RTMP协议v1.0(中文翻译)-2

+----------------------+----------------------------+--------------+ | Codec Flag | Usage | Value | +----------------------+----------------------------+--------------+ | SUPPORT_SND_NONE | Raw sound, no compression | 0x0001 | +----------------------+----------------------------+--------------+ | SUPPORT_SND_ADPCM | ADPCM compression | 0x0002 | +----------------------+----------------------------+--------------+ | SUPPORT_SND_MP3 | mp3 compression | 0x0004 | +----------------------+----------------------------+--------------+ | SUPPORT_SND_INTEL | Not used | 0x0008 | +----------------------+----------------------------+--------------+ | SUPPORT_SND_UNUSED | Not used | 0x0010 | +----------------------+----------------------------+--------------+ | SUPPORT_SND_NELLY8 | NellyMoser at 8-kHz | 0x0020 | | | compression | | +----------------------+----------------------------+--------------+ | SUPPORT_SND_NELLY | NellyMoser compression | 0x0040 | | | (5, 11, 22, and 44 kHz) | | +----------------------+----------------------------+--------------+ | SUPPORT_SND_G711A | G711A sound compression | 0x0080 | | | (Flash Media Server only) | | +----------------------+----------------------------+--------------+ | SUPPORT_SND_G711U | G711U sound compression | 0x0100 | | | (Flash Media Server only) | | +----------------------+----------------------------+--------------+ | SUPPORT_SND_NELLY16 | NellyMouser at 16-kHz | 0x0200 | | | compression | | +----------------------+----------------------------+--------------+ | SUPPORT_SND_AAC | Advanced audio coding | 0x0400 | | | (AAC) codec | | +----------------------+----------------------------+--------------+ | SUPPORT_SND_SPEEX | Speex Audio | 0x0800 | +----------------------+----------------------------+--------------+ | SUPPORT_SND_ALL | All RTMP-supported audio | 0x0FFF | | | codecs | | +----------------------+----------------------------+--------------+视频编码属性的可选值:Sorenson，V1，On2，V2，H264。 +----------------------+----------------------------+--------------+ | Codec Flag | Usage | Value | +----------------------+----------------------------+--------------+ | SUPPORT_VID_UNUSED | Obsolete value | 0x0001 | +----------------------+----------------------------+--------------+ | SUPPORT_VID_JPEG | Obsolete value | 0x0002 | +----------------------+----------------------------+--------------+ | SUPPORT_VID_SORENSON | Sorenson Flash video | 0x0004 | +----------------------+----------------------------+--------------+ | SUPPORT_VID_HOMEBREW | V1 screen sharing | 0x0008 | +----------------------+----------------------------+--------------+ | SUPPORT_VID_VP6 (On2)| On2 video (Flash 8+) | 0x0010 | +----------------------+----------------------------+--------------+ | SUPPORT_VID_VP6ALPHA | On2 video with alpha | 0x0020 | | (On2 with alpha | channel | | | channel) | | | +----------------------+----------------------------+--------------+ | SUPPORT_VID_HOMEBREWV| Screen sharing version 2 | 0x0040 | | (screensharing v2) | (Flash 8+) | | +----------------------+----------------------------+--------------+ | SUPPORT_VID_H264 | H264 video | 0x0080 | +----------------------+----------------------------+--------------+ | SUPPORT_VID_ALL | All RTMP-supported video | 0x00FF | | | codecs | | +----------------------+----------------------------+--------------+视频函数属性的可选值:

+----------------------+----------------------------+--------------+ | Function Flag | Usage | Value | +----------------------+----------------------------+--------------+ | SUPPORT_VID_CLIENT | Indicates that the client | 1 | | _SEEK | can perform frame-accurate | | | | seeks. | | +----------------------+----------------------------+--------------+对象编码属性的可选值: +----------------------+----------------------------+--------------+ | Encoding Type | Usage | Value | +----------------------+----------------------------+--------------+ | AMF0 | AMF0 object encoding | 0 | | | supported by Flash 6 and | | | | later | | +----------------------+----------------------------+--------------+ | AMF3 | AMF3 encoding from | 3 | | | Flash 9 (AS3) | | +----------------------+----------------------------+--------------+服务器发送给客户端的命令结构如下: +--------------+----------+----------------------------------------+ | Field Name | Type | Description | +--------------+----------+----------------------------------------+ | Command Name | String | _result or _error; indicates whether | | | | the response is result or error. | +--------------+----------+----------------------------------------+ | Transaction | Number | Transaction ID is 1 for connect | | ID | | responses | | | | | +--------------+----------+----------------------------------------+ | Properties | Object | Name-value pairs that describe the | | | | properties(fmsver etc.) of the | | | | connection. | +--------------+----------+----------------------------------------+ | Information | Object | Name-value pairs that describe the | | | | response from|the server. ’code’, | | | | ’level’, ’description’ are names of few| | | | among such information. | +--------------+----------+----------------------------------------+

| | | precede the stream name with mp3: | | | | (for example, "mp3:sample". To play | | | | H.264/AAC files, you must precede the | | | | stream name with mp4: and specify the | | | | file extension. For example, to play the| | | | file sample.m4v,specify "mp4:sample.m4v"| | | | | +--------------+----------+-----------------------------------------+ | Start | Number | An optional parameter that specifies | | | | the start time in seconds. The default | | | | value is -2, which means the subscriber | | | | first tries to play the live stream | | | | specified in the Stream Name field. If a| | | | live stream of that name is not found,it| | | | plays the recorded stream of the same | | | | name. If there is no recorded stream | | | | with that name, the subscriber waits for| | | | a new live stream with that name and | | | | plays it when available. If you pass -1 | | | | in the Start field, only the live stream| | | | specified in the Stream Name field is | | | | played. If you pass 0 or a positive | | | | number in the Start field, a recorded | | | | stream specified in the Stream Name | | | | field is played beginning from the time | | | | specified in the Start field. If no | | | | recorded stream is found, the next item | | | | in the playlist is played. | +--------------+----------+-----------------------------------------+ | Duration | Number | An optional parameter that specifies the| | | | duration of playback in seconds. The | | | | default value is -1. The -1 value means | | | | a live stream is played until it is no | | | | longer available or a recorded stream is| | | | played until it ends. If you pass 0, it | | | | plays the single frame since the time | | | | specified in the Start field from the | | | | beginning of a recorded stream. It is | | | | assumed that the value specified in | | | | the Start field is equal to or greater | | | | than 0. If you pass a positive number, | | | | it plays a live stream for | | | | the time period specified in the | | | | Duration field. After that it becomes | | | | available or plays a recorded stream | | | | for the time specified in the Duration | | | | field. (If a stream ends before the | | | | time specified in the Duration field, | | | | playback ends when the stream ends.) | | | | If you pass a negative number other | | | | than -1 in the Duration field, it | | | | interprets the value as if it were -1. | +--------------+----------+-----------------------------------------+ | Reset | Boolean | An optional Boolean value or number | | | | that specifies whether to flush any | | | | previous playlist. | +--------------+----------+-----------------------------------------+