mirror of
				https://github.com/bolucat/Archive.git
				synced 2025-10-31 20:03:10 +08:00 
			
		
		
		
	
		
			
				
	
	
		
			55 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			55 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| To build this source code, simply type:
 | |
| 
 | |
| % make
 | |
| 
 | |
| If this does not work, or if you want to change the default configuration
 | |
| (e.g., to compile for a fixed-point architecture), simply edit the options
 | |
| in the Makefile.
 | |
| 
 | |
| An up-to-date implementation conforming to this standard is available in a
 | |
| Git repository at https://gitlab.xiph.org/xiph/opus.git or on a website at:
 | |
| https://opus-codec.org/
 | |
| However, although that implementation is expected to remain conformant
 | |
| with the standard, it is the code in this RFC that shall remain normative.
 | |
| To build from the git repository instead of using this RFC, follow these
 | |
| steps:
 | |
| 
 | |
| 1) Clone the repository (latest implementation of this standard at the time
 | |
| of publication)
 | |
| 
 | |
| % git clone https://gitlab.xiph.org/xiph/opus.git
 | |
| % cd opus
 | |
| 
 | |
| 2) Compile
 | |
| 
 | |
| % ./autogen.sh
 | |
| % ./configure
 | |
| % make
 | |
| 
 | |
| Once you have compiled the codec, there will be a opus_demo executable in
 | |
| the top directory.
 | |
| 
 | |
| Usage: opus_demo [-e] <application> <sampling rate (Hz)> <channels (1/2)>
 | |
|          <bits per second> [options] <input> <output>
 | |
|        opus_demo -d <sampling rate (Hz)> <channels (1/2)> [options]
 | |
|          <input> <output>
 | |
| 
 | |
| mode: voip | audio | restricted-lowdelay
 | |
| options:
 | |
| -e                   : only runs the encoder (output the bit-stream)
 | |
| -d                   : only runs the decoder (reads the bit-stream as input)
 | |
| -cbr                 : enable constant bitrate; default: variable bitrate
 | |
| -cvbr                : enable constrained variable bitrate; default: unconstrained
 | |
| -bandwidth <NB|MB|WB|SWB|FB> : audio bandwidth (from narrowband to fullband);
 | |
|                                default: sampling rate
 | |
| -framesize <2.5|5|10|20|40|60> : frame size in ms; default: 20
 | |
| -max_payload <bytes> : maximum payload size in bytes, default: 1024
 | |
| -complexity <comp>   : complexity, 0 (lowest) ... 10 (highest); default: 10
 | |
| -inbandfec           : enable SILK inband FEC
 | |
| -forcemono           : force mono encoding, even for stereo input
 | |
| -dtx                 : enable SILK DTX
 | |
| -loss <perc>         : simulate packet loss, in percent (0-100); default: 0
 | |
| 
 | |
| input and output are little endian signed 16-bit PCM files or opus bitstreams
 | |
| with simple opus_demo proprietary framing.
 | 
