invtelecine: Remove in favor of fieldanalysis

3 files changed, 0 insertions, 998 deletions

diff --git a/configure.ac b/configure.ac
index 772f45310..7ba1571e6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,7 +322,6 @@ AG_GST_CHECK_PLUGIN(hdvparse)
 AG_GST_CHECK_PLUGIN(hls)
 AG_GST_CHECK_PLUGIN(id3tag)
 AG_GST_CHECK_PLUGIN(interlace)
-AG_GST_CHECK_PLUGIN(invtelecine)
 AG_GST_CHECK_PLUGIN(ivfparse)
 AG_GST_CHECK_PLUGIN(jp2kdecimator)
 AG_GST_CHECK_PLUGIN(jpegformat)
@@ -1873,7 +1872,6 @@ gst/hdvparse/Makefile
 gst/hls/Makefile
 gst/id3tag/Makefile
 gst/interlace/Makefile
-gst/invtelecine/Makefile
 gst/ivfparse/Makefile
 gst/jp2kdecimator/Makefile
 gst/jpegformat/Makefile
diff --git a/gst/invtelecine/Makefile.am b/gst/invtelecine/Makefile.am
deleted file mode 100644
index bce38dd5b..000000000
--- a/gst/invtelecine/Makefile.am
+++ /dev/null
@@ -1,30 +0,0 @@
-plugin_LTLIBRARIES = libgstinvtelecine.la
-
-libgstinvtelecine_la_SOURCES = \
-	gstinvtelecine.c
-
-libgstinvtelecine_la_CFLAGS = \
-	$(GST_CFLAGS) \
-	$(GST_PLUGINS_BASE_CFLAGS)
-
-libgstinvtelecine_la_LIBADD = \
-	$(GST_LIBS) \
-	$(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ \
-	$(LIBM)
-
-libgstinvtelecine_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
-libgstinvtelecine_la_LIBTOOLFLAGS = --tag=disable-static
-
-Android.mk: Makefile.am $(BUILT_SOURCES)
-	androgenizer \
-	-:PROJECT libgstinvtelecine -:SHARED libgstinvtelecine \
-	 -:TAGS eng debug \
-         -:REL_TOP $(top_srcdir) -:ABS_TOP $(abs_top_srcdir) \
-	 -:SOURCES $(libgstinvtelecine_la_SOURCES) \
-	 -:CFLAGS $(DEFS) $(DEFAULT_INCLUDES) $(libgstinvtelecine_la_CFLAGS) \
-	 -:LDFLAGS $(libgstinvtelecine_la_LDFLAGS) \
-	           $(libgstinvtelecine_la_LIBADD) \
-	           -ldl \
-	 -:PASSTHROUGH LOCAL_ARM_MODE:=arm \
-		       LOCAL_MODULE_PATH:='$$(TARGET_OUT)/lib/gstreamer-0.10' \
-	> $@
\ No newline at end of file
diff --git a/gst/invtelecine/gstinvtelecine.c b/gst/invtelecine/gstinvtelecine.c
deleted file mode 100644
index 8e0a5929d..000000000
--- a/gst/invtelecine/gstinvtelecine.c
+++ /dev/null
@@ -1,966 +0,0 @@
-/* GStreamer
- * Copyright (C) 2010 David A. Schleef <ds@schleef.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <gst/gst.h>
-#include <gst/video/video.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-GST_DEBUG_CATEGORY (gst_invtelecine_debug);
-#define GST_CAT_DEFAULT gst_invtelecine_debug
-
-#define GST_TYPE_INVTELECINE \
-  (gst_invtelecine_get_type())
-#define GST_INVTELECINE(obj) \
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INVTELECINE,GstInvtelecine))
-#define GST_INVTELECINE_DEC_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INVTELECINE,GstInvtelecineClass))
-#define GST_IS_GST_INVTELECINE(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INVTELECINE))
-#define GST_IS_GST_INVTELECINE_CLASS(obj) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INVTELECINE))
-
-typedef struct _GstInvtelecine GstInvtelecine;
-typedef struct _GstInvtelecineClass GstInvtelecineClass;
-typedef struct _Field Field;
-
-#define FIFO_SIZE 20
-
-struct _Field
-{
-  GstBuffer *buffer;
-  int field_index;
-  double prev;
-  double prev1;
-  double prev2;
-  double prev3;
-
-};
-
-struct _GstInvtelecine
-{
-  GstElement element;
-
-  GstPad *srcpad;
-  GstPad *sinkpad;
-
-  /* properties */
-  gboolean verify_field_flags;
-
-  /* state */
-  int next_field;
-  int num_fields;
-  int field;
-
-  gboolean locked;
-  int last_lock;
-  int phase;
-
-  Field fifo[FIFO_SIZE];
-
-  int width;
-  int height;
-  GstVideoFormat format;
-  gboolean interlaced;
-
