0,0 → 1,60 |
/* |
* FFM (ffserver live feed) common header |
* Copyright (c) 2001 Fabrice Bellard |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* FFmpeg is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
#ifndef AVFORMAT_FFM_H |
#define AVFORMAT_FFM_H |
|
#include <stdint.h> |
#include "avformat.h" |
#include "avio.h" |
|
/* The FFM file is made of blocks of fixed size */ |
#define FFM_HEADER_SIZE 14 |
#define FFM_PACKET_SIZE 4096 |
#define PACKET_ID 0x666d |
|
/* each packet contains frames (which can span several packets */ |
#define FRAME_HEADER_SIZE 16 |
#define FLAG_KEY_FRAME 0x01 |
#define FLAG_DTS 0x02 |
|
enum { |
READ_HEADER, |
READ_DATA, |
}; |
|
typedef struct FFMContext { |
/* only reading mode */ |
int64_t write_index, file_size; |
int read_state; |
uint8_t header[FRAME_HEADER_SIZE+4]; |
|
/* read and write */ |
int first_packet; /* true if first packet, needed to set the discontinuity tag */ |
int packet_size; |
int frame_offset; |
int64_t dts; |
uint8_t *packet_ptr, *packet_end; |
uint8_t packet[FFM_PACKET_SIZE]; |
int64_t start_time; |
} FFMContext; |
|
#endif /* AVFORMAT_FFM_H */ |