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parole-gst.c
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parole-gst.c
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/*
* * Copyright (C) 2009-2011 Ali <aliov@xfce.org>
* * Copyright (C) 2012-2017 Simon Steinbeiß <ochosi@xfce.org>
* * Copyright (C) 2012-2020 Sean Davis <bluesabre@xfce.org>
*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <glib.h>
#include <gst/gst.h>
#include <gst/video/videooverlay.h>
#include <gst/video/navigation.h>
#include <gst/audio/streamvolume.h>
#include <gst/pbutils/missing-plugins.h>
#include <gst/pbutils/install-plugins.h>
#include <gst/tag/tag.h>
#include <gst/video/video.h>
#include <gtk/gtk.h>
#ifdef ENABLE_X11
#include <gdk/gdkx.h>
#endif
#include <libxfce4util/libxfce4util.h>
#include "src/gst/gst-enum-types.h"
#include "src/gst/gstmarshal.h"
#include "src/common/parole-common.h"
#include "src/parole-utils.h"
#include "src/gst/parole-gst.h"
#define HIDE_WINDOW_CURSOR_TIMEOUT 3.0f
static void parole_gst_play_file_internal(ParoleGst *gst);
static void parole_gst_change_state(ParoleGst *gst,
GstState new);
static void parole_gst_terminate_internal(ParoleGst *gst);
static GdkPixbuf *parole_gst_tag_list_get_cover_external(ParoleGst *gst);
static GdkPixbuf *parole_gst_tag_list_get_cover_embedded(ParoleGst *gst,
GstTagList *tag_list);
static GdkPixbuf *parole_gst_tag_list_get_cover(ParoleGst *gst,
GstTagList *tag_list);
static gboolean parole_gst_check_dvd_state_change_timeout (gpointer data);
static gboolean parole_gst_dvd_menu_timeout (gpointer data);
typedef enum {
GST_PLAY_FLAG_VIDEO = (1 << 0),
GST_PLAY_FLAG_AUDIO = (1 << 1),
GST_PLAY_FLAG_TEXT = (1 << 2),
GST_PLAY_FLAG_VIS = (1 << 3),
GST_PLAY_FLAG_SOFT_VOLUME = (1 << 4),
GST_PLAY_FLAG_NATIVE_AUDIO = (1 << 5),
GST_PLAY_FLAG_NATIVE_VIDEO = (1 << 6),
GST_PLAY_FLAG_DOWNLOAD = (1 << 7),
GST_PLAY_FLAG_BUFFERING = (1 << 8),
GST_PLAY_FLAG_DEINTERLACE = (1 << 9)
} GstPlayFlags;
typedef enum {
AUTOIMAGESINK,
XIMAGESINK,
XVIMAGESINK,
CLUTTERSINK
} ParoleGstVideoSink;
struct ParoleGstPrivate {
GstElement *playbin;
GstElement *video_sink;
GstElement *audio_sink;
GstBus *bus;
GMutex lock;
GstState state;
GstState target;
ParoleState media_state;
ParoleStream *stream;
gulong tick_id;
GdkPixbuf *logo;
gchar *device;
gpointer conf; /* Specific for ParoleMediaPlayer*/
gboolean terminating;
gboolean enable_tags;
gboolean update_vis;
gboolean with_vis;
gboolean vis_loaded;
gboolean buffering;
gboolean seeking;
gboolean update_color_balance;
gdouble volume;
gboolean use_custom_subtitles;
gchar* custom_subtitles;
ParoleAspectRatio aspect_ratio;
gulong state_change_id;
/*
* xvimage sink has brightness+hue+saturation+contrast.
