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videofiltersbad: port to 1.0

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This commit is contained in:
David Schleef 2013-04-05 21:31:18 -07:00
parent 13ac73bef4
commit 83862968a3
8 changed files with 231 additions and 566 deletions
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2
configure.ac
View file

@ -321,7 +321,7 @@ GST_PLUGINS_NONPORTED=" aiff \
kate librfb \ kate librfb \
mve mythtv nsf nuvdemux \ mve mythtv nsf nuvdemux \
patchdetect real \ patchdetect real \
sdi stereo tta videofilters \ sdi stereo tta \
videomeasure videosignal vmnc \ videomeasure videosignal vmnc \
linsys vcd \ linsys vcd \
apexsink cdaudio dc1394 dirac directfb \ apexsink cdaudio dc1394 dirac directfb \

2
gst/videofilters/Makefile.am
View file

@ -4,8 +4,6 @@ plugin_LTLIBRARIES = libgstvideofiltersbad.la
#include $(top_srcdir)/common/orc.mak #include $(top_srcdir)/common/orc.mak
libgstvideofiltersbad_la_SOURCES = \ libgstvideofiltersbad_la_SOURCES = \
gstvideofilter2.c \
gstvideofilter2.h \
gstzebrastripe.c \ gstzebrastripe.c \
gstscenechange.c \ gstscenechange.c \
gstvideofiltersbad.c gstvideofiltersbad.c

