mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-28 12:41:05 +00:00
414 lines
14 KiB
C
414 lines
14 KiB
C
/* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, 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/gstbasertppayload.h>
|
|
#include <gst/base/gstadapter.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
|
|
{
|
|
GstBaseRTPPayload payload;
|
|
|
|
GstAdapter *adapter;
|
|
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
|
|
{
|
|
GstBaseRTPPayloadClass 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__ */
|