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gstreamer/ext/openjpeg/gstopenjpegenc.c
Aaron Boxer cd0c07e899 openjpegenc: add support for sub-frame encoding 
Following the standard for low latency JPEG 2000 encoding
https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-H.222.0-200701-S!Amd1!PDF-E&type=items
we divide the image into stripes of a specified height, and encode
each stripe as a self-contained JPEG 2000 image. This MR is based on
https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/merge_requests/429
2019-12-22 02:54:00 +00:00

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/*
* Copyright (C) 2012 Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 2013 Sebastian Dröge <slomo@circular-chaos.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.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstopenjpegenc.h"
#include <gst/codecparsers/gstjpeg2000sampling.h>
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_openjpeg_enc_debug);
#define GST_CAT_DEFAULT gst_openjpeg_enc_debug
#define GST_OPENJPEG_ENC_TYPE_PROGRESSION_ORDER (gst_openjpeg_enc_progression_order_get_type())
static GType
gst_openjpeg_enc_progression_order_get_type (void)
{
static const GEnumValue values[] = {
{OPJ_LRCP, "LRCP", "lrcp"},
{OPJ_RLCP, "RLCP", "rlcp"},
{OPJ_RPCL, "RPCL", "rpcl"},
{OPJ_PCRL, "PCRL", "pcrl"},
{OPJ_CPRL, "CPRL", "crpl"},
{0, NULL, NULL}
};
static volatile GType id = 0;
if (g_once_init_enter ((gsize *) & id)) {
GType _id;
_id = g_enum_register_static ("GstOpenJPEGEncProgressionOrder", values);
g_once_init_leave ((gsize *) & id, _id);
}
return id;
}
enum
{
PROP_0,
PROP_NUM_LAYERS,
PROP_NUM_RESOLUTIONS,
PROP_PROGRESSION_ORDER,
PROP_TILE_OFFSET_X,
PROP_TILE_OFFSET_Y,
PROP_TILE_WIDTH,
PROP_TILE_HEIGHT,
PROP_NUM_STRIPES,
PROP_LAST
};
#define DEFAULT_NUM_LAYERS 1
#define DEFAULT_NUM_RESOLUTIONS 6
#define DEFAULT_PROGRESSION_ORDER OPJ_LRCP
#define DEFAULT_TILE_OFFSET_X 0
#define DEFAULT_TILE_OFFSET_Y 0
#define DEFAULT_TILE_WIDTH 0
#define DEFAULT_TILE_HEIGHT 0
#define GST_OPENJPEG_ENC_DEFAULT_NUM_STRIPES 1
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 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, "
"width = (int) [1, MAX], "
"height = (int) [1, MAX], "
"num-components = (int) [1, 4], "
"num-stripes = (int) [1, MAX], "
GST_JPEG2000_SAMPLING_LIST ","
GST_JPEG2000_COLORSPACE_LIST "; "
"image/x-jpc, "
"width = (int) [1, MAX], "
"height = (int) [1, MAX], "
"num-components = (int) [1, 4], "
GST_JPEG2000_SAMPLING_LIST ","
GST_JPEG2000_COLORSPACE_LIST "; "
"image/jp2, " "width = (int) [1, MAX], " "height = (int) [1, MAX]")
);
#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;
g_object_class_install_property (gobject_class, PROP_NUM_LAYERS,
g_param_spec_int ("num-layers", "Number of layers",
"Number of layers", 1, 10, DEFAULT_NUM_LAYERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_NUM_RESOLUTIONS,
g_param_spec_int ("num-resolutions", "Number of resolutions",
"Number of resolutions", 1, 10, DEFAULT_NUM_RESOLUTIONS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PROGRESSION_ORDER,
g_param_spec_enum ("progression-order", "Progression Order",
"Progression order", GST_OPENJPEG_ENC_TYPE_PROGRESSION_ORDER,
DEFAULT_PROGRESSION_ORDER,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TILE_OFFSET_X,
g_param_spec_int ("tile-offset-x", "Tile Offset X",
"Tile Offset X", G_MININT, G_MAXINT, DEFAULT_TILE_OFFSET_X,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TILE_OFFSET_Y,
g_param_spec_int ("tile-offset-y", "Tile Offset Y",
"Tile Offset Y", G_MININT, G_MAXINT, DEFAULT_TILE_OFFSET_Y,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TILE_WIDTH,
g_param_spec_int ("tile-width", "Tile Width",
