mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
6c3ff34ee0
Original commit message from CVS: forward port from 0.9 and enable videoflip now that it works
555 lines
16 KiB
C
555 lines
16 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
* Copyright (C) <2003> 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
/*#define DEBUG_ENABLED */
|
|
#include "gstvideofilter.h"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_videofilter_debug);
|
|
#define GST_CAT_DEFAULT gst_videofilter_debug
|
|
|
|
/* GstVideofilter signals and args */
|
|
enum
|
|
{
|
|
/* FILL ME */
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
enum
|
|
{
|
|
ARG_0,
|
|
ARG_METHOD
|
|
/* FILL ME */
|
|
};
|
|
|
|
static void gst_videofilter_base_init (gpointer g_class);
|
|
static void gst_videofilter_class_init (gpointer g_class, gpointer class_data);
|
|
static void gst_videofilter_init (GTypeInstance * instance, gpointer g_class);
|
|
|
|
static void gst_videofilter_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec);
|
|
static void gst_videofilter_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec);
|
|
|
|
static GstFlowReturn gst_videofilter_chain (GstPad * pad, GstBuffer * buffer);
|
|
GstCaps *gst_videofilter_class_get_capslist (GstVideofilterClass * klass);
|
|
|
|
static GstElementClass *parent_class = NULL;
|
|
|
|
GType
|
|
gst_videofilter_get_type (void)
|
|
{
|
|
static GType videofilter_type = 0;
|
|
|
|
if (!videofilter_type) {
|
|
static const GTypeInfo videofilter_info = {
|
|
sizeof (GstVideofilterClass),
|
|
gst_videofilter_base_init,
|
|
NULL,
|
|
gst_videofilter_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstVideofilter),
|
|
0,
|
|
gst_videofilter_init,
|
|
};
|
|
|
|
videofilter_type = g_type_register_static (GST_TYPE_ELEMENT,
|
|
"GstVideofilter", &videofilter_info, G_TYPE_FLAG_ABSTRACT);
|
|
}
|
|
return videofilter_type;
|
|
}
|
|
|
|
static void
|
|
gst_videofilter_base_init (gpointer g_class)
|
|
{
|
|
static GstElementDetails videofilter_details = {
|
|
"Video scaler",
|
|
"Filter/Effect/Video",
|
|
"Resizes video",
|
|
"David Schleef <ds@schleef.org>"
|
|
};
|
|
GstVideofilterClass *klass = (GstVideofilterClass *) g_class;
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
|
|
|
klass->formats = g_ptr_array_new ();
|
|
|
|
gst_element_class_set_details (element_class, &videofilter_details);
|
|
}
|
|
|
|
static void
|
|
gst_videofilter_class_init (gpointer g_class, gpointer class_data)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
GstVideofilterClass *klass;
|
|
|
|
klass = (GstVideofilterClass *) g_class;
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) klass;
|
|
|
|
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
|
|
|
|
gobject_class->set_property = gst_videofilter_set_property;
|
|
gobject_class->get_property = gst_videofilter_get_property;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_videofilter_debug, "videofilter", 0,
|
|
"videofilter");
|
|
}
|
|
|
|
static GstStructure *
|
|
gst_videofilter_format_get_structure (GstVideofilterFormat * format)
|
|
{
|
|
unsigned int fourcc;
|
|
GstStructure *structure;
|
|
|
|
if (format->filter_func == NULL)
|
|
return NULL;
|
|
|
|
fourcc =
|
|
GST_MAKE_FOURCC (format->fourcc[0], format->fourcc[1], format->fourcc[2],
|
|
format->fourcc[3]);
|
|
|
|
if (format->depth) {
|
|
structure = gst_structure_new ("video/x-raw-rgb",
|
|
"depth", G_TYPE_INT, format->depth,
|
|
"bpp", G_TYPE_INT, format->bpp,
|
|
"endianness", G_TYPE_INT, format->endianness,
|
|
"red_mask", G_TYPE_INT, format->red_mask,
|
|
"green_mask", G_TYPE_INT, format->green_mask,
|
|
"blue_mask", G_TYPE_INT, format->blue_mask, NULL);
|
|
} else {
|
|
structure = gst_structure_new ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, fourcc, NULL);
|
|
}
|
|
|
|
gst_structure_set (structure,
|
|
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
|
|
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
|
|
