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cd0c07e899
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
72 lines
2 KiB
C
72 lines
2 KiB
C
/*
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* Copyright (C) 2012 Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef __GST_OPENJPEG_ENC_H__
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#define __GST_OPENJPEG_ENC_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstopenjpeg.h"
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G_BEGIN_DECLS
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#define GST_TYPE_OPENJPEG_ENC \
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(gst_openjpeg_enc_get_type())
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#define GST_OPENJPEG_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENJPEG_ENC,GstOpenJPEGEnc))
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#define GST_OPENJPEG_ENC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENJPEG_ENC,GstOpenJPEGEncClass))
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#define GST_IS_OPENJPEG_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENJPEG_ENC))
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#define GST_IS_OPENJPEG_ENC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENJPEG_ENC))
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typedef struct _GstOpenJPEGEnc GstOpenJPEGEnc;
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typedef struct _GstOpenJPEGEncClass GstOpenJPEGEncClass;
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struct _GstOpenJPEGEnc
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{
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GstVideoEncoder parent;
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/* < private > */
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GstVideoCodecState *input_state;
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GstVideoCodecState *output_state;
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OPJ_CODEC_FORMAT codec_format;
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gboolean is_jp2c;
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void (*fill_image) (opj_image_t * image, GstVideoFrame *frame);
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opj_cparameters_t params;
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gint num_stripes;
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};
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struct _GstOpenJPEGEncClass
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{
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GstVideoEncoderClass parent_class;
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};
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GType gst_openjpeg_enc_get_type (void);
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G_END_DECLS
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#endif /* __GST_OPENJPEG_ENC_H__ */
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