177
gst/videofilters/gstscenechange.c
View file

@ -78,11 +78,10 @@
#endif #endif
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h> #include <gst/video/video.h>
#include "gstvideofilter2.h" #include <gst/video/gstvideofilter.h>
#include "gstscenechange.h"
#include <string.h> #include <string.h>
#include "gstscenechange.h"
GST_DEBUG_CATEGORY_STATIC (gst_scene_change_debug_category); GST_DEBUG_CATEGORY_STATIC (gst_scene_change_debug_category);
#define GST_CAT_DEFAULT gst_scene_change_debug_category #define GST_CAT_DEFAULT gst_scene_change_debug_category
@ -97,12 +96,11 @@ static void gst_scene_change_get_property (GObject * object,
static void gst_scene_change_dispose (GObject * object); static void gst_scene_change_dispose (GObject * object);
static void gst_scene_change_finalize (GObject * object); static void gst_scene_change_finalize (GObject * object);
static gboolean gst_scene_change_start (GstBaseTransform * trans); static gboolean gst_scene_change_set_info (GstVideoFilter * filter,
static gboolean gst_scene_change_stop (GstBaseTransform * trans); GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
static GstFlowReturn GstVideoInfo * out_info);
gst_scene_change_prefilter (GstVideoFilter2 * videofilter2, GstBuffer * buf); static GstFlowReturn gst_scene_change_transform_frame_ip (GstVideoFilter *
filter, GstVideoFrame * frame);
static GstVideoFilter2Functions gst_scene_change_filter_functions[];
#undef TESTING #undef TESTING
#ifdef TESTING #ifdef TESTING
@ -114,54 +112,46 @@ enum
PROP_0 PROP_0
}; };
/* pad templates */ #define VIDEO_CAPS \
GST_VIDEO_CAPS_MAKE("{ I420, Y42B, Y41B, Y444 }")
/* class initialization */ /* class initialization */
#define DEBUG_INIT(bla) \ G_DEFINE_TYPE_WITH_CODE (GstSceneChange, gst_scene_change,
GST_DEBUG_CATEGORY_INIT (gst_scene_change_debug_category, "scenechange", 0, \ GST_TYPE_VIDEO_FILTER,
"debug category for scenechange element"); GST_DEBUG_CATEGORY_INIT (gst_scene_change_debug_category, "scenechange", 0,
"debug category for scenechange element"));
GST_BOILERPLATE_FULL (GstSceneChange, gst_scene_change, GstVideoFilter2,
GST_TYPE_VIDEO_FILTER2, DEBUG_INIT);
static void
gst_scene_change_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_static_metadata (element_class, "Scene change detector",
"Video/Filter", "Detects scene changes in video",
"David Schleef <ds@entropywave.com>");
}
static void static void
gst_scene_change_class_init (GstSceneChangeClass * klass) gst_scene_change_class_init (GstSceneChangeClass * klass)
{ {
GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseTransformClass *base_transform_class = GstVideoFilterClass *video_filter_class = GST_VIDEO_FILTER_CLASS (klass);
GST_BASE_TRANSFORM_CLASS (klass);
GstVideoFilter2Class *video_filter2_class = GST_VIDEO_FILTER2_CLASS (klass); gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
gst_caps_from_string (VIDEO_CAPS)));
gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
gst_caps_from_string (VIDEO_CAPS)));
gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
"Scene change detector",
"Video/Filter", "Detects scene changes in video",
"David Schleef <ds@entropywave.com>");
gobject_class->set_property = gst_scene_change_set_property; gobject_class->set_property = gst_scene_change_set_property;
gobject_class->get_property = gst_scene_change_get_property; gobject_class->get_property = gst_scene_change_get_property;
gobject_class->dispose = gst_scene_change_dispose; gobject_class->dispose = gst_scene_change_dispose;
gobject_class->finalize = gst_scene_change_finalize; gobject_class->finalize = gst_scene_change_finalize;
base_transform_class->start = GST_DEBUG_FUNCPTR (gst_scene_change_start); video_filter_class->set_info = GST_DEBUG_FUNCPTR (gst_scene_change_set_info);
base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_scene_change_stop); video_filter_class->transform_frame_ip =
video_filter2_class->prefilter = GST_DEBUG_FUNCPTR (gst_scene_change_transform_frame_ip);
GST_DEBUG_FUNCPTR (gst_scene_change_prefilter);
gst_video_filter2_class_add_functions (video_filter2_class,
gst_scene_change_filter_functions);
} }
static void static void
gst_scene_change_init (GstSceneChange * scenechange, gst_scene_change_init (GstSceneChange * scenechange)
GstSceneChangeClass * scenechange_class)
{ {
} }
@ -169,7 +159,9 @@ void
gst_scene_change_set_property (GObject * object, guint property_id, gst_scene_change_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec) const GValue * value, GParamSpec * pspec)
{ {
g_return_if_fail (GST_IS_SCENE_CHANGE (object)); GstSceneChange *scenechange = GST_SCENE_CHANGE (object);
GST_DEBUG_OBJECT (scenechange, "set_property");
switch (property_id) { switch (property_id) {
default: default:
@ -182,7 +174,9 @@ void
gst_scene_change_get_property (GObject * object, guint property_id, gst_scene_change_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec) GValue * value, GParamSpec * pspec)
{ {
g_return_if_fail (GST_IS_SCENE_CHANGE (object)); GstSceneChange *scenechange = GST_SCENE_CHANGE (object);
GST_DEBUG_OBJECT (scenechange, "get_property");
switch (property_id) { switch (property_id) {
default: default:
@ -194,105 +188,107 @@ gst_scene_change_get_property (GObject * object, guint property_id,
void void
gst_scene_change_dispose (GObject * object) gst_scene_change_dispose (GObject * object)
{ {
g_return_if_fail (GST_IS_SCENE_CHANGE (object)); GstSceneChange *scenechange = GST_SCENE_CHANGE (object);
GST_DEBUG_OBJECT (scenechange, "dispose");
/* clean up as possible. may be called multiple times */ /* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object); G_OBJECT_CLASS (gst_scene_change_parent_class)->dispose (object);
} }
void void
gst_scene_change_finalize (GObject * object) gst_scene_change_finalize (GObject * object)
{ {
GstSceneChange *scenechange; GstSceneChange *scenechange = GST_SCENE_CHANGE (object);
g_return_if_fail (GST_IS_SCENE_CHANGE (object)); GST_DEBUG_OBJECT (scenechange, "finalize");
scenechange = GST_SCENE_CHANGE (object);
if (scenechange->oldbuf) /* clean up object here */
gst_buffer_unref (scenechange->oldbuf);
G_OBJECT_CLASS (parent_class)->finalize (object); G_OBJECT_CLASS (gst_scene_change_parent_class)->finalize (object);
} }
static gboolean static gboolean
gst_scene_change_start (GstBaseTransform * trans) gst_scene_change_set_info (GstVideoFilter * filter, GstCaps * incaps,
GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
{ {
GstSceneChange *scenechange = GST_SCENE_CHANGE (filter);
GST_DEBUG_OBJECT (scenechange, "set_info");
return TRUE; return TRUE;
} }
static gboolean
gst_scene_change_stop (GstBaseTransform * trans)
{
return TRUE;
}
static GstFlowReturn
gst_scene_change_prefilter (GstVideoFilter2 * video_filter2, GstBuffer * buf)
{
return GST_FLOW_OK;
}
static double static double
get_frame_score (guint8 * s1, guint8 * s2, int width, int height) get_frame_score (GstVideoFrame * f1, GstVideoFrame * f2)
{ {
int i; int i;
int j; int j;
int score = 0; int score = 0;
int width, height;
guint8 *s1;
guint8 *s2;
width = f1->info.width;
height = f1->info.height;
for (j = 0; j < height; j++) { for (j = 0; j < height; j++) {
s1 = (guint8 *) f1->data[0] + f1->info.stride[0] * j;
s2 = (guint8 *) f2->data[0] + f2->info.stride[0] * j;
for (i = 0; i < width; i++) { for (i = 0; i < width; i++) {
score += ABS (s1[i] - s2[i]); score += ABS (s1[i] - s2[i]);
} }
s1 += width;
s2 += width;
} }
return ((double) score) / (width * height); return ((double) score) / (width * height);
} }
static GstFlowReturn static GstFlowReturn
gst_scene_change_filter_ip_I420 (GstVideoFilter2 * videofilter2, gst_scene_change_transform_frame_ip (GstVideoFilter * filter,
GstBuffer * buf, int start, int end) GstVideoFrame * frame)
{ {
GstSceneChange *scenechange; GstSceneChange *scenechange = GST_SCENE_CHANGE (filter);
GstVideoFrame oldframe;
double score_min; double score_min;
double score_max; double score_max;
double threshold; double threshold;
double score; double score;
gboolean change; gboolean change;
gboolean ret;
int i; int i;
int width;
int height;
g_return_val_if_fail (GST_IS_SCENE_CHANGE (videofilter2), GST_FLOW_ERROR); GST_DEBUG_OBJECT (scenechange, "transform_frame_ip");
scenechange = GST_SCENE_CHANGE (videofilter2);
width = GST_VIDEO_FILTER2_WIDTH (videofilter2);
height = GST_VIDEO_FILTER2_HEIGHT (videofilter2);
if (!scenechange->oldbuf) { if (!scenechange->oldbuf) {
scenechange->n_diffs = 0; scenechange->n_diffs = 0;
memset (scenechange->diffs, 0, sizeof (double) * SC_N_DIFFS); memset (scenechange->diffs, 0, sizeof (double) * SC_N_DIFFS);
scenechange->oldbuf = gst_buffer_ref (buf); scenechange->oldbuf = gst_buffer_ref (frame->buffer);
return GST_FLOW_OK; return GST_FLOW_OK;
} }
score = get_frame_score (GST_BUFFER_DATA (scenechange->oldbuf), ret =
GST_BUFFER_DATA (buf), width, height); gst_video_frame_map (&oldframe, &scenechange->oldinfo,
scenechange->oldbuf, GST_MAP_READ);
if (!ret) {
GST_ERROR_OBJECT (scenechange, "failed to map old video frame");
return GST_FLOW_ERROR;
}
score = get_frame_score (&oldframe, frame);
gst_video_frame_unmap (&oldframe);
gst_buffer_unref (scenechange->oldbuf);
scenechange->oldbuf = gst_buffer_ref (frame->buffer);
memcpy (&scenechange->oldinfo, &frame->info, sizeof (GstVideoInfo));
memmove (scenechange->diffs, scenechange->diffs + 1, memmove (scenechange->diffs, scenechange->diffs + 1,
sizeof (double) * (SC_N_DIFFS - 1)); sizeof (double) * (SC_N_DIFFS - 1));
scenechange->diffs[SC_N_DIFFS - 1] = score; scenechange->diffs[SC_N_DIFFS - 1] = score;
scenechange->n_diffs++; scenechange->n_diffs++;
gst_buffer_unref (scenechange->oldbuf);
scenechange->oldbuf = gst_buffer_ref (buf);
score_min = scenechange->diffs[0]; score_min = scenechange->diffs[0];
score_max = scenechange->diffs[0]; score_max = scenechange->diffs[0];
for (i = 1; i < SC_N_DIFFS - 1; i++) { for (i = 1; i < SC_N_DIFFS - 1; i++) {
@ -328,11 +324,13 @@ gst_scene_change_filter_ip_I420 (GstVideoFilter2 * videofilter2,
if (change) { if (change) {
GstEvent *event; GstEvent *event;
GST_DEBUG_OBJECT (scenechange, "%d %g %g %g %d", GST_INFO_OBJECT (scenechange, "%d %g %g %g %d",
scenechange->n_diffs, score / threshold, score, threshold, change); scenechange->n_diffs, score / threshold, score, threshold, change);
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, event =
gst_structure_new ("GstForceKeyUnit", NULL)); gst_video_event_new_downstream_force_key_unit (GST_BUFFER_PTS
(frame->buffer), GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE, FALSE,
scenechange->count++);
gst_pad_push_event (GST_BASE_TRANSFORM_SRC_PAD (scenechange), event); gst_pad_push_event (GST_BASE_TRANSFORM_SRC_PAD (scenechange), event);
} }
@ -340,11 +338,6 @@ gst_scene_change_filter_ip_I420 (GstVideoFilter2 * videofilter2,
return GST_FLOW_OK; return GST_FLOW_OK;
} }
static GstVideoFilter2Functions gst_scene_change_filter_functions[] = {
{GST_VIDEO_FORMAT_I420, NULL, gst_scene_change_filter_ip_I420},
{GST_VIDEO_FORMAT_UNKNOWN}
};