"Tile Width", 0, G_MAXINT, DEFAULT_TILE_WIDTH,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TILE_HEIGHT,
g_param_spec_int ("tile-height", "Tile Height",
"Tile Height", 0, G_MAXINT, DEFAULT_TILE_HEIGHT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstOpenJPEGEnc:num-stripes:
*
* Number of stripes to use for low latency encoding . (1 = low latency disabled)
*
* Since: 1.18
*/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_NUM_STRIPES,
g_param_spec_int ("num-stripes", "Number of stripes",
"Number of stripes for low latency encoding. (1 = low latency disabled)",
1, G_MAXINT, GST_OPENJPEG_ENC_DEFAULT_NUM_STRIPES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_static_pad_template (element_class,
&gst_openjpeg_enc_src_template);
gst_element_class_add_static_pad_template (element_class,
&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->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,
"OpenJPEG Encoder");
}
static void
gst_openjpeg_enc_init (GstOpenJPEGEnc * self)
{
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_ENCODER_SINK_PAD (self));
opj_set_default_encoder_parameters (&self->params);
self->params.cp_fixed_quality = 1;
self->params.cp_disto_alloc = 0;
self->params.cp_fixed_alloc = 0;
/*
* TODO: Add properties / caps fields for these
*
* self->params.csty;
* self->params.tcp_rates;
* self->params.tcp_distoratio;
* self->params.mode;
* self->params.irreversible;
* self->params.cp_cinema;
* self->params.cp_rsiz;
*/
self->params.tcp_numlayers = DEFAULT_NUM_LAYERS;
self->params.numresolution = DEFAULT_NUM_RESOLUTIONS;
self->params.prog_order = DEFAULT_PROGRESSION_ORDER;
self->params.cp_tx0 = DEFAULT_TILE_OFFSET_X;
self->params.cp_ty0 = DEFAULT_TILE_OFFSET_Y;
self->params.cp_tdx = DEFAULT_TILE_WIDTH;
self->params.cp_tdy = DEFAULT_TILE_HEIGHT;
self->params.tile_size_on = (self->params.cp_tdx != 0
&& self->params.cp_tdy != 0);
self->num_stripes = GST_OPENJPEG_ENC_DEFAULT_NUM_STRIPES;
}
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) {
case PROP_NUM_LAYERS:
self->params.tcp_numlayers = g_value_get_int (value);
break;
case PROP_NUM_RESOLUTIONS:
self->params.numresolution = g_value_get_int (value);
break;
case PROP_PROGRESSION_ORDER:
self->params.prog_order = g_value_get_enum (value);
break;
case PROP_TILE_OFFSET_X:
self->params.cp_tx0 = g_value_get_int (value);
break;
case PROP_TILE_OFFSET_Y:
self->params.cp_ty0 = g_value_get_int (value);
break;
case PROP_TILE_WIDTH:
self->params.cp_tdx = g_value_get_int (value);
self->params.tile_size_on = (self->params.cp_tdx != 0
&& self->params.cp_tdy != 0);
break;
case PROP_TILE_HEIGHT:
self->params.cp_tdy = g_value_get_int (value);
self->params.tile_size_on = (self->params.cp_tdx != 0
&& self->params.cp_tdy != 0);
break;
case PROP_NUM_STRIPES:
self->num_stripes = g_value_get_int (value);
break;
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) {
case PROP_NUM_LAYERS:
g_value_set_int (value, self->params.tcp_numlayers);
break;
case PROP_NUM_RESOLUTIONS:
g_value_set_int (value, self->params.numresolution);
break;
case PROP_PROGRESSION_ORDER:
g_value_set_enum (value, self->params.prog_order);
break;
case PROP_TILE_OFFSET_X:
g_value_set_int (value, self->params.cp_tx0);
break;
case PROP_TILE_OFFSET_Y:
g_value_set_int (value, self->params.cp_ty0);
break;
case PROP_TILE_WIDTH:
g_value_set_int (value, self->params.cp_tdx);
break;
case PROP_TILE_HEIGHT:
g_value_set_int (value, self->params.cp_tdy);
break;
case PROP_NUM_STRIPES:
g_value_set_int (value, self->num_stripes);
break;
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 guint
get_stripe_height (GstOpenJPEGEnc * self, guint slice_num, guint frame_height)
{
guint nominal_stripe_height = frame_height / self->num_stripes;
