Пример #1
0
func avcodec_decode_audio(ctx *_CodecContext, buffer []byte, size *int, packet *avPacket) int {
	return int(C.avcodec_decode_audio3(
		ctx.ctx,
		(*C.int16_t)(unsafe.Pointer(&buffer[0])),
		(*C.int)(unsafe.Pointer(size)),
		(*C.AVPacket)(unsafe.Pointer(packet))))
}
Пример #2
0
func (c *Decoder) decodeAudio(p Packet) *Frame {
	packet := new(C.AVPacket)
	C.av_init_packet(packet)
	defer C.av_free_packet(packet)

	packet.pts = C.int64_t(p.Pts)
	packet.dts = C.int64_t(p.Dts)
	packet.size = C.int(p.Size)
	packet.data = (*C.uint8_t)(unsafe.Pointer(&p.Data[0]))
	packet.stream_index = C.int(p.Stream)
	packet.flags = C.int(p.Flags)
	packet.duration = C.int(p.Duration)
	packet.pos = C.int64_t(p.Pos)
	//size:=packet.size;
	samples_size := C.int(C.AVCODEC_MAX_AUDIO_FRAME_SIZE)
	//bps := C.av_get_bits_per_sample_fmt(c.Ctx.sample_fmt) >> 3;

	outbuf := (*C.uint8_t)(C.av_malloc(C.uint(samples_size)))
	defer C.av_free(unsafe.Pointer(outbuf))
	C.avcodec_decode_audio3(c.Ctx, (*C.int16_t)(unsafe.Pointer(outbuf)), &samples_size, packet)
	//println(data_len)
	return nil
}