"framerate", GST_TYPE_DOUBLE_RANGE, 0.0, G_MAXDOUBLE, NULL);
|
|
|
|
return structure;
|
|
}
|
|
|
|
GstCaps *
|
|
gst_videofilter_class_get_capslist (GstVideofilterClass * klass)
|
|
{
|
|
GstCaps *caps;
|
|
GstStructure *structure;
|
|
int i;
|
|
|
|
caps = gst_caps_new_empty ();
|
|
for (i = 0; i < klass->formats->len; i++) {
|
|
structure =
|
|
gst_videofilter_format_get_structure (g_ptr_array_index (klass->formats,
|
|
i));
|
|
gst_caps_append_structure (caps, structure);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_videofilter_getcaps (GstPad * pad)
|
|
{
|
|
GstVideofilter *videofilter;
|
|
GstVideofilterClass *klass;
|
|
GstCaps *caps;
|
|
GstPad *peer;
|
|
int i;
|
|
|
|
videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad));
|
|
GST_DEBUG_OBJECT (videofilter, "gst_videofilter_getcaps");
|
|
|
|
klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter));
|
|
|
|
/* we can handle anything that was registered */
|
|
caps = gst_caps_new_empty ();
|
|
for (i = 0; i < klass->formats->len; i++) {
|
|
GstCaps *fromcaps;
|
|
|
|
fromcaps =
|
|
gst_caps_new_full (gst_videofilter_format_get_structure
|
|
(g_ptr_array_index (klass->formats, i)), NULL);
|
|
|
|
gst_caps_append (caps, fromcaps);
|
|
}
|
|
|
|
peer = gst_pad_get_peer (pad);
|
|
if (peer) {
|
|
GstCaps *peercaps;
|
|
|
|
peercaps = gst_pad_get_caps (peer);
|
|
if (peercaps) {
|
|
GstCaps *icaps;
|
|
|
|
icaps = gst_caps_intersect (peercaps, caps);
|
|
gst_caps_unref (peercaps);
|
|
gst_caps_unref (caps);
|
|
caps = icaps;
|
|
}
|
|
//gst_object_unref (peer);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static gboolean
|
|
gst_videofilter_setcaps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstVideofilter *videofilter;
|
|
GstStructure *structure;
|
|
int width, height;
|
|
double framerate;
|
|
int ret;
|
|
|
|
videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad));
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
videofilter->format =
|
|
gst_videofilter_find_format_by_structure (videofilter, structure);
|
|
g_return_val_if_fail (videofilter->format, GST_PAD_LINK_REFUSED);
|
|
|
|
ret = gst_structure_get_int (structure, "width", &width);
|
|
ret &= gst_structure_get_int (structure, "height", &height);
|
|
ret &= gst_structure_get_double (structure, "framerate", &framerate);
|
|
|
|
if (!ret)
|
|
return FALSE;
|
|
|
|
gst_pad_set_caps (videofilter->srcpad, caps);
|
|
|
|
GST_DEBUG_OBJECT (videofilter, "width %d height %d", width, height);
|
|
|
|
#if 0
|
|
if (pad == videofilter->srcpad) {
|
|
videofilter->to_width = width;
|
|
videofilter->to_height = height;
|
|
} else {
|
|
videofilter->from_width = width;
|
|
videofilter->from_height = height;
|
|
}
|
|
#endif
|
|
videofilter->to_width = width;
|
|
videofilter->to_height = height;
|
|
videofilter->from_width = width;
|
|
videofilter->from_height = height;
|
|
videofilter->framerate = framerate;
|
|
|
|
gst_videofilter_setup (videofilter);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_videofilter_init (GTypeInstance * instance, gpointer g_class)
|
|
{
|
|
GstVideofilter *videofilter = GST_VIDEOFILTER (instance);
|
|
GstPadTemplate *pad_template;
|
|
|
|
GST_DEBUG_OBJECT (videofilter, "gst_videofilter_init");
|
|
|
|
pad_template =
|
|
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "sink");
|
|
g_return_if_fail (pad_template != NULL);
|
|
videofilter->sinkpad = gst_pad_new_from_template (pad_template, "sink");
|
|
gst_element_add_pad (GST_ELEMENT (videofilter), videofilter->sinkpad);
|
|
gst_pad_set_chain_function (videofilter->sinkpad, gst_videofilter_chain);
|
|
gst_pad_set_setcaps_function (videofilter->sinkpad, gst_videofilter_setcaps);
|
|
gst_pad_set_getcaps_function (videofilter->sinkpad, gst_videofilter_getcaps);
|
|
|
|
pad_template =
|
|
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src");
|
|
g_return_if_fail (pad_template != NULL);
|
|
videofilter->srcpad = gst_pad_new_from_template (pad_template, "src");
