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Remove dead snapshot plugin

Browse source 
Was never ported and doesn't look like
we want it or need it in this form, can
do the same with the libgstvideo sample
conversion utility API now, but better
and in a more flexible way.
This commit is contained in:
Tim-Philipp Müller 2016-02-01 01:01:10 +00:00
parent 1d4f136ac9
commit 8d9ab6cfc2
3 changed files with 0 additions and 426 deletions
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11
ext/snapshot/Makefile.am
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@ -1,11 +0,0 @@
plugin_LTLIBRARIES = libgstsnapshot.la
libgstsnapshot_la_SOURCES = \
gstsnapshot.c
libgstsnapshot_la_CFLAGS = $(GST_CFLAGS)
libgstsnapshot_la_LIBADD = $(GST_LIBS) $(LIBPNG_LIBS)
libgstsnapshot_la_LDFLAGS = @GST_PLUGIN_LDFLAGS@
libgstsnapshot_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
noinst_HEADERS = gstsnapshot.h

339
ext/snapshot/gstsnapshot.c
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@ -1,339 +0,0 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <inttypes.h>
#include "gstsnapshot.h"
#include <gst/video/video.h>
#define MAX_HEIGHT 2048
static GstStaticPadTemplate snapshot_src_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
);
static GstStaticPadTemplate snapshot_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
);
/* Snapshot signals and args */
enum
{
/* FILL ME */
SNAPSHOT_SIGNAL,
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_FRAME,
ARG_LOCATION
};
static GType gst_snapshot_get_type (void);
static void gst_snapshot_base_init (gpointer g_class);
static void gst_snapshot_class_init (GstSnapshotClass * klass);
static void gst_snapshot_init (GstSnapshot * snapshot);
static void gst_snapshot_chain (GstPad * pad, GstData * _data);
static void gst_snapshot_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_snapshot_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void snapshot_handler (GstElement * element);
static GstElementClass *parent_class = NULL;
static guint gst_snapshot_signals[LAST_SIGNAL] = { 0 };
static void
user_error_fn (png_structp png_ptr, png_const_charp error_msg)
{
g_warning ("%s", error_msg);
}
static void
user_warning_fn (png_structp png_ptr, png_const_charp warning_msg)
{
g_warning ("%s", warning_msg);
}
GType
gst_snapshot_get_type (void)
{
static GType snapshot_type = 0;
if (!snapshot_type) {
static const GTypeInfo snapshot_info = {
sizeof (GstSnapshotClass),
gst_snapshot_base_init,
NULL,
(GClassInitFunc) gst_snapshot_class_init,
NULL,
NULL,
sizeof (GstSnapshot),
0,
(GInstanceInitFunc) gst_snapshot_init,
};
snapshot_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstSnapshot", &snapshot_info,
0);
}
return snapshot_type;
}
static void
gst_snapshot_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&snapshot_sink_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&snapshot_src_factory));
gst_element_class_set_static_metadata (element_class, "Snapshot",
"Filter/Editor/Video",
"Dump a frame to a png file", "Jeremy SIMON <jsimon13@yahoo.fr>");
}
static void
gst_snapshot_class_init (GstSnapshotClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_peek_parent (klass);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAME,
g_param_spec_long ("frame", "frame", "frame",
0, G_MAXLONG, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOCATION,
g_param_spec_string ("location", "location", "location",
0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_snapshot_signals[SNAPSHOT_SIGNAL] =
g_signal_new ("snapshot", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstSnapshotClass, snapshot),
NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
klass->snapshot = snapshot_handler;
gobject_class->set_property = gst_snapshot_set_property;
gobject_class->get_property = gst_snapshot_get_property;
}
static void
snapshot_handler (GstElement * element)
{
GstSnapshot *snapshot;
snapshot = GST_SNAPSHOT (element);
snapshot->snapshot_asked = TRUE;
}
static gboolean
gst_snapshot_sinkconnect (GstPad * pad, const GstCaps * caps)
{
GstSnapshot *filter;
gdouble fps;
GstStructure *structure;
filter = GST_SNAPSHOT (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &filter->width);
gst_structure_get_int (structure, "height", &filter->height);
gst_structure_get_double (structure, "framerate", &fps);
gst_structure_get_fourcc (structure, "format", &filter->format);
filter->to_bpp = 24;
gst_pad_try_set_caps (filter->srcpad, caps);
return GST_PAD_LINK_OK;
}
static void
gst_snapshot_init (GstSnapshot * snapshot)
{
snapshot->sinkpad =
gst_pad_new_from_static_template (&snapshot_sink_factory, "sink");
