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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * FFM (ffserver live feed) common header |
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| 3 | * Copyright (c) 2001 Fabrice Bellard |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #ifndef AVFORMAT_FFM_H |
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| 23 | #define AVFORMAT_FFM_H |
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| 24 | |||
| 25 | #include |
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| 26 | #include "avformat.h" |
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| 27 | #include "avio.h" |
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| 28 | |||
| 29 | /* The FFM file is made of blocks of fixed size */ |
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| 30 | #define FFM_HEADER_SIZE 14 |
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| 31 | #define FFM_PACKET_SIZE 4096 |
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| 32 | #define PACKET_ID 0x666d |
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| 33 | |||
| 34 | /* each packet contains frames (which can span several packets */ |
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| 35 | #define FRAME_HEADER_SIZE 16 |
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| 36 | #define FLAG_KEY_FRAME 0x01 |
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| 37 | #define FLAG_DTS 0x02 |
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| 38 | |||
| 39 | enum { |
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| 40 | READ_HEADER, |
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| 41 | READ_DATA, |
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| 42 | }; |
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| 43 | |||
| 44 | typedef struct FFMContext { |
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| 45 | /* only reading mode */ |
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| 46 | int64_t write_index, file_size; |
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| 47 | int read_state; |
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| 48 | uint8_t header[FRAME_HEADER_SIZE+4]; |
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| 49 | |||
| 50 | /* read and write */ |
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| 51 | int first_packet; /* true if first packet, needed to set the discontinuity tag */ |
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| 52 | int packet_size; |
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| 53 | int frame_offset; |
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| 54 | int64_t dts; |
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| 55 | uint8_t *packet_ptr, *packet_end; |
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| 56 | uint8_t packet[FFM_PACKET_SIZE]; |
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| 57 | int64_t start_time; |
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| 58 | } FFMContext; |
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| 59 | |||
| 60 | #endif /* AVFORMAT_FFM_H */ |