return (slice_num <
self->num_stripes -
1) ? nominal_stripe_height : frame_height -
(slice_num * nominal_stripe_height);
}
static void
fill_image_packed16_4 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
const guint16 *data_in, *tmp;
gint *data_out[4];
gint sstride;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = image->y1 - image->y0;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
data_in =
(guint16 *) GST_VIDEO_FRAME_PLANE_DATA (frame, 0) + image->y0 * sstride;
data_out[0] = image->comps[0].data;
data_out[1] = image->comps[1].data;
data_out[2] = image->comps[2].data;
data_out[3] = image->comps[3].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out[3] = tmp[0];
*data_out[0] = tmp[1];
*data_out[1] = tmp[2];
*data_out[2] = tmp[3];
tmp += 4;
data_out[0]++;
data_out[1]++;
data_out[2]++;
data_out[3]++;
}
data_in += sstride;
}
image->y1 -= image->y0;
image->y0 = 0;
}
static void
fill_image_packed8_4 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
const guint8 *data_in, *tmp;
gint *data_out[4];
gint sstride;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = image->y1 - image->y0;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_in =
(guint8 *) GST_VIDEO_FRAME_PLANE_DATA (frame, 0) + image->y0 * sstride;
data_out[0] = image->comps[0].data;
data_out[1] = image->comps[1].data;
data_out[2] = image->comps[2].data;
data_out[3] = image->comps[3].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out[3] = tmp[0];
*data_out[0] = tmp[1];
*data_out[1] = tmp[2];
*data_out[2] = tmp[3];
tmp += 4;
data_out[0]++;
data_out[1]++;
data_out[2]++;
data_out[3]++;
}
data_in += sstride;
}
image->y1 -= image->y0;
image->y0 = 0;
}
static void
fill_image_packed8_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
const guint8 *data_in, *tmp;
gint *data_out[3];
gint sstride;
w = GST_VIDEO_FRAME_WIDTH (frame);
h = image->y1 - image->y0;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_in =
(guint8 *) GST_VIDEO_FRAME_PLANE_DATA (frame, 0) + image->y0 * sstride;
data_out[0] = image->comps[0].data;
data_out[1] = image->comps[1].data;
data_out[2] = image->comps[2].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out[0] = tmp[1];
*data_out[1] = tmp[2];
*data_out[2] = tmp[3];
tmp += 4;
data_out[0]++;
data_out[1]++;
data_out[2]++;
}
data_in += sstride;
}
image->y1 -= image->y0;
image->y0 = 0;
}
static void
fill_image_planar16_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint c, x, y, w, h;
const guint16 *data_in, *tmp;
gint *data_out;
gint sstride;
for (c = 0; c < 3; c++) {
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, c);
h = image->comps[c].h;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, c) / 2;
data_in =
(guint16 *) GST_VIDEO_FRAME_COMP_DATA (frame, c) + image->y0 * sstride;
data_out = image->comps[c].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out = *tmp;
data_out++;
tmp++;
}
data_in += sstride;
}
}
image->y1 -= image->y0;
image->y0 = 0;
}
static void
fill_image_planar8_3 (opj_image_t * image, GstVideoFrame * frame)
{
gint c, x, y, w, h;
const guint8 *data_in, *tmp;
gint *data_out;
gint sstride;
for (c = 0; c < 3; c++) {
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, c);
h = image->comps[c].h;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, c);
data_in =
(guint8 *) GST_VIDEO_FRAME_COMP_DATA (frame, c) + image->y0 * sstride;
data_out = image->comps[c].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out = *tmp;
data_out++;
tmp++;
}
data_in += sstride;
}
}
image->y1 -= image->y0;
image->y0 = 0;
}
static void
fill_image_planar8_1 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
const guint8 *data_in, *tmp;
gint *data_out;
gint sstride;