-  double bad_flag_metric;
-};
-
-struct _GstInvtelecineClass
-{
-  GstElementClass element_class;
-
-};
-
-enum
-{
-  ARG_0,
-  PROP_VERIFY_FIELD_FLAGS
-};
-
-static GstStaticPadTemplate gst_invtelecine_src_template =
-GST_STATIC_PAD_TEMPLATE ("src",
-    GST_PAD_SRC,
-    GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{YUY2,UYVY,I420,YV12}")
-    )
-    );
-
-static GstStaticPadTemplate gst_invtelecine_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
-    GST_PAD_SINK,
-    GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{YUY2,UYVY,I420,YV12}")
-    )
-    );
-
-static void gst_invtelecine_base_init (gpointer g_class);
-static void gst_invtelecine_class_init (GstInvtelecineClass * klass);
-static void gst_invtelecine_init (GstInvtelecine * invtelecine);
-static GstFlowReturn gst_invtelecine_chain (GstPad * pad, GstBuffer * buffer);
-
-static void gst_invtelecine_set_property (GObject * object,
-    guint prop_id, const GValue * value, GParamSpec * pspec);
-static void gst_invtelecine_get_property (GObject * object,
-    guint prop_id, GValue * value, GParamSpec * pspec);
-
-static gboolean gst_invtelecine_setcaps (GstPad * pad, GstCaps * caps);
-static GstStateChangeReturn gst_invtelecine_change_state (GstElement * element,
-    GstStateChange transition);
-
-static GstElementClass *parent_class = NULL;
-
-static GstFlowReturn
-gst_invtelecine_output_fields (GstInvtelecine * invtelecine, int num_fields);
-
-
-static GType
-gst_invtelecine_get_type (void)
-{
-  static GType invtelecine_type = 0;
-
-  if (!invtelecine_type) {
-    static const GTypeInfo invtelecine_info = {
-      sizeof (GstInvtelecineClass),
-      gst_invtelecine_base_init,
-      NULL,
-      (GClassInitFunc) gst_invtelecine_class_init,
-      NULL,
-      NULL,
-      sizeof (GstInvtelecine),
-      0,
-      (GInstanceInitFunc) gst_invtelecine_init,
-    };
-
-    invtelecine_type = g_type_register_static (GST_TYPE_ELEMENT,
-        "GstInvtelecine", &invtelecine_info, 0);
-  }
-
-  return invtelecine_type;
-}
-
-static void
-gst_invtelecine_base_init (gpointer g_class)
-{
-
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
-  gst_element_class_set_details_simple (element_class,
-      "Inverse Telecine filter", "Filter/Video",
-      "Detects and reconstructs progressive content from telecine video",
-      "Entropy Wave <ds@entropywave.com>");
-
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&gst_invtelecine_sink_template));
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&gst_invtelecine_src_template));
-}
-
-static void
-gst_invtelecine_class_init (GstInvtelecineClass * klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
-  parent_class = g_type_class_peek_parent (klass);
-
-  object_class->set_property = gst_invtelecine_set_property;
-  object_class->get_property = gst_invtelecine_get_property;
-
-  element_class->change_state = gst_invtelecine_change_state;
-
-  g_object_class_install_property (object_class, PROP_VERIFY_FIELD_FLAGS,
-      g_param_spec_boolean ("verify-field-flags", "verify field flags",
-          "Verify that field dominance (top/bottom field first) buffer "
-          "flags are correct", FALSE,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-}
-
-static void
-gst_invtelecine_init (GstInvtelecine * invtelecine)
-{
-  GST_DEBUG ("gst_invtelecine_init");
-  invtelecine->sinkpad =
-      gst_pad_new_from_static_template (&gst_invtelecine_sink_template, "sink");
-  gst_element_add_pad (GST_ELEMENT (invtelecine), invtelecine->sinkpad);
-  gst_pad_set_chain_function (invtelecine->sinkpad, gst_invtelecine_chain);
