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openjpeg: Add JPEG2000 encoder element

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This commit is contained in:
Sebastian Dröge 2012-12-14 20:08:27 +00:00
parent e1416c11a4
commit e9fc332e25
3 changed files with 699 additions and 4 deletions
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6
ext/openjpeg/gstopenjpeg.c
View file

@ -30,14 +30,12 @@
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "openjpegdec", GST_RANK_MARGINAL,
if (!gst_element_register (plugin, "openjpegdec", GST_RANK_PRIMARY,
GST_TYPE_OPENJPEG_DEC))
return FALSE;
#if 0
if (!gst_element_register (plugin, "openjpegenc", GST_RANK_MARGINAL,
if (!gst_element_register (plugin, "openjpegenc", GST_RANK_PRIMARY,
GST_TYPE_OPENJPEG_ENC))
return FALSE;
#endif
return TRUE;
}

626
ext/openjpeg/gstopenjpegenc.c
View file

@ -0,0 +1,626 @@
/*
* Copyright (C) 2012 Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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 "gstopenjpegenc.h"
GST_DEBUG_CATEGORY_STATIC (gst_openjpeg_enc_debug);
#define GST_CAT_DEFAULT gst_openjpeg_enc_debug
enum
{
PROP_0,
};
static void gst_openjpeg_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_openjpeg_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_openjpeg_enc_start (GstVideoEncoder * encoder);
static gboolean gst_openjpeg_enc_stop (GstVideoEncoder * encoder);
static gboolean gst_openjpeg_enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state);
static gboolean gst_openjpeg_enc_reset (GstVideoEncoder * encoder,
gboolean hard);
static GstFlowReturn gst_openjpeg_enc_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame);
static gboolean gst_openjpeg_enc_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define GRAY16 "GRAY16_LE"
#define YUV10 "Y444_10LE, I422_10LE, I420_10LE"
#else
#define GRAY16 "GRAY16_BE"
#define YUV10 "Y444_10BE, I422_10BE, I420_10BE"
#endif
static GstStaticPadTemplate gst_openjpeg_enc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ ARGB64, ARGB, xRGB, "
"AYUV64, " YUV10 ", "
"AYUV, Y444, Y42B, I420, Y41B, YUV9, " "GRAY8, " GRAY16 " }"))
);
static GstStaticPadTemplate gst_openjpeg_enc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("image/x-j2c; image/x-jpc; image/jp2")
);
#define parent_class gst_openjpeg_enc_parent_class
G_DEFINE_TYPE (GstOpenJPEGEnc, gst_openjpeg_enc, GST_TYPE_VIDEO_ENCODER);
static void
gst_openjpeg_enc_class_init (GstOpenJPEGEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstVideoEncoderClass *video_encoder_class;
gobject_class = (GObjectClass *) klass;
element_class = (GstElementClass *) klass;
video_encoder_class = (GstVideoEncoderClass *) klass;
gobject_class->set_property = gst_openjpeg_enc_set_property;
gobject_class->get_property = gst_openjpeg_enc_get_property;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_openjpeg_enc_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_openjpeg_enc_sink_template));
gst_element_class_set_static_metadata (element_class,
"OpenJPEG JPEG2000 encoder",
"Codec/Encoder/Video",
"Encode JPEG2000 streams",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
video_encoder_class->start = GST_DEBUG_FUNCPTR (gst_openjpeg_enc_start);
video_encoder_class->stop = GST_DEBUG_FUNCPTR (gst_openjpeg_enc_stop);
video_encoder_class->reset = GST_DEBUG_FUNCPTR (gst_openjpeg_enc_reset);
video_encoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_openjpeg_enc_set_format);
video_encoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_openjpeg_enc_handle_frame);
video_encoder_class->propose_allocation = gst_openjpeg_enc_propose_allocation;
GST_DEBUG_CATEGORY_INIT (gst_openjpeg_enc_debug, "openjpegenc", 0,
"VP8 Encoder");
}
static void
gst_openjpeg_enc_init (GstOpenJPEGEnc * self)
{
opj_set_default_encoder_parameters (&self->params);
/* TODO: Add properties for these */
