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gstreamer/subprojects/gst-plugins-bad/ext/openjpeg/gstopenjpegdec.c
Stéphane Cerveau f3dfe7b125 openjpegdec: allow multithread decoding only in subframe mode 
To avoid mis-ordered frames, allow multithread decoding only in
subframe mode.

Fixes #1786

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3948>
2023-03-25 06:03:02 +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.
*
*/
/**
* SECTION:element-openjpegdec
* @title: openjpegdec
* @see_also: openjpegenc
*
* openjpegdec decodes openjpeg stream.
*
* ## Example launch lines
* |[
* gst-launch-1.0 -v videotestsrc num-buffers=10 ! openjpegenc ! jpeg2000parse ! openjpegdec ! videoconvert ! autovideosink sync=false
* ]| Encode and decode whole frames.
* |[
* gst-launch-1.0 -v videotestsrc num-buffers=10 ! openjpegenc num-threads=8 num-stripes=8 ! jpeg2000parse ! openjpegdec max-slice-threads=8 ! videoconvert ! autovideosink sync=fals
* ]| Encode and decode frame split with stripes.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstopenjpegdec.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_openjpeg_dec_debug);
#define GST_CAT_DEFAULT gst_openjpeg_dec_debug
enum
{
PROP_0,
PROP_MAX_THREADS,
PROP_MAX_SLICE_THREADS,
PROP_LAST
};
#define GST_OPENJPEG_DEC_DEFAULT_MAX_THREADS 0
/* prototypes */
static void gst_openjpeg_dec_finalize (GObject * object);
static GstStateChangeReturn
gst_openjpeg_dec_change_state (GstElement * element, GstStateChange transition);
static gboolean gst_openjpeg_dec_start (GstVideoDecoder * decoder);
static gboolean gst_openjpeg_dec_stop (GstVideoDecoder * decoder);
static gboolean gst_openjpeg_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_openjpeg_dec_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_openjpeg_dec_finish (GstVideoDecoder * decoder);
static GstFlowReturn gst_openjpeg_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_openjpeg_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
static void gst_openjpeg_dec_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_openjpeg_dec_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_openjpeg_dec_decode_frame_multiple (GstVideoDecoder *
decoder, GstVideoCodecFrame * frame);
static GstFlowReturn gst_openjpeg_dec_decode_frame_single (GstVideoDecoder *
decoder, GstVideoCodecFrame * frame);
static void gst_openjpeg_dec_pause_loop (GstOpenJPEGDec * self,
GstFlowReturn flow_ret);
#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_dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("image/x-j2c, "
GST_JPEG2000_SAMPLING_LIST "; "
"image/x-jpc,"
GST_JPEG2000_SAMPLING_LIST "; image/jp2 ; "
"image/x-jpc-striped, "
"num-stripes = (int) [2, MAX], " GST_JPEG2000_SAMPLING_LIST)
);
static GstStaticPadTemplate gst_openjpeg_dec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ ARGB64, ARGB, xRGB, "
"AYUV64, " YUV10 ", "
"AYUV, Y444, Y42B, I420, Y41B, YUV9, " "GRAY8, " GRAY16 " }"))
);
#define parent_class gst_openjpeg_dec_parent_class
G_DEFINE_TYPE (GstOpenJPEGDec, gst_openjpeg_dec, GST_TYPE_VIDEO_DECODER);
GST_ELEMENT_REGISTER_DEFINE (openjpegdec, "openjpegdec",
GST_RANK_PRIMARY, GST_TYPE_OPENJPEG_DEC);
static void
gst_openjpeg_dec_class_init (GstOpenJPEGDecClass * klass)
{
GstElementClass *element_class;
GstVideoDecoderClass *video_decoder_class;
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
element_class = (GstElementClass *) klass;
video_decoder_class = (GstVideoDecoderClass *) klass;
gst_element_class_add_static_pad_template (element_class,
&gst_openjpeg_dec_src_template);
gst_element_class_add_static_pad_template (element_class,
&gst_openjpeg_dec_sink_template);
gst_element_class_set_static_metadata (element_class,
"OpenJPEG JPEG2000 decoder",
"Codec/Decoder/Video",
"Decode JPEG2000 streams",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_openjpeg_dec_change_state);
video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_openjpeg_dec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_openjpeg_dec_stop);
video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_openjpeg_dec_flush);
video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_openjpeg_dec_finish);
video_decoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_openjpeg_dec_set_format);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_openjpeg_dec_handle_frame);
video_decoder_class->decide_allocation = gst_openjpeg_dec_decide_allocation;
gobject_class->set_property = gst_openjpeg_dec_set_property;
gobject_class->get_property = gst_openjpeg_dec_get_property;
gobject_class->finalize = gst_openjpeg_dec_finalize;
/**
* GstOpenJPEGDec:max-slice-threads:
*
* Maximum number of worker threads to spawn. (0 = auto)
*
* Since: 1.20
*/
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_MAX_SLICE_THREADS, g_param_spec_int ("max-slice-threads",
"Maximum slice decoding threads",
"Maximum number of worker threads to spawn according to the frame boundary. (0 = no thread)",
0, G_MAXINT, GST_OPENJPEG_DEC_DEFAULT_MAX_THREADS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstOpenJPEGDec:max-threads:
*
* Maximum number of worker threads to spawn used by openjpeg internally. (0 = no thread)
*
* Since: 1.18
*/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_THREADS,
g_param_spec_int ("max-threads", "Maximum openjpeg threads",
"Maximum number of worker threads to spawn used by openjpeg internally. (0 = no thread)",
0, G_MAXINT, GST_OPENJPEG_DEC_DEFAULT_MAX_THREADS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
