mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-28 09:15:08 +00:00
appsrc: add min-percent property
Emit need-data when the amount of data in the internal queue drops below min-percent. Fixes #608309
This commit is contained in:
Wim Taymans
Wim Taymans
parent
fac9346405
commit
c94356ad9b
|
|
@ -140,6 +140,7 @@ struct _GstAppSrcPrivate
|
|||
guint64 min_latency;
|
||||
guint64 max_latency;
|
||||
gboolean emit_signals;
|
||||
guint min_percent;
|
||||
|
||||
GstAppSrcCallbacks callbacks;
|
||||
gpointer user_data;
|
||||
|
|
@ -172,6 +173,7 @@ enum
|
|||
#define DEFAULT_PROP_MIN_LATENCY -1
|
||||
#define DEFAULT_PROP_MAX_LATENCY -1
|
||||
#define DEFAULT_PROP_EMIT_SIGNALS TRUE
|
||||
#define DEFAULT_PROP_MIN_PERCENT 0
|
||||
|
||||
enum
|
||||
{
|
||||
|
|
@ -186,6 +188,7 @@ enum
|
|||
PROP_MIN_LATENCY,
|
||||
PROP_MAX_LATENCY,
|
||||
PROP_EMIT_SIGNALS,
|
||||
PROP_MIN_PERCENT,
|
||||
PROP_LAST
|
||||
};
|
||||
|
||||
|
|
@ -400,6 +403,20 @@ gst_app_src_class_init (GstAppSrcClass * klass)
|
|||
"Emit new-preroll and new-buffer signals", DEFAULT_PROP_EMIT_SIGNALS,
|
||||
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
/**
|
||||
* GstAppSrc::empty-percent
|
||||
*
|
||||
* Make appsrc emit the "need-data" signal when the amount of bytes in the
|
||||
* queue drops below this percentage of max-bytes.
|
||||
*
|
||||
* Since: 0.10.26
|
||||
*/
|
||||
g_object_class_install_property (gobject_class, PROP_MIN_PERCENT,
|
||||
g_param_spec_uint ("min-percent", "Min Percent",
|
||||
"Emit need-data when queued bytes drops below this percent of max-bytes",
|
||||
0, 100, DEFAULT_PROP_MIN_PERCENT,
|
||||
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
/**
|
||||
* GstAppSrc::need-data:
|
||||
* @appsrc: the appsrc element that emited the signal
|
||||
|
|
@ -517,6 +534,7 @@ gst_app_src_init (GstAppSrc * appsrc, GstAppSrcClass * klass)
|
|||
priv->min_latency = DEFAULT_PROP_MIN_LATENCY;
|
||||
priv->max_latency = DEFAULT_PROP_MAX_LATENCY;
|
||||
priv->emit_signals = DEFAULT_PROP_EMIT_SIGNALS;
|
||||
priv->min_percent = DEFAULT_PROP_MIN_PERCENT;
|
||||
|
||||
gst_base_src_set_live (GST_BASE_SRC (appsrc), DEFAULT_PROP_IS_LIVE);
|
||||
}
|
||||
|
|
@ -601,6 +619,9 @@ gst_app_src_set_property (GObject * object, guint prop_id,
|
|||
case PROP_EMIT_SIGNALS:
|
||||
gst_app_src_set_emit_signals (appsrc, g_value_get_boolean (value));
|
||||
break;
|
||||
case PROP_MIN_PERCENT:
|
||||
priv->min_percent = g_value_get_uint (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
|
|
@ -663,6 +684,9 @@ gst_app_src_get_property (GObject * object, guint prop_id, GValue * value,
|
|||
case PROP_EMIT_SIGNALS:
|
||||
g_value_set_boolean (value, gst_app_src_get_emit_signals (appsrc));
|
||||
break;
|
||||
case PROP_MIN_PERCENT:
|
||||
g_value_set_uint (value, priv->min_percent);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
|
|
@ -860,6 +884,54 @@ gst_app_src_do_seek (GstBaseSrc * src, GstSegment * segment)
|
|||
return res;
|
||||
}
|
||||
|
||||
/* must be called with the appsrc mutex */
|
||||
static gboolean
|
||||
gst_app_src_emit_seek (GstAppSrc * appsrc, guint64 offset)
|
||||
{
|
||||
gboolean res;
|
||||
gboolean emit;
|
||||
GstAppSrcPrivate *priv = appsrc->priv;
|
||||
|
||||
emit = priv->emit_signals;
|
||||
g_mutex_unlock (priv->mutex);
|
||||
|
||||
GST_DEBUG_OBJECT (appsrc,
|
||||
"we are at %" G_GINT64_FORMAT ", seek to %" G_GINT64_FORMAT,
|
||||
priv->offset, offset);
|
||||
|
||||
if (priv->callbacks.seek_data)
|
||||
res = priv->callbacks.seek_data (appsrc, offset, priv->user_data);
|
||||
else if (emit)
|
||||
g_signal_emit (appsrc, gst_app_src_signals[SIGNAL_SEEK_DATA], 0,
|
||||
offset, &res);
|
||||
|
||||
g_mutex_lock (priv->mutex);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/* must be called with the appsrc mutex. After this call things can be
