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video-uri-source: Handle interlaced videos

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=710168
This commit is contained in:
Thibault Saunier 2013-11-18 13:41:07 -03:00
parent e5d28fa86e
commit a73644a7b9
1 changed files with 41 additions and 0 deletions
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41
ges/ges-video-uri-source.c
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@ -23,6 +23,8 @@
* @short_description: outputs a single video stream from a given file
*/
#include <gst/pbutils/missing-plugins.h>
#include "ges-utils.h"
#include "ges-internal.h"
#include "ges-track-element.h"
@ -41,12 +43,23 @@ enum
PROP_URI
};
static void
post_missing_element_message (GstElement * element, const gchar * name)
{
GstMessage *msg;
msg = gst_missing_element_message_new (element, name);
gst_element_post_message (element, msg);
}
/* GESSource VMethod */
static GstElement *
ges_video_uri_source_create_source (GESTrackElement * trksrc)
{
GESVideoUriSource *self;
GESTrack *track;
GstDiscovererVideoInfo *info;
GESUriSourceAsset *asset;
GstElement *decodebin;
self = (GESVideoUriSource *) trksrc;
@ -58,6 +71,34 @@ ges_video_uri_source_create_source (GESTrackElement * trksrc)
g_object_set (decodebin, "caps", ges_track_get_caps (track),
"expose-all-streams", FALSE, "uri", self->uri, NULL);
if ((asset =
GES_URI_SOURCE_ASSET (ges_extractable_get_asset (GES_EXTRACTABLE
(trksrc)))) != NULL) {
info =
GST_DISCOVERER_VIDEO_INFO (ges_uri_source_asset_get_stream_info
(asset));
g_assert (info);
if (gst_discoverer_video_info_is_interlaced (info)) {
GstElement *deinterlace;
deinterlace = gst_element_factory_make ("deinterlace", "deinterlace");
if (deinterlace == NULL) {
deinterlace = gst_element_factory_make ("avdeinterlace", "deinterlace");
}
if (deinterlace == NULL) {
post_missing_element_message (decodebin, "deinterlace");
GST_ELEMENT_WARNING (decodebin, CORE, MISSING_PLUGIN,
("Missing element '%s' - check your GStreamer installation.",
"deinterlace"), ("deinterlacing won't work"));
}
return ges_source_create_topbin ("deinterlace-bin", decodebin,
gst_element_factory_make ("videoconvert", NULL), deinterlace, NULL);
}
}
return decodebin;
}