[deb_ffmpeg.git] / ffmpeg / libavformat / flv.h

/*
 * FLV common header
 *
 * Copyright (c) 2006 The FFmpeg Project
 *
 * 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
 */

/**
 * @file
 * FLV common header
 */

#ifndef AVFORMAT_FLV_H
#define AVFORMAT_FLV_H

/* offsets for packed values */
#define FLV_AUDIO_SAMPLESSIZE_OFFSET 1
#define FLV_AUDIO_SAMPLERATE_OFFSET  2
#define FLV_AUDIO_CODECID_OFFSET     4

#define FLV_VIDEO_FRAMETYPE_OFFSET   4

/* bitmasks to isolate specific values */
#define FLV_AUDIO_CHANNEL_MASK    0x01
#define FLV_AUDIO_SAMPLESIZE_MASK 0x02
#define FLV_AUDIO_SAMPLERATE_MASK 0x0c
#define FLV_AUDIO_CODECID_MASK    0xf0

#define FLV_VIDEO_CODECID_MASK    0x0f
#define FLV_VIDEO_FRAMETYPE_MASK  0xf0

#define AMF_END_OF_OBJECT         0x09

#define KEYFRAMES_TAG            "keyframes"
#define KEYFRAMES_TIMESTAMP_TAG  "times"
#define KEYFRAMES_BYTEOFFSET_TAG "filepositions"


enum {
    FLV_HEADER_FLAG_HASVIDEO = 1,
    FLV_HEADER_FLAG_HASAUDIO = 4,
};

enum {
    FLV_TAG_TYPE_AUDIO = 0x08,
    FLV_TAG_TYPE_VIDEO = 0x09,
    FLV_TAG_TYPE_META  = 0x12,
};

enum {
    FLV_STREAM_TYPE_VIDEO,
    FLV_STREAM_TYPE_AUDIO,
    FLV_STREAM_TYPE_DATA,
    FLV_STREAM_TYPE_NB,
};

enum {
    FLV_MONO   = 0,
    FLV_STEREO = 1,
};

enum {
    FLV_SAMPLESSIZE_8BIT  = 0,
    FLV_SAMPLESSIZE_16BIT = 1 << FLV_AUDIO_SAMPLESSIZE_OFFSET,
};

enum {
    FLV_SAMPLERATE_SPECIAL = 0, /**< signifies 5512Hz and 8000Hz in the case of NELLYMOSER */
    FLV_SAMPLERATE_11025HZ = 1 << FLV_AUDIO_SAMPLERATE_OFFSET,
    FLV_SAMPLERATE_22050HZ = 2 << FLV_AUDIO_SAMPLERATE_OFFSET,
    FLV_SAMPLERATE_44100HZ = 3 << FLV_AUDIO_SAMPLERATE_OFFSET,
};

enum {
    FLV_CODECID_PCM                  = 0,
    FLV_CODECID_ADPCM                = 1 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_MP3                  = 2 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_PCM_LE               = 3 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_NELLYMOSER_16KHZ_MONO = 4 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_NELLYMOSER_8KHZ_MONO = 5 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_NELLYMOSER           = 6 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_PCM_ALAW             = 7 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_PCM_MULAW            = 8 << FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_AAC                  = 10<< FLV_AUDIO_CODECID_OFFSET,
    FLV_CODECID_SPEEX                = 11<< FLV_AUDIO_CODECID_OFFSET,
};

enum {
    FLV_CODECID_H263    = 2,
    FLV_CODECID_SCREEN  = 3,
    FLV_CODECID_VP6     = 4,
    FLV_CODECID_VP6A    = 5,
    FLV_CODECID_SCREEN2 = 6,
    FLV_CODECID_H264    = 7,
    FLV_CODECID_REALH263= 8,
    FLV_CODECID_MPEG4   = 9,
};

