1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2009 Kieran Kunhya
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
19 *****************************************************************************/
21 #ifndef X264_FLV_BYTESTREAM_H
22 #define X264_FLV_BYTESTREAM_H
24 /* offsets for packed values */
25 #define FLV_AUDIO_SAMPLESSIZE_OFFSET 1
26 #define FLV_AUDIO_SAMPLERATE_OFFSET 2
27 #define FLV_AUDIO_CODECID_OFFSET 4
29 #define FLV_VIDEO_FRAMETYPE_OFFSET 4
31 /* bitmasks to isolate specific values */
32 #define FLV_AUDIO_CHANNEL_MASK 0x01
33 #define FLV_AUDIO_SAMPLESIZE_MASK 0x02
34 #define FLV_AUDIO_SAMPLERATE_MASK 0x0c
35 #define FLV_AUDIO_CODECID_MASK 0xf0
37 #define FLV_VIDEO_CODECID_MASK 0x0f
38 #define FLV_VIDEO_FRAMETYPE_MASK 0xf0
40 #define AMF_END_OF_OBJECT 0x09
44 FLV_HEADER_FLAG_HASVIDEO = 1,
45 FLV_HEADER_FLAG_HASAUDIO = 4,
50 FLV_TAG_TYPE_AUDIO = 0x08,
51 FLV_TAG_TYPE_VIDEO = 0x09,
52 FLV_TAG_TYPE_META = 0x12,
63 FLV_SAMPLESSIZE_8BIT = 0,
64 FLV_SAMPLESSIZE_16BIT = 1 << FLV_AUDIO_SAMPLESSIZE_OFFSET,
69 FLV_SAMPLERATE_SPECIAL = 0, /**< signifies 5512Hz and 8000Hz in the case of NELLYMOSER */
70 FLV_SAMPLERATE_11025HZ = 1 << FLV_AUDIO_SAMPLERATE_OFFSET,
71 FLV_SAMPLERATE_22050HZ = 2 << FLV_AUDIO_SAMPLERATE_OFFSET,
72 FLV_SAMPLERATE_44100HZ = 3 << FLV_AUDIO_SAMPLERATE_OFFSET,
77 FLV_CODECID_MP3 = 2 << FLV_AUDIO_CODECID_OFFSET,
78 FLV_CODECID_AAC = 10<< FLV_AUDIO_CODECID_OFFSET,
88 FLV_FRAME_KEY = 1 << FLV_VIDEO_FRAMETYPE_OFFSET | 7,
89 FLV_FRAME_INTER = 2 << FLV_VIDEO_FRAMETYPE_OFFSET | 7,
94 AMF_DATA_TYPE_NUMBER = 0x00,
95 AMF_DATA_TYPE_BOOL = 0x01,
96 AMF_DATA_TYPE_STRING = 0x02,
97 AMF_DATA_TYPE_OBJECT = 0x03,
98 AMF_DATA_TYPE_NULL = 0x05,
99 AMF_DATA_TYPE_UNDEFINED = 0x06,
100 AMF_DATA_TYPE_REFERENCE = 0x07,
101 AMF_DATA_TYPE_MIXEDARRAY = 0x08,
102 AMF_DATA_TYPE_OBJECT_END = 0x09,
103 AMF_DATA_TYPE_ARRAY = 0x0a,
104 AMF_DATA_TYPE_DATE = 0x0b,
105 AMF_DATA_TYPE_LONG_STRING = 0x0c,
106 AMF_DATA_TYPE_UNSUPPORTED = 0x0d,
109 typedef struct flv_buffer
118 flv_buffer *flv_create_writer( const char *filename );
119 int flv_append_data( flv_buffer *c, uint8_t *data, unsigned size );
120 int flv_write_byte( flv_buffer *c, uint8_t *byte );
121 int flv_flush_data( flv_buffer *c );
122 void rewrite_amf_be24( flv_buffer *c, unsigned length, unsigned start );
124 uint64_t dbl2int( double value );
125 uint64_t get_amf_double( double value );
126 void x264_put_byte( flv_buffer *c, uint8_t b );
127 void x264_put_be32( flv_buffer *c, uint32_t val );
128 void x264_put_be64( flv_buffer *c, uint64_t val );
129 void x264_put_be16( flv_buffer *c, uint16_t val );
130 void x264_put_be24( flv_buffer *c, uint32_t val );
131 void x264_put_tag( flv_buffer *c, const char *tag );
132 void x264_put_amf_string( flv_buffer *c, const char *str );
133 void x264_put_amf_double( flv_buffer *c, double d );