11
gst/videofilters/gstscenechange.h
View file

@ -1,5 +1,5 @@
/* GStreamer /* GStreamer
* Copyright (C) 2011 FIXME <fixme@example.com> * Copyright (C) 2011 David Schleef <ds@schleef.org>
* *
* This library is free software; you can redistribute it and/or * This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public * modify it under the terms of the GNU Library General Public
@ -20,9 +20,8 @@
#ifndef _GST_SCENE_CHANGE_H_ #ifndef _GST_SCENE_CHANGE_H_
#define _GST_SCENE_CHANGE_H_ #define _GST_SCENE_CHANGE_H_
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h> #include <gst/video/video.h>
#include "gstvideofilter2.h" #include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS G_BEGIN_DECLS
@ -39,16 +38,18 @@ typedef struct _GstSceneChangeClass GstSceneChangeClass;
struct _GstSceneChange struct _GstSceneChange
{ {
GstVideoFilter2 base_scenechange; GstVideoFilter base_scenechange;
int n_diffs; int n_diffs;
double diffs[SC_N_DIFFS]; double diffs[SC_N_DIFFS];
GstBuffer *oldbuf; GstBuffer *oldbuf;
GstVideoInfo oldinfo;
int count;
}; };
struct _GstSceneChangeClass struct _GstSceneChangeClass
{ {
GstVideoFilter2Class base_scenechange_class; GstVideoFilterClass base_scenechange_class;
}; };
GType gst_scene_change_get_type (void); GType gst_scene_change_get_type (void);