self->params.cp_fixed_quality = 1;
self->params.tcp_numlayers = 1;
}
static void
gst_openjpeg_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
/* GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (object); */
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_openjpeg_enc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
/* GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (object); */
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_openjpeg_enc_start (GstVideoEncoder * encoder)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (encoder);
GST_DEBUG_OBJECT (self, "Starting");
return TRUE;
}
static gboolean
gst_openjpeg_enc_stop (GstVideoEncoder * video_encoder)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (video_encoder);
GST_DEBUG_OBJECT (self, "Stopping");
if (self->output_state) {
gst_video_codec_state_unref (self->output_state);
self->output_state = NULL;
}
if (self->input_state) {
gst_video_codec_state_unref (self->input_state);
self->input_state = NULL;
}
GST_DEBUG_OBJECT (self, "Stopped");
return TRUE;
}
static void
fill_image_packed16_4 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
guint16 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[3].data[sindex] = data[x * 4 + 0];
image->comps[0].data[sindex] = data[x * 4 + 1];
image->comps[1].data[sindex] = data[x * 4 + 2];
image->comps[2].data[sindex] = data[x * 4 + 3];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
}
}
static void
fill_image_packed8_4 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
guint8 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[3].data[sindex] = data[x * 4 + 0];
image->comps[0].data[sindex] = data[x * 4 + 1];
image->comps[1].data[sindex] = data[x * 4 + 2];
image->comps[2].data[sindex] = data[x * 4 + 3];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
}
}
static void
fill_image_packed8_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
guint8 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[0].data[sindex] = data[x * 4 + 1];
image->comps[1].data[sindex] = data[x * 4 + 2];
image->comps[2].data[sindex] = data[x * 4 + 3];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
}
}
static void
fill_image_planar16_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint c, x, y, w, h;
guint16 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
for (c = 0; c < 3; c++) {
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, c);
h = GST_VIDEO_FRAME_COMP_HEIGHT (frame, c);
data = (guint16 *) GST_VIDEO_FRAME_COMP_DATA (frame, c);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[c].data[sindex] = data[x];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, c) / 2;
}
}
}
static void
fill_image_planar8_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint c, x, y, w, h;
guint8 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
for (c = 0; c < 3; c++) {
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, c);
h = GST_VIDEO_FRAME_COMP_HEIGHT (frame, c);
data = GST_VIDEO_FRAME_COMP_DATA (frame, c);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[c].data[sindex] = data[x];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, c);
}
}
}
static void
fill_image_planar8_1 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
guint8 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[0].data[sindex] = data[x];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
}
}
static void
fill_image_planar16_1 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
guint16 *data;
gint sindex;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = GST_VIDEO_FRAME_HEIGHT (frame);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
sindex = 0;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++, sindex++) {
image->comps[0].data[sindex] = data[x];
}
data += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
}
}
static gboolean
