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58 lines
1.7 KiB
58 lines
1.7 KiB
/* |
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* FFM (ffserver live feed) common header |
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* Copyright (c) 2001 Fabrice Bellard. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef FFMPEG_FFM_H |
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#define FFMPEG_FFM_H |
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#include <stdint.h> |
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#include "avformat.h" |
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#include "avio.h" |
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/* The FFM file is made of blocks of fixed size */ |
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#define FFM_HEADER_SIZE 14 |
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#define PACKET_ID 0x666d |
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/* each packet contains frames (which can span several packets */ |
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#define FRAME_HEADER_SIZE 16 |
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#define FLAG_KEY_FRAME 0x01 |
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#define FLAG_DTS 0x02 |
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enum { |
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READ_HEADER, |
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READ_DATA, |
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}; |
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typedef struct FFMContext { |
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/* only reading mode */ |
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offset_t write_index, file_size; |
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int read_state; |
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uint8_t header[FRAME_HEADER_SIZE+4]; |
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/* read and write */ |
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int first_packet; /* true if first packet, needed to set the discontinuity tag */ |
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int packet_size; |
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int frame_offset; |
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int64_t dts; |
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uint8_t *packet_ptr, *packet_end; |
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uint8_t packet[FFM_PACKET_SIZE]; |
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} FFMContext; |
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#endif /* FFMPEG_FFM_H */
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