113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2016-present The ZLMediaKit project authors. All Rights Reserved.
|
|
*
|
|
* This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
|
|
*
|
|
* Use of this source code is governed by MIT-like license that can be found in the
|
|
* LICENSE file in the root of the source tree. All contributing project authors
|
|
* may be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "Opus.h"
|
|
#include "Extension/Factory.h"
|
|
#include "Extension/CommonRtp.h"
|
|
#include "Extension/CommonRtmp.h"
|
|
|
|
using namespace std;
|
|
using namespace toolkit;
|
|
|
|
namespace mediakit {
|
|
|
|
/**
|
|
* Opus类型SDP
|
|
* Opus type SDP
|
|
|
|
* [AUTO-TRANSLATED:6c0a72ed]
|
|
*/
|
|
class OpusSdp : public Sdp {
|
|
public:
|
|
/**
|
|
* 构造opus sdp
|
|
* @param payload_type rtp payload type
|
|
* @param sample_rate 音频采样率
|
|
* @param channels 通道数
|
|
* @param bitrate 比特率
|
|
* Construct opus sdp
|
|
* @param payload_type rtp payload type
|
|
* @param sample_rate audio sample rate
|
|
* @param channels number of channels
|
|
* @param bitrate bitrate
|
|
|
|
|
|
* [AUTO-TRANSLATED:40713e9d]
|
|
*/
|
|
OpusSdp(int payload_type, int sample_rate, int channels, int bitrate) : Sdp(sample_rate, payload_type) {
|
|
_printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
|
|
if (bitrate) {
|
|
_printer << "b=AS:" << bitrate << "\r\n";
|
|
}
|
|
_printer << "a=rtpmap:" << payload_type << " " << getCodecName(CodecOpus) << "/" << sample_rate << "/" << channels << "\r\n";
|
|
}
|
|
|
|
string getSdp() const override {
|
|
return _printer;
|
|
}
|
|
|
|
private:
|
|
_StrPrinter _printer;
|
|
};
|
|
|
|
Sdp::Ptr OpusTrack::getSdp(uint8_t payload_type) const {
|
|
if (!ready()) {
|
|
WarnL << getCodecName() << " Track未准备好";
|
|
return nullptr;
|
|
}
|
|
return std::make_shared<OpusSdp>(payload_type, getAudioSampleRate(), getAudioChannel(), getBitRate() / 1024);
|
|
}
|
|
|
|
namespace {
|
|
|
|
CodecId getCodec() {
|
|
return CodecOpus;
|
|
}
|
|
|
|
Track::Ptr getTrackByCodecId(int sample_rate, int channels, int sample_bit) {
|
|
return std::make_shared<OpusTrack>();
|
|
}
|
|
|
|
Track::Ptr getTrackBySdp(const SdpTrack::Ptr &track) {
|
|
return std::make_shared<OpusTrack>();
|
|
}
|
|
|
|
RtpCodec::Ptr getRtpEncoderByCodecId(uint8_t pt) {
|
|
return std::make_shared<CommonRtpEncoder>();
|
|
}
|
|
|
|
RtpCodec::Ptr getRtpDecoderByCodecId() {
|
|
return std::make_shared<CommonRtpDecoder>(CodecOpus);
|
|
}
|
|
|
|
RtmpCodec::Ptr getRtmpEncoderByTrack(const Track::Ptr &track) {
|
|
return std::make_shared<CommonRtmpEncoder>(track);
|
|
}
|
|
|
|
RtmpCodec::Ptr getRtmpDecoderByTrack(const Track::Ptr &track) {
|
|
return std::make_shared<CommonRtmpDecoder>(track);
|
|
}
|
|
|
|
Frame::Ptr getFrameFromPtr(const char *data, size_t bytes, uint64_t dts, uint64_t pts) {
|
|
return std::make_shared<FrameFromPtr>(CodecOpus, (char *)data, bytes, dts, pts);
|
|
}
|
|
|
|
} // namespace
|
|
|
|
CodecPlugin opus_plugin = { getCodec,
|
|
getTrackByCodecId,
|
|
getTrackBySdp,
|
|
getRtpEncoderByCodecId,
|
|
getRtpDecoderByCodecId,
|
|
getRtmpEncoderByTrack,
|
|
getRtmpDecoderByTrack,
|
|
getFrameFromPtr };
|
|
|
|
}//namespace mediakit
|