新增若干音视频编码类型的默认实现

部分支持VP8/VP9/AV1/JPEG/MP3/H266/ADPCM/SVAC/G722/G723/G729

ext-codec/Opus.cpp

@@ -18,51 +18,9 @@ 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() >> 10);
+    return std::make_shared<DefaultSdp>(payload_type, *this);
 }
 
 namespace {