1 /* 2 * GStreamer 3 * Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com> 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 #ifndef __GST_VDP_MPEG_DEC_H__ 22 #define __GST_VDP_MPEG_DEC_H__ 23 24 #include <gst/gst.h> 25 #include <gst/base/gstadapter.h> 26 27 #include "../gstvdpdecoder.h" 28 29 G_BEGIN_DECLS 30 typedef struct _GstVdpMpegStreamInfo GstVdpMpegStreamInfo; 31 32 struct _GstVdpMpegStreamInfo 33 { 34 gint width, height; 35 gint fps_n, fps_d; 36 gint par_n, par_d; 37 gboolean interlaced; 38 gint version; 39 VdpDecoderProfile profile; 40 }; 41 42 #define GST_TYPE_VDP_MPEG_DEC (gst_vdp_mpeg_dec_get_type()) 43 #define GST_VDP_MPEG_DEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VDP_MPEG_DEC,GstVdpMpegDec)) 44 #define GST_VDP_MPEG_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VDP_MPEG_DEC,GstVdpMpegDecClass)) 45 #define GST_IS_VDP_MPEG_DEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VDP_MPEG_DEC)) 46 #define GST_IS_VDP_MPEG_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VDP_MPEG_DEC)) 47 48 typedef enum { 49 GST_VDP_MPEG_DEC_STATE_NEED_SEQUENCE, 50 GST_VDP_MPEG_DEC_STATE_NEED_GOP, 51 GST_VDP_MPEG_DEC_STATE_NEED_DATA 52 } GstVdpMpegDecState; 53 54 typedef struct _GstVdpMpegDec GstVdpMpegDec; 55 typedef struct _GstVdpMpegDecClass GstVdpMpegDecClass; 56 57 struct _GstVdpMpegDec 58 { 59 GstVdpDecoder vdp_decoder; 60 61 VdpDecoder decoder; 62 63 GstVdpMpegStreamInfo stream_info; 64 65 /* decoder state */ 66 GstVideoCodecState *input_state; 67 GstVideoCodecState *output_state; 68 GstVdpMpegDecState state; 69 gint prev_packet; 70 71 /* currently decoded frame info */ 72 VdpPictureInfoMPEG1Or2 vdp_info; 73 guint64 frame_nr; 74 75 /* frame_nr from GOP */ 76 guint64 gop_frame; 77 78 /* forward and backward reference */ 79 GstVideoCodecFrame *f_frame, *b_frame; 80 }; 81 82 struct _GstVdpMpegDecClass 83 { 84 GstVdpDecoderClass vdp_decoder_class; 85 }; 86 87 GType gst_vdp_mpeg_dec_get_type (void); 88 89 G_END_DECLS 90 91 #endif /* __GST_VDP_MPEG_DEC_H__ */ 92