS (priv->last_in_running_time),
GST_TIME_ARGS (priv->last_out_running_time));
/* If timestamps on both sides are known, calculate the current
* fill level in time and consider the queue empty if the output
* running time is lower than the input one (i.e. some kind of reset
* has happened).
*/
if (priv->last_out_running_time != GST_CLOCK_TIME_NONE
&& priv->last_in_running_time != GST_CLOCK_TIME_NONE) {
if (priv->last_out_running_time > priv->last_in_running_time) {
priv->queued_time = 0;
} else {
priv->queued_time =
priv->last_in_running_time - priv->last_out_running_time;
}
}
}
GST_DEBUG_OBJECT (appsrc,
"Currently queued: %" G_GUINT64_FORMAT " bytes, %" G_GUINT64_FORMAT
" buffers, %" GST_TIME_FORMAT, priv->queued_bytes,
priv->queued_buffers, GST_TIME_ARGS (priv->queued_time));
/* only update the offset when in random_access mode and when requested by
* the caller, i.e. not when just dropping the item */
if (update_offset && priv->stream_type == GST_APP_STREAM_TYPE_RANDOM_ACCESS)
priv->offset += buf_size;
}
/* Update the currently queued bytes/buffers/time information for the item
* that was just added to the queue.
*/
static void
gst_app_src_update_queued_push (GstAppSrc * appsrc, GstMiniObject * item)
{
GstAppSrcPrivate *priv = appsrc->priv;
GstClockTime start_buffer_ts = GST_CLOCK_TIME_NONE;
GstClockTime end_buffer_ts = GST_CLOCK_TIME_NONE;
guint buf_size = 0;
guint n_buffers = 0;
if (GST_IS_BUFFER (item)) {
GstBuffer *buf = GST_BUFFER_CAST (item);
buf_size = gst_buffer_get_size (buf);
n_buffers = 1;
start_buffer_ts = end_buffer_ts = GST_BUFFER_DTS_OR_PTS (buf);
if (end_buffer_ts != GST_CLOCK_TIME_NONE
&& GST_BUFFER_DURATION_IS_VALID (buf))
end_buffer_ts += GST_BUFFER_DURATION (buf);
} else if (GST_IS_BUFFER_LIST (item)) {
GstBufferList *buffer_list = GST_BUFFER_LIST_CAST (item);
guint i;
n_buffers = gst_buffer_list_length (buffer_list);
for (i = 0; i < n_buffers; i++) {
GstBuffer *tmp = gst_buffer_list_get (buffer_list, i);
GstClockTime ts = GST_BUFFER_DTS_OR_PTS (tmp);
buf_size += gst_buffer_get_size (tmp);
if (ts != GST_CLOCK_TIME_NONE) {
if (start_buffer_ts == GST_CLOCK_TIME_NONE)
start_buffer_ts = ts;
end_buffer_ts = ts;
if (GST_BUFFER_DURATION_IS_VALID (tmp))
end_buffer_ts += GST_BUFFER_DURATION (tmp);
}
}
}
priv->queued_bytes += buf_size;
priv->queued_buffers += n_buffers;
/* Update time level if working on a TIME segment */
if (priv->last_segment.format == GST_FORMAT_TIME
&& end_buffer_ts != GST_CLOCK_TIME_NONE) {
/* Clip to the last segment boundaries */
if (priv->last_segment.stop != -1
&& end_buffer_ts > priv->last_segment.stop)
end_buffer_ts = priv->last_segment.stop;
else if (priv->last_segment.start > end_buffer_ts)
end_buffer_ts = priv->last_segment.start;
priv->last_in_running_time =
gst_segment_to_running_time (&priv->last_segment, GST_FORMAT_TIME,
end_buffer_ts);
/* If this is the only buffer then we can directly update the queued time
* here. This is especially useful if this was the first buffer because
* otherwise we would have to wait until it is actually unqueued to know
* the queued duration */
if (gst_queue_array_get_length (priv->queue) == 1) {
if (priv->last_segment.stop != -1
&& start_buffer_ts > priv->last_segment.stop)
start_buffer_ts = priv->last_segment.stop;
else if (priv->last_segment.start > start_buffer_ts)
start_buffer_ts = priv->last_segment.start;
priv->last_out_running_time =
