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/*
* Copyright (C) 2009-2010 Felipe Contreras
*
* Author: Felipe Contreras <felipe.contreras@gmail.com>
*
* This file may be used under the terms of the GNU Lesser General Public
* License version 2.1, a copy of which is found in LICENSE included in the
* packaging of this file.
*/

#include "gstdspjpegenc.h"
#include "plugin.h"

#include "util.h"
#include "dsp_bridge.h"

#include "log.h"

#define GST_CAT_DEFAULT gstdsp_debug

#define DEFAULT_ENCODING_QUALITY 90

enum {
ARG_0,
ARG_QUALITY,
};

static void
set_property(GObject *obj,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GstDspVEnc *self = GST_DSP_VENC(obj);

switch (prop_id) {
case ARG_QUALITY: {
if (GST_STATE(self) == GST_STATE_NULL) {
guint quality;
quality = g_value_get_uint(value);
g_atomic_int_set(&self->quality, quality);
} else {
GST_WARNING_OBJECT(self,
"encoding quality property can be set only in NULL state");
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, prop_id, pspec);
break;
}
}

static void
get_property(GObject *obj,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GstDspVEnc *self = GST_DSP_VENC(obj);

switch (prop_id) {
case ARG_QUALITY:
g_value_set_uint(value, g_atomic_int_get(&self->quality));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, prop_id, pspec);
break;
}
}

static inline GstCaps *
generate_src_template(void)
{
GstCaps *caps;
GstStructure *struc;

caps = gst_caps_new_empty();

struc = gst_structure_new("image/jpeg",
NULL);

gst_caps_append_structure(caps, struc);

return caps;
}

static void
instance_init(GTypeInstance *instance,
gpointer g_class)
{
GstDspBase *base = GST_DSP_BASE(instance);
GstDspVEnc *self = GST_DSP_VENC(instance);

base->alg = GSTDSP_JPEGENC;
base->codec = &td_jpegenc_codec;
base->eos_timeout = 0;
base->use_pinned = true;

self->quality = DEFAULT_ENCODING_QUALITY;
}

static void
base_init(gpointer g_class)
{
GstElementClass *element_class;
GstPadTemplate *template;
GstCaps *caps;

element_class = GST_ELEMENT_CLASS(g_class);

gst_element_class_set_details_simple(element_class,
"DSP video encoder",
"Codec/Encoder/Image",
"Encodes JPEG images with TI's DSP algorithms",
"Felipe Contreras");

template = gst_pad_template_new("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
generate_src_template());

gst_element_class_add_pad_template(element_class, template);
gst_object_unref(template);

/* publicly announce specific w/h restrictions */
template = gst_element_class_get_pad_template(element_class, "sink");
caps = gst_pad_template_get_caps(template);
gst_caps_set_simple(caps,
"width", GST_TYPE_INT_RANGE, 16, JPEGENC_MAX_WIDTH,
"height", GST_TYPE_INT_RANGE, 16, JPEGENC_MAX_HEIGHT,
NULL);
}

static void
class_init(gpointer g_class,
gpointer class_data)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) g_class;

gobject_class->set_property = set_property;
gobject_class->get_property = get_property;

g_object_class_install_property(gobject_class, ARG_QUALITY,
g_param_spec_uint("encoding-quality", "Encoding quality",
"Encoding quality level", 1, 100, DEFAULT_ENCODING_QUALITY,
G_PARAM_READWRITE));
}

GType
gst_dsp_jpegenc_get_type(void)
{
static GType type;

if (G_UNLIKELY(type == 0)) {
GTypeInfo type_info = {
.class_size = sizeof(GstDspJpegEncClass),
.base_init = base_init,
.class_init = class_init,
.instance_size = sizeof(GstDspJpegEnc),
.instance_init = instance_init,
};

type = g_type_register_static(GST_DSP_VENC_TYPE, "GstDspJpegEnc", &type_info, 0);
}

return type;
}
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