mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-05 22:25:55 +00:00
8b0d11a0ee
We always pushed one buffer into the adapter, then handled exactly that one buffer and flushed it from the adapter. Now also don't memcpy() the actual payload but just attach the input buffer's data to the output buffer. This code still needs some serious refactoring/rewriting.
416 lines
14 KiB
C
416 lines
14 KiB
C
/* GStreamer
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* Copyright (C) <2005> Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* Author: Dejan Sakelsak sahel@kiberpipa.org
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*/
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#ifndef __GST_RTP_H263_PAY_H__
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#define __GST_RTP_H263_PAY_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbasepayload.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_H263_PAY \
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(gst_rtp_h263_pay_get_type())
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#define GST_RTP_H263_PAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H263_PAY,GstRtpH263Pay))
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#define GST_RTP_H263_PAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H263_PAY,GstRtpH263PayClass))
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#define GST_IS_RTP_H263_PAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H263_PAY))
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#define GST_IS_RTP_H263_PAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H263_PAY))
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// blocks per macroblock
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#define N_BLOCKS 6
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#define DEFAULT_MODE_A FALSE
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#define MTU_SECURITY_OFFSET 50
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typedef enum _GstRtpH263PayHeaderMode
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{
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GST_RTP_H263_PAYLOAD_HEADER_MODE_A = 4,
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GST_RTP_H263_PAYLOAD_HEADER_MODE_B = 8,
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GST_RTP_H263_PAYLOAD_HEADER_MODE_C = 12
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} GstRtpH263PayHeaderMode;
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typedef struct _GstRtpH263PayContext GstRtpH263PayContext;
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typedef struct _GstRtpH263PayPic GstRtpH263PayPic;
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typedef struct _GstRtpH263PayClass GstRtpH263PayClass;
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typedef struct _GstRtpH263Pay GstRtpH263Pay;
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typedef struct _GstRtpH263PayBoundry GstRtpH263PayBoundry;
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typedef struct _GstRtpH263PayMB GstRtpH263PayMB;
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typedef struct _GstRtpH263PayGob GstRtpH263PayGob;
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typedef struct _GstRtpH263PayPackage GstRtpH263PayPackage;
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//typedef enum _GstRtpH263PayHeaderMode GstRtpH263PayHeaderMode;
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struct _GstRtpH263Pay
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{
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GstRTPBasePayload payload;
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GstBuffer *current_buffer;
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GstMapInfo map;
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GstClockTime first_ts;
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gboolean prop_payload_mode;
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guint8 *data;
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guint available_data;
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};
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struct _GstRtpH263PayContext
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{
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GstRtpH263PayPic *piclayer;
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guint mtu;
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guint window;
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guint8 *win_end;
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guint8 cpm;
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guint no_gobs;
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GstRtpH263PayGob **gobs;
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};
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struct _GstRtpH263PayClass
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{
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GstRTPBasePayloadClass parent_class;
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};
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typedef struct _GstRtpH263PayAHeader
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{
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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unsigned int ebit:3; /* End position */
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unsigned int sbit:3; /* Start position */
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unsigned int p:1; /* PB-frames mode */
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unsigned int f:1; /* flag bit */
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unsigned int r1:1; /* Reserved */
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unsigned int a:1; /* Advanced Prediction */
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unsigned int s:1; /* syntax based arithmetic coding */
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unsigned int u:1; /* Unrestricted motion vector */
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unsigned int i:1; /* Picture coding type */
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unsigned int src:3; /* Source format */
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unsigned int trb:3; /* Temporal ref for B frame */
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unsigned int dbq:2; /* Differential Quantisation parameter */
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unsigned int r2:3; /* Reserved */
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#elif G_BYTE_ORDER == G_BIG_ENDIAN
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unsigned int f:1; /* flag bit */
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unsigned int p:1; /* PB-frames mode */
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unsigned int sbit:3; /* Start position */
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unsigned int ebit:3; /* End position */
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unsigned int src:3; /* Source format */
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unsigned int i:1; /* Picture coding type */
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unsigned int u:1; /* Unrestricted motion vector */
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unsigned int s:1; /* syntax based arithmetic coding */
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unsigned int a:1; /* Advanced Prediction */
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unsigned int r1:1; /* Reserved */
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unsigned int r2:3; /* Reserved */
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unsigned int dbq:2; /* Differential Quantisation parameter */
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unsigned int trb:3; /* Temporal ref for B frame */
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#else
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#error "G_BYTE_ORDER should be big or little endian."