269
gst/videofilters/gstvideofilter2.c
View file

@ -1,269 +0,0 @@
/* GStreamer
* Copyright (C) 2011 David 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., 51 Franklin Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstvideofilter2
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h>
#include "gstvideofilter2.h"
GST_DEBUG_CATEGORY_STATIC (gst_video_filter2_debug_category);
#define GST_CAT_DEFAULT gst_video_filter2_debug_category
/* prototypes */
static void gst_video_filter2_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_video_filter2_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_video_filter2_dispose (GObject * object);
static void gst_video_filter2_finalize (GObject * object);
static GstCaps *gst_video_filter2_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps);
static gboolean
gst_video_filter2_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
guint * size);
static gboolean
gst_video_filter2_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps);
static gboolean gst_video_filter2_start (GstBaseTransform * trans);
static gboolean gst_video_filter2_stop (GstBaseTransform * trans);
static GstFlowReturn gst_video_filter2_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static GstFlowReturn gst_video_filter2_transform_ip (GstBaseTransform * trans,
GstBuffer * buf);
enum
{
PROP_0
};
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_video_filter2_debug_category, "videofilter2", 0, \
"debug category for videofilter2 element");
GST_BOILERPLATE_FULL (GstVideoFilter2, gst_video_filter2, GstBaseTransform,
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
static void
gst_video_filter2_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
int i;
GstCaps *caps = NULL;
caps = gst_caps_new_empty ();
for (i = GST_VIDEO_FORMAT_I420; i <= GST_VIDEO_FORMAT_I420; i++) {
gst_caps_append (caps, gst_video_format_new_template_caps (i));
}
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
gst_caps_ref (caps)));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps));
}
static void
gst_video_filter2_class_init (GstVideoFilter2Class * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseTransformClass *base_transform_class =
GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_video_filter2_set_property;
gobject_class->get_property = gst_video_filter2_get_property;
gobject_class->dispose = gst_video_filter2_dispose;
gobject_class->finalize = gst_video_filter2_finalize;
base_transform_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_video_filter2_transform_caps);
base_transform_class->get_unit_size =
GST_DEBUG_FUNCPTR (gst_video_filter2_get_unit_size);
base_transform_class->set_caps =
GST_DEBUG_FUNCPTR (gst_video_filter2_set_caps);
base_transform_class->start = GST_DEBUG_FUNCPTR (gst_video_filter2_start);
base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_video_filter2_stop);
base_transform_class->transform =
GST_DEBUG_FUNCPTR (gst_video_filter2_transform);
base_transform_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_video_filter2_transform_ip);
}
static void
gst_video_filter2_init (GstVideoFilter2 * videofilter2,
GstVideoFilter2Class * videofilter2_class)
{
gst_base_transform_set_qos_enabled (GST_BASE_TRANSFORM (videofilter2), TRUE);
}
void
gst_video_filter2_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
g_return_if_fail (GST_IS_VIDEO_FILTER2 (object));
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_video_filter2_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
g_return_if_fail (GST_IS_VIDEO_FILTER2 (object));
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_video_filter2_dispose (GObject * object)
{
g_return_if_fail (GST_IS_VIDEO_FILTER2 (object));
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_video_filter2_finalize (GObject * object)
{
g_return_if_fail (GST_IS_VIDEO_FILTER2 (object));
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_video_filter2_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
return gst_caps_ref (caps);
}
static gboolean
gst_video_filter2_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
guint * size)
{
GstVideoFormat format;
gint width, height;
gboolean ret;
ret = gst_video_format_parse_caps (caps, &format, &width, &height);
*size = gst_video_format_get_size (format, width, height);
return ret;
}
static gboolean
gst_video_filter2_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps)
{
GstVideoFilter2 *videofilter2;
gboolean ret;
int width;
int height;
GstVideoFormat format;
g_return_val_if_fail (GST_IS_VIDEO_FILTER2 (trans), FALSE);
videofilter2 = GST_VIDEO_FILTER2 (trans);
ret = gst_video_format_parse_caps (incaps, &format, &width, &height);
if (ret) {
videofilter2->format = format;
videofilter2->width = width;
videofilter2->height = height;
}
return ret;
}
static gboolean
gst_video_filter2_start (GstBaseTransform * trans)
{
return FALSE;
}
static gboolean
gst_video_filter2_stop (GstBaseTransform * trans)
{
return FALSE;
}
static GstFlowReturn
gst_video_filter2_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_video_filter2_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
{
GstVideoFilter2 *video_filter2 = GST_VIDEO_FILTER2 (trans);
GstVideoFilter2Class *klass =
GST_VIDEO_FILTER2_CLASS (G_OBJECT_GET_CLASS (trans));
int i;
GstFlowReturn ret;
for (i = 0; klass->functions[i].format != GST_VIDEO_FORMAT_UNKNOWN; i++) {
if (klass->functions[i].format == video_filter2->format) {
ret = klass->functions[i].filter_ip (video_filter2, buf, 0,
video_filter2->height);
return ret;
}
}
return GST_FLOW_ERROR;
}
/* API */
void
gst_video_filter2_class_add_functions (GstVideoFilter2Class * klass,
const GstVideoFilter2Functions * functions)
{
klass->functions = functions;
}