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, 0);
h = image->comps[0].h;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_in =
(guint8 *) GST_VIDEO_FRAME_COMP_DATA (frame, 0) + image->y0 * sstride;
data_out = image->comps[0].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out = *tmp;
data_out++;
tmp++;
}
data_in += sstride;
}
image->y1 -= image->y0;
image->y0 = 0;
}
static void
fill_image_planar16_1 (opj_image_t * image, GstVideoFrame * frame)
{
gint x, y, w, h;
const guint16 *data_in, *tmp;
gint *data_out;
gint sstride;
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, 0);
h = image->comps[0].h;
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
data_in =
(guint16 *) GST_VIDEO_FRAME_COMP_DATA (frame, 0) + image->y0 * sstride;
data_out = image->comps[0].data;
for (y = 0; y < h; y++) {
tmp = data_in;
for (x = 0; x < w; x++) {
*data_out = *tmp;
data_out++;
tmp++;
}
data_in += sstride;
}
image->y1 -= image->y0;
image->y0 = 0;
}
static gboolean
gst_openjpeg_enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (encoder);
GstCaps *allowed_caps, *caps;
GstStructure *s;
const gchar *str = NULL;
const gchar *colorspace = NULL;
GstJPEG2000Sampling sampling = GST_JPEG2000_SAMPLING_NONE;
gint ncomps;
gboolean stripe_mode =
self->num_stripes != GST_OPENJPEG_ENC_DEFAULT_NUM_STRIPES;
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 = OPJ_CODEC_JP2;
self->is_jp2c = FALSE;
} else if (gst_structure_has_name (s, "image/x-j2c")) {
self->codec_format = OPJ_CODEC_J2K;
self->is_jp2c = TRUE;
} else if (gst_structure_has_name (s, "image/x-jpc")) {
self->codec_format = OPJ_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;
ncomps = 4;
break;
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_AYUV:
self->fill_image = fill_image_packed8_4;
ncomps = 4;
break;
case GST_VIDEO_FORMAT_xRGB:
self->fill_image = fill_image_packed8_3;
ncomps = 3;
break;
case GST_VIDEO_FORMAT_AYUV64:
self->fill_image = fill_image_packed16_4;
ncomps = 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;
ncomps = 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;
ncomps = 3;
break;
case GST_VIDEO_FORMAT_GRAY8:
self->fill_image = fill_image_planar8_1;
ncomps = 1;
break;
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_GRAY16_BE:
self->fill_image = fill_image_planar16_1;
ncomps = 1;
break;
default:
g_assert_not_reached ();
}
/* sampling */
/* note: encoder re-orders channels so that alpha channel is encoded as the last channel */
switch (state->info.finfo->format) {
case GST_VIDEO_FORMAT_ARGB64:
case GST_VIDEO_FORMAT_ARGB:
sampling = GST_JPEG2000_SAMPLING_RGBA;
break;
case GST_VIDEO_FORMAT_AYUV64:
case GST_VIDEO_FORMAT_AYUV:
sampling = GST_JPEG2000_SAMPLING_YBRA4444_EXT;
break;
case GST_VIDEO_FORMAT_xRGB:
sampling = GST_JPEG2000_SAMPLING_RGB;
break;
case GST_VIDEO_FORMAT_Y444_10LE:
case GST_VIDEO_FORMAT_Y444_10BE:
case GST_VIDEO_FORMAT_Y444:
sampling = GST_JPEG2000_SAMPLING_YBR444;
break;
case GST_VIDEO_FORMAT_I422_10LE:
case GST_VIDEO_FORMAT_I422_10BE:
case GST_VIDEO_FORMAT_Y42B:
sampling = GST_JPEG2000_SAMPLING_YBR422;
break;
case GST_VIDEO_FORMAT_YUV9:
sampling = GST_JPEG2000_SAMPLING_YBR410;
break;
case GST_VIDEO_FORMAT_I420_10LE:
case GST_VIDEO_FORMAT_I420_10BE:
case GST_VIDEO_FORMAT_I420:
sampling = GST_JPEG2000_SAMPLING_YBR420;
break;
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_GRAY16_LE:
case GST_VIDEO_FORMAT_GRAY16_BE:
sampling = GST_JPEG2000_SAMPLING_GRAYSCALE;
break;
default:
break;
}
if ((state->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_YUV)) {
colorspace = "sYUV";
} else if ((state->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB)) {
colorspace = "sRGB";
} else if ((state->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_GRAY)) {
