opus_encoder_create()返回一个空指针

Question

我在使用opus-codec时遇到了一些麻烦.

opus_encoder_create()返回一个空指针并抛出一个OPUS_BAD_ARG错误

OpusEncoder * m_enc;
m_enc = opus_encoder_create(44100, 2, OPUS_APPLICATION_VOIP, &this->m_error);

这是我用gdb得到的:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000001fa4
opus_encode_float (st=0x0, pcm=0x100717e20, frame_size=8, data=0x100840c00 "", out_data_bytes=4000) at opus_encoder.c:581
581     st->rangeFinal = 0;
(gdb) bt
#0  opus_encode_float (st=0x0, pcm=0x100717e20, frame_size=8, data=0x100840c00 "", out_data_bytes=4000) at opus_encoder.c:581
#1  0x0000000100002b1d in Encoder::Encode (this=0x7fff5fbffa70, audioFrame=0x100717e20, frameSize=8) at Encoder.cpp:39
#2  0x000000010000192c in main () at main.cpp:101

有什么想法吗？谢谢.

Answer 1

文档列出了支持的采样频率:

这必须是8000,12000,16000,24000或48000之一.

请注意,44100不在列表中; 这似乎是一个"坏参数"错误的绝佳原因.