FFmpeg/libavformat/ffm.h
Mans Rullgard 3b20eb25e7 avserver: move avserver-specific code from ffmdec.c to avserver.c
This way avserver only depends on the data structures of the ffm
demuxer, which it already does, and not also on private functions
being exported by the library.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-16 14:20:05 +01:00

60 lines
1.7 KiB
C

/*
* FFM (avserver live feed) common header
* Copyright (c) 2001 Fabrice Bellard
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; 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];
} FFMContext;
#endif /* AVFORMAT_FFM_H */