Use lambda to capture video decode result

src/media/video/decode/ffmpeg/ffmpeg_decoder.h

@@ -0,0 +1,57 @@
+#ifndef _FFMPEG_DECODER_H_
+#define _FFMPEG_DECODER_H_
+
+extern "C" {
+// 编解码
+#include "libavcodec/avcodec.h"
+}
+
+#include "PacketQueue.h"
+#include "cb/FrameDataCallback.h"
+
+class VideoDecoder {
+ public:
+  VideoDecoder(PacketQueue *packetQueue);
+  ~VideoDecoder();
+
+ public:
+  int Init();
+  int Decode(const uint8_t *pData, int nSize);
+  int GetFrame(uint8_t *yuv_data, uint32_t &width, uint32_t &height,
+               uint32_t &size);
+
+  bool open(unsigned int frameRate, unsigned int profile, unsigned int level,
+            char *sps, unsigned int spsLen, char *pps, unsigned int ppsLen);
+
+  void close();
+
+  void decode();
+
+  static void *_decode(void *self) {
+    static_cast<VideoDecoder *>(self)->decode();
+    return nullptr;
+  }
+
+  void setFrameDataCallback(FrameDataCallback *frameDataCallback);
+
+ private:
+  PacketQueue *pPacketQueue;
+  AVCodecContext *pVideoAVCodecCtx;
+  AVFrame *pFrame;
+
+  bool volatile isDecoding;
+  pthread_t decodeThread;
+  pthread_mutex_t *pFrameDataCallbackMutex;
+  FrameDataCallback *pFrameDataCallback;
+
+  char *pSPS;
+  unsigned int volatile gSPSLen;
+  char *pPPS;
+  unsigned int volatile gPPSLen;
+
+  bool volatile isFirstIDR;
+
+  unsigned int gFrameRate;
+};
+
+#endif