GST_DEBUG_CATEGORY_INIT (gst_openjpeg_dec_debug, "openjpegdec", 0,
"OpenJPEG Decoder");
}
static void
gst_openjpeg_dec_init (GstOpenJPEGDec * self)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) self;
gst_video_decoder_set_packetized (decoder, TRUE);
gst_video_decoder_set_needs_format (decoder, TRUE);
gst_video_decoder_set_use_default_pad_acceptcaps (GST_VIDEO_DECODER_CAST
(self), TRUE);
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (self));
opj_set_default_decoder_parameters (&self->params);
self->sampling = GST_JPEG2000_SAMPLING_NONE;
self->max_slice_threads = GST_OPENJPEG_DEC_DEFAULT_MAX_THREADS;
self->available_threads = GST_OPENJPEG_DEC_DEFAULT_MAX_THREADS;
self->num_procs = g_get_num_processors ();
g_mutex_init (&self->messages_lock);
g_mutex_init (&self->decoding_lock);
g_cond_init (&self->messages_cond);
g_queue_init (&self->messages);
}
static gboolean
gst_openjpeg_dec_start (GstVideoDecoder * decoder)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GST_DEBUG_OBJECT (self, "Starting");
self->available_threads = self->max_slice_threads;
self->decode_frame = gst_openjpeg_dec_decode_frame_single;
if (self->available_threads) {
if (gst_video_decoder_get_subframe_mode (decoder))
self->decode_frame = gst_openjpeg_dec_decode_frame_multiple;
else
GST_INFO_OBJECT (self,
"Multiple threads decoding only available in subframe mode.");
}
return TRUE;
}
static gboolean
gst_openjpeg_dec_stop (GstVideoDecoder * video_decoder)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (video_decoder);
GST_DEBUG_OBJECT (self, "Stopping");
g_mutex_lock (&self->messages_lock);
gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (video_decoder));
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;
}
g_mutex_unlock (&self->messages_lock);
GST_DEBUG_OBJECT (self, "Stopped");
return TRUE;
}
static void
gst_openjpeg_dec_finalize (GObject * object)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (object);
g_mutex_clear (&self->messages_lock);
g_mutex_clear (&self->decoding_lock);
g_cond_clear (&self->messages_cond);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstStateChangeReturn
gst_openjpeg_dec_change_state (GstElement * element, GstStateChange transition)
{
GstOpenJPEGDec *self;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
g_return_val_if_fail (GST_IS_OPENJPEG_DEC (element),
GST_STATE_CHANGE_FAILURE);
self = GST_OPENJPEG_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
self->draining = FALSE;
self->started = FALSE;
self->flushing = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
self->flushing = TRUE;
g_mutex_lock (&self->drain_lock);
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
g_mutex_unlock (&self->drain_lock);
break;
default:
break;
}
ret =
GST_ELEMENT_CLASS (gst_openjpeg_dec_parent_class)->change_state
(element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
self->started = FALSE;
self->downstream_flow_ret = GST_FLOW_FLUSHING;
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static void
gst_openjpeg_dec_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstOpenJPEGDec *dec = (GstOpenJPEGDec *) object;
switch (prop_id) {
case PROP_MAX_SLICE_THREADS:
g_atomic_int_set (&dec->max_slice_threads, g_value_get_int (value));
break;
case PROP_MAX_THREADS:
g_atomic_int_set (&dec->max_threads, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_openjpeg_dec_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstOpenJPEGDec *dec = (GstOpenJPEGDec *) object;
switch (prop_id) {
case PROP_MAX_SLICE_THREADS:
g_value_set_int (value, g_atomic_int_get (&dec->max_slice_threads));
break;
case PROP_MAX_THREADS:
g_value_set_int (value, g_atomic_int_get (&dec->max_threads));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_openjpeg_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GstStructure *s;
GST_DEBUG_OBJECT (self, "Setting format: %" GST_PTR_FORMAT, state->caps);
s = gst_caps_get_structure (state->caps, 0);
self->color_space = OPJ_CLRSPC_UNKNOWN;
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") ||
gst_structure_has_name (s, "image/x-jpc-striped")) {
self->codec_format = OPJ_CODEC_J2K;
self->is_jp2c = FALSE;
} else {
g_return_val_if_reached (FALSE);
}
if (gst_structure_has_name (s, "image/x-jpc-striped")) {
gst_structure_get_int (s, "num-stripes", &self->num_stripes);
gst_video_decoder_set_subframe_mode (decoder, TRUE);
} else {
self->num_stripes = 1;
gst_video_decoder_set_subframe_mode (decoder, FALSE);
}
self->sampling =
gst_jpeg2000_sampling_from_string (gst_structure_get_string (s,
"sampling"));
if (gst_jpeg2000_sampling_is_rgb (self->sampling))
self->color_space = OPJ_CLRSPC_SRGB;
else if (gst_jpeg2000_sampling_is_mono (self->sampling))
self->color_space = OPJ_CLRSPC_GRAY;
else if (gst_jpeg2000_sampling_is_yuv (self->sampling))
self->color_space = OPJ_CLRSPC_SYCC;
self->ncomps = 0;
gst_structure_get_int (s, "num-components", &self->ncomps);
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
return TRUE;
}
static gboolean
reverse_rgb_channels (GstJPEG2000Sampling sampling)
{
return sampling == GST_JPEG2000_SAMPLING_BGR
|| sampling == GST_JPEG2000_SAMPLING_BGRA;
}
static void
fill_frame_packed8_4 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint8 *data_out, *tmp;
const gint *data_in[4];
gint dstride;
gint off[4];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
for (c = 0; c < 4; c++) {
data_in[c] = image->comps[c].data;
off[c] = 0x80 * image->comps[c].sgnd;
}
/* copy only the stripe content (image) to the full size frame */
