2016-12-09 03:24:05 +01:00
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NRGrip - extract audio data and cue sheet from an NRG audio CD image
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====================================================================
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2016-12-07 04:54:05 +01:00
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This program works on a Nero Burning ROM's NRG image of an audio CD and is able
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to:
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- read and display its metadata;
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- extract the cue sheet;
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- extract the raw audio tracks as one single file, which can then be encoded by
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the user to a more convenient audio format such as FLAC, and possibly split
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according to the cue sheet.
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For now, only NRG v2 is handled (not NRG v1), and not all of the metadata chunks
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are decoded. If you have interest in adding support for additional chunks or
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formats and have a test image handy, please contact the author or open a
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ticket. In particular, it would be interesting to support ISRC/CD-Text; handling
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of multisession and hybrid (audio and data) discs would also be a nice feature.
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NRGrip is licensed under the terms of the Expat (MIT) license. See the `COPYING`
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file.
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Installing
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----------
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NRGrip is written in Rust. Make sure [Cargo](http://doc.crates.io/) is installed
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on your system, then:
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cargo build --release
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cargo install
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Usage
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-----
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2016-12-09 03:24:05 +01:00
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To see the full usage, run:
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2016-12-07 04:54:05 +01:00
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2016-12-09 03:24:05 +01:00
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nrgrip --help
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Basically, you can display the metadata and extract the data with:
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nrgrip -ix image.nrg
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2016-12-07 04:54:05 +01:00
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The cue sheet will be extracted as `image.cue`, and the audio data as
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`image.raw`.
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2016-12-09 03:24:05 +01:00
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The raw audio data from a CD is 16 bit, little endian, 44100 Hz, stereo. To
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play it, you may use, for instance, `aplay` from the ALSA utils, or `ffplay`
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from `FFmpeg`:
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2016-12-07 04:54:05 +01:00
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aplay -f cd image.raw
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2016-12-09 03:24:05 +01:00
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ffplay -f s16le -ac 2 image.raw
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Note that you can also play the NRG file directly, if the sector size is 2352
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(no sub-channel).
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2016-12-07 04:54:05 +01:00
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To encode the raw audio data to FLAC (and embed the cue sheet in it):
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flac --endian=little --sign=signed --channels=2 --bps=16 \
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--sample-rate=44100 --cuesheet=image.cue image.raw
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To split the FLAC file according to the cue sheet, you may use,
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[cuetools](https://github.com/svend/cuetools) and
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[shntool](http://www.etree.org/shnutils/shntool/):
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cuebreakpoints image.cue | shnsplit -o flac image.flac
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Or [mp3splt](http://mp3splt.sourceforge.net/):
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mp3splt -c image.cue image.flac
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