- initial work to support EVS

2018-11-30 13:08:57 +02:00
parent 7ba094c8a8
commit 8c16c048dc
2 changed files with 160 additions and 0 deletions
--- a/src/engine/media/MT_EvsCodec.h
+++ b/src/engine/media/MT_EvsCodec.h
@@ -0,0 +1,157 @@
+#ifndef MT_EVSCODEC_H
+#define MT_EVSCODEC_H
+
+#include "../config.h"
+#include <map>
+#include "MT_Codec.h"
+#include "../helper/HL_Pointer.h"
+
+#if defined(USE_EVS_CODEC)
+namespace MT
+{
+  struct AmrCodecConfig
+  {
+    bool mIuUP;
+    bool mOctetAligned;
+    int mPayloadType;
+  };
+
+  class AmrNbCodec : public Codec
+  {
+  protected:
+    void* mEncoderCtx;
+    void* mDecoderCtx;
+    AmrCodecConfig mConfig;
+    unsigned mCurrentDecoderTimestamp;
+    int mSwitchCounter;
+    int mPreviousPacketLength;
+
+  public:
+    class CodecFactory: public Factory
+    {
+    public:
+      CodecFactory(const AmrCodecConfig& config);
+
+      const char* name() override;
+      int samplerate() override;
+      int payloadType() override;
+
+#ifdef USE_RESIP_INTEGRATION
+      void updateSdp(resip::SdpContents::Session::Medium::CodecContainer& codecs, SdpDirection direction) override;
+      int processSdp(const resip::SdpContents::Session::Medium::CodecContainer& codecs, SdpDirection direction) override;
+      void create(CodecMap& codecs) override;
+#endif
+      PCodec create() override;
+
+    protected:
+      AmrCodecConfig mConfig;
+    };
+
+    AmrNbCodec(const AmrCodecConfig& config);
+
+    virtual ~AmrNbCodec();
+    const char* name() override;
+    int pcmLength() override;
+    int rtpLength() override;
+    int frameTime() override;
+    int samplerate() override;
+    int encode(const void* input, int inputBytes, void* output, int outputCapacity) override;
+    int decode(const void* input, int inputBytes, void* output, int outputCapacity) override;
+    int plc(int lostFrames, void* output, int outputCapacity) override;
+    int getSwitchCounter() const;
+  };
+
+  class AmrWbCodec : public Codec
+  {
+  protected:
+    void* mEncoderCtx;
+    void* mDecoderCtx;
+    AmrCodecConfig mConfig;
+    uint64_t mCurrentDecoderTimestamp;
+    int mSwitchCounter;
+    int mPreviousPacketLength;
+
+  public:
+    class CodecFactory: public Factory
+    {
+    public:
+      CodecFactory(const AmrCodecConfig& config);
+
+      const char* name() override;
+      int samplerate() override;
+      int payloadType() override;
+
+#ifdef USE_RESIP_INTEGRATION
+      void updateSdp(resip::SdpContents::Session::Medium::CodecContainer& codecs, SdpDirection direction) override;
+      int processSdp(const resip::SdpContents::Session::Medium::CodecContainer& codecs, SdpDirection direction) override;
+      void create(CodecMap& codecs) override;
+#endif
+      PCodec create() override;
+
+    protected:
+      AmrCodecConfig mConfig;
+    };
+
+    AmrWbCodec(const AmrCodecConfig& config);
+    virtual ~AmrWbCodec();
+
+    const char* name() override;
+    int pcmLength() override;
+    int rtpLength() override;
+    int frameTime() override;
+    int samplerate() override;
+    int encode(const void* input, int inputBytes, void* output, int outputCapacity) override;
+    int decode(const void* input, int inputBytes, void* output, int outputCapacity) override;
+    int plc(int lostFrames, void* output, int outputCapacity) override;
+    int getSwitchCounter() const;
+  };
+
+  class GsmEfrCodec : public Codec
+  {
+  protected:
+    void* mEncoderCtx;
+    void* mDecoderCtx;
+    bool mIuUP;
+
+  public:
+    class GsmEfrFactory: public Factory
+    {
+    public:
+      GsmEfrFactory(bool iuup, int ptype);
+
+      const char* name() override;
+      int samplerate() override;
+      int payloadType() override;
+
+#ifdef USE_RESIP_INTEGRATION
+      void updateSdp(resip::SdpContents::Session::Medium::CodecContainer& codecs, SdpDirection direction) override;
+      int processSdp(const resip::SdpContents::Session::Medium::CodecContainer& codecs, SdpDirection direction) override;
+      void create(CodecMap& codecs) override;
+#endif
+      PCodec create() override;
+
+    protected:
+      bool mIuUP;
+      int mPayloadType;
+    };
+
+    GsmEfrCodec(bool iuup = false);
+
+    virtual ~GsmEfrCodec();
+    const char* name() override;
+    int pcmLength() override;
+    int rtpLength() override;
+    int frameTime() override;
+    int samplerate() override;
+    int encode(const void* input, int inputBytes, void* output, int outputCapacity) override;
+    int decode(const void* input, int inputBytes, void* output, int outputCapacity) override;
+    int plc(int lostFrames, void* output, int outputCapacity) override;
+  };
+
+} // End of MT namespace
+
+
+#endif
+
+#endif // MT_EVSCODE_H
+