y0 = image->y0;
y1 = image->y1;
GST_DEBUG_OBJECT (self, "yo=%d y1=%d", y0, y1);
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
/* alpha, from 4'th input channel */
tmp[0] = off[3] + *data_in[3];
/* colour channels */
tmp[1] = off[0] + *data_in[0];
tmp[2] = off[1] + *data_in[1];
tmp[3] = off[2] + *data_in[2];
tmp += 4;
data_in[0]++;
data_in[1]++;
data_in[2]++;
data_in[3]++;
}
data_out += dstride;
}
}
static void
fill_frame_packed16_4 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint16 *data_out, *tmp;
const gint *data_in[4];
gint dstride;
gint shift[4], off[4];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
for (c = 0; c < 4; c++) {
data_in[c] = image->comps[c].data;
off[c] = (1 << (image->comps[c].prec - 1)) * image->comps[c].sgnd;
shift[c] =
MAX (MIN (GST_VIDEO_FRAME_COMP_DEPTH (frame, c) - image->comps[c].prec,
8), 0);
}
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
/* alpha, from 4'th input channel */
tmp[0] = off[3] + (*data_in[3] << shift[3]);
/* colour channels */
tmp[1] = off[0] + (*data_in[0] << shift[0]);
tmp[2] = off[1] + (*data_in[1] << shift[1]);
tmp[3] = off[2] + (*data_in[2] << shift[2]);
tmp += 4;
data_in[0]++;
data_in[1]++;
data_in[2]++;
data_in[3]++;
}
data_out += dstride;
}
}
static void
fill_frame_packed8_3 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint8 *data_out, *tmp;
const gint *data_in[3];
gint dstride;
gint off[3];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
for (c = 0; c < 3; c++) {
data_in[c] = image->comps[c].data;
off[c] = 0x80 * image->comps[c].sgnd;
};
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[0] = off[0] + *data_in[0];
tmp[1] = off[1] + *data_in[1];
tmp[2] = off[2] + *data_in[2];
data_in[0]++;
data_in[1]++;
data_in[2]++;
tmp += 3;
}
data_out += dstride;
}
}
static void
fill_frame_packed16_3 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint16 *data_out, *tmp;
const gint *data_in[3];
gint dstride;
gint shift[3], off[3];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
for (c = 0; c < 3; c++) {
data_in[c] = image->comps[c].data;
off[c] = (1 << (image->comps[c].prec - 1)) * image->comps[c].sgnd;
shift[c] =
MAX (MIN (GST_VIDEO_FRAME_COMP_DEPTH (frame, c) - image->comps[c].prec,
8), 0);
}
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[1] = off[0] + (*data_in[0] << shift[0]);
tmp[2] = off[1] + (*data_in[1] << shift[1]);
tmp[3] = off[2] + (*data_in[2] << shift[2]);
tmp += 4;
data_in[0]++;
data_in[1]++;
data_in[2]++;
}
data_out += dstride;
}
}
/* for grayscale with alpha */
static void
fill_frame_packed8_2 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint8 *data_out, *tmp;
const gint *data_in[2];
gint dstride;
gint off[2];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
for (c = 0; c < 2; c++) {
data_in[c] = image->comps[c].data;
off[c] = 0x80 * image->comps[c].sgnd;
};
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
/* alpha, from 2nd input channel */
tmp[0] = off[1] + *data_in[1];
/* luminance, from first input channel */
tmp[1] = off[0] + *data_in[0];
tmp[2] = tmp[1];
tmp[3] = tmp[1];
data_in[0]++;
data_in[1]++;
tmp += 4;
}
data_out += dstride;
}
}
/* for grayscale with alpha */
static void
fill_frame_packed16_2 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint16 *data_out, *tmp;
const gint *data_in[2];
gint dstride;
gint shift[2], off[2];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
for (c = 0; c < 2; c++) {
data_in[c] = image->comps[c].data;
off[c] = (1 << (image->comps[c].prec - 1)) * image->comps[c].sgnd;
shift[c] =
MAX (MIN (GST_VIDEO_FRAME_COMP_DEPTH (frame, c) - image->comps[c].prec,
8), 0);
}
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
/* alpha, from 2nd input channel */
tmp[0] = off[1] + (*data_in[1] << shift[1]);
/* luminance, from first input channel */
tmp[1] = off[0] + (*data_in[0] << shift[0]);
tmp[2] = tmp[1];
tmp[3] = tmp[1];
tmp += 4;
data_in[0]++;
data_in[1]++;
}
data_out += dstride;
}
}
static void
fill_frame_planar8_1 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w;
guint8 *data_out, *tmp;
const gint *data_in;
gint dstride;
gint off;
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data_in = image->comps[0].data;
off = 0x80 * image->comps[0].sgnd;
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++)
*tmp++ = off + *data_in++;
data_out += dstride;
}
}
static void
fill_frame_planar16_1 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w;
guint16 *data_out, *tmp;
const gint *data_in;
gint dstride;
gint shift, off;
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
data_in = image->comps[0].data;
off = (1 << (image->comps[0].prec - 1)) * image->comps[0].sgnd;
shift =
MAX (MIN (GST_VIDEO_FRAME_COMP_DEPTH (frame, 0) - image->comps[0].prec,
8), 0);
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++)
*tmp++ = off + (*data_in++ << shift);
data_out += dstride;
}
}
static void
fill_frame_planar8_3 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint c, x, y, y0, y1, w;
guint8 *data_out, *tmp;
const gint *data_in;
gint dstride, off;
for (c = 0; c < 3; c++) {
opj_image_comp_t *comp = image->comps + c;
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, c);
dstride = GST_VIDEO_FRAME_COMP_STRIDE (frame, c);
data_out = GST_VIDEO_FRAME_COMP_DATA (frame, c);
data_in = comp->data;
off = 0x80 * comp->sgnd;
/* copy only the stripe content (image) to the full size frame */
y0 = comp->y0;
y1 = comp->y0 + comp->h;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++)
