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a9a92682dd
because the flv specification said the video frametype should use value range from 0x00 to 0x70, so use 0xF0 have no problem before support enhanced flv, but the 0xF0 will get incorrect result after support enhanced flv, so should set the video frametype mask 0x70 to make it correct now. Reported-By: flvAnalyser <hybase@qq.com> Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
155 lines
4.8 KiB
C
155 lines
4.8 KiB
C
/*
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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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/* Extended VideoTagHeader
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* defined in reference link:
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* https://github.com/veovera/enhanced-rtmp/blob/main/enhanced-rtmp-v1.pdf
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* */
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#define FLV_IS_EX_HEADER 0x80
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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 0x70
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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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PacketTypeSequenceStart = 0,
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PacketTypeCodedFrames = 1,
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PacketTypeSequenceEnd = 2,
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PacketTypeCodedFramesX = 3,
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PacketTypeMetadata = 4,
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PacketTypeMPEG2TSSequenceStart = 5,
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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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