*/
ParoleGstVideoSink image_sink;
gulong sig1;
gulong sig2;
};
enum {
MEDIA_STATE,
MEDIA_PROGRESSED,
MEDIA_TAG,
MEDIA_SEEKED,
BUFFERING,
ERROR,
DVD_CHAPTER_CHANGE,
DVD_CHAPTER_COUNT_CHANGE,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_VOLUME,
PROP_CONF_OBJ,
PROP_ENABLE_TAGS
};
static gpointer parole_gst_object = NULL;
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_PRIVATE(ParoleGst, parole_gst, GTK_TYPE_WIDGET)
static void
parole_gst_finalize(GObject *object) {
ParoleGst *gst;
gst = PAROLE_GST(object);
TRACE("start");
if (gst->priv->tick_id != 0) {
g_source_remove(gst->priv->tick_id);
gst->priv->tick_id = 0;
}
parole_stream_init_properties(gst->priv->stream);
if ( gst->priv->stream )
g_object_unref(gst->priv->stream);
if ( gst->priv->logo )
g_object_unref(gst->priv->logo);
if ( gst->priv->device )
g_free(gst->priv->device);
g_mutex_clear(&gst->priv->lock);
G_OBJECT_CLASS(parole_gst_parent_class)->finalize(object);
}
static gboolean
parole_gst_configure_event_cb(GtkWidget *widget, GdkEventConfigure *ev, ParoleGst *gst) {
return FALSE;
}
static gboolean
parole_gst_parent_expose_event(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
cairo_paint(cr);
return FALSE;
}
static void
parole_gst_realize(GtkWidget *widget) {
ParoleGst *gst;
GtkAllocation *allocation = g_new0(GtkAllocation, 1);
GdkWindowAttr attr;
#if GTK_CHECK_VERSION(3, 22, 0)
#else
GdkRGBA color;
#endif
gint mask;
gtk_widget_set_realized(widget, TRUE);
gst = PAROLE_GST(widget);
gtk_widget_get_allocation(widget, allocation);
attr.x = allocation->x;
attr.y = allocation->y;
attr.width = allocation->width;
attr.height = allocation->height;
attr.visual = gtk_widget_get_visual(widget);
attr.wclass = GDK_INPUT_OUTPUT;
attr.window_type = GDK_WINDOW_CHILD;
attr.event_mask = gtk_widget_get_events(widget) |
GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_KEY_PRESS_MASK;
mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
gtk_widget_set_window(widget, gdk_window_new(gtk_widget_get_parent_window(widget),
&attr, mask) );
gdk_window_set_user_data(gtk_widget_get_window(widget), widget);
#if GTK_CHECK_VERSION(3, 22, 0)
#else
gdk_rgba_parse(&color, "black");
gdk_window_set_background_rgba(gtk_widget_get_window(widget), &color);
#endif
g_signal_connect(gtk_widget_get_toplevel(widget), "configure_event",
G_CALLBACK(parole_gst_configure_event_cb), gst);
g_signal_connect(gtk_widget_get_parent(gtk_widget_get_parent(widget)), "draw",
G_CALLBACK(parole_gst_parent_expose_event), NULL);
g_free(allocation);
}
static void
parole_gst_show(GtkWidget *widget) {
if ( gtk_widget_get_window(widget) )
gdk_window_show(gtk_widget_get_window(widget));
if ( GTK_WIDGET_CLASS (parole_gst_parent_class)->show )
GTK_WIDGET_CLASS(parole_gst_parent_class)->show(widget);
}
static void
parole_gst_get_video_output_size(ParoleGst *gst, gint *ret_w, gint *ret_h) {
/*
* Default values returned if:
* 1) We are not playing.
* 2) Playing audio.
* 3) Playing video but we don't have its correct size yet.
