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140 lines
4.3 KiB
C
Executable File
140 lines
4.3 KiB
C
Executable File
/*
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* FLV common header
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*
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* Copyright (c) 2006 The FFmpeg Project
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* FLV common header
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*/
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#ifndef AVFORMAT_FLV_H
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#define AVFORMAT_FLV_H
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/* offsets for packed values */
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#define FLV_AUDIO_SAMPLESSIZE_OFFSET 1
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#define FLV_AUDIO_SAMPLERATE_OFFSET 2
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#define FLV_AUDIO_CODECID_OFFSET 4
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#define FLV_VIDEO_FRAMETYPE_OFFSET 4
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/* bitmasks to isolate specific values */
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#define FLV_AUDIO_CHANNEL_MASK 0x01
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#define FLV_AUDIO_SAMPLESIZE_MASK 0x02
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#define FLV_AUDIO_SAMPLERATE_MASK 0x0c
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#define FLV_AUDIO_CODECID_MASK 0xf0
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#define FLV_VIDEO_CODECID_MASK 0x0f
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#define FLV_VIDEO_FRAMETYPE_MASK 0xf0
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#define AMF_END_OF_OBJECT 0x09
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#define KEYFRAMES_TAG "keyframes"
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#define KEYFRAMES_TIMESTAMP_TAG "times"
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#define KEYFRAMES_BYTEOFFSET_TAG "filepositions"
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enum {
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FLV_HEADER_FLAG_HASVIDEO = 1,
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FLV_HEADER_FLAG_HASAUDIO = 4,
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};
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enum FlvTagType {
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FLV_TAG_TYPE_AUDIO = 0x08,
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FLV_TAG_TYPE_VIDEO = 0x09,
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FLV_TAG_TYPE_META = 0x12,
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};
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enum {
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FLV_STREAM_TYPE_VIDEO,
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FLV_STREAM_TYPE_AUDIO,
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FLV_STREAM_TYPE_SUBTITLE,
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FLV_STREAM_TYPE_DATA,
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FLV_STREAM_TYPE_NB,
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};
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enum {
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FLV_MONO = 0,
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FLV_STEREO = 1,
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};
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enum {
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FLV_SAMPLESSIZE_8BIT = 0,
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FLV_SAMPLESSIZE_16BIT = 1 << FLV_AUDIO_SAMPLESSIZE_OFFSET,
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};
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enum {
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FLV_SAMPLERATE_SPECIAL = 0, /**< signifies 5512Hz and 8000Hz in the case of NELLYMOSER */
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FLV_SAMPLERATE_11025HZ = 1 << FLV_AUDIO_SAMPLERATE_OFFSET,
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FLV_SAMPLERATE_22050HZ = 2 << FLV_AUDIO_SAMPLERATE_OFFSET,
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FLV_SAMPLERATE_44100HZ = 3 << FLV_AUDIO_SAMPLERATE_OFFSET,
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};
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enum {
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FLV_CODECID_PCM = 0,
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FLV_CODECID_ADPCM = 1 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_MP3 = 2 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_PCM_LE = 3 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_NELLYMOSER_16KHZ_MONO = 4 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_NELLYMOSER_8KHZ_MONO = 5 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_NELLYMOSER = 6 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_PCM_ALAW = 7 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_PCM_MULAW = 8 << FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_AAC = 10<< FLV_AUDIO_CODECID_OFFSET,
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FLV_CODECID_SPEEX = 11<< FLV_AUDIO_CODECID_OFFSET,
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};
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enum {
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FLV_CODECID_H263 = 2,
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FLV_CODECID_SCREEN = 3,
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FLV_CODECID_VP6 = 4,
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FLV_CODECID_VP6A = 5,
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FLV_CODECID_SCREEN2 = 6,
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FLV_CODECID_H264 = 7,
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FLV_CODECID_REALH263= 8,
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FLV_CODECID_MPEG4 = 9,
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};
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enum {
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FLV_FRAME_KEY = 1 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< key frame (for AVC, a seekable frame)
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FLV_FRAME_INTER = 2 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< inter frame (for AVC, a non-seekable frame)
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FLV_FRAME_DISP_INTER = 3 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< disposable inter frame (H.263 only)
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FLV_FRAME_GENERATED_KEY = 4 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< generated key frame (reserved for server use only)
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FLV_FRAME_VIDEO_INFO_CMD = 5 << FLV_VIDEO_FRAMETYPE_OFFSET, ///< video info/command frame
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};
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typedef enum {
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AMF_DATA_TYPE_NUMBER = 0x00,
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AMF_DATA_TYPE_BOOL = 0x01,
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AMF_DATA_TYPE_STRING = 0x02,
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AMF_DATA_TYPE_OBJECT = 0x03,
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AMF_DATA_TYPE_NULL = 0x05,
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AMF_DATA_TYPE_UNDEFINED = 0x06,
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AMF_DATA_TYPE_REFERENCE = 0x07,
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AMF_DATA_TYPE_MIXEDARRAY = 0x08,
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AMF_DATA_TYPE_OBJECT_END = 0x09,
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AMF_DATA_TYPE_ARRAY = 0x0a,
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AMF_DATA_TYPE_DATE = 0x0b,
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AMF_DATA_TYPE_LONG_STRING = 0x0c,
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AMF_DATA_TYPE_UNSUPPORTED = 0x0d,
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} AMFDataType;
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#endif /* AVFORMAT_FLV_H */
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