conduit-audio-lame (empty) → 0.1
raw patch · 5 files changed
+898/−0 lines, 5 filesdep +basedep +bytestringdep +conduitsetup-changed
Dependencies added: base, bytestring, conduit, conduit-audio, resourcet, transformers, vector
Files
- LICENSE +507/−0
- Setup.hs +2/−0
- conduit-audio-lame.cabal +42/−0
- src/Data/Conduit/Audio/LAME.hs +60/−0
- src/Data/Conduit/Audio/LAME/Binding.chs +287/−0
+ LICENSE view
@@ -0,0 +1,507 @@+ GNU LESSER GENERAL PUBLIC LICENSE+ Version 2.1, February 1999++ Copyright (C) 1991, 1999 Free Software Foundation, Inc.+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++[This is the first released version of the Lesser GPL. It also counts+ as the successor of the GNU Library Public License, version 2, hence+ the version number 2.1.]++ Preamble++ The licenses for most software are designed to take away your+freedom to share and change it. By contrast, the GNU General Public+Licenses are intended to guarantee your freedom to share and change+free software--to make sure the software is free for all its users.++ This license, the Lesser General Public License, applies to some+specially designated software packages--typically libraries--of the+Free Software Foundation and other authors who decide to use it. 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+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ conduit-audio-lame.cabal view
@@ -0,0 +1,42 @@+name: conduit-audio-lame+version: 0.1+author: Michael Tolly+maintainer: miketolly@gmail.com+license: LGPL+license-file: LICENSE+category: Sound+build-type: Simple+cabal-version: >= 1.10+homepage: http://github.com/mtolly/conduit-audio+bug-reports: http://github.com/mtolly/conduit-audio/issues+synopsis: conduit-audio interface to the LAME MP3 library+description:+ A simple binding to the LAME MP3 library for use with @conduit-audio@,+ to save audio streams as MP3 files.+ .+ Requires the LAME library.+ On Ubuntu, @apt-get install libmp3lame-dev@;+ on Mac with Homebrew, @brew install lame@.++library+ exposed-modules:+ Data.Conduit.Audio.LAME+ other-modules:+ Data.Conduit.Audio.LAME.Binding+ build-depends:+ base >= 4.6 && < 4.8+ , bytestring+ , conduit+ , conduit-audio >= 0.1 && < 0.2+ , resourcet+ , transformers >= 0.3 && < 0.5+ , vector+ hs-source-dirs: src+ default-language: Haskell2010+ ghc-options: -Wall -O2+ extra-libraries:+ mp3lame++source-repository head+ type: git+ location: http://github.com/mtolly/conduit-audio
+ src/Data/Conduit/Audio/LAME.hs view
@@ -0,0 +1,60 @@+{- |+Uses the LAME library to write audio streams to MP3 files.+-}+module Data.Conduit.Audio.LAME where++import qualified Data.Conduit.Audio as A+import qualified Data.Conduit.Audio.LAME.Binding as L+import qualified Data.Conduit as C+import Control.Monad.Trans.Resource+import Control.Monad.IO.Class+import Control.Monad (when, unless)+import Control.Monad.Fix (fix)+import qualified Data.Vector.Storable as V+import qualified Data.ByteString as B+import Foreign+import qualified System.IO as IO++-- | Saves an audio stream to an MP3 file.+sinkMP3 :: (MonadResource m) => FilePath -> A.AudioSource m Float -> m ()+sinkMP3 fp (A.AudioSource s r c _) = (C.