81
gst/videofilters/gstvideofilter2.h
View file

@ -1,81 +0,0 @@
/* GStreamer
* Copyright (C) 2011 David 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_VIDEO_FILTER2_H_
#define _GST_VIDEO_FILTER2_H_
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_VIDEO_FILTER2 (gst_video_filter2_get_type())
#define GST_VIDEO_FILTER2(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_FILTER2,GstVideoFilter2))
#define GST_VIDEO_FILTER2_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_FILTER2,GstVideoFilter2Class))
#define GST_IS_VIDEO_FILTER2(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_FILTER2))
#define GST_IS_VIDEO_FILTER2_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_FILTER2))
typedef struct _GstVideoFilter2 GstVideoFilter2;
typedef struct _GstVideoFilter2Class GstVideoFilter2Class;
typedef struct _GstVideoFilter2Functions GstVideoFilter2Functions;
struct _GstVideoFilter2
{
GstBaseTransform base_videofilter2;
GstVideoFormat format;
int width;
int height;
gpointer _gst_reserved[GST_PADDING_LARGE];
};
struct _GstVideoFilter2Class
{
GstBaseTransformClass base_videofilter2_class;
const GstVideoFilter2Functions *functions;
GstFlowReturn (*prefilter) (GstVideoFilter2 *filter, GstBuffer *inbuf);
gpointer _gst_reserved[GST_PADDING_LARGE];
};
struct _GstVideoFilter2Functions
{
GstVideoFormat format;
GstFlowReturn (*filter) (GstVideoFilter2 *filter, GstBuffer *inbuf,
GstBuffer *outbuf, int start, int end);
GstFlowReturn (*filter_ip) (GstVideoFilter2 *filter, GstBuffer *buffer,
int start, int end);
gpointer _gst_reserved[GST_PADDING_LARGE];
};
#define GST_VIDEO_FILTER2_FORMAT(vf) (((GstVideoFilter2 *)vf)->format)
#define GST_VIDEO_FILTER2_WIDTH(vf) (((GstVideoFilter2 *)vf)->width)
#define GST_VIDEO_FILTER2_HEIGHT(vf) (((GstVideoFilter2 *)vf)->height)
GType gst_video_filter2_get_type (void);
void gst_video_filter2_class_add_functions (GstVideoFilter2Class *klass,
const GstVideoFilter2Functions *functions);
G_END_DECLS
#endif