enum {
    FLV_FRAME_KEY            = 1 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< key frame (for AVC, a seekable frame)
    FLV_FRAME_INTER          = 2 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< inter frame (for AVC, a non-seekable frame)
    FLV_FRAME_DISP_INTER     = 3 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< disposable inter frame (H.263 only)
    FLV_FRAME_GENERATED_KEY  = 4 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< generated key frame (reserved for server use only)
    FLV_FRAME_VIDEO_INFO_CMD = 5 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< video info/command frame
};

typedef enum {
    AMF_DATA_TYPE_NUMBER      = 0x00,
    AMF_DATA_TYPE_BOOL        = 0x01,
    AMF_DATA_TYPE_STRING      = 0x02,
    AMF_DATA_TYPE_OBJECT      = 0x03,
    AMF_DATA_TYPE_NULL        = 0x05,
    AMF_DATA_TYPE_UNDEFINED   = 0x06,
    AMF_DATA_TYPE_REFERENCE   = 0x07,
    AMF_DATA_TYPE_MIXEDARRAY  = 0x08,
    AMF_DATA_TYPE_OBJECT_END  = 0x09,
    AMF_DATA_TYPE_ARRAY       = 0x0a,
    AMF_DATA_TYPE_DATE        = 0x0b,
    AMF_DATA_TYPE_LONG_STRING = 0x0c,
    AMF_DATA_TYPE_UNSUPPORTED = 0x0d,
} AMFDataType;

