Name

rdrender — Render a Rivendell log as a single audio file

Synopsis

rdrender [OUTPUT-OPTS] [RENDERING-OPTS] [AUDIO-OPTS] {logname}

Description

rdrender(1) can be used to render an existing Rivendell log as a single audio file, thus enabling playback of the rendered content independently of Rivendell.

Three different types of options can be given to rdrender(1): Output, which affect the outputs of the program, Rendering, which control how a log is virtually "played" and Audio, which control the format of the resulting audio file. Each group of options is documented separately below.

Output Options

--to-cart=cartnum:cutnum

Save the rendered log to cut number cutnum in cart number cartnum. Both cart and cut must already exist. This option is mutually exclusive with the --to-file option, below.

--to-file=filename

Save the rendered log to the filename file. This option is mutually exclusive with the --to-cart option, above.

--verbose

Be verbose. Among other things, this will cause rdrender(1) to print a disposition for each log event encountered to standard error.

Exactly one --to-cart or --to-file option must be specified.

Rendering Options

--first-line=lineno

Start rendering the log at line lineno. This option is mutually exclusive with the --first-time option, below.

--first-time=HH:MM:SS

Start rendering the log at the event having a hard-start time of HH:MM:SS. This option is mutually exclusive with the --first-line option, above.

--ignore-stops

Treat any STOP transitions encountered as if they were PLAY transitions. If not given, a STOP transition will cause rendering of the log to be terminated at the point where the STOP was encountered.

--last-line=lineno

Stop rendering the log at line lineno-1. This option is mutually exclusive with the --last-time option, below.

--last-time=HH:MM:SS

Stop rendering the log at the event having a hard-start time of HH:MM:SS. This option is mutually exclusive with the --last-line option, above.

--start-time=HH:MM:SS

Render the log as if it had been started at a time of HH:MM:SS (useful for ensuring that dayparted carts play as expected). If not given, the current system time will be used.

Audio Options

--bitrate=rate

Specify the bitrate to use, in rate bits per second. Default value is 256000 bits/sec. This setting is meaningful only when used with the MP2 or MP3 formats.

--channels=chans

Use chans channels in the output file. If not given, 2 channels (stereo) will be used.

--format=format

Specify the file and audio encoding format to be used. The following values for format are recognized:

FLAC

Free Lossless Audio Codec (.flac)

MP2

MPEG-1 Layer 2 (.mp2)

MP3

MPEG-1 Layer 3 (.mp3)

PCM16

PCM16 audio in a WAV file format (.wav)

PCM24

PCM24 audio in a WAV file format (.wav)

VORBIS

OggVorbis (.ogg)

Default value is PCM16.

--normalization-level=level

Peak normalize the audio to level dBFS. Default value is 0, which will disable peak normalization.

--quality=qual

Specify the quality level to use, in the range -1 through 10, inclusive. Default value is 3. This setting is meaningful only when used with the VORBIS format.

--samplerate=rate

Specify the sample rate to use, in rate samples per second. Default value is the sample rate configured in System Settings in rdadmin(1).

Bugs

rdrender(1) makes no attempt to interpret hard-start time values beyond allowing them to be used to flag the start and end of rendering. (See the --first-time and --last-time rendering options).

Due to limitations inherent in the 32 bit Broadcast Wave File format used in Rivendell's audio store, the maximum length of the rendered log is limited to appoximately three hours for stereo and six hours for mono when using the --to-cart option.