*/
GtkAllocation *allocation = g_new0(GtkAllocation, 1);
gtk_widget_get_allocation(GTK_WIDGET(gst), allocation);
*ret_w = allocation->width;
*ret_h = allocation->height;
g_free(allocation);
if ( gst->priv->state >= GST_STATE_PAUSED ) {
gboolean has_video;
guint video_w, video_h;
guint video_par_n, video_par_d;
guint dar_n, dar_d;
guint disp_par_n, disp_par_d;
g_object_get(G_OBJECT(gst->priv->stream),
"has-video", &has_video,
"video-width", &video_w,
"video-height", &video_h,
"disp-par-n", &disp_par_n,
"disp-par-d", &disp_par_d,
NULL);
if ( has_video ) {
if ( video_w != 0 && video_h != 0 ) {
switch ( gst->priv->aspect_ratio ) {
case PAROLE_ASPECT_RATIO_NONE:
return;
case PAROLE_ASPECT_RATIO_AUTO:
*ret_w = video_w;
*ret_h = video_h;
return;
case PAROLE_ASPECT_RATIO_SQUARE:
video_par_n = 1;
video_par_d = 1;
break;
case PAROLE_ASPECT_RATIO_16_9:
video_par_n = 16 * video_h;
video_par_d = 9 * video_w;
break;
case PAROLE_ASPECT_RATIO_4_3:
video_par_n = 4 * video_h;
video_par_d = 3 * video_w;
break;
case PAROLE_ASPECT_RATIO_DVB:
video_par_n = 20 * video_h;
video_par_d = 9 * video_w;
break;
default:
return;
}
if ( gst_video_calculate_display_ratio (&dar_n, &dar_d,
video_w, video_h,
video_par_n, video_par_d,
disp_par_n, disp_par_d) ) {
if (video_w % dar_n == 0) {
*ret_w = video_w;
*ret_h =(guint) gst_util_uint64_scale(video_w, dar_d, dar_n);
} else {
*ret_w =(guint) gst_util_uint64_scale(video_h, dar_n, dar_d);
*ret_h = video_h;
}
TRACE("Got best video size %dx%d fraction, %d/%d\n", *ret_w, *ret_h, disp_par_n, disp_par_d);
}
}
}
}
}
static void
parole_gst_size_allocate(GtkWidget *widget, GtkAllocation *allocation) {
#ifdef HAVE_CLUTTER
ParoleGst *gst;
#endif
g_return_if_fail(allocation != NULL);
#ifdef HAVE_CLUTTER
gst = PAROLE_GST(parole_gst_get());
if (gst->priv->image_sink == CLUTTERSINK)
return;
#endif
gtk_widget_set_allocation(widget, allocation);
if (gtk_widget_get_realized(widget)) {
gint w, h;
gdouble ratio, width, height;
w = allocation->width;
h = allocation->height;
parole_gst_get_video_output_size(PAROLE_GST(widget), &w, &h);
width = w;
height = h;
if ( (gdouble) allocation->width / width > allocation->height / height)
ratio = (gdouble) allocation->height / height;
else
ratio = (gdouble) allocation->width / width;
width *= ratio;
height *= ratio;
gdk_window_move_resize(gtk_widget_get_window(widget),
allocation->x + (allocation->width - width)/2,
allocation->y + (allocation->height - height)/2,
width,
height);
gtk_widget_queue_draw(widget);
}
}
static void
parole_gst_set_video_color_balance(ParoleGst *gst) {
GstElement *video_sink;
gint brightness_value;
gint contrast_value;
gint hue_value;
gint saturation_value;
if ( gst->priv->image_sink != XVIMAGESINK )
return;
g_object_get(G_OBJECT(gst->priv->playbin),
"video-sink", &video_sink,
NULL);
if ( !video_sink )
return;
g_object_get(G_OBJECT(gst->priv->conf),
"brightness", &brightness_value,
"contrast", &contrast_value,
"hue", &hue_value,
"saturation", &saturation_value,
NULL);
TRACE("Setting video color balance");
g_object_set(G_OBJECT(video_sink),