-  gst_pad_set_setcaps_function (invtelecine->sinkpad, gst_invtelecine_setcaps);
-
-  invtelecine->srcpad =
-      gst_pad_new_from_static_template (&gst_invtelecine_src_template, "src");
-  gst_element_add_pad (GST_ELEMENT (invtelecine), invtelecine->srcpad);
-
-  invtelecine->bad_flag_metric = 1.0;
-  invtelecine->verify_field_flags = FALSE;
-}
-
-static gboolean
-gst_invtelecine_setcaps (GstPad * pad, GstCaps * caps)
-{
-  GstInvtelecine *invtelecine;
-  gboolean ret;
-  int width, height;
-  GstVideoFormat format;
-  gboolean interlaced = TRUE;
-  int fps_n, fps_d;
-
-  invtelecine = GST_INVTELECINE (gst_pad_get_parent (pad));
-
-  ret = gst_video_format_parse_caps (caps, &format, &width, &height);
-  gst_video_format_parse_caps_interlaced (caps, &interlaced);
-  ret &= gst_video_parse_caps_framerate (caps, &fps_n, &fps_d);
-
-  if (ret) {
-    GstCaps *srccaps = gst_caps_copy (caps);
-
-    ret = gst_pad_set_caps (invtelecine->srcpad, srccaps);
-
-  }
-
-  if (ret) {
-    invtelecine->format = format;
-    invtelecine->width = width;
-    invtelecine->height = height;
-    invtelecine->interlaced = interlaced;
-  }
-
-  g_object_unref (invtelecine);
-
-  return ret;
-}
-
-
-
-#define MAX_FIELD_SCORE 100
-
-static double
-gst_invtelecine_compare_fields (GstInvtelecine * invtelecine, int field1,
-    int field2)
-{
-  int i;
-  int j;
-  guint8 *data1;
-  guint8 *data2_1;
-  guint8 *data2_2;
-  int field_index;
-  int have;
-  int vave;
-  int hdiff;
-  int vdiff;
-  double sum;
-  double linesum;
-  double den;
-
-  if (field1 < 0 || field2 < 0)
-    return MAX_FIELD_SCORE;
-  if (invtelecine->fifo[field1].buffer == NULL ||
-      invtelecine->fifo[field2].buffer == NULL)
-    return MAX_FIELD_SCORE;
-  if (invtelecine->fifo[field1].buffer == invtelecine->fifo[field2].buffer &&
-      invtelecine->fifo[field1].field_index ==
-      invtelecine->fifo[field2].field_index) {
-    return 0;
-  }
-
-  sum = 0;
-  field_index = invtelecine->fifo[field1].field_index;
-  for (j = field_index; j < invtelecine->height; j += 2) {
-    if (j == 0 || j == invtelecine->height - 1)
-      continue;
-
-    if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
-        invtelecine->format == GST_VIDEO_FORMAT_YV12) {
-      data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
-          invtelecine->width * j;
-      data2_1 =
-          GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * (j - 1);
-      data2_2 =
-          GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * (j + 1);
-
-      /* planar 4:2:0 */
-      linesum = 0;
-      for (i = 1; i < invtelecine->width - 1; i++) {
-        have = data1[i - 1] + data1[i + 1];
-        hdiff = abs (data1[i - 1] - data1[i + 1]);
-        vave = data2_1[i] + data2_2[i];
-        vdiff = abs (data2_1[i] - data2_2[i]);
-        den = MAX (1, MAX (hdiff, vdiff));
-        linesum += (have - vave) * (have - vave) / (den * den);
-      }
-    } else {
-      data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
-          invtelecine->width * 2 * j;
-      data2_1 =
-          GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * 2 * (j - 1);
-      data2_2 =
-          GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * 2 * (j + 1);
-      if (invtelecine->format == GST_VIDEO_FORMAT_UYVY) {
-        data1++;
-        data2_1++;
-        data2_2++;
-      }
-
-      /* packed 4:2:2 */
-      linesum = 0;
-      for (i = 1; i < invtelecine->width - 1; i++) {
-        have = data1[(i - 1) * 2] + data1[(i + 1) * 2];
-        hdiff = abs (data1[(i - 1) * 2] - data1[(i + 1) * 2]);
