gtk/src/preview.c

   1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
   2 /*
   3  * preview.c
   4  * Copyright (C) John Stebbins 2008 <stebbins@stebbins>
   5  *
   6  * preview.c is free software.
   7  *
   8  * You may redistribute it and/or modify it under the terms of the
   9  * GNU General Public License, as published by the Free Software
  10  * Foundation; either version 2 of the License, or (at your option)
  11  * any later version.
  12  *
  13  */
  14 #include <unistd.h>
  15 #include <glib.h>
  16 #include <glib/gstdio.h>
  17 #include <glib-object.h>
  18 #include <gtk/gtk.h>
  19
  20 #if !defined(_WIN32)
  21 #include <gdk/gdkx.h>
  22 #endif
  23
  24 #if defined(_ENABLE_GST)
  25 #include <gst/gst.h>
  26 #include <gst/interfaces/xoverlay.h>
  27 #include <gst/video/video.h>
  28 #include <gst/pbutils/missing-plugins.h>
  29 #endif
  30
  31 #include "settings.h"
  32 #include "presets.h"
  33 #include "callbacks.h"
  34 #include "hb-backend.h"
  35 #include "preview.h"
  36 #include "values.h"
  37 #include "hb.h"
  38
  39 #define PREVIEW_STATE_IMAGE 0
  40 #define PREVIEW_STATE_LIVE 1
  41
  42 struct preview_s
  43 {
  44 #if defined(_ENABLE_GST)
  45         GstElement *play;
  46         gulong xid;
  47 #endif
  48         gint64 len;
  49         gint64 pos;
  50         gboolean seek_lock;
  51         gboolean progress_lock;
  52         gint width;
  53         gint height;
  54         GtkWidget *view;
  55         GdkPixbuf *pix;
  56         gint button_width;
  57         gint button_height;
  58         gint frame;
  59         gint state;
  60         gboolean pause;
  61         gboolean encoded[10];
  62         gint encode_frame;
  63         gint live_id;
  64         gchar *current;
  65 };
  66
  67 #if defined(_ENABLE_GST)
  68 G_MODULE_EXPORT gboolean live_preview_cb(GstBus *bus, GstMessage *msg, gpointer data);
  69 static GstBusSyncReply create_window(GstBus *bus, GstMessage *msg,
  70                                 gpointer data);
  71 #endif
  72
  73 G_MODULE_EXPORT gboolean preview_expose_cb(GtkWidget *widget, GdkEventExpose *event,
  74                                 signal_user_data_t *ud);
  75
  76 void
  77 ghb_screen_par(signal_user_data_t *ud, gint *par_n, gint *par_d)
  78 {
  79 #if defined(_ENABLE_GST)
  80         GValue disp_par = {0,};
  81         GstElement *xover;
  82         GObjectClass *klass;
  83         GParamSpec *pspec;
  84
  85         g_value_init(&disp_par, GST_TYPE_FRACTION);
  86         gst_value_set_fraction(&disp_par, 1, 1);
  87         g_object_get(ud->preview->play, "video-sink", &xover, NULL);
  88         if (xover == NULL)
  89                 goto fail;
  90
  91         klass = G_OBJECT_GET_CLASS(xover);
  92         if (klass == NULL)
  93                 goto fail;
  94
  95         pspec = g_object_class_find_property(klass, "pixel-aspect_ratio");
  96         if (pspec)
  97         {
  98                 GValue par_prop = {0,};
  99
 100                 g_value_init(&par_prop, pspec->value_type);
 101                 g_object_get_property(G_OBJECT(xover), "pixel-aspect-ratio",
 102                                                                 &par_prop);
 103                 if (!g_value_transform(&par_prop, &disp_par))
 104                 {
 105                         g_warning("transform failed");
 106                         gst_value_set_fraction(&disp_par, 1, 1);
 107                 }
 108                 g_value_unset(&par_prop);
 109         }
 110         *par_n = gst_value_get_fraction_numerator(&disp_par);
 111         *par_d = gst_value_get_fraction_denominator(&disp_par);
 112         g_value_unset(&disp_par);
 113         return;
 114
 115 fail:
 116         *par_n = 1;
 117         *par_d = 1;
 118 #else
 119         *par_n = 1;
 120         *par_d = 1;
 121 #endif
 122 }
 123
 124 void
 125 ghb_par_scale(signal_user_data_t *ud, gint *width, gint *height, gint par_n, gint par_d)
 126 {
 127         gint disp_par_n, disp_par_d;
 128         gint64 num, den;
 129
 130         ghb_screen_par(ud, &disp_par_n, &disp_par_d);
 131         if (disp_par_n < 1) disp_par_n = 1;
 132         if (disp_par_d < 1) disp_par_d = 1;
 133         num = par_n * disp_par_d;
 134         den = par_d * disp_par_n;
 135
 136         if (par_n > par_d)
 137                 *width = *width * num / den;
 138         else
 139                 *height = *height * den / num;
 140 }
 141
 142 void
 143 ghb_preview_init(signal_user_data_t *ud)
 144 {
 145         ud->preview = g_malloc0(sizeof(preview_t));
 146         ud->preview->view = GHB_WIDGET(ud->builder, "preview_image");
 147         gtk_widget_realize(ud->preview->view);
 148         g_signal_connect(G_OBJECT(ud->preview->view), "expose_event",
 149                                         G_CALLBACK(preview_expose_cb), ud);
 150
 151         ud->preview->pause = TRUE;
 152         ud->preview->encode_frame = -1;
 153         ud->preview->live_id = -1;
 154
 155 #if defined(_ENABLE_GST)
 156         GstBus *bus;
 157         GstElement *xover;
 158
 159         ud->preview->xid = GDK_DRAWABLE_XID(ud->preview->view->window);
 160         ud->preview->play = gst_element_factory_make("playbin", "play");
 161         //xover = gst_element_factory_make("xvimagesink", "xover");
 162         //xover = gst_element_factory_make("ximagesink", "xover");
 163         xover = gst_element_factory_make("gconfvideosink", "xover");
 164         if (xover == NULL)
 165         {
 166                 GtkWidget *widget = GHB_WIDGET(ud->builder, "live_preview_box");
 167                 gtk_widget_hide (widget);
 168                 widget = GHB_WIDGET(ud->builder, "live_preview_duration_box");
 169                 gtk_widget_hide (widget);
 170                 return;
 171         }
 172
 173         g_object_set(G_OBJECT(ud->preview->play), "video-sink", xover, NULL);
 174         g_object_set(ud->preview->play, "subtitle-font-desc",
 175                                 "sans bold 20", NULL);
 176         //g_object_set(G_OBJECT(xover), "force-aspect-ratio", TRUE, NULL);
