[vlc-devel] [PATCH 39/48] vdpau: basic deinterlacing filter
Rémi Denis-Courmont
remi at remlab.net
Tue Jul 2 19:52:05 CEST 2013
---
modules/hw/vdpau/Makefile.am | 5 ++
modules/hw/vdpau/chroma.c | 4 +-
modules/hw/vdpau/deinterlace.c | 122 +++++++++++++++++++++++++++++++++++++++++
modules/hw/vdpau/picture.c | 2 +
modules/hw/vdpau/vlc_vdpau.h | 1 +
5 files changed, 133 insertions(+), 1 deletion(-)
create mode 100644 modules/hw/vdpau/deinterlace.c
diff --git a/modules/hw/vdpau/Makefile.am b/modules/hw/vdpau/Makefile.am
index f81370c..ecb2c21 100644
--- a/modules/hw/vdpau/Makefile.am
+++ b/modules/hw/vdpau/Makefile.am
@@ -26,6 +26,11 @@ if HAVE_AVCODEC_VDPAU
libvlc_LTLIBRARIES += libvdpau_avcodec_plugin.la
endif
+libvdpau_deinterlace_plugin_la_SOURCES = deinterlace.c picture.c
+libvdpau_deinterlace_plugin_la_CFLAGS = $(AM_CFLAGS) # dummy
+libvdpau_deinterlace_plugin_la_LIBADD = $(AM_LIBADD)
+libvlc_LTLIBRARIES += libvdpau_deinterlace_plugin.la
+
libvdpau_chroma_plugin_la_SOURCES = chroma.c picture.c
libvdpau_chroma_plugin_la_CFLAGS = $(AM_CFLAGS) # dummy
libvdpau_chroma_plugin_la_LIBADD = $(AM_LIBADD)
diff --git a/modules/hw/vdpau/chroma.c b/modules/hw/vdpau/chroma.c
index 2b209a7..c4946de 100644
--- a/modules/hw/vdpau/chroma.c
+++ b/modules/hw/vdpau/chroma.c
@@ -288,6 +288,8 @@ static picture_t *MixerRender(filter_t *filter, picture_t *src)
picture_CopyProperties(dst, src);
/* Render video into output */
+ VdpVideoMixerPictureStructure structure =
+ ((vlc_vdp_video_field_t *)(src->context))->structure;
VdpVideoSurface past[MAX_PAST];
VdpVideoSurface surface = picture_GetVideoSurface(src);
VdpVideoSurface future[MAX_FUTURE];
@@ -322,7 +324,7 @@ static picture_t *MixerRender(filter_t *filter, picture_t *src)
}
err = vdp_video_mixer_render(sys->vdp, sys->mixer, VDP_INVALID_HANDLE,
- NULL, VDP_VIDEO_MIXER_PICTURE_STRUCTURE_FRAME,
+ NULL, structure,
MAX_PAST, past, surface, MAX_FUTURE, future,
&src_rect, output, &dst_rect, NULL, 0, NULL);
if (err != VDP_STATUS_OK)
diff --git a/modules/hw/vdpau/deinterlace.c b/modules/hw/vdpau/deinterlace.c
new file mode 100644
index 0000000..345374c
--- /dev/null
+++ b/modules/hw/vdpau/deinterlace.c
@@ -0,0 +1,122 @@
+/*****************************************************************************
+ * deinterlace.c: VDPAU deinterlacing filter
+ *****************************************************************************
+ * Copyright (C) 2013 Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 <stdlib.h>
+#include <assert.h>
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_filter.h>
+#include "vlc_vdpau.h"
+
+struct filter_sys_t
+{
+ mtime_t last_pts;
+};
+
+static picture_t *Deinterlace(filter_t *filter, picture_t *src)
+{
+ filter_sys_t *sys = filter->p_sys;
+ mtime_t last_pts = sys->last_pts;
+
+ sys->last_pts = src->date;
+
+ vlc_vdp_video_field_t *f1 = src->context;
+ if (f1->structure != VDP_VIDEO_MIXER_PICTURE_STRUCTURE_FRAME)
+ return src; /* cannot deinterlace twice */
+
+ picture_t *dst = vlc_vdp_video_copy(src); // shallow copy
+ if (dst == NULL)
+ return src; /* cannot deinterlace without copying fields */
