static gboolean
play_set_rate_and_trick_mode (GstPlay * play, gdouble rate,
GstPlayTrickMode mode)
{
gint64 pos = -1;
g_return_val_if_fail (rate != 0, FALSE);
if (!gst_element_query_position (play->playbin, GST_FORMAT_TIME, &pos))
return FALSE;
return play_do_seek (play, pos, rate, mode);
}
static void
relative_seek (GstPlay * play, gdouble percent)
{
GstQuery *query;
gboolean seekable = FALSE;
gint64 dur = -1, pos = -1, step;
g_return_if_fail (percent >= -1.0 && percent <= 1.0);
if (!gst_element_query_position (play->playbin, GST_FORMAT_TIME, &pos))
goto seek_failed;
query = gst_query_new_seeking (GST_FORMAT_TIME);
if (!gst_element_query (play->playbin, query)) {
gst_query_unref (query);
goto seek_failed;
}
gst_query_parse_seeking (query, NULL, &seekable, NULL, &dur);
gst_query_unref (query);
if (!seekable || dur <= 0)
goto seek_failed;
step = dur * percent;
if (ABS (step) < GST_SECOND)
step = (percent < 0) ? -GST_SECOND : GST_SECOND;
pos = pos + step;
if (pos > dur) {
if (!play_next (play)) {
g_print ("\n%s\n", _("Reached end of play list."));
g_main_loop_quit (play->loop);
}
} else {
if (pos < 0)
pos = 0;
play_do_seek (play, pos, play->rate, play->trick_mode);
}
return;
seek_failed:
{
g_print ("\nCould not seek.\n");
}
}
static void
keyboard_cb (const gchar * key_input, gpointer user_data)
{
GstPlay *play = (GstPlay *) user_data;
gchar key = '\0';
/* only want to switch/case on single char, not first char of string */
if (key_input[0] != '\0' && key_input[1] == '\0')
key = g_ascii_tolower (key_input[0]);
switch (key) {
case 'k':
print_keyboard_help ();
break;
case ' ':
toggle_paused (play);
break;
case 'q':
case 'Q':
g_main_loop_quit (play->loop);
break;
case 'n':
case '>':
if (!play_next (play)) {
g_print ("\n%s\n", _("Reached end of play list."));
g_main_loop_quit (play->loop);
}
break;
case 'b':
case '<':
play_prev (play);
break;
case '+':
if (play->rate > -0.2 && play->rate < 0.0)
play_set_relative_playback_rate (play, 0.0, TRUE);
else if (ABS (play->rate) < 2.0)
play_set_relative_playback_rate (play, 0.1, FALSE);
else if (ABS (play->rate) < 4.0)
play_set_relative_playback_rate (play, 0.5, FALSE);
else
play_set_relative_playback_rate (play, 1.0, FALSE);
break;
case '-':
if (play->rate > 0.0 && play->rate < 0.20)
play_set_relative_playback_rate (play, 0.0, TRUE);
else if (ABS (play->rate) <= 2.0)
play_set_relative_playback_rate (play, -0.1, FALSE);
else if (ABS (play->rate) <= 4.0)
play_set_relative_playback_rate (play, -0.5, FALSE);
else
play_set_relative_playback_rate (play, -1.0, FALSE);
break;
case 'd':
play_set_relative_playback_rate (play, 0.0, TRUE);
break;
case 't':
play_switch_trick_mode (play);
break;
case 27: /* ESC */
if (key_input[1] == '\0') {
g_main_loop_quit (play->loop);
break;
}
case 'a':
play_cycle_track_selection (play, GST_PLAY_TRACK_TYPE_AUDIO);
break;
case 'v':
play_cycle_track_selection (play, GST_PLAY_TRACK_TYPE_VIDEO);
break;
case 's':
play_cycle_track_selection (play, GST_PLAY_TRACK_TYPE_SUBTITLE);
break;
case '0':
play_do_seek (play, 0, play->rate, play->trick_mode);
break;
default:
if (strcmp (key_input, GST_PLAY_KB_ARROW_RIGHT) == 0) {
relative_seek (play, +0.08);
} else if (strcmp (key_input, GST_PLAY_KB_ARROW_LEFT) == 0) {
relative_seek (play, -0.01);
} else if (strcmp (key_input, GST_PLAY_KB_ARROW_UP) == 0) {
play_set_relative_volume (play, +1.0 / VOLUME_STEPS);
} else if (strcmp (key_input, GST_PLAY_KB_ARROW_DOWN) == 0) {
play_set_relative_volume (play, -1.0 / VOLUME_STEPS);
} else {
GST_INFO ("keyboard input:");
for (; *key_input != '\0'; ++key_input)
GST_INFO (" code %3d", *key_input);
}
break;
}
}
static void
keyboard_cb (const gchar * key_input, GstElement * pipeline)
{
gchar key = '\0';
/* only want to switch/case on single char, not first char of string */
if (key_input[0] != '\0' && key_input[1] == '\0')
key = g_ascii_tolower (key_input[0]);
switch (key) {
case ' ':
toggle_paused (pipeline);
break;
case 'q':
case 'Q':
g_main_loop_quit (loop);
break;
case 'p':
if (cur_rate > -0.2 && cur_rate < 0.0)
play_set_relative_playback_rate (pipeline, 0.0, TRUE);
else if (ABS (cur_rate) < 2.0)
play_set_relative_playback_rate (pipeline, 0.1, FALSE);
else if (ABS (cur_rate) < 4.0)
play_set_relative_playback_rate (pipeline, 0.5, FALSE);
else
play_set_relative_playback_rate (pipeline, 1.0, FALSE);
break;
case 'o':
if (cur_rate > 0.0 && cur_rate < 0.20)
play_set_relative_playback_rate (pipeline, 0.0, TRUE);
else if (ABS (cur_rate) <= 2.0)
play_set_relative_playback_rate (pipeline, -0.1, FALSE);
else if (ABS (cur_rate) <= 4.0)
play_set_relative_playback_rate (pipeline, -0.5, FALSE);
else
play_set_relative_playback_rate (pipeline, -1.0, FALSE);
break;
case 'd':
play_set_relative_playback_rate (pipeline, 0.0, TRUE);
break;
case 't':
play_switch_trick_mode (pipeline);
break;
case 27: /* ESC */
if (key_input[1] == '\0') {
g_main_loop_quit (loop);
break;
}
case '0':
play_do_seek (pipeline, 0, cur_rate, trick_mode);
break;
case 'r':
GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline),
GST_DEBUG_GRAPH_SHOW_ALL, "ipc.master.requested");
break;
default:
if (strcmp (key_input, GST_PLAY_KB_ARROW_RIGHT) == 0) {
relative_seek (pipeline, +0.08);
} else if (strcmp (key_input, GST_PLAY_KB_ARROW_LEFT) == 0) {
relative_seek (pipeline, -0.01);
} else {
GST_INFO ("keyboard input:");
for (; *key_input != '\0'; ++key_input)
GST_INFO (" code %3d", *key_input);
}
break;
}
}
