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/* MPEG-PS muxer plugin for GStreamer
* Copyright 2008 Lin YANG <oxcsnicho@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.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __PSMUX_COMMON_H__
#define __PSMUX_COMMON_H__
#include <glib.h>
#include <gst/gst.h>
#include "bits.h" /* from VLC */
#undef PS_DEBUG_ON
G_BEGIN_DECLS
#define PSMUX_PACK_HDR_FREQ 30
#define PSMUX_SYS_HDR_FREQ 300
#define PSMUX_PSM_FREQ 300
#define PSMUX_PES_MAX_PAYLOAD 65500 /* from VLC */
#define PSMUX_PES_MAX_HDR_LEN 30
#define PSMUX_MAX_PACKET_LEN (PSMUX_PES_MAX_PAYLOAD + PSMUX_PES_MAX_HDR_LEN)
#define CLOCKBASE 90000
#define PSMUX_PACK_HDR_INTERVAL ( 0.7 * CLOCKBASE) /* interval to update pack header. 0.7 sec */
#define PSMUX_BITRATE_CALC_INTERVAL CLOCKBASE /* interval to update bitrate in pack header. 1 sec */
#define PSMUX_PES_BITRATE_DEFAULT 1000 /* Default bit_rate to write in the first pack header */
#define PSMUX_START_CODE_PREFIX 0x01
/* stream_id */
#define PSMUX_PACK_HEADER 0xba
#define PSMUX_SYSTEM_HEADER 0xbb
#define PSMUX_PROGRAM_STREAM_MAP 0xbc
#define PSMUX_PRIVATE_STREAM_1 0xbd
#define PSMUX_PADDING_STREAM 0xbe
#define PSMUX_PRIVATE_STREAM_2 0xbf
#define PSMUX_ECM 0xb0
#define PSMUX_EMM 0xb1
#define PSMUX_PROGRAM_STREAM_DIRECTORY 0xff
#define PSMUX_DSMCC_STREAM 0xf2
#define PSMUX_ITU_T_H222_1_TYPE_E 0xf8
#define PSMUX_EXTENDED_STREAM 0xfd
#define PSMUX_PROGRAM_END 0xb9
#define PSMUX_MIN_ES_DESC_LEN 8
/* Frequency for PCR representation */
#define PSMUX_SYS_CLOCK_FREQ (27000000L)
/* Frequency for PTS values */
#define PSMUX_CLOCK_FREQ (PSMUX_SYS_CLOCK_FREQ / 300)
/* TODO: flags? looks that we don't need these */
#define PSMUX_PACKET_FLAG_NONE (0)
#define PSMUX_PACKET_FLAG_ADAPTATION (1 << 0)
#define PSMUX_PACKET_FLAG_DISCONT (1 << 1)
#define PSMUX_PACKET_FLAG_RANDOM_ACCESS (1 << 2)
#define PSMUX_PACKET_FLAG_PRIORITY (1 << 3)
#define PSMUX_PACKET_FLAG_WRITE_PCR (1 << 4)
#define PSMUX_PACKET_FLAG_WRITE_OPCR (1 << 5)
#define PSMUX_PACKET_FLAG_WRITE_SPLICE (1 << 6)
#define PSMUX_PACKET_FLAG_WRITE_ADAPT_EXT (1 << 7)
/* PES stream specific flags */
#define PSMUX_PACKET_FLAG_PES_FULL_HEADER (1 << 8)
#define PSMUX_PACKET_FLAG_PES_WRITE_PTS (1 << 9)
#define PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS (1 << 10)
#define PSMUX_PACKET_FLAG_PES_WRITE_ESCR (1 << 11)
#define PSMUX_PACKET_FLAG_PES_EXT_STREAMID (1 << 12)
#define PSMUX_PACKET_FLAG_PES_DATA_ALIGN (1 << 13)
typedef struct PsMuxPacketInfo PsMuxPacketInfo;
typedef struct PsMuxProgram PsMuxProgram;
typedef struct PsMuxStream PsMuxStream;
typedef struct PsMuxStreamIdInfo PsMuxStreamIdInfo;
typedef struct PsMux PsMux;
typedef enum PsMuxStreamType PsMuxStreamType;
typedef struct PsMuxStreamBuffer PsMuxStreamBuffer;
/* clearup and see if we need this anymore */
struct PsMuxPacketInfo {
guint32 flags;
};
/* bitstream writers */
static inline void
psmux_put16 (guint8 **pos, guint16 val)
{
*(*pos)++ = (val >> 8) & 0xff;
*(*pos)++ = val & 0xff;
}
static inline void
psmux_put32 (guint8 **pos, guint32 val)
{
*(*pos)++ = (val >> 24) & 0xff;
*(*pos)++ = (val >> 16) & 0xff;
*(*pos)++ = (val >> 8) & 0xff;
*(*pos)++ = val & 0xff;
}
static inline void
psmux_put_ts (guint8 **pos, guint8 id, gint64 ts)
{
/* 1: 4 bit id value | TS [32..30] | marker_bit */
*(*pos)++ = ((id << 4) | ((ts >> 29) & 0x0E) | 0x01) & 0xff;
/* 2, 3: TS[29..15] | marker_bit */
psmux_put16 (pos, ((ts >> 14) & 0xfffe) | 0x01);
/* 4, 5: TS[14..0] | marker_bit */
psmux_put16 (pos, ((ts << 1) & 0xfffe) | 0x01);
}
#ifdef PS_DEBUG_ON
#define PS_DEBUG(...) g_print(__VA_ARGS__); g_print ("\n")
#else
#define PS_DEBUG(...)
#endif
G_END_DECLS
#endif
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