-        vave = data2_1[i * 2] + data2_2[i * 2];
-        vdiff = abs (data2_1[i * 2] - data2_2[i * 2]);
-        den = MAX (1, MAX (hdiff, vdiff));
-        linesum += (have - vave) * (have - vave) / (den * den);
-      }
-    }
-    sum += linesum;
-  }
-
-  sum /= (invtelecine->width * invtelecine->height / 2);
-
-  return MIN (sum, MAX_FIELD_SCORE);
-}
-
-static double
-gst_invtelecine_compare_fields_mse (GstInvtelecine * invtelecine, int field1,
-    int field2)
-{
-  int i;
-  int j;
-  guint8 *data1;
-  guint8 *data2;
-  int field_index1;
-  int field_index2;
-  int diff;
-  double sum;
-  double linesum;
-
-  if (field1 < 0 || field2 < 0)
-    return MAX_FIELD_SCORE;
-  if (invtelecine->fifo[field1].buffer == NULL ||
-      invtelecine->fifo[field2].buffer == NULL)
-    return MAX_FIELD_SCORE;
-  if (invtelecine->fifo[field1].buffer == invtelecine->fifo[field2].buffer &&
-      invtelecine->fifo[field1].field_index ==
-      invtelecine->fifo[field2].field_index) {
-    return 0;
-  }
-
-  sum = 0;
-  field_index1 = invtelecine->fifo[field1].field_index;
-  field_index2 = invtelecine->fifo[field2].field_index;
-  if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
-      invtelecine->format == GST_VIDEO_FORMAT_YV12) {
-    for (j = 0; j < invtelecine->height; j += 2) {
-      data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
-          invtelecine->width * (j + field_index1);
-      data2 = GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * (j + field_index2);
-
-      linesum = 0;
-      for (i = 0; i < invtelecine->width; i++) {
-        diff = (data1[i] - data2[i]);
-        linesum += diff * diff;
-      }
-      sum += linesum;
-    }
-  } else {
-    for (j = 0; j < invtelecine->height; j += 2) {
-      data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
-          invtelecine->width * 2 * (j + field_index1);
-      data2 = GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * 2 * (j + field_index2);
-
-      if (invtelecine->format == GST_VIDEO_FORMAT_UYVY) {
-        data1++;
-        data2++;
-      }
-
-      linesum = 0;
-      for (i = 0; i < invtelecine->width; i++) {
-        diff = (data1[i * 2] - data2[i * 2]);
-        linesum += diff * diff;
-      }
-      sum += linesum;
-    }
-  }
-
-  sum /= invtelecine->width * invtelecine->height / 2;
-
-  //return MIN (sum, MAX_FIELD_SCORE);
-  return sum;
-}
-
-static double
-gst_invtelecine_compare_fields_mse_ave (GstInvtelecine * invtelecine,
-    int field1, int field2)
-{
-  int i;
-  int j;
-  guint8 *data1;
-  guint8 *data2_1;
-  guint8 *data2_2;
-  int field_index1;
-  int field_index2 G_GNUC_UNUSED;       /* FIXME: should it be used? */
-  double diff;
-  double sum;
-  double linesum;
-
-#define MAX_FIELD_SCORE_2 1e9
-  if (field1 < 0 || field2 < 0)
-    return MAX_FIELD_SCORE_2;
-  if (invtelecine->fifo[field1].buffer == NULL ||
-      invtelecine->fifo[field2].buffer == NULL)
-    return MAX_FIELD_SCORE_2;
-  if (invtelecine->fifo[field1].buffer == invtelecine->fifo[field2].buffer &&
-      invtelecine->fifo[field1].field_index ==
-      invtelecine->fifo[field2].field_index) {
-    return 0;
-  }
-
-  sum = 0;
-  field_index1 = invtelecine->fifo[field1].field_index;
-  field_index2 = invtelecine->fifo[field2].field_index;
-  if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
-      invtelecine->format == GST_VIDEO_FORMAT_YV12) {
-    for (j = 0; j < invtelecine->height; j += 2) {
-      if (j + field_index1 == 0 || j + field_index1 == invtelecine->height - 1)
-        continue;
-
