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avfvideosrc: check if downstream supports the video meta API

Browse source 
Check if downstream supports the video meta API, so we can use it later
with the core media buffers.

https://bugzilla.gnome.org/show_bug.cgi?id=727953
This commit is contained in:
Matthieu Bouron 2014-04-09 11:47:12 +01:00
parent 510040e033
commit c6572df9ff
1 changed files with 26 additions and 0 deletions
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26
sys/applemedia/avfvideosrc.m
View file

@ -103,6 +103,8 @@ G_DEFINE_TYPE (GstAVFVideoSrc, gst_avf_video_src, GST_TYPE_PUSH_SRC);
BOOL captureScreen;
BOOL captureScreenCursor;
BOOL captureScreenMouseClicks;
BOOL useVideoMeta;
}
- (id)init;
@ -163,6 +165,7 @@ didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
captureScreen = NO;
captureScreenCursor = NO;
captureScreenMouseClicks = NO;
useVideoMeta = NO;
#if !HAVE_IOS
displayId = kCGDirectMainDisplay;
#endif
@ -705,6 +708,14 @@ didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
return result;
}
- (BOOL)decideAllocation:(GstQuery *)query
{
useVideoMeta = gst_query_find_allocation_meta (query,
GST_VIDEO_META_API_TYPE, NULL);
return YES;
}
- (BOOL)unlock
{
[bufQueueLock lock];
@ -911,6 +922,8 @@ static gboolean gst_avf_video_src_start (GstBaseSrc * basesrc);
static gboolean gst_avf_video_src_stop (GstBaseSrc * basesrc);
static gboolean gst_avf_video_src_query (GstBaseSrc * basesrc,
GstQuery * query);
static gboolean gst_avf_video_src_decide_allocation (GstBaseSrc * basesrc,
GstQuery * query);
static gboolean gst_avf_video_src_unlock (GstBaseSrc * basesrc);
static gboolean gst_avf_video_src_unlock_stop (GstBaseSrc * basesrc);
static GstFlowReturn gst_avf_video_src_create (GstPushSrc * pushsrc,
@ -938,6 +951,7 @@ gst_avf_video_src_class_init (GstAVFVideoSrcClass * klass)
gstbasesrc_class->query = gst_avf_video_src_query;
gstbasesrc_class->unlock = gst_avf_video_src_unlock;
gstbasesrc_class->unlock_stop = gst_avf_video_src_unlock_stop;
gstbasesrc_class->decide_allocation = gst_avf_video_src_decide_allocation;
gstpushsrc_class->create = gst_avf_video_src_create;
@ -1144,6 +1158,18 @@ gst_avf_video_src_query (GstBaseSrc * basesrc, GstQuery * query)
return ret;
}
static gboolean
gst_avf_video_src_decide_allocation (GstBaseSrc * basesrc, GstQuery * query)
{
gboolean ret;
OBJC_CALLOUT_BEGIN ();
ret = [GST_AVF_VIDEO_SRC_IMPL (basesrc) decideAllocation:query];
OBJC_CALLOUT_END ();
return ret;
}
static gboolean
gst_avf_video_src_unlock (GstBaseSrc * basesrc)
{