"brightness", brightness_value,
"contrast", contrast_value,
"hue", hue_value,
"saturation", saturation_value,
NULL);
g_object_unref(G_OBJECT(video_sink));
gst->priv->update_color_balance = FALSE;
}
static void
parole_gst_set_video_overlay(ParoleGst *gst) {
GstElement *video_sink;
g_object_get(G_OBJECT(gst->priv->playbin),
"video-sink", &video_sink,
NULL);
g_assert(video_sink != NULL);
#ifdef ENABLE_X11
if (GDK_IS_X11_DISPLAY(gdk_display_get_default())) {
if (GDK_IS_WINDOW(gtk_widget_get_window(GTK_WIDGET (gst)))) {
gst_video_overlay_set_window_handle(GST_VIDEO_OVERLAY(video_sink),
GDK_WINDOW_XID(gtk_widget_get_window(GTK_WIDGET(gst))));
}
}
#endif
gst_object_unref(video_sink);
}
static void
parole_gst_query_capabilities(ParoleGst *gst) {
GstQuery *query;
gboolean seekable;
query = gst_query_new_seeking(GST_FORMAT_TIME);
if (gst_element_query(gst->priv->playbin, query)) {
gst_query_parse_seeking(query,
NULL,
&seekable,
NULL,
NULL);
g_object_set(G_OBJECT(gst->priv->stream),
"seekable", seekable,
NULL);
}
gst_query_unref(query);
}
static gboolean
parole_gst_tick_timeout(gpointer data) {
ParoleGst *gst;
GstFormat format = GST_FORMAT_TIME;
gint64 pos;
gint64 value;
gboolean video;
gboolean seekable;
gint64 duration;
gst = PAROLE_GST(data);
g_object_get(G_OBJECT(gst->priv->stream),
"has-video", &video,
"seekable", &seekable,
"duration", &duration,
NULL);
gst_element_query_position(gst->priv->playbin, format, &pos);
if (gst->priv->state == GST_STATE_PLAYING) {
if (duration != 0 && seekable == FALSE) {
parole_gst_query_capabilities(gst);
}
value = pos / GST_SECOND;
if (G_LIKELY(value > 0)) {
g_signal_emit(G_OBJECT(gst), signals[MEDIA_PROGRESSED], 0, gst->priv->stream, value);
}
}
return TRUE;
}
static void
parole_gst_tick(ParoleGst *gst) {
gboolean live;
g_object_get(gst->priv->stream,
"live", &live,
NULL);
if (gst->priv->state >= GST_STATE_PAUSED && !live) {
if (gst->priv->tick_id != 0) {
return;
}
gst->priv->tick_id = g_timeout_add(250, (GSourceFunc)parole_gst_tick_timeout, gst);
} else if (gst->priv->tick_id != 0) {
g_source_remove(gst->priv->tick_id);
gst->priv->tick_id = 0;
}
}
static void
parole_gst_query_duration(ParoleGst *gst) {
gint64 absolute_duration = 0;
gint64 duration = 0;
gboolean live;
GstFormat gst_time = GST_FORMAT_TIME;
gst_element_query_duration(gst->priv->playbin, gst_time, &absolute_duration);
if (absolute_duration < 0) {
absolute_duration = 0;
}
if (gst_time == GST_FORMAT_TIME) {
duration = absolute_duration / GST_SECOND;
live = (absolute_duration == 0);
TRACE("Duration %" G_GINT64_FORMAT ", is_live=%d", duration, live);
g_object_set(G_OBJECT(gst->priv->stream),
"absolute-duration", absolute_duration,
"duration", duration,
"live", live,
NULL);
}
}
static void
parole_gst_set_subtitle_font(ParoleGst *gst) {
gchar *font;
g_object_get(G_OBJECT(gst->priv->conf),
"subtitle-font", &font,
NULL);
TRACE("Setting subtitle font %s\n", font);
g_object_set(G_OBJECT(gst->priv->playbin),
"subtitle-font-desc", font,
NULL);
g_free(font);
}
static void
parole_gst_set_subtitle_encoding(ParoleGst *gst) {