-      data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
-          invtelecine->width * (j + field_index1);
-      data2_1 = GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * (j + field_index1 - 1);
-      data2_2 = GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * (j + field_index1 + 1);
-
-      linesum = 0;
-      for (i = 0; i < invtelecine->width; i++) {
-        diff = (data1[i] - (data2_1[i] + data2_2[i]) / 2);
-        diff *= diff;
-        linesum += diff * diff;
-      }
-      sum += linesum;
-    }
-  } else {
-    for (j = 0; j < invtelecine->height; j += 2) {
-      if (j + field_index1 == 0 || j + field_index1 == invtelecine->height - 1)
-        continue;
-
-      data1 = GST_BUFFER_DATA (invtelecine->fifo[field1].buffer) +
-          invtelecine->width * 2 * (j + field_index1);
-      data2_1 = GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * 2 * (j + field_index1 - 1);
-      data2_2 = GST_BUFFER_DATA (invtelecine->fifo[field2].buffer) +
-          invtelecine->width * 2 * (j + field_index1 + 1);
-
-      if (invtelecine->format == GST_VIDEO_FORMAT_UYVY) {
-        data1++;
-        data2_1++;
-        data2_2++;
-      }
-
-      linesum = 0;
-      for (i = 0; i < invtelecine->width; i++) {
-        diff = (data1[i] - (data2_1[i] + data2_2[i]) / 2);
-        diff *= diff;
-        linesum += diff * diff;
-      }
-      sum += linesum;
-    }
-  }
-
-  sum /= invtelecine->width * (invtelecine->height / 2 - 1);
-
-  g_assert (sum > 0);
-
-  //return MIN (sum, MAX_FIELD_SCORE);
-  return sqrt (sum);
-}
-
-static void
-gst_invtelecine_push_field (GstInvtelecine * invtelecine, GstBuffer * buffer,
-    int field_index)
-{
-  int i;
-
-  g_assert (invtelecine->num_fields < FIFO_SIZE - 1);
-  g_assert (invtelecine->num_fields >= 0);
-
-  i = invtelecine->num_fields;
-  invtelecine->num_fields++;
-  GST_DEBUG ("ref %p", buffer);
-  invtelecine->fifo[i].buffer = gst_buffer_ref (buffer);
-  invtelecine->fifo[i].field_index = field_index;
-  invtelecine->fifo[i].prev =
-      gst_invtelecine_compare_fields (invtelecine, i, i - 1);
-  invtelecine->fifo[i].prev2 =
-      gst_invtelecine_compare_fields_mse (invtelecine, i, i - 2);
-
-  if (invtelecine->verify_field_flags) {
-    invtelecine->fifo[i].prev3 =
-        gst_invtelecine_compare_fields_mse_ave (invtelecine, i, i - 3);
-    invtelecine->fifo[i].prev1 =
-        gst_invtelecine_compare_fields_mse_ave (invtelecine, i, i - 1);
-
-#define ALPHA 0.2
-    if (invtelecine->fifo[i].prev3 != 0) {
-      invtelecine->bad_flag_metric *= (1 - ALPHA);
-      invtelecine->bad_flag_metric +=
-          ALPHA * (invtelecine->fifo[i].prev1 / invtelecine->fifo[i].prev3);
-    }
-#if 0
-    g_print ("42 %g %g %g\n", invtelecine->bad_flag_metric,
-        invtelecine->fifo[i].prev1, invtelecine->fifo[i].prev3);
-#endif
-
-    if (invtelecine->bad_flag_metric > 1.2) {
-      GST_WARNING ("bad field flags?  metric %g > 1.2",
-          invtelecine->bad_flag_metric);
-    }
-  }
-
-}
-
-int pulldown_2_3[] = { 2, 3 };
-
-typedef struct _PulldownFormat PulldownFormat;
-struct _PulldownFormat
-{
-  const char *name;
-  int cycle_length;
-  int n_fields[10];
-};
-
-static const PulldownFormat formats[] = {
-  /* interlaced */
-  {"interlaced", 1, {1}},
-  /* 30p */
-  {"2:2", 2, {2}},
-  /* 24p */
-  {"3:2", 5, {2, 3,}},
-};
-
-static int
-get_score_2 (GstInvtelecine * invtelecine, int format_index, int phase)
-{
-  const PulldownFormat *format = formats + format_index;
-  int field_index;
-  int k;
-  int i;
-  int score;
-
