Re: [FFmpeg-devel] [PATCH] avfilter: add estdif video filter
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[FFmpeg-devel] [PATCH] avfilter: add estdif video filter
Signed-off-by: Paul B Mahol
---
doc/filters.texi | 64 ++
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_estdif.c | 469 +++
4 files changed, 535 insertions(+)
create mode 100644 libavfilter/vf_estdif.c
diff --git a/doc/filters.texi b/doc/filters.texi
index 813e35c2f9..9fbc4de7d2 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -11065,6 +11065,70 @@ Flags to local 3x3 coordinates maps like this:
This filter supports the all above options as @ref{commands}.
+@section estdif
+
+Deinterlace the input video ("estdif" stands for "Edge Slope
+Tracing Deinterlacing Filter").
+
+Spatial only filter that uses edge slope tracing algorithm
+to interpolate missing lines.
+It accepts the following parameters:
+
+@table @option
+@item mode
+The interlacing mode to adopt. It accepts one of the following values:
+
+@table @option
+@item frame
+Output one frame for each frame.
+@item field
+Output one frame for each field.
+@end table
+
+The default value is @code{field}.
+
+@item parity
+The picture field parity assumed for the input interlaced video. It accepts one
+of the following values:
+
+@table @option
+@item ff
+Assume the top field is first.
+@item bff
+Assume the bottom field is first.
+@item auto
+Enable automatic detection of field parity.
+@end table
+
+The default value is @code{auto}.
+If the interlacing is unknown or the decoder does not export this information,
+top field first will be assumed.
+
+@item deint
+Specify which frames to deinterlace. Accepts one of the following
+values:
+
+@table @option
+@item all
+Deinterlace all frames.
+@item interlaced
+Only deinterlace frames marked as interlaced.
+@end table
+
+The default value is @code{all}.
+
+@item rslope
+Specify the search radius for edge slope tracing. Default value is 1.
+Allowed range is from 1 to 15.
+
+@item redge
+Specify the search radius for best edge matching. Default value is 2.
+Allowed range is from 0 to 3.
+@end table
+
+@subsection Commands
+This filter supports same @ref{commands} as options.
+
@section extractplanes
Extract color channel components from input video stream into
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index ad1046d526..44afa79963 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -252,6 +252,7 @@ OBJS-$(CONFIG_EQ_FILTER) += vf_eq.o
OBJS-$(CONFIG_EROSION_FILTER)+= vf_neighbor.o
OBJS-$(CONFIG_EROSION_OPENCL_FILTER) += vf_neighbor_opencl.o opencl.o \
opencl/neighbor.o
+OBJS-$(CONFIG_ESTDIF_FILTER) += vf_estdif.o
OBJS-$(CONFIG_EXTRACTPLANES_FILTER) += vf_extractplanes.o
OBJS-$(CONFIG_FADE_FILTER) += vf_fade.o
OBJS-$(CONFIG_FFTDNOIZ_FILTER) += vf_fftdnoiz.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index ce317dfa1c..471844a603 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -237,6 +237,7 @@ extern AVFilter ff_vf_entropy;
extern AVFilter ff_vf_eq;
extern AVFilter ff_vf_erosion;
extern AVFilter ff_vf_erosion_opencl;
+extern AVFilter ff_vf_estdif;
extern AVFilter ff_vf_extractplanes;
extern AVFilter ff_vf_fade;
extern AVFilter ff_vf_fftdnoiz;
diff --git a/libavfilter/vf_estdif.c b/libavfilter/vf_estdif.c
new file mode 100644
index 00..5d83e66906
--- /dev/null
+++ b/libavfilter/vf_estdif.c
@@ -0,0 +1,469 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "video.h"
+
+typedef struct ESTDIFContext {
+const AVClass *class;
+
+int mode; ///< 0 is frame, 1 is field
+int parity; ///< frame field parity
+int deint;///< which frames to deinterlace
+int rslope; ///< best edge slope search radius
+int redge;///< best edge match search radius
+int linesize[4]; ///< bytes of pixel data per line for each plane
+int planewidth[4];///< width of each plane
+int planeheight[4];
[FFmpeg-devel] [PATCH] avfilter: add estdif video filter
Signed-off-by: Paul B Mahol
---
TODO: add working >8 depth support
---
doc/filters.texi | 56 ++
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_estdif.c | 372 +++
4 files changed, 430 insertions(+)
create mode 100644 libavfilter/vf_estdif.c
diff --git a/doc/filters.texi b/doc/filters.texi
index 01ae540c5c..d5cfb1b4ff 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -11065,6 +11065,62 @@ Flags to local 3x3 coordinates maps like this:
This filter supports the all above options as @ref{commands}.