 177
 178         bus = gst_pipeline_get_bus(GST_PIPELINE(ud->preview->play));
 179         gst_bus_add_watch(bus, live_preview_cb, ud);
 180         gst_bus_set_sync_handler(bus, create_window, ud->preview);
 181         gst_object_unref(bus);
 182 #else
 183         GtkWidget *widget = GHB_WIDGET(ud->builder, "live_preview_box");
 184         gtk_widget_hide (widget);
 185         widget = GHB_WIDGET(ud->builder, "live_preview_duration_box");
 186         gtk_widget_hide (widget);
 187 #endif
 188 }
 189
 190 void
 191 ghb_preview_cleanup(signal_user_data_t *ud)
 192 {
 193         if (ud->preview->current)
 194         {
 195                 ud->preview->current = NULL;
 196                 g_free(ud->preview->current);
 197         }
 198 }
 199
 200 #if defined(_ENABLE_GST)
 201 static GstBusSyncReply
 202 create_window(GstBus *bus, GstMessage *msg, gpointer data)
 203 {
 204         preview_t *preview = (preview_t*)data;
 205
 206         switch (GST_MESSAGE_TYPE(msg))
 207         {
 208         case GST_MESSAGE_ELEMENT:
 209         {
 210                 if (!gst_structure_has_name(msg->structure, "prepare-xwindow-id"))
 211                         return GST_BUS_PASS;
 212                 gst_x_overlay_set_xwindow_id(
 213                         GST_X_OVERLAY(GST_MESSAGE_SRC(msg)), preview->xid);
 214                 gst_message_unref(msg);
 215                 return GST_BUS_DROP;
 216         } break;
 217
 218         default:
 219         {
 220         } break;
 221         }
 222         return GST_BUS_PASS;
 223 }
 224
 225 static GList *
 226 get_stream_info_objects_for_type (GstElement *play, const gchar *typestr)
 227 {
 228         GValueArray *info_arr = NULL;
 229         GList *ret = NULL;
 230         guint ii;
 231
 232         if (play == NULL)
 233                 return NULL;
 234
 235         g_object_get(play, "stream-info-value-array", &info_arr, NULL);
 236         if (info_arr == NULL)
 237                 return NULL;
 238
 239         for (ii = 0; ii < info_arr->n_values; ++ii)
 240         {
 241                 GObject *info_obj;
 242                 GValue *val;
 243
 244                 val = g_value_array_get_nth(info_arr, ii);
 245                 info_obj = g_value_get_object(val);
 246                 if (info_obj)
 247                 {
 248                         GParamSpec *pspec;
 249                         GEnumValue *value;
 250                         gint type = -1;
 251
 252                         g_object_get(info_obj, "type", &type, NULL);
 253                         pspec = g_object_class_find_property(
 254                                                 G_OBJECT_GET_CLASS (info_obj), "type");
 255                         value = g_enum_get_value(
 256                                                 G_PARAM_SPEC_ENUM (pspec)->enum_class, type);
 257                         if (value)
 258                         {
 259                                 if (g_ascii_strcasecmp (value->value_nick, typestr) == 0 ||
 260                                         g_ascii_strcasecmp (value->value_name, typestr) == 0)
 261                                 {
 262                                         ret = g_list_prepend (ret, g_object_ref (info_obj));
 263                                 }
 264                         }
 265                 }
 266         }
 267         g_value_array_free (info_arr);
 268         return g_list_reverse (ret);
 269 }
 270
 271 static void
 272 caps_set(GstCaps *caps, signal_user_data_t *ud)
 273 {
 274         GstStructure *ss;
 275
 276         ss = gst_caps_get_structure(caps, 0);
 277         if (ss)
 278         {
 279                 gint fps_n, fps_d, width, height;
 280                 guint num, den, par_n, par_d;
 281                 gint disp_par_n, disp_par_d;
 282                 const GValue *par;
 283
 284                 gst_structure_get_fraction(ss, "framerate", &fps_n, &fps_d);
 285                 gst_structure_get_int(ss, "width", &width);
 286                 gst_structure_get_int(ss, "height", &height);
 287                 par = gst_structure_get_value(ss, "pixel-aspect-ratio");
 288                 par_n = gst_value_get_fraction_numerator(par);
 289                 par_d = gst_value_get_fraction_denominator(par);
 290
 291                 ghb_screen_par(ud, &disp_par_n, &disp_par_d);
 292                 gst_video_calculate_display_ratio(
 293                         &num, &den, width, height, par_n, par_d, disp_par_n, disp_par_d);
 294
 295                 if (par_n > par_d)
 296                         width = gst_util_uint64_scale_int(height, num, den);
 297                 else
 298                         height = gst_util_uint64_scale_int(width, den, num);
 299
 300                 if (ghb_settings_get_boolean(ud->settings, "reduce_hd_preview"))
 301                 {
 302                         GdkScreen *ss;
 303                         gint s_w, s_h;
 304
 305                         ss = gdk_screen_get_default();
 306                         s_w = gdk_screen_get_width(ss);
 307                         s_h = gdk_screen_get_height(ss);
 308
 309                         if (width > s_w * 80 / 100)
 310                         {
 311                                 width = s_w * 80 / 100;
 312                                 height = gst_util_uint64_scale_int(width, den, num);
 313                         }
 314                         if (height > s_h * 80 / 100)
 315                         {
 316                                 height = s_h * 80 / 100;
 317                                 width = gst_util_uint64_scale_int(height, num, den);
 318                         }
 319                 }
 320
 321                 if (width != ud->preview->width || height != ud->preview->height)
 322                 {
 323                         gtk_widget_set_size_request(ud->preview->view, width, height);
 324                         ud->preview->width = width;
 325                         ud->preview->height = height;
