mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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391 lines
12 KiB
C
391 lines
12 KiB
C
/*
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* Copyright © 2018 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkgstmediafileprivate.h"
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#include "gtkgstpaintableprivate.h"
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#include <gst/player/gstplayer.h>
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#include <gst/player/gstplayer-g-main-context-signal-dispatcher.h>
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struct _GtkGstMediaFile
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{
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GtkMediaFile parent_instance;
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GstPlayer *player;
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GdkPaintable *paintable;
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};
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struct _GtkGstMediaFileClass
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{
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GtkMediaFileClass parent_class;
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};
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#define TO_GST_TIME(ts) ((ts) * (GST_SECOND / G_USEC_PER_SEC))
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#define FROM_GST_TIME(ts) ((ts) / (GST_SECOND / G_USEC_PER_SEC))
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static void
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gtk_gst_media_file_paintable_snapshot (GdkPaintable *paintable,
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GdkSnapshot *snapshot,
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double width,
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double height)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (paintable);
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gdk_paintable_snapshot (self->paintable, snapshot, width, height);
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}
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static GdkPaintable *
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gtk_gst_media_file_paintable_get_current_image (GdkPaintable *paintable)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (paintable);
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return gdk_paintable_get_current_image (self->paintable);
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}
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static int
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gtk_gst_media_file_paintable_get_intrinsic_width (GdkPaintable *paintable)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (paintable);
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return gdk_paintable_get_intrinsic_width (self->paintable);
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}
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static int
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gtk_gst_media_file_paintable_get_intrinsic_height (GdkPaintable *paintable)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (paintable);
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return gdk_paintable_get_intrinsic_height (self->paintable);
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}
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static double gtk_gst_media_file_paintable_get_intrinsic_aspect_ratio (GdkPaintable *paintable)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (paintable);
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return gdk_paintable_get_intrinsic_aspect_ratio (self->paintable);
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};
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static void
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gtk_gst_media_file_paintable_init (GdkPaintableInterface *iface)
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{
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iface->snapshot = gtk_gst_media_file_paintable_snapshot;
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iface->get_current_image = gtk_gst_media_file_paintable_get_current_image;
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iface->get_intrinsic_width = gtk_gst_media_file_paintable_get_intrinsic_width;
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iface->get_intrinsic_height = gtk_gst_media_file_paintable_get_intrinsic_height;
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iface->get_intrinsic_aspect_ratio = gtk_gst_media_file_paintable_get_intrinsic_aspect_ratio;
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}
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G_DEFINE_TYPE_EXTENDED (GtkGstMediaFile, gtk_gst_media_file, GTK_TYPE_MEDIA_FILE, 0,
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G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
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gtk_gst_media_file_paintable_init))
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void
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g_io_module_load (GIOModule *module)
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{
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g_type_module_use (G_TYPE_MODULE (module));
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g_io_extension_point_implement (GTK_MEDIA_FILE_EXTENSION_POINT_NAME,
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GTK_TYPE_GST_MEDIA_FILE,
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"gstreamer",
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10);
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}
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G_GNUC_NORETURN
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void
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g_io_module_unload (GIOModule *module)
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{
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g_assert_not_reached ();
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}
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char **
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g_io_module_query (void)
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{
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char *eps[] = {
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(char *) GTK_MEDIA_FILE_EXTENSION_POINT_NAME,
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NULL
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};
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return g_strdupv (eps);
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}
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static void
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gtk_gst_media_file_ensure_prepared (GtkGstMediaFile *self)
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{
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GstPlayerMediaInfo *media_info;
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if (gtk_media_stream_is_prepared (GTK_MEDIA_STREAM (self)))
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return;
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media_info = gst_player_get_media_info (self->player);
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if (media_info)
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{
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gtk_media_stream_prepared (GTK_MEDIA_STREAM (self),
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gst_player_media_info_get_audio_streams (media_info) != NULL,
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gst_player_media_info_get_video_streams (media_info) != NULL,
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gst_player_media_info_is_seekable (media_info),
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FROM_GST_TIME (gst_player_media_info_get_duration (media_info)));
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}
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else
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{
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/* Assuming everything exists is better for the user than pretending it doesn't exist.