#endif /* AVFORMAT_FLV_H */
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* FLV common header
	3	*
	4	* Copyright (c) 2006 The FFmpeg Project
	5	*
	6	* This file is part of FFmpeg.
	7	*
	8	* FFmpeg is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU Lesser General Public
	10	* License as published by the Free Software Foundation; either
	11	* version 2.1 of the License, or (at your option) any later version.
	12	*
	13	* FFmpeg is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* Lesser General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU Lesser General Public
	19	* License along with FFmpeg; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	21	*/
	22
	23	/**
	24	* @file
	25	* FLV common header
	26	*/
	27
	28	#ifndef AVFORMAT_FLV_H
	29	#define AVFORMAT_FLV_H
	30
	31	/* offsets for packed values */
	32	#define FLV_AUDIO_SAMPLESSIZE_OFFSET 1
	33	#define FLV_AUDIO_SAMPLERATE_OFFSET 2
	34	#define FLV_AUDIO_CODECID_OFFSET 4
	35
	36	#define FLV_VIDEO_FRAMETYPE_OFFSET 4
	37
	38	/* bitmasks to isolate specific values */
	39	#define FLV_AUDIO_CHANNEL_MASK 0x01
	40	#define FLV_AUDIO_SAMPLESIZE_MASK 0x02
	41	#define FLV_AUDIO_SAMPLERATE_MASK 0x0c
	42	#define FLV_AUDIO_CODECID_MASK 0xf0
	43
	44	#define FLV_VIDEO_CODECID_MASK 0x0f
	45	#define FLV_VIDEO_FRAMETYPE_MASK 0xf0
	46
	47	#define AMF_END_OF_OBJECT 0x09
	48
	49	#define KEYFRAMES_TAG "keyframes"
	50	#define KEYFRAMES_TIMESTAMP_TAG "times"
	51	#define KEYFRAMES_BYTEOFFSET_TAG "filepositions"
	52
	53
	54	enum {
	55	FLV_HEADER_FLAG_HASVIDEO = 1,
	56	FLV_HEADER_FLAG_HASAUDIO = 4,
	57	};
	58
	59	enum {
	60	FLV_TAG_TYPE_AUDIO = 0x08,
	61	FLV_TAG_TYPE_VIDEO = 0x09,
	62	FLV_TAG_TYPE_META = 0x12,
	63	};
	64
65	enum {
66	FLV_STREAM_TYPE_VIDEO,
67	FLV_STREAM_TYPE_AUDIO,
68	FLV_STREAM_TYPE_DATA,
69	FLV_STREAM_TYPE_NB,
70	};
71
72	enum {
73	FLV_MONO = 0,
74	FLV_STEREO = 1,
75	};
76
77	enum {
78	FLV_SAMPLESSIZE_8BIT = 0,
79	FLV_SAMPLESSIZE_16BIT = 1 << FLV_AUDIO_SAMPLESSIZE_OFFSET,
80	};
81
82	enum {
83	FLV_SAMPLERATE_SPECIAL = 0, /*< signifies 5512Hz and 8000Hz in the case of NELLYMOSER /
84	FLV_SAMPLERATE_11025HZ = 1 << FLV_AUDIO_SAMPLERATE_OFFSET,
85	FLV_SAMPLERATE_22050HZ = 2 << FLV_AUDIO_SAMPLERATE_OFFSET,
86	FLV_SAMPLERATE_44100HZ = 3 << FLV_AUDIO_SAMPLERATE_OFFSET,
87	};
88
89	enum {
90	FLV_CODECID_PCM = 0,
91	FLV_CODECID_ADPCM = 1 << FLV_AUDIO_CODECID_OFFSET,
92	FLV_CODECID_MP3 = 2 << FLV_AUDIO_CODECID_OFFSET,
93	FLV_CODECID_PCM_LE = 3 << FLV_AUDIO_CODECID_OFFSET,
94	FLV_CODECID_NELLYMOSER_16KHZ_MONO = 4 << FLV_AUDIO_CODECID_OFFSET,
95	FLV_CODECID_NELLYMOSER_8KHZ_MONO = 5 << FLV_AUDIO_CODECID_OFFSET,
96	FLV_CODECID_NELLYMOSER = 6 << FLV_AUDIO_CODECID_OFFSET,
97	FLV_CODECID_PCM_ALAW = 7 << FLV_AUDIO_CODECID_OFFSET,
98	FLV_CODECID_PCM_MULAW = 8 << FLV_AUDIO_CODECID_OFFSET,
99	FLV_CODECID_AAC = 10<< FLV_AUDIO_CODECID_OFFSET,
100	FLV_CODECID_SPEEX = 11<< FLV_AUDIO_CODECID_OFFSET,
101	};
102
103	enum {
104	FLV_CODECID_H263 = 2,
105	FLV_CODECID_SCREEN = 3,
106	FLV_CODECID_VP6 = 4,
107	FLV_CODECID_VP6A = 5,
108	FLV_CODECID_SCREEN2 = 6,
109	FLV_CODECID_H264 = 7,
110	FLV_CODECID_REALH263= 8,
111	FLV_CODECID_MPEG4 = 9,
112	};
113
114	enum {
115	FLV_FRAME_KEY = 1 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< key frame (for AVC, a seekable frame)
116	FLV_FRAME_INTER = 2 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< inter frame (for AVC, a non-seekable frame)
117	FLV_FRAME_DISP_INTER = 3 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< disposable inter frame (H.263 only)
118	FLV_FRAME_GENERATED_KEY = 4 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< generated key frame (reserved for server use only)
119	FLV_FRAME_VIDEO_INFO_CMD = 5 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< video info/command frame
120	};
121
122	typedef enum {
123	AMF_DATA_TYPE_NUMBER = 0x00,
124	AMF_DATA_TYPE_BOOL = 0x01,
125	AMF_DATA_TYPE_STRING = 0x02,
126	AMF_DATA_TYPE_OBJECT = 0x03,
127	AMF_DATA_TYPE_NULL = 0x05,
128	AMF_DATA_TYPE_UNDEFINED = 0x06,
129	AMF_DATA_TYPE_REFERENCE = 0x07,
130	AMF_DATA_TYPE_MIXEDARRAY = 0x08,
131	AMF_DATA_TYPE_OBJECT_END = 0x09,
132	AMF_DATA_TYPE_ARRAY = 0x0a,
133	AMF_DATA_TYPE_DATE = 0x0b,
134	AMF_DATA_TYPE_LONG_STRING = 0x0c,
135	AMF_DATA_TYPE_UNSUPPORTED = 0x0d,
136	} AMFDataType;
137
138	#endif /* AVFORMAT_FLV_H */