*tmp++ = off + *data_in++;
data_out += dstride;
}
}
}
static void
fill_frame_planar16_3 (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint c, x, y, y0, y1, w;
guint16 *data_out, *tmp;
const gint *data_in;
gint dstride;
gint shift, off;
for (c = 0; c < 3; c++) {
opj_image_comp_t *comp = image->comps + c;
w = GST_VIDEO_FRAME_COMP_WIDTH (frame, c);
dstride = GST_VIDEO_FRAME_COMP_STRIDE (frame, c) / 2;
data_out = (guint16 *) GST_VIDEO_FRAME_COMP_DATA (frame, c);
data_in = comp->data;
off = (1 << (comp->prec - 1)) * comp->sgnd;
shift =
MAX (MIN (GST_VIDEO_FRAME_COMP_DEPTH (frame, c) - comp->prec, 8), 0);
/* copy only the stripe content (image) to the full size frame */
y0 = comp->y0;
y1 = comp->y0 + comp->h;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++)
*tmp++ = off + (*data_in++ << shift);
data_out += dstride;
}
}
}
static void
fill_frame_planar8_3_generic (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint8 *data_out, *tmp;
const gint *data_in[3];
gint dstride;
gint dx[3], dy[3], off[3];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
for (c = 0; c < 3; c++) {
data_in[c] = image->comps[c].data;
dx[c] = image->comps[c].dx;
dy[c] = image->comps[c].dy;
off[c] = 0x80 * image->comps[c].sgnd;
}
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[0] = 0xff;
tmp[1] = off[0] + data_in[0][((y / dy[0]) * w + x) / dx[0]];
tmp[2] = off[1] + data_in[1][((y / dy[1]) * w + x) / dx[1]];
tmp[3] = off[2] + data_in[2][((y / dy[2]) * w + x) / dx[2]];
tmp += 4;
}
data_out += dstride;
}
}
static void
fill_frame_planar16_3_generic (GstOpenJPEGDec * self, GstVideoFrame * frame,
opj_image_t * image)
{
gint x, y, y0, y1, w, c;
guint16 *data_out, *tmp;
const gint *data_in[3];
gint dstride;
gint dx[3], dy[3], shift[3], off[3];
w = GST_VIDEO_FRAME_WIDTH (frame);
data_out = (guint16 *) GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) / 2;
for (c = 0; c < 3; c++) {
dx[c] = image->comps[c].dx;
dy[c] = image->comps[c].dy;
data_in[c] = image->comps[c].data;
off[c] = (1 << (image->comps[c].prec - 1)) * image->comps[c].sgnd;
shift[c] =
MAX (MIN (GST_VIDEO_FRAME_COMP_DEPTH (frame, c) - image->comps[c].prec,
8), 0);
}
y0 = image->y0;
y1 = image->y1;
data_out += y0 * dstride;
for (y = y0; y < y1; y++) {
tmp = data_out;
for (x = 0; x < w; x++) {
tmp[0] = 0xff;
tmp[1] = off[0] + (data_in[0][((y / dy[0]) * w + x) / dx[0]] << shift[0]);
tmp[2] = off[1] + (data_in[1][((y / dy[1]) * w + x) / dx[1]] << shift[1]);
tmp[3] = off[2] + (data_in[2][((y / dy[2]) * w + x) / dx[2]] << shift[2]);
tmp += 4;
}
data_out += dstride;
}
}
static gint
get_highest_prec (opj_image_t * image)
{
gint i;
gint ret = 0;
for (i = 0; i < image->numcomps; i++)
ret = MAX (image->comps[i].prec, ret);
return ret;
}
static GstFlowReturn
gst_openjpeg_dec_negotiate (GstOpenJPEGDec * self, opj_image_t * image)
{
GstVideoFormat format;
if (image->color_space == OPJ_CLRSPC_UNKNOWN || image->color_space == 0)
image->color_space = self->color_space;
if (!self->input_state)
return GST_FLOW_FLUSHING;
switch (image->color_space) {
case OPJ_CLRSPC_SRGB:
if (image->numcomps == 4) {
if (image->comps[0].dx != 1 || image->comps[0].dy != 1 ||
image->comps[1].dx != 1 || image->comps[1].dy != 1 ||
image->comps[2].dx != 1 || image->comps[2].dy != 1 ||
image->comps[3].dx != 1 || image->comps[3].dy != 1) {
GST_ERROR_OBJECT (self, "Sub-sampling for RGBA not supported");
return GST_FLOW_NOT_NEGOTIATED;
}
if (get_highest_prec (image) == 8) {
self->fill_frame = fill_frame_packed8_4;
format =
reverse_rgb_channels (self->sampling) ? GST_VIDEO_FORMAT_ABGR :
GST_VIDEO_FORMAT_ARGB;
} else if (get_highest_prec (image) <= 16) {
self->fill_frame = fill_frame_packed16_4;
format = GST_VIDEO_FORMAT_ARGB64;
} else {
GST_ERROR_OBJECT (self, "Unsupported depth %d", image->comps[3].prec);
return GST_FLOW_NOT_NEGOTIATED;
}
} else if (image->numcomps == 3) {
if (image->comps[0].dx != 1 || image->comps[0].dy != 1 ||
image->comps[1].dx != 1 || image->comps[1].dy != 1 ||
image->comps[2].dx != 1 || image->comps[2].dy != 1) {
GST_ERROR_OBJECT (self, "Sub-sampling for RGB not supported");
return GST_FLOW_NOT_NEGOTIATED;
}
if (get_highest_prec (image) == 8) {
self->fill_frame = fill_frame_packed8_3;
format =
reverse_rgb_channels (self->sampling) ? GST_VIDEO_FORMAT_BGR :
GST_VIDEO_FORMAT_RGB;
} else if (get_highest_prec (image) <= 16) {
self->fill_frame = fill_frame_packed16_3;
format = GST_VIDEO_FORMAT_ARGB64;
} else {
GST_ERROR_OBJECT (self, "Unsupported depth %d",
get_highest_prec (image));
return GST_FLOW_NOT_NEGOTIATED;
}
} else {
GST_ERROR_OBJECT (self, "Unsupported number of RGB components: %d",
image->numcomps);
return GST_FLOW_NOT_NEGOTIATED;
}
break;
case OPJ_CLRSPC_GRAY:
if (image->numcomps == 1) {
if (image->comps[0].dx != 1 && image->comps[0].dy != 1) {
GST_ERROR_OBJECT (self, "Sub-sampling for GRAY not supported");
return GST_FLOW_NOT_NEGOTIATED;
}
if (get_highest_prec (image) == 8) {
self->fill_frame = fill_frame_planar8_1;
format = GST_VIDEO_FORMAT_GRAY8;
} else if (get_highest_prec (image) <= 16) {
self->fill_frame = fill_frame_planar16_1;
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
format = GST_VIDEO_FORMAT_GRAY16_LE;
#else
format = GST_VIDEO_FORMAT_GRAY16_BE;
#endif
} else {
GST_ERROR_OBJECT (self, "Unsupported depth %d",
get_highest_prec (image));
return GST_FLOW_NOT_NEGOTIATED;
}
} else if (image->numcomps == 2) {
if ((image->comps[0].dx != 1 && image->comps[0].dy != 1) ||
(image->comps[1].dx != 1 && image->comps[1].dy != 1)) {
