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a few internal changes:

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Original commit message from CVS:
a few internal changes:
- put last_update_timestamp into GstDParam
- added a GstDParamUpdateInfo enum to the update function so that dparams know what context they are updating in (for example, the first update since the pipeline was started)
- rewrote bogus next_timestamp calculation in GstDParamSmooth
This commit is contained in:
Steve Baker 2002-05-05 15:39:37 +00:00
parent 4321f75fbd
commit b4d1d31ded
6 changed files with 68 additions and 55 deletions
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8
libs/gst/control/dparam.c
View file

@ -99,6 +99,7 @@ gst_dparam_init (GstDParam *dparam)
g_return_if_fail (dparam != NULL);
GST_DPARAM_TYPE(dparam) = 0;
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam)=0LL;
GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam)=0LL;
GST_DPARAM_READY_FOR_UPDATE(dparam)=FALSE;
dparam->lock = g_mutex_new ();
}
@ -150,18 +151,21 @@ gst_dparam_set_property (GObject *object, guint prop_id, const GValue *value, GP
GST_DEBUG(GST_CAT_PARAMS, "setting value from %f to %f", dparam->value_float, g_value_get_float (value));
dparam->value_float = g_value_get_float (value);
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
break;
case ARG_VALUE_INT:
GST_DEBUG(GST_CAT_PARAMS, "setting value from %d to %d", dparam->value_int, g_value_get_int (value));
dparam->value_int = g_value_get_int (value);
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
break;
case ARG_VALUE_INT64:
GST_DEBUG(GST_CAT_PARAMS, "setting value from %lld to %lld", dparam->value_int64, g_value_get_int64 (value));
dparam->value_int64 = g_value_get_int (value);
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
break;
default:
@ -171,7 +175,7 @@ gst_dparam_set_property (GObject *object, guint prop_id, const GValue *value, GP
}
void
gst_dparam_do_update_default (GstDParam *dparam, gint64 timestamp, GValue *value)
gst_dparam_do_update_default (GstDParam *dparam, gint64 timestamp, GValue *value, GstDParamUpdateInfo update_info)
{
GST_DPARAM_LOCK(dparam);
@ -196,6 +200,8 @@ gst_dparam_do_update_default (GstDParam *dparam, gint64 timestamp, GValue *value
}
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) = timestamp;
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = timestamp;
GST_DPARAM_UNLOCK(dparam);
}

16
libs/gst/control/dparam.h
View file

@ -51,13 +51,20 @@ extern "C" {
#define GST_DPARAM_READY_FOR_UPDATE(dparam) ((dparam)->ready_for_update)
#define GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) ((dparam)->next_update_timestamp)
#define GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) ((dparam)->last_update_timestamp)
#define GST_DPARAM_DO_UPDATE(dparam, timestamp, value) \
((dparam->do_update_func)(dparam, timestamp, value))
#define GST_DPARAM_DO_UPDATE(dparam, timestamp, value, update_info) \
((dparam->do_update_func)(dparam, timestamp, value, update_info))
typedef struct _GstDParamClass GstDParamClass;
typedef void (*GstDParamDoUpdateFunction) (GstDParam *dparam, gint64 timestamp, GValue *value);
typedef enum {
GST_DPARAM_UPDATE_FIRST,
GST_DPARAM_UPDATE_NORMAL,
} GstDParamUpdateInfo;
typedef void (*GstDParamDoUpdateFunction) (GstDParam *dparam, gint64 timestamp, GValue *value, GstDParamUpdateInfo update_info);
struct _GstDParam {
GstObject object;
@ -76,6 +83,7 @@ struct _GstDParam {
gboolean ready_for_update;
gint64 next_update_timestamp;
gint64 last_update_timestamp;
gchar *unit_name;
gboolean is_log;
};
@ -91,7 +99,7 @@ GType gst_dparam_get_type (void);
GstDParam* gst_dparam_new (GType type);
void gst_dparam_attach (GstDParam *dparam, GstDParamManager *manager, GParamSpec *param_spec, gchar *unit_name);
void gst_dparam_detach (GstDParam *dparam);
void gst_dparam_do_update_default (GstDParam *dparam, gint64 timestamp, GValue *value);
void gst_dparam_do_update_default (GstDParam *dparam, gint64 timestamp, GValue *value, GstDParamUpdateInfo update_info);
#ifdef __cplusplus
}

