Documentation ¶
Index ¶
- Constants
- Variables
- func ErrorFromResult(r uint) error
- type AacencParam
- type Encoder
- func (e *Encoder) EncodePcmBlock(inPcm []int16) (aac []byte, err uint)
- func (e *Encoder) GetOutputData(poutbuffer *VoCodecBuffer, poutinfo *VoAudioOutputinfo) uint
- func (e *Encoder) GetParam(uparamid int, pdata unsafe.Pointer) uint
- func (e *Encoder) Init(vtype int32) uint
- func (e *Encoder) SetInputData(pinput *VoCodecBuffer) uint
- func (e *Encoder) SetParam(uparamid int, pdata unsafe.Pointer) uint
- func (e *Encoder) SetParamAac(aacSamplerate, nChannels int) (err uint)
- func (e *Encoder) Uninit() uint
- type VoAudioFormat
- type VoAudioOutputinfo
- type VoCodecBuffer
Constants ¶
View Source
const ( // AAC Param ID VoPidAacMdoule = 0x42211000 VoPidAacEncparam = VoPidAacMdoule | 0x0040 // AAC decoder error ID VoErrAacMdoule = 0x82210000 VoErrAacUnsfileformat = (VoErrAacMdoule | 0xF001) VoErrAacUnsprofile = (VoErrAacMdoule | 0xF002) // The base param ID for AUDIO codec VoPidAudioBase = 0x42000000 // The format data of audio in track VoPidAudioFormat = (VoPidAudioBase | 0x0001) // The sample rate of audio VoPidAudioSampleRate = (VoPidAudioBase | 0x0002) // The channel of audio VoPidAudioChannels = (VoPidAudioBase | 0x0003) // The bit rate of audio VoPidAudioBitrate = (VoPidAudioBase | 0x0004) // The channel mode of audio VoPidAudioChannelmode = (VoPidAudioBase | 0x0005) // The base of common param ID VoPidCommonBase = 0x40000000 // Query the memory needed; Reserved VoPidCommonQueryMem = (VoPidCommonBase | 0) // Set or get the input buffer type VoPidCommonInputType = (VoPidCommonBase | 0) // Query it has resource to be used VoPidCommonHasResource = (VoPidCommonBase | 0) // Decoder track header data VoPidCommonHeadData = (VoPidCommonBase | 0) // VoPidCommonFlush as defined in include/voIndex.h:182 VoPidCommonFlush = (VoPidCommonBase | 0) )
Constants.
View Source
const ( VoErrNone = 0x00000000 VoErrFinish = 0x00000001 VoErrFailed = 0x80000001 VoErrOutofMemory = 0x80000002 VoErrNotImplement = 0x80000003 VoErrInvalidArg = 0x80000004 VoErrInputBufferSmall = 0x80000005 VoErrOutputBufferSmall = 0x80000006 VoErrWrongStatus = 0x80000007 VoErrWrongParamId = 0x80000008 VoErrLicenseError = 0x80000009 VoErrAudioBase = 0x82000000 VoErrAudioUnsChannel = VoErrAudioBase | 0x0001 VoErrAudioUnsSampleRate = VoErrAudioBase | 0x0002 VoErrAudioUnsFeature = VoErrAudioBase | 0x0003 )
Error codes.
View Source
const ( // Placeholder value when coding is N/A VoAudioCodingUnused int32 = iota // Any variant of PCM coding VoAudioCodingPcm // Any variant of ADPCM encoded data VoAudioCodingAdpcm // Any variant of AMR encoded data VoAudioCodingAmrnb // Any variant of AMR encoded data VoAudioCodingAmrwb // Any variant of AMR encoded data VoAudioCodingAmrwbp // Any variant of QCELP 13kbps encoded data VoAudioCodingQcelp13 // Any variant of EVRC encoded data VoAudioCodingEvrc // Any variant of AAC encoded data, 0xA106 - ISO/MPEG-4 AAC, 0xFF - AAC VoAudioCodingAac // Any variant of AC3 encoded data VoAudioCodingAc3 // Any variant of FLAC encoded data VoAudioCodingFlac // Any variant of MP1 encoded data VoAudioCodingMp1 // Any variant of MP3 encoded data VoAudioCodingMp3 // Any variant of OGG encoded data VoAudioCodingOgg // Any variant of WMA encoded data VoAudioCodingWma // Any variant of RA encoded data VoAudioCodingRa // Any variant of MIDI encoded data VoAudioCodingMidi // Any variant of dra encoded data VoAudioCodingDra // Any variant of dra encoded data VoAudioCodingG729 )
Enumeration used to define the possible audio coding formats.