|
||||
* flushing */
|
||||
static void
|
||||
gst_app_src_emit_need_data (GstAppSrc * appsrc, guint size)
|
||||
{
|
||||
gboolean emit;
|
||||
GstAppSrcPrivate *priv = appsrc->priv;
|
||||
|
||||
emit = priv->emit_signals;
|
||||
g_mutex_unlock (priv->mutex);
|
||||
|
||||
/* we have no data, we need some. We fire the signal with the size hint. */
|
||||
if (priv->callbacks.need_data)
|
||||
priv->callbacks.need_data (appsrc, size, priv->user_data);
|
||||
else if (emit)
|
||||
g_signal_emit (appsrc, gst_app_src_signals[SIGNAL_NEED_DATA], 0, size,
|
||||
NULL);
|
||||
|
||||
g_mutex_lock (priv->mutex);
|
||||
/* we can be flushing now because we released the lock */
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
|
||||
GstBuffer ** buf)
|
||||
|
|
@ -878,27 +950,14 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
|
|||
* changed. */
|
||||
if (G_UNLIKELY (priv->offset != offset)) {
|
||||
gboolean res;
|
||||
gboolean emit;
|
||||
|
||||
emit = priv->emit_signals;
|
||||
g_mutex_unlock (priv->mutex);
|
||||
|
||||
GST_DEBUG_OBJECT (appsrc,
|
||||
"we are at %" G_GINT64_FORMAT ", seek to %" G_GINT64_FORMAT,
|
||||
priv->offset, offset);
|
||||
|
||||
if (priv->callbacks.seek_data)
|
||||
res = priv->callbacks.seek_data (appsrc, offset, priv->user_data);
|
||||
else if (emit)
|
||||
g_signal_emit (appsrc, gst_app_src_signals[SIGNAL_SEEK_DATA], 0,
|
||||
offset, &res);
|
||||
/* do the seek */
|
||||
res = gst_app_src_emit_seek (appsrc, offset);
|
||||
|
||||
if (G_UNLIKELY (!res))
|
||||
/* failing to seek is fatal */
|
||||
goto seek_error;
|
||||
|
||||
g_mutex_lock (priv->mutex);
|
||||
|
||||
priv->offset = offset;
|
||||
}
|
||||
}
|
||||
|
|
@ -916,32 +975,26 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
|
|||
priv->queued_bytes -= buf_size;
|
||||
|
||||
/* only update the offset when in random_access mode */
|
||||
if (priv->stream_type == GST_APP_STREAM_TYPE_RANDOM_ACCESS) {
|
||||
if (priv->stream_type == GST_APP_STREAM_TYPE_RANDOM_ACCESS)
|
||||
priv->offset += buf_size;
|
||||
}
|
||||
|
||||
gst_buffer_set_caps (*buf, priv->caps);
|
||||
|
||||
/* signal that we removed an item */
|
||||
g_cond_broadcast (priv->cond);
|
||||
|
||||
/* see if we go lower than the empty-percent */
|
||||
if (priv->min_percent && priv->max_bytes) {
|
||||
if (priv->queued_bytes * 100 / priv->max_bytes <= 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;
|
||||
} else {
|
||||
gboolean emit;
|
||||
gst_app_src_emit_need_data (appsrc, size);
|
||||
|
||||
emit = priv->emit_signals;
|
||||
g_mutex_unlock (priv->mutex);
|
||||
|
||||
/* we have no data, we need some. We fire the signal with the size hint. */
|
||||
if (priv->callbacks.need_data)
|
||||
priv->callbacks.need_data (appsrc, size, priv->user_data);
|
||||
else if (emit)
|
||||
g_signal_emit (appsrc, gst_app_src_signals[SIGNAL_NEED_DATA], 0, size,
|
||||
NULL);
|
||||
|
||||
g_mutex_lock (priv->mutex);
|
||||
/* we can be flushing now because we released the lock */
|
||||
/* we can be flushing now because we released the lock above */
|
||||
if (G_UNLIKELY (priv->flushing))
|
||||
goto flushing;
|
||||
|
||||
|
|
@ -982,6 +1035,7 @@ eos:
|
|||
}
|
||||
seek_error:
|
||||
{
|
||||
g_mutex_unlock (priv->mutex);
|
||||
GST_ELEMENT_ERROR (appsrc, RESOURCE, READ, ("failed to seek"),
|
||||
GST_ERROR_SYSTEM);
|
||||
return GST_FLOW_ERROR;
|
||||
|
|
@ -1238,8 +1292,8 @@ static void
|
|||
gst_app_src_set_latencies (GstAppSrc * appsrc, gboolean do_min, guint64 min,
|
||||
gboolean do_max, guint64 max)
|
||||
{
|
||||
gboolean changed = FALSE;
|
||||
GstAppSrcPrivate *priv = appsrc->priv;
|
||||
gboolean changed = FALSE;
|
||||
|
||||
g_mutex_lock (priv->mutex);
|
||||
if (do_min && priv->min_latency != min) {
|
||||
|
|
|
|||
Loading…
Reference in a new issue