75
libs/gst/control/dparam_smooth.c
View file

@ -30,8 +30,7 @@ static void gst_dpsmooth_class_init (GstDParamSmoothClass *klass);
static void gst_dpsmooth_init (GstDParamSmooth *dparam);
static void gst_dpsmooth_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_dpsmooth_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static gint64 gst_dpsmooth_time_since_last_update(GstDParam *dparam, gint64 timestamp);
static void gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value);
static void gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value, GstDParamUpdateInfo update_info);
enum {
ARG_0,
@ -132,7 +131,6 @@ gst_dpsmooth_new (GType type)
dparam->do_update_func = gst_dparam_do_update_default;
break;
}
dpsmooth->last_update_timestamp = 0LL;
return dparam;
}
@ -199,35 +197,8 @@ gst_dpsmooth_get_property (GObject *object, guint prop_id, GValue *value, GParam
}
}
static gint64
gst_dpsmooth_time_since_last_update(GstDParam *dparam, gint64 timestamp)
{
gint64 time_diff, last_update_diff, num_update_periods;
GstDParamSmooth *dpsmooth = GST_DPSMOOTH(dparam);
last_update_diff = timestamp - dpsmooth->last_update_timestamp;
time_diff = MIN(dpsmooth->update_period, last_update_diff);
GST_DEBUG(GST_CAT_PARAMS, "last_update_diff:%lld",last_update_diff);
GST_DEBUG(GST_CAT_PARAMS, "time_diff:%lld",time_diff);
dpsmooth->last_update_timestamp = GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam);
if(GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) <= timestamp && dpsmooth->update_period > 0LL){
GST_DEBUG(GST_CAT_PARAMS, "dpsmooth->update_period:%lld",dpsmooth->update_period);
num_update_periods = last_update_diff / dpsmooth->update_period;
GST_DEBUG(GST_CAT_PARAMS, "num_update_periods:%lld",num_update_periods);
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = dpsmooth->update_period * (num_update_periods + 1LL);
}
GST_DEBUG(GST_CAT_PARAMS, "last:%lld current:%lld next:%lld",
dpsmooth->last_update_timestamp, timestamp, GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam));
return time_diff;
}
static void
gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value)
gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value, GstDParamUpdateInfo update_info)
{
gint64 time_diff;
gfloat time_ratio;
@ -238,9 +209,21 @@ gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value
GST_DPARAM_LOCK(dparam);
time_diff = gst_dpsmooth_time_since_last_update(dparam, timestamp);
if (update_info == GST_DPARAM_UPDATE_FIRST){
/*this is the first update since the pipeline started.
* the value won't be smoothed, it will be updated immediately
*/
g_value_set_float(value, dparam->value_float);
GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) = timestamp;
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = timestamp;
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
GST_DPARAM_UNLOCK(dparam);
return;
}
time_diff = timestamp - GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam);
target = dparam->value_float;
current = g_value_get_float(value);
@ -255,7 +238,6 @@ gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value
if (current == 0.0F){
/* this shouldn't happen, so forget about smoothing and just set the value */
final_val = target;
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
}
else {
gfloat current_log;
@ -265,27 +247,34 @@ gst_dpsmooth_do_update_float (GstDParam *dparam, gint64 timestamp, GValue *value
GST_DEBUG(GST_CAT_PARAMS, "current_log:%f",current_log);
GST_DEBUG(GST_CAT_PARAMS, "current_diff:%f",current_diff);
if (current_diff > max_change)
if (current_diff > max_change){
final_val = (target < current) ? exp(current_log-max_change) : exp(current_log+max_change);
else
final_val = target;
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
}
else {
final_val = target;
}
}
}
else {
current_diff = ABS (current - target);
if (current_diff > max_change)
if (current_diff > max_change){
final_val = (target < current) ? current-max_change : current+max_change;
else
}
else {
final_val = target;
GST_DPARAM_READY_FOR_UPDATE(dparam) = FALSE;
}
}
GST_DPARAM_READY_FOR_UPDATE(dparam) = (current_diff > max_change);
g_value_set_float(value, final_val);
GST_DPARAM_READY_FOR_UPDATE(dparam) = (final_val != target);
if (GST_DPARAM_READY_FOR_UPDATE(dparam)){
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = timestamp + dpsmooth->update_period;
}
GST_DPARAM_LAST_UPDATE_TIMESTAMP(dparam) = timestamp;
g_value_set_float(value, final_val);
GST_DEBUG(GST_CAT_PARAMS, "target:%f current:%f final:%f actual:%f", target, current, final_val, g_value_get_float(value));
GST_DPARAM_UNLOCK(dparam);
}