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* Better to be able to control non-existing audio than not be able to control existing audio.
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*
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* Only for seeking we can't do a thing, because with 0 duration we can't seek anywhere.
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*/
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gtk_media_stream_prepared (GTK_MEDIA_STREAM (self),
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TRUE,
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TRUE,
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FALSE,
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0);
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}
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}
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static void
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gtk_gst_media_file_position_updated_cb (GstPlayer *player,
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GstClockTime time,
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GtkGstMediaFile *self)
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{
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gtk_gst_media_file_ensure_prepared (self);
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gtk_media_stream_update (GTK_MEDIA_STREAM (self), FROM_GST_TIME (time));
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}
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static void
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gtk_gst_media_file_media_info_updated_cb (GstPlayer *player,
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GstClockTime duration,
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GtkGstMediaFile *self)
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{
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gtk_gst_media_file_ensure_prepared (self);
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}
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static void
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gtk_gst_media_file_seek_done_cb (GstPlayer *player,
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GstClockTime time,
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GtkGstMediaFile *self)
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{
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/* if we're not seeking, we're doing the loop seek-back after EOS */
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if (gtk_media_stream_is_seeking (GTK_MEDIA_STREAM (self)))
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gtk_media_stream_seek_success (GTK_MEDIA_STREAM (self));
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gtk_media_stream_update (GTK_MEDIA_STREAM (self), FROM_GST_TIME (time));
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}
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static void
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gtk_gst_media_file_error_cb (GstPlayer *player,
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GError *error,
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GtkGstMediaFile *self)
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{
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if (gtk_media_stream_get_error (GTK_MEDIA_STREAM (self)))
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return;
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gtk_media_stream_gerror (GTK_MEDIA_STREAM (self),
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g_error_copy (error));
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}
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static void
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gtk_gst_media_file_end_of_stream_cb (GstPlayer *player,
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GtkGstMediaFile *self)
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{
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gtk_gst_media_file_ensure_prepared (self);
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if (gtk_media_stream_get_ended (GTK_MEDIA_STREAM (self)))
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return;
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if (gtk_media_stream_get_loop (GTK_MEDIA_STREAM (self)))
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{
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gst_player_seek (self->player, 0);
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return;
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}
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gtk_media_stream_ended (GTK_MEDIA_STREAM (self));
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}
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static void
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gtk_gst_media_file_destroy_player (GtkGstMediaFile *self)
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{
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if (self->player == NULL)
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return;
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g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_media_info_updated_cb, self);
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g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_position_updated_cb, self);
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g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_end_of_stream_cb, self);
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g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_seek_done_cb, self);
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g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_error_cb, self);
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g_object_unref (self->player);
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self->player = NULL;
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}
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static void
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gtk_gst_media_file_create_player (GtkGstMediaFile *file)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (file);
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if (self->player != NULL)
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return;
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self->player = gst_player_new (GST_PLAYER_VIDEO_RENDERER (g_object_ref (self->paintable)),
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gst_player_g_main_context_signal_dispatcher_new (NULL));
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g_signal_connect (self->player, "media-info-updated", G_CALLBACK (gtk_gst_media_file_media_info_updated_cb), self);
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g_signal_connect (self->player, "position-updated", G_CALLBACK (gtk_gst_media_file_position_updated_cb), self);
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g_signal_connect (self->player, "end-of-stream", G_CALLBACK (gtk_gst_media_file_end_of_stream_cb), self);
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g_signal_connect (self->player, "seek-done", G_CALLBACK (gtk_gst_media_file_seek_done_cb), self);
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g_signal_connect (self->player, "error", G_CALLBACK (gtk_gst_media_file_error_cb), self);
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}
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static void
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gtk_gst_media_file_open (GtkMediaFile *media_file)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (media_file);
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GFile *file;
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gtk_gst_media_file_create_player (self);