View Source
const ( // Contains only raw aac data in a frame VoAacRawdata int32 = iota // Contains ADTS header + raw AAC data in a frame VoAacAdts )
The frame type that the decoder supports.
View Source
const ( // Center channel VoChannelCenter int32 = 1 // Front left channel VoChannelFrontLeft = 1 << 1 // Front right channel VoChannelFrontRight = 1 << 2 // Side left channel VoChannelSideLeft = 1 << 3 // Side right channel VoChannelSideRight = 1 << 4 // Back left channel VoChannelBackLeft = 1 << 5 // Back right channel VoChannelBackRight = 1 << 6 // Back center channel VoChannelBackCenter = 1 << 7 // Low-frequency effects bass channel VoChannelLfeBass = 1 << 8 // Include all channels (default) VoChannelAll = 0xffff )
The channel type value.
View Source
const ( // Input contains completely frame(s) data VoInputFrame int32 = iota + 1 // Input is stream data. VoInputStream )
Input stream format, Frame or Stream.
Variables ¶
View Source
var ( ErrFinish = errors.New("aac: error finish") ErrFailed = errors.New("aac: process data failed") ErrOutOfMemory = errors.New("aac: out of memory") ErrNotImplement = errors.New("aac: feature not implemented") ErrInvalidArg = errors.New("aac: invalid argument") ErrInputBufferSmall = errors.New("aac: input buffer data too small") ErrOutputBufferSmall = errors.New("aac: output buffer size too small") ErrWrongStatus = errors.New("aac: wrong encoder run-time status") ErrWrongParamId = errors.New("aac: wrong parameter id") ErrLicenseError = errors.New("aac: license error") ErrAudioBase = errors.New("aac: error audio base") ErrAudioUnsChannel = errors.New("aac: unsupported number of channel") ErrAudioUnsSampleRate = errors.New("aac: unsupported sample rate") ErrAudioUnsFeature = errors.New("aac: unsupported feature") )
Errors.
Functions ¶
func ErrorFromResult ¶
ErrorFromResult returns error for result code
Types ¶
type AacencParam ¶
type AacencParam struct { // Audio file sample rate SampleRate int32 // Encoder bit rate in bits/sec BitRate int32 // Number of channels on input (1,2) NChannels int16 // Whether write adts header AdtsUsed int16 }
AacencParam - the structure for AAC encoder input parameter.
type Encoder ¶
type Encoder struct {
// contains filtered or unexported fields
}
Encoder Thread-safe
func (*Encoder) EncodePcmBlock ¶
EncodePcmBlock - Encodes single interleaved block 1024 * numchannels if buffer size is wrong returns VoErrInvalidArg
func (*Encoder) GetOutputData ¶
func (e *Encoder) GetOutputData(poutbuffer *VoCodecBuffer, poutinfo *VoAudioOutputinfo) uint
GetOutputData - get the outut audio data.
func (*Encoder) SetInputData ¶
func (e *Encoder) SetInputData(pinput *VoCodecBuffer) uint
SetInputData - set input audio data.
func (*Encoder) SetParamAac ¶
SetParamAac set Samplerate & numchannels for AAC encoding
type VoAudioFormat ¶
type VoAudioFormat struct { // Sample rate SampleRate int // Channel count Channels int // Bits per sample SampleBits int }
VoAudioFormat - general audio format info.
type VoAudioOutputinfo ¶
type VoAudioOutputinfo struct { // Sample rate Format VoAudioFormat // Channel count InputUsed uint // Reserved Reserve uint }
VoAudioOutputinfo - general audio output info.
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