GST_ERROR_OBJECT (self, "Sub-sampling for GRAY not supported");
return GST_FLOW_NOT_NEGOTIATED;
}
if (get_highest_prec (image) == 8) {
self->fill_frame = fill_frame_packed8_2;
format = GST_VIDEO_FORMAT_ARGB;
} else if (get_highest_prec (image) <= 16) {
self->fill_frame = fill_frame_packed16_2;
format = GST_VIDEO_FORMAT_ARGB64;
} else {
GST_ERROR_OBJECT (self, "Unsupported depth %d",
get_highest_prec (image));
return GST_FLOW_NOT_NEGOTIATED;
}
} else {
GST_ERROR_OBJECT (self, "Unsupported number of GRAY components: %d",
image->numcomps);
return GST_FLOW_NOT_NEGOTIATED;
}
break;
case OPJ_CLRSPC_SYCC:
if (image->numcomps != 3 && image->numcomps != 4) {
GST_ERROR_OBJECT (self, "Unsupported number of YUV components: %d",
image->numcomps);
return GST_FLOW_NOT_NEGOTIATED;
}
if (image->comps[0].dx != 1 || image->comps[0].dy != 1) {
GST_ERROR_OBJECT (self, "Sub-sampling of luma plane not supported");
return GST_FLOW_NOT_NEGOTIATED;
}
if (image->comps[1].dx != image->comps[2].dx ||
image->comps[1].dy != image->comps[2].dy) {
GST_ERROR_OBJECT (self,
"Different sub-sampling of chroma planes not supported");
return GST_FLOW_ERROR;
}
if (image->numcomps == 4) {
if (image->comps[3].dx != 1 || image->comps[3].dy != 1) {
GST_ERROR_OBJECT (self, "Sub-sampling of alpha plane not supported");
return GST_FLOW_NOT_NEGOTIATED;
}
if (get_highest_prec (image) == 8) {
self->fill_frame = fill_frame_packed8_4;
format = GST_VIDEO_FORMAT_AYUV;
} else if (image->comps[3].prec <= 16) {
self->fill_frame = fill_frame_packed16_4;
format = GST_VIDEO_FORMAT_AYUV64;
} else {
GST_ERROR_OBJECT (self, "Unsupported depth %d", image->comps[0].prec);
return GST_FLOW_NOT_NEGOTIATED;
}
} else if (image->numcomps == 3) {
if (get_highest_prec (image) == 8) {
if (image->comps[1].dx == 1 && image->comps[1].dy == 1) {
self->fill_frame = fill_frame_planar8_3;
format = GST_VIDEO_FORMAT_Y444;
} else if (image->comps[1].dx == 2 && image->comps[1].dy == 1) {
self->fill_frame = fill_frame_planar8_3;
format = GST_VIDEO_FORMAT_Y42B;
} else if (image->comps[1].dx == 2 && image->comps[1].dy == 2) {
self->fill_frame = fill_frame_planar8_3;
format = GST_VIDEO_FORMAT_I420;
} else if (image->comps[1].dx == 4 && image->comps[1].dy == 1) {
self->fill_frame = fill_frame_planar8_3;
format = GST_VIDEO_FORMAT_Y41B;
} else if (image->comps[1].dx == 4 && image->comps[1].dy == 4) {
self->fill_frame = fill_frame_planar8_3;
format = GST_VIDEO_FORMAT_YUV9;
} else {
self->fill_frame = fill_frame_planar8_3_generic;
format = GST_VIDEO_FORMAT_AYUV;
}
} else if (get_highest_prec (image) <= 16) {
if (image->comps[0].prec == 10 &&
image->comps[1].prec == 10 && image->comps[2].prec == 10) {
if (image->comps[1].dx == 1 && image->comps[1].dy == 1) {
self->fill_frame = fill_frame_planar16_3;
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
format = GST_VIDEO_FORMAT_Y444_10LE;
#else
format = GST_VIDEO_FORMAT_Y444_10BE;
#endif
} else if (image->comps[1].dx == 2 && image->comps[1].dy == 1) {
self->fill_frame = fill_frame_planar16_3;
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
format = GST_VIDEO_FORMAT_I422_10LE;
#else
format = GST_VIDEO_FORMAT_I422_10BE;
#endif
} else if (image->comps[1].dx == 2 && image->comps[1].dy == 2) {
self->fill_frame = fill_frame_planar16_3;
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
format = GST_VIDEO_FORMAT_I420_10LE;
#else
format = GST_VIDEO_FORMAT_I420_10BE;
#endif
} else {
self->fill_frame = fill_frame_planar16_3_generic;
format = GST_VIDEO_FORMAT_AYUV64;
}
} else {
self->fill_frame = fill_frame_planar16_3_generic;
format = GST_VIDEO_FORMAT_AYUV64;
}
} else {
GST_ERROR_OBJECT (self, "Unsupported depth %d",
get_highest_prec (image));
return GST_FLOW_NOT_NEGOTIATED;
}
} else {
GST_ERROR_OBJECT (self, "Unsupported number of YUV components: %d",
image->numcomps);
return GST_FLOW_NOT_NEGOTIATED;
}
break;
default:
GST_ERROR_OBJECT (self, "Unsupported colorspace %d", image->color_space);
return GST_FLOW_NOT_NEGOTIATED;
}
if (!self->output_state ||
self->output_state->info.finfo->format != format ||
self->output_state->info.width != self->input_state->info.width ||
self->output_state->info.height != self->input_state->info.height) {
if (self->output_state)
gst_video_codec_state_unref (self->output_state);
self->output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self), format,
self->input_state->info.width, self->input_state->info.height,
self->input_state);
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self)))
return GST_FLOW_NOT_NEGOTIATED;
}
return GST_FLOW_OK;
}
static void
gst_openjpeg_dec_opj_error (const char *msg, void *userdata)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (userdata);
gchar *trimmed = g_strchomp (g_strdup (msg));
GST_TRACE_OBJECT (self, "openjpeg error: %s", trimmed);
g_free (trimmed);
}
static void
gst_openjpeg_dec_opj_warning (const char *msg, void *userdata)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (userdata);
gchar *trimmed = g_strchomp (g_strdup (msg));
GST_TRACE_OBJECT (self, "openjpeg warning: %s", trimmed);
g_free (trimmed);
}
static void
gst_openjpeg_dec_opj_info (const char *msg, void *userdata)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (userdata);
gchar *trimmed = g_strchomp (g_strdup (msg));
GST_TRACE_OBJECT (self, "openjpeg info: %s", trimmed);
g_free (trimmed);
}
typedef struct
{
guint8 *data;
guint offset, size;
} MemStream;
static OPJ_SIZE_T
read_fn (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
{
MemStream *mstream = p_user_data;
OPJ_SIZE_T read;
