1 /* GStreamer 2 * Copyright (C) <2009> Edward Hervey <bilboed@bilboed.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __GST_RTP_QDM2_DEPAY_H__ 21 #define __GST_RTP_QDM2_DEPAY_H__ 22 23 #include <gst/gst.h> 24 #include <gst/base/gstadapter.h> 25 #include <gst/rtp/gstrtpbasedepayload.h> 26 27 G_BEGIN_DECLS 28 29 #define GST_TYPE_RTP_QDM2_DEPAY \ 30 (gst_rtp_qdm2_depay_get_type()) 31 #define GST_RTP_QDM2_DEPAY(obj) \ 32 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_QDM2_DEPAY,GstRtpQDM2Depay)) 33 #define GST_RTP_QDM2_DEPAY_CLASS(klass) \ 34 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_QDM2_DEPAY,GstRtpQDM2DepayClass)) 35 #define GST_IS_RTP_QDM2_DEPAY(obj) \ 36 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_QDM2_DEPAY)) 37 #define GST_IS_RTP_QDM2_DEPAY_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_QDM2_DEPAY)) 39 40 typedef struct _GstRtpQDM2Depay GstRtpQDM2Depay; 41 typedef struct _GstRtpQDM2DepayClass GstRtpQDM2DepayClass; 42 43 typedef struct _QDM2Packet { 44 guint8* data; 45 guint offs; /* Starts at 4 to give room for the prefix */ 46 } QDM2Packet; 47 48 #define MAX_SCRAMBLED_PACKETS 64 49 50 struct _GstRtpQDM2Depay 51 { 52 GstRTPBaseDepayload depayload; 53 54 GstAdapter *adapter; 55 56 guint16 nextseq; 57 gboolean configured; 58 59 GstClockTime timestamp; /* Timestamp of current incoming data */ 60 GstClockTime ptimestamp; /* Timestamp of data stored in the adapter */ 61 62 guint32 channs; 63 guint32 samplerate; 64 guint32 bitrate; 65 guint32 blocksize; 66 guint32 framesize; 67 guint32 packetsize; 68 69 guint nbpackets; /* Number of packets to unscramble */ 70 71 QDM2Packet *packets[MAX_SCRAMBLED_PACKETS]; 72 }; 73 74 struct _GstRtpQDM2DepayClass 75 { 76 GstRTPBaseDepayloadClass parent_class; 77 }; 78 79 GType gst_rtp_qdm2_depay_get_type (void); 80 81 gboolean gst_rtp_qdm2_depay_plugin_init (GstPlugin * plugin); 82 83 G_END_DECLS 84 85 #endif /* __GST_RTP_QDM2_DEPAY_H__ */ 86