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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-04-10 10:04:23 +00:00
seek: add shuttle controls
This commit is contained in:
Wim Taymans
parent
8e71d0587b
commit
22cdc527a5
1 changed files with 189 additions and 14 deletions
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@ -109,9 +109,14 @@ static GtkWidget *video_combo, *audio_combo, *text_combo, *vis_combo;
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static GtkWidget *vis_checkbox, *video_checkbox, *audio_checkbox;
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static GtkWidget *text_checkbox, *mute_checkbox, *volume_spinbutton;
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static GtkWidget *skip_checkbox, *video_window;
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static GtkWidget *rate_spinbutton;
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static GStaticMutex state_mutex = G_STATIC_MUTEX_INIT;
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static GtkWidget *format_combo, *step_amount_spinbutton, *step_rate_spinbutton;
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static GtkWidget *step_flush_checkbox, *step_button;
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static GtkWidget *shuttle_checkbox, *step_button;
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static GtkWidget *shuttle_hscale;
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static GtkAdjustment *shuttle_adjustment;
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static GList *paths = NULL, *l = NULL;
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@ -1004,6 +1009,13 @@ format_value (GtkScale * scale, gdouble value)
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G_GINT64_FORMAT, seconds / 60, seconds % 60, subseconds % 100);
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}
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static gchar *
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shuttle_format_value (GtkScale * scale, gdouble value)
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{
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return g_strdup_printf ("%0.*g", gtk_scale_get_digits (scale), value);
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}
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typedef struct
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{
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const gchar *name;
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@ -1472,6 +1484,7 @@ play_cb (GtkButton * button, gpointer data)
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state = GST_STATE_PLAYING;
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gtk_statusbar_push (GTK_STATUSBAR (statusbar), status_id, "Playing");
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}
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return;
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failed:
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@ -1484,6 +1497,7 @@ failed:
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static void
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pause_cb (GtkButton * button, gpointer data)
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{
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g_static_mutex_lock (&state_mutex);
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if (state != GST_STATE_PAUSED) {
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GstStateChangeReturn ret;
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@ -1503,10 +1517,13 @@ pause_cb (GtkButton * button, gpointer data)
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state = GST_STATE_PAUSED;
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gtk_statusbar_push (GTK_STATUSBAR (statusbar), status_id, "Paused");
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}
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g_static_mutex_unlock (&state_mutex);
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return;
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failed:
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{
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g_static_mutex_unlock (&state_mutex);
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g_print ("PAUSE failed\n");
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gtk_statusbar_push (GTK_STATUSBAR (statusbar), status_id, "Pause failed");
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}
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@ -1521,6 +1538,7 @@ stop_cb (GtkButton * button, gpointer data)
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g_print ("READY pipeline\n");
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gtk_statusbar_pop (GTK_STATUSBAR (statusbar), status_id);
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g_static_mutex_lock (&state_mutex);
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ret = gst_element_set_state (pipeline, GST_STATE_READY);
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if (ret == GST_STATE_CHANGE_FAILURE)
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goto failed;
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@ -1536,6 +1554,7 @@ stop_cb (GtkButton * button, gpointer data)
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if (pipeline_type == 16)
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clear_streams (pipeline);
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g_static_mutex_unlock (&state_mutex);
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#if 0
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/* if one uses parse_launch, play, stop and play again it fails as all the
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@ -1563,6 +1582,7 @@ stop_cb (GtkButton * button, gpointer data)
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failed:
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{
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g_static_mutex_unlock (&state_mutex);
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g_print ("STOP failed\n");
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gtk_statusbar_push (GTK_STATUSBAR (statusbar), status_id, "Stop failed");
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}
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@ -1625,6 +1645,8 @@ rate_spinbutton_changed_cb (GtkSpinButton * button, GstPipeline * pipeline)
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rate = gtk_spin_button_get_value (button);
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GST_DEBUG ("rate changed to %lf", rate);
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flags = 0;
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if (flush_seek)
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flags |= GST_SEEK_FLAG_FLUSH;
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@ -1637,7 +1659,7 @@ rate_spinbutton_changed_cb (GtkSpinButton * button, GstPipeline * pipeline)
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if (skip_seek)
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flags |= GST_SEEK_FLAG_SKIP;
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if (rate >= 0) {
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if (rate >= 0.0) {
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s_event = gst_event_new_seek (rate,
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GST_FORMAT_TIME, flags, GST_SEEK_TYPE_SET, position,
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GST_SEEK_TYPE_SET, GST_CLOCK_TIME_NONE);
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@ -1647,8 +1669,6 @@ rate_spinbutton_changed_cb (GtkSpinButton * button, GstPipeline * pipeline)
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GST_SEEK_TYPE_SET, position);
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}
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GST_DEBUG ("rate changed to %lf", rate);
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res = send_event (s_event);
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if (res) {
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@ -2027,8 +2047,7 @@ step_cb (GtkButton * button, gpointer data)
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gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON
