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Minor audio fifo tweaks

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This commit is contained in:
Quentin Renard
2024-09-05 14:06:03 +02:00
parent 38cb56ee50
commit dde447cb62
4 changed files with 45 additions and 47 deletions
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18
audio_fifo.go
View File

@@ -10,7 +10,7 @@ type AudioFifo struct {
c *C.AVAudioFifo
}
func newAudioFifoFromC(c *C.struct_AVAudioFifo) *AudioFifo {
func newAudioFifoFromC(c *C.AVAudioFifo) *AudioFifo {
if c == nil {
return nil
}
@@ -34,19 +34,19 @@ func (a *AudioFifo) Space() int {
}
func (a *AudioFifo) Write(f *Frame) (int, error) {
ret := int(C.av_audio_fifo_write(a.c, (*unsafe.Pointer)(unsafe.Pointer(&f.c.data[0])), C.int(f.NbSamples())))
if ret < 0 {
return ret, newError(C.int(ret))
ret := C.av_audio_fifo_write(a.c, (*unsafe.Pointer)(unsafe.Pointer(&f.c.data[0])), C.int(f.NbSamples()))
if err := newError(ret); err != nil {
return 0, err
}
return ret, nil
return int(ret), nil
}
func (a *AudioFifo) Read(f *Frame) (int, error) {
ret := int(C.av_audio_fifo_read(a.c, (*unsafe.Pointer)(unsafe.Pointer(&f.c.data[0])), C.int(f.NbSamples())))
if ret < 0 {
return ret, newError(C.int(ret))
ret := C.av_audio_fifo_read(a.c, (*unsafe.Pointer)(unsafe.Pointer(&f.c.data[0])), C.int(f.NbSamples()))
if err := newError(ret); err != nil {
return 0, err
}
return ret, nil
return int(ret), nil
}
func (a *AudioFifo) Free() {

58
audio_fifo_test.go
View File

@@ -7,39 +7,37 @@ import (
)
func TestAudioFIFO(t *testing.T) {
af := AllocAudioFifo(
SampleFormatFltp,
2,
960)
afn := 2000
af := AllocAudioFifo(SampleFormatFltp, 2, afn)
defer af.Free()
writeSamples := 1024
readSamples := 120
writeFrame := AllocFrame()
writeFrame.SetNbSamples(writeSamples)
writeFrame.SetChannelLayout(ChannelLayoutStereo)
writeFrame.SetSampleFormat(SampleFormatFltp)
writeFrame.SetSampleRate(48000)
writeFrame.AllocBuffer(0)
readFrame := AllocFrame()
readFrame.SetNbSamples(readSamples)
readFrame.SetChannelLayout(ChannelLayoutStereo)
readFrame.SetSampleFormat(SampleFormatFltp)
readFrame.SetSampleRate(48000)
readFrame.AllocBuffer(0)
wn := 1024
wf := AllocFrame()
wf.SetNbSamples(wn)
wf.SetChannelLayout(ChannelLayoutStereo)
wf.SetSampleFormat(SampleFormatFltp)
wf.SetSampleRate(48000)
wf.AllocBuffer(0)
written, err := af.Write(writeFrame)
rn := 120
rf := AllocFrame()
rf.SetNbSamples(rn)
rf.SetChannelLayout(ChannelLayoutStereo)
rf.SetSampleFormat(SampleFormatFltp)
rf.SetSampleRate(48000)
rf.AllocBuffer(0)
w, err := af.Write(wf)
require.NoError(t, err)
require.Equal(t, writeSamples, written)
read, err := af.Read(readFrame)
require.Equal(t, wn, w)
r, err := af.Read(rf)
require.NoError(t, err)
require.Equal(t, readSamples, read)
require.Equal(t, af.Size(), writeSamples-readSamples)
reallocSamples := 3000
err = af.Realloc(reallocSamples)
require.NoError(t, err)
expectedAfSize := writeSamples - readSamples
require.Equal(t, af.Space(), reallocSamples-expectedAfSize)
// It still has the same amount of data
require.Equal(t, af.Size(), expectedAfSize)
require.Equal(t, rn, r)
require.Equal(t, wn-rn, af.Size())
require.Equal(t, afn-af.Size(), af.Space())
afn = 3000
require.NoError(t, af.Realloc(afn))
require.Equal(t, wn-rn, af.Size())
require.Equal(t, afn-af.Size(), af.Space())
}

8
channel_layout.go
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@@ -67,8 +67,8 @@ func (l ChannelLayout) String() string {
func (l ChannelLayout) Describe(b []byte) (int, error) {
ret := C.av_channel_layout_describe(l.c, (*C.char)(unsafe.Pointer(&b[0])), C.size_t(len(b)))
if ret < 0 {
return 0, newError(ret)
if err := newError(ret); err != nil {
return 0, err
}
if ret > 0 && b[ret-1] == '\x00' {
ret -= 1
@@ -82,8 +82,8 @@ func (l ChannelLayout) Valid() bool {
func (l ChannelLayout) Compare(l2 ChannelLayout) (equal bool, err error) {
ret := C.av_channel_layout_compare(l.c, l2.c)
if ret < 0 {
return false, newError(ret)
if err := newError(ret); err != nil {
return false, err
}
return ret == 0, nil
}

8
frame.go
View File

@@ -83,16 +83,16 @@ func (f *Frame) SetKeyFrame(k bool) {
func (f *Frame) ImageBufferSize(align int) (int, error) {
ret := C.av_image_get_buffer_size((C.enum_AVSampleFormat)(f.c.format), f.c.width, f.c.height, C.int(align))
if ret < 0 {
return 0, newError(ret)
if err := newError(ret); err != nil {
return 0, err
}
return int(ret), nil
}
func (f *Frame) ImageCopyToBuffer(b []byte, align int) (int, error) {
ret := C.av_image_copy_to_buffer((*C.uint8_t)(unsafe.Pointer(&b[0])), C.int(len(b)), &f.c.data[0], &f.c.linesize[0], (C.enum_AVSampleFormat)(f.c.format), f.c.width, f.c.height, C.int(align))
if ret < 0 {
return 0, newError(ret)
if err := newError(ret); err != nil {
return 0, err
}
return int(ret), nil
}