-  GST_DEBUG ("score2 format_index %d phase %d", format_index, phase);
-
-  phase = (invtelecine->field + phase) % format->cycle_length;
-
-  field_index = 0;
-  k = 0;
-  while (phase > 0) {
-    field_index++;
-    if (field_index >= format->n_fields[k]) {
-      field_index = 0;
-      k++;
-      if (format->n_fields[k] == 0) {
-        k = 0;
-      }
-    }
-    phase--;
-  }
-
-  /* k is the frame index in the format */
-  /* field_index is the field index in the frame */
-
-  score = 0;
-  for (i = 0; i < 15; i++) {
-    if (field_index == 0) {
-      if (invtelecine->fifo[i].prev > 50) {
-        /* Strong picture change signal */
-        score++;
-      }
-    } else {
-      if (invtelecine->fifo[i].prev > 50) {
-        /* A secondary field with visible combing */
-        score -= 5;
-      } else if (field_index == 1) {
-        if (invtelecine->fifo[i].prev > 5) {
-          score--;
-        } else if (invtelecine->fifo[i].prev < 3) {
-          /* In the noise */
-          score++;
-        }
-      } else {
-        if (invtelecine->fifo[i].prev2 < 1) {
-          score += 2;
-        }
-        if (invtelecine->fifo[i].prev2 > 10) {
-          /* A tertiary field that doesn't match */
-          score -= 5;
-        }
-      }
-    }
-
-    GST_DEBUG ("i=%d phase=%d fi=%d prev=%g score=%d", i, phase, field_index,
-        invtelecine->fifo[i].prev, score);
-
-    field_index++;
-    if (field_index >= format->n_fields[k]) {
-      field_index = 0;
-      k++;
-      if (format->n_fields[k] == 0) {
-        k = 0;
-      }
-    }
-  }
-
-  return score;
-}
-
-int format_table[] = { 0, 1, 1, 2, 2, 2, 2, 2 };
-int phase_table[] = { 0, 0, 1, 0, 1, 2, 3, 4 };
-
-static void
-gst_invtelecine_process (GstInvtelecine * invtelecine, gboolean flush)
-{
-  //int score;
-  int num_fields;
-  int scores[8];
-  int i;
-  int max_i;
-  //int format;
-  int phase;
-
-  GST_DEBUG ("process %d", invtelecine->num_fields);
-  while (invtelecine->num_fields > 15) {
-    num_fields = 0;
-
-    for (i = 0; i < 8; i++) {
-      scores[i] = get_score_2 (invtelecine, format_table[i], phase_table[i]);
-    }
-
-#if 0
-    g_print ("scores %d %d %d %d %d %d %d %d %d\n", invtelecine->field,
-        scores[0], scores[1], scores[2], scores[3],
-        scores[4], scores[5], scores[6], scores[7]);
-#endif
-
-    max_i = invtelecine->last_lock;
-    for (i = 0; i < 8; i++) {
-      int field_index;
-      int k;
-
-      phase = (invtelecine->field + phase_table[i]) %
-          formats[format_table[i]].cycle_length;
-
-      field_index = 0;
-      k = 0;
-      while (phase > 0) {
-        field_index++;
-        if (field_index >= formats[format_table[i]].n_fields[k]) {
-          field_index = 0;
-          k++;
-          if (formats[format_table[i]].n_fields[k] == 0) {
-            k = 0;
-          }
-        }
-        phase--;
-      }
-
-      if (field_index == 0) {
-        if (scores[i] > scores[max_i]) {
-          max_i = i;
-        }
-      }
-    }
-
-    if (max_i != invtelecine->last_lock) {
-
-      GST_WARNING ("new structure %s, phase %d",
-          formats[format_table[max_i]].name, phase_table[max_i]);
-
-      invtelecine->last_lock = max_i;
-    }
-
-    {
-      int field_index;
-      int k;
-
-      phase = (invtelecine->field + phase_table[max_i]) %
-          formats[format_table[max_i]].cycle_length;
-
-      field_index = 0;
-      k = 0;
-      while (phase > 0) {
-        field_index++;
-        if (field_index >= formats[format_table[max_i]].n_fields[k]) {
-          field_index = 0;
-          k++;