if (mstream->offset == mstream->size)
return -1;
if (mstream->offset + p_nb_bytes > mstream->size)
read = mstream->size - mstream->offset;
else
read = p_nb_bytes;
memcpy (p_buffer, mstream->data + mstream->offset, read);
mstream->offset += read;
return read;
}
static OPJ_SIZE_T
write_fn (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
{
g_return_val_if_reached (-1);
}
static OPJ_OFF_T
skip_fn (OPJ_OFF_T p_nb_bytes, void *p_user_data)
{
MemStream *mstream = p_user_data;
OPJ_OFF_T skip;
if (mstream->offset + p_nb_bytes > mstream->size)
skip = mstream->size - mstream->offset;
else
skip = p_nb_bytes;
mstream->offset += skip;
return skip;
}
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 gboolean
gst_openjpeg_dec_is_last_input_subframe (GstVideoDecoder * dec,
GstOpenJPEGCodecMessage * message)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (dec);
return (message->last_subframe || message->stripe == self->num_stripes);
}
static gboolean
gst_openjpeg_dec_is_last_output_subframe (GstVideoDecoder * dec,
GstOpenJPEGCodecMessage * message)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (dec);
return (gst_video_decoder_get_processed_subframe_index (dec,
message->frame) == (self->num_stripes - 1));
}
static gboolean
gst_openjpeg_dec_has_pending_job_to_finish (GstOpenJPEGDec * self)
{
gboolean res = FALSE;
if (self->downstream_flow_ret != GST_FLOW_OK)
return res;
g_mutex_lock (&self->messages_lock);
res = (!g_queue_is_empty (&self->messages)
|| (self->available_threads < self->max_slice_threads));
g_mutex_unlock (&self->messages_lock);
return res;
}
static GstOpenJPEGCodecMessage *
gst_openjpeg_decode_message_new (GstOpenJPEGDec * self,
GstVideoCodecFrame * frame, int num_stripe)
{
GstOpenJPEGCodecMessage *message = g_new0 (GstOpenJPEGCodecMessage, 1);
GST_DEBUG_OBJECT (self, "message: %p", message);
message->frame = gst_video_codec_frame_ref (frame);
message->stripe = num_stripe;
message->last_error = OPENJPEG_ERROR_NONE;
message->input_buffer = gst_buffer_ref (frame->input_buffer);
message->last_subframe = GST_BUFFER_FLAG_IS_SET (frame->input_buffer,
GST_BUFFER_FLAG_MARKER);
return message;
}
static GstOpenJPEGCodecMessage *
gst_openjpeg_decode_message_free (GstOpenJPEGDec * self,
GstOpenJPEGCodecMessage * message)
{
if (!message)
return message;
gst_buffer_unref (message->input_buffer);
gst_video_codec_frame_unref (message->frame);
GST_DEBUG_OBJECT (self, "message: %p", message);
g_free (message);
return NULL;
}
static GstOpenJPEGCodecMessage *
gst_openjpeg_dec_wait_for_new_message (GstOpenJPEGDec * self, gboolean dry_run)
{
GstOpenJPEGCodecMessage *message = NULL;
g_mutex_lock (&self->messages_lock);
if (dry_run && self->available_threads == self->max_slice_threads)
goto done;
if (!g_queue_is_empty (&self->messages) && !dry_run) {
message = g_queue_pop_head (&self->messages);
} else {
g_cond_wait (&self->messages_cond, &self->messages_lock);
}
done:
g_mutex_unlock (&self->messages_lock);
return message;
}
static void
gst_openjpeg_dec_pause_loop (GstOpenJPEGDec * self, GstFlowReturn flow_ret)
{
g_mutex_lock (&self->drain_lock);
GST_DEBUG_OBJECT (self, "Pause the loop draining %d flow_ret %s",
self->draining, gst_flow_get_name (flow_ret));
if (self->draining) {
self->draining = FALSE;
g_cond_broadcast (&self->drain_cond);
}
gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self));
self->downstream_flow_ret = flow_ret;
self->started = FALSE;
g_mutex_unlock (&self->drain_lock);
}
static void
gst_openjpeg_dec_loop (GstOpenJPEGDec * self)
{
GstOpenJPEGCodecMessage *message;
GstVideoDecoder *decoder = GST_VIDEO_DECODER (self);
GstFlowReturn flow_ret = GST_FLOW_OK;
message = gst_openjpeg_dec_wait_for_new_message (self, FALSE);
if (message) {
GST_DEBUG_OBJECT (self,
"received message for frame %p stripe %d last_error %d threads %d",
message->frame, message->stripe, message->last_error,
self->available_threads);
if (self->flushing)
goto flushing;
if (message->last_error != OPENJPEG_ERROR_NONE)
goto decode_error;
g_mutex_lock (&self->decoding_lock);
if (gst_openjpeg_dec_is_last_output_subframe (decoder, message))
flow_ret = gst_video_decoder_finish_frame (decoder, message->frame);
else
gst_video_decoder_finish_subframe (decoder, message->frame);
g_mutex_unlock (&self->decoding_lock);
message = gst_openjpeg_decode_message_free (self, message);
g_cond_broadcast (&self->messages_cond);
}
if (flow_ret != GST_FLOW_OK)
goto flow_error;
if (self->draining && !gst_openjpeg_dec_has_pending_job_to_finish (self))
gst_openjpeg_dec_pause_loop (self, GST_FLOW_OK);
if (self->flushing)
goto flushing;
return;
decode_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
("OPEN JPEG decode fail %d", message->last_error));
gst_video_codec_frame_unref (message->frame);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ());
gst_openjpeg_dec_pause_loop (self, GST_FLOW_ERROR);
gst_openjpeg_decode_message_free (self, message);
return;
}
flushing:
{
GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
if (message) {
gst_video_codec_frame_unref (message->frame);
gst_openjpeg_decode_message_free (self, message);
}
gst_openjpeg_dec_pause_loop (self, GST_FLOW_FLUSHING);
return;
}
flow_error:
{
if (flow_ret == GST_FLOW_EOS) {
GST_DEBUG_OBJECT (self, "EOS");
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self),
gst_event_new_eos ());
} else if (flow_ret < GST_FLOW_EOS) {
GST_ELEMENT_ERROR (self, STREAM, FAILED,
("Internal data stream error."), ("stream stopped, reason %s",
gst_flow_get_name (flow_ret)));