$$) s+ $ C.bracketP L.init (L.check . L.close)+ $ \lame -> C.bracketP (IO.openBinaryFile fp IO.WriteMode) IO.hClose+ $ \fout -> do+ let o = liftIO . L.check+ o $ L.setInSamplerate lame $ round r+ unless (c `elem ` [1, 2]) $ error $+ "sinkMP3: only 1 or 2 channels are supported (" ++ show c ++ " given)"+ o $ L.setNumChannels lame c+ o $ L.setVBR lame L.VbrDefault+ o $ L.initParams lame+ fix $ \loop -> C.await >>= \mx -> case mx of+ Nothing -> liftIO $ do+ bs <- allocaArray 7200 $ \buf -> do+ len <- L.encodeFlush lame (castPtr buf) 7200+ B.packCStringLen (buf, len)+ B.hPutStr fout bs+ IO.hSeek fout IO.AbsoluteSeek 0+ tags <- allocaArray 100000 $ \buf -> do+ len <- L.getLametagFrame lame (castPtr buf) 100000+ when (len < 0) $ error "sinkMP3: couldn't get lame tag frame (buffer too small)"+ B.packCStringLen (buf, fromIntegral len)+ B.hPutStr fout tags+ Just v -> do+ let nsamples = A.vectorFrames v c+ mp3bufsize = ceiling (1.25 * fromIntegral nsamples + 7200 :: Double) :: Int+ liftIO $ V.unsafeWith v $ \p -> do+ bs <- allocaArray mp3bufsize $ \buf -> do+ len <- case c of+ 1 -> L.encodeBufferIeeeFloat lame (castPtr p) nullPtr nsamples (castPtr buf) mp3bufsize+ _ -> L.encodeBufferInterleavedIeeeFloat lame (castPtr p) nsamples (castPtr buf) mp3bufsize+ when (len < 0) $ error $+ "sinkMP3: encode function returned " ++ show len ++ "; " ++ case len of+ -1 -> "mp3buf was too small"+ -2 -> "malloc() problem"+ -3 -> "lame_init_params() not called"+ -4 -> "psycho acoustic problems"+ _ -> "unknown error"+ B.packCStringLen (buf, len)+ B.hPutStr fout bs+ loop
+ src/Data/Conduit/Audio/LAME/Binding.chs view
@@ -0,0 +1,287 @@+module Data.Conduit.Audio.LAME.Binding where++import Foreign+import Foreign.C++#include <lame/lame.h>++{#pointer *lame_global_flags as LAME newtype #}++{#context prefix="lame_"#}++{#fun init as ^ {} -> `LAME' #}++++{#fun get_num_samples as ^ { `LAME' } -> `Int' #}+{#fun set_num_samples as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_in_samplerate as ^ { `LAME' } -> `Int' #}+{#fun set_in_samplerate as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_num_channels as ^ { `LAME' } -> `Int' #}+{#fun set_num_channels as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_scale as ^ { `LAME' } -> `Float' #}+{#fun set_scale as ^ { `LAME', `Float' } -> `Int' #}+{#fun get_scale_left as ^ { `LAME' } -> `Float' #}+{#fun set_scale_left as ^ { `LAME', `Float' } -> `Int' #}+{#fun get_scale_right as ^ { `LAME' } -> `Float' #}+{#fun set_scale_right as ^ { `LAME', `Float' } -> `Int' #}+{#fun get_out_samplerate as ^ { `LAME' } -> `Int' #}+{#fun set_out_samplerate as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_analysis as ^ { `LAME' } -> `Bool' #}+{#fun set_analysis as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_bWriteVbrTag as ^ { `LAME' } -> `Bool' #}+{#fun set_bWriteVbrTag as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_decode_only as ^ { `LAME' } -> `Bool' #}+{#fun set_decode_only as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_quality as ^ { `LAME' } -> `Int' #}+{#fun set_quality as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_mode as ^ { `LAME' } -> `MPEGMode' toCEnum #}+{#fun set_mode as ^ { `LAME', fromCEnum `MPEGMode' } -> `Int' #}++{#enum MPEG_mode as MPEGMode {underscoreToCase}+ deriving (Eq, Ord, Show, Read, Bounded) #}++fromCEnum :: (Enum a) => a -> CInt+fromCEnum = fromIntegral . fromEnum++toCEnum :: (Enum a) => CInt -> a+toCEnum = toEnum . fromIntegral++{#fun get_force_ms as ^ { `LAME' } -> `Bool' #}+{#fun set_force_ms as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_free_format as ^ { `LAME' } -> `Bool' #}+{#fun set_free_format