gchar *encoding;
g_object_get(G_OBJECT(gst->priv->conf),
"subtitle-encoding", &encoding,
NULL);
g_object_set(G_OBJECT(gst->priv->playbin),
"subtitle-encoding", encoding,
NULL);
g_free(encoding);
}
static void
parole_gst_load_subtitle(ParoleGst *gst) {
ParoleMediaType type;
gchar *uri;
gchar *sub;
gchar *sub_uri;
gboolean sub_enabled;
g_object_get(G_OBJECT(gst->priv->stream),
"media-type", &type,
NULL);
if ( type != PAROLE_MEDIA_TYPE_LOCAL_FILE)
return;
g_object_get(G_OBJECT(gst->priv->conf),
"enable-subtitle", &sub_enabled,
NULL);
if ( !sub_enabled )
return;
g_object_get(G_OBJECT(gst->priv->stream),
"uri", &uri,
"subtitles", &sub,
NULL);
if ( sub ) {
TRACE("Found subtitle with path %s", sub);
sub_uri = g_filename_to_uri(sub, NULL, NULL);
g_object_set(G_OBJECT(gst->priv->playbin),
"suburi", sub_uri,
NULL);
g_free(sub);
g_free(sub_uri);
}
g_free(uri);
}
static void
parole_gst_get_pad_capabilities(GObject *object, GParamSpec *pspec, ParoleGst *gst) {
GstPad *pad;
GstStructure *st;
GtkAllocation *allocation = g_new0(GtkAllocation, 1);
gint width;
gint height;
guint num;
guint den;
const GValue *value;
GstCaps *caps;
pad = GST_PAD(object);
if ( !GST_IS_PAD (pad) )
return;
caps = gst_pad_get_current_caps(pad);
if ( !caps )
return;
st = gst_caps_get_structure(caps, 0);
if ( st ) {
gst_structure_get_int(st, "width", &width);
gst_structure_get_int(st, "height", &height);
TRACE("Caps width=%d height=%d\n", width, height);
g_object_set(G_OBJECT(gst->priv->stream),
"video-width", width,
"video-height", height,
NULL);
if ((value = gst_structure_get_value(st, "pixel-aspect-ratio"))) {
num =(guint) gst_value_get_fraction_numerator(value),
den =(guint) gst_value_get_fraction_denominator(value);
g_object_set(G_OBJECT(gst->priv->stream),
"disp-par-n", num,
"disp-par-d", den,
NULL);
}
gtk_widget_get_allocation(GTK_WIDGET(gst), allocation);
parole_gst_size_allocate(GTK_WIDGET(gst), allocation);
g_free(allocation);
}
gst_caps_unref(caps);
}
static void
parole_gst_query_info(ParoleGst *gst) {
GstPad *videopad = NULL;
gint n_audio, n_video, i;
g_object_get(G_OBJECT(gst->priv->playbin),
"n-audio", &n_audio,
"n-video", &n_video,
NULL);
g_object_set(G_OBJECT(gst->priv->stream),
"has-video", (n_video > 0),
"has-audio", (n_audio > 0),
NULL);
if (n_video > 0) {
for (i = 0; i < n_video && videopad == NULL; i++)
g_signal_emit_by_name(gst->priv->playbin, "get-video-pad", i, &videopad);
if (videopad) {
GstCaps *caps;
if ((caps = gst_pad_get_current_caps (videopad))) {
parole_gst_get_pad_capabilities(G_OBJECT(videopad), NULL, gst);
gst_caps_unref(caps);
}
g_signal_connect(videopad, "notify::caps",
G_CALLBACK(parole_gst_get_pad_capabilities),
gst);
g_object_unref(videopad);
}
}
if ( n_video == 0 )
gtk_widget_queue_draw(GTK_WIDGET(gst));
}
static void
parole_gst_update_stream_info(ParoleGst *gst) {
TRACE("Updating stream info");
parole_gst_query_info(gst);
}
static void
parole_gst_update_vis(ParoleGst *gst) {
gchar *vis_name;
gint flags;
TRACE("start");
g_object_get(G_OBJECT(gst->priv->conf),
"vis-enabled", &gst->priv->with_vis,