 326                 }
 327         }
 328 }
 329
 330 static void
 331 update_stream_info(signal_user_data_t *ud)
 332 {
 333         GList *vstreams, *ll;
 334         GstPad *vpad = NULL;
 335
 336         vstreams = get_stream_info_objects_for_type(ud->preview->play, "video");
 337         if (vstreams)
 338         {
 339                 for (ll = vstreams; vpad == NULL && ll != NULL; ll = ll->next)
 340                 {
 341                         g_object_get(ll->data, "object", &vpad, NULL);
 342                 }
 343         }
 344         if (vpad)
 345         {
 346                 GstCaps *caps;
 347
 348                 caps = gst_pad_get_negotiated_caps(vpad);
 349                 if (caps)
 350                 {
 351                         caps_set(caps, ud);
 352                         gst_caps_unref(caps);
 353                 }
 354                 //g_signal_connect(vpad, "notify::caps", G_CALLBACK(caps_set_cb), preview);
 355                 gst_object_unref(vpad);
 356         }
 357         g_list_foreach(vstreams, (GFunc)g_object_unref, NULL);
 358         g_list_free(vstreams);
 359 }
 360
 361 G_MODULE_EXPORT gboolean
 362 live_preview_cb(GstBus *bus, GstMessage *msg, gpointer data)
 363 {
 364         signal_user_data_t *ud = (signal_user_data_t*)data;
 365
 366         switch (GST_MESSAGE_TYPE(msg))
 367         {
 368         case GST_MESSAGE_ERROR:
 369         {
 370                 GError *err;
 371                 gchar *debug;
 372
 373                 gst_message_parse_error(msg, &err, &debug);
 374                 g_warning("Gstreamer Error: %s", err->message);
 375                 g_error_free(err);
 376                 g_free(debug);
 377         } break;
 378
 379         case GST_MESSAGE_ELEMENT:
 380         {
 381                 if (gst_is_missing_plugin_message(msg))
 382                 {
 383                         gst_element_set_state(ud->preview->play, GST_STATE_PAUSED);
 384                         gchar *message, *desc;
 385                         desc = gst_missing_plugin_message_get_description(msg);
 386                         message = g_strdup_printf(
 387                                                 "Missing GStreamer plugin\n"
 388                                                 "Audio or Video may not play as expected\n\n%s",
 389                                                 desc);
 390                         ghb_message_dialog(GTK_MESSAGE_WARNING, message, "Ok", NULL);
 391                         g_free(message);
 392                         gst_element_set_state(ud->preview->play, GST_STATE_PLAYING);
 393                 }
 394         } break;
 395
 396         case GST_MESSAGE_STATE_CHANGED:
 397         {
 398                 GstState state, pending;
 399                 gst_element_get_state(ud->preview->play, &state, &pending, 0);
 400                 if (state == GST_STATE_PAUSED || state == GST_STATE_PLAYING)
 401                 {
 402                         update_stream_info(ud);
 403                 }
 404         } break;
 405
 406         case GST_MESSAGE_EOS:
 407         {
 408                 // Done
 409                 GtkImage *img;
 410
 411                 img = GTK_IMAGE(GHB_WIDGET(ud->builder, "live_preview_play_image"));
 412                 gtk_image_set_from_stock(img, "gtk-media-play", GTK_ICON_SIZE_BUTTON);
 413                 gst_element_set_state(ud->preview->play, GST_STATE_PAUSED);
 414                 ud->preview->pause = TRUE;
 415                 gst_element_seek(ud->preview->play, 1.0,
 416                         GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT,
 417                         GST_SEEK_TYPE_SET, 0,
 418                         GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
 419         } break;
 420
 421         default:
 422         {
 423                 // Ignore
 424         }
 425         }
 426         return TRUE;
 427 }
 428
 429 void
 430 live_preview_start(signal_user_data_t *ud)
 431 {
 432         GtkImage *img;
 433         gchar *uri;
 434
 435         img = GTK_IMAGE(GHB_WIDGET(ud->builder, "live_preview_play_image"));
 436         if (!ud->preview->encoded[ud->preview->frame])
 437         {
 438                 gtk_image_set_from_stock(img, "gtk-media-play", GTK_ICON_SIZE_BUTTON);
 439                 gst_element_set_state(ud->preview->play, GST_STATE_NULL);
 440                 ud->preview->pause = TRUE;
 441                 return;
 442         }
 443
 444         uri = g_strdup_printf("file://%s", ud->preview->current);
 445         gtk_image_set_from_stock(img, "gtk-media-pause", GTK_ICON_SIZE_BUTTON);
 446         ud->preview->state = PREVIEW_STATE_LIVE;
 447         g_object_set(G_OBJECT(ud->preview->play), "uri", uri, NULL);
 448         gst_element_set_state(ud->preview->play, GST_STATE_PLAYING);
 449         ud->preview->pause = FALSE;
 450         g_free(uri);
 451 }
 452
 453 void
 454 live_preview_pause(signal_user_data_t *ud)
 455 {
 456         GtkImage *img;
 457
 458         img = GTK_IMAGE(GHB_WIDGET(ud->builder, "live_preview_play_image"));
 459         gtk_image_set_from_stock(img, "gtk-media-play", GTK_ICON_SIZE_BUTTON);
 460         gst_element_set_state(ud->preview->play, GST_STATE_PAUSED);
 461         ud->preview->pause = TRUE;
 462 }
 463 #endif
 464
 465 void
 466 live_preview_stop(signal_user_data_t *ud)
 467 {
 468         GtkImage *img;
 469         GtkRange *progress;
 470
 471         img = GTK_IMAGE(GHB_WIDGET(ud->builder, "live_preview_play_image"));
 472         gtk_image_set_from_stock(img, "gtk-media-play", GTK_ICON_SIZE_BUTTON);
 473 #if defined(_ENABLE_GST)
 474         gst_element_set_state(ud->preview->play, GST_STATE_NULL);
 475 #endif
 476         ud->preview->pause = TRUE;
 477         ud->preview->state = PREVIEW_STATE_IMAGE;
 478
 479         progress = GTK_RANGE(GHB_WIDGET(ud->builder, "live_preview_progress"));
 480         gtk_range_set_value(progress, 0);
 481 }
 482
 483 void
 484 ghb_live_reset(signal_user_data_t *ud)
 485 {
 486         gboolean encoded;
 487
