repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 */ |