"vis-name", &vis_name,
NULL);
TRACE("Vis name %s enabled %d\n", vis_name, gst->priv->with_vis);
g_object_get(G_OBJECT(gst->priv->playbin),
"flags", &flags,
NULL);
if ( gst->priv->with_vis ) {
GstElement *vis_sink;
flags |= GST_PLAY_FLAG_VIS;
vis_sink = gst_element_factory_make(vis_name, "vis");
if (vis_sink) {
g_object_set(G_OBJECT(gst->priv->playbin),
"vis-plugin", vis_sink,
NULL);
gst->priv->vis_loaded = TRUE;
}
} else {
flags &= ~GST_PLAY_FLAG_VIS;
g_object_set(G_OBJECT(gst->priv->playbin),
"vis-plugin", NULL,
NULL);
gtk_widget_queue_draw(GTK_WIDGET(gst));
gst->priv->vis_loaded = FALSE;
}
g_object_set(G_OBJECT(gst->priv->playbin),
"flags", flags,
NULL);
gst->priv->update_vis = FALSE;
g_free(vis_name);
gtk_widget_queue_draw(GTK_WIDGET(gst));
TRACE("end");
}
static void
parole_gst_evaluate_state (ParoleGst *gst, GstState old, GstState new, GstState pending) {
GtkAllocation *allocation = g_new0(GtkAllocation, 1);
TRACE ("State change new %i old %i pending %i", new, old, pending);
gst->priv->state = new;
parole_gst_tick(gst);
if ( gst->priv->target == new ) {
gtk_widget_queue_draw(GTK_WIDGET(gst));
parole_window_normal_cursor(gtk_widget_get_window(GTK_WIDGET(gst)));
if ( gst->priv->state_change_id != 0 ) {
g_source_remove(gst->priv->state_change_id);
gst->priv->state_change_id = 0;
// If it's a DVD, fire up the menu if nothing happens
if (parole_gst_get_current_stream_type(gst) == PAROLE_MEDIA_TYPE_DVD) {
gst->priv->state_change_id = g_timeout_add_seconds(5,
(GSourceFunc) parole_gst_dvd_menu_timeout,
gst);
}
}
}
switch (gst->priv->state) {
case GST_STATE_PLAYING:
{
gst->priv->media_state = PAROLE_STATE_PLAYING;
TRACE("Playing");
parole_gst_query_capabilities(gst);
parole_gst_query_info(gst);
parole_gst_query_duration(gst);
g_signal_emit(G_OBJECT(gst), signals[MEDIA_STATE], 0,
gst->priv->stream, PAROLE_STATE_PLAYING);
break;
}
case GST_STATE_PAUSED:
{
if ( gst->priv->target == GST_STATE_PLAYING ) {
if ( gst->priv->update_color_balance ) {
parole_gst_set_video_color_balance(gst);
}
}
gst->priv->media_state = PAROLE_STATE_PAUSED;
g_signal_emit(G_OBJECT(gst), signals[MEDIA_STATE], 0,
gst->priv->stream, PAROLE_STATE_PAUSED);
break;
}
case GST_STATE_READY:
{
gst->priv->buffering = FALSE;
gst->priv->seeking = FALSE;
gst->priv->media_state = PAROLE_STATE_STOPPED;
g_signal_emit(G_OBJECT(gst), signals[MEDIA_STATE], 0,
gst->priv->stream, PAROLE_STATE_STOPPED);
if (gst->priv->target == GST_STATE_PLAYING && pending < GST_STATE_PAUSED) {
parole_gst_play_file_internal(gst);
} else if (gst->priv->target == GST_STATE_PAUSED) {
parole_gst_change_state(gst, GST_STATE_PAUSED);
} else if (gst->priv->target == GST_STATE_READY) {
gtk_widget_get_allocation(GTK_WIDGET(gst), allocation);
parole_gst_size_allocate(GTK_WIDGET(gst), allocation);
g_free(allocation);
}
break;
}
case GST_STATE_NULL:
{
gst->priv->buffering = FALSE;
gst->priv->seeking = FALSE;
gst->priv->media_state = PAROLE_STATE_STOPPED;
g_signal_emit(G_OBJECT(gst), signals[MEDIA_STATE], 0,
gst->priv->stream, PAROLE_STATE_STOPPED);
break;
}
default:
break;
}