gst_pad_set_link_function (snapshot->sinkpad, gst_snapshot_sinkconnect);
gst_pad_set_chain_function (snapshot->sinkpad, gst_snapshot_chain);
gst_element_add_pad (GST_ELEMENT (snapshot), snapshot->sinkpad);
snapshot->srcpad =
gst_pad_new_from_static_template (&snapshot_src_factory, "src");
gst_element_add_pad (GST_ELEMENT (snapshot), snapshot->srcpad);
snapshot->cur_frame = 0;
snapshot->frame = -1;
snapshot->snapshot_asked = FALSE;
}
static void
gst_snapshot_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSnapshot *snapshot;
guchar *data;
gulong size;
gint i;
png_byte *row_pointers[MAX_HEIGHT];
FILE *fp;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
snapshot = GST_SNAPSHOT (GST_OBJECT_PARENT (pad));
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
GST_DEBUG ("snapshot: have buffer of %d\n", GST_BUFFER_SIZE (buf));
snapshot->cur_frame++;
if (snapshot->cur_frame == snapshot->frame ||
snapshot->snapshot_asked == TRUE) {
snapshot->snapshot_asked = FALSE;
GST_INFO ("dumpfile : %s\n", snapshot->location);
fp = fopen (snapshot->location, "wb");
if (fp == NULL)
g_warning (" Can not open %s\n", snapshot->location);
else {
snapshot->png_struct_ptr =
png_create_write_struct (PNG_LIBPNG_VER_STRING, (png_voidp) NULL,
user_error_fn, user_warning_fn);
if (snapshot->png_struct_ptr == NULL)
g_warning ("Failed to initialize png structure");
snapshot->png_info_ptr =
png_create_info_struct (snapshot->png_struct_ptr);
if (setjmp (snapshot->png_struct_ptr->jmpbuf))
png_destroy_write_struct (&snapshot->png_struct_ptr,
&snapshot->png_info_ptr);
png_set_filter (snapshot->png_struct_ptr, 0,
PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE);
png_init_io (snapshot->png_struct_ptr, fp);
png_set_compression_level (snapshot->png_struct_ptr, 9);
png_set_IHDR (snapshot->png_struct_ptr,
snapshot->png_info_ptr,
snapshot->width,
snapshot->height,
snapshot->to_bpp / 3,
PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
for (i = 0; i < snapshot->height; i++)
row_pointers[i] = data + (snapshot->width * i * snapshot->to_bpp / 8);
png_write_info (snapshot->png_struct_ptr, snapshot->png_info_ptr);
png_write_image (snapshot->png_struct_ptr, row_pointers);
png_write_end (snapshot->png_struct_ptr, NULL);
png_destroy_info_struct (snapshot->png_struct_ptr,
&snapshot->png_info_ptr);
png_destroy_write_struct (&snapshot->png_struct_ptr, (png_infopp) NULL);
fclose (fp);
}
}
gst_pad_push (snapshot->srcpad, GST_DATA (buf));
}
static void
gst_snapshot_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSnapshot *snapshot;
g_return_if_fail (GST_IS_SNAPSHOT (object));
snapshot = GST_SNAPSHOT (object);
switch (prop_id) {
case ARG_LOCATION:
snapshot->location = g_strdup (g_value_get_string (value));
break;
case ARG_FRAME:
snapshot->frame = g_value_get_long (value);
break;
default:
break;
}
}
static void
gst_snapshot_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstSnapshot *snapshot;
g_return_if_fail (GST_IS_SNAPSHOT (object));
snapshot = GST_SNAPSHOT (object);
switch (prop_id) {
case ARG_LOCATION:
g_value_set_string (value, snapshot->location);
break;
case ARG_FRAME:
g_value_set_long (value, snapshot->frame);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "snapshot", GST_RANK_NONE,
GST_TYPE_SNAPSHOT))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
snapshot,
"Dump a frame to a png file",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

76
ext/snapshot/gstsnapshot.h
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@ -1,76 +0,0 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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_SNAPSHOT_H__
#define __GST_SNAPSHOT_H__
#include <gst/gst.h>
#include <png.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_SNAPSHOT \
(gst_snapshot_get_type())
#define GST_SNAPSHOT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SNAPSHOT,GstSnapshot))
#define GST_SNAPSHOT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SNAPSHOT,GstSnapshotClass))
#define GST_IS_SNAPSHOT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SNAPSHOT))
#define GST_IS_SNAPSHOT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SNAPSHOT))
typedef struct _GstSnapshot GstSnapshot;
typedef struct _GstSnapshotClass GstSnapshotClass;
struct _GstSnapshot {
GstElement element;
guint32 format;
gint width;
gint height;
gint to_bpp;
glong frame;
glong cur_frame;
const gchar *location;
gboolean snapshot_asked;
png_structp png_struct_ptr;
png_infop png_info_ptr;
GstPad *sinkpad,*srcpad;
};
struct _GstSnapshotClass {
GstElementClass parent_class;
void (*snapshot) (GstElement *elem);
};
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_SNAPSHOT_H__ */