diff options
| -rw-r--r-- | bin/gui/control.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/bin/gui/control.c b/bin/gui/control.c index b210e16..b8023f7 100644 --- a/bin/gui/control.c +++ b/bin/gui/control.c @@ -66,6 +66,7 @@ typedef struct { gint display_width, display_height; gdouble zoom_factor; State state; + guint n_recorded; gboolean data_in_camram; gint timestamp; @@ -347,6 +348,7 @@ record_frames (gpointer args) data = (ThreadData *) args; ring_buffer_reset (data->buffer); + data->n_recorded = 0; n_max = (guint) gtk_adjustment_get_value (data->count); while (1) { @@ -362,6 +364,7 @@ record_frames (gpointer args) if (error == NULL) { ring_buffer_proceed (data->buffer); n_frames++; + data->n_recorded++; } else print_and_free_error (&error); @@ -404,8 +407,14 @@ update_current_frame (ThreadData *data) { gpointer buffer; guint index; + guint n_max; index = (guint) gtk_adjustment_get_value (data->frame_slider); + n_max = ring_buffer_get_num_blocks (data->buffer); + + /* Shift index so that we always show the oldest frames first */ + index = (index + data->n_recorded - n_max) % n_max; + ring_buffer_set_current_pointer (data->buffer, index); buffer = ring_buffer_get_current_pointer (data->buffer); |