gst_segment_to_running_time (&priv->last_segment, GST_FORMAT_TIME,
start_buffer_ts);
}
GST_TRACE_OBJECT (appsrc,
"Last in running time %" GST_TIME_FORMAT ", last out running time %"
GST_TIME_FORMAT, GST_TIME_ARGS (priv->last_in_running_time),
GST_TIME_ARGS (priv->last_out_running_time));
if (priv->last_out_running_time != GST_CLOCK_TIME_NONE
&& priv->last_in_running_time != GST_CLOCK_TIME_NONE) {
if (priv->last_out_running_time > priv->last_in_running_time) {
priv->queued_time = 0;
} else {
priv->queued_time =
priv->last_in_running_time - priv->last_out_running_time;
}
}
}
GST_DEBUG_OBJECT (appsrc,
"Currently queued: %" G_GUINT64_FORMAT " bytes, %" G_GUINT64_FORMAT
" buffers, %" GST_TIME_FORMAT, priv->queued_bytes, priv->queued_buffers,
GST_TIME_ARGS (priv->queued_time));
}
static GstFlowReturn
gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
GstBuffer ** buf)
@ -1263,7 +1556,6 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
while (TRUE) {
/* return data as long as we have some */
if (!gst_queue_array_is_empty (priv->queue)) {
guint buf_size;
GstMiniObject *obj = gst_queue_array_pop_head (priv->queue);
if (GST_IS_CAPS (obj)) {
@ -1297,18 +1589,11 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
if (GST_IS_BUFFER (obj)) {
*buf = GST_BUFFER (obj);
buf_size = gst_buffer_get_size (*buf);
GST_LOG_OBJECT (appsrc, "have buffer %p of size %u", *buf, buf_size);
} else if (GST_IS_BUFFER_LIST (obj)) {
GstBufferList *buffer_list;
buffer_list = GST_BUFFER_LIST (obj);
buf_size = gst_buffer_list_calculate_size (buffer_list);
GST_LOG_OBJECT (appsrc, "have buffer list %p of size %u, %u buffers",
buffer_list, buf_size, gst_buffer_list_length (buffer_list));
gst_base_src_submit_buffer_list (bsrc, buffer_list);
*buf = NULL;
} else if (GST_IS_EVENT (obj)) {
@ -1336,22 +1621,25 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
g_assert_not_reached ();
}
priv->queued_bytes -= buf_size;
/* only update the offset when in random_access mode */
if (priv->stream_type == GST_APP_STREAM_TYPE_RANDOM_ACCESS)
priv->offset += buf_size;
gst_app_src_update_queued_pop (appsrc, obj, TRUE);
/* signal that we removed an item */
if ((priv->wait_status & APP_WAITING))
g_cond_broadcast (&priv->cond);
/* see if we go lower than the min-percent */
if (priv->min_percent && priv->max_bytes) {
if (priv->queued_bytes * 100 / priv->max_bytes <= priv->min_percent)
if (priv->min_percent) {
if ((priv->max_bytes
&& priv->queued_bytes * 100 / priv->max_bytes <=
priv->min_percent) || (priv->max_buffers
&& priv->queued_buffers * 100 / priv->max_buffers <=
priv->min_percent) || (priv->max_time
&& priv->queued_time * 100 / priv->max_time <=
priv->min_percent)) {
/* ignore flushing state, we got a buffer and we will return it now.
* Errors will be handled in the next round */
gst_app_src_emit_need_data (appsrc, size);
}
}
ret = GST_FLOW_OK;
break;
@ -1717,7 +2005,7 @@ gst_app_src_get_max_bytes (GstAppSrc * appsrc)
guint64
gst_app_src_get_current_level_bytes (GstAppSrc * appsrc)
{
gint64 queued;
guint64 queued;
GstAppSrcPrivate *priv;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), -1);
@ -1733,6 +2021,183 @@ gst_app_src_get_current_level_bytes (GstAppSrc * appsrc)
return queued;
}
/**
* gst_app_src_set_max_buffers:
* @appsrc: a #GstAppSrc
* @max: the maximum number of buffers to queue
*
* Set the maximum amount of buffers that can be queued in @appsrc.
