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2023-10-31 09:16:44 CST W44D2

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aggresss
2023-10-31 09:16:44 +08:00
parent f00ecdba54
commit 05345f7cdc
100 changed files with 3340 additions and 3229 deletions
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34
swresample.go
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@@ -14,7 +14,7 @@ const (
SWR_FLAG_RESAMPLE = C.SWR_FLAG_RESAMPLE
)
// Dithering algorithms
// Dithering algorithms.
type SwrDitherType = C.enum_SwrDitherType
const (
@@ -33,7 +33,7 @@ const (
SWR_DITHER_NB = SwrDitherType(C.SWR_DITHER_NB)
)
// Resampling Engines
// Resampling Engines.
type SwrEngine = C.enum_SwrEngine
const (
@@ -42,7 +42,7 @@ const (
SWR_ENGINE_NB = SwrEngine(C.SWR_ENGINE_NB)
)
// Resampling Filter Types
// Resampling Filter Types.
type SwrFilterType = C.enum_SwrFilterType
const (
@@ -75,6 +75,8 @@ func SwrIsInitialized(s *SwrContext) int32 {
return (int32)(C.swr_is_initialized((*C.struct_SwrContext)(s)))
}
// Deprecated: Use SwrAllocSetOpts2() instead.
//
// SwrAllocSetOpts allocates SwrContext if needed and set/reset common parameters.
func SwrAllocSetOpts(s *SwrContext,
outChLayout int64, outSampleFmt AVSampleFormat, outSampleRate int32,
@@ -86,6 +88,17 @@ func SwrAllocSetOpts(s *SwrContext,
(C.int)(logOffset), VoidPointer(logCtx)))
}
// SwrAllocSetOpts2 allocates SwrContext if needed and set/reset common parameters.
func SwrAllocSetOpts2(s **SwrContext,
outChLayout *AVChannelLayout, outSampleFmt AVSampleFormat, outSampleRate int32,
inChLayout *AVChannelLayout, inSampleFmt AVSampleFormat, inSampleRate int32,
logOffset int32, logCtx CVoidPointer) int32 {
return (int32)(C.swr_alloc_set_opts2((**C.struct_SwrContext)(unsafe.Pointer(s)),
(*C.struct_AVChannelLayout)(outChLayout), (C.enum_AVSampleFormat)(outSampleFmt), (C.int)(outSampleRate),
(*C.struct_AVChannelLayout)(inChLayout), (C.enum_AVSampleFormat)(inSampleFmt), (C.int)(inSampleRate),
(C.int)(logOffset), VoidPointer(logCtx)))
}
// SwrFree frees the given SwrContext and set the pointer to NULL.
func SwrFree(s **SwrContext) {
C.swr_free((**C.struct_SwrContext)(unsafe.Pointer(s)))
@@ -109,7 +122,7 @@ func SwrNextPts(s *SwrContext, pts int64) int64 {
return (int64)(C.swr_next_pts((*C.struct_SwrContext)(s), (C.int64_t)(pts)))
}
// SwrSetCompensation activates resampling compensation ("soft" compensation).
// SwrSetCompensation activates resampling compensation ("soft" compensation).
// This function is internally called when needed in SwrNextPts().
func SwrSetCompensation(s *SwrContext, sampleDelta, compensationDistance int32) int32 {
return (int32)(C.swr_set_compensation((*C.struct_SwrContext)(s),
@@ -121,6 +134,8 @@ func SwrSetChannelMapping(s *SwrContext, channelMap *int32) int32 {
return (int32)(C.swr_set_channel_mapping((*C.struct_SwrContext)(s), (*C.int)(channelMap)))
}
// Deprecated: Use SwrBuildMatrix2() instead.
//
// SwrBuildMatrix generates a channel mixing matrix.
func SwrBuildMatrix(inLayout, outLayout uint64,
centerMixLevel, surroundMixLevel, lfeMixLevel float64,
@@ -132,6 +147,17 @@ func SwrBuildMatrix(inLayout, outLayout uint64,
(*C.double)(matrix), (C.int)(stride), (C.enum_AVMatrixEncoding)(matrixEncoding), VoidPointer(logCtx)))
}
// SwrBuildMatrix2 generates a channel mixing matrix.
func SwrBuildMatrix2(inLayout, outLayout *AVChannelLayout,
centerMixLevel, surroundMixLevel, lfeMixLevel float64,
rematrixMaxval, rematrixVolume float64,
matrix *float64, stride int, matrixEncoding AVMatrixEncoding, logCtx CVoidPointer) int32 {
return (int32)(C.swr_build_matrix2((*C.struct_AVChannelLayout)(inLayout), (*C.struct_AVChannelLayout)(outLayout),
(C.double)(centerMixLevel), (C.double)(surroundMixLevel), (C.double)(lfeMixLevel),
(C.double)(rematrixMaxval), (C.double)(rematrixVolume),
(*C.double)(matrix), (C.ptrdiff_t)(stride), (C.enum_AVMatrixEncoding)(matrixEncoding), VoidPointer(logCtx)))
}
// SwrSetMatrix sets a customized remix matrix.
func SwrSetMatrix(s *SwrContext, matrix *float64, stride int32) int32 {
return (int32)(C.swr_set_matrix((*C.struct_SwrContext)(s), (*C.double)(matrix), (C.int)(stride)))