Statistics
| Branch: | Revision:

ffmpeg / libavformat / ffm.h @ 2940b38e

History | View | Annotate | Download (1.73 KB)

1 85a6b01d Baptiste Coudurier
/*
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 FFMPEG_FFM_H
23
#define FFMPEG_FFM_H
24
25
#include "avformat.h"
26
27
/* The FFM file is made of blocks of fixed size */
28
#define FFM_HEADER_SIZE 14
29
#define PACKET_ID       0x666d
30
31
/* each packet contains frames (which can span several packets */
32
#define FRAME_HEADER_SIZE    8
33
#define FLAG_KEY_FRAME       0x01
34
35
enum {
36
    READ_HEADER,
37
    READ_DATA,
38
};
39
40
typedef struct FFMContext {
41
    /* only reading mode */
42
    offset_t write_index, file_size;
43
    int read_state;
44
    uint8_t header[FRAME_HEADER_SIZE];
45
46
    /* read and write */
47
    int first_packet; /* true if first packet, needed to set the discontinuity tag */
48
    int first_frame_in_packet; /* true if first frame in packet, needed to know if PTS information is valid */
49
    int packet_size;
50
    int frame_offset;
51
    int64_t pts;
52
    uint8_t *packet_ptr, *packet_end;
53
    uint8_t packet[FFM_PACKET_SIZE];
54 2940b38e Baptiste Coudurier
    int64_t start_time;
55 85a6b01d Baptiste Coudurier
} FFMContext;
56
57
#endif /* FFMPEG_FFM_H */