|
|
gst_element_add_pad (GST_ELEMENT (videofilter), videofilter->srcpad);
|
|
gst_pad_set_getcaps_function (videofilter->srcpad, gst_videofilter_getcaps);
|
|
|
|
videofilter->inited = FALSE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_videofilter_chain (GstPad * pad, GstBuffer * buf)
|
|
{
|
|
GstVideofilter *videofilter;
|
|
guchar *data;
|
|
gulong size;
|
|
GstBuffer *outbuf;
|
|
GstFlowReturn ret;
|
|
|
|
videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad));
|
|
GST_DEBUG_OBJECT (videofilter, "gst_videofilter_chain");
|
|
|
|
if (videofilter->passthru) {
|
|
return gst_pad_push (videofilter->srcpad, buf);
|
|
}
|
|
|
|
if (GST_PAD_CAPS (pad) == NULL) {
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
data = GST_BUFFER_DATA (buf);
|
|
size = GST_BUFFER_SIZE (buf);
|
|
|
|
GST_LOG_OBJECT (videofilter, "got buffer of %ld bytes in '%s'", size,
|
|
GST_OBJECT_NAME (videofilter));
|
|
|
|
GST_LOG_OBJECT (videofilter,
|
|
"size=%ld from=%dx%d to=%dx%d fromsize=%ld (should be %d) tosize=%d",
|
|
size, videofilter->from_width, videofilter->from_height,
|
|
videofilter->to_width, videofilter->to_height, size,
|
|
videofilter->from_buf_size, videofilter->to_buf_size);
|
|
|
|
|
|
if (size > videofilter->from_buf_size) {
|
|
GST_INFO_OBJECT (videofilter, "buffer size %ld larger than expected (%d)",
|
|
size, videofilter->from_buf_size);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
ret = gst_pad_alloc_buffer (videofilter->srcpad, GST_BUFFER_OFFSET_NONE,
|
|
videofilter->to_buf_size, GST_PAD_CAPS (videofilter->srcpad), &outbuf);
|
|
if (ret != GST_FLOW_OK)
|
|
goto no_buffer;
|
|
|
|
g_return_val_if_fail (GST_BUFFER_DATA (outbuf), GST_FLOW_ERROR);
|
|
|
|
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
|
|
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
|
|
|
|
g_return_val_if_fail (videofilter->format, GST_FLOW_ERROR);
|
|
GST_DEBUG_OBJECT (videofilter, "format %s", videofilter->format->fourcc);
|
|
|
|
videofilter->in_buf = buf;
|
|
videofilter->out_buf = outbuf;
|
|
|
|
videofilter->format->filter_func (videofilter, GST_BUFFER_DATA (outbuf),
|
|
data);
|
|
gst_buffer_unref (buf);
|
|
|
|
GST_LOG_OBJECT (videofilter, "pushing buffer of %d bytes in '%s'",
|
|
GST_BUFFER_SIZE (outbuf), GST_OBJECT_NAME (videofilter));
|
|
|
|
ret = gst_pad_push (videofilter->srcpad, outbuf);
|
|
|
|
return ret;
|
|
|
|
no_buffer:
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videofilter_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstVideofilter *videofilter;
|
|
|
|
g_return_if_fail (GST_IS_VIDEOFILTER (object));
|
|
videofilter = GST_VIDEOFILTER (object);
|
|
|
|
GST_DEBUG_OBJECT (videofilter, "gst_videofilter_set_property");
|
|
switch (prop_id) {
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videofilter_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstVideofilter *videofilter;
|
|
|
|
g_return_if_fail (GST_IS_VIDEOFILTER (object));
|
|
videofilter = GST_VIDEOFILTER (object);
|
|
|
|
switch (prop_id) {
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
int
|
|
gst_videofilter_get_input_width (GstVideofilter * videofilter)
|
|
{
|
|
g_return_val_if_fail (GST_IS_VIDEOFILTER (videofilter), 0);
|
|
|
|
return videofilter->from_width;
|
|
}
|
|
|
|
int
|
|
gst_videofilter_get_input_height (GstVideofilter * videofilter)
|
|
{
|
|
g_return_val_if_fail (GST_IS_VIDEOFILTER (videofilter), 0);
|
|
|
|
return videofilter->from_height;
|
|
}
|
|
|
|
void
|
|
gst_videofilter_set_output_size (GstVideofilter * videofilter,
|
|
int width, int height)
|
|
{
|
|
GstCaps *srccaps;
|
|
GstStructure *structure;
|
|
|
|
g_return_if_fail (GST_IS_VIDEOFILTER (videofilter));
|
|
|
|
videofilter->to_width = width;
|
|
videofilter->to_height = height;
|
|
|
|
videofilter->to_buf_size = (videofilter->to_width * videofilter->to_height
|
|
* videofilter->format->bpp) / 8;
|
|
|
|
//srccaps = gst_caps_copy (gst_pad_get_negotiated_caps (videofilter->srcpad));
|
|
