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, 128);
 718         height = target_height;
 719         width = preview_width * height / preview_height;
 720
 721         if ((height >= 16) && (width >= 16))
 722         {
 723                 GdkPixbuf *scaled_preview;
 724                 scaled_preview = gdk_pixbuf_scale_simple (ud->preview->pix, width,
 725                                                                                                 height, GDK_INTERP_NEAREST);
 726                 if (scaled_preview != NULL)
 727                 {
 728                         widget = GHB_WIDGET (ud->builder, "preview_button_image");
 729                         gtk_image_set_from_pixbuf(GTK_IMAGE(widget), scaled_preview);
 730                         g_object_unref (scaled_preview);
 731                 }
 732         }
 733 }
 734
 735 #if defined(_ENABLE_GST)
 736 G_MODULE_EXPORT gboolean
 737 delayed_expose_cb(signal_user_data_t *ud)
 738 {
 739         GstElement *vsink;
 740         GstXOverlay *xover;
 741
 742         g_object_get(ud->preview->play, "video-sink", &vsink, NULL);
 743         if (vsink == NULL)
 744                 return FALSE;
 745
 746         if (GST_IS_BIN(vsink))
 747                 xover = GST_X_OVERLAY(gst_bin_get_by_interface(
 748                                                                 GST_BIN(vsink), GST_TYPE_X_OVERLAY));
 749         else
 750                 xover = GST_X_OVERLAY(vsink);
 751         gst_x_overlay_expose(xover);
 752         // This function is initiated by g_idle_add.  Must return false
 753         // so that it is not called again
 754         return FALSE;
 755 }
 756 #endif
 757
 758 G_MODULE_EXPORT gboolean
 759 preview_expose_cb(
 760         GtkWidget *widget,
 761         GdkEventExpose *event,
 762         signal_user_data_t *ud)
 763 {
 764 #if defined(_ENABLE_GST)
 765         if (ud->preview->state == PREVIEW_STATE_LIVE)
 766         {
 767                 if (GST_STATE(ud->preview->play) >= GST_STATE_PAUSED)
 768                 {
 769                         GstElement *vsink;
 770                         GstXOverlay *xover;
 771
 772                         g_object_get(ud->preview->play, "video-sink", &vsink, NULL);
 773                         if (GST_IS_BIN(vsink))
 774                                 xover = GST_X_OVERLAY(gst_bin_get_by_interface(
 775                                                                                 GST_BIN(vsink), GST_TYPE_X_OVERLAY));
 776                         else
 777                                 xover = GST_X_OVERLAY(vsink);
 778                         gst_x_overlay_expose(xover);
 779                         // For some reason, the exposed region doesn't always get
 780                         // cleaned up here. But a delayed gst_x_overlay_expose()
 781                         // takes care of it.
 782                         g_idle_add((GSourceFunc)delayed_expose_cb, ud);
 783                         return FALSE;
 784                 }
 785                 return TRUE;
 786         }
 787 #endif
 788
 789         if (ud->preview->pix != NULL)
 790         {
 791                 gdk_draw_pixbuf(
 792                         widget->window, NULL, ud->preview->pix, 0, 0, 0, 0,
 793                         -1, -1, GDK_RGB_DITHER_NONE, 0, 0);
 794         }
 795         return TRUE;
 796 }
 797
 798 G_MODULE_EXPORT void
 799 preview_button_size_allocate_cb(GtkWidget *widget, GtkAllocation *allocation, signal_user_data_t *ud)
 800 {
 801         g_debug("allocate %d x %d", allocation->width, allocation->height);
 802         if (ud->preview->button_width == allocation->width &&
 803                 ud->preview->button_height == allocation->height)
 804         {
 805                 // Nothing to do. Bug out.