 488         if (ud->preview->live_id >= 0)
 489         {
 490                 ghb_stop_live_encode();
 491         }
 492         ud->preview->live_id = -1;
 493         ud->preview->encode_frame = -1;
 494         if (!ud->preview->pause)
 495                 live_preview_stop(ud);
 496         if (ud->preview->current)
 497         {
 498                 g_free(ud->preview->current);
 499                 ud->preview->current = NULL;
 500         }
 501         encoded = ud->preview->encoded[ud->preview->frame];
 502         memset(ud->preview->encoded, 0, sizeof(gboolean) * 10);
 503         if (encoded)
 504                 ghb_set_preview_image(ud);
 505 }
 506
 507 extern void hb_get_tempory_directory(hb_handle_t *h, char path[512]);
 508
 509 G_MODULE_EXPORT void
 510 live_preview_start_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 511 {
 512         gchar *tmp_dir;
 513         gchar *name;
 514         gint frame = ud->preview->frame;
 515
 516         tmp_dir = ghb_get_tmp_dir();
 517         name = g_strdup_printf("%s/live%02d", tmp_dir, ud->preview->frame);
 518         if (ud->preview->current)
 519                 g_free(ud->preview->current);
 520         ud->preview->current = name;
 521
 522         if (ud->preview->encoded[frame] &&
 523                 g_file_test(name, G_FILE_TEST_IS_REGULAR))
 524         {
 525 #if defined(_ENABLE_GST)
 526                 if (ud->preview->pause)
 527                         live_preview_start(ud);
 528                 else
 529                         live_preview_pause(ud);
 530 #endif
 531         }
 532         else
 533         {
 534                 GValue *js;
 535
 536                 ud->preview->encode_frame = frame;
 537                 js = ghb_value_dup(ud->settings);
 538                 ghb_settings_set_string(js, "destination", name);
 539                 ghb_settings_set_int(js, "start_frame", ud->preview->frame);
 540                 ud->preview->live_id = 0;
 541                 ghb_add_live_job(js, ud->preview->live_id);
 542                 ghb_start_live_encode();
 543                 ghb_value_free(js);
 544         }
 545 }
 546
 547 void
 548 ghb_live_encode_done(signal_user_data_t *ud, gboolean success)
 549 {
 550         GtkWidget *widget;
 551         GtkWidget *prog;
 552
 553         ud->preview->live_id = -1;
 554         prog = GHB_WIDGET(ud->builder, "live_encode_progress");
 555         if (success &&
 556                 ud->preview->encode_frame == ud->preview->frame)
 557         {
 558                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(prog), "Done");
 559                 gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR(prog), 1);
 560                 ud->preview->encoded[ud->preview->encode_frame] = TRUE;
 561 #if defined(_ENABLE_GST)
 562                 live_preview_start(ud);
 563 #endif
 564                 widget = GHB_WIDGET(ud->builder, "live_progress_box");
 565                 gtk_widget_hide (widget);
 566                 widget = GHB_WIDGET(ud->builder, "live_preview_progress");
 567                 gtk_widget_show (widget);
 568         }
 569         else
 570         {
 571                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(prog), "");
 572                 gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR(prog), 0);
 573                 ud->preview->encoded[ud->preview->encode_frame] = FALSE;
 574         }
 575 }
 576
 577 #if defined(_ENABLE_GST)
 578 G_MODULE_EXPORT gboolean
 579 unlock_progress_cb(signal_user_data_t *ud)
 580 {
 581         ud->preview->progress_lock = FALSE;
 582         // This function is initiated by g_idle_add.  Must return false
 583         // so that it is not called again
 584         return FALSE;
 585 }
 586 #endif
 587
 588 void
 589 ghb_live_preview_progress(signal_user_data_t *ud)
 590 {
 591 #if defined(_ENABLE_GST)
 592         GstFormat fmt = GST_FORMAT_TIME;
 593         gint64 len = -1, pos = -1;
 594
 595         if (ud->preview->state != PREVIEW_STATE_LIVE || ud->preview->seek_lock)
 596                 return;
 597
 598         ud->preview->progress_lock = TRUE;
 599         if (gst_element_query_duration(ud->preview->play, &fmt, &len))
 600         {
 601                 if (len != -1 && fmt == GST_FORMAT_TIME)
 602                 {
 603                         ud->preview->len = len / GST_MSECOND;
 604                 }
 605         }
 606         if (gst_element_query_position(ud->preview->play, &fmt, &pos))
 607         {
 608                 if (pos != -1 && fmt == GST_FORMAT_TIME)
 609                 {
 610                         ud->preview->pos = pos / GST_MSECOND;
 611                 }
 612         }
 613         if (ud->preview->len > 0)
 614         {
 615                 GtkRange *progress;
 616                 gdouble percent;
 617
 618                 percent = (gdouble)ud->preview->pos * 100 / ud->preview->len;
 619                 progress = GTK_RANGE(GHB_WIDGET(ud->builder, "live_preview_progress"));
 620                 gtk_range_set_value(progress, percent);
 621         }
 622         g_idle_add((GSourceFunc)unlock_progress_cb, ud);
 623 #endif
 624 }
 625
 626 #if defined(_ENABLE_GST)
 627 G_MODULE_EXPORT gboolean
 628 unlock_seek_cb(signal_user_data_t *ud)
 629 {
 630         ud->preview->seek_lock = FALSE;
 631         // This function is initiated by g_idle_add.  Must return false
 632         // so that it is not called again
 633         return FALSE;
 634 }
 635 #endif
 636
 637 G_MODULE_EXPORT void
 638 live_preview_seek_cb(GtkWidget *widget, signal_user_data_t *ud)
 639 {
 640 #if defined(_ENABLE_GST)
 641         gdouble dval;
 642         gint64 pos;
 643
 644         if (ud->preview->progress_lock)
 645                 return;
 646
 647         ud->preview->seek_lock = TRUE;
 648         dval = gtk_range_get_value(GTK_RANGE(widget));
 649         pos = ((ud->preview->len * dval) / 100) * GST_MSECOND;
 650         gst_element_seek(ud->preview->play, 1.0,
 651                 GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE,