* After the maximum amount of buffers are queued, @appsrc will emit the
* "enough-data" signal.
*
* Since: 1.20
*/
void
gst_app_src_set_max_buffers (GstAppSrc * appsrc, guint64 max)
{
GstAppSrcPrivate *priv;
g_return_if_fail (GST_IS_APP_SRC (appsrc));
priv = appsrc->priv;
g_mutex_lock (&priv->mutex);
if (max != priv->max_buffers) {
GST_DEBUG_OBJECT (appsrc, "setting max-buffers to %" G_GUINT64_FORMAT, max);
priv->max_buffers = max;
/* signal the change */
g_cond_broadcast (&priv->cond);
}
g_mutex_unlock (&priv->mutex);
}
/**
* gst_app_src_get_max_buffers:
* @appsrc: a #GstAppSrc
*
* Get the maximum amount of buffers that can be queued in @appsrc.
*
* Returns: The maximum amount of buffers that can be queued.
*
* Since: 1.20
*/
guint64
gst_app_src_get_max_buffers (GstAppSrc * appsrc)
{
guint64 result;
GstAppSrcPrivate *priv;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), 0);
priv = appsrc->priv;
g_mutex_lock (&priv->mutex);
result = priv->max_buffers;
GST_DEBUG_OBJECT (appsrc, "getting max-buffers of %" G_GUINT64_FORMAT,
result);
g_mutex_unlock (&priv->mutex);
return result;
}
/**
* gst_app_src_get_current_level_buffers:
* @appsrc: a #GstAppSrc
*
* Get the number of currently queued buffers inside @appsrc.
*
* Returns: The number of currently queued buffers.
*
* Since: 1.20
*/
guint64
gst_app_src_get_current_level_buffers (GstAppSrc * appsrc)
{
guint64 queued;
GstAppSrcPrivate *priv;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), -1);
priv = appsrc->priv;
GST_OBJECT_LOCK (appsrc);
queued = priv->queued_buffers;
GST_DEBUG_OBJECT (appsrc, "current level buffers is %" G_GUINT64_FORMAT,
queued);
GST_OBJECT_UNLOCK (appsrc);
return queued;
}
/**
* gst_app_src_set_max_time:
* @appsrc: a #GstAppSrc
* @max: the maximum amonut of time to queue
*
* Set the maximum amount of time that can be queued in @appsrc.
* After the maximum amount of time are queued, @appsrc will emit the
* "enough-data" signal.
*
* Since: 1.20
*/
void
gst_app_src_set_max_time (GstAppSrc * appsrc, GstClockTime max)
{
GstAppSrcPrivate *priv;
g_return_if_fail (GST_IS_APP_SRC (appsrc));
priv = appsrc->priv;
g_mutex_lock (&priv->mutex);
if (max != priv->max_time) {
GST_DEBUG_OBJECT (appsrc, "setting max-time to %" GST_TIME_FORMAT,
GST_TIME_ARGS (max));
priv->max_time = max;
/* signal the change */
g_cond_broadcast (&priv->cond);
}
g_mutex_unlock (&priv->mutex);
}
/**
* gst_app_src_get_max_time:
* @appsrc: a #GstAppSrc
*
* Get the maximum amount of time that can be queued in @appsrc.
*
* Returns: The maximum amount of time that can be queued.
*
* Since: 1.20
*/
GstClockTime
gst_app_src_get_max_time (GstAppSrc * appsrc)
{
GstClockTime result;
GstAppSrcPrivate *priv;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), 0);
priv = appsrc->priv;
g_mutex_lock (&priv->mutex);
result = priv->max_time;
GST_DEBUG_OBJECT (appsrc, "getting max-time of %" GST_TIME_FORMAT,
GST_TIME_ARGS (result));
g_mutex_unlock (&priv->mutex);
return result;
}
/**
* gst_app_src_get_current_level_time:
* @appsrc: a #GstAppSrc
*
* Get the amount of currently queued time inside @appsrc.