gst_openjpeg_enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (encoder);
GstCaps *allowed_caps, *caps;
GstStructure *s;
GST_DEBUG_OBJECT (self, "Setting format: %" GST_PTR_FORMAT, state->caps);
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder));
allowed_caps = gst_caps_truncate (allowed_caps);
s = gst_caps_get_structure (allowed_caps, 0);
if (gst_structure_has_name (s, "image/jp2")) {
self->codec_format = CODEC_JP2;
self->is_jp2c = FALSE;
} else if (gst_structure_has_name (s, "image/x-j2c")) {
self->codec_format = CODEC_J2K;
self->is_jp2c = TRUE;
} else if (gst_structure_has_name (s, "image/x-jpc")) {
self->codec_format = CODEC_J2K;
self->is_jp2c = FALSE;
} else {
g_return_val_if_reached (FALSE);
}
switch (state->info.finfo->format) {
case GST_VIDEO_FORMAT_ARGB64:
self->fill_image = fill_image_packed16_4;
break;
case GST_VIDEO_FORMAT_ARGB:
self->fill_image = fill_image_packed8_4;
break;
case GST_VIDEO_FORMAT_xRGB:
self->fill_image = fill_image_packed8_3;
break;
case GST_VIDEO_FORMAT_AYUV64:
self->fill_image = fill_image_packed16_4;
break;
case GST_VIDEO_FORMAT_Y444_10LE:
case GST_VIDEO_FORMAT_Y444_10BE:
case GST_VIDEO_FORMAT_I422_10LE:
case GST_VIDEO_FORMAT_I422_10BE:
case GST_VIDEO_FORMAT_I420_10LE:
case GST_VIDEO_FORMAT_I420_10BE:
self->fill_image = fill_image_planar16_3;
break;
case GST_VIDEO_FORMAT_AYUV:
self->fill_image = fill_image_packed8_3;
break;
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_Y41B:
case GST_VIDEO_FORMAT_YUV9:
self->fill_image = fill_image_planar8_3;
break;
case GST_VIDEO_FORMAT_GRAY8:
self->fill_image = fill_image_planar8_1;
break;
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_GRAY16_BE:
self->fill_image = fill_image_planar16_1;
break;
default:
g_assert_not_reached ();
}
caps = gst_caps_new_empty_simple (gst_structure_get_name (s));
gst_caps_unref (allowed_caps);
if (self->output_state)
gst_video_codec_state_unref (self->output_state);
self->output_state =
gst_video_encoder_set_output_state (encoder, caps, state);
gst_video_encoder_negotiate (GST_VIDEO_ENCODER (encoder));
return TRUE;
}
static gboolean
gst_openjpeg_enc_reset (GstVideoEncoder * encoder, gboolean hard)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (encoder);
GST_DEBUG_OBJECT (self, "Resetting");
if (self->output_state) {
gst_video_codec_state_unref (self->output_state);
self->output_state = NULL;
}
return TRUE;
}
static opj_image_t *
gst_openjpeg_enc_fill_image (GstOpenJPEGEnc * self, GstVideoFrame * frame)
{
gint i, ncomps;
opj_image_cmptparm_t *comps;
OPJ_COLOR_SPACE colorspace;
opj_image_t *image;
ncomps = GST_VIDEO_FRAME_N_COMPONENTS (frame);
comps = g_new0 (opj_image_cmptparm_t, ncomps);
for (i = 0; i < ncomps; i++) {
comps[i].prec = GST_VIDEO_FRAME_COMP_DEPTH (frame, i);
comps[i].bpp = GST_VIDEO_FRAME_COMP_DEPTH (frame, i);
comps[i].sgnd = 0;
comps[i].w = GST_VIDEO_FRAME_COMP_WIDTH (frame, i);
comps[i].h = GST_VIDEO_FRAME_COMP_HEIGHT (frame, i);
comps[i].dx =
GST_VIDEO_FRAME_WIDTH (frame) / GST_VIDEO_FRAME_COMP_WIDTH (frame, i);
comps[i].dy =
GST_VIDEO_FRAME_HEIGHT (frame) / GST_VIDEO_FRAME_COMP_HEIGHT (frame, i);
}
if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_YUV))
colorspace = CLRSPC_SYCC;
else if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB))
colorspace = CLRSPC_SRGB;
else if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_GRAY))
colorspace = CLRSPC_GRAY;
else
g_return_val_if_reached (NULL);
image = opj_image_create (ncomps, comps, colorspace);
g_free (comps);
image->x0 = image->y0 = 0;
image->x1 = GST_VIDEO_FRAME_WIDTH (frame);
image->y1 = GST_VIDEO_FRAME_HEIGHT (frame);
self->fill_image (image, frame);
return image;
}
static GstFlowReturn
gst_openjpeg_enc_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (encoder);
GstFlowReturn ret = GST_FLOW_OK;
GstMapInfo map;
opj_cinfo_t *enc;
opj_cio_t *io;
opj_image_t *image;
GstVideoFrame vframe;