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#endif
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unsigned int tr:8; /* Temporal ref for P frame */
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} GstRtpH263PayAHeader;
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typedef struct _GstRtpH263PayBHeader
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{
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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unsigned int ebit:3; /* End position */
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unsigned int sbit:3; /* Start position */
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unsigned int p:1; /* PB-frames mode */
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unsigned int f:1; /* flag bit */
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unsigned int quant:5; /* Quantization value for first MB */
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unsigned int src:3; /* Source format */
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unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
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unsigned int gobn:5; /* GOB number in effect at start of packet */
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unsigned int r:2; /* Reserved */
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unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
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unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
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unsigned int a:1; /* Advanced Prediction */
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unsigned int s:1; /* syntax based arithmetic coding */
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unsigned int u:1; /* Unrestricted motion vector */
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unsigned int i:1; /* Picture coding type */
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unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
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unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
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unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
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unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
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unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
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unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
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#elif G_BYTE_ORDER == G_BIG_ENDIAN
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unsigned int f:1; /* flag bit */
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unsigned int p:1; /* PB-frames mode */
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unsigned int sbit:3; /* Start position */
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unsigned int ebit:3; /* End position */
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unsigned int src:3; /* Source format */
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unsigned int quant:5; /* Quantization value for first MB */
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unsigned int gobn:5; /* GOB number in effect at start of packet */
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unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
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unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
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unsigned int r:2; /* Reserved */
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unsigned int i:1; /* Picture coding type */
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unsigned int u:1; /* Unrestricted motion vector */
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unsigned int s:1; /* syntax based arithmetic coding */
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unsigned int a:1; /* Advanced Prediction */
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unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
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unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
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unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
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unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
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unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
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unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
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unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
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#else
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#error "G_BYTE_ORDER should be big or little endian."
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#endif
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} GstRtpH263PayBHeader;
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typedef struct _GstRtpH263PayCHeader
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{
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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unsigned int ebit:3; /* End position */
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unsigned int sbit:3; /* Start position */
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unsigned int p:1; /* PB-frames mode */
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unsigned int f:1; /* flag bit */
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unsigned int quant:5; /* Quantization value for first MB */
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unsigned int src:3; /* Source format */
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unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
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unsigned int gobn:5; /* GOB number in effect at start of packet */
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unsigned int r:2; /* Reserved */
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unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
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unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
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unsigned int a:1; /* Advanced Prediction */
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unsigned int s:1; /* syntax based arithmetic coding */
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unsigned int u:1; /* Unrestricted motion vector */
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unsigned int i:1; /* Picture coding type */
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unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
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unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
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unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
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unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
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unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
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unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
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unsigned int rr1:8; /* reserved */
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unsigned int rr2:8; /* reserved */
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unsigned int trb:3; /* Temporal Reference for the B */
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unsigned int dbq:2; /* Differential quantization parameter */
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unsigned int rr3:3; /* reserved */
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unsigned int tr:8; /* Temporal Reference for the P frame */
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#elif G_BYTE_ORDER == G_BIG_ENDIAN
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unsigned int f:1; /* flag bit */
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unsigned int p:1; /* PB-frames mode */
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unsigned int sbit:3; /* Start position */
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unsigned int ebit:3; /* End position */
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unsigned int src:3; /* Source format */
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unsigned int quant:5; /* Quantization value for first MB */
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unsigned int gobn:5; /* GOB number in effect at start of packet */
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unsigned int mba1:3; /* Address of first MB starting count from 0 - part1 */
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unsigned int mba2:6; /* Address of first MB starting count from 0 - part2 */
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unsigned int r:2; /* Reserved */
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unsigned int i:1; /* Picture coding type */
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unsigned int u:1; /* Unrestricted motion vector */
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unsigned int s:1; /* syntax based arithmetic coding */
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unsigned int a:1; /* Advanced Prediction */
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unsigned int hmv11:4; /* horizontal motion vector predictor for MB 1 - part 1 */
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unsigned int hmv12:3; /* horizontal motion vector predictor for MB 1 - part 2 */
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unsigned int vmv11:5; /* vertical motion vector predictor for MB 1 - part 1 */
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unsigned int vmv12:2; /* vertical motion vector predictor for MB 1 - part 2 */
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unsigned int hmv21:6; /* horizontal motion vector predictor for MB 3 - part 1 */
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unsigned int hmv22:1; /* horizontal motion vector predictor for MB 3 - part 2 */
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unsigned int vmv21:7; /* vertical motion vector predictor for MB 3 */
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unsigned int rr1:8; /* reserved */
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unsigned int rr2:8; /* reserved */
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unsigned int rr3:3; /* reserved */
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unsigned int dbq:2; /* Differential quantization parameter */
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unsigned int trb:3; /* Temporal Reference for the B */
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unsigned int tr:8; /* Temporal Reference for the P frame */
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#else
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#error "G_BYTE_ORDER should be big or little endian."