*
* Returns: The amount of currently queued time.
*
* Since: 1.20
*/
GstClockTime
gst_app_src_get_current_level_time (GstAppSrc * appsrc)
{
gint64 queued;
GstAppSrcPrivate *priv;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), GST_CLOCK_TIME_NONE);
priv = appsrc->priv;
GST_OBJECT_LOCK (appsrc);
queued = priv->queued_time;
GST_DEBUG_OBJECT (appsrc, "current level time is %" GST_TIME_FORMAT,
GST_TIME_ARGS (queued));
GST_OBJECT_UNLOCK (appsrc);
return queued;
}
static void
gst_app_src_set_latencies (GstAppSrc * appsrc, gboolean do_min, guint64 min,
gboolean do_max, guint64 max)
@ -1925,10 +2390,17 @@ gst_app_src_push_internal (GstAppSrc * appsrc, GstBuffer * buffer,
if (priv->is_eos)
goto eos;
if (priv->max_bytes && priv->queued_bytes >= priv->max_bytes) {
if ((priv->max_bytes && priv->queued_bytes >= priv->max_bytes) ||
(priv->max_buffers && priv->queued_buffers >= priv->max_buffers) ||
(priv->max_time && priv->queued_time >= priv->max_time)) {
GST_DEBUG_OBJECT (appsrc,
"queue filled (%" G_GUINT64_FORMAT " >= %" G_GUINT64_FORMAT ")",
priv->queued_bytes, priv->max_bytes);
"queue filled (queued %" G_GUINT64_FORMAT " bytes, max %"
G_GUINT64_FORMAT " bytes, " "queued %" G_GUINT64_FORMAT
" buffers, max %" G_GUINT64_FORMAT " buffers, " "queued %"
GST_TIME_FORMAT " time, max %" GST_TIME_FORMAT " time)",
priv->queued_bytes, priv->max_bytes, priv->queued_buffers,
priv->max_buffers, GST_TIME_ARGS (priv->queued_time),
GST_TIME_ARGS (priv->max_time));
if (first) {
Callbacks *callbacks = NULL;
@ -1983,15 +2455,16 @@ gst_app_src_push_internal (GstAppSrc * appsrc, GstBuffer * buffer,
if (!steal_ref)
gst_buffer_list_ref (buflist);
gst_queue_array_push_tail (priv->queue, buflist);
priv->queued_bytes += gst_buffer_list_calculate_size (buflist);
} else {
GST_DEBUG_OBJECT (appsrc, "queueing buffer %p", buffer);
if (!steal_ref)
gst_buffer_ref (buffer);
gst_queue_array_push_tail (priv->queue, buffer);
priv->queued_bytes += gst_buffer_get_size (buffer);
}
gst_app_src_update_queued_push (appsrc,
buflist ? GST_MINI_OBJECT_CAST (buflist) : GST_MINI_OBJECT_CAST (buffer));
if ((priv->wait_status & STREAM_WAITING))
g_cond_broadcast (&priv->cond);

18
gst-libs/gst/app/gstappsrc.h
View file

@ -154,6 +154,24 @@ guint64 gst_app_src_get_max_bytes (GstAppSrc *appsrc);
GST_APP_API
guint64 gst_app_src_get_current_level_bytes (GstAppSrc *appsrc);
GST_APP_API
void gst_app_src_set_max_buffers (GstAppSrc *appsrc, guint64 max);
GST_APP_API
guint64 gst_app_src_get_max_buffers (GstAppSrc *appsrc);
GST_APP_API
guint64 gst_app_src_get_current_level_buffers (GstAppSrc *appsrc);
GST_APP_API
void gst_app_src_set_max_time (GstAppSrc *appsrc, GstClockTime max);
GST_APP_API
GstClockTime gst_app_src_get_max_time (GstAppSrc *appsrc);
GST_APP_API
GstClockTime gst_app_src_get_current_level_time (GstAppSrc *appsrc);
GST_APP_API
void gst_app_src_set_latency (GstAppSrc *appsrc, guint64 min, guint64 max);