 652                 GST_SEEK_TYPE_SET, pos,
 653                 GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
 654         g_idle_add((GSourceFunc)unlock_seek_cb, ud);
 655 #endif
 656 }
 657
 658 void
 659 ghb_set_preview_image(signal_user_data_t *ud)
 660 {
 661         GtkWidget *widget;
 662         gint preview_width, preview_height, target_height, width, height;
 663
 664         g_debug("set_preview_button_image ()");
 665         gint titleindex;
 666
 667         live_preview_stop(ud);
 668
 669         titleindex = ghb_settings_combo_int(ud->settings, "title");
 670         if (titleindex < 0) return;
 671         widget = GHB_WIDGET (ud->builder, "preview_frame");
 672         ud->preview->frame = ghb_widget_int(widget) - 1;
 673         if (ud->preview->encoded[ud->preview->frame])
 674         {
 675                 widget = GHB_WIDGET(ud->builder, "live_progress_box");
 676                 gtk_widget_hide (widget);
 677                 widget = GHB_WIDGET(ud->builder, "live_preview_progress");
 678                 gtk_widget_show (widget);
 679         }
 680         else
 681         {
 682                 widget = GHB_WIDGET(ud->builder, "live_preview_progress");
 683                 gtk_widget_hide (widget);
 684                 widget = GHB_WIDGET(ud->builder, "live_progress_box");
 685                 gtk_widget_show (widget);
 686                 widget = GHB_WIDGET(ud->builder, "live_encode_progress");
 687                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(widget), "");
 688                 gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR(widget), 0);
 689         }
 690         if (ud->preview->pix != NULL)
 691                 g_object_unref(ud->preview->pix);
 692
 693         ud->preview->pix =
 694                 ghb_get_preview_image(titleindex, ud->preview->frame,
 695                                                                 ud, &width, &height);
 696         if (ud->preview->pix == NULL) return;
 697         preview_width = gdk_pixbuf_get_width(ud->preview->pix);
 698         preview_height = gdk_pixbuf_get_height(ud->preview->pix);
 699         widget = GHB_WIDGET (ud->builder, "preview_image");
 700         if (preview_width != ud->preview->width ||
 701                 preview_height != ud->preview->height)
 702         {
 703                 gtk_widget_set_size_request(widget, preview_width, preview_height);
 704                 ud->preview->width = preview_width;
 705                 ud->preview->height = preview_height;
 706         }
 707         gdk_draw_pixbuf(
 708                 widget->window, NULL, ud->preview->pix, 0, 0, 0, 0,
 709                 -1, -1, GDK_RGB_DITHER_NONE, 0, 0);
 710
 711         gchar *text = g_strdup_printf("%d x %d", width, height);
 712         widget = GHB_WIDGET (ud->builder, "preview_dims");
 713         gtk_label_set_text(GTK_LABEL(widget), text);
 714         g_free(text);
 715
 716         g_debug("preview %d x %d", preview_width, preview_height);
 717         target_height = MIN(ud->preview->button_height, 200);
 718         height = target_height;
 719         width = preview_width * height / preview_height;
 720         if (width > 400)
 721         {
 722                 width = 400;
 723                 height = preview_height * width / preview_width;
 724         }
 725
 726         if ((height >= 16) && (width >= 16))
 727         {
 728                 GdkPixbuf *scaled_preview;
 729                 scaled_preview = gdk_pixbuf_scale_simple (ud->preview->pix, width,
 730                                                                                                 height, GDK_INTERP_NEAREST);
 731                 if (scaled_preview != NULL)
 732                 {
 733                         widget = GHB_WIDGET (ud->builder, "preview_button_image");
 734                         gtk_image_set_from_pixbuf(GTK_IMAGE(widget), scaled_preview);
 735                         g_object_unref (scaled_preview);
 736                 }
 737         }
 738 }
 739
 740 #if defined(_ENABLE_GST)
 741 G_MODULE_EXPORT gboolean
 742 delayed_expose_cb(signal_user_data_t *ud)
 743 {
 744         GstElement *vsink;
 745         GstXOverlay *xover;
 746
 747         g_object_get(ud->preview->play, "video-sink", &vsink, NULL);
 748         if (vsink == NULL)
 749                 return FALSE;
 750
 751         if (GST_IS_BIN(vsink))
 752                 xover = GST_X_OVERLAY(gst_bin_get_by_interface(
 753                                                                 GST_BIN(vsink), GST_TYPE_X_OVERLAY));
 754         else
 755                 xover = GST_X_OVERLAY(vsink);
 756         gst_x_overlay_expose(xover);
 757         // This function is initiated by g_idle_add.  Must return false
 758         // so that it is not called again
 759         return FALSE;
 760 }
 761 #endif
 762
 763 G_MODULE_EXPORT gboolean
 764 preview_expose_cb(
 765         GtkWidget *widget,
 766         GdkEventExpose *event,
 767         signal_user_data_t *ud)
 768 {
 769 #if defined(_ENABLE_GST)
 770         if (ud->preview->state == PREVIEW_STATE_LIVE)
 771         {
 772                 if (GST_STATE(ud->preview->play) >= GST_STATE_PAUSED)
 773                 {
 774                         GstElement *vsink;
 775                         GstXOverlay *xover;
 776
 777                         g_object_get(ud->preview->play, "video-sink", &vsink, NULL);
 778                         if (GST_IS_BIN(vsink))
 779                                 xover = GST_X_OVERLAY(gst_bin_get_by_interface(
 780                                                                                 GST_BIN(vsink), GST_TYPE_X_OVERLAY));
 781                         else
 782                                 xover = GST_X_OVERLAY(vsink);
 783                         gst_x_overlay_expose(xover);
 784                         // For some reason, the exposed region doesn't always get
 785                         // cleaned up here. But a delayed gst_x_overlay_expose()
 786                         // takes care of it.
