BASS_CD_StreamCreateEx


Creates a sample stream from an audio CD track, optionally providing a callback function to receive sub-channel data and/or C2 error info.

HSTREAM BASS_CD_StreamCreateEx(
    DWORD drive,
    DWORD track,
    DWORD flags,
    CDDATAPROC *proc,
    void *user
);

Parameters

driveThe drive... 0 = the first drive.
trackThe track... 0 = the first track, BASS_CD_TRACK_PREGAP = 1st track pregap (not all drives support reading of the 1st track pregap).
flagsAny combination of these flags.
BASS_SAMPLE_FLOATUse 32-bit floating-point sample data. See Floating-point channels for more info.
BASS_SAMPLE_SOFTWAREForce the stream to not use hardware mixing.
BASS_SAMPLE_LOOPLoop the file. This flag can be toggled at any time using BASS_ChannelFlags.
BASS_SAMPLE_FXEnable the old implementation of DirectX 8 effects. See the DX8 effect implementations section for details. Use BASS_ChannelSetFX to add effects to the stream.
BASS_STREAM_AUTOFREEAutomatically free the stream when playback ends.
BASS_STREAM_DECODEDecode the sample data, without playing it. Use BASS_ChannelGetData to retrieve decoded sample data. The BASS_STREAM_AUTOFREE and SPEAKER flags cannot be used together with this flag. The BASS_SAMPLE_SOFTWARE and BASS_SAMPLE_FX flags are also ignored.
BASS_SPEAKER_xxxSpeaker assignment flags.
BASS_CD_SUBCHANNELRead sub-channel data. 96 bytes of de-interleaved sub-channel data will be inserted after each 2352 bytes of audio data or delivered to the provided CDDATAPROC. This flag cannot be used without the BASS_STREAM_DECODE flag or with the BASS_SAMPLE_FLOAT flag, unless a CDDATAPROC is provided to receive the sub-channel data.
BASS_CD_SUBCHANNEL_NOHWRead sub-channel data, without using any hardware de-interleaving. This is identical to the BASS_CD_SUBCHANNEL flag, except that the de-interleaving is always performed by BASSCD even if the drive is apparently capable of de-interleaving itself.
BASS_CD_C2ERRORSInclude C2 error info. 296 bytes of C2 error info is inserted after each 2352 bytes of audio data (and optionally 96 bytes of sub-channel data) or delivered to the provided CDDATAPROC. The first 294 bytes contain the C2 error bits (one bit for each byte of audio), followed by a byte containing the logical "OR" of all 294 bytes, which can be used to quickly check if there were any C2 errors. The final byte is just padding. This flag cannot be used without the BASS_STREAM_DECODE flag or with the BASS_SAMPLE_FLOAT flag, unless a CDDATAPROC is provided to receive the C2 error info.
procA callback function to receive sub-channel data and C2 error info... NULL = no callback. If a callback function is provided, sub-channel data and C2 error info will be delivered to it rather than being inserted amongst the sample data.
userUser instance data to pass to the callback function.

Return value

If successful, the new stream's handle is returned, else 0 is returned. Use BASS_ErrorGetCode to get the error code.

Error codes

BASS_ERROR_INITBASS_Init has not been successfully called.
BASS_ERROR_DEVICEdrive is invalid.
BASS_ERROR_ALREADYA stream using this drive already exists.
BASS_ERROR_ILLPARAMThe BASS_CD_SUBCHANNEL and BASS_CD_C2ERRORS flags cannot be used without the BASS_STREAM_DECODE flag or with the BASS_SAMPLE_FLOAT flag, unless a CDDATAPROC is provided.
BASS_ERROR_NOCDThere is no CD in the drive.
BASS_ERROR_CDTRACKtrack is invalid.
BASS_ERROR_NOTAUDIOThe track is not an audio track.
BASS_ERROR_NOTAVAILReading sub-channel data and/or C2 error info is not supported by the drive, or a read offset is in effect, in which case a CDDATAPROC must be provided to receive sub-channel data or C2 error info.
BASS_ERROR_FORMATThe sample format is not supported by the device/drivers. If the stream is more than stereo or the BASS_SAMPLE_FLOAT flag is used, it could be that they are not supported.
BASS_ERROR_SPEAKERThe specified SPEAKER flags are invalid. The device/drivers do not support them, they are attempting to assign a stereo stream to a mono speaker or 3D functionality is enabled.
BASS_ERROR_MEMThere is insufficient memory.
BASS_ERROR_UNKNOWNSome other mystery problem!

Remarks

This function is identical to BASS_CD_StreamCreate, but with the additional option of providing a callback function to receive sub-channel data and C2 error info.

See also

BASS_CD_GetTracks, BASS_CD_StreamCreate, BASS_CD_StreamCreateFileEx, BASS_CD_StreamSetTrack

BASS_ChannelGetInfo, BASS_ChannelGetLength, BASS_ChannelPlay, BASS_ChannelSetAttribute, BASS_ChannelSetDSP, BASS_ChannelSetFX, BASS_ChannelSetLink, BASS_StreamFree