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* This program is distributed under the GNU General Public License, version 2.
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* A copy of this license is included with this source.
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* Copyright 2000-2002, Michael Smith <msmith@xiph.org>
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* Copyright 2000-2005, Michael Smith <msmith@xiph.org>
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* Portions from Vorbize, (c) Kenneth Arnold <kcarnold@yahoo.com>
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* Portions from Vorbize, (c) Kenneth Arnold <kcarnold-xiph@arnoldnet.net>
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* and libvorbis examples, (c) Monty <monty@xiph.org>
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fprintf(stderr, _("Downmixing stereo to mono\n"));
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fprintf(stderr, _("ERROR: Can't downmix except from stereo to mono\n"));
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if(opt.resamplefreq && opt.resamplefreq != enc_opts.rate)
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clear_resample(&enc_opts);
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fprintf(stderr, _("WARNING: Can't downmix except from stereo to mono\n"));
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"Usage: oggenc [options] inputfile [...]\n"
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"Usage: oggenc [options] input.wav [...]\n"
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" -Q, --quiet Produce no output to stderr\n"
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" -h, --help Print this help text\n"
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" -v, --version Print the version number\n"
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" -r, --raw Raw mode. Input files are read directly as PCM data\n"
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" -B, --raw-bits=n Set bits/sample for raw input. Default is 16\n"
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" -C, --raw-chan=n Set number of channels for raw input. Default is 2\n"
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" --raw-endianness 1 for bigendian, 0 for little (defaults to 0)\n"
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" -b, --bitrate Choose a nominal bitrate to encode at. Attempt\n"
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" to encode at a bitrate averaging this. Takes an\n"
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" argument in kbps. This uses the bitrate management\n"
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" engine, and is not recommended for most users.\n"
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" See -q, --quality for a better alternative.\n"
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" argument in kbps. By default, this produces a VBR\n"
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" encoding, equivalent to using -q or --quality.\n"
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" See the --managed option to use a managed bitrate\n"
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" targetting the selected bitrate.\n"
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" --managed Enable the bitrate management engine. This will allow\n"
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" much greater control over the precise bitrate(s) used,\n"
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" but encoding will be much slower. Don't use it unless\n"
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" you have a strong need for detailed control over\n"
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" bitrate, such as for streaming.\n"
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" -m, --min-bitrate Specify a minimum bitrate (in kbps). Useful for\n"
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" encoding for a fixed-size channel.\n"
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" encoding for a fixed-size channel. Using this will\n"
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" automatically enable managed bitrate mode (see\n"
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" -M, --max-bitrate Specify a maximum bitrate in kbps. Useful for\n"
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" streaming applications.\n"
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" -q, --quality Specify quality between 0 (low) and 10 (high),\n"
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" instead of specifying a particular bitrate.\n"
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" streaming applications. Using this will automatically\n"
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" enable managed bitrate mode (see --managed).\n"
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" --advanced-encode-option option=value\n"
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" Sets an advanced encoder option to the given value.\n"
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" The valid options (and their values) are documented\n"
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" in the man page supplied with this program. They are\n"
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" for advanced users only, and should be used with\n"
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" -q, --quality Specify quality, between -1 (very low) and 10 (very\n"
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" high), instead of specifying a particular bitrate.\n"
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" This is the normal mode of operation.\n"
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" Fractional qualities (e.g. 2.75) are permitted\n"
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" Quality -1 is also possible, but may not be of\n"
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" acceptable quality.\n"
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" The default quality level is 3.\n"
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" --resample n Resample input data to sampling rate n (Hz)\n"
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" --downmix Downmix stereo to mono. Only allowed on stereo\n"
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oggenc/oggenc.c