 787                         g_idle_add((GSourceFunc)delayed_expose_cb, ud);
 788                         return FALSE;
 789                 }
 790                 return TRUE;
 791         }
 792 #endif
 793
 794         if (ud->preview->pix != NULL)
 795         {
 796                 gdk_draw_pixbuf(
 797                         widget->window, NULL, ud->preview->pix, 0, 0, 0, 0,
 798                         -1, -1, GDK_RGB_DITHER_NONE, 0, 0);
 799         }
 800         return TRUE;
 801 }
 802
 803 G_MODULE_EXPORT void
 804 preview_button_size_allocate_cb(GtkWidget *widget, GtkAllocation *allocation, signal_user_data_t *ud)
 805 {
 806         g_debug("allocate %d x %d", allocation->width, allocation->height);
 807         if (ud->preview->button_width == allocation->width &&
 808                 ud->preview->button_height == allocation->height)
 809         {
 810                 // Nothing to do. Bug out.
 811                 g_debug("nothing to do");
 812                 return;
 813         }
 814         g_debug("prev allocate %d x %d", ud->preview->button_width,
 815                         ud->preview->button_height);
 816         ud->preview->button_width = allocation->width;
 817         ud->preview->button_height = allocation->height;
 818         ghb_set_preview_image(ud);
 819 }
 820
 821 static void
 822 set_visible(GtkWidget *widget, gboolean visible)
 823 {
 824         if (visible)
 825         {
 826                 gtk_widget_show_now(widget);
 827         }
 828         else
 829         {
 830                 gtk_widget_hide(widget);
 831         }
 832 }
 833
 834 G_MODULE_EXPORT void
 835 preview_button_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 836 {
 837         gint titleindex;
 838
 839         g_debug("preview_button_clicked_cb()");
 840         titleindex = ghb_settings_combo_int(ud->settings, "title");
 841         if (titleindex >= 0)
 842         {
 843                 gint x, y;
 844                 GtkWidget *widget = GHB_WIDGET (ud->builder, "preview_window");
 845                 x = ghb_settings_get_int(ud->settings, "preview_x");
 846                 y = ghb_settings_get_int(ud->settings, "preview_y");
 847                 if (x >= 0 && y >= 0)
 848                         gtk_window_move(GTK_WINDOW(widget), x, y);
 849                 set_visible(widget, gtk_toggle_button_get_active(
 850                                                         GTK_TOGGLE_BUTTON(xwidget)));
 851         }
 852         ghb_widget_to_setting (ud->settings, xwidget);
 853         ghb_check_dependency(ud, xwidget, NULL);
 854         const gchar *name = gtk_widget_get_name(xwidget);
 855         ghb_pref_save(ud->settings, name);
 856 }
 857
 858 G_MODULE_EXPORT void
 859 picture_settings_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 860 {
 861         GtkWidget *widget, *toggle;
 862         gboolean active, hide_settings;
 863         gint x, y;
 864
 865         g_debug("picture_settings_clicked_cb()");
 866         toggle = GHB_WIDGET (ud->builder, "hide_settings");
 867         hide_settings = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(toggle));
 868
 869         widget = GHB_WIDGET (ud->builder, "settings_window");
 870         active = gtk_toggle_tool_button_get_active(GTK_TOGGLE_TOOL_BUTTON(xwidget));
 871         x = ghb_settings_get_int(ud->settings, "settings_x");
 872         y = ghb_settings_get_int(ud->settings, "settings_y");
 873         if (x >= 0 && y >= 0)
 874                 gtk_window_move(GTK_WINDOW(widget), x, y);
 875         set_visible(widget, active && !hide_settings);
 876         if (ghb_settings_get_boolean(ud->settings, "show_preview"))
 877         {
 878                 widget = GHB_WIDGET (ud->builder, "preview_window");
 879                 x = ghb_settings_get_int(ud->settings, "preview_x");
 880                 y = ghb_settings_get_int(ud->settings, "preview_y");
 881                 if (x >= 0 && y >= 0)
 882                         gtk_window_move(GTK_WINDOW(widget), x, y);
 883                 set_visible(widget, active);
 884                 // The window may be hidden behind the main window, raise it
 885                 if (active)
 886                         gtk_window_present(GTK_WINDOW(widget));
 887         }
 888 }
 889
 890 G_MODULE_EXPORT void
 891 picture_settings_alt_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 892 {
 893         GtkWidget *toggle;
 894         gboolean active;
 895
 896         g_debug("picture_settings_alt_clicked_cb()");
 897         toggle = GHB_WIDGET (ud->builder, "show_picture");
 898         active = gtk_toggle_tool_button_get_active(GTK_TOGGLE_TOOL_BUTTON(toggle));
 899         gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(toggle), !active);
 900 }
 901
 902 static gboolean
 903 go_full(signal_user_data_t *ud)
 904 {
 905         GtkWindow *window;
 906         window = GTK_WINDOW(GHB_WIDGET (ud->builder, "preview_window"));
 907         gtk_window_fullscreen(window);
 908         ghb_set_preview_image(ud);
 909         return FALSE;
 910 }
 911
 912 G_MODULE_EXPORT void
 913 fullscreen_clicked_cb(GtkWidget *toggle, signal_user_data_t *ud)
 914 {
 915         gboolean active;