 806                 g_debug("nothing to do");
 807                 return;
 808         }
 809         g_debug("prev allocate %d x %d", ud->preview->button_width,
 810                         ud->preview->button_height);
 811         ud->preview->button_width = allocation->width;
 812         ud->preview->button_height = allocation->height;
 813         ghb_set_preview_image(ud);
 814 }
 815
 816 static void
 817 set_visible(GtkWidget *widget, gboolean visible)
 818 {
 819         if (visible)
 820         {
 821                 gtk_widget_show_now(widget);
 822         }
 823         else
 824         {
 825                 gtk_widget_hide(widget);
 826         }
 827 }
 828
 829 G_MODULE_EXPORT void
 830 preview_button_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 831 {
 832         gint titleindex;
 833
 834         g_debug("preview_button_clicked_cb()");
 835         titleindex = ghb_settings_combo_int(ud->settings, "title");
 836         if (titleindex >= 0)
 837         {
 838                 gint x, y;
 839                 GtkWidget *widget = GHB_WIDGET (ud->builder, "preview_window");
 840                 x = ghb_settings_get_int(ud->settings, "preview_x");
 841                 y = ghb_settings_get_int(ud->settings, "preview_y");
 842                 if (x >= 0 && y >= 0)
 843                         gtk_window_move(GTK_WINDOW(widget), x, y);
 844                 set_visible(widget, gtk_toggle_button_get_active(
 845                                                         GTK_TOGGLE_BUTTON(xwidget)));
 846         }
 847         ghb_widget_to_setting (ud->settings, xwidget);
 848         ghb_check_dependency(ud, xwidget);
 849         const gchar *name = gtk_widget_get_name(xwidget);
 850         ghb_pref_save(ud->settings, name);
 851 }
 852
 853 G_MODULE_EXPORT void
 854 picture_settings_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 855 {
 856         GtkWidget *widget;
 857         gboolean active;
 858         gint x, y;
 859
 860         g_debug("picture_settings_clicked_cb()");
 861         widget = GHB_WIDGET (ud->builder, "settings_window");
 862         active = gtk_toggle_tool_button_get_active(GTK_TOGGLE_TOOL_BUTTON(xwidget));
 863         x = ghb_settings_get_int(ud->settings, "settings_x");
 864         y = ghb_settings_get_int(ud->settings, "settings_y");
 865         if (x >= 0 && y >= 0)
 866                 gtk_window_move(GTK_WINDOW(widget), x, y);
 867         set_visible(widget, active);
 868         if (ghb_settings_get_boolean(ud->settings, "show_preview"))
 869         {
 870                 widget = GHB_WIDGET (ud->builder, "preview_window");
 871                 x = ghb_settings_get_int(ud->settings, "preview_x");
 872                 y = ghb_settings_get_int(ud->settings, "preview_y");
 873                 if (x >= 0 && y >= 0)
 874                         gtk_window_move(GTK_WINDOW(widget), x, y);
 875                 set_visible(widget, active);
 876                 // The window may be hidden behind the main window, raise it
 877                 if (active)
 878                         gtk_window_present(GTK_WINDOW(widget));
 879         }
 880 }
 881
 882 G_MODULE_EXPORT void
 883 picture_settings_alt_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 884 {
 885         GtkWidget *toggle;
 886         gboolean active;
 887
 888         g_debug("picture_settings_alt_clicked_cb()");
 889         toggle = GHB_WIDGET (ud->builder, "show_picture");
 890         active = gtk_toggle_tool_button_get_active(GTK_TOGGLE_TOOL_BUTTON(toggle));
 891         gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(toggle), !active);
 892 }
 893
 894 static gboolean
 895 go_full(signal_user_data_t *ud)
 896 {
 897         GtkWindow *window;
 898         window = GTK_WINDOW(GHB_WIDGET (ud->builder, "preview_window"));
 899         gtk_window_fullscreen(window);
 900         ghb_set_preview_image(ud);
 901         return FALSE;
 902 }
 903
 904 G_MODULE_EXPORT void
 905 fullscreen_clicked_cb(GtkWidget *toggle, signal_user_data_t *ud)
 906 {
 907         gboolean active;
 908         GtkWindow *window;
 909
 910         g_debug("fullscreen_clicked_cb()");
 911         ghb_widget_to_setting (ud->settings, toggle);
 912         ghb_check_dependency(ud, toggle);
 913         const gchar *name = gtk_widget_get_name(toggle);
 914         ghb_pref_save(ud->settings, name);
 915
 916         window = GTK_WINDOW(GHB_WIDGET (ud->builder, "preview_window"));
