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Tryanks
a541263dfd
* n7.1: Migrate deprecated methods, fields, and definitions * n7.1: Add new definitions * n7.1: Add new field * n7.1: Update doxygen url * n8.0: Clean up remaining n7.x deprecations * n8.0: Add new CodecIDs and fields * n8.0: Migration to n8.0 * n8.0: Refactor swscale with Publicly expose struct SwsContext, enum SwsDither, and enum SwsAlphaBlend n8.0: Stash commit * n8.0: Update doxygen url * n8.0: Fix windows.patch to apply new library.mak in n8.0 * n8.0: Clean up and organize the APIs, remove redundant implementations, and reorder the enum fields * n8.0: Refactor SoftwareScaleContext to simplify and optimize update logic and remove redundant code * Add tests for supported sample rates and frame rates in codec encoders * Revert changes in `Free` and `Class`, other minor improvements * Adapt the examples to the current library * Update breaking changes
64 lines
2.0 KiB
Go
64 lines
2.0 KiB
Go
package astiav
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//#include <libavutil/audio_fifo.h>
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import "C"
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import "unsafe"
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// https://ffmpeg.org/doxygen/8.0/structAVAudioFifo.html
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type AudioFifo struct {
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c *C.AVAudioFifo
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}
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func newAudioFifoFromC(c *C.AVAudioFifo) *AudioFifo {
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if c == nil {
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return nil
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}
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return &AudioFifo{c: c}
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#ga9d792394f0615a329aec47847f8f8784
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func AllocAudioFifo(sampleFmt SampleFormat, channels int, nbSamples int) *AudioFifo {
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return newAudioFifoFromC(C.av_audio_fifo_alloc(C.enum_AVSampleFormat(sampleFmt), C.int(channels), C.int(nbSamples)))
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#ga27c1e16e5f09940d6016b1971c0b5742
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func (a *AudioFifo) Realloc(nbSamples int) error {
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return newError(C.av_audio_fifo_realloc(a.c, C.int(nbSamples)))
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#gaa0a4742ecac52a999e8b4478d27f3b9b
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func (a *AudioFifo) Size() int {
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return int(C.av_audio_fifo_size(a.c))
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#ga2bed2f01fe34228ee8a73617b3177d00
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func (a *AudioFifo) Space() int {
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return int(C.av_audio_fifo_space(a.c))
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#ga51d81a165872919bbfdee3f00f6d6530
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func (a *AudioFifo) Write(f *Frame) (int, error) {
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ret := C.av_audio_fifo_write(a.c, (*unsafe.Pointer)(unsafe.Pointer(&f.c.data[0])), C.int(f.NbSamples()))
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if err := newError(ret); err != nil {
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return 0, err
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}
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return int(ret), nil
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#ga5e2c87bbeefba0d229b4109b4b755529
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func (a *AudioFifo) Read(f *Frame) (int, error) {
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ret := C.av_audio_fifo_read(a.c, (*unsafe.Pointer)(unsafe.Pointer(&f.c.data[0])), C.int(f.NbSamples()))
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if err := newError(ret); err != nil {
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return 0, err
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}
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return int(ret), nil
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}
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// https://ffmpeg.org/doxygen/8.0/group__lavu__audiofifo.html#ga74e029e47f7aa99217ad1f315c434875
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func (a *AudioFifo) Free() {
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if a.c != nil {
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C.av_audio_fifo_free(a.c)
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a.c = nil
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}
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}
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