248
gst/videofilters/gstzebrastripe.c
View file

@ -47,10 +47,10 @@
#endif #endif
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h> #include <gst/video/video.h>
#include <math.h> #include <gst/video/gstvideofilter.h>
#include "gstzebrastripe.h" #include "gstzebrastripe.h"
#include <math.h>
GST_DEBUG_CATEGORY_STATIC (gst_zebra_stripe_debug_category); GST_DEBUG_CATEGORY_STATIC (gst_zebra_stripe_debug_category);
#define GST_CAT_DEFAULT gst_zebra_stripe_debug_category #define GST_CAT_DEFAULT gst_zebra_stripe_debug_category
@ -62,15 +62,16 @@ static void gst_zebra_stripe_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec); guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_zebra_stripe_get_property (GObject * object, static void gst_zebra_stripe_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec); guint property_id, GValue * value, GParamSpec * pspec);
static void gst_zebra_stripe_dispose (GObject * object);
static void gst_zebra_stripe_finalize (GObject * object); static void gst_zebra_stripe_finalize (GObject * object);
static gboolean gst_zebra_stripe_start (GstBaseTransform * trans); static gboolean gst_zebra_stripe_start (GstBaseTransform * trans);
static gboolean gst_zebra_stripe_stop (GstBaseTransform * trans); static gboolean gst_zebra_stripe_stop (GstBaseTransform * trans);
static GstFlowReturn static gboolean gst_zebra_stripe_set_info (GstVideoFilter * filter,
gst_zebra_stripe_prefilter (GstVideoFilter2 * videofilter2, GstBuffer * buf); GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info);
static GstVideoFilter2Functions gst_zebra_stripe_filter_functions[]; static GstFlowReturn gst_zebra_stripe_transform_frame_ip (GstVideoFilter *
filter, GstVideoFrame * frame);
enum enum
{ {
@ -80,68 +81,71 @@ enum
#define DEFAULT_THRESHOLD 90 #define DEFAULT_THRESHOLD 90
/* pad templates */
#define VIDEO_CAPS GST_VIDEO_CAPS_MAKE( \
"{ I420, Y444, Y42B, Y41B, YUY2, UYVY, AYUV }")
/* class initialization */ /* class initialization */
#define DEBUG_INIT(bla) \ G_DEFINE_TYPE_WITH_CODE (GstZebraStripe, gst_zebra_stripe,
GST_DEBUG_CATEGORY_INIT (gst_zebra_stripe_debug_category, "zebrastripe", 0, \ GST_TYPE_VIDEO_FILTER,
"debug category for zebrastripe element"); GST_DEBUG_CATEGORY_INIT (gst_zebra_stripe_debug_category, "zebrastripe", 0,
"debug category for zebrastripe element"));
GST_BOILERPLATE_FULL (GstZebraStripe, gst_zebra_stripe, GstVideoFilter2,
GST_TYPE_VIDEO_FILTER2, DEBUG_INIT);
static void
gst_zebra_stripe_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_static_metadata (element_class, "Zebra stripe overlay",
"Filter/Analysis",
"Overlays zebra striping on overexposed areas of video",
"David Schleef <ds@entropywave.com>");
}
static void static void
gst_zebra_stripe_class_init (GstZebraStripeClass * klass) gst_zebra_stripe_class_init (GstZebraStripeClass * klass)
{ {
GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstVideoFilter2Class *video_filter2_class = GST_VIDEO_FILTER2_CLASS (klass);
GstBaseTransformClass *base_transform_class = GstBaseTransformClass *base_transform_class =
GST_BASE_TRANSFORM_CLASS (klass); GST_BASE_TRANSFORM_CLASS (klass);
GstVideoFilterClass *video_filter_class = GST_VIDEO_FILTER_CLASS (klass);
/* Setting up pads and setting metadata should be moved to
base_class_init if you intend to subclass this class. */
gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
gst_caps_from_string (VIDEO_CAPS)));
gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
gst_caps_from_string (VIDEO_CAPS)));
gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
"Zebra stripe overlay",
"Filter/Analysis",
"Overlays zebra striping on overexposed areas of video",
"David Schleef <ds@entropywave.com>");
gobject_class->set_property = gst_zebra_stripe_set_property; gobject_class->set_property = gst_zebra_stripe_set_property;
gobject_class->get_property = gst_zebra_stripe_get_property; gobject_class->get_property = gst_zebra_stripe_get_property;
gobject_class->dispose = gst_zebra_stripe_dispose;
gobject_class->finalize = gst_zebra_stripe_finalize; gobject_class->finalize = gst_zebra_stripe_finalize;
base_transform_class->start = GST_DEBUG_FUNCPTR (gst_zebra_stripe_start); base_transform_class->start = GST_DEBUG_FUNCPTR (gst_zebra_stripe_start);
base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_zebra_stripe_stop); base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_zebra_stripe_stop);
video_filter_class->set_info = GST_DEBUG_FUNCPTR (gst_zebra_stripe_set_info);
video_filter2_class->prefilter = video_filter_class->transform_frame_ip =
GST_DEBUG_FUNCPTR (gst_zebra_stripe_prefilter); GST_DEBUG_FUNCPTR (gst_zebra_stripe_transform_frame_ip);
g_object_class_install_property (gobject_class, PROP_THRESHOLD, g_object_class_install_property (gobject_class, PROP_THRESHOLD,
g_param_spec_int ("threshold", "Threshold", g_param_spec_int ("threshold", "Threshold",
"Threshold above which the video is striped", 0, 100, "Threshold above which the video is striped", 0, 100,