-          if (formats[format_table[max_i]].n_fields[k] == 0) {
-            k = 0;
-          }
-        }
-        phase--;
-      }
-
-      num_fields = formats[format_table[max_i]].n_fields[k];
-    }
-
-    if (num_fields == 0) {
-      GST_WARNING ("unlocked");
-      num_fields = 1;
-    }
-
-    gst_invtelecine_output_fields (invtelecine, num_fields);
-
-    while (num_fields > 0) {
-      GST_DEBUG ("unref %p", invtelecine->fifo[0].buffer);
-      gst_buffer_unref (invtelecine->fifo[0].buffer);
-      invtelecine->num_fields--;
-      memmove (invtelecine->fifo, invtelecine->fifo + 1,
-          invtelecine->num_fields * sizeof (Field));
-      num_fields--;
-      invtelecine->field++;
-    }
-
-    invtelecine->phase++;
-    if (invtelecine->phase == 2) {
-      invtelecine->phase = 0;
-    }
-  }
-
-}
-
-static void
-copy_field (GstInvtelecine * invtelecine, GstBuffer * d, GstBuffer * s,
-    int field_index)
-{
-  int j;
-  guint8 *dest;
-  guint8 *src;
-  int width = invtelecine->width;
-  int height = invtelecine->height;
-
-  if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
-      invtelecine->format == GST_VIDEO_FORMAT_YV12) {
-    /* planar 4:2:0 */
-    for (j = field_index; j < height; j += 2) {
-      dest = GST_BUFFER_DATA (d) + j * width;
-      src = GST_BUFFER_DATA (s) + j * width;
-      memcpy (dest, src, width);
-    }
-    for (j = field_index; j < height / 2; j += 2) {
-      dest = GST_BUFFER_DATA (d) + width * height + j * width / 2;
-      src = GST_BUFFER_DATA (s) + width * height + j * width / 2;
-      memcpy (dest, src, width / 2);
-    }
-    for (j = field_index; j < height / 2; j += 2) {
-      dest =
-          GST_BUFFER_DATA (d) + width * height + width / 2 * height / 2 +
-          j * width / 2;
-      src =
-          GST_BUFFER_DATA (s) + width * height + width / 2 * height / 2 +
-          j * width / 2;
-      memcpy (dest, src, width / 2);
-    }
-  } else {
-    /* packed 4:2:2 */
-    for (j = field_index; j < height; j += 2) {
-      dest = GST_BUFFER_DATA (d) + j * width * 2;
-      src = GST_BUFFER_DATA (s) + j * width * 2;
-      memcpy (dest, src, width * 2);
-    }
-  }
-}
-
-static GstFlowReturn
-gst_invtelecine_output_fields (GstInvtelecine * invtelecine, int num_fields)
-{
-  GstBuffer *buffer;
-  int field_index;
-
-  field_index = invtelecine->fifo[0].field_index;
-
-  if (invtelecine->format == GST_VIDEO_FORMAT_I420 ||
-      invtelecine->format == GST_VIDEO_FORMAT_YV12) {
-    buffer =
-        gst_buffer_new_and_alloc (invtelecine->width * invtelecine->height * 3 /
-        2);
-  } else {
-    buffer =
-        gst_buffer_new_and_alloc (invtelecine->width * invtelecine->height * 2);
-  }
-
-  copy_field (invtelecine, buffer, invtelecine->fifo[0].buffer, field_index);
-  copy_field (invtelecine, buffer, invtelecine->fifo[1].buffer,
-      field_index ^ 1);
-
-  gst_buffer_set_caps (buffer, GST_BUFFER_CAPS (invtelecine->fifo[0].buffer));
-
-  GST_BUFFER_TIMESTAMP (buffer) =
-      GST_BUFFER_TIMESTAMP (invtelecine->fifo[0].buffer);
-  GST_BUFFER_DURATION (buffer) =
-      gst_util_uint64_scale (GST_SECOND, num_fields * 1001, 60000);
-  if (num_fields == 3) {
-    GST_BUFFER_FLAG_SET (buffer, GST_VIDEO_BUFFER_RFF);
-  }
-  if (num_fields == 1) {
-    GST_BUFFER_FLAG_SET (buffer, GST_VIDEO_BUFFER_ONEFIELD);
-  }
-  if (field_index == 0) {
-    GST_BUFFER_FLAG_SET (buffer, GST_VIDEO_BUFFER_TFF);
-  }
-
-  return gst_pad_push (invtelecine->srcpad, buffer);
-}
-
-static GstFlowReturn
-gst_invtelecine_chain (GstPad * pad, GstBuffer * buffer)
-{
