diff options
Diffstat (limited to 'libavformat/ffm.h')
-rw-r--r-- | libavformat/ffm.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libavformat/ffm.h b/libavformat/ffm.h new file mode 100644 index 0000000000..b392b8d8d8 --- /dev/null +++ b/libavformat/ffm.h @@ -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 */ |