colorspace = "GRAY";
} else
g_return_val_if_reached (FALSE);
if (stripe_mode) {
str = gst_structure_get_string (s, "alignment");
if (!str || strcmp (str, "stripe") != 0) {
GST_ERROR_OBJECT (self,
"Number of stripes set to %d, but alignment=stripe not supported downstream",
self->num_stripes);
return FALSE;
}
}
if (sampling != GST_JPEG2000_SAMPLING_NONE) {
caps = gst_caps_new_simple (gst_structure_get_name (s),
"colorspace", G_TYPE_STRING, colorspace,
"sampling", G_TYPE_STRING, gst_jpeg2000_sampling_to_string (sampling),
"num-components", G_TYPE_INT, ncomps,
"alignment", G_TYPE_STRING,
stripe_mode ? "stripe" : "frame",
"num-stripes", G_TYPE_INT, self->num_stripes, NULL);
} else {
caps = gst_caps_new_simple (gst_structure_get_name (s),
"colorspace", G_TYPE_STRING, colorspace,
"num-components", G_TYPE_INT, ncomps,
"alignment", G_TYPE_STRING,
stripe_mode ? "stripe" : "frame",
"num-stripes", G_TYPE_INT, self->num_stripes, NULL);
}
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 opj_image_t *
gst_openjpeg_enc_fill_image (GstOpenJPEGEnc * self, GstVideoFrame * frame,
guint slice_num)
{
gint i, ncomps;
opj_image_cmptparm_t *comps;
OPJ_COLOR_SPACE colorspace;
opj_image_t *image;
guint nominal_stripe_height =
GST_VIDEO_FRAME_HEIGHT (frame) / self->num_stripes;
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 =
get_stripe_height (self, slice_num, 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 = OPJ_CLRSPC_SYCC;
else if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB))
colorspace = OPJ_CLRSPC_SRGB;
else if ((frame->info.finfo->flags & GST_VIDEO_FORMAT_FLAG_GRAY))
colorspace = OPJ_CLRSPC_GRAY;
else
g_return_val_if_reached (NULL);
image = opj_image_create (ncomps, comps, colorspace);
g_free (comps);
image->x0 = 0;
image->x1 = GST_VIDEO_FRAME_WIDTH (frame);
image->y0 = slice_num * nominal_stripe_height;
image->y1 =
image->y0 + get_stripe_height (self, slice_num,
GST_VIDEO_FRAME_HEIGHT (frame));
self->fill_image (image, frame);
return image;
}
static void
gst_openjpeg_enc_opj_error (const char *msg, void *userdata)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (userdata);
gchar *trimmed = g_strchomp (g_strdup (msg));
GST_TRACE_OBJECT (self, "openjpeg error: %s", trimmed);
g_free (trimmed);
}
static void
gst_openjpeg_enc_opj_warning (const char *msg, void *userdata)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (userdata);
gchar *trimmed = g_strchomp (g_strdup (msg));
GST_TRACE_OBJECT (self, "openjpeg warning: %s", trimmed);
g_free (trimmed);
}
static void
gst_openjpeg_enc_opj_info (const char *msg, void *userdata)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (userdata);
gchar *trimmed = g_strchomp (g_strdup (msg));
GST_TRACE_OBJECT (self, "openjpeg info: %s", trimmed);
g_free (trimmed);
}
typedef struct
{
guint8 *data;
guint allocsize;
guint offset;
guint size;
} MemStream;
static OPJ_SIZE_T
read_fn (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
{
g_return_val_if_reached (-1);
}
static OPJ_SIZE_T
write_fn (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
{
MemStream *mstream = p_user_data;
if (mstream->offset + p_nb_bytes > mstream->allocsize) {
while (mstream->offset + p_nb_bytes > mstream->allocsize)
mstream->allocsize *= 2;
mstream->data = g_realloc (mstream->data, mstream->allocsize);
}
memcpy (mstream->data + mstream->offset, p_buffer, p_nb_bytes);
if (mstream->offset + p_nb_bytes > mstream->size)
mstream->size = mstream->offset + p_nb_bytes;
mstream->offset += p_nb_bytes;
return p_nb_bytes;
}
static OPJ_OFF_T
skip_fn (OPJ_OFF_T p_nb_bytes, void *p_user_data)
{
MemStream *mstream = p_user_data;
if (mstream->offset + p_nb_bytes > mstream->allocsize) {