-  GstInvtelecine *invtelecine = GST_INVTELECINE (gst_pad_get_parent (pad));
-  int field_index;
-
-  GST_DEBUG ("Received buffer at %u:%02u:%02u:%09u",
-      (guint) (GST_BUFFER_TIMESTAMP (buffer) / (GST_SECOND * 60 * 60)),
-      (guint) ((GST_BUFFER_TIMESTAMP (buffer) / (GST_SECOND * 60)) % 60),
-      (guint) ((GST_BUFFER_TIMESTAMP (buffer) / GST_SECOND) % 60),
-      (guint) (GST_BUFFER_TIMESTAMP (buffer) % GST_SECOND));
-
-  field_index = (GST_BUFFER_FLAGS (buffer) & GST_VIDEO_BUFFER_TFF) ? 0 : 1;
-//#define BAD
-#ifdef BAD
-  field_index ^= 1;
-#endif
-
-  GST_DEBUG ("duration %" GST_TIME_FORMAT " flags %04x %s %s %s",
-      GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)),
-      GST_BUFFER_FLAGS (buffer),
-      (GST_BUFFER_FLAGS (buffer) & GST_VIDEO_BUFFER_TFF) ? "tff" : "",
-      (GST_BUFFER_FLAGS (buffer) & GST_VIDEO_BUFFER_RFF) ? "rff" : "",
-      (GST_BUFFER_FLAGS (buffer) & GST_VIDEO_BUFFER_ONEFIELD) ? "onefield" :
-      "");
-
-  if (GST_BUFFER_FLAGS (buffer) & GST_BUFFER_FLAG_DISCONT) {
-    GST_ERROR ("discont");
-
-    invtelecine->next_field = field_index;
-    invtelecine->bad_flag_metric = 1.0;
-  }
-
-  if (invtelecine->next_field != field_index) {
-    GST_WARNING ("wrong field first, expecting %d got %d",
-        invtelecine->next_field, field_index);
-    invtelecine->next_field = field_index;
-  }
-
-  gst_invtelecine_push_field (invtelecine, buffer, invtelecine->next_field);
-  invtelecine->next_field ^= 1;
-
-  if (!(GST_BUFFER_FLAGS (buffer) & GST_VIDEO_BUFFER_ONEFIELD)) {
-    gst_invtelecine_push_field (invtelecine, buffer, invtelecine->next_field);
-    invtelecine->next_field ^= 1;
-
-    if ((GST_BUFFER_FLAGS (buffer) & GST_VIDEO_BUFFER_RFF)) {
-      gst_invtelecine_push_field (invtelecine, buffer, invtelecine->next_field);
-      invtelecine->next_field ^= 1;
-    }
-  }
-
-  gst_invtelecine_process (invtelecine, FALSE);
-
-  gst_buffer_unref (buffer);
-
-  gst_object_unref (invtelecine);
-
-  return GST_FLOW_OK;
-}
-
-static void
-gst_invtelecine_set_property (GObject * object,
-    guint prop_id, const GValue * value, GParamSpec * pspec)
-{
-  GstInvtelecine *invtelecine = GST_INVTELECINE (object);
-
-  switch (prop_id) {
-    case PROP_VERIFY_FIELD_FLAGS:
-      invtelecine->verify_field_flags = g_value_get_boolean (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_invtelecine_get_property (GObject * object,
-    guint prop_id, GValue * value, GParamSpec * pspec)
-{
-  GstInvtelecine *invtelecine = GST_INVTELECINE (object);
-
-  switch (prop_id) {
-    case PROP_VERIFY_FIELD_FLAGS:
-      g_value_set_boolean (value, invtelecine->verify_field_flags);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static GstStateChangeReturn
-gst_invtelecine_change_state (GstElement * element, GstStateChange transition)
-{
-  //GstInvtelecine *invtelecine = GST_INVTELECINE (element);
-
-  switch (transition) {
-    case GST_STATE_CHANGE_PAUSED_TO_READY:
-      //gst_invtelecine_reset (invtelecine);
-      break;
-    default:
-      break;
-  }
-
-  if (parent_class->change_state)
-    return parent_class->change_state (element, transition);
-
-  return GST_STATE_CHANGE_SUCCESS;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
-  GST_DEBUG_CATEGORY_INIT (gst_invtelecine_debug, "invtelecine", 0,
-      "Inverse telecine element");
-
-  return gst_element_register (plugin, "invtelecine", GST_RANK_NONE,
-      GST_TYPE_INVTELECINE);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
-    GST_VERSION_MINOR,
-    "invtelecine",
-    "Inverse Telecine",
-    plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)