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file = gtk_media_file_get_file (media_file);
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if (file)
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{
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/* XXX: This is technically incorrect because GFile uris aren't real uris */
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char *uri = g_file_get_uri (file);
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gst_player_set_uri (self->player, uri);
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g_free (uri);
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}
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else
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{
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/* It's an input stream */
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g_assert_not_reached ();
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}
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gst_player_pause (self->player);
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}
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static void
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gtk_gst_media_file_close (GtkMediaFile *file)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (file);
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gtk_gst_media_file_destroy_player (self);
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}
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static gboolean
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gtk_gst_media_file_play (GtkMediaStream *stream)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (stream);
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if (self->player == NULL)
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return FALSE;
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gst_player_play (self->player);
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return TRUE;
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}
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static void
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gtk_gst_media_file_pause (GtkMediaStream *stream)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (stream);
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gst_player_pause (self->player);
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}
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static void
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gtk_gst_media_file_seek (GtkMediaStream *stream,
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gint64 timestamp)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (stream);
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gst_player_seek (self->player, TO_GST_TIME (timestamp));
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}
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static void
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gtk_gst_media_file_update_audio (GtkMediaStream *stream,
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gboolean muted,
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double volume)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (stream);
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gst_player_set_mute (self->player, muted);
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gst_player_set_volume (self->player, volume * volume * volume);
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}
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static void
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gtk_gst_media_file_realize (GtkMediaStream *stream,
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GdkSurface *surface)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (stream);
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gtk_gst_paintable_realize (GTK_GST_PAINTABLE (self->paintable), surface);
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}
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static void
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gtk_gst_media_file_unrealize (GtkMediaStream *stream,
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GdkSurface *surface)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (stream);
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gtk_gst_paintable_unrealize (GTK_GST_PAINTABLE (self->paintable), surface);
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}
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static void
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gtk_gst_media_file_dispose (GObject *object)
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{
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GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (object);
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gtk_gst_media_file_destroy_player (self);
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if (self->paintable)
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{
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g_signal_handlers_disconnect_by_func (self->paintable, gdk_paintable_invalidate_size, self);
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g_signal_handlers_disconnect_by_func (self->paintable, gdk_paintable_invalidate_contents, self);
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g_clear_object (&self->paintable);
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}
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G_OBJECT_CLASS (gtk_gst_media_file_parent_class)->dispose (object);
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}
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static void
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gtk_gst_media_file_class_init (GtkGstMediaFileClass *klass)
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{
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GtkMediaFileClass *file_class = GTK_MEDIA_FILE_CLASS (klass);
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GtkMediaStreamClass *stream_class = GTK_MEDIA_STREAM_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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file_class->open = gtk_gst_media_file_open;
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file_class->close = gtk_gst_media_file_close;
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stream_class->play = gtk_gst_media_file_play;
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stream_class->pause = gtk_gst_media_file_pause;
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stream_class->seek = gtk_gst_media_file_seek;
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stream_class->update_audio = gtk_gst_media_file_update_audio;
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stream_class->realize = gtk_gst_media_file_realize;
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stream_class->unrealize = gtk_gst_media_file_unrealize;
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gobject_class->dispose = gtk_gst_media_file_dispose;
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}
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static void
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gtk_gst_media_file_init (GtkGstMediaFile *self)
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{
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self->paintable = gtk_gst_paintable_new ();
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g_signal_connect_swapped (self->paintable, "invalidate-size", G_CALLBACK (gdk_paintable_invalidate_size), self);
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g_signal_connect_swapped (self->paintable, "invalidate-contents", G_CALLBACK (gdk_paintable_invalidate_contents), self);
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}
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