/* GStreamer
* Copyright (C) <2005> Wim Taymans <wim.taymans@gmail.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Author: Dejan Sakelsak sahel@kiberpipa.org
*/
#ifndef __GST_RTP_H263_PAY_H__
#define __GST_RTP_H263_PAY_H__
#include <gst/gst.h>
#include <gst/rtp/gstrtpbasepayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_H263_PAY \
(gst_rtp_h263_pay_get_type())
#define GST_RTP_H263_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H263_PAY,GstRtpH263Pay))
#define GST_RTP_H263_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H263_PAY,GstRtpH263PayClass))
#define GST_IS_RTP_H263_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H263_PAY))
#define GST_IS_RTP_H263_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H263_PAY))
// blocks per macroblock
#define N_BLOCKS 6
#define DEFAULT_MODE_A FALSE
#define MTU_SECURITY_OFFSET 50
typedef enum _GstRtpH263PayHeaderMode
{
GST_RTP_H263_PAYLOAD_HEADER_MODE_A = 4,
GST_RTP_H263_PAYLOAD_HEADER_MODE_B = 8,
GST_RTP_H263_PAYLOAD_HEADER_MODE_C = 12
} GstRtpH263PayHeaderMode;
typedef struct _GstRtpH263PayContext GstRtpH263PayContext;
typedef struct _GstRtpH263PayPic GstRtpH263PayPic;
typedef struct _GstRtpH263PayClass GstRtpH263PayClass;
typedef struct _GstRtpH263Pay GstRtpH263Pay;
typedef struct _GstRtpH263PayBoundry GstRtpH263PayBoundry;
typedef struct _GstRtpH263PayMB GstRtpH263PayMB;
typedef struct _GstRtpH263PayGob GstRtpH263PayGob;
typedef struct _GstRtpH263PayPackage GstRtpH263PayPackage;
//typedef enum _GstRtpH263PayHeaderMode GstRtpH263PayHeaderMode;
struct _GstRtpH263Pay
{
GstRTPBasePayload payload;
GstBuffer *current_buffer;
GstMapInfo map;
GstClockTime first_ts;
gboolean prop_payload_mode;
guint8 *data;
guint available_data;
};
struct _GstRtpH263PayContext
{
GstRtpH263PayPic *piclayer;
guint mtu;
guint window;
guint8 *win_end;
guint8 cpm;
guint no_gobs;
GstRtpH263PayGob **gobs;
};
struct _GstRtpH263PayClass
{
GstRTPBasePayloadClass parent_class;
};
typedef struct _GstRtpH263PayAHeader
{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned int ebit:3; /* End position */
unsigned int sbit:3; /* Start position */
unsigned int p:1; /* PB-frames mode */
unsigned int f:1; /* flag bit */
unsigned int r1:1; /* Reserved */
unsigned int a:1; /* Advanced Prediction */
unsigned int s:1; /* syntax based arithmetic coding */
unsigned int u:1; /* Unrestricted motion vector */
unsigned int i:1; /* Picture coding type */
unsigned int src:3; /* Source format */
unsigned int trb:3; /* Temporal ref for B frame */
unsigned int dbq:2; /* Differential Quantisation parameter */
unsigned int r2:3; /* Reserved */
#elif G_BYTE_ORDER == G_BIG_ENDIAN
unsigned int f:1; /* flag bit */
unsigned int p:1; /* PB-frames mode */
unsigned int sbit:3; /* Start position */
unsigned int ebit:3; /* End position */
unsigned int src:3; /* Source format */
unsigned int i:1; /* Picture coding type */
unsigned int u:1; /* Unrestricted motion vector */
unsigned int s:1; /* syntax based arithmetic coding */
unsigned int a:1; /* Advanced Prediction */
unsigned int r1:1; /* Reserved */
unsigned int r2:3; /* Reserved */
unsigned int dbq:2; /* Differential Quantisation parameter */
unsigned int trb:3; /* Temporal ref for B frame */
#else
#error "G_BYTE_ORDER should be big or little endian."
#endif
unsigned int tr:8; /* Temporal ref for P frame */
} GstRtpH263PayAHeader;
typedef struct _GstRtpH263PayBHeader
{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned int ebit:3; /* End position */
unsigned int sbit:3; /* Start position */
unsigned int p:1; /* PB-frames mode */
unsigned int f:1; /* flag bit */
unsigned int quant:5; /* Quantization value for first MB */
unsigned int src:3; /* Source format */
unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
unsigned int gobn:5; /* GOB number in effect at start of packet */
unsigned int r:2; /* Reserved */
unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
unsigned int a:1; /* Advanced Prediction */
unsigned int s:1; /* syntax based arithmetic coding */
unsigned int u:1; /* Unrestricted motion vector */
unsigned int i:1; /* Picture coding type */
unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
#elif G_BYTE_ORDER == G_BIG_ENDIAN
unsigned int f:1; /* flag bit */
unsigned int p:1; /* PB-frames mode */
unsigned int sbit:3; /* Start position */
unsigned int ebit:3; /* End position */
unsigned int src:3; /* Source format */
unsigned int quant:5; /* Quantization value for first MB */
unsigned int gobn:5; /* GOB number in effect at start of packet */
unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
unsigned int r:2; /* Reserved */
unsigned int i:1; /* Picture coding type */
unsigned int u:1; /* Unrestricted motion vector */
unsigned int s:1; /* syntax based arithmetic coding */
unsigned int a:1; /* Advanced Prediction */
unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
#else
#error "G_BYTE_ORDER should be big or little endian."