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self),
gst_event_new_eos ());
} else if (flow_ret == GST_FLOW_FLUSHING) {
GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
}
gst_openjpeg_dec_pause_loop (self, flow_ret);
return;
}
}
#define DECODE_ERROR(self, message, err_code, mutex_unlock) { \
GST_WARNING_OBJECT(self, "An error occurred err_code=%d", err_code);\
message->last_error = err_code; \
if (mutex_unlock) \
g_mutex_unlock (&self->decoding_lock);\
goto done; \
}
static void
gst_openjpeg_dec_decode_stripe (GstElement * element, gpointer user_data)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (element);
GstVideoDecoder *decoder = GST_VIDEO_DECODER (element);
GstOpenJPEGCodecMessage *message = (GstOpenJPEGCodecMessage *) user_data;
GstMapInfo map;
GstVideoFrame vframe;
opj_codec_t *dec = NULL;
opj_stream_t *stream = NULL;
MemStream mstream;
opj_image_t *image = NULL;
opj_dparameters_t params;
gint max_threads;
GstFlowReturn ret;
gint i;
GST_DEBUG_OBJECT (self, "Start to decode stripe %p %d", message->frame,
message->stripe);
dec = opj_create_decompress (self->codec_format);
if (!dec)
DECODE_ERROR (self, message, OPENJPEG_ERROR_INIT, FALSE);
if (G_UNLIKELY (gst_debug_category_get_threshold (GST_CAT_DEFAULT) >=
GST_LEVEL_TRACE)) {
opj_set_info_handler (dec, gst_openjpeg_dec_opj_info, self);
opj_set_warning_handler (dec, gst_openjpeg_dec_opj_warning, self);
opj_set_error_handler (dec, gst_openjpeg_dec_opj_error, self);
} else {
opj_set_info_handler (dec, NULL, NULL);
opj_set_warning_handler (dec, NULL, NULL);
opj_set_error_handler (dec, NULL, NULL);
}
params = self->params;
if (self->ncomps)
params.jpwl_exp_comps = self->ncomps;
if (!opj_setup_decoder (dec, &params))
DECODE_ERROR (self, message, OPENJPEG_ERROR_OPEN, FALSE);
max_threads = g_atomic_int_get (&self->max_threads);
if (max_threads > self->num_procs)
max_threads = self->num_procs;
if (!opj_codec_set_threads (dec, max_threads))
GST_WARNING_OBJECT (self, "Failed to set %d number of threads",
max_threads);
if (!gst_buffer_map (message->input_buffer, &map, GST_MAP_READ))
DECODE_ERROR (self, message, OPENJPEG_ERROR_MAP_READ, FALSE);
if (self->is_jp2c && map.size < 8)
DECODE_ERROR (self, message, OPENJPEG_ERROR_MAP_READ, FALSE);
stream = opj_stream_create (4096, OPJ_TRUE);
if (!stream)
DECODE_ERROR (self, message, OPENJPEG_ERROR_OPEN, FALSE);
mstream.data = map.data + (self->is_jp2c ? 8 : 0);
mstream.offset = 0;
mstream.size = map.size - (self->is_jp2c ? 8 : 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);
image = NULL;
if (!opj_read_header (stream, dec, &image))
DECODE_ERROR (self, message, OPENJPEG_ERROR_DECODE, FALSE);
if (!opj_decode (dec, stream, image))
DECODE_ERROR (self, message, OPENJPEG_ERROR_DECODE, FALSE);
for (i = 0; i < image->numcomps; i++) {
if (image->comps[i].data == NULL)
DECODE_ERROR (self, message, OPENJPEG_ERROR_DECODE, FALSE);
}
gst_buffer_unmap (message->input_buffer, &map);
g_mutex_lock (&self->decoding_lock);
ret = gst_openjpeg_dec_negotiate (self, image);
if (ret != GST_FLOW_OK)
DECODE_ERROR (self, message, OPENJPEG_ERROR_NEGOCIATE, TRUE);
if (message->frame->output_buffer == NULL) {
ret = gst_video_decoder_allocate_output_frame (decoder, message->frame);
if (ret != GST_FLOW_OK)
DECODE_ERROR (self, message, OPENJPEG_ERROR_ALLOCATE, TRUE);
}
if (!gst_video_frame_map (&vframe, &self->output_state->info,
message->frame->output_buffer, GST_MAP_WRITE))
DECODE_ERROR (self, message, OPENJPEG_ERROR_MAP_WRITE, TRUE);
if (message->stripe)
self->fill_frame (self, &vframe, image);
else {
GST_ERROR_OBJECT (decoder, " current_stripe should be greater than 0");
DECODE_ERROR (self, message, OPENJPEG_ERROR_MAP_WRITE, TRUE);
}
gst_video_frame_unmap (&vframe);
g_mutex_unlock (&self->decoding_lock);
message->last_error = OPENJPEG_ERROR_NONE;
GST_DEBUG_OBJECT (self, "Finished to decode stripe message=%p stripe=%d",
message->frame, message->stripe);
done:
if (!message->direct) {
g_mutex_lock (&self->messages_lock);
self->available_threads++;
g_queue_push_tail (&self->messages, message);
g_mutex_unlock (&self->messages_lock);
g_cond_broadcast (&self->messages_cond);
}
if (stream) {
opj_end_decompress (dec, stream);
opj_stream_destroy (stream);
}
if (image)
opj_image_destroy (image);
if (dec)
opj_destroy_codec (dec);
}
static GstFlowReturn
gst_openjpeg_dec_decode_frame_multiple (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GstOpenJPEGCodecMessage *message = NULL;
guint current_stripe =
gst_video_decoder_get_input_subframe_index (decoder, frame);
if (!self->started) {
GST_DEBUG_OBJECT (self, "Starting task");
gst_pad_start_task (GST_VIDEO_DECODER_SRC_PAD (self),
(GstTaskFunction) gst_openjpeg_dec_loop, decoder, NULL);
self->started = TRUE;
}
/* Make sure to release the base class stream lock, otherwise
* _loop() can't call _finish_frame() and we might block forever
* because no input buffers are released */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
while (!self->available_threads)
gst_openjpeg_dec_wait_for_new_message (self, TRUE);
GST_VIDEO_DECODER_STREAM_LOCK (self);
if (self->downstream_flow_ret != GST_FLOW_OK)
return self->downstream_flow_ret;
g_mutex_lock (&self->messages_lock);
message = gst_openjpeg_decode_message_new (self, frame, current_stripe);
GST_LOG_OBJECT (self,
"About to enqueue a decoding message from frame %p stripe %d", frame,
message->stripe);
if (self->available_threads)
self->available_threads--;
g_mutex_unlock (&self->messages_lock);