DEFAULT_THRESHOLD, DEFAULT_THRESHOLD,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS)); G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
gst_video_filter2_class_add_functions (video_filter2_class,
gst_zebra_stripe_filter_functions);
} }
static void static void
gst_zebra_stripe_init (GstZebraStripe * zebrastripe, gst_zebra_stripe_init (GstZebraStripe * zebrastripe)
GstZebraStripeClass * zebrastripe_class)
{ {
} }
void void
gst_zebra_stripe_set_property (GObject * object, guint property_id, gst_zebra_stripe_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec) const GValue * value, GParamSpec * pspec)
{ {
GstZebraStripe *zebrastripe; GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (object);
g_return_if_fail (GST_IS_ZEBRA_STRIPE (object)); GST_DEBUG_OBJECT (zebrastripe, "set_property");
zebrastripe = GST_ZEBRA_STRIPE (object);
switch (property_id) { switch (property_id) {
case PROP_THRESHOLD: case PROP_THRESHOLD:
@ -159,10 +163,9 @@ void
gst_zebra_stripe_get_property (GObject * object, guint property_id, gst_zebra_stripe_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec) GValue * value, GParamSpec * pspec)
{ {
GstZebraStripe *zebrastripe; GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (object);
g_return_if_fail (GST_IS_ZEBRA_STRIPE (object)); GST_DEBUG_OBJECT (zebrastripe, "get_property");
zebrastripe = GST_ZEBRA_STRIPE (object);
switch (property_id) { switch (property_id) {
case PROP_THRESHOLD: case PROP_THRESHOLD:
@ -174,60 +177,79 @@ gst_zebra_stripe_get_property (GObject * object, guint property_id,
} }
} }
void
gst_zebra_stripe_dispose (GObject * object)
{
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (object);
GST_DEBUG_OBJECT (zebrastripe, "dispose");
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (gst_zebra_stripe_parent_class)->dispose (object);
}
void void
gst_zebra_stripe_finalize (GObject * object) gst_zebra_stripe_finalize (GObject * object)
{ {
g_return_if_fail (GST_IS_ZEBRA_STRIPE (object)); GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (object);
GST_DEBUG_OBJECT (zebrastripe, "finalize");
/* clean up object here */ /* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object); G_OBJECT_CLASS (gst_zebra_stripe_parent_class)->finalize (object);
} }
static gboolean static gboolean
gst_zebra_stripe_start (GstBaseTransform * trans) gst_zebra_stripe_start (GstBaseTransform * trans)
{ {
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (trans);
GST_DEBUG_OBJECT (zebrastripe, "start");
if (GST_BASE_TRANSFORM_CLASS (gst_zebra_stripe_parent_class)->start)
return
GST_BASE_TRANSFORM_CLASS (gst_zebra_stripe_parent_class)->start (trans);
return TRUE; return TRUE;
} }
static gboolean static gboolean
gst_zebra_stripe_stop (GstBaseTransform * trans) gst_zebra_stripe_stop (GstBaseTransform * trans)
{ {
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (trans);
GST_DEBUG_OBJECT (zebrastripe, "stop");
if (GST_BASE_TRANSFORM_CLASS (gst_zebra_stripe_parent_class)->stop)
return
GST_BASE_TRANSFORM_CLASS (gst_zebra_stripe_parent_class)->stop (trans);
return TRUE;
}
static gboolean
gst_zebra_stripe_set_info (GstVideoFilter * filter, GstCaps * incaps,
GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
{
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (filter);
GST_DEBUG_OBJECT (zebrastripe, "set_info");
return TRUE; return TRUE;
} }
static GstFlowReturn static GstFlowReturn
gst_zebra_stripe_prefilter (GstVideoFilter2 * videofilter2, GstBuffer * buf) gst_zebra_stripe_transform_frame_ip_planarY (GstZebraStripe * zebrastripe,
GstVideoFrame * frame)
{ {
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (videofilter2); int width = frame->info.width;
int height = frame->info.height;
zebrastripe->t++;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_zebra_stripe_filter_ip_planarY (GstVideoFilter2 * videofilter2,
GstBuffer * buf, int start, int end)
{
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (videofilter2);
int width = GST_VIDEO_FILTER2_WIDTH (zebrastripe);
int i, j; int i, j;
int threshold = zebrastripe->y_threshold; int threshold = zebrastripe->y_threshold;
int t = zebrastripe->t; int t = zebrastripe->t;
guint8 *ydata;
int ystride;
ydata = GST_BUFFER_DATA (buf); for (j = 0; j < height; j++) {
ystride = guint8 *data = (guint8 *) frame->data[0] + frame->info.stride[0] * j;
gst_video_format_get_row_stride (GST_VIDEO_FILTER2_FORMAT (videofilter2),
0, width);
for (j = start; j < end; j++) {
guint8 *data = ydata + ystride * j;
for (i = 0; i < width; i++) { for (i = 0; i < width; i++) {
if (data[i] >= threshold) { if (data[i] >= threshold) {
if ((i + j + t) & 0x4) if ((i + j + t) & 0x4)
@ -239,27 +261,23 @@ gst_zebra_stripe_filter_ip_planarY (GstVideoFilter2 * videofilter2,
} }
static GstFlowReturn static GstFlowReturn
gst_zebra_stripe_filter_ip_YxYy (GstVideoFilter2 * videofilter2, gst_zebra_stripe_transform_frame_ip_YUY2 (GstZebraStripe * zebrastripe,
GstBuffer * buf, int start, int end) GstVideoFrame * frame)
{ {