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(step_amount_spinbutton));
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rate = gtk_spin_button_get_value (GTK_SPIN_BUTTON (step_rate_spinbutton));
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flush =
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gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (step_flush_checkbox));
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flush = TRUE;
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switch (active) {
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case 0:
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@ -2068,6 +2087,140 @@ message_received (GstBus * bus, GstMessage * message, GstPipeline * pipeline)
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}
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}
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static gboolean shuttling = FALSE;
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static gdouble shuttle_rate = 0.0;
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static gdouble play_rate = 1.0;
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static void
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do_shuttle (GstElement * element)
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{
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guint64 duration;
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if (shuttling)
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duration = 40 * GST_MSECOND;
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else
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duration = -1;
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gst_element_send_event (element,
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gst_event_new_step (GST_FORMAT_TIME, duration, shuttle_rate, FALSE,
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FALSE));
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}
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static void
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msg_sync_step_done (GstBus * bus, GstMessage * message, GstElement * element)
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{
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GstFormat format;
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guint64 amount;
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gdouble rate;
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gboolean flush;
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gboolean intermediate;
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guint64 duration;
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gboolean eos;
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gst_message_parse_step_done (message, &format, &amount, &rate, &flush,
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&intermediate, &duration, &eos);
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if (eos) {
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g_print ("stepped till EOS\n");
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return;
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}
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if (g_static_mutex_trylock (&state_mutex)) {
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if (shuttling)
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do_shuttle (element);
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g_static_mutex_unlock (&state_mutex);
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} else {
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/* ignore step messages that come while we are doing a state change */
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g_print ("state change is busy\n");
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}
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}
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static void
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shuttle_toggled (GtkToggleButton * button, GstElement * element)
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{
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gboolean active;
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active = gtk_toggle_button_get_active (button);
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if (active != shuttling) {
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shuttling = active;
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g_print ("shuttling %s\n", shuttling ? "active" : "inactive");
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if (active) {
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shuttle_rate = 0.0;
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play_rate = 1.0;
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pause_cb (NULL, NULL);
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gst_element_get_state (element, NULL, NULL, -1);
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}
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}
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}
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static void
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shuttle_rate_switch (GstElement * element)
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{
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GstSeekFlags flags;
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GstEvent *s_event;
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gboolean res;
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if (state == GST_STATE_PLAYING) {
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/* pause when we need to */
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pause_cb (NULL, NULL);
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gst_element_get_state (element, NULL, NULL, -1);
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}
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if (play_rate == 1.0)
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play_rate = -1.0;
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else
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play_rate = 1.0;
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g_print ("rate changed to %lf %" GST_TIME_FORMAT "\n", play_rate,
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GST_TIME_ARGS (position));
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flags = GST_SEEK_FLAG_FLUSH;
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flags |= GST_SEEK_FLAG_ACCURATE;
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if (play_rate >= 0.0) {
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s_event = gst_event_new_seek (play_rate,
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GST_FORMAT_TIME, flags, GST_SEEK_TYPE_SET, position,
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GST_SEEK_TYPE_SET, GST_CLOCK_TIME_NONE);
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} else {
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s_event = gst_event_new_seek (play_rate,
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GST_FORMAT_TIME, flags, GST_SEEK_TYPE_SET, G_GINT64_CONSTANT (0),
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GST_SEEK_TYPE_SET, position);
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}
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res = send_event (s_event);
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if (res) {
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gst_element_get_state (element, NULL, NULL, SEEK_TIMEOUT);
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} else {
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g_print ("seek failed\n");
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}
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}
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static void
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shuttle_value_changed (GtkRange * range, GstElement * element)
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{
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gdouble rate;
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rate = gtk_adjustment_get_value (shuttle_adjustment);