+
+ if (last_pts != VLC_TS_INVALID)
+ dst->date = (3 * src->date - last_pts) / 2;
+ else
+ if (filter->fmt_in.video.i_frame_rate != 0)
+ dst->date = src->date + ((filter->fmt_in.video.i_frame_rate_base
+ * CLOCK_FREQ) / filter->fmt_in.video.i_frame_rate);
+ dst->b_top_field_first = !src->b_top_field_first;
+ dst->i_nb_fields = 1;
+ src->i_nb_fields = 1;
+
+ assert(src->p_next == NULL);
+ src->p_next = dst;
+
+ vlc_vdp_video_field_t *f2 = dst->context;
+ if (src->b_progressive || src->b_top_field_first)
+ {
+ f1->structure = VDP_VIDEO_MIXER_PICTURE_STRUCTURE_TOP_FIELD;
+ f2->structure = VDP_VIDEO_MIXER_PICTURE_STRUCTURE_BOTTOM_FIELD;
+ }
+ else
+ {
+ f1->structure = VDP_VIDEO_MIXER_PICTURE_STRUCTURE_BOTTOM_FIELD;
+ f2->structure = VDP_VIDEO_MIXER_PICTURE_STRUCTURE_TOP_FIELD;
+ }
+
+ src->b_progressive = true;
+ return src;
+}
+
+static int Open(vlc_object_t *obj)
+{
+ filter_t *filter = (filter_t *)obj;
+
+ if (filter->fmt_in.video.i_chroma != VLC_CODEC_VDPAU_VIDEO_422
+ && filter->fmt_in.video.i_chroma != VLC_CODEC_VDPAU_VIDEO_420)
+ return VLC_EGENERIC;
+ if (!video_format_IsSimilar(&filter->fmt_in.video, &filter->fmt_out.video))
+ return VLC_EGENERIC;
+
+ filter_sys_t *sys = malloc(sizeof (*sys));
+ if (unlikely(sys == NULL))
+ return VLC_ENOMEM;
+
+ /* NOTE: Only weave and bob are mandatory for the hardware to implement.
+ * The other modes and IVTC should be checked. */
+
+ sys->last_pts = VLC_TS_INVALID;
+
+ filter->pf_video_filter = Deinterlace;
+ filter->p_sys = sys;
+ filter->fmt_out.video.i_frame_rate *= 2;
+ return VLC_SUCCESS;
+}
+
+static void Close(vlc_object_t *obj)
+{
+ filter_t *filter = (filter_t *)obj;
+ filter_sys_t *sys = filter->p_sys;
+
+ free(sys);
+}
+
+vlc_module_begin()
+ set_description(N_("VDPAU deinterlacing filter"))
+ set_capability("video filter2", 0)
+ set_category(CAT_VIDEO)
+ set_subcategory(SUBCAT_VIDEO_VFILTER)
+ set_callbacks(Open, Close)
+ add_shortcut ("deinterlace")
+vlc_module_end()
diff --git a/modules/hw/vdpau/picture.c b/modules/hw/vdpau/picture.c
index 201470d..59db97a 100644
--- a/modules/hw/vdpau/picture.c
+++ b/modules/hw/vdpau/picture.c
@@ -71,6 +71,7 @@ VdpStatus vlc_vdp_video_attach(vdp_t *vdp, VdpVideoSurface surface,
field->destroy = SurfaceDestroy;
field->frame = frame;
+ field->structure = VDP_VIDEO_MIXER_PICTURE_STRUCTURE_FRAME;
atomic_init(&frame->refs, 1);
frame->surface = surface;
@@ -99,6 +100,7 @@ picture_t *vlc_vdp_video_copy(picture_t *src)
fnew->destroy = SurfaceDestroy;
fnew->frame = frame;
+ fnew->structure = fold->structure;
atomic_fetch_add(&frame->refs, 1);
return dst;
diff --git a/modules/hw/vdpau/vlc_vdpau.h b/modules/hw/vdpau/vlc_vdpau.h
index edc4739..b2a42cd 100644
--- a/modules/hw/vdpau/vlc_vdpau.h
+++ b/modules/hw/vdpau/vlc_vdpau.h
@@ -258,6 +258,7 @@ typedef struct vlc_vdp_video_field
{
void (*destroy)(void *); /* must be first @ref picture_Release() */
vlc_vdp_video_frame_t *frame;
+ VdpVideoMixerPictureStructure structure;
} vlc_vdp_video_field_t;
/**
--
1.8.3.2
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