as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_findReplayGain as ^ { `LAME' } -> `Bool' #}+{#fun set_findReplayGain as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_decode_on_the_fly as ^ { `LAME' } -> `Bool' #}+{#fun set_decode_on_the_fly as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_nogap_total as ^ { `LAME' } -> `Int' #}+{#fun set_nogap_total as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_nogap_currentindex as ^ { `LAME' } -> `Int' #}+{#fun set_nogap_currentindex as ^ { `LAME', `Int' } -> `Int' #}++-- TODO: lame_set_errorf, lame_set_debugf, lame_set_msgf++{#fun get_brate as ^ { `LAME' } -> `Int' #}+{#fun set_brate as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_compression_ratio as ^ { `LAME' } -> `Float' #}+{#fun set_compression_ratio as ^ { `LAME', `Float' } -> `Int' #}++{#fun set_preset as ^ { `LAME', `Int' } -> `Int' #}+{#fun set_asm_optimizations as ^ { `LAME', `Int', `Int' } -> `Int' #}++{#fun get_copyright as ^ { `LAME' } -> `Bool' #}+{#fun set_copyright as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_original as ^ { `LAME' } -> `Bool' #}+{#fun set_original as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_error_protection as ^ { `LAME' } -> `Bool' #}+{#fun set_error_protection as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_extension as ^ { `LAME' } -> `Bool' #}+{#fun set_extension as ^ { `LAME', `Bool' } -> `Int' #}+{#fun get_strict_ISO as ^ { `LAME' } -> `Bool' #}+{#fun set_strict_ISO as ^ { `LAME', `Bool' } -> `Int' #}++-- TODO: quantization/noise shaping section++{#fun get_VBR as ^ { `LAME' } -> `VBRMode' toCEnum #}+{#fun set_VBR as ^ { `LAME', fromCEnum `VBRMode' } -> `Int' #}++{#enum vbr_mode as VBRMode {underscoreToCase}+ deriving (Eq, Ord, Show, Read, Bounded) #}++{#fun get_VBR_q as ^ { `LAME' } -> `Int' #}+{#fun set_VBR_q as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_VBR_quality as ^ { `LAME' } -> `Float' #}+{#fun set_VBR_quality as ^ { `LAME', `Float' } -> `Int' #}++{#fun get_VBR_mean_bitrate_kbps as ^ { `LAME' } -> `Int' #}+{#fun set_VBR_mean_bitrate_kbps as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_VBR_min_bitrate_kbps as ^ { `LAME' } -> `Int' #}+{#fun set_VBR_min_bitrate_kbps as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_VBR_max_bitrate_kbps as ^ { `LAME' } -> `Int' #}+{#fun set_VBR_max_bitrate_kbps as ^ { `LAME', `Int' } -> `Int' #}++{#fun get_VBR_hard_min as ^ { `LAME' } -> `Bool' #}+{#fun set_VBR_hard_min as ^ { `LAME', `Bool' } -> `Int' #}++{#fun get_lowpassfreq as ^ { `LAME' } -> `Int' #}+{#fun set_lowpassfreq as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_lowpasswidth as ^ { `LAME' } -> `Int' #}+{#fun set_lowpasswidth as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_highpassfreq as ^ { `LAME' } -> `Int' #}+{#fun set_highpassfreq as ^ { `LAME', `Int' } -> `Int' #}+{#fun get_highpasswidth as ^ { `LAME' } -> `Int' #}+{#fun set_highpasswidth as ^ { `LAME', `Int' } -> `Int' #}++-- TODO: psycho acoustics section++{#fun get_version as ^ { `LAME' } -> `Int' #}+{#fun get_encoder_delay as ^ { `LAME' } -> `Int' #}+{#fun get_encoder_padding as ^ { `LAME' } -> `Int' #}+{#fun get_framesize as ^ { `LAME' } -> `Int' #}+{#fun get_mf_samples_to_encode as ^ { `LAME' } -> `Int' #}+{#fun get_size_mp3buffer as ^ { `LAME' } -> `Int' #}+{#fun get_frameNum as ^ { `LAME' } -> `Int' #}+{#fun get_totalframes as ^ { `LAME' } -> `Int' #}+{#fun get_RadioGain as ^ { `LAME' } -> `Int' #}+{#fun get_AudiophileGain as ^ { `LAME' } -> `Int' #}+{#fun get_PeakSample as ^ { `LAME' } -> `Float' #}+{#fun get_noclipGainChange as ^ { `LAME' } -> `Int' #}+{#fun get_noclipScale as ^ { `LAME' } -> `Float' #}++{#fun init_params as ^ { `LAME' } -> `Int' #}+++{#fun get_lame_version as ^ {} -> `String' #}++{#fun get_lame_short_version as ^ {} -> `String' #}++{#fun get_lame_very_short_version as ^ {} -> `String' #}++{#fun get_psy_version as ^ {} -> `String' #}++{#fun get_lame_url as ^ {} -> `String' #}++{#fun get_lame_os_bitness as ^ {} -> `String' #}+++-- TODO: get_lame_version_numerical++{#fun print_config as ^ { `LAME' } -> `()' #}+{#fun print_internals as ^ { `LAME' } -> `()' #}+++++++{#fun encode_buffer as ^+ { `LAME'+ , id `Ptr CShort' -- ^ PCM data for left channel+ , id `Ptr CShort' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_interleaved as ^+ { `LAME'+ , id `Ptr CShort' -- ^ PCM data for left and right channel, interleaved+ , `Int' -- ^ number of samples per channel, /not/ number of samples overall+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_float as ^+ { `LAME'+ , id `Ptr CFloat' -- ^ PCM data for left channel+ , id `Ptr CFloat' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_ieee_float as ^+ { `LAME'+ , id `Ptr CFloat' -- ^ PCM data for left channel+ , id `Ptr CFloat' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_interleaved_ieee_float as ^+ { `LAME'+ , id `Ptr CFloat' -- ^ PCM data for left and right channel, interleaved+ , `Int' -- ^ number of samples per channel, /not/ number of samples overall+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_ieee_double as ^+ { `LAME'+ , id `Ptr CDouble' -- ^ PCM data for left channel+ , id `Ptr CDouble' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_interleaved_ieee_double as ^+ { `LAME'+ , id `Ptr CDouble' -- ^ PCM data for left and right channel, interleaved+ , `Int' -- ^ number of samples per channel, /not/ number of samples overall+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_long as ^+ { `LAME'+ , id `Ptr CLong' -- ^ PCM data for left channel+ , id `Ptr CLong' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_long2 as ^+ { `LAME'+ , id `Ptr CLong' -- ^ PCM data for left channel+ , id `Ptr CLong' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_buffer_int as ^+ { `LAME'+ , id `Ptr CInt' -- ^ PCM data for left channel+ , id `Ptr CInt' -- ^ PCM data for right channel+ , `Int' -- ^ number of samples per channel+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- ^ number of valid octets in this stream+ } -> `Int' #}+++{#fun encode_flush as ^+ { `LAME'+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- number of valid octets in this stream+ } -> `Int' #}++{#fun encode_flush_nogap as ^+ { `LAME'+ , id `Ptr CUChar' -- ^ pointer to encoded MP3 stream+ , `Int' -- number of valid octets in this stream+ } -> `Int' #}++{#fun init_bitstream as ^+ { `LAME'+ } -> `Int' #}++-- TODO: some simple statistics++{#fun get_lametag_frame as ^+ { `LAME'+ , id `Ptr CUChar'+ , fromIntegral `CSize'+ } -> `CSize' fromIntegral #}++{#fun close as ^ { `LAME' } -> `Int' #}++{#enum lame_errorcodes_t as ErrorCode {underscoreToCase}+ deriving (Eq, Ord, Show, Read, Bounded) #}++check :: IO Int -> IO ()+check x = x >>= \c -> case c of+ 0 -> return ()+ _ -> error $ show (toEnum c :: ErrorCode)