/* GStreamer * Copyright (C) <2014> Stian Selnes <stian@pexip.com> * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * * Author: Dejan Sakelsak sahel@kiberpipa.org */ #ifndef __GST_RTP_H261_PAY_H__ #define __GST_RTP_H261_PAY_H__ #include <gst/gst.h> #include <gst/rtp/gstrtpbasepayload.h> #include <gst/base/gstadapter.h> G_BEGIN_DECLS #define GST_TYPE_RTP_H261_PAY \ (gst_rtp_h261_pay_get_type()) #define GST_RTP_H261_PAY(obj) \ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H261_PAY,GstRtpH261Pay)) #define GST_RTP_H261_PAY_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H261_PAY,GstRtpH261PayClass)) #define GST_IS_RTP_H261_PAY(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H261_PAY)) #define GST_IS_RTP_H261_PAY_CLASS(klass) \ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H261_PAY)) typedef struct _GstRtpH261PayClass GstRtpH261PayClass; typedef struct _GstRtpH261Pay GstRtpH261Pay; struct _GstRtpH261Pay { GstRTPBasePayload payload; GstAdapter *adapter; gint offset; GstClockTime timestamp; }; struct _GstRtpH261PayClass { GstRTPBasePayloadClass parent_class; }; typedef struct _GstRtpH261PayHeader { #if G_BYTE_ORDER == G_LITTLE_ENDIAN unsigned int v:1; /* Motion vector flag */ unsigned int i:1; /* Intra encoded data */ unsigned int ebit:3; /* End position */ unsigned int sbit:3; /* Start position */ unsigned int mbap1:4; /* MB address predictor - part1 */ unsigned int gobn:4; /* GOB number */ unsigned int hmvd1:2; /* Horizontal motion vector data - part1 */ unsigned int quant:5; /* Quantizer */ unsigned int mbap2:1; /* MB address predictor - part2 */ unsigned int vmvd:5; /* Horizontal motion vector data - part1 */ unsigned int hmvd2:3; /* Vertical motion vector data */ #elif G_BYTE_ORDER == G_BIG_ENDIAN unsigned int sbit:3; /* Start position */ unsigned int ebit:3; /* End position */ unsigned int i:1; /* Intra encoded data */ unsigned int v:1; /* Motion vector flag */ unsigned int gobn:4; /* GOB number */ unsigned int mbap1:4; /* MB address predictor - part1 */ unsigned int mbap2:1; /* MB address predictor - part2 */ unsigned int quant:5; /* Quantizer */ unsigned int hmvd1:2; /* Horizontal motion vector data - part1 */ unsigned int hmvd2:3; /* Vertical motion vector data */ unsigned int vmvd:5; /* Horizontal motion vector data - part1 */ #else #error "G_BYTE_ORDER should be big or little endian." #endif } GstRtpH261PayHeader; #define GST_RTP_H261_PAYLOAD_HEADER_LEN 4 GType gst_rtp_h261_pay_get_type (void); G_END_DECLS #endif /* __GST_RTP_H261_PAY_H__ */