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Ogg streaming + better tests

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This commit is contained in:
bloeys
2022-06-27 03:36:39 +04:00
parent daf46e5d41
commit 2af3583f6f
4 changed files with 132 additions and 28 deletions
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16
wav_streamer.go
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@ -36,13 +36,14 @@ func (ws *WavStreamer) Seek(offset int64, whence int) (int64, error) {
ws.mutex.Lock()
defer ws.mutex.Unlock()
//This will only seek the underlying file but not the actual decoder because it can't seek
n, err := ws.Dec.Seek(offset, whence)
if err != nil {
return n, err
}
//The underlying parser can not seek back, so in that case we have to rewind the decoder
//then seek forward.
//Since underlying decoder can't seek back, if the requested movement is back we have to rewind the decoder
//then seek forward to the requested position.
if n < ws.Pos {
err = ws.Dec.Rewind()
@ -50,15 +51,14 @@ func (ws *WavStreamer) Seek(offset int64, whence int) (int64, error) {
return 0, err
}
//Anything before PCMStart is not valid sound, so the minimum seek back we allow is till PCMStart.
if n >= ws.PCMStart {
//Anything before PCMStart is not valid sound, so the minimum seek back we allow is PCMStart
if n < ws.PCMStart {
n = ws.PCMStart
} else {
n, err = ws.Dec.Seek(offset, whence)
if err != nil {
return n, err
}
} else {
n = ws.PCMStart
}
}
@ -66,6 +66,7 @@ func (ws *WavStreamer) Seek(offset int64, whence int) (int64, error) {
return n, err
}
//Size returns number of bytes
func (ws *WavStreamer) Size() int64 {
return ws.Dec.PCMLen()
}
@ -77,6 +78,7 @@ func NewWavStreamer(f *os.File, wavDec *wav.Decoder) (*WavStreamer, error) {
return nil, err
}
//The actual data starts somewhat within the file, not at 0
currPos, err := wavDec.Seek(0, 1)
if err != nil {
return nil, err