 916         GtkWindow *window;
 917
 918         g_debug("fullscreen_clicked_cb()");
 919         ghb_widget_to_setting (ud->settings, toggle);
 920         ghb_check_dependency(ud, toggle, NULL);
 921         const gchar *name = gtk_widget_get_name(toggle);
 922         ghb_pref_save(ud->settings, name);
 923
 924         window = GTK_WINDOW(GHB_WIDGET (ud->builder, "preview_window"));
 925         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(toggle));
 926         if (active)
 927         {
 928                 gtk_window_set_resizable(window, TRUE);
 929                 gtk_button_set_label(GTK_BUTTON(toggle), "Windowed");
 930                 // Changing resizable property doesn't take effect immediately
 931                 // need to delay fullscreen till after this callback returns
 932                 // to mainloop
 933                 g_idle_add((GSourceFunc)go_full, ud);
 934         }
 935         else
 936         {
 937                 gtk_window_unfullscreen(window);
 938                 gtk_window_set_resizable(window, FALSE);
 939                 gtk_button_set_label(GTK_BUTTON(toggle), "Fullscreen");
 940                 ghb_set_preview_image(ud);
 941         }
 942 }
 943
 944 G_MODULE_EXPORT void
 945 picture_settings_alt2_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 946 {
 947         GtkWidget *toggle;
 948         gboolean active;
 949         GtkWidget *window;
 950
 951         g_debug("picture_settings_alt2_clicked_cb()");
 952         toggle = GHB_WIDGET (ud->builder, "hide_settings");
 953         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(toggle));
 954         window = GHB_WIDGET(ud->builder, "settings_window");
 955         if (!active)
 956         {
 957                 gtk_button_set_label(GTK_BUTTON(toggle), "Hide Settings");
 958                 gtk_widget_set_tooltip_text(toggle,
 959                         "Hide the picture settings window while "
 960                         "leaving the preview visible.");
 961                 gtk_widget_show(window);
 962         }
 963         else
 964         {
 965                 gtk_button_set_label(GTK_BUTTON(toggle), "Show Settings");
 966                 gtk_widget_set_tooltip_text(toggle, "Show picture settings.");
 967                 gtk_widget_hide(window);
 968         }
 969 }
 970
 971 G_MODULE_EXPORT void
 972 preview_frame_value_changed_cb(GtkWidget *widget, signal_user_data_t *ud)
 973 {
 974         if (ud->preview->live_id >= 0)
 975         {
 976                 ghb_stop_live_encode();
 977                 ud->preview->live_id = -1;
 978                 ud->preview->encode_frame = -1;
 979         }
 980         ghb_set_preview_image(ud);
 981 }
 982
 983 G_MODULE_EXPORT gboolean
 984 preview_window_delete_cb(
 985         GtkWidget *widget,
 986         GdkEvent *event,
 987         signal_user_data_t *ud)
 988 {
 989         live_preview_stop(ud);
 990         widget = GHB_WIDGET (ud->builder, "show_picture");
 991         gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(widget), FALSE);
 992         return TRUE;
 993 }
 994
 995 G_MODULE_EXPORT gboolean
 996 settings_window_delete_cb(
 997         GtkWidget *widget,
 998         GdkEvent *event,
 999         signal_user_data_t *ud)
1000 {
1001         live_preview_stop(ud);
1002         widget = GHB_WIDGET (ud->builder, "show_picture");
1003         gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(widget), FALSE);
1004
1005         return TRUE;
1006 }
1007
1008 G_MODULE_EXPORT void
1009 preview_duration_changed_cb(GtkWidget *widget, signal_user_data_t *ud)
1010 {
1011         g_debug("preview_duration_changed_cb ()");
1012         ghb_live_reset(ud);
1013         ghb_widget_to_setting (ud->settings, widget);
1014         ghb_check_dependency(ud, widget, NULL);
1015         const gchar *name = gtk_widget_get_name(widget);
1016         ghb_pref_save(ud->settings, name);
1017 }
1018
1019 static guint hud_timeout_id = 0;
1020
1021 static gboolean
1022 hud_timeout(signal_user_data_t *ud)
1023 {
1024         GtkWidget *widget;
1025
1026         g_debug("hud_timeout()");
1027         widget = GHB_WIDGET(ud->builder, "preview_hud");
1028         gtk_widget_hide(widget);
1029         hud_timeout_id = 0;
1030         return FALSE;
1031 }
1032
1033 G_MODULE_EXPORT gboolean
1034 hud_enter_cb(
1035         GtkWidget *widget,
1036         GdkEventCrossing *event,
1037         signal_user_data_t *ud)
1038 {
1039         g_debug("hud_enter_cb()");
1040         if (hud_timeout_id != 0)
1041         {
1042                 GMainContext *mc;
1043                 GSource *source;
1044
1045                 mc = g_main_context_default();
1046                 source = g_main_context_find_source_by_id(mc, hud_timeout_id);
1047                 if (source != NULL)
1048                         g_source_destroy(source);
1049         }
1050         widget = GHB_WIDGET(ud->builder, "preview_hud");
1051         gtk_widget_show(widget);
1052         hud_timeout_id = 0;
1053         return FALSE;
1054 }
1055
1056 G_MODULE_EXPORT gboolean
1057 preview_leave_cb(
1058         GtkWidget *widget,
1059         GdkEventCrossing *event,
1060         signal_user_data_t *ud)
1061 {