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (videofilter2); int width = frame->info.width;
GstVideoFormat format = GST_VIDEO_FILTER2_FORMAT (zebrastripe); int height = frame->info.height;
int width = GST_VIDEO_FILTER2_WIDTH (zebrastripe);
int i, j; int i, j;
int threshold = zebrastripe->y_threshold; int threshold = zebrastripe->y_threshold;
int t = zebrastripe->t; int t = zebrastripe->t;
guint8 *ydata; int offset = 0;
int ystride;
ydata = GST_BUFFER_DATA (buf); if (frame->info.finfo->format == GST_VIDEO_FORMAT_UYVY) {
ystride = gst_video_format_get_row_stride (format, 0, width); offset = 1;
if (format == GST_VIDEO_FORMAT_UYVY) {
ydata++;
} }
for (j = start; j < end; j++) { for (j = 0; j < height; j++) {
guint8 *data = ydata + ystride * j; guint8 *data =
(guint8 *) frame->data[0] + frame->info.stride[0] * j + offset;
for (i = 0; i < width; i++) { for (i = 0; i < width; i++) {
if (data[2 * i] >= threshold) { if (data[2 * i] >= threshold) {
if ((i + j + t) & 0x4) if ((i + j + t) & 0x4)
@ -271,29 +289,21 @@ gst_zebra_stripe_filter_ip_YxYy (GstVideoFilter2 * videofilter2,
} }
static GstFlowReturn static GstFlowReturn
gst_zebra_stripe_filter_ip_AYUV (GstVideoFilter2 * videofilter2, gst_zebra_stripe_transform_frame_ip_AYUV (GstZebraStripe * zebrastripe,
GstBuffer * buf, int start, int end) GstVideoFrame * frame)
{ {
GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (videofilter2); int width = frame->info.width;
int width = GST_VIDEO_FILTER2_WIDTH (zebrastripe); int height = frame->info.height;
int i, j; int i, j;
int threshold = zebrastripe->y_threshold; int threshold = zebrastripe->y_threshold;
int t = zebrastripe->t; int t = zebrastripe->t;
guint8 *ydata;
int ystride;
ydata = GST_BUFFER_DATA (buf); for (j = 0; j < height; j++) {
ystride = guint8 *data = (guint8 *) frame->data[0] + frame->info.stride[0] * j;
gst_video_format_get_row_stride (GST_VIDEO_FILTER2_FORMAT (videofilter2),
0, width);
ydata++;
for (j = start; j < end; j++) {
guint8 *data = ydata + ystride * j;
for (i = 0; i < width; i++) { for (i = 0; i < width; i++) {
if (data[4 * i] >= threshold) { if (data[4 * i + 1] >= threshold) {
if ((i + j + t) & 0x4) if ((i + j + t) & 0x4)
data[4 * i] = 16; data[4 * i + 1] = 16;
} }
} }
} }
@ -301,19 +311,33 @@ gst_zebra_stripe_filter_ip_AYUV (GstVideoFilter2 * videofilter2,
return GST_FLOW_OK; return GST_FLOW_OK;
} }
static GstVideoFilter2Functions gst_zebra_stripe_filter_functions[] = { static GstFlowReturn
{GST_VIDEO_FORMAT_I420, NULL, gst_zebra_stripe_filter_ip_planarY}, gst_zebra_stripe_transform_frame_ip (GstVideoFilter * filter,
{GST_VIDEO_FORMAT_YV12, NULL, gst_zebra_stripe_filter_ip_planarY}, GstVideoFrame * frame)
{GST_VIDEO_FORMAT_Y41B, NULL, gst_zebra_stripe_filter_ip_planarY}, {
{GST_VIDEO_FORMAT_Y42B, NULL, gst_zebra_stripe_filter_ip_planarY}, GstZebraStripe *zebrastripe = GST_ZEBRA_STRIPE (filter);
{GST_VIDEO_FORMAT_NV12, NULL, gst_zebra_stripe_filter_ip_planarY},
{GST_VIDEO_FORMAT_NV21, NULL, gst_zebra_stripe_filter_ip_planarY}, GST_DEBUG_OBJECT (zebrastripe, "transform_frame_ip");
{GST_VIDEO_FORMAT_YUV9, NULL, gst_zebra_stripe_filter_ip_planarY}, zebrastripe->t++;
{GST_VIDEO_FORMAT_YVU9, NULL, gst_zebra_stripe_filter_ip_planarY},
{GST_VIDEO_FORMAT_Y444, NULL, gst_zebra_stripe_filter_ip_planarY}, switch (frame->info.finfo->format) {
{GST_VIDEO_FORMAT_UYVY, NULL, gst_zebra_stripe_filter_ip_YxYy}, case GST_VIDEO_FORMAT_I420:
{GST_VIDEO_FORMAT_YUY2, NULL, gst_zebra_stripe_filter_ip_YxYy}, case GST_VIDEO_FORMAT_Y41B:
{GST_VIDEO_FORMAT_YVYU, NULL, gst_zebra_stripe_filter_ip_YxYy}, case GST_VIDEO_FORMAT_Y444:
{GST_VIDEO_FORMAT_AYUV, NULL, gst_zebra_stripe_filter_ip_AYUV}, case GST_VIDEO_FORMAT_Y42B:
{GST_VIDEO_FORMAT_UNKNOWN} gst_zebra_stripe_transform_frame_ip_planarY (zebrastripe, frame);
}; break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
gst_zebra_stripe_transform_frame_ip_YUY2 (zebrastripe, frame);
break;
case GST_VIDEO_FORMAT_AYUV:
gst_zebra_stripe_transform_frame_ip_AYUV (zebrastripe, frame);
break;
default:
g_assert_not_reached ();
}
return GST_FLOW_OK;
}

7
gst/videofilters/gstzebrastripe.h
View file

@ -20,8 +20,8 @@
#ifndef _GST_ZEBRA_STRIPE_H_ #ifndef _GST_ZEBRA_STRIPE_H_
#define _GST_ZEBRA_STRIPE_H_ #define _GST_ZEBRA_STRIPE_H_
#include "gstvideofilter2.h"
#include <gst/video/video.h> #include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS G_BEGIN_DECLS
@ -36,7 +36,7 @@ typedef struct _GstZebraStripeClass GstZebraStripeClass;
struct _GstZebraStripe struct _GstZebraStripe
{ {
GstVideoFilter2 video_filter2; GstVideoFilter base_zebrastripe;
/* properties */ /* properties */
int threshold; int threshold;
@ -44,12 +44,11 @@ struct _GstZebraStripe
/* state */ /* state */
int t; int t;
int y_threshold; int y_threshold;
}; };
struct _GstZebraStripeClass struct _GstZebraStripeClass
{ {
GstVideoFilter2Class video_filter2_class; GstVideoFilterClass base_zebrastripe_class;
}; };
GType gst_zebra_stripe_get_type (void); GType gst_zebra_stripe_get_type (void);