2 * FFM (ffserver live feed) common header
3 * Copyright (c) 2001 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
22 #ifndef AVFORMAT_FFM_H
23 #define AVFORMAT_FFM_H
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
34 /* each packet contains frames (which can span several packets */
35 #define FRAME_HEADER_SIZE 16
36 #define FLAG_KEY_FRAME 0x01
44 typedef struct FFMContext {
46 /* only reading mode */
47 int64_t write_index, file_size;
49 uint8_t header[FRAME_HEADER_SIZE+4];
52 int first_packet; /* true if first packet, needed to set the discontinuity tag */
56 uint8_t *packet_ptr, *packet_end;
57 uint8_t packet[FFM_PACKET_SIZE];
62 #endif /* AVFORMAT_FFM_H */