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#endif
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} GstRtpH263PayCHeader;
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struct _GstRtpH263PayPic
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{
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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unsigned int psc1:16;
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unsigned int tr1:2;
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unsigned int psc2:6;
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unsigned int ptype_263:1;
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unsigned int ptype_start:1;
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unsigned int tr2:6;
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unsigned int ptype_umvmode:1;
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unsigned int ptype_pictype:1;
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unsigned int ptype_srcformat:3;
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unsigned int ptype_freeze:1;
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unsigned int ptype_camera:1;
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unsigned int ptype_split:1;
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unsigned int pquant:5;
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unsigned int ptype_pbmode:1;
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unsigned int ptype_apmode:1;
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unsigned int ptype_sacmode:1;
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#elif G_BYTE_ORDER == G_BIG_ENDIAN
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unsigned int psc1:16;
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unsigned int psc2:6;
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unsigned int tr1:2;
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unsigned int tr2:6;
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unsigned int ptype_start:2;
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unsigned int ptype_split:1;
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unsigned int ptype_camera:1;
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unsigned int ptype_freeze:1;
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unsigned int ptype_srcformat:3;
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unsigned int ptype_pictype:1;
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unsigned int ptype_umvmode:1;
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unsigned int ptype_sacmode:1;
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unsigned int ptype_apmode:1;
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unsigned int ptype_pbmode:1;
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unsigned int pquant:5;
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#else
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#error "G_BYTE_ORDER should be big or little endian."
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#endif
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};
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struct _GstRtpH263PayBoundry
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{
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guint8 *start;
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guint8 *end;
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guint8 sbit;
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guint8 ebit;
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};
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struct _GstRtpH263PayMB
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{
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guint8 *start;
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guint8 *end;
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guint8 sbit;
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guint8 ebit;
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guint length;
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guint8 mb_type;
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guint quant;
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guint mba;
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guint8 mvd[10];
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};
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struct _GstRtpH263PayGob
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{
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guint8 *start;
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guint8 *end;
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guint length;
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guint8 sbit;
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guint8 ebit;
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guint gobn;
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guint quant;
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GstRtpH263PayMB **macroblocks;
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guint nmacroblocs;
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};
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struct _GstRtpH263PayPackage
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{
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guint8 *payload_start;
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guint8 *payload_end;
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guint payload_len;
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guint8 sbit;
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guint8 ebit;
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GstBuffer *outbuf;
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gboolean marker;
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GstRtpH263PayHeaderMode mode;
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/*
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* mode B,C data
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*/
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guint16 mba;
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guint nmvd;
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guint8 mvd[10];
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guint gobn;
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guint quant;
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};
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#define GST_H263_PICTURELAYER_PLSRC(buf) (((GstRtpH263PayPic *)(buf))->ptype_srcformat)
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#define GST_H263_PICTURELAYER_PLTYPE(buf) (((GstRtpH263PayPic *)(buf))->ptype_pictype)
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#define GST_H263_PICTURELAYER_PLUMV(buf) (((GstRtpH263PayPic *)(buf))->ptype_umvmode)
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#define GST_H263_PICTURELAYER_PLSAC(buf) (((GstRtpH263PayPic *)(buf))->ptype_sacmode)
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#define GST_H263_PICTURELAYER_PLAP(buf) (((GstRtpH263PayPic *)(buf))->ptype_apmode)
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/*
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* TODO: PB frame relevant tables
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*/
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#define GST_RTP_H263_PAY_END(start, len) (((guint8 *)start) + ((guint)len))
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#define GST_RTP_H263_PAY_GOBN(gob) (((((guint8 *) gob)[2] >> 2) & 0x1f)
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GType gst_rtp_h263_pay_get_type (void);
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gboolean gst_rtp_h263_pay_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_RTP_H263_PAY_H__ */
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