#endif
} GstRtpH263PayBHeader;
typedef struct _GstRtpH263PayCHeader
{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned int ebit:3; /* End position */
unsigned int sbit:3; /* Start position */
unsigned int p:1; /* PB-frames mode */
unsigned int f:1; /* flag bit */
unsigned int quant:5; /* Quantization value for first MB */
unsigned int src:3; /* Source format */
unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
unsigned int gobn:5; /* GOB number in effect at start of packet */
unsigned int r:2; /* Reserved */
unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
unsigned int a:1; /* Advanced Prediction */
unsigned int s:1; /* syntax based arithmetic coding */
unsigned int u:1; /* Unrestricted motion vector */
unsigned int i:1; /* Picture coding type */
unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
unsigned int rr1:8; /* reserved */
unsigned int rr2:8; /* reserved */
unsigned int trb:3; /* Temporal Reference for the B */
unsigned int dbq:2; /* Differential quantization parameter */
unsigned int rr3:3; /* reserved */
unsigned int tr:8; /* Temporal Reference for the P frame */
#elif G_BYTE_ORDER == G_BIG_ENDIAN
unsigned int f:1; /* flag bit */
unsigned int p:1; /* PB-frames mode */
unsigned int sbit:3; /* Start position */
unsigned int ebit:3; /* End position */
unsigned int src:3; /* Source format */
unsigned int quant:5; /* Quantization value for first MB */
unsigned int gobn:5; /* GOB number in effect at start of packet */
unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
unsigned int r:2; /* Reserved */
unsigned int i:1; /* Picture coding type */
unsigned int u:1; /* Unrestricted motion vector */
unsigned int s:1; /* syntax based arithmetic coding */
unsigned int a:1; /* Advanced Prediction */
unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
unsigned int rr1:8; /* reserved */
unsigned int rr2:8; /* reserved */
unsigned int rr3:3; /* reserved */
unsigned int dbq:2; /* Differential quantization parameter */
unsigned int trb:3; /* Temporal Reference for the B */
unsigned int tr:8; /* Temporal Reference for the P frame */
#else
#error "G_BYTE_ORDER should be big or little endian."
#endif
} GstRtpH263PayCHeader;
struct _GstRtpH263PayPic
{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned int psc1:16;
unsigned int tr1:2;
unsigned int psc2:6;
unsigned int ptype_263:1;
unsigned int ptype_start:1;
unsigned int tr2:6;
unsigned int ptype_umvmode:1;
unsigned int ptype_pictype:1;
unsigned int ptype_srcformat:3;
unsigned int ptype_freeze:1;
unsigned int ptype_camera:1;
unsigned int ptype_split:1;
unsigned int pquant:5;
unsigned int ptype_pbmode:1;
unsigned int ptype_apmode:1;
unsigned int ptype_sacmode:1;
#elif G_BYTE_ORDER == G_BIG_ENDIAN
unsigned int psc1:16;
unsigned int psc2:6;
unsigned int tr1:2;
unsigned int tr2:6;
unsigned int ptype_start:2;
unsigned int ptype_split:1;
unsigned int ptype_camera:1;
unsigned int ptype_freeze:1;
unsigned int ptype_srcformat:3;
unsigned int ptype_pictype:1;
unsigned int ptype_umvmode:1;
unsigned int ptype_sacmode:1;
unsigned int ptype_apmode:1;
unsigned int ptype_pbmode:1;
unsigned int pquant:5;
#else
#error "G_BYTE_ORDER should be big or little endian."
#endif
};
struct _GstRtpH263PayBoundry
{
guint8 *start;
guint8 *end;
guint8 sbit;
guint8 ebit;
};
struct _GstRtpH263PayMB
{
guint8 *start;
guint8 *end;
guint8 sbit;
guint8 ebit;
guint length;
guint8 mb_type;
guint quant;
guint mba;
guint8 mvd[10];
};
struct _GstRtpH263PayGob
{
guint8 *start;
guint8 *end;
guint length;
guint8 sbit;
guint8 ebit;
guint gobn;
guint quant;
GstRtpH263PayMB **macroblocks;
guint nmacroblocs;
};
struct _GstRtpH263PayPackage
{
guint8 *payload_start;
guint8 *payload_end;
guint payload_len;
guint8 sbit;
guint8 ebit;
GstBuffer *outbuf;
gboolean marker;
GstRtpH263PayHeaderMode mode;
/*
* mode B,C data
*/
guint16 mba;
guint nmvd;
guint8 mvd[10];
guint gobn;
guint quant;
};
#define GST_H263_PICTURELAYER_PLSRC(buf) (((GstRtpH263PayPic *)(buf))->ptype_srcformat)
#define GST_H263_PICTURELAYER_PLTYPE(buf) (((GstRtpH263PayPic *)(buf))->ptype_pictype)
#define GST_H263_PICTURELAYER_PLUMV(buf) (((GstRtpH263PayPic *)(buf))->ptype_umvmode)
#define GST_H263_PICTURELAYER_PLSAC(buf) (((GstRtpH263PayPic *)(buf))->ptype_sacmode)
#define GST_H263_PICTURELAYER_PLAP(buf) (((GstRtpH263PayPic *)(buf))->ptype_apmode)
/*
* TODO: PB frame relevant tables
*/
#define GST_RTP_H263_PAY_END(start, len) (((guint8 *)start) + ((guint)len))
#define GST_RTP_H263_PAY_GOBN(gob) (((((guint8 *) gob)[2] >> 2) & 0x1f)
GType gst_rtp_h263_pay_get_type (void);
gboolean gst_rtp_h263_pay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_H263_PAY_H__ */