#include <alsa/asoundlib.h>
#include <chrono>
#include <easymedia/stream.h>
#include <easymedia/buffer.h>
#include <easymedia/utils.h>

extern "C" {
#include <libavformat/avformat.h>
#include <libavutil/time.h>
#include <libavutil/timestamp.h>
#include <libavutil/opt.h>
#include <libavutil/mathematics.h>
#include <libavutil/samplefmt.h>
#include <libswresample/swresample.h>
}

inline int free_memory(void *buffer) {
  assert(buffer);
  free(buffer);
  return 0;
}

inline void msleep(int ms) {
    std::this_thread::sleep_for(
                std::chrono::milliseconds(ms));
}
// us
inline int64_t gettimeofday() {
  std::chrono::microseconds us =
      std::chrono::duration_cast<std::chrono::microseconds>(
          std::chrono::system_clock::now().time_since_epoch());
  return us.count();
}
#define TRIM(s, chars) \
do{ \
    std::string map(0xFF, '\0'); \
    for (auto &ch : chars) { \
        map[(unsigned char &)ch] = '\1'; \
    } \
    while( s.size() && map.at((unsigned char &)s.back())) s.pop_back(); \
    while( s.size() && map.at((unsigned char &)s.front())) s.erase(0,1); \
}while(0);
//去除前后的空格、回车符、制表符
inline std::string &trim(std::string &s, const std::string &chars) {
    TRIM(s, chars);
    return s;
}

//打开声卡设备
//dev_num: 声卡id; direction: capture/playback; streamPtr: 返回的设备指针(rkStreamPtr类型)
#define COMMON_STR(v) #v
#define RkStreamInit(dev_num, direction, sampleInfo, streamPtr) \
    do {                        \
        std::string params;     \
        const char *capName = COMMON_STR(alsa_##direction##_stream); \
        char devName[20];\
        sprintf(devName, "plughw:%d", dev_num);\
        std::string fmtStr = SampleFmtToString(sampleInfo.fmt);    \
        int chns = sampleInfo.channels;                             \
        int rate = sampleInfo.sample_rate;                          \
        PARAM_STRING_APPEND(params, KEY_DEVICE, devName);   \
        PARAM_STRING_APPEND(params, KEY_SAMPLE_FMT, fmtStr);    \
        PARAM_STRING_APPEND_TO(params, KEY_CHANNELS, chns); \
        PARAM_STRING_APPEND_TO(params, KEY_SAMPLE_RATE, rate);  \
        printf("params:\n%s\n", params.c_str());   \
        streamPtr = easymedia::REFLECTOR(Stream)::Create<easymedia::Stream>( \
                    capName, params.c_str()); \
    } while(0);

using rkStreamPtr = std::shared_ptr<easymedia::Stream>;