 917         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(toggle));
 918         if (active)
 919         {
 920                 gtk_window_set_resizable(window, TRUE);
 921                 gtk_button_set_label(GTK_BUTTON(toggle), "Windowed");
 922                 // Changing resizable property doesn't take effect immediately
 923                 // need to delay fullscreen till after this callback returns
 924                 // to mainloop
 925                 g_idle_add((GSourceFunc)go_full, ud);
 926         }
 927         else
 928         {
 929                 gtk_window_unfullscreen(window);
 930                 gtk_window_set_resizable(window, FALSE);
 931                 gtk_button_set_label(GTK_BUTTON(toggle), "Fullscreen");
 932                 ghb_set_preview_image(ud);
 933         }
 934 }
 935
 936 G_MODULE_EXPORT void
 937 picture_settings_alt2_clicked_cb(GtkWidget *xwidget, signal_user_data_t *ud)
 938 {
 939         GtkWidget *toggle;
 940         gboolean active;
 941         gint signal_id;
 942         gint handler_id = 0;
 943
 944         g_debug("picture_settings_alt2_clicked_cb()");
 945         toggle = GHB_WIDGET (ud->builder, "show_picture");
 946         active = gtk_toggle_tool_button_get_active(GTK_TOGGLE_TOOL_BUTTON(toggle));
 947         if (active)
 948         {
 949                 // I don't want deleting the settings window to also remove the
 950                 // preview window, but changing the toggle will do this, so temporarily
 951                 // ignore the toggled signal
 952                 signal_id = g_signal_lookup("toggled", GTK_TYPE_TOGGLE_TOOL_BUTTON);
 953                 if (signal_id > 0)
 954                 {
 955                         // Valid signal id found.  This should always succeed.
 956                         handler_id = g_signal_handler_find((gpointer)toggle,
 957                                                                                                 G_SIGNAL_MATCH_ID,
 958                                                                                                 signal_id, 0, 0, 0, 0);
 959                         if (handler_id > 0)
 960                         {
 961                                 // This should also always succeed
 962                                 g_signal_handler_block ((gpointer)toggle, handler_id);
 963                         }
 964                 }
 965         }
 966
 967         GtkWidget *widget = GHB_WIDGET (ud->builder, "settings_window");
 968         gint x, y;
 969
 970         x = ghb_settings_get_int(ud->settings, "settings_x");
 971         y = ghb_settings_get_int(ud->settings, "settings_y");
 972         if (x >= 0 && y >= 0)
 973                 gtk_window_move(GTK_WINDOW(widget), x, y);
 974         set_visible(widget, !active);
 975         gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(toggle), !active);
 976
 977         if (handler_id > 0)
 978         {
 979                 g_signal_handler_unblock ((gpointer)toggle, handler_id);
 980         }
 981 }
 982
 983 G_MODULE_EXPORT void
 984 preview_frame_value_changed_cb(GtkWidget *widget, signal_user_data_t *ud)
 985 {
 986         if (ud->preview->live_id >= 0)
 987         {
 988                 ghb_stop_live_encode();
 989                 ud->preview->live_id = -1;
 990                 ud->preview->encode_frame = -1;
 991         }
 992         ghb_set_preview_image(ud);
 993 }
 994
 995 G_MODULE_EXPORT gboolean
 996 preview_window_delete_cb(
 997         GtkWidget *widget,
 998         GdkEvent *event,
 999         signal_user_data_t *ud)
1000 {
1001         live_preview_stop(ud);
1002         gtk_widget_hide(widget);
1003         return TRUE;
1004 }
1005
1006 G_MODULE_EXPORT gboolean
1007 settings_window_delete_cb(
1008         GtkWidget *widget,
1009         GdkEvent *event,
1010         signal_user_data_t *ud)
1011 {
1012         gint signal_id;
1013         gint handler_id = 0;
1014
1015         gtk_widget_hide(widget);
1016         widget = GHB_WIDGET (ud->builder, "show_picture");
1017
1018         // I don't want deleting the settings window to also remove the
1019         // preview window, but changing the toggle will do this, so temporarily
1020         // ignore the toggled signal
1021         signal_id = g_signal_lookup("toggled", GTK_TYPE_TOGGLE_TOOL_BUTTON);
1022         if (signal_id > 0)
1023         {
1024                 // Valid signal id found.  This should always succeed.