1062         g_debug("hud_leave_cb()");
1063         if (hud_timeout_id != 0)
1064         {
1065                 GMainContext *mc;
1066                 GSource *source;
1067
1068                 mc = g_main_context_default();
1069                 source = g_main_context_find_source_by_id(mc, hud_timeout_id);
1070                 if (source != NULL)
1071                         g_source_destroy(source);
1072         }
1073         hud_timeout_id = g_timeout_add(300, (GSourceFunc)hud_timeout, ud);
1074         return FALSE;
1075 }
1076
1077 G_MODULE_EXPORT gboolean
1078 preview_motion_cb(
1079         GtkWidget *widget,
1080         GdkEventMotion *event,
1081         signal_user_data_t *ud)
1082 {
1083         //g_debug("hud_motion_cb %d", hud_timeout_id);
1084         if (hud_timeout_id != 0)
1085         {
1086                 GMainContext *mc;
1087                 GSource *source;
1088
1089                 mc = g_main_context_default();
1090                 source = g_main_context_find_source_by_id(mc, hud_timeout_id);
1091                 if (source != NULL)
1092                         g_source_destroy(source);
1093         }
1094         widget = GHB_WIDGET(ud->builder, "preview_hud");
1095         if (!GTK_WIDGET_VISIBLE(widget))
1096         {
1097                 gtk_widget_show(widget);
1098         }
1099         hud_timeout_id = g_timeout_add_seconds(4, (GSourceFunc)hud_timeout, ud);
1100         return FALSE;
1101 }
1102
1103 GdkDrawable*
1104 ghb_curved_rect_mask(gint width, gint height, gint radius)
1105 {
1106         GdkDrawable *shape;
1107         cairo_t *cr;
1108         double w, h;
1109
1110         if (!width || !height)
1111                 return NULL;
1112
1113         shape = (GdkDrawable *)gdk_pixmap_new (NULL, width, height, 1);
1114
1115         cr = gdk_cairo_create (shape);
1116
1117         w = width;
1118         h = height;
1119         if (radius > width / 2)
1120                 radius = width / 2;
1121         if (radius > height / 2)
1122                 radius = height / 2;
1123
1124         // fill shape with black
1125         cairo_save(cr);
1126         cairo_rectangle (cr, 0, 0, width, height);
1127         cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
1128         cairo_fill (cr);
1129         cairo_restore (cr);
1130
1131         cairo_move_to  (cr, 0, radius);
1132         cairo_curve_to (cr, 0 , 0, 0 , 0, radius, 0);
1133         cairo_line_to (cr, w - radius, 0);
1134         cairo_curve_to (cr, w, 0, w, 0, w, radius);
1135         cairo_line_to (cr, w , h - radius);
1136         cairo_curve_to (cr, w, h, w, h, w - radius, h);
1137         cairo_line_to (cr, 0 + radius, h);
1138         cairo_curve_to (cr, 0, h, 0, h, 0, h - radius);
1139
1140         cairo_close_path(cr);
1141
1142         cairo_set_source_rgb(cr, 1, 1, 1);
1143         cairo_fill(cr);
1144
1145         cairo_destroy(cr);
1146
1147         return shape;
1148 }
1149
1150 G_MODULE_EXPORT void
1151 preview_hud_size_alloc_cb(
1152         GtkWidget *widget,
1153         GtkAllocation *allocation,
1154         signal_user_data_t *ud)
1155 {
1156         GdkDrawable *shape;
1157
1158         //g_message("preview_hud_size_alloc_cb()");
1159         if (GTK_WIDGET_VISIBLE(widget) && allocation->height > 50)
1160         {
1161                 shape = ghb_curved_rect_mask(allocation->width,
1162                                                                         allocation->height, allocation->height/4);
1163                 if (shape != NULL)
1164                 {
1165                         gtk_widget_shape_combine_mask(widget, shape, 0, 0);
1166                         gdk_pixmap_unref(shape);
1167                 }
1168         }
1169 }
1170
1171 G_MODULE_EXPORT gboolean
1172 preview_configure_cb(
1173         GtkWidget *widget,
1174         GdkEventConfigure *event,
1175         signal_user_data_t *ud)
1176 {
1177         gint x, y;
1178
1179         //g_message("preview_configure_cb()");
1180         if (GTK_WIDGET_VISIBLE(widget))
1181         {
1182                 gtk_window_get_position(GTK_WINDOW(widget), &x, &y);
1183                 ghb_settings_set_int(ud->settings, "preview_x", x);
1184                 ghb_settings_set_int(ud->settings, "preview_y", y);
1185                 ghb_pref_set(ud->settings, "preview_x");
1186                 ghb_pref_set(ud->settings, "preview_y");
1187                 ghb_prefs_store();
1188         }
1189         return FALSE;
1190 }
1191
1192 G_MODULE_EXPORT gboolean
1193 settings_configure_cb(
1194         GtkWidget *widget,
1195         GdkEventConfigure *event,
1196         signal_user_data_t *ud)
1197 {
1198         gint x, y;
1199
1200         //g_message("settings_configure_cb()");
1201         if (GTK_WIDGET_VISIBLE(widget))
1202         {
1203                 gtk_window_get_position(GTK_WINDOW(widget), &x, &y);
1204                 ghb_settings_set_int(ud->settings, "settings_x", x);
1205                 ghb_settings_set_int(ud->settings, "settings_y", y);
1206                 ghb_pref_set(ud->settings, "settings_x");
1207                 ghb_pref_set(ud->settings, "settings_y");
1208                 ghb_prefs_store();
1209         }
1210         return FALSE;
1211 }
1212