1 /* 2 * Copyright (C) 2012 Collabora Ltd. 3 * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #ifndef __GST_OPENJPEG_DEC_H__ 23 #define __GST_OPENJPEG_DEC_H__ 24 25 #include <gst/gst.h> 26 #include <gst/video/video.h> 27 #include <gst/codecparsers/gstjpeg2000sampling.h> 28 29 #include "gstopenjpeg.h" 30 31 G_BEGIN_DECLS 32 33 #define GST_TYPE_OPENJPEG_DEC \ 34 (gst_openjpeg_dec_get_type()) 35 #define GST_OPENJPEG_DEC(obj) \ 36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENJPEG_DEC,GstOpenJPEGDec)) 37 #define GST_OPENJPEG_DEC_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENJPEG_DEC,GstOpenJPEGDecClass)) 39 #define GST_IS_OPENJPEG_DEC(obj) \ 40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENJPEG_DEC)) 41 #define GST_IS_OPENJPEG_DEC_CLASS(obj) \ 42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENJPEG_DEC)) 43 44 typedef struct _GstOpenJPEGDec GstOpenJPEGDec; 45 typedef struct _GstOpenJPEGDecClass GstOpenJPEGDecClass; 46 47 struct _GstOpenJPEGDec 48 { 49 GstVideoDecoder parent; 50 51 /* < private > */ 52 GstVideoCodecState *input_state; 53 GstVideoCodecState *output_state; 54 55 OPJ_CODEC_FORMAT codec_format; 56 gboolean is_jp2c; 57 OPJ_COLOR_SPACE color_space; 58 GstJPEG2000Sampling sampling; 59 gint ncomps; 60 gint max_threads; /* atomic */ 61 gint max_slice_threads; /* internal openjpeg threading system */ 62 gint num_procs; 63 gint num_stripes; 64 gboolean drop_subframes; 65 66 void (*fill_frame) (GstOpenJPEGDec *self, 67 GstVideoFrame *frame, opj_image_t * image); 68 69 gboolean (*decode_frame) (GstVideoDecoder * decoder, GstVideoCodecFrame *frame); 70 71 opj_dparameters_t params; 72 73 guint available_threads; 74 GQueue messages; 75 76 GCond messages_cond; 77 GMutex messages_lock; 78 GMutex decoding_lock; 79 GstFlowReturn downstream_flow_ret; 80 gboolean flushing; 81 82 /* Draining state */ 83 GMutex drain_lock; 84 GCond drain_cond; 85 /* TRUE if EOS buffers shouldn't be forwarded */ 86 gboolean draining; /* protected by drain_lock */ 87 88 int last_error; 89 90 gboolean started; 91 }; 92 93 struct _GstOpenJPEGDecClass 94 { 95 GstVideoDecoderClass parent_class; 96 }; 97 98 GType gst_openjpeg_dec_get_type (void); 99 100 GST_ELEMENT_REGISTER_DECLARE (openjpegdec); 101 102 G_END_DECLS 103 104 #endif /* __GST_OPENJPEG_DEC_H__ */ 105