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dvdspu: cache overlay composition

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This avoids rendering the overlay buffer for each video frame.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5827>
This commit is contained in:
Arnaud Vrac 2013-09-02 17:48:50 +02:00 committed by GStreamer Marge Bot
parent 5919bfec5e
commit 559c4b8429
2 changed files with 29 additions and 8 deletions
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34
subprojects/gst-plugins-bad/gst/dvdspu/gstdvdspu.c
View file

@ -189,6 +189,15 @@ gst_dvd_spu_init (GstDVDSpu * dvdspu)
gst_dvd_spu_clear (dvdspu);
}
static void
gst_dvd_spu_reset_composition (GstDVDSpu * dvdspu)
{
if (dvdspu->composition) {
gst_video_overlay_composition_unref (dvdspu->composition);
dvdspu->composition = NULL;
}
}
static void
gst_dvd_spu_clear (GstDVDSpu * dvdspu)
{
@ -279,6 +288,8 @@ gst_dvd_spu_flush_spu_info (GstDVDSpu * dvdspu, gboolean keep_events)
default:
break;
}
gst_dvd_spu_reset_composition (dvdspu);
}
static gboolean
@ -1029,26 +1040,27 @@ gstspu_render (GstDVDSpu * dvdspu, GstBuffer * buf)
GstVideoOverlayComposition *composition;
GstVideoFrame frame;
composition = gstspu_render_composition (dvdspu);
if (!composition)
if (!dvdspu->composition) {
dvdspu->composition = gstspu_render_composition (dvdspu);
if (!dvdspu->composition)
return;
}
composition = dvdspu->composition;
if (dvdspu->attach_compo_to_buffer) {
gst_buffer_add_video_overlay_composition_meta (buf, composition);
goto done;
return;
}
if (!gst_video_frame_map (&frame, &dvdspu->spu_state.info, buf,
GST_MAP_READWRITE)) {
GST_WARNING_OBJECT (dvdspu, "failed to map video frame for blending");
goto done;
return;
}
gst_video_overlay_composition_blend (composition, &frame);
gst_video_frame_unmap (&frame);
done:
gst_video_overlay_composition_unref (composition);
}
/* With SPU LOCK */
@ -1117,6 +1129,9 @@ gst_dvd_spu_handle_dvd_event (GstDVDSpu * dvdspu, GstEvent * event)
break;
}
if (hl_change)
gst_dvd_spu_reset_composition (dvdspu);
if (hl_change && (dvdspu->spu_state.flags & SPU_STATE_STILL_FRAME)) {
gst_dvd_spu_redraw_still (dvdspu, FALSE);
}
@ -1170,6 +1185,8 @@ gst_dvd_spu_advance_spu (GstDVDSpu * dvdspu, GstClockTime new_ts)
GST_TIME_ARGS (dvdspu->video_seg.position),
packet->buf ? "buffer" : "event");
gst_dvd_spu_reset_composition (dvdspu);
if (packet->buf) {
switch (dvdspu->spu_input_type) {
case SPU_INPUT_TYPE_VOBSUB:
@ -1288,6 +1305,9 @@ gst_dvd_spu_negotiate (GstDVDSpu * dvdspu, GstCaps * caps)
GST_DEBUG_OBJECT (dvdspu, "performing negotiation");
/* Clear the cached composition */
gst_dvd_spu_reset_composition (dvdspu);
/* Clear any pending reconfigure to avoid negotiating twice */
gst_pad_check_reconfigure (dvdspu->srcpad);

1
subprojects/gst-plugins-bad/gst/dvdspu/gstdvdspu.h
View file

@ -116,6 +116,7 @@ struct _GstDVDSpu {
/* Overlay composition */
gboolean attach_compo_to_buffer;
GstVideoOverlayComposition *composition;
};
struct _GstDVDSpuClass {