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Code Issues 1 Projects Releases Wiki Activity

Fix seek throttling again

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This commit is contained in:
Xavi Artigas 2012-10-29 17:08:21 +01:00
parent a41783bfe1
commit e752ba790e
1 changed files with 9 additions and 7 deletions
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16
gst-sdk/tutorials/android-tutorial-4/jni/tutorial-4.c
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@ -23,7 +23,9 @@ GST_DEBUG_CATEGORY_STATIC (debug_category);
# define SET_CUSTOM_DATA(env, thiz, fieldID, data) (*env)->SetLongField (env, thiz, fieldID, (jlong)(jint)data) # define SET_CUSTOM_DATA(env, thiz, fieldID, data) (*env)->SetLongField (env, thiz, fieldID, (jlong)(jint)data)
#endif #endif
#define SEEK_MIN_DELAY (500 * GST_MSECOND) /* Minimum time between consecutive seeks */ /* Do not allow seeks to be performed closer than this distance. It is visually useless, and will probably
* confuse some demuxers. */
#define SEEK_MIN_DELAY (500 * GST_MSECOND)
/* Structure to contain all our information, so we can pass it to callbacks */ /* Structure to contain all our information, so we can pass it to callbacks */
typedef struct _CustomData { typedef struct _CustomData {
@ -150,7 +152,6 @@ static gboolean delayed_seek_cb (CustomData *data);
/* Perform seek, if we are not too close to the previous seek. Otherwise, schedule the seek for /* Perform seek, if we are not too close to the previous seek. Otherwise, schedule the seek for
* some time in the future. */ * some time in the future. */
static void execute_seek (gint64 desired_position, CustomData *data) { static void execute_seek (gint64 desired_position, CustomData *data) {
gboolean res;
gint64 diff; gint64 diff;
if (desired_position == GST_CLOCK_TIME_NONE) if (desired_position == GST_CLOCK_TIME_NONE)
@ -162,9 +163,9 @@ static void execute_seek (gint64 desired_position, CustomData *data) {
/* The previous seek was too close, delay this one */ /* The previous seek was too close, delay this one */
GSource *timeout_source; GSource *timeout_source;
if (!GST_CLOCK_TIME_IS_VALID (data->desired_position)) { if (data->desired_position == GST_CLOCK_TIME_NONE) {
/* There was no previous seek scheduled. Setup a timer for some time in the future */ /* There was no previous seek scheduled. Setup a timer for some time in the future */
timeout_source = g_timeout_source_new (SEEK_MIN_DELAY - diff / GST_MSECOND); timeout_source = g_timeout_source_new ((SEEK_MIN_DELAY - diff) / GST_MSECOND);
g_source_set_callback (timeout_source, (GSourceFunc)delayed_seek_cb, data, NULL); g_source_set_callback (timeout_source, (GSourceFunc)delayed_seek_cb, data, NULL);
g_source_attach (timeout_source, data->context); g_source_attach (timeout_source, data->context);
g_source_unref (timeout_source); g_source_unref (timeout_source);
@ -177,8 +178,8 @@ static void execute_seek (gint64 desired_position, CustomData *data) {
} else { } else {
/* Perform the seek now */ /* Perform the seek now */
GST_DEBUG ("Seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (desired_position)); GST_DEBUG ("Seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (desired_position));
res = gst_element_seek_simple (data->pipeline, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT, desired_position);
data->last_seek_time = gst_util_get_timestamp (); data->last_seek_time = gst_util_get_timestamp ();
gst_element_seek_simple (data->pipeline, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT, desired_position);
data->desired_position = GST_CLOCK_TIME_NONE; data->desired_position = GST_CLOCK_TIME_NONE;
} }
} }
@ -186,7 +187,6 @@ static void execute_seek (gint64 desired_position, CustomData *data) {
/* Delayed seek callback. This gets called by the timer setup in the above function. */ /* Delayed seek callback. This gets called by the timer setup in the above function. */
static gboolean delayed_seek_cb (CustomData *data) { static gboolean delayed_seek_cb (CustomData *data) {
GST_DEBUG ("Doing delayed seek to %" GST_TIME_FORMAT, GST_TIME_ARGS (data->desired_position)); GST_DEBUG ("Doing delayed seek to %" GST_TIME_FORMAT, GST_TIME_ARGS (data->desired_position));
data->last_seek_time = GST_CLOCK_TIME_NONE;
execute_seek (data->desired_position, data); execute_seek (data->desired_position, data);
return FALSE; return FALSE;
} }
@ -286,7 +286,7 @@ static void state_changed_cb (GstBus *bus, GstMessage *msg, CustomData *data) {
/* Only pay attention to messages coming from the pipeline, not its children */ /* Only pay attention to messages coming from the pipeline, not its children */
if (GST_MESSAGE_SRC (msg) == GST_OBJECT (data->pipeline)) { if (GST_MESSAGE_SRC (msg) == GST_OBJECT (data->pipeline)) {
data->state = new_state; data->state = new_state;
if (data->state >= GST_STATE_PAUSED && GST_CLOCK_TIME_IS_VALID (data->desired_position)) if (old_state < GST_STATE_PAUSED && new_state >= GST_STATE_PAUSED && GST_CLOCK_TIME_IS_VALID (data->desired_position))
execute_seek (data->desired_position, data); execute_seek (data->desired_position, data);
gchar *message = g_strdup_printf("State changed to %s", gst_element_state_get_name(new_state)); gchar *message = g_strdup_printf("State changed to %s", gst_element_state_get_name(new_state));
set_ui_message(message, data); set_ui_message(message, data);
@ -399,6 +399,8 @@ static void *app_function (void *userdata) {
/* Instruct the native code to create its internal data structure, pipeline and thread */ /* Instruct the native code to create its internal data structure, pipeline and thread */
static void gst_native_init (JNIEnv* env, jobject thiz) { static void gst_native_init (JNIEnv* env, jobject thiz) {
CustomData *data = g_new0 (CustomData, 1); CustomData *data = g_new0 (CustomData, 1);
data->desired_position = GST_CLOCK_TIME_NONE;
data->last_seek_time = GST_CLOCK_TIME_NONE;
SET_CUSTOM_DATA (env, thiz, custom_data_field_id, data); SET_CUSTOM_DATA (env, thiz, custom_data_field_id, data);
GST_DEBUG_CATEGORY_INIT (debug_category, "tutorial-4", 0, "Android tutorial 4"); GST_DEBUG_CATEGORY_INIT (debug_category, "tutorial-4", 0, "Android tutorial 4");
gst_debug_set_threshold_for_name("tutorial-4", GST_LEVEL_DEBUG); gst_debug_set_threshold_for_name("tutorial-4", GST_LEVEL_DEBUG);