1025                 handler_id = g_signal_handler_find((gpointer)widget, G_SIGNAL_MATCH_ID,
1026                                                                                         signal_id, 0, 0, 0, 0);
1027                 if (handler_id > 0)
1028                 {
1029                         // This should also always succeed
1030                         g_signal_handler_block ((gpointer)widget, handler_id);
1031                 }
1032         }
1033
1034         gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(widget), FALSE);
1035
1036         if (handler_id > 0)
1037         {
1038                 g_signal_handler_unblock ((gpointer)widget, handler_id);
1039         }
1040         return TRUE;
1041 }
1042
1043 G_MODULE_EXPORT void
1044 preview_duration_changed_cb(GtkWidget *widget, signal_user_data_t *ud)
1045 {
1046         g_debug("preview_duration_changed_cb ()");
1047         ghb_live_reset(ud);
1048         ghb_widget_to_setting (ud->settings, widget);
1049         ghb_check_dependency(ud, widget);
1050         const gchar *name = gtk_widget_get_name(widget);
1051         ghb_pref_save(ud->settings, name);
1052 }
1053
1054 static guint hud_timeout_id = 0;
1055
1056 static gboolean
1057 hud_timeout(signal_user_data_t *ud)
1058 {
1059         GtkWidget *widget;
1060
1061         g_debug("hud_timeout()");
1062         widget = GHB_WIDGET(ud->builder, "preview_hud");
1063         gtk_widget_hide(widget);
1064         hud_timeout_id = 0;
1065         return FALSE;
1066 }
1067
1068 G_MODULE_EXPORT gboolean
1069 hud_enter_cb(
1070         GtkWidget *widget,
1071         GdkEventCrossing *event,
1072         signal_user_data_t *ud)
1073 {
1074         g_debug("hud_enter_cb()");
1075         if (hud_timeout_id != 0)
1076         {
1077                 GMainContext *mc;
1078                 GSource *source;
1079
1080                 mc = g_main_context_default();
1081                 source = g_main_context_find_source_by_id(mc, hud_timeout_id);
1082                 if (source != NULL)
1083                         g_source_destroy(source);
1084         }
1085         widget = GHB_WIDGET(ud->builder, "preview_hud");
1086         gtk_widget_show(widget);
1087         hud_timeout_id = 0;
1088         return FALSE;
1089 }
1090
1091 G_MODULE_EXPORT gboolean
1092 preview_leave_cb(
1093         GtkWidget *widget,
1094         GdkEventCrossing *event,
1095         signal_user_data_t *ud)
1096 {
1097         g_debug("hud_leave_cb()");
1098         if (hud_timeout_id != 0)
1099         {
1100                 GMainContext *mc;
1101                 GSource *source;
1102
1103                 mc = g_main_context_default();
1104                 source = g_main_context_find_source_by_id(mc, hud_timeout_id);
1105                 if (source != NULL)
1106                         g_source_destroy(source);
1107         }
1108         hud_timeout_id = g_timeout_add(300, (GSourceFunc)hud_timeout, ud);
1109         return FALSE;
1110 }
1111
1112 G_MODULE_EXPORT gboolean
1113 preview_motion_cb(
1114         GtkWidget *widget,
1115         GdkEventMotion *event,
1116         signal_user_data_t *ud)
1117 {
1118         //g_debug("hud_motion_cb %d", hud_timeout_id);
1119         if (hud_timeout_id != 0)
1120         {
1121                 GMainContext *mc;
1122                 GSource *source;
1123
1124                 mc = g_main_context_default();
1125                 source = g_main_context_find_source_by_id(mc, hud_timeout_id);
1126                 if (source != NULL)
1127                         g_source_destroy(source);
1128         }
1129         widget = GHB_WIDGET(ud->builder, "preview_hud");
1130         if (!GTK_WIDGET_VISIBLE(widget))
1131         {
1132                 gtk_widget_show(widget);
1133         }
1134         hud_timeout_id = g_timeout_add_seconds(4, (GSourceFunc)hud_timeout, ud);
