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gstmedia: Properly detect stream metadata when preparing

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We can look at the GstPlayerMediaInfo to get all the info we care about.
This commit is contained in:
Benjamin Otte 2021-03-30 22:23:32 +02:00
parent 6c95fc7e87
commit e7dc82fa32
1 changed files with 33 additions and 15 deletions
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48
modules/media/gtkgstmediafile.c
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@ -127,17 +127,35 @@ g_io_module_query (void)
}
static void
gtk_gst_media_file_ensure_prepared (GtkGstMediaFile *self,
gint64 duration)
gtk_gst_media_file_ensure_prepared (GtkGstMediaFile *self)
{
GstPlayerMediaInfo *media_info;
if (gtk_media_stream_is_prepared (GTK_MEDIA_STREAM (self)))
return;
gtk_media_stream_prepared (GTK_MEDIA_STREAM (self),
TRUE,
TRUE,
TRUE,
duration);
media_info = gst_player_get_media_info (self->player);
if (media_info)
{
gtk_media_stream_prepared (GTK_MEDIA_STREAM (self),
gst_player_media_info_get_audio_streams (media_info) != NULL,
gst_player_media_info_get_video_streams (media_info) != NULL,
gst_player_media_info_is_seekable (media_info),
FROM_GST_TIME (gst_player_media_info_get_duration (media_info)));
}
else
{
/* Assuming everything exists is better for the user than pretending it doesn't exist.
* Better to be able to control non-existing audio than not be able to control existing audio.
*
* Only for seeking we can't do a thing, because with 0 duration we can't seek anywhere.
*/
gtk_media_stream_prepared (GTK_MEDIA_STREAM (self),
TRUE,
TRUE,
FALSE,
0);
}
}
static void
@ -145,17 +163,17 @@ gtk_gst_media_file_position_updated_cb (GstPlayer *player,
GstClockTime time,
GtkGstMediaFile *self)
{
gtk_gst_media_file_ensure_prepared (self, 0);
gtk_gst_media_file_ensure_prepared (self);
gtk_media_stream_update (GTK_MEDIA_STREAM (self), FROM_GST_TIME (time));
}
static void
gtk_gst_media_file_duration_changed_cb (GstPlayer *player,
GstClockTime duration,
GtkGstMediaFile *self)
gtk_gst_media_file_media_info_updated_cb (GstPlayer *player,
GstClockTime duration,
GtkGstMediaFile *self)
{
gtk_gst_media_file_ensure_prepared (self, FROM_GST_TIME (duration));
gtk_gst_media_file_ensure_prepared (self);
}
static void
@ -185,7 +203,7 @@ static void
gtk_gst_media_file_end_of_stream_cb (GstPlayer *player,
GtkGstMediaFile *self)
{
gtk_gst_media_file_ensure_prepared (self, 0);
gtk_gst_media_file_ensure_prepared (self);
if (gtk_media_stream_get_ended (GTK_MEDIA_STREAM (self)))
return;
@ -205,7 +223,7 @@ gtk_gst_media_file_destroy_player (GtkGstMediaFile *self)
if (self->player == NULL)
return;
g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_duration_changed_cb, self);
g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_media_info_updated_cb, self);
g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_position_updated_cb, self);
g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_end_of_stream_cb, self);
g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_seek_done_cb, self);
@ -224,7 +242,7 @@ gtk_gst_media_file_create_player (GtkGstMediaFile *file)
self->player = gst_player_new (GST_PLAYER_VIDEO_RENDERER (g_object_ref (self->paintable)),
gst_player_g_main_context_signal_dispatcher_new (NULL));
g_signal_connect (self->player, "duration-changed", G_CALLBACK (gtk_gst_media_file_duration_changed_cb), self);
g_signal_connect (self->player, "media-info-updated", G_CALLBACK (gtk_gst_media_file_media_info_updated_cb), self);
g_signal_connect (self->player, "position-updated", G_CALLBACK (gtk_gst_media_file_position_updated_cb), self);
g_signal_connect (self->player, "end-of-stream", G_CALLBACK (gtk_gst_media_file_end_of_stream_cb), self);
g_signal_connect (self->player, "seek-done", G_CALLBACK (gtk_gst_media_file_seek_done_cb), self);