while (mstream->offset + p_nb_bytes > mstream->allocsize)
mstream->allocsize *= 2;
mstream->data = g_realloc (mstream->data, mstream->allocsize);
}
if (mstream->offset + p_nb_bytes > mstream->size)
mstream->size = mstream->offset + p_nb_bytes;
mstream->offset += p_nb_bytes;
return p_nb_bytes;
}
static OPJ_BOOL
seek_fn (OPJ_OFF_T p_nb_bytes, void *p_user_data)
{
MemStream *mstream = p_user_data;
if (p_nb_bytes > mstream->size)
return OPJ_FALSE;
mstream->offset = p_nb_bytes;
return OPJ_TRUE;
}
static GstFlowReturn
gst_openjpeg_enc_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
GstOpenJPEGEnc *self = GST_OPENJPEG_ENC (encoder);
GstFlowReturn ret = GST_FLOW_OK;
opj_codec_t *enc;
opj_stream_t *stream;
MemStream mstream;
opj_image_t *image;
GstVideoFrame vframe;
guint i;
GST_DEBUG_OBJECT (self, "Handling frame");
for (i = 0; i < self->num_stripes; ++i) {
enc = opj_create_compress (self->codec_format);
if (!enc)
goto initialization_error;
if (G_UNLIKELY (gst_debug_category_get_threshold (GST_CAT_DEFAULT) >=
GST_LEVEL_TRACE)) {
opj_set_info_handler (enc, gst_openjpeg_enc_opj_info, self);
opj_set_warning_handler (enc, gst_openjpeg_enc_opj_warning, self);
opj_set_error_handler (enc, gst_openjpeg_enc_opj_error, self);
} else {
opj_set_info_handler (enc, NULL, NULL);
opj_set_warning_handler (enc, NULL, NULL);
opj_set_error_handler (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, i);
if (!image)
goto fill_image_error;
gst_video_frame_unmap (&vframe);
if (vframe.info.finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB) {
self->params.tcp_mct = 1;
}
opj_setup_encoder (enc, &self->params, image);
stream = opj_stream_create (4096, OPJ_FALSE);
if (!stream)
goto open_error;
mstream.allocsize = 4096;
mstream.data = g_malloc (mstream.allocsize);
mstream.offset = 0;
mstream.size = 0;
opj_stream_set_read_function (stream, read_fn);
opj_stream_set_write_function (stream, write_fn);
opj_stream_set_skip_function (stream, skip_fn);
opj_stream_set_seek_function (stream, seek_fn);
opj_stream_set_user_data (stream, &mstream, NULL);
opj_stream_set_user_data_length (stream, mstream.size);
if (!opj_start_compress (enc, image, stream))
goto encode_error;
if (!opj_encode (enc, stream))
goto encode_error;
if (!opj_end_compress (enc, stream))
goto encode_error;
opj_image_destroy (image);
opj_stream_destroy (stream);
opj_destroy_codec (enc);
frame->output_buffer = gst_buffer_new ();
if (self->is_jp2c) {
GstMapInfo map;
GstMemory *mem;
mem = gst_allocator_alloc (NULL, 8, NULL);
gst_memory_map (mem, &map, GST_MAP_WRITE);
GST_WRITE_UINT32_BE (map.data, mstream.size + 8);
GST_WRITE_UINT32_BE (map.data + 4, GST_MAKE_FOURCC ('j', 'p', '2', 'c'));
gst_memory_unmap (mem, &map);
gst_buffer_append_memory (frame->output_buffer, mem);
}
gst_buffer_append_memory (frame->output_buffer,
gst_memory_new_wrapped (0, mstream.data, mstream.allocsize, 0,
mstream.size, NULL, (GDestroyNotify) g_free));
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
ret =
(i ==
self->num_stripes -
1) ? gst_video_encoder_finish_frame (encoder,
frame) : gst_video_encoder_finish_subframe (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_codec (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_codec (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_codec (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_stream_destroy (stream);
g_free (mstream.data);
opj_image_destroy (image);
opj_destroy_codec (enc);
gst_video_codec_frame_unref (frame);
GST_ELEMENT_ERROR (self, STREAM, ENCODE,
("Failed to encode OpenJPEG stream"), (NULL));
return GST_FLOW_ERROR;
}
}
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);
}
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