Php wrappers.audio () function

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Audio Streams

ogg:// PHP 4.3.0 and up (PECL)

ogg://soundfile.ogg
ogg:///path/to/soundfile.ogg
ogg://http://www.example.com/path/to/soundstream.ogg

This wrapper is not enabled by default: In order to use the ogg:// wrapper you must install the OGG/Vorbis extension available from PECL.

Files opened for reading via the ogg:// wrapper are treated as compressed audio encoded using the OGG/Vorbis codec. Similarly, files opened for writing or appending via the ogg:// wrapper are writen as compressed audio data. stream_get_meta_data(), when used on an OGG/Vorbis file opened for reading will return various details about the stream including the vendor tag, any included comments, the number of channels, the sampling rate, and the encoding rate range described by: bitrate_lower, bitrate_upper, bitrate_nominal, and bitrate_window.

Table L-10. Wrapper Summary

Attribute	Supported
Restricted by allow_url_fopen.	No
Allows Reading	Yes
Allows Writing	Yes
Allows Appending	Yes
Allows Simultaneous Reading and Writing	No
Supports stat()	No
Supports unlink()	No
Supports rename()	No
Supports mkdir()	No
Supports rmdir()	No

Table L-11. Context options

Name	Usage	Default	Mode
`pcm_mode`	PCM encoding to apply while reading, one of: `OGGVORBIS_PCM_U8`, `OGGVORBIS_PCM_S8`, `OGGVORBIS_PCM_U16_BE`, `OGGVORBIS_PCM_S16_BE`, `OGGVORBIS_PCM_U16_LE`, and `OGGVORBIS_PCM_S16_LE`. (8 vs 16 bit, signed or unsigned, big or little endian)	OGGVORBIS_PCM_S16_LE	Read
`rate`	Sampling rate of input data, expressed in Hz	44100	Write/Append
`bitrate`	When given as an integer, the fixed bitrate at which to encode. (16000 to 131072) When given as a float, the variable bitrate quality to use. (-1.0 to 1.0)	128000	Write/Append
`channels`	The number of audio channels to encode, typically 1 (Mono), or 2 (Stero). May range as high as 16.	2	Write/Append
`comments`	An array of string values to encode into the track header.		Write/Append

Php wrappers.audio Function syntax tag

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Php wrappers.audio syntax tutorial

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