gint length;
GST_DEBUG_OBJECT (self, "Handling frame");
enc = opj_create_compress (self->codec_format);
if (!enc)
goto initialization_error;
opj_set_event_mgr ((opj_common_ptr) enc, NULL, NULL);
if (!gst_video_frame_map (&vframe, &self->input_state->info,
frame->input_buffer, GST_MAP_READ))
goto map_read_error;
image = gst_openjpeg_enc_fill_image (self, &vframe);
if (!image)
goto fill_image_error;
gst_video_frame_unmap (&vframe);
opj_setup_encoder (enc, &self->params, image);
io = opj_cio_open ((opj_common_ptr) enc, NULL, 0);
if (!io)
goto open_error;
if (!opj_encode (enc, io, image, NULL))
goto encode_error;
opj_image_destroy (image);
length = cio_tell (io);
ret =
gst_video_encoder_allocate_output_frame (encoder, frame,
length + (self->is_jp2c ? 8 : 0));
if (ret != GST_FLOW_OK)
goto allocate_error;
gst_buffer_fill (frame->output_buffer, self->is_jp2c ? 8 : 0, io->buffer,
length);
if (self->is_jp2c) {
gst_buffer_map (frame->output_buffer, &map, GST_MAP_WRITE);
GST_WRITE_UINT32_BE (map.data, length + 8);
GST_WRITE_UINT32_BE (map.data + 4, GST_MAKE_FOURCC ('j', 'p', '2', 'c'));
gst_buffer_unmap (frame->output_buffer, &map);
}
opj_cio_close (io);
opj_destroy_compress (enc);
ret = gst_video_encoder_finish_frame (encoder, frame);
return ret;
initialization_error:
{
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize OpenJPEG encoder"), (NULL));
return GST_FLOW_ERROR;
}
map_read_error:
{
opj_destroy_compress (enc);
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, CORE, FAILED,
("Failed to map input buffer"), (NULL));
return GST_FLOW_ERROR;
}
fill_image_error:
{
opj_destroy_compress (enc);
gst_video_frame_unmap (&vframe);
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to fill OpenJPEG image"), (NULL));
return GST_FLOW_ERROR;
}
open_error:
{
opj_image_destroy (image);
opj_destroy_compress (enc);
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to open OpenJPEG data"), (NULL));
return GST_FLOW_ERROR;
}
encode_error:
{
opj_cio_close (io);
opj_image_destroy (image);
opj_destroy_compress (enc);
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, STREAM, ENCODE,
("Failed to encode OpenJPEG stream"), (NULL));
return GST_FLOW_ERROR;
}
allocate_error:
{
opj_cio_close (io);
opj_destroy_compress (enc);
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, CORE, FAILED,
("Failed to allocate output buffer"), (NULL));
return ret;
}
}
static gboolean
gst_openjpeg_enc_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query)
{
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (encoder,
query);
}

71
ext/openjpeg/gstopenjpegenc.h
View file

@ -0,0 +1,71 @@
/*
* Copyright (C) 2012 Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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_OPENJPEG_ENC_H__
#define __GST_OPENJPEG_ENC_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <openjpeg.h>
G_BEGIN_DECLS
#define GST_TYPE_OPENJPEG_ENC \
(gst_openjpeg_enc_get_type())
#define GST_OPENJPEG_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENJPEG_ENC,GstOpenJPEGEnc))
#define GST_OPENJPEG_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENJPEG_ENC,GstOpenJPEGEncClass))
#define GST_IS_OPENJPEG_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENJPEG_ENC))
#define GST_IS_OPENJPEG_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENJPEG_ENC))
typedef struct _GstOpenJPEGEnc GstOpenJPEGEnc;
typedef struct _GstOpenJPEGEncClass GstOpenJPEGEncClass;
struct _GstOpenJPEGEnc
{
GstVideoEncoder parent;
/* < private > */
GstVideoCodecState *input_state;
GstVideoCodecState *output_state;
OPJ_CODEC_FORMAT codec_format;
gboolean is_jp2c;
void (*fill_image) (opj_image_t * image, GstVideoFrame *frame);
opj_cparameters_t params;
};
struct _GstOpenJPEGEncClass
{
GstVideoEncoderClass parent_class;
};
GType gst_openjpeg_enc_get_type (void);
G_END_DECLS
#endif /* __GST_OPENJPEG_ENC_H__ */