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if (rate == 0.0) {
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g_print ("rate 0.0, pause\n");
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pause_cb (NULL, NULL);
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gst_element_get_state (element, NULL, NULL, -1);
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} else {
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g_print ("rate changed %0.3g\n", rate);
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if ((rate < 0.0 && play_rate > 0.0) || (rate > 0.0 && play_rate < 0.0)) {
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shuttle_rate_switch (element);
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}
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shuttle_rate = ABS (rate);
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if (state != GST_STATE_PLAYING) {
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do_shuttle (element);
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play_cb (NULL, NULL);
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}
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}
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}
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static void
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msg_async_done (GstBus * bus, GstMessage * message, GstPipeline * pipeline)
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{
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@ -2284,7 +2437,8 @@ msg_eos (GstBus * bus, GstMessage * message, GstPipeline * data)
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static void
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msg_step_done (GstBus * bus, GstMessage * message, GstPipeline * data)
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{
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message_received (bus, message, data);
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if (!shuttling)
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message_received (bus, message, data);
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}
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static void
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@ -2299,6 +2453,7 @@ connect_bus_signals (GstElement * pipeline)
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#endif
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gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
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gst_bus_enable_sync_message_emission (bus);
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g_signal_connect (bus, "message::state-changed",
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(GCallback) msg_state_changed, pipeline);
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@ -2324,8 +2479,12 @@ connect_bus_signals (GstElement * pipeline)
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pipeline);
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g_signal_connect (bus, "message::buffering", (GCallback) msg_buffering,
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pipeline);
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g_signal_connect (bus, "message::step-done", (GCallback) msg_step_done,
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// g_signal_connect (bus, "message::step-done", (GCallback) msg_step_done,
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// pipeline);
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g_signal_connect (bus, "message::step-start", (GCallback) msg_step_done,
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pipeline);
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g_signal_connect (bus, "sync-message::step-done",
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(GCallback) msg_sync_step_done, pipeline);
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gst_object_unref (bus);
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}
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@ -2391,7 +2550,7 @@ main (int argc, char **argv)
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*flagtable, *boxes2, *step;
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GtkWidget *play_button, *pause_button, *stop_button, *shot_button;
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GtkWidget *accurate_checkbox, *key_checkbox, *loop_checkbox, *flush_checkbox;
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GtkWidget *scrub_checkbox, *play_scrub_checkbox, *rate_spinbutton;
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GtkWidget *scrub_checkbox, *play_scrub_checkbox;
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GtkWidget *rate_label, *volume_label;
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GtkTooltips *tips;
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GOptionEntry options[] = {
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@ -2531,11 +2690,6 @@ main (int argc, char **argv)
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (step_rate_spinbutton), 1.0);
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gtk_box_pack_start (GTK_BOX (hbox), step_rate_spinbutton, FALSE, FALSE, 2);
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step_flush_checkbox = gtk_check_button_new_with_label ("Flush");
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gtk_box_pack_start (GTK_BOX (hbox), step_flush_checkbox, FALSE, FALSE, 2);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (step_flush_checkbox),
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TRUE);
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step_button = gtk_button_new_from_stock (GTK_STOCK_MEDIA_FORWARD);
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gtk_button_set_label (GTK_BUTTON (step_button), "Step");
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gtk_box_pack_start (GTK_BOX (hbox), step_button, FALSE, FALSE, 2);
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@ -2543,6 +2697,27 @@ main (int argc, char **argv)
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g_signal_connect (G_OBJECT (step_button), "clicked", G_CALLBACK (step_cb),
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pipeline);
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/* shuttle scale */
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shuttle_checkbox = gtk_check_button_new_with_label ("Shuttle");
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gtk_box_pack_start (GTK_BOX (hbox), shuttle_checkbox, FALSE, FALSE, 2);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (shuttle_checkbox), FALSE);
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gtk_signal_connect (GTK_OBJECT (shuttle_checkbox),
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"toggled", G_CALLBACK (shuttle_toggled), pipeline);
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shuttle_adjustment =
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GTK_ADJUSTMENT (gtk_adjustment_new (0.0, -3.00, 4.0, 0.1, 1.0, 1.0));
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shuttle_hscale = gtk_hscale_new (shuttle_adjustment);
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gtk_scale_set_digits (GTK_SCALE (shuttle_hscale), 2);
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gtk_scale_set_value_pos (GTK_SCALE (shuttle_hscale), GTK_POS_TOP);
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gtk_range_set_update_policy (GTK_RANGE (shuttle_hscale),
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GTK_UPDATE_CONTINUOUS);
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gtk_signal_connect (GTK_OBJECT (shuttle_hscale), "value_changed",
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G_CALLBACK (shuttle_value_changed), pipeline);
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gtk_signal_connect (GTK_OBJECT (shuttle_hscale), "format_value",
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G_CALLBACK (shuttle_format_value), pipeline);
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gtk_box_pack_start (GTK_BOX (hbox), shuttle_hscale, TRUE, TRUE, 2);
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gtk_container_add (GTK_CONTAINER (step), hbox);
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}
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