srccaps = gst_caps_copy (GST_PAD_CAPS (videofilter->srcpad));
|
|
structure = gst_caps_get_structure (srccaps, 0);
|
|
|
|
gst_structure_set (structure, "width", G_TYPE_INT, width,
|
|
"height", G_TYPE_INT, height, NULL);
|
|
|
|
gst_pad_set_caps (videofilter->srcpad, srccaps);
|
|
}
|
|
|
|
void
|
|
gst_videofilter_setup (GstVideofilter * videofilter)
|
|
{
|
|
GstVideofilterClass *klass;
|
|
|
|
GST_DEBUG_OBJECT (videofilter, "setup");
|
|
|
|
klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter));
|
|
|
|
if (klass->setup) {
|
|
GST_DEBUG_OBJECT (videofilter, "calling class setup method");
|
|
klass->setup (videofilter);
|
|
}
|
|
|
|
if (videofilter->to_width == 0) {
|
|
videofilter->to_width = videofilter->from_width;
|
|
}
|
|
if (videofilter->to_height == 0) {
|
|
videofilter->to_height = videofilter->from_height;
|
|
}
|
|
|
|
g_return_if_fail (videofilter->format != NULL);
|
|
g_return_if_fail (videofilter->from_width > 0);
|
|
g_return_if_fail (videofilter->from_height > 0);
|
|
g_return_if_fail (videofilter->to_width > 0);
|
|
g_return_if_fail (videofilter->to_height > 0);
|
|
|
|
videofilter->from_buf_size =
|
|
(videofilter->from_width * videofilter->from_height *
|
|
videofilter->format->bpp) / 8;
|
|
videofilter->to_buf_size =
|
|
(videofilter->to_width * videofilter->to_height *
|
|
videofilter->format->bpp) / 8;
|
|
|
|
GST_DEBUG_OBJECT (videofilter, "from_buf_size %d to_buf_size %d",
|
|
videofilter->from_buf_size, videofilter->to_buf_size);
|
|
videofilter->inited = TRUE;
|
|
}
|
|
|
|
GstVideofilterFormat *
|
|
gst_videofilter_find_format_by_structure (GstVideofilter * videofilter,
|
|
const GstStructure * structure)
|
|
{
|
|
int i;
|
|
GstVideofilterClass *klass;
|
|
GstVideofilterFormat *format;
|
|
gboolean ret;
|
|
|
|
klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter));
|
|
|
|
g_return_val_if_fail (structure != NULL, NULL);
|
|
|
|
if (strcmp (gst_structure_get_name (structure), "video/x-raw-yuv") == 0) {
|
|
guint32 fourcc;
|
|
|
|
ret = gst_structure_get_fourcc (structure, "format", &fourcc);
|
|
if (!ret)
|
|
return NULL;
|
|
for (i = 0; i < klass->formats->len; i++) {
|
|
guint32 format_fourcc;
|
|
|
|
format = g_ptr_array_index (klass->formats, i);
|
|
format_fourcc = GST_STR_FOURCC (format->fourcc);
|
|
if (format->depth == 0 && format_fourcc == fourcc) {
|
|
return format;
|
|
}
|
|
}
|
|
} else if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb")
|
|
== 0) {
|
|
int bpp;
|
|
int depth;
|
|
int endianness;
|
|
int red_mask;
|
|
int green_mask;
|
|
int blue_mask;
|
|
|
|
ret = gst_structure_get_int (structure, "bpp", &bpp);
|
|
ret &= gst_structure_get_int (structure, "depth", &depth);
|
|
ret &= gst_structure_get_int (structure, "endianness", &endianness);
|
|
ret &= gst_structure_get_int (structure, "red_mask", &red_mask);
|
|
ret &= gst_structure_get_int (structure, "green_mask", &green_mask);
|
|
ret &= gst_structure_get_int (structure, "blue_mask", &blue_mask);
|
|
if (!ret)
|
|
return NULL;
|
|
for (i = 0; i < klass->formats->len; i++) {
|
|
format = g_ptr_array_index (klass->formats, i);
|
|
if (format->bpp == bpp && format->depth == depth &&
|
|
format->endianness == endianness && format->red_mask == red_mask &&
|
|
format->green_mask == green_mask && format->blue_mask == blue_mask) {
|
|
return format;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gst_videofilter_class_add_format (GstVideofilterClass * videofilterclass,
|
|
GstVideofilterFormat * format)
|
|
{
|
|
g_ptr_array_add (videofilterclass->formats, format);
|
|
}
|
|
|
|
void
|
|
gst_videofilter_class_add_pad_templates (GstVideofilterClass *
|
|
videofilter_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (videofilter_class);
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
|
|
gst_videofilter_class_get_capslist (videofilter_class)));
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
|
|
gst_videofilter_class_get_capslist (videofilter_class)));
|
|
}
|