1
libs/gst/control/dparam_smooth.h
View file

@ -40,7 +40,6 @@ typedef struct _GstDParamSmooth GstDParamSmooth;
struct _GstDParamSmooth {
GstDParam dparam;
gint64 last_update_timestamp;
gint64 update_period;
gint64 slope_time;
gfloat slope_delta_float;

22
libs/gst/control/dparammanager.c
View file

@ -628,6 +628,9 @@ gst_dpman_state_change (GstElement *element, gint old_state, gint new_state, Gst
if (new_state == GST_STATE_PLAYING){
GST_DEBUG(GST_CAT_PARAMS, "initialising params");
/* some dparams treat the first update after the pipeline starts differently */
dpman->update_info = GST_DPARAM_UPDATE_FIRST;
/* force all params to be updated */
dwraps = GST_DPMAN_DPARAMS_LIST(dpman);
@ -637,9 +640,7 @@ gst_dpman_state_change (GstElement *element, gint old_state, gint new_state, Gst
if (dparam){
GST_DPARAM_READY_FOR_UPDATE(dparam) = TRUE;
/*if (dparam->spec){
g_value_copy(dparam->spec->default_val, dpwrap->value);
}*/
GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) = 0LL;
}
dwraps = g_slist_next(dwraps);
}
@ -676,7 +677,10 @@ gst_dpman_preprocess_synchronous(GstDParamManager *dpman, guint frames, gint64 t
while (dwraps){
dpwrap = (GstDParamWrapper*)dwraps->data;
dparam = dpwrap->dparam;
/*g_print("timestamp %lld \n", timestamp);
if (dparam)
g_print("next update: %lld \n", GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam));*/
if (dparam && (GST_DPARAM_READY_FOR_UPDATE(dparam) &&
(GST_DPARAM_NEXT_UPDATE_TIMESTAMP(dparam) <= timestamp))){
@ -684,7 +688,7 @@ gst_dpman_preprocess_synchronous(GstDParamManager *dpman, guint frames, gint64 t
/* direct method - set the value directly in the struct of the element */
case GST_DPMAN_DIRECT:
GST_DPARAM_DO_UPDATE(dparam, timestamp, dpwrap->value);
GST_DPARAM_DO_UPDATE(dparam, timestamp, dpwrap->value, dpman->update_info);
GST_DEBUG(GST_CAT_PARAMS, "doing direct update");
switch (G_VALUE_TYPE(dpwrap->value)){
case G_TYPE_INT:
@ -703,7 +707,7 @@ gst_dpman_preprocess_synchronous(GstDParamManager *dpman, guint frames, gint64 t
/* callback method - call the element's callback so it can do what it likes */
case GST_DPMAN_CALLBACK:
GST_DPARAM_DO_UPDATE(dparam, timestamp, dpwrap->value);
GST_DPARAM_DO_UPDATE(dparam, timestamp, dpwrap->value, dpman->update_info);
GST_DEBUG(GST_CAT_PARAMS, "doing callback update");
GST_DPMAN_DO_UPDATE(dpwrap);
break;
@ -729,6 +733,12 @@ gst_dpman_preprocess_synchronous(GstDParamManager *dpman, guint frames, gint64 t
}
dwraps = g_slist_next(dwraps);
}
if (dpman->update_info == GST_DPARAM_UPDATE_FIRST){
/* it is not the first update anymore */
dpman->update_info = GST_DPARAM_UPDATE_NORMAL;
}
return frames;
}

1
libs/gst/control/dparammanager.h
View file

@ -77,6 +77,7 @@ struct _GstDParamManager {
gint64 timestamp;
guint rate;
GstDParamUpdateInfo update_info;
};
struct _GstDParamManagerClass {