gst_element_call_async (GST_ELEMENT (self),
(GstElementCallAsyncFunc) gst_openjpeg_dec_decode_stripe, message, NULL);
if (gst_video_decoder_get_subframe_mode (decoder)
&& gst_openjpeg_dec_is_last_input_subframe (decoder, message))
gst_video_decoder_have_last_subframe (decoder, frame);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_openjpeg_dec_decode_frame_single (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GstOpenJPEGCodecMessage *message = NULL;
guint current_stripe =
gst_video_decoder_get_input_subframe_index (decoder, frame);
GstFlowReturn ret = GST_FLOW_OK;
message = gst_openjpeg_decode_message_new (self, frame, current_stripe);
message->direct = TRUE;
gst_openjpeg_dec_decode_stripe (GST_ELEMENT (decoder), message);
if (message->last_error != OPENJPEG_ERROR_NONE) {
GST_WARNING_OBJECT
(self, "An error occured %d during the JPEG decoding",
message->last_error);
self->last_error = message->last_error;
ret = GST_FLOW_ERROR;
goto done;
}
if (gst_openjpeg_dec_is_last_output_subframe (decoder, message))
ret = gst_video_decoder_finish_frame (decoder, message->frame);
else
gst_video_decoder_finish_subframe (decoder, message->frame);
done:
gst_openjpeg_decode_message_free (self, message);
return ret;
}
static gboolean
gst_openjpeg_dec_flush (GstVideoDecoder * decoder)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GST_DEBUG_OBJECT (self, "Flushing decoder");
/* 2) Wait until the srcpad loop is stopped,
* unlock GST_VIDEO_DECODER_STREAM_LOCK to prevent deadlocks
* caused by using this lock from inside the loop function */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (decoder));
GST_DEBUG_OBJECT (self, "Flushing -- task stopped");
GST_VIDEO_DECODER_STREAM_LOCK (self);
/* Reset our state */
self->started = FALSE;
GST_DEBUG_OBJECT (self, "Flush finished");
return TRUE;
}
static GstFlowReturn
gst_openjpeg_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GstFlowReturn ret = GST_FLOW_OK;
gint64 deadline;
guint current_stripe =
gst_video_decoder_get_input_subframe_index (decoder, frame);
if (self->downstream_flow_ret != GST_FLOW_OK) {
gst_video_codec_frame_unref (frame);
return self->downstream_flow_ret;
}
GST_DEBUG_OBJECT (self, "Handling frame with current stripe %d",
current_stripe);
deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
if (self->drop_subframes || deadline < 0) {
GST_INFO_OBJECT (self,
"Dropping too late frame: deadline %" G_GINT64_FORMAT, deadline);
self->drop_subframes = TRUE;
if (current_stripe == self->num_stripes ||
GST_BUFFER_FLAG_IS_SET (frame->input_buffer, GST_BUFFER_FLAG_MARKER)) {
ret = gst_video_decoder_drop_frame (decoder, frame);
self->drop_subframes = FALSE;
} else {
gst_video_decoder_drop_subframe (decoder, frame);
}
goto done;
}
ret = self->decode_frame (decoder, frame);
if (ret != GST_FLOW_OK) {
GST_WARNING_OBJECT (self, "Unable to decode the frame with flow error: %s",
gst_flow_get_name (ret));
goto error;
}
done:
return ret;
error:
switch (self->last_error) {
case OPENJPEG_ERROR_INIT:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize OpenJPEG decoder"), (NULL));
break;
case OPENJPEG_ERROR_MAP_READ:
GST_ELEMENT_ERROR (self, CORE, FAILED,
("Failed to map input buffer"), (NULL));
break;
case OPENJPEG_ERROR_MAP_WRITE:
GST_ELEMENT_ERROR (self, CORE, FAILED,
("Failed to map input buffer"), (NULL));
break;
case OPENJPEG_ERROR_FILL_IMAGE:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to fill OpenJPEG image"), (NULL));
break;
case OPENJPEG_ERROR_OPEN:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to open OpenJPEG data"), (NULL));
break;
case OPENJPEG_ERROR_DECODE:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to decode OpenJPEG data"), (NULL));
break;
case OPENJPEG_ERROR_NEGOCIATE:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to negociate OpenJPEG data"), (NULL));
break;
case OPENJPEG_ERROR_ALLOCATE:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to allocate OpenJPEG data"), (NULL));
break;
default:
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to encode OpenJPEG data"), (NULL));
break;
}
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_openjpeg_dec_finish (GstVideoDecoder * decoder)
{
GstOpenJPEGDec *self = GST_OPENJPEG_DEC (decoder);
GST_DEBUG_OBJECT (self, "Draining component");
if (!self->started) {
GST_DEBUG_OBJECT (self, "Component not started yet");
return GST_FLOW_OK;
}
self->draining = TRUE;
if (!gst_openjpeg_dec_has_pending_job_to_finish (self)) {
GST_DEBUG_OBJECT (self, "Component ready");
g_cond_broadcast (&self->messages_cond);
return GST_FLOW_OK;
}
/* Make sure to release the base class stream lock, otherwise
* _loop() can't call _finish_frame() and we might block forever
* because no input buffers are released */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
g_mutex_lock (&self->drain_lock);
GST_DEBUG_OBJECT (self, "Waiting until component is drained");
while (self->draining)
g_cond_wait (&self->drain_cond, &self->drain_lock);
GST_DEBUG_OBJECT (self, "Drained component");
g_mutex_unlock (&self->drain_lock);
GST_VIDEO_DECODER_STREAM_LOCK (self);
self->started = FALSE;
return GST_FLOW_OK;
}
static gboolean
gst_openjpeg_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstBufferPool *pool;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
g_assert (gst_query_get_n_allocation_pools (query) > 0);
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
g_assert (pool != NULL);
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
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