Method GetSourceInfo

dali/c_api_2/data_objects.h:712–718

  }

  const char *GetSourceInfo(int sample) const & override {
    ValidateSampleIdx(sample);
    const char *info = tl_->GetMeta(sample).GetSourceInfo().c_str();
    if (info && !*info)
      return nullptr;  // return empty string as NULL
    return info;
  }

  void SetSourceInfo(int sample, const char *source_info) override {
    ValidateSampleIdx(sample);