+@section estdif
+
+Deinterlace the input video ("estdif" stands for "Edge Slope
+Tracing Deinterlacing Filter").
+
+Spatial only filter that uses simple edge slope tracing algorithm
+to interpolate missing lines.
+It accepts the following parameters:
+
+@table @option
+@item mode
+The interlacing mode to adopt. It accepts one of the following values:
+
+@table @option
+@item frame
+Output one frame for each frame.
+@item field
+Output one frame for each field.
+@end table
+
+The default value is @code{field}.
+
+@item parity
+The picture field parity assumed for the input interlaced video. It accepts one
+of the following values:
+
+@table @option
+@item ff
+Assume the top field is first.
+@item bff
+Assume the bottom field is first.
+@item auto
+Enable automatic detection of field parity.
+@end table
+
+The default value is @code{auto}.
+If the interlacing is unknown or the decoder does not export this information,
+top field first will be assumed.
+
+@item deint
+Specify which frames to deinterlace. Accepts one of the following
+values:
+
+@table @option
+@item all
+Deinterlace all frames.
+@item interlaced
+Only deinterlace frames marked as interlaced.
+@end table
+
+The default value is @code{all}.
+@end table
+
+@subsection Commands
+This filter supports same @ref{commands} as options.
+
@section extractplanes
Extract color channel components from input video stream into
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 526da8d69e..7939381616 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -252,6 +252,7 @@ OBJS-$(CONFIG_EQ_FILTER) += vf_eq.o
OBJS-$(CONFIG_EROSION_FILTER)+= vf_neighbor.o
OBJS-$(CONFIG_EROSION_OPENCL_FILTER) += vf_neighbor_opencl.o opencl.o \
opencl/neighbor.o
+OBJS-$(CONFIG_ESTDIF_FILTER) += vf_estdif.o
OBJS-$(CONFIG_EXTRACTPLANES_FILTER) += vf_extractplanes.o
OBJS-$(CONFIG_FADE_FILTER) += vf_fade.o
OBJS-$(CONFIG_FFTDNOIZ_FILTER) += vf_fftdnoiz.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index ce317dfa1c..471844a603 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -237,6 +237,7 @@ extern AVFilter ff_vf_entropy;
extern AVFilter ff_vf_eq;
extern AVFilter ff_vf_erosion;
extern AVFilter ff_vf_erosion_opencl;
+extern AVFilter ff_vf_estdif;
extern AVFilter ff_vf_extractplanes;
extern AVFilter ff_vf_fade;
extern AVFilter ff_vf_fftdnoiz;
diff --git a/libavfilter/vf_estdif.c b/libavfilter/vf_estdif.c
new file mode 100644
index 00..ec2cd42a96
--- /dev/null
+++ b/libavfilter/vf_estdif.c
@@ -0,0 +1,372 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "video.h"
+
+typedef struct ESTDIFContext {
+const AVClass *class;
+
+int mode; ///< 0 is frame, 1 is field
+int parity; ///< frame field parity
+int deint;///< which frames to deinterlace
+int linesize[4]; ///< bytes of pixel data per line for each plane
+int planewidth[4];///< width of each plane
+int planeheight[4]; ///< height of each plane
+int field;///< which field are we on, 0 or 1
+int eof;
+int nb_planes;
+int nb_threads;
+int max;
+int64_t pts;
+AVFrame *prev;
+
+int *work_line[4];
+} ESTDIFContext;
+
+#define OFFSET(x) offsetof(ESTDIFContext, x)
+#define FLAGS
