[deb_ffmpeg.git] / ffmpeg / libavformat / ffm.h

/*
 * FFM (ffserver live feed) common header
 * Copyright (c) 2001 Fabrice Bellard
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg 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.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVFORMAT_FFM_H
#define AVFORMAT_FFM_H

#include <stdint.h>
#include "avformat.h"
#include "avio.h"

/* The FFM file is made of blocks of fixed size */
#define FFM_HEADER_SIZE 14
#define FFM_PACKET_SIZE 4096
#define PACKET_ID       0x666d

/* each packet contains frames (which can span several packets */
#define FRAME_HEADER_SIZE    16
#define FLAG_KEY_FRAME       0x01
#define FLAG_DTS             0x02

enum {
    READ_HEADER,
    READ_DATA,
};

typedef struct FFMContext {
    /* only reading mode */
    int64_t write_index, file_size;
    int read_state;
    uint8_t header[FRAME_HEADER_SIZE+4];

    /* read and write */
    int first_packet; /* true if first packet, needed to set the discontinuity tag */
    int packet_size;
    int frame_offset;
    int64_t dts;
    uint8_t *packet_ptr, *packet_end;
    uint8_t packet[FFM_PACKET_SIZE];
    int64_t start_time;
} FFMContext;

#endif /* AVFORMAT_FFM_H */
Commit	Line	Data
	1	/*
	2	* FFM (ffserver live feed) common header
	3	* Copyright (c) 2001 Fabrice Bellard
	4	*
	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU Lesser General Public
	9	* License as published by the Free Software Foundation; either
	10	* version 2.1 of the License, or (at your option) any later version.
	11	*
	12	* FFmpeg is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
	18	* License along with FFmpeg; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
	22	#ifndef AVFORMAT_FFM_H
	23	#define AVFORMAT_FFM_H
	24
	25	#include <stdint.h>
	26	#include "avformat.h"
	27	#include "avio.h"
	28
	29	/* The FFM file is made of blocks of fixed size */
	30	#define FFM_HEADER_SIZE 14
	31	#define FFM_PACKET_SIZE 4096
	32	#define PACKET_ID 0x666d
	33
	34	/* each packet contains frames (which can span several packets */
	35	#define FRAME_HEADER_SIZE 16
	36	#define FLAG_KEY_FRAME 0x01
	37	#define FLAG_DTS 0x02
	38
	39	enum {
	40	READ_HEADER,
	41	READ_DATA,
	42	};
	43
	44	typedef struct FFMContext {
	45	/* only reading mode */
	46	int64_t write_index, file_size;
	47	int read_state;
	48	uint8_t header[FRAME_HEADER_SIZE+4];
	49
	50	/* read and write */
	51	int first_packet; /* true if first packet, needed to set the discontinuity tag */
	52	int packet_size;
	53	int frame_offset;
	54	int64_t dts;
	55	uint8_t packet_ptr, packet_end;
	56	uint8_t packet[FFM_PACKET_SIZE];
	57	int64_t start_time;
	58	} FFMContext;
	59
	60	#endif /* AVFORMAT_FFM_H */