}
static void
parole_gst_element_message_sync(GstBus *bus, GstMessage *message, ParoleGst *gst) {
if ( gst_message_has_name (message, "prepare-window-handle") ) {
parole_gst_set_video_overlay(gst);
}
}
static GdkPixbuf *
parole_gst_buffer_to_pixbuf(GstBuffer *buffer) {
GdkPixbufLoader *loader;
GdkPixbuf *pixbuf = NULL;
GError *err = NULL;
GstMapInfo map;
if (!gst_buffer_map (buffer, &map, GST_MAP_READ))
return NULL;
loader = gdk_pixbuf_loader_new();
if (gdk_pixbuf_loader_write (loader, map.data, map.size, &err) && gdk_pixbuf_loader_close(loader, &err)) {
pixbuf = gdk_pixbuf_loader_get_pixbuf(loader);
if (pixbuf) {
g_object_ref(pixbuf);
}
} else {
GST_WARNING("could not convert tag image to pixbuf: %s", err->message);
g_error_free(err);
}
gst_buffer_unmap(buffer, &map);
g_object_unref(loader);
return pixbuf;
}
GdkPixbuf *
parole_gst_tag_list_get_cover_external(ParoleGst *gst) {
GdkPixbuf *pixbuf;
GError *err = NULL;
gchar *uri;
gchar *filename;
gchar *directory;
GDir *file_dir;
GError *error = NULL;
const gchar *listing = NULL;
gchar *lower = NULL;
gchar *cover = NULL;
gchar *cover_filename = NULL;
g_object_get(G_OBJECT(gst->priv->stream),
"uri", &uri,
NULL);
filename = g_filename_from_uri(uri, NULL, NULL);
if (!filename) {
return NULL;
}
directory = g_path_get_dirname(filename);
file_dir = g_dir_open(directory, 0, &error);
if (error) {
g_error_free(error);
return NULL;
}
while ( (listing = g_dir_read_name(file_dir)) ) {
lower = g_utf8_strdown(listing, -1);
if ( g_strcmp0(lower, "cover.jpg") == 0 )
cover = g_strdup(listing);
else if ( g_strcmp0(lower, "folder.jpg") == 0 )
cover = g_strdup(listing);
else if ( g_strcmp0(lower, "album.jpg") == 0 )
cover = g_strdup(listing);
else if ( g_strcmp0(lower, "thumb.jpg") == 0 )
cover = g_strdup(listing);
else if ( g_strcmp0(lower, "albumartsmall.jpg") == 0 )
cover = g_strdup(listing);
g_free(lower);
if (cover) {
cover_filename = g_build_filename(directory, cover, NULL);
g_free(cover);
break;
}
}
g_free(uri);
g_free(filename);
g_free(directory);
g_dir_close(file_dir);
if (!cover_filename)
return NULL;
pixbuf = gdk_pixbuf_new_from_file(cover_filename, &err);
g_free(cover_filename);
if (err) {
g_object_unref(pixbuf);
g_error_free(err);
return NULL;
}
return pixbuf;
}
GdkPixbuf *
parole_gst_tag_list_get_cover_embedded(ParoleGst *gst, GstTagList *tag_list) {
GdkPixbuf *pixbuf;
const GValue *cover_value = NULL;
guint i;
for (i = 0; ; i++) {
const GValue *value;
GstSample *sample;
GstStructure *caps_struct;
int type;
value = gst_tag_list_get_value_index(tag_list,
GST_TAG_IMAGE,
i);
if (value == NULL)
break;
sample = gst_value_get_sample(value);
caps_struct = gst_caps_get_structure(gst_sample_get_caps(sample), 0);
gst_structure_get_enum(caps_struct,
"image-type",
GST_TYPE_TAG_IMAGE_TYPE,
&type);
if (type == GST_TAG_IMAGE_TYPE_UNDEFINED) {
if (cover_value == NULL)
cover_value = value;
} else if (type == GST_TAG_IMAGE_TYPE_FRONT_COVER) {
cover_value = value;
break;
}
}
if (!cover_value) {
cover_value = gst_tag_list_get_value_index(tag_list,
GST_TAG_PREVIEW_IMAGE,
0);
}