1135         return FALSE;
1136 }
1137
1138 GdkDrawable*
1139 ghb_curved_rect_mask(gint width, gint height, gint radius)
1140 {
1141         GdkDrawable *shape;
1142         cairo_t *cr;
1143         double w, h;
1144
1145         if (!width || !height)
1146         return NULL;
1147
1148         shape = (GdkDrawable *)gdk_pixmap_new (NULL, width, height, 1);
1149
1150         cr = gdk_cairo_create (shape);
1151
1152         w = width;
1153         h = height;
1154         if (radius > width / 2)
1155                 radius = width / 2;
1156         if (radius > height / 2)
1157                 radius = height / 2;
1158
1159         // fill shape with black
1160         cairo_save(cr);
1161         cairo_rectangle (cr, 0, 0, width, height);
1162         cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
1163         cairo_fill (cr);
1164         cairo_restore (cr);
1165
1166         cairo_move_to  (cr, 0, radius);
1167         cairo_curve_to (cr, 0 , 0, 0 , 0, radius, 0);
1168         cairo_line_to (cr, w - radius, 0);
1169         cairo_curve_to (cr, w, 0, w, 0, w, radius);
1170         cairo_line_to (cr, w , h - radius);
1171         cairo_curve_to (cr, w, h, w, h, w - radius, h);
1172         cairo_line_to (cr, 0 + radius, h);
1173         cairo_curve_to (cr, 0, h, 0, h, 0, h - radius);
1174
1175         cairo_close_path(cr);
1176
1177         cairo_set_source_rgb(cr, 1, 1, 1);
1178         cairo_fill(cr);
1179
1180         cairo_destroy(cr);
1181
1182         return shape;
1183 }
1184
1185 G_MODULE_EXPORT void
1186 preview_hud_size_alloc_cb(
1187         GtkWidget *widget,
1188         GtkAllocation *allocation,
1189         signal_user_data_t *ud)
1190 {
1191         GdkDrawable *shape;
1192
1193         //g_message("preview_hud_size_alloc_cb()");
1194         if (GTK_WIDGET_VISIBLE(widget) && allocation->height > 50)
1195         {
1196                 shape = ghb_curved_rect_mask(allocation->width,
1197                                                                         allocation->height, allocation->height/4);
1198                 if (shape != NULL)
1199                 {
1200                         gtk_widget_shape_combine_mask(widget, shape, 0, 0);
1201                         gdk_pixmap_unref(shape);
1202                 }
1203         }
1204 }
1205
1206 G_MODULE_EXPORT gboolean
1207 preview_configure_cb(
1208         GtkWidget *widget,
1209         GdkEventConfigure *event,
1210         signal_user_data_t *ud)
1211 {
1212         gint x, y;
1213
1214         //g_message("preview_configure_cb()");
1215         if (GTK_WIDGET_VISIBLE(widget))
1216         {
1217                 gtk_window_get_position(GTK_WINDOW(widget), &x, &y);
1218                 ghb_settings_set_int(ud->settings, "preview_x", x);
1219                 ghb_settings_set_int(ud->settings, "preview_y", y);
1220                 ghb_pref_set(ud->settings, "preview_x");
1221                 ghb_pref_set(ud->settings, "preview_y");
1222                 ghb_prefs_store();
1223         }
1224         return FALSE;
1225 }
1226
1227 G_MODULE_EXPORT gboolean
1228 settings_configure_cb(
1229         GtkWidget *widget,
1230         GdkEventConfigure *event,
1231         signal_user_data_t *ud)
1232 {
1233         gint x, y;
1234
1235         //g_message("settings_configure_cb()");
1236         if (GTK_WIDGET_VISIBLE(widget))
1237         {
1238                 gtk_window_get_position(GTK_WINDOW(widget), &x, &y);
1239                 ghb_settings_set_int(ud->settings, "settings_x", x);
1240                 ghb_settings_set_int(ud->settings, "settings_y", y);
1241                 ghb_pref_set(ud->settings, "settings_x");
1242                 ghb_pref_set(ud->settings, "settings_y");
1243                 ghb_prefs_store();
1244         }
1245         return FALSE;
1246 }
1247