/* * 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 FlvTagType { 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, FLV_CODECID_HEVC = 12, }; 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 */