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Added FindPixelFormatByName + frame.AllocSamples

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This commit is contained in:
Quentin Renard
2022-02-20 11:23:28 +01:00
parent 477b147104
commit 12f9a2e067
6 changed files with 43 additions and 3 deletions
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12
frame.go
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@@ -2,6 +2,7 @@ package astiav
//#cgo pkg-config: libavutil
//#include <libavutil/frame.h>
//#include <libavutil/samplefmt.h>
import "C"
const NumDataPointers = uint(C.AV_NUM_DATA_POINTERS)
@@ -26,6 +27,10 @@ func (f *Frame) AllocBuffer(align int) error {
return newError(C.av_frame_get_buffer(f.c, C.int(align)))
}
func (f *Frame) AllocSamples(sf SampleFormat, nbChannels, nbSamples, align int) error {
return newError(C.av_samples_alloc(&f.c.data[0], &f.c.linesize[0], C.int(nbChannels), C.int(nbSamples), (C.enum_AVSampleFormat)(sf), C.int(align)))
}
func (f *Frame) ChannelLayout() ChannelLayout {
return ChannelLayout(f.c.channel_layout)
}
@@ -38,7 +43,12 @@ func (f *Frame) Data() [NumDataPointers][]byte {
b := [NumDataPointers][]byte{}
for i := 0; i < int(NumDataPointers); i++ {
b[i] = bytesFromC(func(size *C.int) *C.uint8_t {
*size = f.c.linesize[i] * f.c.height
*size = f.c.linesize[i]
if f.c.height > 0 {
*size = *size * f.c.height
} else if f.c.channels > 0 {
*size = *size * f.c.channels
}
return f.c.data[i]
})
}