dmx.h
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上传日期:2009-04-28
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- /*
- * dmx.h
- *
- * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
- * & Ralph Metzler <ralph@convergence.de>
- * for convergence integrated media GmbH
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1
- * of the License, or (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- */
- #ifndef _DVBDMX_H_
- #define _DVBDMX_H_
- #include <asm/types.h>
- #ifdef __KERNEL__
- #include <linux/time.h>
- #else
- #include <time.h>
- #endif
- #define DMX_FILTER_SIZE 16
- typedef enum
- {
- DMX_OUT_DECODER, /* Streaming directly to decoder. */
- DMX_OUT_TAP, /* Output going to a memory buffer */
- /* (to be retrieved via the read command).*/
- DMX_OUT_TS_TAP /* Output multiplexed into a new TS */
- /* (to be retrieved by reading from the */
- /* logical DVR device). */
- } dmx_output_t;
- typedef enum
- {
- DMX_IN_FRONTEND, /* Input from a front-end device. */
- DMX_IN_DVR /* Input from the logical DVR device. */
- } dmx_input_t;
- typedef enum
- {
- DMX_PES_AUDIO0,
- DMX_PES_VIDEO0,
- DMX_PES_TELETEXT0,
- DMX_PES_SUBTITLE0,
- DMX_PES_PCR0,
- DMX_PES_AUDIO1,
- DMX_PES_VIDEO1,
- DMX_PES_TELETEXT1,
- DMX_PES_SUBTITLE1,
- DMX_PES_PCR1,
- DMX_PES_AUDIO2,
- DMX_PES_VIDEO2,
- DMX_PES_TELETEXT2,
- DMX_PES_SUBTITLE2,
- DMX_PES_PCR2,
- DMX_PES_AUDIO3,
- DMX_PES_VIDEO3,
- DMX_PES_TELETEXT3,
- DMX_PES_SUBTITLE3,
- DMX_PES_PCR3,
- DMX_PES_OTHER
- } dmx_pes_type_t;
- #define DMX_PES_AUDIO DMX_PES_AUDIO0
- #define DMX_PES_VIDEO DMX_PES_VIDEO0
- #define DMX_PES_TELETEXT DMX_PES_TELETEXT0
- #define DMX_PES_SUBTITLE DMX_PES_SUBTITLE0
- #define DMX_PES_PCR DMX_PES_PCR0
- typedef enum
- {
- DMX_SCRAMBLING_EV,
- DMX_FRONTEND_EV
- } dmx_event_t;
- typedef enum
- {
- DMX_SCRAMBLING_OFF,
- DMX_SCRAMBLING_ON
- } dmx_scrambling_status_t;
- typedef struct dmx_filter
- {
- __u8 filter[DMX_FILTER_SIZE];
- __u8 mask[DMX_FILTER_SIZE];
- __u8 mode[DMX_FILTER_SIZE];
- } dmx_filter_t;
- struct dmx_sct_filter_params
- {
- __u16 pid;
- dmx_filter_t filter;
- __u32 timeout;
- __u32 flags;
- #define DMX_CHECK_CRC 1
- #define DMX_ONESHOT 2
- #define DMX_IMMEDIATE_START 4
- #define DMX_KERNEL_CLIENT 0x8000
- };
- struct dmx_pes_filter_params
- {
- __u16 pid;
- dmx_input_t input;
- dmx_output_t output;
- dmx_pes_type_t pes_type;
- __u32 flags;
- };
- struct dmx_event
- {
- dmx_event_t event;
- time_t timeStamp;
- union
- {
- dmx_scrambling_status_t scrambling;
- } u;
- };
- typedef struct dmx_caps {
- __u32 caps;
- int num_decoders;
- } dmx_caps_t;
- typedef enum {
- DMX_SOURCE_FRONT0 = 0,
- DMX_SOURCE_FRONT1,
- DMX_SOURCE_FRONT2,
- DMX_SOURCE_FRONT3,
- DMX_SOURCE_DVR0 = 16,
- DMX_SOURCE_DVR1,
- DMX_SOURCE_DVR2,
- DMX_SOURCE_DVR3
- } dmx_source_t;
- struct dmx_stc {
- unsigned int num; /* input : which STC? 0..N */
- unsigned int base; /* output: divisor for stc to get 90 kHz clock */
- __u64 stc; /* output: stc in 'base'*90 kHz units */
- };
- #define DMX_START _IO('o', 41)
- #define DMX_STOP _IO('o', 42)
- #define DMX_SET_FILTER _IOW('o', 43, struct dmx_sct_filter_params)
- #define DMX_SET_PES_FILTER _IOW('o', 44, struct dmx_pes_filter_params)
- #define DMX_SET_BUFFER_SIZE _IO('o', 45)
- #define DMX_GET_EVENT _IOR('o', 46, struct dmx_event)
- #define DMX_GET_PES_PIDS _IOR('o', 47, __u16[5])
- #define DMX_GET_CAPS _IOR('o', 48, dmx_caps_t)
- #define DMX_SET_SOURCE _IOW('o', 49, dmx_source_t)
- #define DMX_GET_STC _IOWR('o', 50, struct dmx_stc)
- #endif /*_DVBDMX_H_*/